Book of Abstracts - Physics ITB Conference Archive

Transcription

The 6th
ASIAN
PHYSICS
SYMPOSIUM
2015
physics
Book of Abstracts
The 6th Asian Physics Symposium
Institut Teknologi Bandung
Jalan Ganesa 10, Bandung, Indonesia
August 18-21, 2015
Book of Abstract |
The 6th Asian Physics Symposium (APS) 2015
Book of Abstracts
The 6th Asian Physics Symposium
Institut Teknologi Bandung Jalan Ganesa 10,
Bandung, Indonesia
August 18-21, 2015
i
| East and West Hall, Institut Teknologi Bandung
August 19-20, 2015
ii
Book of Abstract |
Preface: The 6th Asian Physics Symposium (APS 2015)
We are pleased to welcome all of the participants to the 6th Asian Physics Symposium
(APS 2015). APS 2015, which is organized by the Physics Department, Faculty of
Mathematics and Natural Sciences, Bandung Institute of Technology, in collaboration
with:
HFI (Himpunan Fisika Indonesia)
PAPSI (Physics and Applied Physics Society of Indonesia)
HANI (Himpunan Ahli Nuklir Indonesia)
HRMI (Himpunan Riset Material Indonesia)
HAGI (Himpunan Ahli Geofisika Indonesia) – West Java Chapter
HFMBI (Himpunan Fisikawan Medis dan Biofisikawan Indonesia),
is aimed in providing the forum of scientific communication and interaction among
distinguished scientists working in the physics and its related fields. In this scientific
event the latest research results will present the state-of-the-art development in the field
and help to guide our future research directions. It is also designed to offer the
opportunity of making direct contacts for the young Indonesian scientists and students
with well-known scientists abroad, and thereby fostering the existing research
collaborations and extending international research networking for the future.
The scope of research results to be presented and discussed in this symposium covers
theoretical high energy physics, materials sciences and technology, biophysics and
medical physics, nuclear science and engineering, earth and planetary sciences,
computational physics, instrumentation and measurement, physics education, and
interdisciplinary physics.
The program of APS 2016 features 6 invited talks and 208 contributed oral
presentations, which come from 7 different countries: Japan, South Korea, Singapore,
Malaysia, Iraq, Ethiopia, and Indonesia. All papers will be reviewed after they are
presented in this event. Selected papers will be published in the American Institute of
Physics (AIP) Conference Proceedings series.
To all participants, we hope that you will learn new subjects, make new contacts, and
have fruitful discussions with others. To overseas participants, we wish you a pleasant
stay in Bandung.
Finally, we wish to express our sincere appreciation to all of the presenters for their
valuable contributions and also to the members of the program committee for their
excellent works in selecting abstracts and organizing the program.
August 2015
APS 2015 Committee
iii
August 19-20, 2015
iv
Book of Abstract |
Organizers
Department of Physics, ITB, in collaboration with:
HFI (Himpunan Fisika Indonesia)
PAPSI (Physics and Applied Physics Society of Indonesia)
HANI (Himpunan Ahli Nuklir Indonesia)
HRMI (Himpunan Riset Material Indonesia)
HAGI (Himpunan Ahli Geofisika Indonesia) – West Java Chapter
HFMBI (Himpunan Fisikawan Medis dan Biofisikawan Indonesia)
Chairman:
Abdul Waris, Institut Teknologi Bandung, Indonesia
Technical Chairman:
Syeilendra Pramuditya, Institut Teknologi Bandung, Indonesia
v
August 19-20, 2015
International Scientific Committee
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
vi
Hiroshi Sekimoto (TokyoTech, Japan)
Mitsuru Uesaka (The University of Tokyo, Japan)
Ritsuo Yoshioka (President of ITMSF)
Ahmed Badruzzaman (UC Berkeley, USA)
Sumer Sahin (Atilim University, Turkey)
H. Mehmet Sahin (Gazi University,Turkey)
Yong-Hoon Cho (KAIST, Korea)
Yong-Hee Lee (KAIST, Korea)
Hawoong Jeong (KAIST, Korea)
Abdullah Al Khalewi (KACST, KSA)
Ibrahim Dincer (UOIT, Canada)
Saffa Riffat (University of Nottingham, UK)
Yang Hongxing (Hong Kong Polytechnic University, Hong Kong)
Zaki Suud (ITB, Indonesia)
Khairurrijal (ITB, Indonesia)
Mikrajuddin (ITB, Indonesia)
Umar Fauzi (ITB, Indonesia)
Doddy Sutarno (ITB, Indonesia)
Mitra Djamal (ITB, Indonesia)
Freddy P Zen (ITB, Indonesia)
A. Agung Nugroho (ITB, Indonesia)
R Bagus Endar Bahtiar (ITB, Indonesia)
Terry Mart (UI, Indonesia)
Agus Purwanto (ITS, Indonesia)
Husin Alatas (IPB, Indonesia)
Evvy Kartini (BATAN, Indonesia)
Book of Abstract |
APS 2015 Program
Tuesday, August 18, 2015 – Room 1201 Physics Building ITB
Time
Event
Venue
15.30 - 17.00
Registration
Room 1201 Physics Building, Institut Teknologi Bandung
Day 1 – Wednesday, August 19, 2015 – ITB East Hall & West Hall
Time
Event
Venue
07.30 - 08.30
Registration
Morning Snack
Registration Desk (ITB East Hall / Aula Timur)
08.30 - 09.00 Opening Ceremony
09.00 - 09.45
Prof. L.C. Kwek
09.45 - 10.30
Prof. H. Jeong
10.30 - 10.45
Group Photo
Plenary Session (ITB East Hall / Aula Timur)
ITB East Hall / Aula Timur
10.45 - 11.45 Parallel Session 1 Room 1 Room 2 Room 3 Room 4 Room 5 Room 6
MAT-01 MAT-39 COM-01 BIO-01 EPS-01 NUC-01
11.45 - 13.00
Lunch Break
13.00 - 13.45 Prof. M. Abdullah
13.45 - 14.00
Spare Time
MAT-07 MAT-45 EDU-01 COM-09 EPS-07 NUC-06
vii
August 19-20, 2015
15.15 - 15.30 Afternoon Snack
viii
MAT-12 MAT-51 EDU-07
BIO-05 EPS-14 INS-01
Book of Abstract |
Day 2 – Thursday, August 20, 2015 – ITB East Hall & West Hall
Time
Event
Venue
07.30 - 08.30
Registration
Morning Snack
Registration Desk (ITB East Hall / Aula Timur)
08.30 - 09.15
Prof. T. Hidayat
09.15 - 10.00
Prof. A. Yamaji
10.00 - 10.15
Group Photo
10.15 - 11.30 Parallel Session 4 Room 1 Room 2 Room 3 Room 4 Room 5 Room 6 Room 7
MAT-20 MAT-56 NUC-11 EDU-17 EPS-20 EPS-38 INS-08
11.30 - 13.00
IDP-01
EDU-20 EPS-23 EPS-41 INS-11
MAT-24 MAT-60
IDP-02
EDU-21 EPS-04 EPS-42 INS-12
Lunch Break
13.00 - 13.45 Prof. Y. Morikawa
13.45 - 14.00
MAT-23 MAT-59
Spare Time
14.00 - 15.00 Parallel Session 5 Room 1 Room 2 Room 3 Room 4 Room 5 Room 6 Room 7
MAT-25 COM-05 COM-15 NUC-14 EPS-26 EPS-43 BIO-10
MAT-26 COM-06 COM-16 NUC-15 EPS-28 EPS-44 BIO-11
MAT-29 COM-07 COM-17 IDP-03 EPS-29 EPS-45 BIO-12
MAT-30 COM-08 COM-18 IDP-07 EPS-31 EPS-21 BIO-13
15.00 - 15.15 Afternoon Snack
MAT-32 EDU-30 NUC-16 EDU-22 EPS-32 EPS-48
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August 19-20, 2015
16.30 - 16.45 Closing Ceremony
MAT-37 EDU-33
IDP-08
EDU-28 EPS-35 EPS-51
MAT-38 EDU-34
IDP-10
EDU-29 EPS-37 EPS-52
*Rooms 1 to 7 are all located at ITB East Hall and West Hall
x
CTPNP 2015 Program
*This Program is Intended Only for Theoretical
and High Energy Physics Section on APS 2015
Wednesday, August 19, 2015
Time
07.30 - 08.30
08.30 - 09.00
09.00 - 09.45
10.00 - 11.40
Event
Registration
Morning Snack
Opening Ceremony
Prof. L.C. Kwek
CTPNP Plenary Session
Venue
11.40 - 12.00
12.00 - 13.00
13.00 - 13.30
13.30 - 15.30
Group Photo Session
Lunch Break
Community Meeting
Parallel Session 1
15.30 - 17.00
Parallel Session 2
17.00 - 17.15
Closing Ceremony
Note :
1. Duration for CTPNP Plenary Session is
25 minutes/presenter including Q&A
2. Duration for Parallel Session is 15 minutes/presenter
including Q&A
3. Room 1 is 1201 (Boscha Building)
4. Room 2 is Physics Old Staff Meeting Room
East Hall, ITB
Plenary Session
East Hall, ITB
1201 (Boscha Building)
THE-02
THE-30
THE-03
THE-05
1201
1201
1201
Room 1
Room 2
THE-07
THE-01
THE-04
THE-08
THE-16
THE-09
THE-23
THE-10
THE-06
THE-11
THE-13
THE-12
THE-21
THE-15
THE-25
THE-14
Room 1
Room 2
THE-27
THE-17
THE-19
THE-18
THE-24
THE-32
THE-29
THE-33
THE-31
THE-26
1201
Book of Abstract |
Table of Contents
Preface: The 6th Asian Physics Symposium (APS 2015)........................................................... iii
Organizers ................................................................................................................................ v
International Scientific Committee ........................................................................................... vi
APS 2015 Program ................................................................................................................. vii
INV-01 Invited Speaker ........................................................................................................... 1
Leong Chuan Kwek .............................................................................................................. 1
INV-02 Almighty Google knows everything! - Big-data and Network Science .......................... 2
Hawoong Jeong .................................................................................................................... 2
INV-03 Exploring Physical Research Based on Phenomena Around Us .................................... 3
Mikrajuddin Abdullah .......................................................................................................... 3
INV-04 A Plan of Indonesia National Astronomical Observatory .............................................. 4
Taufiq Hidayat ..................................................................................................................... 4
INV-05 Development of MPS Method for Analyzing Melt Spreading Behavior and MCCI in
Severe Accidents ...................................................................................................................... 5
Akifumi Yamaji, Xin Li........................................................................................................ 5
INV-06 First-principles simulations of interface reactions......................................................... 6
Yoshitada Morikawa............................................................................................................. 6
BIO-01 A Density Functional Theory Study of a Calcium-Montmorillonite: A First Investigation
for Medicine Application .......................................................................................................... 7
Triati Dewi Kencana Wungu, Widayani, Suprijadi ................................................................ 7
BIO-02 The Increasing of Air and Biogas Mixer Instrument for Generating Friendly
Environmental Electricity Power ............................................................................................... 8
Ni Ketut Lasmia), Alamta Singarimbun b), and Wahyu Srigutomoc) ......................................... 8
BIO-03 A Comparison between NaI Scintillator and Survey Meter in Low Activity and Low
Energy Radioisotopes Measurement .......................................................................................... 9
Mohammad Haekal*, Freddy Haryanto, Abdul Waris............................................................ 9
BIO-04 The Study of Post-Harvest Ambon Banana (Musa Acuminata) Preservation Using XRay......................................................................................................................................... 10
Pratiwi Dwijananti, Putut Marwoto, Retno Sri Iswari, Langlang Handayani ......................... 10
BIO-05 Study on Inhomogeneity Effect in Phantom using EGSnrc and Geant4 code system for
Varian Trilogy Clinac iX 10 MV Photon Beam ....................................................................... 11
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August 19-20, 2015
Sitti Yani1), Mohamad Fahdillah Rhani2), Freddy Haryanto1), Idam Arif1) ............................. 11
BIO-06 Single Energy Micro CT Skyscan 1173 for the Characterization of Urinary Stone ....... 12
Leni Aziyus Fitri a*), Vepy Asyana a), Taufiq Ridwan b), Farhan Anwary b), Hari Soekersi b),
Fourier D. E. Latief a), Freddy Haryanto a) ........................................................................... 12
BIO-07 Influence of Phantom Diameter on Dose Peak from Varian OBI CBCT v1.4 X-ray Tube
Using Monte Carlo Simulation ................................................................................................ 13
Muhammad Nasir, Defrianto Pratama, Choirul Anam, Freddy Haryanto .............................. 13
BIO-08 Simulation of 2D brain’s potential distribution based on two electrodes ECVT using
finite element method .............................................................................................................. 14
Syarif Hussein Sirait a*), Rizki Edmi Edison b), Marlin R. Baidillah b), Warsito P. Taruno b),
Freddy Haryanto a) .............................................................................................................. 14
BIO-09 Design and Testing Of Mini-Size Biogas Plant ........................................................... 15
Erwin Randjawali and Abdul Waris*................................................................................... 15
BIO-10 Free Energy Calculation of Melittin in Lipid Bilayer Using Molecular Dynamics
Simulation .............................................................................................................................. 16
Sri R. Natasia1), Acep Purqon2)............................................................................................ 16
BIO-11 Comparison Study of Quadratic program on Optimization Instensity Modulated
Radiation Therapy Treatment Planning (IMRTP) with CERR® In Case of Lung Cancer .......... 17
Yati Hardiyanti, Mohammad Haekal, Abdul Waris, Freddy Haryanto .................................. 17
BIO-12 Cylinder Pile Horizontal Vibration Experiment to Observe Rolling Friction on
Avalanches in Two Dimensional Granular System ................................................................... 18
Yopy Mardiansyah*, Yulia, Mairizwan, Suprijadi, dan Sparisoma Viridi ............................. 18
BIO-13 Analysis of Radiation Impact on White Mice through Radiation Dose Mapping in
Medical Physics Laboratory .................................................................................................... 19
Riza Aryawijayanti, Susilo dan Sutikno* ............................................................................. 19
COM-01 NUMERICAL APPROACH OF HAMILTON EQUATIONS ON DOUBLE
PENDULUM MOTION WITH AXIAL FORCING CONSTRAINT ........................................ 20
Intan Indiati 1,2,*; Joko Saefan 1,2; Putut Marwoto 1 ............................................................... 20
COM-02 Predicting Diameter of Electrospun Nanofiber by Superpositioning Exponential Series
............................................................................................................................................... 21
Putri Mustika Widartiningsih, Ferry Iskandar, Muhammad Miftahul Munir, Sparisoma Viridi
........................................................................................................................................... 21
COM-03 Budding Yeast Colony Growth Study Based on Circular Granular Cell..................... 22
Devi Aprianti R.A. a,*), S.N.Khotimah b), Sparisoma Viridi b) ............................................... 22
COM-04 First Principle Study of Proposed Model for Acetylcholinesterase Enzyme and
Substrate (Acetylcholine, Rivastigmine) Interaction ................................................................. 23
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Vera Khoirunisa a), Febdian Rusydi b*), Aditya G. Saputro a), Hermawan K. Dipojono a), and
Hideaki Kasai c) .................................................................................................................. 23
COM-05 Ab Initio Elastic Properties calculation of Gold (Au) ................................................ 24
Iwan Prasetiyo, Kemal Agusta ............................................................................................ 24
COM-06 First-principles Molecular Dynamics study on Helium Filled Carbon-Nanotube ....... 25
Mohammad Kemal Agusta 1), Iwan Prasetiyo 1), Adhitya Gandaryus Saputro 1), Ryo Maezono
, Hermawan K Dipojono 1) ................................................................................................ 25
2)
COM-07 Density Functional Study of Adsorptions of CO2, NO2 and SO2 molecules on
Zn(0002) surfaces. .................................................................................................................. 26
Nugraha, Adhitya Gandaryus Saputro 1), Mohammad Kemal Agusta 1), Brian Yuliarto 1),
Hermawan K. Dipojono 1), Ryo Maezono 2)......................................................................... 26
COM-08 DFT Study of Adsorption of CO2 on Palladium Cluster Doped by Transition Metal . 27
Adhitya Gandaryus Saputro 1), Mohammad Kemal Agusta 1), Triati Dewi Kencana Wungu 3),
Febdian Rusydi 4) , Suprijadi 2), Hermawan K. Dipojono 1) .................................................. 27
COM-09 Simulation of Oil-Water Flow Through a Porous Medium by a Three-Dimensional
SPH Method ........................................................................................................................... 28
Herlan Setiadi, Suprijadi ..................................................................................................... 28
COM-10 DFT Study of the Formate Formation on Ni(111) Surface Doped by Transition Metals
[Ni(111)-M; M=Cu, Pd, Pt, Rh] .............................................................................................. 29
Nugraha 1), Adhitya Gandaryus Saputro 1), Mohammad Kemal Agusta 1), Febdian Rusydi 2),
Ryo Maezono 3), Hermawan K Dipojono 1).......................................................................... 29
COM-12 Two Dimension Magnetotelluric Modelling Using Finite Element Methods,
Incomplete LU Preconditioner and Biconjugate Gradient Stabilized Techniques ...................... 30
Muhammad Zukir, Wahyu Srigutomo ................................................................................. 30
COM-13 The use of C++ Programming Language for geothermal reservoir modeling ............. 31
Suka Prayanta Pandia, Alamta Singarimbun ........................................................................ 31
COM-14 Comparison of Mathematical Equation and Neural Network Modelling for Drying
Kinetic of Mendong in Microwave .......................................................................................... 32
Rifaatul Maulidah, Acep Purqon ......................................................................................... 32
COM-15 Prediction of Dried Durian Moisture Content Using Artificial Neural Networks ....... 33
Marati Husna*, Acep Purqon .............................................................................................. 33
COM-16 Prediction of Soil Thermal Conductivity that Involve Plant Growth using Neural
Network.................................................................................................................................. 34
Afni Kumala Wardani1, Acep Purqon2 ................................................................................ 34
COM-17 Particle-based Simulation of Rayleigh-Taylor Instability .......................................... 35
Nur Asiah Aprianti*, Sparisoma Viridi, Zaki Su’ud, dan Koji Morita .................................. 35
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August 19-20, 2015
COM-18 Modelling and calculation of waveguide with optical amplification using Finite
Difference Time Domain method............................................................................................. 36
Rahmat Hidayat, Okky Fajar Tri Maryana ........................................................................... 36
EDU-01 PRELIMINARY DESIGN OF ICI BASED MULTIMEDIA FOR
RECONCEPTUALIZING ELECTRICITY CONCEPTION IN INDONESIA UNIVERSITY OF
EDUCATION ......................................................................................................................... 37
Achmad Samsudin, Andi Suhandi, Dadi Rusdiana, & Ida Kaniawati .................................... 37
EDU-03 Characteristics of Abductive Inquiry in Earth and Space Science: An Undergraduate
Teacher Prospective Case Study .............................................................................................. 38
Taufik Ramlan Ramalis 1), Liliasari 2), Dany Herdiwidjaya 3) ............................................... 38
EDU-04 Microscopis Virtual Media (MVM) in physics learning: a case study on students
understanding of heat transver ................................................................................................. 39
Firmanul Catur Wibowo1), Andi Suhandi 1), Yayat Ruhiyat 2)............................................... 39
EDU-05 An Analysis Of Mimosa Pudica’s Leaves Movement By Using Logger Pro Software 40
Sugito 1,2*; Susilo, Langlang Handayani 1), Putut Marwoto 1) ................................................ 40
EDU-06 Profile Of Students Interest Reading Physics Book On Study Program Physics
Education Through The Assignment Review On Advance Course ............................................ 41
Diah Mulhayatiah 1,a) Endah Kurnia Yuningsih 2,b) Nuansa Puji Ermaya 2,c) .......................... 41
EDU-07 Bringing Javanesse Traditional Dance into Basic Physics Class: Exemplifying
Projectile Motion through Video Analysis ............................................................................... 42
Langlang Handayani, Mahardika Prasetya Aji, Susilo, Putut Marwoto ................................. 42
EDU-09 DEVELOPMENT OF AN ICT-BASED AIR COLUMN RESONANCE LEARNING
MEDIA................................................................................................................................... 43
Eka Purjiyanta1,2, Langlang Handayani1, Putut Marwoto1..................................................... 43
EDU-10 Science Awareness and Science Literacy through the Basic Physics Course: Physics
with a bit of Metaphysics? ....................................................................................................... 44
Aloysius Rusli .................................................................................................................... 44
EDU-12 The Influence of Using Momentum and Impulse Computer Simulation to Senior High
School Students’ Concept Mastery .......................................................................................... 45
Ida Kaniawati *) , Achmad Samsudin, Yopi Hasopa ............................................................. 45
EDU-13 Implementation Literacy Strategies on Theme Based Learning: Health Technologies
and Transportation to Enhance Indonesian Junior High School Student’s Physics Literacy ....... 46
Selly Feranie, Ridwan Efendi, Saeful Karim, Dedi Sasmita.................................................. 46
EDU-17 Interactive Learning Media for Image Formation by Thin Lenses and Their
Applications Using Macro Visual Basic in Microsoft PowerPoint ............................................ 47
Sari Sami Novita*, Siti Nurul Khotimah, Wahyu Hidayat .................................................... 47
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EDU-18 SUSAN LOUCKS-HORSLEY LEARNING MODEL IN LIGHT POLLUTION
THEME: A NEW TAXONOMY FOR SCIENCE EDUCATION ............................................ 48
Winny Liliawati, Judhistira Aria Utama, Hayyah Fauziah.................................................... 48
EDU-19 The Application of Traditional Game Rorodaan as Learning Tool in Physics Subject:
Force and Movement to Improve Student Motivation and Learning Results ............................. 49
Okky Fajar Tri Maryana 1), Ratih Rizki Retinofa 2), ............................................................. 49
EDU-20 Combining Real And Virtual Experimentation To Enhance Students Conceptual
Understanding Of Electric Circiuits And Sciences Process Skill............................................... 50
Duden Saepuzaman *), Ida Kaniawati, Setiya Utari, Saeful Karim ........................................ 50
EDU-21 Reconstruction Learning’s of Motion Objects In One Dimension to Improve HigherOrder Thinking Skills and Concepts Construct Physics Students Teacher Physics Candidates... 51
Saeful Karim, Duden Saepuzaman *) ................................................................................... 51
EDU-22 Implementing a “Choose Your Own Adventure” Method in Teaching Basic Concepts
of Sound to Primary-School Teacher Candidate Students ......................................................... 52
Regina Lichteria Panjaitan .................................................................................................. 52
EDU-23 Why always alcohol and mercury thermometer,can we make it from cofee?: A
Scientific investigation learning design for seventh grade Indonesian Students ......................... 53
Dadi Rusdiana, Selly Feranie, Setya Utari, Duden Saepuzaman ........................................... 53
EDU-25 Development Of Learning Tools Based On Multi-Representation Fundamental Physics
............................................................................................................................................... 54
Choirul Huda*, Joko Siswanto, Affandi Faisal Kurniawan, Harto Nuroso ............................ 54
EDU-28 Development of Representational Conceptual Evaluation in First Law of
Thermodynamics .................................................................................................................... 55
Syakti P. Sriyansyah a*) and Andi Suhandi b)........................................................................ 55
EDU-29 The Moon Topography Model as an Astronomy Educational Kit for Visual Impaired
Student ................................................................................................................................... 56
Yudhiakto Pramudya, Fitri Nur Hikmah .............................................................................. 56
EDU-30 Realizing a Deflection-type DC Bridge-based Thermometer under Project-based
Learning Approach ................................................................................................................. 57
Ramadhiansyah, Thariq Warsahemas, Ahmad Idris Nurul Ulum, Elfi Yuliza, Khairurrijal ... 57
EDU-31 Implementing Project-based Learning in Making a Weight Meter ............................. 58
Wibias Muliawan, Wildan Syahrun Nahar, Chris Evan Sebastian, Elfi Yuliza, Khairurrijal .. 58
EDU-32 Theoretical Explanation of Rubber Band Heat Engine............................................... 59
Nurhidayah Muharayu, Widayani, Khairurrijal .................................................................... 59
EDU-33 Thermodynamical and Mechanical Analyses of a Thermomagnetic Rotary Engine .... 60
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August 19-20, 2015
Dinar Maftukh Fajar, Siti Nurul Khotimah, and Khairurrijal ................................................ 60
EDU-34 Improving Understanding of Deflection-Type Bridge Measurement Using ResearchBased Learning: Implementation in Soil Moisture Meter .......................................................... 61
Elfi Yuliza 1), Muhammad Sainal Abidin 2), Muhammad Miftahul Munir 2,a), Mikrajuddin
Abdullah 1,b) and Khairurrijal 1,c) .......................................................................................... 61
EPS-01 Complexity Analysis of Peat Soil Density Distribution ............................................... 62
Joko Sampurno1, Fourier Dzar Eljabbar Latief2, Wahyu Srigutomo2 .................................... 62
EPS-02 Temporal Characteristic of the Methane (CH4) Emission Observed in Bukit Kototabang,
West Sumatra during 2004 - 2013............................................................................................ 63
Deni Okta Lestari, Erni and Iskhaq Iskandar ........................................................................ 63
EPS-04 Spatio-temporal variations of sea surface temperature in the Banda Sea ...................... 64
Iskhaq Iskandar, Wijaya Mardiansyah, Dedi Setiabudidaya, Muhammad Irfan and Pradanto
Poerwono ........................................................................................................................... 64
EPS-05 Buckling and Earthquake Sources In The Subduction Zone ........................................ 65
Lilik Hendrajaya1,a) and Jaya Murjaya2) ............................................................................... 65
EPS-07 CYCLONE RAINFALL STRUCTURE AFFECTING INDOCHINA PENINSULA
AND ITS RELATION TO FLOOD EVENTS IN LOWER MEKONG RIVER BASIN (LMB) 66
Rattana CHHIN, Nurjanna Joko Trilaksono, Tri Wahyu Hadi .............................................. 66
EPS-08 Landslide Hazard and Risk Assessment For Ambon City Using Landslide Inventory and
Geographic Information System .............................................................................................. 67
Matheus Souisa, Lilik Hendrajaya, Gunawan Handayani ..................................................... 67
EPS-11 SIMULATION OF TWO PHASE FLUID FLOW WITH VARIOUS KINDS OF
BARRIERS USING LATTICE BOLTZMANN METHODE ................................................... 68
Imam Wijaya, Acep Purqon ................................................................................................ 68
EPS-12 Fluid Imbibition Effects on the P Waves Velocities and Amplitudes of Ngrayong
Sandstone................................................................................................................................ 69
Thaqibul Fikri Niyartama a*,c), Umar Fauzi a), Fatkhan b) ...................................................... 69
EPS-13 Analysis of Hubbert Model to Estimate the peak of oil production .............................. 70
Ria Dwi Izahyanti, Lilik Hendrajaya ................................................................................... 70
EPS-14 Decreasing groundwater quality at Cisadane riverbanks: groundwater-surface water
approach ................................................................................................................................. 71
Irawan, DE.1, Kuntoro, AA.2, Julian, MM.1, Puradimaja, DJ.1, and Yeni, D.3 ....................... 71
EPS-15 3D flow patterns at the river–aquifer interface - a case study at Cikapundung watershed
............................................................................................................................................... 72
Darul A., Irawan, DE., Pratama, A., and Prabowo, K. .......................................................... 72
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EPS-16 Two-dimensional Magnetotelluric Modeling using Vector Finite Element Method and
its Application to Sumatran Fault Zone.................................................................................... 73
E. Pramono S1, Nurhasan1, D. Sutarno1, Y. Ogawa2 and R. Prihantoro1................................ 73
EPS-18 1-D and 2-D Occams Inversion of Magnetotelluric Data Applied in VolcanoGeothermal Area in Central Java, Indonesia ............................................................................ 74
Elsi Ariani and Wahyu Srigutomo ....................................................................................... 74
EPS-19 CSAMT Data Processing with Source Effect and Static Corrections, Application of
Occam’s Inversion, and Its Application in Geothermal System ................................................ 75
Husnul Hamdi, Arga M. Qausar, and Wahyu Srigutomo ...................................................... 75
EPS-20 Surface Roughness Mapping to Estimate Surface Moisture using Radarsat-2 Quad
Polarimetric SAR Data ............................................................................................................ 76
Nurtyawan, R.1, Saepuloh, A.2, Budiharto, A.3, Wikantika, K.3 ............................................ 76
EPS-21 Inversion of The Bromo Volcano Surface Deformation in 2007 to Calculate Magma
Chumber Location and Its Volume Change To Predict Recent Magma Transport ..................... 77
Ratih Kumalasari, Wahyu Srigutomo .................................................................................. 77
EPS-22 Combined DC Resistivity Survey and Electric Conductivity-Dielectric Permittivity
Measurement at Sag Pond near Lembang Fault, West Java, Indonesia ...................................... 78
Mimin Iryanti1,3 , Wahyu Srigutomo2, Satria Bijaksana1 and Tedy Setiawan1 ....................... 78
EPS-23 MAGNETIC PROPERTIES OF SOILS FROM LANDSLIDE POTENTIAL AREA .. 79
Rifat Ramdhani, Dini Fitriani, Kartika Hajar Kirana, Bambang Wijatmoko, Ogi Sutanto ..... 79
EPS-24 STUDY OF POTENTIAL LANDSLIDE DISASTER AT KAIRO HILL –
INFRASTRUCTURE TOURISM IN TANA TORAJA ........................................................... 80
L. Pasasa, L. Hendrajaya, I. Permanasari, and D.Pandara ..................................................... 80
EPS-26 Seasonal and Semiannual Variability of Sea Surface Height in Makassar Strait........... 81
Ivonne M. Radjawane and Fuad Azminuddin ...................................................................... 81
EPS-28 Preliminary Identification of Upwelling System in Indonesian Seas ............................ 82
Ivonne M. Radjawane and Naomi Arum Gustaria ................................................................ 82
EPS-29 Biot Modeling of Fluid Saturation in Mesoscale ......................................................... 83
Thaqibul Fikri Niyartamaa*,c), Umar Fauzia), Fatkhanb)......................................................... 83
EPS-31 Performance Test of gPhone (#123, #126, and #127) during Preparation Stage of Gundih
Pilot Project for CCS Injection ................................................................................................ 84
Eko Januari Wahyudi1) , Yoichi Fukuda2), Jun Nishijima3) and Matomu Itakura2) ................. 84
EPS-32 Analysis on the Formation of Fractured Zone in Geothermal Reservoir Using MEQ
(Micro-Earthquake) Data on Kamojang Geothermal Field ....................................................... 85
Alamsyah Rizki Isroi a*), Alamta Singarimbun a), Tommy Herdiansyah b)............................. 85
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August 19-20, 2015
EPS-33 Resistivity Structure of Lembang Fault derived from Magnetotelluric Data (preliminary
result) ..................................................................................................................................... 86
Nurhasan1, D Sutarno1, E J Mustofa1, W Srigutomo1, D Fitriani2, Y Ogawa3 ........................ 86
EPS-34 Application of Outliers and Novelty Detection Methods to Identify Ionospheric TEC
Irregularities during Geomagnetic Storm and Substorm ........................................................... 87
Asis Pattisahusiwa, The Houw Liong, Acep Purqon ............................................................ 87
EPS-35 Climate and Landuse Change Impact to Groundwater Condition at Parepare City ....... 88
Karin Nadira Dauwani, Irwan Iskandar, Rusmawan Suwarman ............................................ 88
EPS-37 The crosshole sonic logging (CSL) measurement system to measure the quality of
physical model of bored pile .................................................................................................... 89
Denniswara Sibit, Gunawan Handayani ............................................................................... 89
EPS-38 Hydrogeological boundaries of strato volcanoes ......................................................... 90
Dasapta Erwin Irawan 1), Prihadi Sumintadireja1), Ahmad Darul2), Anggita Agustin1), Arif
Nurrochman3), and Deny Juanda Puradimaja1) ..................................................................... 90
EPS-39 Porosity Log Prediction Using Neural Network .......................................................... 91
Oki Dwi Saputro a) , Zulfikar Lazuardi Maulana b), Fourier D. E. Latief c) ............................ 91
EPS-40 STUDY INFULENCE OF PORE PRESSURE CONCERNING SLOPE STABILITY
ON ASAM-ASAM MINE LOCATION PT. ARUTMIN INDONESIA .................................... 92
H. Mayangsari, A. M. Ramdhan, I. Iskandar ........................................................................ 92
EPS-41 The Use of Direct Solver in Vector Finite Element Modeling for Calculating 3-D
Magnetotelluric Responses ...................................................................................................... 93
Rudy Prihantoro; Doddy Sutarno; Nurhasan ........................................................................ 93
EPS-42 Preliminary Study of 2D Fracture Upscaling of Geothermal Rock Using IFS Fractal
Model ..................................................................................................................................... 94
Prana F L Tobing1*, Selly Feranie1, Fourier D.E. Latief2 ...................................................... 94
EPS-43 The Dynamics of Eddies in the Southeastern Tropical Indian Ocean ........................... 95
Farrah Hanifah 1), Nining Sari Ningsih 1), Ibnu Sofian 2)....................................................... 95
EPS-44 Empirical Orthogonal Function Analysis of Sea Surface Temperature and Wind Stress in
the Banda Sea ......................................................................................................................... 96
Nining Sari Ningsih, Farrah Hanifah ................................................................................... 96
EPS-45 Analysis and Visualization of 2D and 3D Grain and Pore Size of Fontainebleau
Sandstone Using Digital Image Analysis ................................................................................. 97
Fourier Dzar Eljabbar Latief................................................................................................ 97
EPS-46 Clay analysis and Shear Parameter Calculation (c and ) of Cililin, West Java
Landslides............................................................................................................................... 98
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Ikah N. P Permanasari1,2 , Gunawan Handayani2 , Lilik Hendrajaya2.................................... 98
EPS-48 The Aplication of Fourier Prediction Model to Schedule Paddy Growing Season with
High Resolution for Upgrading Farm Capacity Building (Case Study in Indramayu Regency) .. 99
Plato Martuani Siregar ........................................................................................................ 99
EPS-49 Development of porosity measurement method in shale gas reservoir rock ............... 100
Alita Siswandani1, Bagus Endar B. Nurhandoko1,2.............................................................. 100
EPS-50 Shallow structure of Papandayan Volcano, Garut based on Resistivity Data.............. 101
Nurhasan and Nilam Sari ................................................................................................... 101
EPS-51 Investigation of Underground Hydrocarbon Leakage using Ground Penetrating Radar
............................................................................................................................................. 102
Wahyu Srigutomo1 and Trimadona1 and Eleonora Agustine2 .............................................. 102
EPS-52 2D Resistivity and Induced Polarization Measurements for Manganese in East Nusa
Tenggara, Indonesia .............................................................................................................. 103
Wahyu Srigutomo, Trimadona and Prihandhanu P. Mukti .................................................. 103
IDP-01 Characterization of Mode of Pseudo-Two Dimension Granular Material Motion In
Vertical Rotation Drum ......................................................................................................... 104
Yulia*, Yopy Mardiansyah, Siti Nurul Khotimah, Suprijadi, Sparisoma Viridi ................... 104
IDP-02 A Development of Force Plate for Biomechanics Analysis of Standing and Walking . 105
Sony Wardoyoa*), Pahala Tua Hutajulub), and Octolia Togibasaa) ........................................ 105
IDP-03 EXPERIMENTAL STUDY OF GRANULAR CONVECTION ON PSEUDO TWODIMENSION AND TWO-DIMENSION BRAZIL-NUT EFFECT ........................................ 106
Hari Anggit Cahyo Wibowo, Trise Nurul Ain, Yayan Prima Nugraha, Dimas Praja Purwa Aji,
Siti Nurul Khotimah, Sparisoma Viridi .............................................................................. 106
IDP-07 Stochastic Response of Nonlinear Structures ............................................................ 107
Anwar Dolu 1), Amrinsyah Nasution 2) ............................................................................... 107
IDP-08 Group Identification in Indonesian Stock Market ...................................................... 108
Ervano Nurriyadi a), Sung Kyun Jo b), Kyuseong Lim b), Acep Purqon a), Soo Yong Kim b).. 108
IDP-10 Feynman Path Integral Application on Deriving Black-Scholes Diffusion Equation for
European Option Pricing ....................................................................................................... 109
Briandhika Utama, Acep Purqon ........................................................................................ 109
INS-01 Designing Light Beam Transmittance Measuring Tool Using A Laser Pointer .......... 110
Harto Nuroso 1,2 *; Wawan Kurniawan 2 ; Putut Marwoto 1 ................................................. 110
INS-02 Simulation and Analysis of Amplitude and Interference LVDT’s (Linear Variable
Differential Transformer) Secondary Coils Sinusoid Signal Based IC AD598 ........................ 111
Kiswanto a*), Hendro b), Sparisoma Viridi c) ........................................................................ 111
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August 19-20, 2015
INS-03 Design of Monitoring System for Volcano Mitigation Based on Deformation ............ 112
Mohammad Ruqy Faishal Islamy 1), Rahmat Awaludin Salam 1), Muhammad Miftahul Munir
, Masyhur Irsyam 3,4) and Khairurrijal 2,4,b).................................................................... 112
1,4,a)
INS-04 DESIGN OF EDIBLE OIL DEGRADATION TOOL BY USING
ELECTROMAGNETIC FIELD ABSORBTION PRINCIPLE WHICH WAS
CHARACTERIZED TO PEROXIDE NUMBER ................................................................... 113
Maizal Isnen, Tulus Ikhsan Nasution, Bisman Perangin-angin ........................................... 113
INS-06 ACOUSTIC MEASUREMENT AND KIRCHOFF-RAY MODE (KRM) MODEL
COMPUTATION FOR FISH BACKSCATTER .................................................................... 114
Henry M. Manik ............................................................................................................... 114
INS-08 Low Cost Concentric Cylinders Viscometer based Microcontroller ........................... 115
Casmika Saputra 1), Fandi Walio 1), Muhammad Miftahul Munir 1,3,a), and Khairurrijal 2,3,b) 115
INS-09 Design and Implementation of Automatic Air Flow Rate Control System .................. 116
Ali Akbar, Casmika Saputra, Muhammad Miftahul Munir, and Khairurrijal ....................... 116
INS-10 A Simple Accelerometer Calibrator .......................................................................... 117
Rahmat Awaludin Salam1, Mohammad Ruqy Faishal Islamy1, Muhammad Miftahul Munir 1,5,
Hamzah Latief 3,5, Masyhur Irsyam 4,5, Khairurrijal 2,5 ....................................................... 117
INS-11 Study of Soil Moisture Sensor for Landslide Early Warning System: Experiment Scale
............................................................................................................................................. 118
INS-12 Instrumentation System Design and Simulation Landslide Disaster Mitigation in Lab
Scale ..................................................................................................................................... 119
Husni Habil, Elfi Yuliza, Rahmat Awaludin Salam, Mohammad Ruqy Faishal Islamy,
Muhammad Miftahul Munir, Masyhur Irsyam, and Khairurrijal ......................................... 119
MAT-01 Optimized Morphology Properties of Silver Catalyst Substrate for Twisted Carbon
Nanoribbon Growth by Pecvd Method ................................................................................... 120
Ahmad Rosikhin, Ibnu Syuhada, Aulia Fikri Hidayat and Toto Winata .............................. 120
MAT-02 Synthesis of Magnetized Photocatalyst Fe3O4/SiO2/TiO2 by Heteroagglomeration
Method ................................................................................................................................. 121
Sari Hasnah Dewi1,2, Sutanto1 dan Adel Fisli2 .................................................................... 121
MAT-03 Optimization of the Composite Repair Work using 8-Harness Satin Dry Glass Fabric
and Epoxy Resin LY5052/HY5052 Materials through the Vacuum Bagging Technique.......... 122
MAT-06 Structure Evolution of Fe-50%Al Coating Prepared by Mechanical Alloying .......... 123
Didik Aryanto and Toto Sudiro* ....................................................................................... 123
MAT-07 Effect of surface roughness on contact angle measurement of nanofluid on metal
surface of SS 304 by sessile drop ........................................................................................... 124
Djoko Hadi Prajitno, Alan Maulana and Dani Gustaman Syarif ......................................... 124
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MAT-08 The Effect of Sintering Atmosphere on Electrical Characteristics of Fe2TiO5 Pellet
Ceramics Sintered at 1200oC for NTC Thermistor ................................................................. 125
Wiendartun1,a) and Risdiana2,b), Fitrilawati3,b), R.E.Siregar4,b) .............................................. 125
MAT-09 Electric Double-Layer Capacitors with Tea Waste Derived Activated Carbon
Electrodes and Plastic Crystal based Flexible Gel Polymer Electrolytes ................................. 126
M. Suleman a), M. Deraman a*), M. A. R. Othman a), R. Omar a), M. A. Hashim b), N. H. Basri
, N. S. M. Nor a), B. N. M. Dolah a), M. F. Y. M. Hanappi a), E. Hamdan a), and N. S. Sazali a)
......................................................................................................................................... 126
a)
MAT-10 Graphene/Semicrystalline Carbon Derived from Amylose Films for Supercapacitor
Application ........................................................................................................................... 128
M. Deraman*), M. Suleman, N. S. Sazali, M. F. Y. M. Hanappi, N. H. Basri, B. Yatim, C. C.
Yap, R. Awang, N.S. M. Nor, M.A.R. Othman, R. Omar, M.R.M. Jasni ............................. 128
MAT-11 Characterization of Nephelium Lappaceum Skin Extract as a Dye Sensitized Solar Cell
............................................................................................................................................. 129
Joko Budi Poernomo 1,2*; Rahmat Hidayat 5; Ana Hidayati Mukaromah 4; Hendri Widiyandari
3
; Putut Marwoto 1 ............................................................................................................. 129
MAT-12 Observation on Potential Energy Change and Contactopy Change in 2-D Compaction
Inhibited Brazilian Nut Effect ............................................................................................... 130
Trise Nurul Ain a*), Hari Anggit Cahyo Wibowo a), Yayan Prima Nugraha b), Siti Nurul
Khotimah c), Sparisoma Viridi c)......................................................................................... 130
MAT-14 Papaya Seed as A Low-Cost Sorbent for Removing Cr(VI) from The Aqueous
Solutions............................................................................................................................... 131
Atik Rahmawati1,2, Putut Marwoto1, Anita Karunia Zustriani2 ............................................ 131
MAT-15 Resistance Switching Mechanism Correlated to Topotactic Phase Transformation .. 132
Octolia Togibasa 1*) and Chang Uk Jung 2) ......................................................................... 132
MAT-16 Performance Of Polyaniline/Zn Rechargeable Battery With Buffer Control: A Study Of
The Effect Various Electrolyte Acidity .................................................................................. 133
Said Ali Akbar 1,*, Achmad Rochliadi2,a), Veinardi Suendo2,b) .............................................. 133
MAT-18 Synthesis of LiFePO4/Li2SiO3/reduced graphene oxide (rGO) Composite via
Hydrothermal Method ........................................................................................................... 134
Muhammad Arifin a), Akfiny Hasdi Aimona a), Muhammad Miftahul Munir b), and Ferry
Iskandar a,c*)....................................................................................................................... 134
MAT-20 Preparation and characterization of 7- 8 mole% YSZ and 12 mole% CSZ for electrolyte
SOFC ................................................................................................................................... 135
B. Budiana, F. Fitriana, N. Ayu, S. Suasmoro..................................................................... 135
MAT-21 Preliminary Study of Synthesis and Characterization of Nanomaterial from Ipomoea
Aquatica Forsk...................................................................................................................... 136
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August 19-20, 2015
Altje Latununuwe 1), Monalizza. H. Latununuwe 2), Estevanus. K. Huliselan 2), Toto Winata 3)
......................................................................................................................................... 136
MAT-22 Design, Synthesis, and Characterization of Molecularly Imprinted Polymer (MIP) with
D-glucose as Template .......................................................................................................... 137
Yanti1, Tati Nurhayati1, Idha Royani1,3, Widayani2, and Khairurrijal1,a) .............................. 137
MAT-23 Synthesis and Study of Guest-Rebinding of MIP Based On MAA Prepared using
Theophylline As Template .................................................................................................... 138
Tati Nurhayati 1), Yanti 1), Idha Royani 1), Widayani 2) and Khairurrijal 1) ........................... 138
MAT-24 Electrical Properties of (K0.4Na0.4Ba0.16M0.04)(Nb0.8Ti0.2)O3 with (M=Ca,Sr)
System Using Impedance Analyzer........................................................................................ 139
E. Desmelinda, S. Suasmoro* and A. M. Maghfiroh .......................................................... 139
MAT-25 Investigation on the influences of nano-porousity in DSSC type of solar cells ......... 140
Trisa Apriani, Waode Sukmawaty Arsyad, Priastuti Wulandari, Rahmat Hidayat ............... 140
MAT-26 Analysis Microstructure, physical properties and Magnetic Fluks Density of Permanent
Magnet BaFe12O19 Prepared by Milling and Sintering.......................................................... 141
Priyo Sardjono, Suprapedi, Muljadi, Nenen Rusnaeni Djauhari .......................................... 141
MAT-29 TiC and α-Ti coating on graphite prepared by Powder Immersion Reaction Assisted
Coating (PIRAC) .................................................................................................................. 142
Farah Aulia Rahma Wati, Dian Agustinawati, Nur Muhaimin, Suasmoro ........................... 142
MAT-30 Influence of air atmosphere on electrolyte stability and solid electrolyte interface
formation in lithium ion battery studied by infrared spectroscopy ........................................... 143
Herlin Tarigan, Atut Reni Septiana, Rahmat Hidayat ......................................................... 143
MAT-32 Electronic and Optical Properties of CuO Based on DFT+U and GW Approximation
............................................................................................................................................. 144
Faozan Ahmad, M Kemal Agusta and Hermawan K Dipojono ........................................... 144
MAT-33 Charge Transfer Dynamics of a Highly Efficient Cyanidin-3-O-Glucoside Sensitizer
for Dye-Sensitized Solar Cells ............................................................................................... 145
Eka Cahya Prima1,2,3, Brian Yuliarto1,a), Suyatman1, Hermawan Kresno Dipojono2............. 145
MAT-36 Preparation and characterization of functional material based on hybrid polymer
composites ............................................................................................................................ 146
La Agusu1), Amiruddin2), Chen Chen Taswito2), Herdianto2), and M. Zamrun F.1)............... 146
MAT-37 Effect of Microwave on Sintered Silica Xerogel Produced from Rice Husk Ash ...... 147
I Nyoman Sudiana a*), , Seitaro Mitsudo b), Prima Endang Susilowati c), Lina Lestari a),
Muhammad Zamrun F a), Haji Aripin d) ............................................................................. 147
MAT-38 Cr-Al Coatings on Low Carbon Steel Prepared by a Mechanical Alloying Technique
............................................................................................................................................. 148
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April Imelda Juita Hia1), Toto Sudiro2,*), Didik Aryanto2) and Krista Sebayang1) ................. 148
MAT-39 Insitu Preparation of Copper Iodide (CuI) Thin Film by Spraying Techniques for Hole
Transport Material (HTM) .................................................................................................... 149
Gina H. Rahmi a), Putri Pratiwi a), Bebeh W. Nuryadin b), Akfiny Hasdi Aimon a), Toto Winata
, and Ferry Iskandar a,c*) ................................................................................................... 149
a)
MAT-40 Preliminary Study on Synthesis of Organolead Halide with Lead Derived from Solder
Wire ..................................................................................................................................... 150
Putri Pratiwi a), Gina H. Rahmi a), Bebeh W. Nuryadin b), Akfiny Hasdi Aimon a), Mikrajuddin
Abdullah a), and Ferry Iskandar a,c *) ................................................................................... 150
MAT-42 The Role of Chemical Additives to PCM CaCl2.6H2O to the Phase Change Process to
Optimize Its Performance as Latent Heat Energy Storage System .......................................... 151
I.M.Sutjahja, Sri Rahayu A. U, Nia Kurniati, D. Kurnia ..................................................... 151
MAT-43 The Effectiveness of Organic PCM Based on Lauric Acid from Coconut Oil and
Inorganic PCM Based on Salt Hydrate CaCl2.6H2O as Latent Heat Energy Storage System in
Indonesia .............................................................................................................................. 152
Sri Rahayu A. U*), I.M. Sutjahja, D. Kurnia ....................................................................... 152
MAT-45 Effect of Pre-Strain on Mechanical Properties and Deformation Induced
Transformation of 304 Stainless Steel.................................................................................... 153
Fahri R. Zulfi, Akhmad A. Korda....................................................................................... 153
MAT-46 Effect of Cr2O3 Sealing Time on Anodized Al 2024-T3 ........................................ 154
Rahmat Z. Hidayat a), Akhmad A. Korda b)......................................................................... 154
MAT-47 A Density Functional Theory Study of Rare Earth Ions Impurity in Gallium Nitride 155
Dinan Andiwijayakusuma[1], Mineo Saito[2], and Acep Purqon[1]......................................... 155
MAT-48 Preliminary Study of Heat Supply during Synthesized Carbon Nanodots Material... 156
MAT-49 The Influences of Calcia Silica Contents to the Compressive Strength of the Al-7000
Aluminium Foam .................................................................................................................. 157
Sutarno1,a), Syoni Soepriyanto1,b), Akhmad A. Korda1,c), Tatacipta Dirgantara 2,d) ................ 157
MAT-51 Thin Film Preparation of Carbon Nanodots Composites as Green Photoluminescence
Material ................................................................................................................................ 158
MAT-52 THE ESTIMATION OF THE MINIMIZER OF THE THOMAS-FERMI-DIRACVON WEIZSAECKER FUNCTIONAL OF NaCl CRYSTAL LATTICE .............................. 159
MAT-53 Generation of Submicron Bubbles using Venturi Tube Method .............................. 160
I Gede Putu Agastya Eka Wiraputra 1), Dhewa Edikresnha 2), Muhammad Miftahul Munir 1,2),
and Khairurrijal 2,3) ............................................................................................................ 160
MAT-54 Analytical Model for Gate Tunneling Current in Undoped Cylindrical Gate-All-Around
Nanowire MOSFET .............................................................................................................. 161
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August 19-20, 2015
Christoforus Bimo, Fatimah Arofiati Noor, Khairurrijal ..................................................... 161
MAT-55 A Compact Quantum Correction Model for Undoped Cylindrical Gate-all-around
Nanowire MOSFET .............................................................................................................. 162
Christoforus Bimo, Fatimah Arofiati Noor, Khairurrijal ..................................................... 162
MAT-56 Master Equation Approach on Modeling and Simulation of Single Electron Transistor
............................................................................................................................................. 163
Frans Willy, Yudi Darma* ................................................................................................ 163
MAT-57 Visible Surface Plasmon on Pt Thin Film as Detected by Spectroscopy Ellipsometry
............................................................................................................................................. 164
Christoforus Dimas Satrya a*) and Yudi Darma a**) ............................................................. 164
MAT-58 Thermophysical Parameters of Coconut Oil and Its Potential Application as the
Thermal Energy Storage System in Indonesia ........................................................................ 165
Widya A. Putri, I. M. Sutjahja, D. Kurnia, S. Wonorahardjo .............................................. 165
MAT-59 Synthesis of Nanorods Titanium Dioxide via Anodisc Alumina Membrane Template
and their Applications in Dye-Sensitized Solar Cells .............................................................. 166
Risa Suryana, Sehati, Kusumandari ................................................................................... 166
MAT-60 Molecular doping effect on the electronic properties of two-dimensional materials.. 167
Arramel, Zheng Yujie, Wang Qixing, Andrew Thye Shen Wee.......................................... 167
NUC-01 Probabilistic Assessment of External Dose in Muria Peninsula using TMI-2 Source
Term ..................................................................................................................................... 168
Sunarko, Zaki Suud, Idam Arif.......................................................................................... 168
NUC-02 Lagrangian Particle Method for Local Scale Dispersion Modeling........................... 169
Sunarko, Zaki Suud........................................................................................................... 169
NUC-04 Investigation of Nuclear Ground State Properties of Fuel Materials of Th-232 and U238 Using Skyrme-Extended-Thomas-Fermi Approach Method ............................................. 170
Yacobus Yulianto, Zaki Suud ............................................................................................ 170
NUC-05 Conceptual Core Analysis of Long Life PWR Utilizing Thorium-Uranium Fuel Cycle
............................................................................................................................................. 171
Rouf a) and Zaki Su’ud b) ................................................................................................... 171
NUC-06 Breeding Blanket Design Optimization in HCLL Blanket using MCNP Program ..... 172
Indah Rosidah and Zaki Suud ............................................................................................ 172
NUC-07 Fuel Fraction Analysis of 350 MWth Gas Cooled Fast Reactor with Nitride (UN-PuN)
Fuel and Modified CANDLE Burn-Up Scheme ..................................................................... 173
Ratna Dewi Syarifah a*), Zaki Suud a**), Khairul Basar a), H. Sekimoto b) ............................ 173
NUC-08 Study Of 16O+92Zr,Sm144 Fusion Reactions With Coupled-Channel Method........ 174
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Muhammad Zamrun Firihu a*), Viska Inda Variani a), Hasan Abu Kassim b) ........................ 174
NUC-09 Thermohydraulic Analysis of Natural Circulation based Pb-Bi Cooled Advanced
Generation Nuclear Power Plant ............................................................................................ 175
Novitrian; Zaki Su’ud; Abdul Waris; Sparisoma Viridi....................................................... 175
NUC-10 Two-Dimension Granular Fission Toy Model and Evolution of Granular Compaction
............................................................................................................................................. 176
Sparisoma Viridi*, Rizal Kurniadi, Abdul Waris ................................................................ 176
NUC-11 Melting penetration simulation of Fe-U system at high temperature using MPS_LER
............................................................................................................................................. 177
Asril Pramutadi Andi Mustari a), Akifumi Yamaji b), Dwi Irwanto a) ................................... 177
NUC-12 LiF4-ThF4-PuF4 Utilization as Fuel Salt of miniFUJI Molten Salt Reactor ............. 178
Abdul Waris*, Indarta Kuncoro Aji, Syeilendra Pramuditya, and Dwi Irwanto ................... 178
NUC-13 Plutonium Utilization in FUJI-U1 Molten Salt Reactor ........................................... 179
Cici Wulandari, Indarta Kuncoro Aji, Syeilendra Pramuditya, Sidik Permana, and Abdul
Waris*............................................................................................................................... 179
NUC-14 MOX Fuel Utilization in NuScale Small Modular Pressurized Water Reactor ......... 180
Chyntia Nurapriliyani, Abdul Waris*, Asril P, Nur Asiah, and Zaki Su’ud ......................... 180
NUC-15 Analytical Study of Sr-90-Fueled Betavoltaic Battery Based on p-n Junction Silicon181
Swastya Rahastamaa), Khairul Basar, Widayani, Novitrian, and Abdul Warisb) ................... 181
NUC-16 Actinide Production of Spent Nuclear Fuel Light Water Reactor (LWR) For Different
Level of Burnup and Cooling Time Process ........................................................................... 182
Sidik Permana1,a, Abdul Waris1, Ismail2 , Mitsutoshi Suzuki3 and Masaki Saito4 ................. 182
NUC-17 Analysis on Plutonium Production In Fast Breeder Reactor (FBR) Cycle Based on
Transuranium Fuel Loading .................................................................................................. 184
NUC-18 Reactivity and actinide production analysis for different burn-up step and cycle process
of large FBR ......................................................................................................................... 186
THE-01 An Alternative to Bogomolnyi Method ................................................................... 187
Handhika Satrio Ramadhan................................................................................................ 187
THE-02 Investigation of Kaon Photoproduction in Six Isospin Channels Near Threshold ...... 188
T. Mart .............................................................................................................................. 188
THE-03 Light from Dark Sector at the LHC ......................................................................... 189
Reinard Primulando ........................................................................................................... 189
THE-04 Global Spacetime Topology outside Global k-monopole ......................................... 190
Ilham Prasetyo and Handhika S. Ramadhan ....................................................................... 190
THE-05 Asymptotically AdS Solutions of Five Dimensional Gravity-Dilaton Theory ........... 191
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August 19-20, 2015
Ardian Nata Atmaja, Hasan Abu Kassim, Norhasliza Yusof .............................................. 191
THE-06 Dirac Particles Emission from Reissner-Nordström-Vaidya Black Hole ................... 192
Yuant Tiandho, Triyanta* ................................................................................................. 192
THE-07 Supersymmetric Approach to the Solution of q-deformed Trigonometric Poschl-Teller
potential in D dimensions and its Thermodynamics Properties’ Application ........................... 193
A Suparmi, C Cari, Resita Arum Sari, Lina Kurniasih, Beta Nur Pratiwi ............................ 193
THE-08 Analytical Solution of Dirac equation for q-deformed Hyperbolic Manning-Rosen
potential in D dimensions Using SUSY QM and its Thermodynamics Properties’ Application 194
C Cari, A Suparmi, Muchtar Yunianto, Khaled I K Alemgadmi, U A Deta ......................... 194
THE-09 Analytical Solution OF The Dirac Equation for Pseudospin Symmetry With Modified
Poschl-Teller Potential and Trigonometric Scarf Ii Non-Central Potential using Asymptotic
Iteration Method.................................................................................................................... 195
Beta Nur Pratiwi, A. Suparmi, and C. Cari ........................................................................ 195
THE-10 Superconducting Dirac Born Infeld Strings.............................................................. 196
Ika Ikrima, Handhika S. Ramadhan, Terry Mart ................................................................ 196
THE-11 The Effect of Spin 3/2 Nucleon Resonances in Kaon Photoproduction ..................... 197
THE-12 Effects of the Consistent Interaction on Kaon Photoproduction with Spin 5/2 Nucleon
Resonances ........................................................................................................................... 198
Samson Clymton............................................................................................................... 198
THE-13................................................................................................................................. 199
Higher Dimensional Maximally Symmetric Stationary Manifold with Pure Gauge Condition and
Codimension One Flat Submanifold ...................................................................................... 199
Abednego Wiliardy a*), Bobby Eka Gunara a,b) ................................................................... 199
THE-14 Wave Function Modification to Accelarate Adiabatic Dynamics in Quantum Mechanics
............................................................................................................................................. 200
Iwan Setiawan a*), Bobby Eka Gunara b), Katsuhiro Nakamura c) ....................................... 200
THE-15 Spherically Symmetric Gravity with Nonminimal Derivative Coupling .................... 201
Ainol Yaqin* and Bobby E. Gunara .................................................................................. 201
THE-16 Magnetised-Kerr/CFT Correspondence ................................................................... 202
Haryanto M. Siahaan ........................................................................................................ 202
THE-17 Modified Hawking Mass and Geroch Monotonicity on 2-Surfaces ........................... 203
Flinn C. Radjabaycolle a,b), Fiki T. Akbar a), Jusak Kosasih a), Bobby E. Gunaraa) ................ 203
THE-18 Matching the Nagy-Soper parton shower at next-to-leading order ............................ 204
M. Czakon, H. B. Hartanto, M. Kraus, M. Worek .............................................................. 204
THE-19................................................................................................................................. 205
xxvi
Book of Abstract |
Localization of Interacting Fields in a Five-Dimensional Brane Model................................... 205
Dewi Wulandari a,b*), Triyanta b), Jusak S. Kosasih b), Douglas Singleton c) ......................... 205
THE-21 ................................................................................................................................ 206
Energy Conditions for Five Dimensional Cosmological Model with Nonminimal Derivative
Coupling............................................................................................................................... 206
Getbogi Hikmawan 1), Agus Suroso 1,2), Freddy P. Zen 1,2) .................................................. 206
THE-23 Stability of Fake Flat Domain Walls on Kahler Manifold ........................................ 207
Fiki T. Akbar a*), Rio N. Wijaya a), Bobby E. Gunara a,b) ..................................................... 207
THE-24 Characteristics of Symmetric Nuclear Matter at ZeroTemperature ........................... 208
Annisa Fitri, Anto Sulaksono ............................................................................................. 208
THE-25 Boson Stars in Flat Space with Repulsive Self-Interaction of Meson Vectors ........... 209
M. Fitrah Alfian R. S.* and Anto Sulaksono....................................................................... 209
THE-26 Feynman amplitude for Dirac and Majorana neutrinos ............................................. 210
Asan Damanik ................................................................................................................... 210
THE-27 ................................................................................................................................ 211
Dynamics of Massive Interacting Scalar Fields in Bekenstein-Sandvik-Barrow-Magueijo Theory
............................................................................................................................................. 211
Azrul S. K. Pohan 1,2, Husin Alatas 1,3, Bobby E. Gunara 1,4 ................................................ 211
THE-28 Curvature Perturbation for Slow Roll Potensial Model by ADM Formalism............. 212
Getbogi Hikmawan 1), Agus Suroso 2) and Freddy P. Zen 2) ................................................ 212
THE-29 Traveling Breathers of Peyrard-Bishop Model in DNA Molecules ........................... 213
Wahyu Hidayat, Sparisoma Viridi, Albertus Sulaiman, Freddy P. Zen ................................ 213
THE-30 Evolution of the Equation of State of the Scalar Field in Four Dimensional Cosmology
with Nonminimal Derivative Coupling Model ....................................................................... 214
Agus Suroso, Freddy P. Zen, Wahyu Hidayat, Getbogi Hikmawan ..................................... 214
THE-31 On Self-Dual Toric Four-Manifold.......................................................................... 215
Rio N. Wijaya 1), Fiki T. Akbar 1), Bobby E. Gunara 1,2)...................................................... 215
THE-32 Nonlinear model of the specificity of DNA-protein interactions............................... 216
Donny Dwiputra, Wahyu Hidayat, Rizki Khairani, Freddy Permana Zen ............................ 216
THE-33 ................................................................................................................................ 217
Parameter variation analysis of Peyrard-Bishop Model of DNA with Cubic and Quintic CGLE
............................................................................................................................................. 217
Hanley Andrean, Wahyu Hidayat, Freddy Permana Zen ..................................................... 217
xxvii
Book of Abstract |
INV-01
Invited Speaker
Leong Chuan Kwek
NIE Singapore
Abstract
Keywords: Topic: Theoretical High Energy Physics
1
August 19-20, 2015
INV-02
Almighty Google knows everything! - Big-data and Network Science
Hawoong Jeong
KAIST
Abstract
Network science is an interdisciplinary academic field which studies complex networks
such as engineered networks, information networks, biological networks, and social
networks etc. This field has received a major boost caused by the availability of huge
network data resources on the Internet. The field draws on theories and methods
including graph theory from mathematics, statistical mechanics from physics, data
mining and information visualization from computer science, and social structure
analysis from sociology to understand the complex systems, the problem to be solved in
21st century. Another research field gaining huge attention nowadays is about big-data.
Big-data is defined as “high-volume, high-velocity, and/or high-variety information
assets that require new forms of processing to enable enhanced decision making, insight
discovery and process optimization.” by Gartner, Inc. This field of research has huge
potential for practical applications but it also promises new discovery in science.
However, these big-data should be combined and analyzed together to be useful, and in
this respect, network science will shed a light on analyzing these big-data in more
combined way. In this presentation, I will briefly review what we can do by combining
big-data, especially using Google and network science together to study various
complex systems such as social network between people, prediction of science and
technology trends etc.
Keywords: Topic: Materials Sciences and Technology
2
Book of Abstract |
INV-03
Exploring Physical Research Based on Phenomena Around Us
Mikrajuddin Abdullah
ITB
Abstract
-
3
August 19-20, 2015
INV-04
A Plan of Indonesia National Astronomical Observatory
Taufiq Hidayat
Bosscha Observatory and Astronomy Research Division, FMIPA, ITB
E-mail: taufiq@as.itb.ac.id
Abstract
A new astronomical observatory in Indonesia is recently proposed to advance
astronomical research and science education. The proposed observatory is a multiwavelength one, working in optical and radio wavelengths, and is planned to be
organized in national level. Site selection has been thoroughly studied since 2007 and
pointed to Mount Timau (123° 56′ 42″ E, 9° 35′ 42″ S) at the altitude of 1300 m in West
Timor, in the Province of East Nusa Tenggara. A number of site testing, therefore, has
been focused in this region. For optical site testing, we performed seeing, extinction,
and sky brightness measurements, while for radio site testing, we measured the RFI
environment of the sites. Geological survey is also conducted to investigate the
feasibility of the regions to host a large observatory. In addition, science education and
public outreach have been introduced as part of social and anthropological survey to
promote awareness among people to preserve the dark sky for the future. The selected
site is a conservation area, surrounded by protected forest. The site is relatively a very
remote area with lack of infrastructures, such as adequate road and power plant. Density
of the population is low. Most people live in traditional house and cattling is the primary
source of revenue. Accordingly, site plan design of the new observatory must consider,
not only the science goal of the observatory, but also all these environmental and
cultural aspects carefully. In this talk, we also present a preliminary site plan of the
national observatory as a baseline model. The observatory will host 3m class reflector
telescope as well as several smaller telescopes for specific programs distributed in the
site. Radio telescopes, consisted of a large parabolic antenna as well as a dipole array,
are also planned. Supporting facilities, such as dormitory and data center, are also
indicated. The realization of this proposed observatory is currently undertaken by
LAPAN in cooperation with ITB and University of Nusa Cendana in Kupang.
Participation of many universities and research centers in Indonesia is extremely
encouraged.
Keywords:
-
Topic: Earth and Planetary Sciences
4
Book of Abstract |
INV-05
Development of MPS Method for Analyzing Melt Spreading Behavior and
MCCI in Severe Accidents
Akifumi Yamaji, Xin Li
Cooperative Major in Nuclear Energy,
Graduate School of Advanced Science and Engineering,
Waseda University
Abstract
Spreading of molten core (corium) on reactor containment vessel floor and molten
corium-concrete interaction (MCCI) are important phenomena in late phase of a severe
accident for assessment of the containment integrity and managing the severe accident.
The severe accident research at Waseda University has been advancing to show that
simulations with moving particle semi-implicit (MPS) method (one of the particle
methods) can greatly improve the analytical capability and mechanical understanding of
the melt behavior in severe accidents. MPS models have been developed and verified
regarding calculations of radiation and thermal field, solid-liquid phase transition,
buoyancy, and temperature dependency of viscosity to simulate phenomena, such as
spreading of corium, ablation of concrete by the corium, crust formation and cooling of
the corium by top flooding. Validations have been conducted against experiments such
as FARO L26S, ECOKATS-V1, Theofanous, and SPREAD for spreading, SURC-2,
SURC-4, SWISS-1, and SWISS-2 for MCCI. These validations cover melt spreading
behaviors and MCCI by mixture of molten oxides (including prototypic UO2-ZrO2),
metals, and water. Generally, the analytical results show good agreement with the
experiment with respect to the leading edge of spreading melt and ablation front history
of concrete. The MPS results indicate that crust formation may play important roles in
melt spreading and MCCI. There is a need to develop a code for two dimensional MCCI
experiment simulation with MPS method as future study, which will be able to
simulating anisotropic ablation of concrete.
Keywords: severe accident, spreading, MCCI, MPS method, FARO, ECOKATS,
Theofanous, SPREAD, SURC, SWISS
Topic: Nuclear Science and Engineering
5
August 19-20, 2015
INV-06
First-principles simulations of interface reactions
Yoshitada Morikawa
Osaka University
Abstract
I will discuss recent progress in first-principles simulations of chemical reactions at
solid surfaces and interfaces. First, I will discuss adsorption and dissociation of CO2 on
Cu surfaces [1]. Hydrogenation of CO2 by heterogeneous catalyst is very important in
energy and environmental field and Cu is used to activate CO2 in industry.
As the second topic, I will discuss the enhancement of etching reaction of SiC by Pt
catalyst[2]. SiC is hard and inert material and it is very difficult to make atomically flat
surfaces. Recently, Osaka University group found significant enhancement of etching
reactions by Pt catalyst. We will discuss the roles of Pt catalysts in the etching
processes.
In the third topic, I will discuss the mechanism for the significant enhancement of the
growth of GaN single crystal by C additive in Na-flux method[3,4].
[1] F. Muttaqien, Y. Hamamoto, K. Inagaki, and Y. Morikawa, J. Chem. Phys., 141,
034702-1-6 (2014).
[2] P. V. Bui, K. Inagaki, Y. Sano, K. Yamauchi, and Y. Morikawa, Current Appl.
Phys., 12, S42-S46 (2012), and submitted to Appl. Phys. Lett.
[3] M. Kawahara, F. Kawamura, M. Yoshimura, Y. Mori, T. Sasaki, S. Yanagisawa, Y.
Morikawa, J. Appl. Phys 101, 066106-1-3 (2007), J. Crystal Growth 303, 34-36 (2007).
[4] T. Kawamura, H. Imabayashi, Y. Yamada, M. Maruyama, M. Imade, M. Yoshimura,
Y. Mori, and Y. Morikawa, Jpn. J. Appl. Phys., 52, 08JA04-1-4 (2013).
-
6
Book of Abstract |
BIO-01
A Density Functional Theory Study of a Calcium-Montmorillonite: A First
Investigation for Medicine Application
Triati Dewi Kencana Wungu, Widayani, Suprijadi
Department of Physics, Institut Teknologi Bandung,
Jl. Ganesha 10 Bandung 40132, Indonesia
Abstract
In this study, we performed structural geometry and electronic properties calculations of
calcium – based clay mineral for medicine application using first principles calculation
by means of Density Functional Theory. Here, a kind of clay mineral used was CaMontmorillonite and it is applied as an absorber of dangerous metal contained in a
human body which causes osteoporosis. Osteoporosis is a disease associated with bone
mass decreases. Since montmorillonite has ability to exchange its cation (Ca+2),
therefore, it plays an important role in preventing or/and cure human bone from
osteoporosis. In order to understand how montmorillonite can do detoxification in the
human body, we firstly investigated the mechanism of Ca adsorption on the surface of
montmorillonite in an atomic level point of view.
Keywords: DFT, Calcium, Montmorillonite
Topic: Biophysics and Medical Physics
7
August 19-20, 2015
BIO-02
The Increasing of Air and Biogas Mixer Instrument for Generating
Friendly Environmental Electricity Power
Ni Ketut Lasmia), Alamta Singarimbunb), and Wahyu Srigutomoc)
a) k.lasmi@yahoo.com
b) alamta@fi.itb.ac.id
c) wahyu@fi.itb.ac.id
Abstract
The abolition of BBM Subsidize by the government causes increasing of its price, so a
solution is necessary to find an alternative energy that is relatively cheap,
environmentally friendly and affordable by all layers of society. Biogas is one of the
renewable energy resources that are potential to be developed, especially in a farming
area, because up until now, animal’s excrement is not yet optimally used and it causes
problem to environment. In response to this, one innovation to do is to make an
instrument which is able to mix biogas and air by venture pipe using the basic theory of
fluid mechanic, in order to raise the use of biogas as electricity source. Biogas
conversion is done by changing fuel in benzene 5 kilowatt genset to biogas so it
becomes a biogas genset. The biogas pressure is controlled when it enters the mixer
instrument so that the velocity of biogas when it enters and it comes out the mixer is the
same, and it will gain different pressure between biogas and air. By the pressure
difference between biogas in the mixer instrument, biogas goes to the burning room so
that the conversion of mechanical energy biogas to electricity will happen, and it will be
applied as light and society’s needs.
Keywords: Instrument, biogas, conversion, environmentally friendly
8
Book of Abstract |
BIO-03
A Comparison between NaI Scintillator and Survey Meter in Low Activity
and Low Energy Radioisotopes Measurement
Mohammad Haekal*, Freddy Haryanto, Abdul Waris
Department of Physics, Institut Teknologi Bandung.
Jalan Ganeca 10, Bandung 40132, Indonesia
*m.haekal.idn@gmail.com
Abstract
Many radioisotopes presence in nature have low energy range and low activity.
Nevertheless, in a huge amount and long exposure, it could posses the risk to harm its
surrounding. In this study, the characteristics of those radioisotopes would be analysed.
NaI scintillator and survey meter would be utilized to measure a sample of radioisotope.
Scintillator that would be used is an integrated part of model 970 portable multi-channel
analyser used for spectroscopy. An ASM-993 advanced survey meter would also be
used as radiation counter and measurement. Cd-109 radioisotope would be used as
sample. Their results would be compared and analyzed to determine the characteristics
of the radioisotope. Initial data taken from the scintillator showed that the radioisotope
showed low count on higher channel number and had highest count around low channel
number (~100).
Keywords: radioisotope, scintillator, survey meter
9
August 19-20, 2015
BIO-04
The Study of Post-Harvest Ambon Banana (Musa Acuminata) Preservation
Using X-Ray
Pratiwi Dwijananti, Putut Marwoto, Retno Sri Iswari, Langlang Handayani
1. Program Pascasarjana Universitas Negeri Semarang.
2. Physics Dept., FMIPA-Universitas Negeri Semarang.
Abstract
An exposure to Ambon banana (Musa Acuminata) samples has been done by using xray with current, voltage and exposure time parameters of the control sample. This study
aimed to determine storage ability of the post-harvest sample. Five samples were
exposured by x-ray with the doze of (3 – 5).10-14 Gy. The samples were stored in room
temperature and evaluated their mass and physiological condition (color and smell)
every two days. It was found that the control sample which was not exposured by x-ray
was ripe in the sixth day indicated by the yellow color and good smell of the banana.
Meanwhile, the samples which were not exposured by (3 – 3,7).10-14 Gy doze of x-ray
looked fresher and still have green color. These samples showed their ripe in the ninth
day and their mass decrease was (12 – 13)%. The preservation of banana can be done
through low-doze x-ray exposure.
Keywords: Ambon banana, x-ray, preservation
10
Book of Abstract |
BIO-05
Study on Inhomogeneity Effect in Phantom using EGSnrc and Geant4 code
system for Varian Trilogy Clinac iX 10 MV Photon Beam
Sitti Yani1), Mohamad Fahdillah Rhani2), Freddy Haryanto1), Idam Arif1)
1) Department of Physics, Institut Teknologi Bandung, Indonesia
2) National University Cancer Institute, Singapore
Abstract
Treatment fields consist of tissue other than water equivalent tissue (soft tissue, bones,
lungs etc). Where the tissue is not water, equivalent distortions to the beam profiles will
occur. The inhomogeneity effect can be investigated by Monte Carlo (MC) simulation.
The Monte Carlo simulation of the radiation transport in an absorbing medium is the
most accurate method for dose calculation in radiotherapy. The aim of this work is to
evaluate the effect of inhomogeneity phantom on dose calculations in photon beam
radiotherapy obtained by different MC codes. We employed the Monte Carlo code
system EGSnrc and Geant4 for this research. These codes use three-dimensional
heterogeneous geometry and transports photons and electrons in the energy range from
1 KeV to some GeV. Inhomogeneity phantom dimension is 30 × 30 × 30 cm3 and made
of 4 material slices (3 cm water, 2 cm aluminium, 7 cm lung and 18 cm water). The
thicknesses of aluminium and lung slice were varied. Simulations were performed for
field size 10 cm × 10 cm at a source-to-axis distance of 100 cm. The spectrum
distribution Varian Trilogy Clinac iX 10 MV was used. Percent depth dose (PDD) and
dose profile was investigated in this research. The effects of inhomogeneities on
radiation dose distributions depend on the amount, density and atomic number of the
inhomogeneity, as well as on the quality of the photon beam. Good agreement between
dose distribution from EGSnrc and Geant4 code system in inhomogeneity phantom was
observed, with dose differences of around 12% and 20% for depth doses and dose
profiles.
Keywords: Varian Clinac iX, Geant4, EGSnrc, Inhomogeneities, Photon beam
11
August 19-20, 2015
BIO-06
Single Energy Micro CT Skyscan 1173 for the Characterization of Urinary
Stone
Leni Aziyus Fitri a*), Vepy Asyana a), Taufiq Ridwan b), Farhan Anwary b),
Hari Soekersi b), Fourier D. E. Latief a), Freddy Haryanto a)
a) Department of Physics, Bandung Institute of Technology,
Ganesha 10, Bandung 40132, Indonesia,
*aeefleni@gmail.com
b) Hasan Sadikin Hospital, Pasteur 38, Bandung 40161, Indonesia
Abstract
A urinary stone is a solid piece of material that produced from crystallization of
excreted substances in the urine. Knowledge of the composition of urinary stones is an
essential part to determine the suitable treatment for the patient. The aim of this research
is to characterize the urinary stones using single energy micro CT SkyScan 1173. Six
human urinary stones were scanned in vitro by means of micro CT SkyScan 1173 using
80 kVp. The produced projection images were then reconstructed using NRecon (inhouse software from SkyScan). The urinary stones were analyzed using CTAn (CT
Analyser) to obtain information of the internal structure and the Hounsfield Unit (HU)
value to determine the information regarding the composition of the urinary stones,
respectively. HU values from some region of interest in the same slice were compared
with reference HU (NIST). From the analysis, the information regarding the
composition of the six scanned stones were obtained. The six stones were two stones
were calcium, one stone was struvite, two stones were calcium+cystine, and the other
was calcium+cystine+struvite,. From the result we can conclude that the single energy
micro CT can be used in identifying calcium, cystine and struvite in urinary stone,
however, the uric acid was unable to be identified.
Keywords: Single energy, micro CT Skyscan 1173, urinary stone
12
Book of Abstract |
BIO-07
Influence of Phantom Diameter on Dose Peak from Varian OBI CBCT v1.4
X-ray Tube Using Monte Carlo Simulation
Muhammad Nasir, Defrianto Pratama, Choirul Anam, Freddy Haryanto
Nuclear Physics and Biophysics Division, Physics Department,
Institut Teknologi Bandung, Indonesia
Abstract
Cone Beam Computed Tomography (CBCT) has developed a major role in medical
applications such as image guided radiotherapy (IGRT). The aim of this research was to
determine the influence of phantom diameter to dose peak generated by varian OBI
CBCT v1.4 X-ray tube working at 100 kV. The tube consists of several components
namely target, exit windows, pre-filter, pre collimator, upper blades, glass and bowtie
filter. EGSnrc code system used in this simulation was divided into two parts. The first
part was simulation of varian OBI CBCT v1.4 X-ray tube using BEAMnrc. The second
part was simulation in cylindrical phantom using DOSRZnrc. Phase space file data
resulted by the first part simulation became input to the second part simulation. The
source used was perpendicular to central axis. This research was performed with varying
phantom diameter 10, 15, 20, 25 and 30 cm. The phantom length was 15 cm. Dose
profile curves was plotted along central axis of phantom at 0.5 cm depth from the
phantom surface. It was obtained that dose peak for each phantom diameter 10, 15, 20,
25 and 30 cm was 2.24 x 10-18 Gy, 1.78 x 10-18 Gy, 1.50 x 10-18 Gy, 1.28 x 10-18 Gy and
1.08 x 10-18 Gy. Dose peak was decreases by rise of phantom diameter. The dose peaks
for smaller phantoms were much greater than for larger sizes. The phantom diameter has
significant effect on the dose delivered. Larger phantom diameter cause dose delivered
to phantom decrease.
Keywords: CBCT OBI v1.4, Dose Peak, Monte Carlo, Cylindrical Phantom
13
August 19-20, 2015
BIO-08
Simulation of 2D brain’s potential distribution based on two electrodes
ECVT using finite element method
Syarif Hussein Sirait a*), Rizki Edmi Edison b), Marlin R. Baidillah b),
Warsito P. Taruno b), Freddy Haryanto a)
a) Nuclear Physics and Biophysics Division, Physics Department
*syarif.hussein.sirait@gmail.com
b) CTECH Labs Edwar Technology, Tangerang, Indonesia
Abstract
The aim of this study was to simulate the potential distribution of 2D brain geometry
based on two electrodes ECVT. ECVT (electrical capacitance volume tomography) is a
tomography modality which produces capacitance distribution image of a subject from
several electrodes capacitance measurements. The method of this study began with
produce 2D brain’s geometry structure based on MRI image and then set the boundary
conditions on the boundaries of this geometry. The value of boundary condition
followed the potential values which were used in two electrodes ECVT, for this reason
the first boundary was set to 20 volt and 2.5 MHz signal and another boundary was set
to ground. Poisson equation was implemented as the governing equation in the 2D brain
geometry and finite element method was used to solve the equation. Hodgkin-Huxley
action potential assumed as electrical activity in the brain was applied as disturbance
potential in the geometry. From this study each of time dependent potential distributions
from non-disturbance and disturbance potential of the 2D brain geometry has been
generated.
Keywords: ECVT, brains potential distribution
14
Book of Abstract |
BIO-09
Design and Testing Of Mini-Size Biogas Plant
Erwin Randjawali and Abdul Waris*
Nuclear Physics & Biophysics Research Division,
Department of Physics, Faculty of Mathematics and Natural Sciences,
Institut Teknologi Bandung,Jl. Ganesa 10 Bandung 40132, INDONESIA
Abstract
Biogas is a renewable source of energy which is developed to fulfill the energy needs of
the society. Two important aspects of the biogas itself is biogas plant and starter. This
research aims to design a mini-sized biogas plant which can be use effectively to
produce the alternative energy, and also to examine the difference quality of biogas
which is produced from slurry which was given starter and slurry which was not given
starter. In this study, a mini-sized biogas plant has been designed, and tested for two
different types of slurry. Ratio of cow dung: water: starter of the first slurry is 3:2:0.003
(The starter which was used in this study is Green Phoskko), and for the second type of
slurry, ratio of cow dung : water is 3:2, but in this second type, the slurry was not given
a starter. Cattle dung used in this study is stored in advance for one week, two weeks,
and three weeks, before use. Result of this study showed that the first type of slurry
produce biogas in a faster time than the second type of slurry. Also, the amount of gas
obtained from the first slurry is more than the second type of slurry. It can be seen from
the length of time which is takes to burn the gas produced from the first slurry much
longer than the second type of slurry.
Keywords: Biogas, biogas plant, slurry, starter
15
August 19-20, 2015
BIO-10
Free Energy Calculation of Melittin in Lipid Bilayer Using Molecular
Dynamics Simulation
Sri R. Natasia1), Acep Purqon2)
1) Graduate School of Mathematics and Natural Sciences,
Bandung Institute of Technology,
Jl. Ganesha 10, Bandung 40132, Indonesia
2) Department of Physics, Faculty of Mathematics and Natural Sciences,
Bandung Institute of Technology,
Jl. Ganesha 10, Bandung 40132, Indonesia
Abstract
Melittin is the most widely studied antimicrobial peptide and has gained interest because
of its potential in therapeutic use. Based on the previous study, it is believed that the
antimicrobial action of melittin involves forming a toroidal pore in the bacterial
membrane that eventually leads to cell death. To gain the insight how this process
occurs, we perform molecular dynamics simulation using different orientations of
melittin to the bilayer surface as the initial conformation. We then calculate the free
energy to asses the most stable structure of this peptide inside the lipid bilayer. To do so,
umbrella sampling method is conducted to determine the coordinate for which the free
energy curve is calculated. In addition, we use a mixing type of lipid bilayer POPE and
POPC to explore its effect towards the antimicrobial interaction with the membrane.
Keywords: melittin, free energy, lipid bilayer, MD simulation
16
Book of Abstract |
BIO-11
Comparison Study of Quadratic program on Optimization Instensity
Modulated Radiation Therapy Treatment Planning (IMRTP) with CERR®
In Case of Lung Cancer
Yati Hardiyanti, Mohammad Haekal, Abdul Waris, Freddy Haryanto
Departement of Physics, Nuclear Physics and Biophysics,
Abstract
Radiotherapy has become used alternative for cancer treatment. Research reference to
this topic has been developed greatly, one of them is in treatment planning system (TPS)
process. Optimization is one of its branch, become one of the most researched aspect in
radiotherapy. In this research, comparison study of quadratic program on optimization
Intensity Modulated Radiation Therapy Treatment Planning (IMRTP) with CERR in
case of lung cancer. We assume that the number of beams to be used for the treatment is
given by the treatment planner as much as 9 and 13 beam. Energy has become used 6
MV with isodistance of 100 cm and IM parameters used Quadratic Infinite beam (QIB)
pencil beam dose calculation algorithm in CERR, variation dose-term used Primary with
variation scatter method used threshold, and exponential. In this case for lung cancer has
become used variation threshold of 001, and 0004 to large structure. The output of the
dose distribution analysis with plot comulative in the form of dose volume histogram
(DVH) in treatment volume CTV, PTV, GTV, OAR, and normal tissue. In this study
used CERR obtained maximum of dose distribution to the target volume of GTV and
minimum of dose distribution to normal tissue. Therefore from the result of DVH
analysis obtained for primary QIB dose calculation algorithm can be seen in the dose
distribution of the 80 Gy to the PTV on 0.5 of the overall volume, CTV on 0.7 of the
overall volume, GTV on 0.92 of the overall volume, OAR and normal tissue on (0-0.04)
of the overall volume. This is appropriate with the theory that the maximum of dose
distribution has given to GTV and minimum of dose distribution has given to OAR and
normal tissue.
Keywords: Optimization IMRT, Quadratic Infinite beam (QIB) algorithm in CERR,
dose distribution, dose volume histogram
17
August 19-20, 2015
BIO-12
Cylinder Pile Horizontal Vibration Experiment to Observe Rolling Friction
on Avalanches in Two Dimensional Granular System
Yopy Mardiansyah*, Yulia, Mairizwan, Suprijadi, dan Sparisoma Viridi
Bandung Institute of Technology
Abstract
Dynamics of two dimension granular materials in the form of cylinder pile positioned
on top of a horizontal plate, which is horizontally vibrated, is reported in this work. It is
aimed to observe transition of motion and structural change of the cylinder pile vibrated
in certain frequency and amplitude. Vibration source is DC motor whose angular
velocity is determined by the power supply voltage. Frequency is counting by using
opptocoupler sensor acquired by using Arduino Uno. Dimensionless acceleration is
generally used in granular materias to observe transition between states, e.g. stable,
rotating without slipping, rolling, and slipping in Γ and f plane. For this case additional
states for the pile can also be observed, e.g stable and flowing state. Observations are
conducted for frequency (Hz) and amplitude (cm).
Keywords: vibrasi horisontal, granular materials, cylinder pile, parameter vibrasi.
18
Book of Abstract |
BIO-13
Analysis of Radiation Impact on White Mice through Radiation Dose
Mapping in Medical Physics Laboratory
Riza Aryawijayanti, Susilo dan Sutikno*
Semarang State University
D7 Building, 2nd Floord, Sekaran Campus, Gunungpati,
Semarang, Indonesia, 50229
*E-mail : smadnasri@yahoo.com
Abstract
A study about X-ray radiation impact on the white mice through radiation dose mapping
in Medical Physic Laboratory is already done. The purpose of this reasearch is to
determine the minimum distance of radiation worker to X-ray instrument through
treatment on the white mice. The radiation doses are measured on the variated distances
between 30 cm up to 80 with distance interval of 30 cm. The impact of radiation on
white mice and different direction of radiation measurement are investigated. It is
founded that minimum distance of radiation worker to radiation source is 180 cm and Xray has decreased leucosite number and haemoglobin and has increased trombocite
number in the blood of white mice.
Keywords: Radiation dose mapping; Radiation impact; White Mice
19
August 19-20, 2015
COM-01
NUMERICAL APPROACH OF HAMILTON EQUATIONS ON DOUBLE
PENDULUM MOTION WITH AXIAL FORCING CONSTRAINT
Intan Indiati 1,2,*; Joko Saefan 1,2; Putut Marwoto 1
1. Program Pascasarjana Universitas Negeri Semarang
2. FPMIPATI Universitas PGRI Semarang
*Email: iin.indi3@gmail.com
Abstract
Double pendulum with axial forcing constraint is considered using Hamilton equations.
In this case, the total Hamiltonians are complicated because of its constraint. Solution of
thus equation is solved numerically by Runge-Kutta methods. The result is plotted in
phase-space diagram. In thus diagrams, the chaotic motion rise which depend on given
forcing factor.
Keywords: Double pendulum, axial forcing, Hamilton equations, chaotic motion
Topic: Computational Physics
20
Book of Abstract |
COM-02
Predicting Diameter of Electrospun Nanofiber by Superpositioning
Exponential Series
Putri Mustika Widartiningsih, Ferry Iskandar, Muhammad Miftahul Munir,
Sparisoma Viridi
Abstract
This paper presents an analytical study of the correlation between viscosity and fiber
diameter in electrospinning. Controlling fiber diameter during electrospinning was
important since it would determine the performance of resulting nanofiber.
Theoretically, fiber diameter was determined by surface tension, solution concentration,
flow rate, and electric current. But experimentally it had been proven that significantly
viscosity had an influence to fiber diameter. Jet radius equation in electrospinning was
divided into three areas: near the nozzle, far from the nozzle, and jet terminal. There was
no correlation between these equations. Superposition of exponential series model
provides the equations combined into one, thus the entire of working parameters on
electrospinning take a contribution to fiber diameter. This method yields the value of
viscosity has a linear relation to jet radius. This method works in low viscosity.
Keywords: electrospinning, exponential series, fiber diameter, viscosity.
21
August 19-20, 2015
COM-03
Budding Yeast Colony Growth Study Based on Circular Granular Cell
Devi Aprianti R.A. a,*), S.N.Khotimah b), Sparisoma Viridi b)
(a) Computational Science Department, Faculty of Mathematics and Natural Sciences,
*anaanti.1405@gmail.com
(b) Nuclear Physics and Biophysics Research Division, Physics Department,
Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung
Abstract
Yeast colony growth can be modeled by using circular granular cells which can grow
and produce bud. Bud growth angle can be set to regulate cell budding pattern.
Adhesion force, contact force and Stokes force was adopted to accommodate the
behavior and interactions among cells. Simulation steps is divided into two step, the
explicit step is due to cell growing and implicit step for the cells rearrangement. Only in
explicit step that time changes was performed. In this study, we examine the influence
of cell diameter growth time and reproduction time combination toward the growth of
cell number and colony formation. We find a commutative relation between the cell
diameter growth time and reproduction time to the specific growth rate. The greater
value of multiplication of the parameters, the smaller specific growth rate is obtained. It
also shows a linear correlation between specific growth rate and colony diameter growth
rate.
Keywords: Colony growth, Two-dimension model, Granular cell, molecular dynamic
22
Book of Abstract |
COM-04
First Principle Study of Proposed Model for Acetylcholinesterase Enzyme
and Substrate (Acetylcholine, Rivastigmine) Interaction
Vera Khoirunisa a), Febdian Rusydi b*), Aditya G. Saputro a), Hermawan K. Dipojono a),
and Hideaki Kasai c)
a) Department of Engineering Physics, Institut Teknologi Bandung, Bandung, Indonesia
b) Theoretical Physics Research Group, Department of Physics, Universitas Airlangga,
Surabaya, Indonesia
*rusydi@fst.unair.ac.id
c) Department of Precision Science and Technology and Applied Physics, Graduate
School of Engineering, Osaka University, Osaka, Japan
Abstract
The catalytic activity of acetylcholinesterase enzyme (AChE) relates to the symptom
progress in Alzheimer’s disease. Interaction of AChE with rivastigmine (from the
medicine) can reduce its catalytic activity toward acetylcholine to decelerate the
progression of Alzheimer’s disease. This research attempts to study the interaction of
AChE with rivastigmine and with acetylcholine (without the presence of rivastigmine)
using density functional theory by simplifying the reaction occurs in the active site,
which is assumed to be C2H5OH, C3N2H3(CH3), and CH3COO-. The results suggest
that AChE interacts easier with acetylcholine than with rivastigmine, which implies that
the medicine does not effectively reduce the catalytic activity of AChE. At this stage, no
experimental data is available to be compared with the calculation results. Nonetheless,
this study has shown a good prospect to understand the AChE-substrate interaction
using a first-principles calculation.
Keywords: Rivastigmine; Alzheimers disease; drug modeling; DFT
23
August 19-20, 2015
COM-05
Ab Initio Elastic Properties calculation of Gold (Au)
Iwan Prasetiyo, Kemal Agusta
Engineering Physics, Faculty of Industrial Technology, Institut Teknologi Bandung,
Jl.Ganesa No.10 Bandung 40132, INDONESIA
Abstract
Elastic properties of Gold (Au) are calculated based on Ab Initio approach by which
total energy of Au in respect with volume can be obtained. The elastic properties can
then be determined by fitting the calculation results with particular parametric formula.
Compared with experimental data (macroscopic properties), it is found that the use of
Local Density Approximation (LDA) as energy exchange potential is in good agreement
than Generalized Gradient Approximation (GGA) based. It is also found that a second
order curve fit formulae is not sufficient in order to get reasonable accuracy even for
simple atom structure like Au. Despite this, Ab Initio approach with LDA based is
potential to predict mechanical properties of solid. This calculation approach is useful
for multi-scale simulation which link the result from micro-macroscopic properties and
vice versa where engineering can benefit from such a framework.
Keywords: Ab Initio, Elastic property, LDA, Gold (Au)
24
Book of Abstract |
COM-06
First-principles Molecular Dynamics study on Helium Filled CarbonNanotube
Mohammad Kemal Agusta 1), Iwan Prasetiyo 1), Adhitya Gandaryus Saputro 1),
Ryo Maezono 2), Hermawan K Dipojono 1)
1) Engineering Physics Research Group, Faculty of Industrial Technology,
Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 , Indonesia
2) School of Information Science, Japan Advanced Institute of Science and Technology,
Asahidai 1-1, Nomi, Ishikawa 923-1292, Japan
Abstract
We report on the investigation of carbon nanotube (CNT) filled by Helium (He) using
Density Functional Theory and Born-Oppenheimer Molecular Dynamics Simulation. He
atom is weakly interacting with the CNT’s wall and find its equilibrium position at the
tube center. Vibrational analysis on vibrational modes reveals that He filling tends to
strengthen the CNT structure. Moreover, examination on C-C stretch mode reveals that
the existence of He improve the stiffness of CNT’s wall. Molecular dynamics
calculations are done on (3,3) and (5,5) nanotube with 0.25 gr/cm3 and 0.5 gr/cm3 He
densities at 300 K and 1500 K. Effects of variation of chirality, temperature and He
density on CNT wall stiffness are presented.
Keywords: Density Functional Theory, Molecular Dynamics, Carbon-nanotube
25
August 19-20, 2015
COM-07
Density Functional Study of Adsorptions of CO2, NO2 and SO2 molecules
on Zn(0002) surfaces.
Nugraha, Adhitya Gandaryus Saputro 1), Mohammad Kemal Agusta 1), Brian Yuliarto 1),
Hermawan K. Dipojono 1), Ryo Maezono 2)
1) Engineering Physics Research Group, Faculty of Industrial Technology, Institut
Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 , Indonesia
Abstract
We report on a theoretical study of CO2, NO2 and SO2 molecules on ZnO(0002)
surfaces using Density Functional Theory (DFT) calculations. These adsorptions are
done on perfect and defective Zn(0002) surfaces. We find that all of these molecules are
chemically adsorbed on the perfect ZnO(0002) surface. However, in the presence of Zn
vacancy, we find that the surface is only active toward SO2 molecule. On the OHcovered ZnO(0002) surface, CO2 and SO2 molecules can react with the pre-adsorbed
OH molecule and only physically adsorbed on the surface. Detail discussion will be
elaborated on the symposium.
Keywords: Density Functional Theory, Zinc-oxide, NOx, COx, SOx
26
Book of Abstract |
COM-08
DFT Study of Adsorption of CO2 on Palladium Cluster Doped by
Transition Metal
Adhitya Gandaryus Saputro 1), Mohammad Kemal Agusta 1),
Triati Dewi Kencana Wungu 3), Febdian Rusydi 4) , Suprijadi 2), Hermawan K. Dipojono
1)
2) Theoretical High Energy Physics and Instrumentation Research Group, Faculty of
Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10,
Bandung 40132, Indonesia
3) Nuclear and Biophysics Research Group, Faculty of Mathematics and Natural
Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia
4) Department of Physics, Faculty of Science and Technology, Airlangga University ,
Surabaya 60115, Surabaya Indonesia
Abstract
We report on a theoretical study of CO2 adsorption on Pd6-M (M: Ni, Cu, Pt, Rh)
cluster using First-principles Density Functional Theory calculations. This study can be
regarded as an attempt to find a candidate for new CO2 hydrogenation catalyst. The use
of metal-cluster system in this work is intended to explore the unique size-effect on the
catalytic performance. CO2 adsorption with a bidendate conformation is found on Pdcluster, in contrast with adsorption on Cu or Pd surfaces where linear conformation is
more favored. Modification of adsorption configuration and strength are also found
upon the introduction of other transition metal impurities.
Keywords: Density Functional Theory, Paladium, Cluster, CO2 hydrogenation catalyst
27
August 19-20, 2015
COM-09
Simulation of Oil-Water Flow Through a Porous Medium by a ThreeDimensional SPH Method
Herlan Setiadi, Suprijadi
Abstract
The oil-water flow through a porous medium is an interesting problem. The interaction
in the interface of oil-water, water-solid, and oil-water is the important part to be
concerned. We must consider cohesion, adhesion, surface tension, and buoyancy force.
Here, we simulate the phenomenon by using SPH method. We investigate the effect of
the physical property of these fluids and the solid to filter oil from water. The fluid goes
down and passes through the porous medium due to gravitation. Our simulation makes
possible to filter oil from water.
Keywords: Smoothed particle hydrodynamics, Surface tension, Adhesion, Cohesion,
Filter
28
Book of Abstract |
COM-10
DFT Study of the Formate Formation on Ni(111) Surface Doped by
Transition Metals [Ni(111)-M; M=Cu, Pd, Pt, Rh]
Nugraha 1), Adhitya Gandaryus Saputro 1), Mohammad Kemal Agusta 1),
Febdian Rusydi 2), Ryo Maezono 3), Hermawan K Dipojono 1)
2) Department of Physics, Faculty of Science and Technology, Airlangga University,
Surabaya 60115, Surabaya Indonesia
Abstract
We report on a theoretical study of the formation of formate (COOH) from the reaction
of CO2 gas and a pre-adsorbed H atom on Ni(111) surface doped by transition-metal
[Ni(111)-M; M= Cu, Pd, Pr, Rh] by means of Density Functional Theory (DFT)
calculations. This COOH formation is one of the most important rate-limiting steps in
methanol synthesis process. This COOH formation has a relatively slow reaction
because CO2 molecule is usually difficult to be chemically adsorbed on a catalyst
surface. We find that the presence of transition metal doping on the first layer of
Ni(111) surface could reduce the activation barrier of this reaction (up to ~38.4%)
compared to clean Ni(111) surface. We also find that the presence of Rh doping allows
CO2 molecule to be chemically adsorbed on Ni(111) surface with a bidendate
configuration. However, activation barrier reduction for the COOH formation on
Ni(111)-Rh surface is not significant.
Keywords: Density Functional Theory, Catalyst, Formate formation, transition metals
29
August 19-20, 2015
COM-12
Two Dimension Magnetotelluric Modelling Using Finite Element Methods,
Incomplete LU Preconditioner and Biconjugate Gradient Stabilized
Techniques
Muhammad Zukir, Wahyu Srigutomo
Physics of Earth and Complex system, Faculty of Mathematics and Natural Sciences
Abstract
Magnetotelluric method is passive geophysical exploration techniques as utilizing
natural resources to obtain a variation of the electric field and magnetic field on the
surface of the earth. The frequency range used in this research is 10^(-4) Hz to 10^2
Hz. Two Dimension magnetotelluric modelling aims to determine the value of apparent
resistivity, impedance phase, and electromagnetic field in the earth. Physical parameters
used are Maxwells equations. This equation will be used in the case of Transverse
Electric polarization (TE) and Transverse Magnetic polarization (TM). Element
discretization using the finite element methods. ILU Preconditioner utilized is combined
with Biconjugate Gradient Stabilized (BiCGStab) techniques can minimize the iteration
process (computational cost) more effective than the others.
Keywords: Forward modelling, Finite element, ILU, BiCGStab,Magnetotelluric
30
Book of Abstract |
COM-13
The use of C++ Programming Language for geothermal reservoir modeling
Suka Prayanta Pandia, Alamta Singarimbun
Abstract
The aim of this study is to model the geothermal reservoir using two-dimensional
polygons Talwani. Geothermal energy is one alternative energy to meet human needs
for energy. Generally, geothermal energy is used to turn a generator to produce
electricity. In this study, the heat reservoir is a fluid assumed mass density 1000 kg/m3.
To find the location of the reservoir, then used some exploration methods, one of which
is the gravity method. Gravity method uses the principle of gravity between the masses,
so that different mass meeting will provide acceleration values measured are different.
The final value is sought in this method is the Bouguer anomaly, which is the result of
the measurement values are then carried out a correction - a correction. In interpreting
the object cause of the anomaly, then in this study used a polygon method Talwani. This
method assumes that the heat reservoir can be considered as objects berbanyak side. The
programming used in this study is C ++ as the language quickly in command execution.
Keywords: Exploration, geothermal energy, gravity methods, polygon Talwani
31
August 19-20, 2015
COM-14
Comparison of Mathematical Equation and Neural Network Modelling for
Drying Kinetic of Mendong in Microwave
Rifaatul Maulidah, Acep Purqon
Physics of Earth and Complex Systems, Institut Teknologi Bandung, Indonesia
Abstract
Mendong (Fimbristylis globulosa) has a potentially industrial application. We
investigate a predictive model for heat and mass transfer in drying kinetics during
drying a Mendong. We experimentally dry the Mendong by using a microwave oven. In
this study, we analyze ten mathematical equations and feed forward back propagation
network from artificial neural network (ANN) to describe the drying behavior of
Mendong. Our results show that the experimental data and the artificial neural network
model has a good agreement and better than a mathematical equation approach. This
Drying kinetics modelling is potentially applied to determine the optimal parameters
during mendong drying and to estimate and control of drying process.
Keywords: drying kinetics; mathematical equation modelling; artificial neural network
32
Book of Abstract |
COM-15
Prediction of Dried Durian Moisture Content Using Artificial Neural
Networks
Marati Husna*, Acep Purqon
*maratihusna@gmail.com
Abstract
Moisture content has a crucial issue in post harvest processing since it plays main role to
estimate a quality of dried product. However, to estimate the moisture content is
difficult since it shows mathematically nonlinear systems and complex physical
processes. We investigate the prediction of moisture content of dried product by using
Artificial Neural Networks (ANN). Our sample is a Bengkulu’s local durians that were
dried using a microwave oven. Our results show that ANN can predict the moisture
content by performing with R2 values is 98.47 %. Moreover, the RMSE values is 3.97
% and MSE values is 0.16 %. Our results indicate that ANN model have high capability
for predicting moisture content and it is potentially applied in post harvest product,
especially in drying product quality control.
Keywords: durian, Artificial Neural Networks, drying, moisture content
33
August 19-20, 2015
COM-16
Prediction of Soil Thermal Conductivity that Involve Plant Growth using
Neural Network
Afni Kumala Wardani1, Acep Purqon2
1 Program Studi Magister Pengajaran Fisika, Institut Teknologi Bandung
2 Fisika Bumi dan Sistem Kompleks, Instut Teknologi Bandung
Abstract
Soil temperature has a main role in physical processes in soil such as energy transfer
between land surface and atmosphere and also biological process such as plant growth.
Soil temperature difference indicates the transfer of kinetic energy amount of molecules
which move rapidly from high temperature of warm soil region to the colder ones.
Difference of soil type has the difference ability to conduct heat. This capacity known as
soil thermal conductivity. This thermal properties can be observed from soil heat
conduction process in diurnal cycle involving the change day and night. This thermal
properties is also influence the plant growth. This paper is aimed to predict soil thermal
conduction trough the observation of soil heat conduction process from many difference
soil type which involves plant growth using neural network. The data input are
observation time, temperature, soil depth, soil resistivity, and soil type, meanwhile
target is soil thermal conductivity. The data input obtained from laboratory experiment.
There are four soil types (loam, sandy, sandy-loam and clay) heated in conductor can
until reach on 30.0°C and 35.0°C. Soil temperature measurement using two digital
thermometer with ± 0.1 °C in accuracy which is measured in 2 cm and 6 cm in depth
from soil surface. The difference of soil temperature measured every five minutes until
reaching expected temperature, then stopping heating process while observation is still
established. The data were taken along 3 hours. Every soil contains seed of grains to
know the influence of soil thermal conductivity to physical changes in plant growth
during three days. The 75 percent of the data used as data training, 15 percent for
validation, and 15 percent for a test. The result of testing data shows that have been
trained conformity between the targets with the output of the program. Results of the
conformity prediction can be used as a reference the use of neural network as one
program to predict soil thermal conductivity that involve plant growth.
Keywords: konduktivitas termal tanah, tanah, neural network - soil thermal
conductivity, soil, neural network
34
Book of Abstract |
COM-17
Particle-based Simulation of Rayleigh-Taylor Instability
Nur Asiah Aprianti*, Sparisoma Viridi, Zaki Su’ud, dan Koji Morita
Department of Physics, ITB
Abstract
Rayleigh-Taylor instability is a typical benchmark in a computational fluid dynamics,
which shows interpenetrate materials happend when a heavy liquid is above a lighter
liquid. In particle methode, Shirakawa et. al. had been proposed a correction term on
modelling a buoyancy force to show the phenomena of Rayleigh-Taylor instability in
the simulation. By adjust a specific value of correction term for a specific mass density
ratio, Rayleigh-Taylor instability phenomena had been observed on MPS as well as FVP
methods. In this study, several mass density ratio of liquids have been proposed as
parametric simulation to observe Rayleigh-Taylor instability. The results show the
correlations between mass density ratio as well as surface tension ratio and the
correction term value of buoyancy model. This result confirmed that the model is valid
for a typical correlation.
Keywords: particle method, Finite Volume Particle (FVP) method, Rayleigh-Taylor
instability
35
August 19-20, 2015
COM-18
Modelling and calculation of waveguide with optical amplification using
Finite Difference Time Domain method
Rahmat Hidayat, Okky Fajar Tri Maryana
Physics of Magnetism and Photonics Research Division,
Faculty of Mathematics and Natural Sciences,
Abstract
Finite Difference Time Domain (FDTD) method has been much employed for studying
light propagation in various structures, from simple one-dimensional structures up to
three-dimensional complex structures. One of challenging problems is to implement this
method for the case of light propagation in amplifying medium or structures, such as
optical amplifier and lasers. The implementation is hindered by the fact that the
dielectric constant becomes a complex number when optical gain parameter is involved
in the calculation. In general, complex dielectric constant is related to complex
susceptibility, in which the imaginary part is related to optical gain. Here, we then
modify the formulation for updating electric field in the calculation algorithm. Using
this approach, we then finally can calculate light amplification in laser active medium of
Nd3+ ion doped glass. The calculation result shows an agreement with the result from
the calculation using differential equation for intensity. Although this method is more
time consuming, the method seem promising for optical complex micro- and nanostructures, such quantum dot lasers, micro-ring lasers, etc.
Keywords: optical amplification, laser, rare-earth laser, Finite-Difference Time-Domain
(FDTD)
36
Book of Abstract |
EDU-01
PRELIMINARY DESIGN OF ICI BASED MULTIMEDIA FOR
RECONCEPTUALIZING ELECTRICITY CONCEPTION IN
INDONESIA UNIVERSITY OF EDUCATION
Achmad Samsudin, Andi Suhandi, Dadi Rusdiana, & Ida Kaniawati
Science Education Program, Indonesia University of Education, Bandung, Indonesia
Physics Education Department, Indonesia University of Education, Bandung, Indonesia
Abstract
Interactive Conceptual Instruction (ICI) based Multimedia has been developed to
represent the concept of electricity becomes more real and meaningful. Preliminary
design of ICI based multimedia is a multimedia computer that allows users to explore
more the concept of electricity overall in terms of the existing conceptual and practical.
Pre-service physics students should be provided with the learning that could optimize
the conception held by re-conceptualizing concepts in Basic Physics II, especially the
concept of electricity. To collect the main data and analysis depth, researchers used a
method ADDIE such as: analyzing, design, development, implementation, and
evaluation. ADDIE development steps used to describe comprehensively from the
analysis phase of the program to the program evaluation. Based on data analysis, it can
be reported that ICI based Multimedia could be well developed and according to reconceptualize electricity concept for prospective teachers of Physics students at the
Indonesia University of Education.
Keywords: Preliminary design, ICI based multimedia, Re-conceptualizing, Electricity
Topic: Physics Education
37
August 19-20, 2015
EDU-03
Characteristics of Abductive Inquiry in Earth and Space Science: An
Undergraduate Teacher Prospective Case Study
Taufik Ramlan Ramalis 1), Liliasari 2), Dany Herdiwidjaya 3)
1 Physics Education Department, UPI
2 Postgraduate School, UPI
3 Astronomy Department, ITB
Abstract
The purpose this case study was to describe characteristic features learning activities in
the domain of earth and space science. Context of this study is earth and space learning
activities on three groups of student teachers prospective, respectively on the subject of
the shape and size of Earth, land and sea breeze, and moons orbit. The analysis is
conducted qualitatively from activity data and analyze students doing project work,
student worksheets, group project report documents, note and audio recordings of
discussion. Research findings identified the type of inquiry factual abduction, legal
abduction, existential abduction and theoretical models abduction during the learning
process. Implications for science inquiry learning as well as relevant research were
suggested.
Keywords: Abductive Inquiry, earth and space, teacher prospective
38
Book of Abstract |
EDU-04
Microscopis Virtual Media (MVM) in physics learning: a case study on
students understanding of heat transver
Firmanul Catur Wibowo1), Andi Suhandi 1), Yayat Ruhiyat 2)
1 Indonesia University of Education.
2 Sultan Ageng Tirtayasa University
Abstract
A research domain in physics learning is focused on the study of the effects of various
types of learning interventions aimed to help students scientific conception construct.
Microscopic Virtual Media (MVM) are applications of special interest in physics
learning because they can support powerful modeling microscopis involving physics
concepts and processes. In this study one groups (experimental) of 18±20 years old
students were studied to determine the role of MVM in the development of functional
understanding of the concepts of thermal expansion in heat transver. The experimental
group used MVM also. The results presented here show that students working with
virtual media exhibited significantly higher scores in the research tasks. Our findings
strongly support that MVM may be used as an alternative instructional tool, in order to
help students confront their scientific conception construct and develop functional
understanding of physics.
Keywords: Microscopic Virtual Media (MVM), scientific conception construct,
understanding of heat transver
39
August 19-20, 2015
EDU-05
An Analysis Of Mimosa Pudica’s Leaves Movement By Using Logger Pro
Software
Sugito 1,2*; Susilo, Langlang Handayani 1), Putut Marwoto 1)
2. SMP Negeri 1 Bandungan
* Email: gitafis@yahoo.co.id
Abstract
The unique phenomena of Mimosa pudica are the closing and opening movement of its
leaves when they got a stimulus. These movements can be drawn into graphic that can
be analyzed. The Logger Pro software is software that can be used to analyze the closing
and opening phenomena of Mimosa pudica’ leaves. This software can be used to
analyze its leaves’ movement video. The resulted graph can then be used to analyze
some variables. The result showed that the movement fits an equation of y = mt + c.
Keywords: LoggerPro, Mimosa pudica, movement analysis
40
Book of Abstract |
EDU-06
Profile Of Students Interest Reading Physics Book On Study Program
Physics Education Through The Assignment Review On Advance Course
Diah Mulhayatiah 1,a) Endah Kurnia Yuningsih 2,b) Nuansa Puji Ermaya 2,c)
1 The Study Program Physics Education, Department of Science Education,
Faculty of Tarbiyah and Education, UIN Syarif Hidayatullah Jakarta.
2 The Study Program Physics Education, Department of Mathematic and Natural
Science , Faculty of Tarbiyah and Education, UIN Sunan Gunung Djati Bandung
a)diahmfis@gmail.com
b)EndahKurniaSGD@gmail.com
c)nuansapuji@gmail.com
Abstract
The purpose of this study was to determine student interest in reading physics book on
the Study Program Physics Education before and after the assignment of book reviews.
The method used is descriptive research with the form of research studies is the
influence. The study population was 88 students and all as respondents. This study uses
a questionnaire as a data collection tool that consists of 35 items questionnaire, with 20
grain open questionnaire and 15 grain enclosed questionnaire. The results showed that
the change in student attitude toward interest in reading physics books after the
implementation of the assignment of book reviews. Before the assignment only a small
portion of students who have a habit of reading often is only 20%, after the assignment
of book reviews habit of reading books often that students be increased, ie by 68%. This
shows that the assignment of book reviews to be one of the factors that increase student
interest in reading physics books be increased
Keywords: interest in reading books, assignments review
41
August 19-20, 2015
EDU-07
Bringing Javanesse Traditional Dance into Basic Physics Class:
Exemplifying Projectile Motion through Video Analysis
Langlang Handayani, Mahardika Prasetya Aji, Susilo, Putut Marwoto
1. Program Pascasarjana Universitas Negeri Semarang.
2. Physics Dept., Faculty of Mathematics and Natural Sciences,
Universitas Negeri Semarang
D7 Building, 2nd floor, Sekaran-Gunungpati, Semarang
Abstract
An alternative approach of an arts-based instruction for Basic Physics class has been
developed through the implementation of video analysis of a Javanesse traditional
dance: Bambangan Cakil. A particular movement of the dance - weapon throwing - was
analyzed by employing the LoggerPro software package to exemplify projectile motion.
The results of analysis indicated that the movement of the thrown weapon in
Bambangan Cakil dance provides some helping explanations of several physics
concepts of projectile motion: object’s path, velocity, and acceleration, in a form of
picture, graph and also table. Such kind of weapon path and velocity can be shown via a
picture or graph, while such concepts of decreasing velocity in y direction (weapon
moving downward and upward) due to acceleration g can be represented through the use
of a table. It was concluded that in a Javanesse traditional dance there are many physics
concepts which can be explored. The study recommends to bring the traditional dance
into a science class which will enable students to get more understanding of both
physics concepts and Indonesia cultural heritage.
Keywords: Javanesse Traditional Dance, Basic Physics, Projectile motion, video
analysis
42
Book of Abstract |
EDU-09
DEVELOPMENT OF AN ICT-BASED AIR COLUMN RESONANCE
LEARNING MEDIA
Eka Purjiyanta1,2, Langlang Handayani1, Putut Marwoto1
2. SMP Negeri 2 Demak , Central Java , Indonesia
Abstract
Commonly, the sound source used in the air column resonance experiment is the tuning
fork having disadvantage of unoptimal resonance results due to the sound produced
which is getting weaker. In this study we made tones with varying frequency using the
Audacity software which were, then, stored in a mobile phone as a source of sound. One
advantage of this sound source is the stability of the resulting sound enabling it to
produce the same powerful sound. The resulting sound stays longer, so it can be used
for the first, second, third and next resonance experiments. This study aimed to (1)
explain how to create tones that can substitute tuning forks sound used in air column
resonance experiments, (2) illustrate the sound wave that occurred in the first, second,
and third resonance in the experiment, and (3) determine the speed of sound in the air.
This study used an experimental method. It was concluded that; (1) substitute tones of a
tuning fork sound can be made by using the Audacity software; (2) the form of sound
waves that occured in the first, second, and third resonance in the air column resonance
can be drawn based on the results of video recording of the air column resonance; and
(3) based on the experiment result, the speed of sound in the air is 346.5 m/s, while
based on the chart analysis with logger pro software, the speed of sound in the air is
343.9 ± 0.3171 m/s.
Keywords: Resonance, Air Column, Learning Media, ICT
43
August 19-20, 2015
EDU-10
Science Awareness and Science Literacy through the Basic Physics Course:
Physics with a bit of Metaphysics?
Aloysius Rusli
Physics Department, FTIS, Parahyangan Catholic University, Bandung 40141
Abstract
Until the 1950s, it is well known and practiced in Indonesian Basic Physics courses, to
present physics from within its effective technicalities: The ideally elastic spring, the
pulley and moving blocks, the thermodynamics of ideal engine models, theoretical
electrostatics and electrodynamics with model capacitors and inductors, wave behavior
and its various superpositions, and hopefully closed with a modern physics description.
A different approach was then also experimented with, using the Hobson and Moore
texts, stressing the alternative aim of fostering awareness, not mastery, of science and
the scientific method. This is hypothesized to be more in line with the changing attitude
of the so-called Millenials cohort who are less attentive if not interested, and are more
used to multi-tasking which suits their shorter span of attention. The upside is increased
awareness of science and the scientific method. The downside is that they are getting
less experience of the scientific method which intensely bases itself on critical
observation, analytic thinking to set up conclusions or hypotheses, and checking
consistency of the hypotheses with measured data. Another aspect is recognition that the
human person encompasses both the reasoning capacity and the mental-spiritual-cultural
capacity. This is considered essential, as the world grows even smaller due to increased
communication capacity, causing strong interactions, nonlinear effects, and showing
that value systems become more challenging and challenged due to physics / science
and its cosmology, which is successfully based on the scientific method.So students
should be made aware of the common basis of these two capacities: the assumptions, the
reasoning capacity and the consistency assumption. This shows that the limits of science
are their set of basic quantifiable assumptions, and the limits of the mental-spiritualcultural aspects of life are their set of basic metaphysical (non-quantifiable)
assumptions. The bridging between these two human aspects of life, can lead to a “why”
of science, and a “meaning” of life. A progress report on these efforts is presented,
essentially being of the results indicated by an extended format of the usual weekly
reporting used previously.
Keywords: science awareness and literacy, mental-spiritual-cultural human capacity,
basic physics format
44
Book of Abstract |
EDU-12
The Influence of Using Momentum and Impulse Computer Simulation to
Senior High School Students’ Concept Mastery
Ida Kaniawati *) , Achmad Samsudin, Yopi Hasopa
Physics Education Department, Mathematics and Natural Sciences Education Faculty,
Indonesia University of Education, Jalan Setiabudhi No. 229 Bandung 40154, Indonesia
*idakaniawati@yahoo.com
Abstract
This research is based on students’ lack of mastery of physics abstract concepts. Thus,
this study aims to improve senior high school students’ mastery of momentum and
impulse concepts with the use of computer simulation. To achieve these objectives, the
research method employed was quasi experimental design with one group pretest posttest. A total of 36 science students of grade 11 in one of public senior high school in
Bandung became the sample in this study. The instruments utilized to determine the
increase of students’ concept mastery were pretest and post-test in the form of multiple
choices. After using computer simulations in physics learning, students’ mastery of
momentum and impulse concept has increased as indicated by the normalized gain of
0.61 with the medium category.
Keywords: Computer Simulation, Concept Mastery, Momentum and Impulse
45
August 19-20, 2015
EDU-13
Implementation Literacy Strategies on Theme Based Learning: Health
Technologies and Transportation to Enhance Indonesian Junior High
School Student’s Physics Literacy
Selly Feranie, Ridwan Efendi, Saeful Karim, Dedi Sasmita
Physics Department, Indonesia University of Education
Abstract
The PISA results for Indonesian Students are lowest among Asian countries in the past
five years. Therefore various Inovations in science learning process and its efectiveness
enhancing student’s science literacy is needed to enrich middle school science teachers.
Literacy strategies have been implemented on health technologies and tranportation
theme learning to enhance Indonesian Junior high school Student’s Physics literacy.
heat engine theme learning and Automotive gauge theme learning for seventh grade,
Lasik surgery and Ultra sonography (USG) theme learning for eight grade. Science
learning process involves at least teacher instruction, student learning and a science
curriculum. We design two main part of literacy strategies in each theme based learning.
First part is Integrated Reading Writing Task (IRWT) is given to the students before
learning process, the second part is investigation learning process design. The first part
is to enhance student’s science knowledge and reading comprehension and the second
part is to enhance student’s science competencies. In this paper, we provide briefly how
the this literacy statregies have been inplemented in theme base learning and its
efectiveness analized by normalized gain
Keywords: literacy strategies, theme based learning
46
Book of Abstract |
EDU-17
Interactive Learning Media for Image Formation by Thin Lenses and Their
Applications Using Macro Visual Basic in Microsoft PowerPoint
Sari Sami Novita*, Siti Nurul Khotimah, Wahyu Hidayat
Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology
Jalan Ganesha 10, Bandung 40132, Indonesia
*sarisaminovita@gmail.com
Abstract
There are two types of lenses are used, namely a convex lens and a concave lens.
Microscope is a tool that uses a convex lens as the eyepiece and objective lens because
it can form a magnified image. Instead concave lens is usually used as a spectacle lens
for nearsightedness patients because the distance of image formed is closer than the
distance of the object. Just like a mirror, the image formation by lenses also can be
conveniently determined with ray diagrams. Therefore, this research aims to create a
simulation of ray diagrams in the process of image formation by lenses and their
applications using Macro Visual Basic in Microsoft Powerpoint. Lenses applications
made are the microscope simulation and the combined lenses which consist of a
concave-convex lens combined and a convex-concave lens combined. This research
begins with the preparation of material on the image formation by lenses and their
application. Second, made an appearance on the program which consists of a
PowerPoint slide, CommandButton, Textbox, OptionButton, Shape and others then
wrote programs in Macro Visual Basic procedure to active the command to do. Input of
this simulation can be given in the form of object distance, focal point distance of lens
and height of objects. The data will be processed according to commands contained in
macros procedure to result image distance, image height, image magnification and the
properties of image. In addition to result the data, media can also provide output in the
form of ray diagrams simulation on the image formation that can be used to assist
students understanding the image formation by lenses.
Keywords: Lens; Macro Visual Basic; Microsoft PowerPoint
47
August 19-20, 2015
EDU-18
SUSAN LOUCKS-HORSLEY LEARNING MODEL IN LIGHT
POLLUTION THEME: A NEW TAXONOMY FOR SCIENCE
EDUCATION
Winny Liliawati, Judhistira Aria Utama, Hayyah Fauziah
Department of Physycs Education
Abstract
Integrated learning at Junior High School is the demands of the curriculum in Indonesia
and NSTA (National Science Teachers Association) recommended that science teachers
in the elementary and intermediate schools should have interdicipliner preferences in
science. However, integrated learning still has not been implemented optimally. This
study designing and applying integrated learning with Susan Loucks-Horsley model in
light pollution theme.It can showed how the students achievements based on new
taxonomy of science education with five domains, there are knowing & understanding,
science process skill, creativity, attitudinal and connecting & applying. This study using
mixed methods with concurrent embedded design. The subject is second grade of
intermediate school in Bandung consist of 27 students. The Instrument that used are 28
questions test mastery of concepts, observation papers and test of moral dilemma. This
results showed that integrated learning with model Susan Loucks-Horsley (SLH) was
able to increasing students achievement and invest positive characters on light pollution
theme learning. The data results are; the average gain normalized of knowing and
understanding domain reached 22 % with low category, the average percentage of
science process skill domain reached 78 % with good category, the average percentage
of creativity domain reached 73% with good category, the average percentage of
connecting domain reached 71 % and the average percentage of attitudinal domain is
over 75% in moral knowing and moral feeling.
Keywords: Susan Loucks-Horsley Learning Model, A New Taxonomy of Science
Education
48
Book of Abstract |
EDU-19
The Application of Traditional Game Rorodaan as Learning Tool in Physics
Subject: Force and Movement to Improve Student Motivation and Learning
Results
Okky Fajar Tri Maryana 1), Ratih Rizki Retinofa 2),
1) Physics Department, Faculty of Mathematics and Natural Science,
Jl. Ganesha 10, Bandung 40132, Jawa Barat
2) Proffesional Program of Education Pychology, Faculty of Psychology,
Universitas Indonesia
Jl. Kampus Baru, Depok, Jawa Barat
Abstract
Nowadays, active learning method in physics learning has been developed in attempt to
increase student motivation and comprehension. Including local values into active
learning method has become national curriculum demand in Junior High School.
Rorodaan is one of traditional games from West Java. We used this traditional game as a
learning tool in force and movement subject. Classroom Action Research (CAR) was
conducted to figure Rorodaan effectiveness in improving student motivation and
comprehension showed by comprehension test scores. Student interest and motivation
was valued by questionnaire and ranged from negative (not interesting and motivating at
all) to positive (very interesting and motivating). From this research, most of students
tended to show positive interest and motivation to engage force and movement learning
(92.31 %). They also showed willingness to perform achievement behavior. Mean of
comprehension test score increased 10.44% after Rorodaan was used a learning tool.
Keywords: active learning, Physics, force and movement, Rorodaan, Classroom Action
Research (CAR), traditional game, West Java
49
August 19-20, 2015
EDU-20
Combining Real And Virtual Experimentation To Enhance Students
Conceptual Understanding Of Electric Circiuits And Sciences Process Skill
Duden Saepuzaman *), Ida Kaniawati, Setiya Utari, Saeful Karim
Physics Department Indonesia University of Education
*) dsaepuzaman@upi.edu
Abstract
This study aims to determine the comparative of conceptual Understanding
enhancement and sciences process skill of student who learn by inquiry learning using
Real-Virtual Experiment (RVE), Virtual-Real Experiment ( VRE), a Virtual Experiment
(VE) , and Real-Experiment (RE). The study use for groups of samples, the control
group treated by inquiry Learning using real experiment (RE) and the three
experimental group treated to each inquiry learning using Real-Virtual Experiment
(RVE as 1st Experimental Group), Virtual-Real Experiment ( VRE as 2nd Experimental
Group), a Virtual experiment (VE ias 3rd Experimental Group). The research method
using a quasy experimental design with comparison group design. The result of
comparative analysis of conceptual Understanding enhancement (N-gain) showed a
significant difference for all groups ( ANOVA, Sig=0.00 < α=0.05). RVE group shows
the highest average value N-gain and statistically show a significance of difference
compared to the other three groups. The same result happened on the comparison of
students sciences process skills enhancement. RVE group shows highest science process
skill mean value N gain and statistically show a significance if compared to the other
groups. The other result show that the average N-gain scince process skills VE group
did not different significantly from the PE group. Based on analysis and statistical test
concluded that the inquiry Learning model using combination of Real-Virtual
Experiment can significantly further improve the mastery of science concept and
process skills of high school student compared with the inquiry learning model using
Virtual-Real Experiment , Virtual Experiment, and Real experiment.
Keywords: Inqury Learning model using Real-Virtual Experiment, Science Process
Skills, Conceptual Understanding Of Electric Circiuits.
50
Book of Abstract |
EDU-21
Reconstruction Learning’s of Motion Objects In One Dimension to Improve
Higher-Order Thinking Skills and Concepts Construct Physics Students
Teacher Physics Candidates
Saeful Karim, Duden Saepuzaman *)
Physics Department Indonesia University of Education
(a*) dsaepuzaman@yahoo.com
Abstract
Learning in the course not only focuses on mastery of concepts students but also should
focus on the learning process . Learnig process should facilitates the thinking skills of
students who are able to construct concepts, especially learning process at the University
that produce teacher candidates. Based on observations and interview some physiscs
teachers found that the teachers teaching style in the classroom mostly reproduce habits
of the lecture style in University. So very important the learning process that is able to
facilitate a variety of thinking skills teacher candidates and provide real models
(modelling) how learning physics applied in the classroom. It is hoped the process of
thinking and constructing the concept experienced physics student teachers can provide
supplies as part of the competencies that must be owned by a teacher. Based on the
results of the evaluation of the learning process shows that the response of students to
lecturers teaching style is generally still low. This study focuses on the reconstruction
learnings of objects motion in one dimension to improving high order thinking skills
and construct physics concepts students as teacher candidat. The product of this research
is the operational design and evaluation of learning. The effectiveness of applied
learning can found from evaluation of learning . Based on data that the achievement
students on the class that implements the reconstruction of a new learning design,
obtained the achievement of learning outcomes better than learning to use construction
previous learning. The intended learning outcomes are higher-level thinking skills of
students and construction concept. The questionnaire show the student gave a positive
response on the application of learning reconstruction.
Keywords: Reconstruction of learning, higher order thinking skills, construction
concept
51
August 19-20, 2015
EDU-22
Implementing a “Choose Your Own Adventure” Method in Teaching Basic
Concepts of Sound to Primary-School Teacher Candidate Students
Regina Lichteria Panjaitan
Primary-School Teacher Education Study Program
Indonesia University of Education
Abstract
The grasps of basic physics of sound of primary-school teacher candidates were
examined. Ninety students of primary-school teacher candidate program participated in
this study. The experimental group was introduced to the basic concept of sound
teaching with “Choose Your Own Adventure” method using daily-life stories related to
sound; and the control group received the same material with conventional lecture
method. The result shows that the students taught with “Choose Your Own Adventure”
method got better understanding on basic concepts of sound than students taught with
conventional lecture method. The finding suggests that “Choose Your Own Adventure”
method may be able to enhance students’ mastery on science especially on basic
concepts of sound.
Keywords: Choose Your Own Adventure, teaching method, sound, primary-school
teacher candidate
52
Book of Abstract |
EDU-23
Why always alcohol and mercury thermometer,can we make it from cofee?:
A Scientific investigation learning design for seventh grade Indonesian
Students
Dadi Rusdiana, Selly Feranie, Setya Utari, Duden Saepuzaman
Physics Department IndonesiaUniversity of education (UPI)
Abstract
Most of learning thermometer properties at seventh grade is just transmission of
knowledge from teacher to students and lack of using mathematical representation and
scientific investigation done by students to construct the concept or solve problem. we
have implemented a scientific investigation learning design for seventh grade physics
classroom. Teacher facilitate students to contruct the knowledge using mathematical
representation by doing scientific investigation to solve problems. Learning to represent
concepts using mathematics presents a considerable challenge for students to understand
and for teachers to instruct. In this paper we describe learning design including step by
step teacher instructional strategies, learning materials and findings how students can
construct the concept and solve the problem. Most of the student can construct the
concept and solve problem above by answering guided questions correctly based on
actual data from fact/phenomena. But they felt trouble when analyze slope analysis
because they haven’t got this mathematical content. And last we present
recommendations and suggestions for improvements in future implementation
Keywords: Scientific Investigation, Concept construction
53
August 19-20, 2015
EDU-25
Development Of Learning Tools Based On Multi-Representation
Fundamental Physics
Choirul Huda*, Joko Siswanto, Affandi Faisal Kurniawan, Harto Nuroso
Physics Education Studies Programs Universitas PGRI Semarang
*) email: choirulhuda581@gmail.com
Abstract
The specific objective of this study is to design multi-representation learning tools that
can improve the problem solving skills of students in fundamental physics course. This
study uses the R & D (research and development). Multi representations for learning
and teaching into something that is potentially generate diverse, will create an
atmosphere of learning with the active role of the full potential of students, activates the
ability of learning (learning ability) students, both minds-on and hands-on making
learning more meaningful physics. The research was conducted on subjects Physics at
the Universitas PGRI Semarang. As for the research carried out in the second semester
of the academic year 2014/2015. This study refers to one group pretest-posttest design.
Data collection methods include observation sheets, and Problem Test. The calculation
result obtained by value t-calculate for 27.35 with a t-table of 2,020 and df = 25, α =
0.025. Application of Scientific learning tools based on multi-representation during the
learning process is significantly affect the the student mark. There is an increase in
results and posttest prestest average is 23.45 into 76.15.
Keywords: fundamental physics course, learning tools, multi-representation
54
Book of Abstract |
EDU-28
Development of Representational Conceptual Evaluation in First Law of
Thermodynamics
Syakti P. Sriyansyah a*) and Andi Suhandi b)
(a) School of Postgraduate Studies, Indonesia University of Education,
Jalan Setiabudhi No.229, Bandung, 40154, Indonesia
*syaktiperdana@gmail.com
(b) Department of Physics Education, FPMIPA, Indonesia University of Education,
Jalan Setiabudhi No.229, Bandung, 40154, Indonesia
Abstract
Abstract. As part of an ongoing research to investigate student consistency in
understanding first law of thermodynamics, a representational conceptual evaluation
(RCE) has been developed to assess student conceptual understanding, representational
consistency, and scientific consistency in introductory physics course. Previous physics
education research findings were used to develop the test. RCE items were designed as
an isomorphic multiple-choice test with three different representations concerning the
concept of work, heat, first law of thermodynamics, and its application in the
thermodynamics processes. This instrument is also intended to help measure the
effectiveness of the learning process in the concept of first law of thermodynamics.
Here, we present preliminary measures of the validity and reliability of the instrument,
including the classical test statistics.
Keywords: physics education research, representational consistency, scientific
consistency, first law of thermodynamics
55
August 19-20, 2015
EDU-29
The Moon Topography Model as an Astronomy Educational Kit for Visual
Impaired Student
Yudhiakto Pramudya, Fitri Nur Hikmah
Prodi Magister Pendidikan Fisika Universitas Ahmad Dahlan
Pusat Studi Astronomi Universitas Ahmad Dahlan
Abstract
The visual impaired students need science educational kit at the school to assist their
learning process in science. However, there are lack of the kit especially on the topic of
astronomy. To introduce the structure of the moon, the moon topography model has
been made in circular shape only shown the near side of the moon. The moon
topography module are easy to be made since it was made based on low cost material.
The expertise on astronomy and visual impaired media gave the 76.67% and 94% ideal
percentage, respectively. The visual impaired students were able to study the moon
crater and mare by using the kit and the braille printed learning book. They also showed
the improvement in the material understanding skill.
Keywords: astronomy education, visual impaired, moon topography
56
Book of Abstract |
EDU-30
Realizing a Deflection-type DC Bridge-based Thermometer under Projectbased Learning Approach
Ramadhiansyah, Thariq Warsahemas, Ahmad Idris Nurul Ulum, Elfi Yuliza,
Khairurrijal
Departement of Physics, Faculty of Mathematics and Natural Sciences,
Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia
Abstract
In addition to conventional learning, project-based learning (PBL) helps students to
develop skills and to become more engaged in learning as they have a chance to solve
problems that closely resemble real life. As the name suggests, PBL is a model that
organize learning around projects. In this paper, the project that will be presented by a
small group of students is about making a temperature measuring instrument using
simple dc bridge circuit. With the help of a tutor, they have followed this series of steps:
1. Analyze and define the problems and objectives of the project, 2. Identifyand
organize the knowledge needed for the project, 3. Conduct the research individually
then continue to meet to share research findings and conduct additional research as
needed, 4. Merge research findings and ideas then create a design based on it, 5. Create
the designed instrument, 6. Do various tests and calibration to the instrument, 7. Perfect
the instrument and present it, and 8. Do evaluation of what they have learnt from the
process of the project. With this series of steps, the students become easier to understand
the lecture that have been given. As a result, the instrument works as intended and the
use of the bridge circuit as a variable conversion element has been realized.
Keywords: Project-based learning, Deflection-type DC bridge, Variable conversion
elements, Thermometer
57
August 19-20, 2015
EDU-31
Implementing Project-based Learning in Making a Weight Meter
Wibias Muliawan, Wildan Syahrun Nahar, Chris Evan Sebastian, Elfi Yuliza,
Khairurrijal
Abstract
Project-based learning can make students develop skills and become more engaged in
learning because they can solve problems that are met in real life through a project. The
project was a weight meter using a Wheatstone bridge circuit, which was realized by a
small group of students. They worked together with the help of a tutor. In making the
weight meter, the students have done the following steps: 1. Doing some pre-research
tasks, 2. Searching literatures and reviewing them, 3. Forming and testing hypothesis, 4.
Breaking down the tasks and appointing the person in charge for each task, 5.
Identifying further learning needs to complete each task, 6. Doing group discussion,
each student gives a progress report, 7. Discussion with tutor, 8. If the tutor gives some
advanced tasks to the students, repeating step 4-7, 9. Completing the project and the
final report as well as presenting it.
Keywords: Project-based learning, Wheatstone bridge, Weight meter
58
Book of Abstract |
EDU-32
Theoretical Explanation of Rubber Band Heat Engine
Nurhidayah Muharayu, Widayani, Khairurrijal
Master of Teaching Physics Program, Institut Teknologi Bandung
Abstract
Rubber band heat engine is a heat engine that is easily applied in the experiment.
However, to get the data from the experimental results are required a formulation that is
able to accommodate the data, so that it will be obtained an accurate value. We show
and analyze the variables thermodynamic formulation of rubber band heat engine to
accommodate the experimental data, so that the equation of state, heat, work and
efficiency are not only studied theoretically but also experimentally. The engine’s
efficiency is calculated for an idealized but reasonable model. The engine’s work cycle
is compared with a Carnot cycle, and it is shown to be equivalent to the Carnot cycle as
an extremely ideal limiting case. We measured the force law parameters for a working
model, and we obtained the efficiency of this model.
Keywords: Thermodynamics, Rubber Band Heat Engine
59
August 19-20, 2015
EDU-33
Thermodynamical and Mechanical Analyses of a Thermomagnetic Rotary
Engine
Dinar Maftukh Fajar, Siti Nurul Khotimah, and Khairurrijal
Abstract
A heat engine in magnetic system had three thermodynamic coordinates: magnetic
intensity (H), total magnetization (M), and temperature (T), where the first two of them
were respectively analogous to that of gaseous system: pressure (P) and volume (V).
Consequently, Carnot cycle that constituted the principle of a heat engine in gaseous
system was also valid on that in magnetic system. A thermomagnetic rotary engine was
one model of it that was designed in the form of a wheel made of ferromagnetic wires.
One point in the wheel located in magnetic field was heated by a heat source (Q). When
the heating had reached Curie temperature, the point would be shifted by other points as
consequence of the attractive magnetic force since it had changed into paramagnetic.
The shift made the wheel rotated and produced a rotational work (W). The study was
aimed to describe the thermodynamic and mechanical analysis of a thermomagnetic
rotary engine, and calculate the efficiencies. In thermodynamic view, the system was
assumed in idealized condition and was analyzed using Carnot principle. The
thermodynamic processes were isothermal demagnetization, adiabatic demagnetization,
isothermal magnetization, and adiabatic magnetization. The values of thermodynamic
efficiency depend on temperature difference between hot and cold reservoir. In
mechanical view, a rotational work was determined through calculation of moment of
inertia and average angular speed. The heat received by system was determined through
calorimetry experiment. The value of mechanical efficiency was calculated from ratio
between rotational work and heat received by system. From thermodynamic and
mechanical efficiency, it also obtained exergetic efficiency that stated the performance
quality of the engine. It was obtained from ratio between mechanical and
thermodynamic efficiency
Keywords: thermomagnetic rotary engine, Carnot cycle, ferromagnetic materials
60
Book of Abstract |
EDU-34
Improving Understanding of Deflection-Type Bridge Measurement Using
Research-Based Learning: Implementation in Soil Moisture Meter
Elfi Yuliza 1), Muhammad Sainal Abidin 2), Muhammad Miftahul Munir 2,a),
Mikrajuddin Abdullah 1,b) and Khairurrijal 1,c)
1) Physics of Electronics Material Research Division,
2) Theoretical High Energy Physics and Instrumentation Research Division,
a)
miftah@fi.itb.ac.id, b)din@fi.itb.ac.id, c)krijal@fi.itb.ac.id
Abstract
It is clear that the quality of education is directly related to the quality of teachers and
the teaching methods. One of the teaching methods that can improve the quality of
education is research-based learning (RBL) method. In this method, students act as the
center of learning while teachers become the guides that provide direction and advice.
RBL is a learning method that combines cooperative learning, problem solving,
authentic learning, contextual case study and inquiry approach discovery. The main goal
of this method is to construct a student that can think critically, analyze and evaluate
problems, and find a new science from these problems (learning by doing). In this paper,
RBL is used to improve the understanding about measurement using deflection-type
Bridge that is implemented in the determination of ground water changes. In general,
there are three stages that have been done. Firstly the exposure stage, then the
experience stage and lastly the capstone stage. The exposure stage aims to increase the
knowledge and the comprehension of student about the topic through understanding the
basics concepts, reviewing the literature and others. The understanding gained in the
exposure stage is being used for application and analysis at the experience stage. While
the final stage is the publication of research results both verbally and in writing. Based
on the steps that have been conducted, it can be showed that deflection-type Bridge can
be utilized in soil moisture meter.
Keywords: Research-based learning, deflection-type Bridge, soil moisture meter
61
August 19-20, 2015
EPS-01
Complexity Analysis of Peat Soil Density Distribution
Joko Sampurno1, Fourier Dzar Eljabbar Latief2, Wahyu Srigutomo2
Departement of Physics, Natural Science Faculty, Tanjungpura University
Departement of Physics, Bandung Technology of Institute
Abstract
This research discussed about the application of fractal analysis method on the
distribution of peat soil density. Object of this study were peat soil samples which were
taken on the area of Pontianak, West Kalimantan. The parameter which was investigated
was the distribution of the density in microscopic scale. The peat samples were made in
a cube form (with size of 2cm x 2cm x 2cm). The samples were then scanned using a
micro computerized tomography (μCT Scanner) to obtained 3D images in size of 220 x
220 x 220 pixels. From the 3D images, five 2D segments were taken, which were
considered as a representation of the structure, from the bottom to the top sequentially
(L1 - L5). The size of each layer was 220 x 220 pixels. The scan images indicated that
the density distribution of peat soil was not homogeneous. The results of data processing
indicated that the density distribution of peat soil segments behaved as fractal, with
dimensions varied from1.26 to 1.37. The range of the fractals dimension indicated that
the density distribution of peat soil was persistent. Level of density of the peat soil
segments which was varied from the the most heterogeneous to the most homogeneous
was represented by L5, L1, L4, L3 and L2 in a series. Qualitatively, the level of density
variation of all segment of peat soil possessed weak anisotropic properties.
Keywords: Complexity, Peat soil, Fourier Analysis method
62
Book of Abstract |
EPS-02
Temporal Characteristic of the Methane (CH4) Emission Observed in Bukit
Kototabang, West Sumatra during 2004 - 2013
Deni Okta Lestari, Erni and Iskhaq Iskandar
Program Pascasarjana Ilmu Lingkungan, Universitas Sriwijaya
Jurusan Fisika, FMIPA, Universitas Sriwijaya
Abstract
Methane (CH4) emission contributes about 20% to the global radiation forcing leading
to impact on global warming. It was estimated that CH4 emissions continue to increase
from year to year. This study evaluates the CH4 emission observed in the Bukit
Kototabang, West Sumatra during January 2004 to December 2013. It is shown that the
CH4 emission indicates an increasing trend up to 1.83% during the period of January
2004 to December 2013. It is also shown that the increasing trend of the CH4 emission
has a seasonal variation. The lowest CH4 emission was observed in boreal summer
(June-July-August) season, while the highest CH4 emission was observed in boreal
winter (December-January-February) season. The analysis suggests that the reaction of
CH4 with rainfall, the influence of agricultural activity and the latitudinal movement
Inter-tropical Convergence Zone (ITCZ) causes the seasonal variations of CH4
emission. Furthermore, the analysis demonstrated that the radiation forcing emitted by
the CH4 emission in the Bukit Kototabang is 0.4979 ± 0.0041 Wm-2. The results from
this study suggest that the CH4 emission is one of a key factor for the development of
adaptation and mitigation strategy to the global warming
Keywords: Bukit Kototabang, CH4 emission, global warming. Radiation forcing
63
August 19-20, 2015
EPS-04
Spatio-temporal variations of sea surface temperature in the Banda Sea
Iskhaq Iskandar, Wijaya Mardiansyah, Dedi Setiabudidaya, Muhammad Irfan and
Pradanto Poerwono
Jurusan Fisika, Fakultas MIPA, Universitas Sriwijaya, Jl. Raya Prabumulih, Km. 32,
Inderalaya, OI, Sumatra Selatan, INDONESIA - 30662
Pusat Studi Geo-hazard dan Perubahan Iklim, Universitas Sriwijaya, Jl. Raya
Prabumulih, Km. 32, Inderalaya, OI, Sumatra Selatan, INDONESIA – 30662
Pusat Penelitian Lingkungan Hidup (PPLH), Universitas Sriwijaya, Palembang,
Sumatra Selatan, INDONESIA – 30139
Abstract
Spatial and temporal variations of sea surface (SST) in the Banda Sea are studied for the
period of June 2002 – May 2008. An empirical orthogonal function (EOF) analysis has
been applied to an optimum interpolation SST (OISST) having spatial resolution of
0.25° and temporal resolution of 1 day. The results revealed that the four EOF modes
account for 53.1% of the total SST variance. The first EOF mode, which accounts for
33.2% of the total variance, revealed the east-west SST pattern in the Banda Sea. This
indicates 180° out of phase temporal variability between the eastern and the western
parts of the Banda Sea. The second and the fourth modes explain 9.6% and 4.6% of the
total variance respectively. Both two modes show the southeast-northwest spatial
pattern. Meanwhile, the third mode accounting for 5.4% of the total variance indicates
that the high SST variation is concentrated in the central Banda Sea. In addition, the
corresponding principal component time series of the first mode revealed robust
seasonal variability. The southeast monsoon (June – September) season is characterized
by very low SST (26°C) occupied the Banda Sea region. Meanwhile, during the
northwest monsoon (November – February) season, high SST (30°C) was observed in
the Banda Sea region. The principal component time series of the second and the fourth
modes, on the other hand, showed inter-annual variations. It is hypothesized that the
Indo-Pacific climate modes (e.g. ENSO and Indian Ocean Dipole) influence the SST in
the Banda Sea on the inter-annual timescale. Meanwhile, the principal component time
series of the third mode shows intraseasonal variation, which may related to the local
air-sea interaction in the Banda Sea.
Keywords: Banda Sea, Empirical Orthogonal Function (EOF) analysis, northwest
monsoon, sea surface temperature, southeast monsoon
64
Book of Abstract |
EPS-05
Buckling and Earthquake Sources In The Subduction Zone
Lilik Hendrajaya1,a) and Jaya Murjaya2)
1) Department of Physics, Faculty of Mathematis and Natural Sciences
2) Agency of Meteorology, Climatology and Geophysics
a)Corresponding author: lilik.hendrajaya@gmail.com
Abstract
Tectonic collision between continental and oceanic plates produced subduction zone.
Buckling across island arc in the continental plate perform sinc type folding from the
mountains peak to the basin (Turcotte and Schubert, 1982). Authors (2011) identified
the existence of buckling along island arc which peaks at volcanoes, morely has sine
type folding. The peaks of buckling are weak extension zone, where accumulated
energy can be released through earthquakes and the zone can be penetrated by magma to
produce volcanoes. The phenomenon of seismic velocity discontinuities along depth in
the upper mantle down to 1000 km (i.e. 150 km, 240 km, 400 km, 520 km, 650 km,...)
may be interpreted as buckling along subducting slab in more sine type . The
discontinuities correspond to extension zones where the buckling has peaks and also to
the areas of "stick slip" sliding of two consecutive major mineral phases in the
subducting oceanic and overriding continental plates. Following the all buckling
patterns, research can be directed to do more details the explaining the presence of
earthquake in the inner region of continental plate and very deep earthquakes occur at
certain depths.
Keywords: Topic: Earth and Planetary Sciences
65
August 19-20, 2015
EPS-07
CYCLONE RAINFALL STRUCTURE AFFECTING INDOCHINA
PENINSULA AND ITS RELATION TO FLOOD EVENTS IN LOWER
MEKONG RIVER BASIN (LMB)
Rattana CHHIN, Nurjanna Joko Trilaksono, Tri Wahyu Hadi
Meteorology Department, Earth Science Study Program, Faculty of Earth Science and
Technology (FITB), Bandung Institute of Technology (ITB)
Abstract
Indochina Peninsula is located in between Bay of Bangal and South China Sea (SCS).
So this region affected frequently from Tropical Cyclones (TCs) form in North Indian
Ocean (NIO), South China Sea (SCS), and North West Pacific Ocean (NWP). These
TCs land or approach Indochina regions every year, and they bring along heavy rainfall
which produce flood to river basins located inside these regions, mainly Lower Mekong
Basin (LMB). Therefore, this research aim to explore the structure of this rainfall
source, comparison of rainfall structure produced by cyclone formed in North Western
Pacific, South China Sea (SCS) and Indian Ocean, and studies the relation of this
rainfall to flood events in LMB. Principle Component Analysis (PCA) will be used to
see the dominant rainfall area produced from those TCs. Spatial and Temporal
movement of rainfall from those TCs will be analyzed. The preliminary results show
that the dominant TCs rainfall area is located in eastern coast of Indochina Peninsula in
vicinity of central Vietnam. Moreover, the cyclone with source in South China Sea
(SCS) produce more rain rate than the other two sources (mentioned above) and
dominant rain rate located in central Vietnam’s coast line and surrounding area. This
high rain rate happen mostly when the cyclone develop to Tropical Storm (TS) and
Tropical Typhoon (TY) phase.
Keywords: TC, Indochina Peninsula, LMB, PCA
66
Book of Abstract |
EPS-08
Landslide Hazard and Risk Assessment For Ambon City Using Landslide
Inventory and Geographic Information System
Matheus Souisa, Lilik Hendrajaya, Gunawan Handayani
Department of Physics, Faculty of Mathematics and Natural Sciences, Institute of
Technology Bandung, Indonesia
Abstract
Ambon Island is a volcanic islands arc and included in the territory of the archipelago of
small islands are associated with subduction zones that have a degree of high
vulnerability to natural disasters, such as erosion and landslides on the slopes of certain
conditions. Landslides that occur various in the city of Ambon, usually occurs during
the rainy season so that the impacts that occur not only occurs on site but also off site
with amount of large sedimentation. This paper presents the application of digital image
analysis techniques and tools Geographic Information Systems to describe the degree of
landslide hazard and risk areas in locations Ambon City, Moluccas. The cause of the
landslide is analyzed through various thematic layers attribute data for the study area.
Landslide hazard zonation assessment is done by using historical data, while the
landslide risk analysis is done by using the results of landslide hazard assessment and
socio-economic factors by using geospatial models. The risk assessment of landslides
can be used to estimate the risk to the population, property and infrastructure. The study
results in the form of a map of landslide hazard and the risk of landslides that act to
support urban spatial planning based on disaster mitigation.
Keywords: Landslide inventory, GIS, landslide hazard maps, disaster mitigation
67
August 19-20, 2015
EPS-11
SIMULATION OF TWO PHASE FLUID FLOW WITH VARIOUS KINDS
OF BARRIERS USING LATTICE BOLTZMANN METHODE
Imam Wijaya, Acep Purqon
Departemen Fisika, Institut Teknologi Bandung,
Jl. Ganesa 10 Bandung 40132, Indonesia
Abstract
Multiphase fluid flow in a pore medium is a problem that is very interesting to study.
The flow of the fluid can experience some of the barriers / obstacles like the objects in
the medium of the flow. The existence of such barriers can certainly inhibit the flow rate
of the fluid. Barriers that have different degrees of roughness would give different effect
to the flow rate of the fluid. The study was conduct to determine the roughness influence
on the profiles rate of velocity on the simulation using LBM. The simulation design is
by varied the fluid resistance ranging from barriers that have a high roughness (boxes)
and barriers that have a low roughness (circles and ovals). The relationship of varied
roughness of barriers to fluid velocity over the simulation time and to velocity vectors
from every position were plotted into a graph. The results from the simulations show
that the barriers with a high degree of roughness such as boxes will provide the flow rate
profile of the fluid that is faster than the flow rate profile of the fluid with a barrier that
has a lower degree of roughness such as circles and ellipses.
Keywords: fluid, multiphase fluid, LBM
68
Book of Abstract |
EPS-12
Fluid Imbibition Effects on the P Waves Velocities and Amplitudes of
Ngrayong Sandstone
Thaqibul Fikri Niyartama a*,c), Umar Fauzi a), Fatkhan b)
a) Physics of Earth and Complex Systems, Faculty of Mathematics and Natural
Sciences, Bandung Institute of Technology,
Jalan Ganesha 10, 40132 Bandung, Indonesia.
*thaqibul@yahoo.com
b) Geophysics Engineering, Bandung Institute of Technology,
Jl. Ganesha 10, 40132 Bandung, Indonesia.
c) Department of Physics, UIN Sunan Kalijaga, Jl. Marsda Adisucipto 1,
Yogyakarta, 55283, Indonesia.
Abstract
How to modeling fluid flow in reservoirs has become an important role in the seismic
interpretation of reservoir fluid recovery. Monitoring fluid path becomes accurate if
reservoir modeling can provide two phase flow information in porous media on the rate
at which movement takes path. To study two phase flow phenomena in mesoscale, water
imbibition have been implemented on dry sandstone of Ngrayong formation. Ultrasonic
measurements conducted on Ngrayong sandstone at varying water saturation (Sw) to
establish the variations of P wave velocity to degree of water saturation. Sandstone
sample has porosity ranges 37%, 38%, and 39% and has been dried at a temperature of
120oC for 2 times 24 hours to make sure in air-dry conditions. Based on XRF data and
the thin section samples of Ngrayong outcrop sandstone formations, there is a
dominance of Si and Fe compound, quartz mineral, feldspar, matrix and cement. Our
results confirm that P wave velocity versus Sw curve have same trend to the effects Sw
variations and the changes of amplitude and P wave velocity indicate the present of
water.
Keywords: Imbibition, ultrasonic, Ngrayong Sandstone
69
August 19-20, 2015
EPS-13
Analysis of Hubbert Model to Estimate the peak of oil production
Ria Dwi Izahyanti, Lilik Hendrajaya
Department of Physics, FMIPA, ITB
Abstract
Old publication of Hubbert (1956), show that hubbert peak is a model which can use to
predict the rate and peak of oil production. This method find out the time that
production will start declining, the number of ultimate remaining reserve, the time when
production from proven reserve will be over, and the time when production from
potential reserve will be over. The function of hubbert model is very useful if the daily
production to predict a production behavior. The curve, however, can be used in the
production rising period, if then is decided to play with constant production rate. Some
curve manipulation can be applied to know how long the lifetime of the field can be
extended.
Keywords: hubbert model, production rate
70
Book of Abstract |
EPS-14
Decreasing groundwater quality at Cisadane riverbanks: groundwatersurface water approach
Irawan, DE.1, Kuntoro, AA.2, Julian, MM.1, Puradimaja, DJ.1, and Yeni, D.3
1. Faculty of Earth Sciences and Technology, ITB
2. Faculty of Civil and Environmental Engineering, ITB
3. Agency of Environments, Tangerang Regency
Abstract
The decreasing of groundwater quality has been the major issue in Tangerang area. One
of the key process is the interaction between groundwater and Cisadane river water,
which flows over volcanic deposits of Bojongmanik Fm, Genteng Fm, Tuf Banten, and
Alluvial Fan. The objective of this study is to unravel such interactions based on the
potentiometric mapping in the riverbank. We had 60 stop sites along the riverbank for
groundwater and river water level observations, and chemical measurements (TDS, EC,
temp, and pH). Three river water gauge were also analyzed to see the fluctuations. We
identified three types of hydrodynamic relationships with fairly low flow gradients:
effluent flow at Segmen I (Kranggan - Batuceper) with 0.2-0.25 gradient, perched flow
at Segmen II (Batuceper-Kalibaru) with gradient 0.2-0.25, and influent flow at Segmen
III (Kalibaru-Tanjungburung) with gradient 0.15-0.20. Such low flow gradient is
controlled by the moderate to low morphological slope in the area. The gaining and
losing stream model were also supported by the river water fluctuation data. TDS and
EC readings increased more than 40% from upstream to downstream. At some points
the both measurements were two times higher than the permissible limits, along with the
drops of pH values at those areas. This study shows the very close interaction between
Cisadane river water and groundwater in the riverbank. Therefore the authorities need to
be managed the areas with a very strict regulations related to the small and large scale
industries located near by the river.
Keywords: groundwater-river interaction, water quality, Cisadane
71
August 19-20, 2015
EPS-15
3D flow patterns at the river–aquifer interface - a case study at
Cikapundung watershed
Darul A., Irawan, DE., Pratama, A., and Prabowo, K.
Faculty of Earth Sciences and Technology
Abstract
The three-dimensional groundwater flow patterns in the riverbank of Cikapundung were
investigated and are discussed in this paper. The observed groundwater level gradients
are highly dynamic and respond very quickly to changes in the river water levels. A
variably saturated groundwater model was calibrated to the data to describe the complex
dynamics of flow in the riverbank. The model results suggest that short-term (6–48 h)
fluctuations of river water levels cause variations in the exchange flow rates from −35
l/s to 82 l/s. The highest rates occur during brief infiltration after rapidly rising river
water levels. Simulations of different scenarios indicate that riverbank clogging will
decrease the exchange fluxes by up to 80%, while clogging of both riverbank and
riverbed essentially stops the flow exchange, due to the thin layers of clays and lavas at
various spots. The groundwater model is also used to simulate the transport of a
conservative tracer. The variation of river water levels over time is shown to increase
the extent of the active river–aquifer mixing zone in the riverbank. These dynamic
factors significantly enhance the dilution of conservative tracer concentrations in this
zone.
Keywords: groundwater-river interaction, 3D flow, Cikapundung
72
Book of Abstract |
EPS-16
Two-dimensional Magnetotelluric Modeling using Vector Finite Element
Method and its Application to Sumatran Fault Zone
E. Pramono S1, Nurhasan1, D. Sutarno1, Y. Ogawa2 and R. Prihantoro1
1 Physics Department, Bandung Institute of Technology, Jalan Ganesha No. 10
Bandung 40132, Indonesia.
2 Volcanic Fluid Research Center, Tokyo Institute of Technology, Tokyo, Japan
Abstract
In recent years, two-dimensional Magnetotelluric (MT) modeling is still developed to
find good accuracy and resolution. Several techniques of the modeling have been
developed such as finite difference, finite element and integral techniques. In this study,
we applied the finite element method to Magnetotelluric modeling using edge-element
(vector) approach. The use of the edges of the element as a vector basis can overcome
the occurrence of nonphysical solutions that usually faced by scalar (node based) finite
element method. The electric or magnetic fields located in the corner of the cell were
calculated to find apparent resistivity and phase at the surface. The simple synthetic
models and standard models from COMMEMI (model 2D-0 and 2D-1) were used to
verify the accuracy of the program. Using observed MT data obtained from Sumatran
Fault System, we applied this element method to interpret resistivity structure of the
Sumatran fault.
Keywords: magnetotelluric, modeling, 2D structure, vector element
73
August 19-20, 2015
EPS-18
1-D and 2-D Occams Inversion of Magnetotelluric Data Applied in VolcanoGeothermal Area in Central Java, Indonesia
Elsi Ariani and Wahyu Srigutomo
Physics of Earth and Complex System, Fac. of Mathematics and Natural Sciences,
Abstract
One-dimensional and two-dimensional magnetotelluric data inversion were conducted
to reveal the subsurface resistivity structure beneath the eastern part of a volcano in
Central Java, Indonesia. Fifteen magnetotelluric sounding data spanning two lines of
investigation were inverted using Occam’s inversion scheme. The result depict that
there are exstensively conductive layer (2-10 ohm meter ) below the volcanic
overburden. This conductive layer is interpreted as the clay cap resulted from thermal
alteration. A higher resistivity layer (10-80 ohm meter ) underlies the clay cap and is
interpreted as the reservoir whose top boundaries vary between 1000 m above and 2000
m below sea level.
Keywords: Magnetotelluric, Occams Inversion, Geothermal
74
Book of Abstract |
EPS-19
CSAMT Data Processing with Source Effect and Static Corrections,
Application of Occam’s Inversion, and Its Application in Geothermal
System
Husnul Hamdi, Arga M. Qausar, and Wahyu Srigutomo
Physics of Earth and Complex System, Faculty of Mathematics and Natural Sciences,
Bandung Institute of Technology, Indonesia
Abstract
CSAMT is a frequency-domain electromagnetic sounding technique which uses a fixed
grounded dipole as an artificial signal source. Measurement of CSAMT with finite
distance between transmitter and receiver caused a complex wave. The shifted of the
electric field due to the static effect caused elevated resistivity curve up or down and
affects the result of measurement. The objective of this study was to obtain data that
have been corrected for source and static effects as to have the same characteristic as
MT data which are assumed to exhibit plane wave properties. Corrected CSAMT data
were inverted to reveal subsurface resistivity model. Source effect correction method
was applied to eliminate the effect of the signal source and static effect was corrected by
using spatial filtering technique. Inversion method that used in this study is the Occam’s
2D Inversion. The results of inversion produces smooth models with a small misfit
value, it means the model can describe subsurface conditions well. Based on the result
of inversion was predicted measurement area is rock that has high permeability values
with rich hot fluid.
Keywords: CSAMT, Source Effect, Static Effect, Occam’s Inversion
75
August 19-20, 2015
EPS-20
Surface Roughness Mapping to Estimate Surface Moisture using Radarsat2 Quad Polarimetric SAR Data
Nurtyawan, R.1, Saepuloh, A.2, Budiharto, A.3, Wikantika, K.3
1 Centre for Remote Sensing (CRS) Institute of Technology Bandung
Jl. Ganesha No. 10 Bandung, (nurtyawan70@yahoo.com)
2 Faculty of Earth Sciences and Technology, ITB-Indonesia
Jl. Ganesha No. 10 Bandung, saepuloh@gc.itb.ac.id
3 Centre for Remote Sensing Institute of Technology Bandung
Jl. Ganesha No. 10 Bandung , abh.geodesi@gmail.com, ketut@gd.itb.ac.id
Abstract
Microwave backscattering from the earths surface depends on several parameters such
as surface roughness and dielectric constant of surface materials. The two parameters
are closely related to water content and porosity which is crucial for determining soil
moisture. Soil moisture is an important parameter for ecological study and also a factor
to maintain the energy balance of land surface and atmosphere. Direct roughness
measurements to a large area require extra time and cost. Heterogeneity roughness scale
for some applications such as hydrology, climate, and ecology is a problem which could
lead to inaccuracies of modeling. In this study, we modeled surface roughness using
Radasat-2 quad Polarimetric Synthetic Aperture Radar (PolSAR) data. The statistical
approaches to field roughness measurements were used to generate an appropriate
model. This modeling uses a physical SAR approach to predicts radar backscattering
coefficient in the parameter of radar configuration (wavelength, polarization, and
incidence angle) and soil parameters (surface roughness and dielectric constant). To
obtain empirical surface roughness model from SAR backscattering intensity, we used
thirty-five sample points from a field roughness measurements. We selected paddy field
in Indramayu region in Indonesia as the study area. This area was selected due to
decreased productivity intensively that occur in the north coast region west java. We
also incorporated fully polarized HH, HV, and VV data to the roughness model and
obtained a fit model for the soil roughness measurements. The polynomial degree 3 is
the most suitable data fitting with correlation coefficient R2 and RMSE are about 0.84
and 1.2, respectively. Therefore, this model is used as basis to generate the map of
surface roughness.
Keywords: Surface roughness; Radarsat-2 Quad Pol
76
Book of Abstract |
EPS-21
Inversion of The Bromo Volcano Surface Deformation in 2007 to Calculate
Magma Chumber Location and Its Volume Change To Predict Recent
Magma Transport
Ratih Kumalasari, Wahyu Srigutomo
Abstract
Bromo volcano is one of active volcanoes in Indonesia. It has been monitored using
GPS and EDM since 1989 and has erupted at least 50 times since 1775. We apply the
Levenberg-Marquardt inversion scheme to estimate the physical parameters contributing
to the deformation. Previous physical parameters of magma chamber location and
volume change information are very useful in monitoring volcano activity and
predicting recent magma transport.
Keywords: #Inversion #Bromo #GPS #EDM #Deformation
77
August 19-20, 2015
EPS-22
Combined DC Resistivity Survey and Electric Conductivity-Dielectric
Permittivity Measurement at Sag Pond near Lembang Fault, West Java,
Indonesia
Mimin Iryanti1,3 , Wahyu Srigutomo2, Satria Bijaksana1 and Tedy Setiawan1
1 Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung
2 Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung
3 Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia
Jalan Dr. Setiabudhi 229, Bandung 40154, Indonesia.
Abstract
Lembang Fault is a normal fault situated at the southern flank of Tangkuban parahu
Volcano in West Java Indonesia. The fault’s movement may have caused the formation
of sag pond in the vicinity of its which is characterized by the soil layers of the sag
pond. The characteristics of the soil can be examined based on its electrical properties
such as conductivity (the inverse of resistivity) and dielectric permittivity. Direct field
measurement was conducted using DC-resistivity Wenner-Schlumberger method on the
sag pond as well as laboratory resistivity measurement of cores taken from the sag pond.
Two resistivity cross-sections were obtained after performing 2D inversion of the data
which reveal that the resistivity distribution consist of a resistive layer (40-60 ohm.m)
overlying a medium resistive layer (30-35 ohm.m). The third layer has relatively low
resistivity of 16-25 ohm.m. At the intersection of these two lines we took coring
samples down to depth of 5 m below surface and measured the electrical conductivity
and dielectric permittivity for each 1 cm of sample using EM-50 data logger. Results
from both field and laboratory measurement were analyzed to get a better understanding
of the sag pond.
Keywords: DC resistivity ; electric conductivity ; dielectric permittivity ; sag pond
78
Book of Abstract |
EPS-23
MAGNETIC PROPERTIES OF SOILS FROM LANDSLIDE
POTENTIAL AREA
Rifat Ramdhani, Dini Fitriani, Kartika Hajar Kirana, Bambang Wijatmoko, Ogi Sutanto
Geophysics Study Program, Universitas Padjadjaran
Abstract
Pasir Ipis is an area that has the potential for landslide, it is amplified premises data
from Badan Penanggulangan Bencana Daerah (BPBD) West Java Province. Pasir Ipis is
categorized as red zone area which is an area that susceptible to landslide. In term of
physical condition, Pasir Ipis is often experienced to ground movement referring to
Badan Vulcanologi dan Mitigasi Bencana Geologi (BVMBG). The Area has physical
condition factors including steep slope, > 3000 mm/year of rainfall that caused high
water content, and the urban-used land, those support to the landslide potential Based on
Badan Geologi on February 2015. In this study we have analyzed the magnetic
properties of soil taken from Pasir Ipis. We have measured magnetic susceptibility in
dual frequencies, which are at low frequency ( χLF) and high frequency ( χHF). The
results showed that the soil samples has χlf ranging from 265.1 (× 10-8 m3/kg) to 415.1
(× 10-8 m3/kg). Based on the value, it implies that the soil samples contain
ferrimagnetic minerals. Relative difference of magnetic susceptibility measured at two
frequencies ( χFD %) has range from 2.28 to 4.59 %. It inferred that the sample contains
very fine mineral or superparamagnetic grain. This study was supported by geological
mapping data. This data showed that there are areas that have unstable lithological
structure with the present of wet clay. This condition is in contrast with other area on
low potential of landslide area that has dry clay with composed of tuff soil that has
ferromagnetic properties. The granulometry of magnetic minerals contained in soil
samples will also be presented
Keywords: Landslide, Magnetic susceptibility, Pasir Ipis
79
August 19-20, 2015
EPS-24
STUDY OF POTENTIAL LANDSLIDE DISASTER AT KAIRO HILL –
INFRASTRUCTURE TOURISM IN TANA TORAJA
L. Pasasa, L. Hendrajaya, I. Permanasari, and D.Pandara
Earth Physics and Complex System Research Group, Faculty of Mathematics and
Natural Sciences, Institut Teknologi Bandung
Abstract
Landslides are one of the types of natural disasters that often occur in Tana Toraja,
South Sulawesi. The research aimed to study of landslide field at Kairo Hill, Tana
Toraja, South Sulawesi with Geolistrik method of 2-dimensional resistivity imaging.
The study was conducted by two trajectory measurements, namely Kairo-1 and the
Kairo-2. Measurements were made using Wenner-Alpha electrode configuration with
the length range between 90 m to 120 m to a target depth of approximately 15 m to 20
m. The research result showed that the depth of landslide which occurred at Kairo Hill,
Tana Toraja, was about 6 meters with the 11º inclination to the south.
Keywords: Landslide field, Geoelectric, Tourism
80
Book of Abstract |
EPS-26
Seasonal and Semiannual Variability of Sea Surface Height in Makassar
Strait
Ivonne M. Radjawane and Fuad Azminuddin
Oceanography Study Program, Faculty of Earth Sciences and Technology
Abstract
Seasonal and semiannual variability of sea surface height anomaly (SSHA) of Makassar
Strait for 21 years in 1993-2013 is investigated using monthly product from several
altimetry satellite observations. The time series data were obtained from AVISO and
analyzed using spatial diagram, energy spectrum and S-Transform. Results show that
the variation of mean SSHA increase from north to south part of the strait. The SSHA
was dominantly for the 9-14 months that influenced by monsoonal system. During
Northwest Monsoon the SSHA increases around 5 to 12.5cm with the maximum in
February in the southern part of the strait. The semiannual variation was also detected
for the weak 5-7 months signal and commonly occurs during transitional monsoon in
April/May and November/December.This phenomenon related with Kelvin wave
propagation from Lombok Strait to Makassar Strait.
Keywords: SSHA, Seasonal, Semi Annual, Kelvin wave
81
August 19-20, 2015
EPS-28
Preliminary Identification of Upwelling System in Indonesian Seas
Ivonne M. Radjawane and Naomi Arum Gustaria
Oceanography Study Program
Fac. of Earth Sciences and Technology
Abstract
Identification of upwelling system in Indonesian Seas has been studied by using the sea
surface temperature (SST) image data from the observations of TRMM Microwaves
Images (TMI) and the MODIS TERRA satellites, the chlorophyll-a concentration and
normalized water leaving radiance @ 555 nm image data from the observations of
SeaWiFS satellite, and the image of wind patterns from QSCAT satellite observations
during January 2000-December 2008. The visual analysis results from the data
processing shows that the phenomenon of upwelling occurs in the south coast of Nusa
Tenggara – south coast of Java – west coast of Sumatera, southern Makassar Strait,
southern Gulf of Bone, the east coast of North Sulawesi, Banda Sea, and Arafura Sea.
The upwelling system in these regions are conducted by the prevailing of eastern wind
during the Southeast Monsoon and are indicated by the low sea surface temperature in
the range of value between 24.5-28oC and the value of the distribution chlorophyll-a
concentration above 0.8 mg/m3. Exceptional condition is obtained for the upwelling that
occurs in the Arafura Sea where the concentration of chlorophyll-a was found overestimating from the high normalized water leaving radiance @ 555 nm value and
suggested affected by the suspended sediment concentration. It means that the value of
total suspended sediment is no longer just vary by chlorophyll-a but also by the amount
of inorganic sediments from the bottom and rivers. This may occur because many rivers
flow to the Arafura Sea which brings nutrients, organic materials, and other inorganic
matters.
Keywords: Indonesian Seas, satellite, upwelling
82
Book of Abstract |
EPS-29
Biot Modeling of Fluid Saturation in Mesoscale
Thaqibul Fikri Niyartamaa*,c), Umar Fauzia), Fatkhanb)
(a) Physics of Earth and Complex Systems, Faculty of Mathematics and Natural
Sciences, Bandung Institute of Technology, Jalan Ganesha 10, 40132 Bandung,
Indonesia.
thaqibul@yahoo.com
(b) Geophysics Engineering, Bandung Institute of Technology, Jl. Ganesha 10, 40132
Bandung, Indonesia.
(c) Department of Physics, UIN Sunan Kalijaga, Jl. Marsda Adisucipto 1, Yogyakarta,
55283, Indonesia.
Abstract
Acoustic wave propagation based on Biot approach become the basis for the study of
the effect of fluid saturation on seismic signals in poroelastic medium . The scale for
this model is mesoscale that identically with the scale of the reservoir cores which
saturated by fluid (water and gas). As Frequencies of the source in this modeling are
ultrasonic wave frequencies. Finite difference algorithms implemented for the modeling
of Biot equations. Variation of water saturation conducted on the model to observe the
response of ultrasonic signal output. The results from this experiment indicated the P
wave velocity variation and changes in signal amplitude if the value of fluid saturation
was varied.
Keywords: Biot, saturation, mesoscale
83
August 19-20, 2015
EPS-31
Performance Test of gPhone (#123, #126, and #127) during Preparation
Stage of Gundih Pilot Project for CCS Injection
Eko Januari Wahyudi1) , Yoichi Fukuda2), Jun Nishijima3) and Matomu Itakura2)
1 Geophysical Engineering, Institut Teknologi Bandung.
2 Kyoto University.
3 Kyushu University.
Abstract
Gravity team of ITB, Kyoto University, and Kyushu University plan to carry out super
hybrid measurement to monitor CCS injection in Gundih. During preparation stage and
baseline survey of monitoring CCS injection, gravity team analyze gPhone performance.
Performance test of gPhone gravimeters in 2014 conducted in Kyoto and Jatinangor
(three gPhone (#123, #126, and #127) placed in the same location). The tidal analysis
program BAYTAP-G was used to decompose the gravity data into four components
(tidal, trend, irregular, and response for auxiliary data). Drift of the instruments were
decreasing along the measurement, and best drift achived for gPhone #123, #126, and
#127 respectively were -0.165 µGal/hour, 0.175 µGal/hour, and -0.085 µGal/hour.
Standard deviation of the residual gravity of three gPhone (#123, #126, and #127)
respectively were 4.2, 5.7, and 6.8 µGal. On the basis of these results, we try to evaluate
the correlation with rainfall data.
Keywords: gravimeter, gravity monitoring, rainfall, groundwater.
84
Book of Abstract |
EPS-32
Analysis on the Formation of Fractured Zone in Geothermal Reservoir
Using MEQ (Micro-Earthquake) Data on Kamojang Geothermal Field
Alamsyah Rizki Isroi a*), Alamta Singarimbun a), Tommy Herdiansyah b)
a) Earth Science and Complex System, Department of Physics, Bandung Institute of
Technology, Jl. Ganesha 10, Bandung 40132, Indonesia
*rizkiisroi@live.com
b) Pertamina Geothermal Energy, Menara Cakrawala lt 11, Jl. MH. Thamrin No.9,
Jakarta 10340
Abstract
The use of the Earth’s heat as an energy source only began early in the twentieth century
when electricity was generated for the first time from geothermal steam at Larderello,
Italy in 1904. In Indonesia, the explorations of geothermal energy firstly begin on 1918
on the Kawah Kamojang. First electric power generated from Kamojang Geothermal
Field (KGF) in 1978 when a small mono-block form of steam turbines with a capacity
of 250 kWe has been installed by utilizing dry steam from KMJ-6 exploration wells. In
order to maintain the continuity of the production process, it is required a good
monitoring and management of Kamojang Geothermal Field. In this research, analysis
of the formation of fractured zones in the geothermal reservoir on Kamojang
Geothermal Field as one of the geothermal reservoir monitoring efforts in the region.
The method used is the MEQ (micro-earthquake) or micro seismic in order to obtain the
distribution of micro earthquake hypocenter that indicate the direction of flow of
reinjection fluids as fractured zones in the geothermal reservoir.
Keywords: Fractured Zones, Geothermal, Hypocenter, Kamojang, Micro-earthquake.
85
August 19-20, 2015
EPS-33
Resistivity Structure of Lembang Fault derived from Magnetotelluric Data
(preliminary result)
Nurhasan1, D Sutarno1, E J Mustofa1, W Srigutomo1, D Fitriani2, Y Ogawa3
1 Physics Department, FMIPA, ITB, Bandung
2 Physics Department, FMIPA, Padjadjaran University, Bandung
3 Volcanic Fluid Research Center, Tokyo Institute of Technology, Tokyo, Japan
Abstract
The Lembang fault is an active fault with 24-km of long located around 8 Km from
Bandung city. Lembang Fault is part of depression chain in West Java, which is called
the Bandung Zone. In this research, we carried out the broadband Magnetotelluric (MT)
measurements at 9 sites crossing Lembang fault. MT measurements were recording up
to five components of electromagnetic fields (two horizontal electric fields, two
horizontal magnetic fields and vertical magnetic field) in the frequency range of 0.1Hz
to 320Hz. Dimensionality analyses were supported by Groom-Bailey decompositions,
phase tensors and induction vectors. Two dimensional inversion was made by using TE,
TM and both TE TM data in the inversion. Based on results of 2D inversion, structure of
Lembang fault is characterized by a lateral resistivity contrast beneath the fault trace
confirming well from geological study. In addition, a high resistivity zone underlying by
shallow conductor can be correlated to the boundary of creep-locked zone confirmed by
GPS observations. This boundary between the locked zone and creep zone which is
consistently to the boundary high resistivity and low resistivity can act as the top
boundary of weak zone which is an important role in earthquake generation.
Keywords: Magnetotelluric, resistivity, Lembang fault
86
Book of Abstract |
EPS-34
Application of Outliers and Novelty Detection Methods to Identify
Ionospheric TEC Irregularities during Geomagnetic Storm and Substorm
Asis Pattisahusiwa, The Houw Liong, Acep Purqon
Abstract
Geomagnetic storms and substorms contribute to some irregularities and ionospheric
disturbances in the ionosphere. Typically, geomagnetic storm may occur once a month,
while, the substorms may occur several times a day during high solar activity. We
analyze the irregularities by using two different methods; there are outliers and novelty
detection methods based on -Support Vector Regression (-SVR). We use the two
methods to identify disturbances in the GPS Total Electron Content (TEC) data. The
both methods, outliers and novelty detection methods are tipically based on
unsupervised learning algorithm. Furthermore, both methods can also be applied using a
regression method, which work well for time series analysis such as in TEC time-series
data. Our results show that -SVR of novelty detection is more accurate than the outlier
detection one. The outlier detection method inherently just follows a trend of TEC data,
that is the main reason why the method could be not accurate enough to detect an
anomaly.
Keywords: Ionospheric disturbances, geomagnetic storms, geomagnetic substorms,
support vector regression, outlier detection, novelty detection
87
August 19-20, 2015
EPS-35
Climate and Landuse Change Impact to Groundwater Condition at
Parepare City
Karin Nadira Dauwani, Irwan Iskandar, Rusmawan Suwarman
Department of Groundwater Engineering,
Faculty of Earth Science and Technology,
Abstract
Climate change could have impact on the hydrological cycle through rainfall,
evapotranspiration, and the land use change resulting from increased temperatures and
humidity. The projection of rainfall changes and future temperature become the main
parameters needed to calculate changes in the next potential availability of water
resources. Information about regional impact of climate change is needed to configure
the stability of groundwater. Research about groundwater projection, which related to
climate change, land use change, and pumping issue, in the region of Parepare is still
rare. From the results of all scenarios (2050), the largest depression of ground water
projection from the initial groundwater level (2014) showed that pumping factors
reached 27 meters and land use change reached 14 meters. Climate change scenario
shows widest ground water scatter changes, although the highest ground water
depression are only reached 7 meters from initial ground water condition at 2014. Land
use change which focused around the west coast city of Parepare can trigger sea water
intrusion. The influences of the sea water intrusion on the Northwest area are 1325
meters along the coast. Regions that have the potential to happened ground water
intrusion area cause by densely populated rat the residential area.
Keywords: climate change, ground water, land use, and pumping
88
Book of Abstract |
EPS-37
The crosshole sonic logging (CSL) measurement system to measure the
quality of physical model of bored pile
Denniswara Sibit, Gunawan Handayani
Abstract
The crosshole sonic logging measurement to measure the quality of bored piles is
presented in this paper. The development of crosshole measurement system on physical
bored pile modeling was carried out. The diameter of the concrete model was around 1
m and the height of the model was 1.5 m. In the model two holes were constructed to
simulate the crosshole measurement system in the field. The two holes were filled with
water and then two transducers were lowered in the holes. The transducers were built
from audio speaker and microphone and they were sealed by rubber material so that the
transducers were water proof. The speaker transducer acted as transmitter and the
microphone transducer acted as receiver. The acoustic wave transmitted from the
speaker penetrated in the concrete material and received by receiver. By analyzing the
waveform arrived at the receiver by means of datalogger we determine the condition the
concrete pile i.e. whether there were cavities in the concrete etc.
Keywords: Crosshole Sonic Logging, Bored piles, Non Destructive Testing.
89
August 19-20, 2015
EPS-38
Hydrogeological boundaries of strato volcanoes
Dasapta Erwin Irawan1), Prihadi Sumintadireja1), Ahmad Darul2), Anggita Agustin1),
Arif Nurrochman3), and Deny Juanda Puradimaja1)
1) Faculty of Earth Sciences and Technology, Institut Teknologi Bandung
2) Regional and City Planning Program, Institut Teknologi dan Sains Bandung
3) West Java Province Board of Environmental
Abstract
Preliminary hydrogeological study of the spring belt at 3 strato volcanoes has been
carried out to predict the recharge-discharge system of strato volcano, based on
hydrogeological map and 2D numerical simulation. Various position of spring belt can
be found: 250-650 masl at Gunung Ciremai, 500-750 masl at Gunung Gede, and 200400 masl at Gunung Karang-Pulasari. Topographical and geological controls have been
stored in the numerical simulation. Adjustments on slope break and rock distributions
are needed to best-fit spring belt position. The procedures have proven topography and
rock distribution as hydrogeological boundaries on spring belt position. Each volcanoes
showed distinct variations of 2 parameters has occurred on many directions, controlling
radial groundwater flow with different hydraulic gradient. Role as recharge area has not
applied to entire part of highlands, because of impermeable lava. Anomalies needed
careful on-field focussing to get the complete picture of hydrogeology system of strato
volcano.
Keywords: spring belt, strato volcano, hydrogeological boundaries, environmental
protection
90
Book of Abstract |
EPS-39
Porosity Log Prediction Using Neural Network
Oki Dwi Saputro a) , Zulfikar Lazuardi Maulana b), Fourier D. E. Latief c)
1 Departement of Physics, Faculty of Mathematics and Natural Sciences, Institut
Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia
a)Corresponding author: okids@s.itb.ac.id
b)lazuardi32@gmail.com
c)fourier@fi.itb.ac.id
Abstract
Well logging is important in oil and gas exploration. Many physical parameters of
reservoir is derived from well logging measurement. Reservoir properties like porosity,
saturation water and permeability often searched by geophysicist by using well logging.
All of the reservoir properties measurements are expensive. One of method to replace
measurement is prediction using neural network. In this paper, neural network perform
to predict porosity log data from another log data. Three well from ‘yy’ field are used to
do the prediction experiment. All of well log data have sonic, gamma ray, and porosity
log. One of three well is used to train by neural network using software MATLAB.
Levenberg-Marquardt Backpropagation algorithm used in this neural network. Input
training is sonic log data and gamma ray log data. The prediction result have correlation
0.92 with real data, porosity error 0,0171 (Porosity log scale 0-1) and mean squared
error 0.00055. Trained network apply to other well data. The result have correlation
0.872 (well 2) and 0.9081 (well 3) and porosity error 0,0254 (well 2) and 0,0224 (well
3).
Keywords: Neural Network, Porosity, Well Logging.
91
August 19-20, 2015
EPS-40
STUDY INFULENCE OF PORE PRESSURE CONCERNING SLOPE
STABILITY ON ASAM-ASAM MINE LOCATION PT. ARUTMIN
INDONESIA
H. Mayangsari, A. M. Ramdhan, I. Iskandar
Abstract
Slope stability simulation is one of potential landslide mitigation that executed by PT.
Arutmin Indonesia. Previous simulation hasn’t added dynamics of rainfall as input. To
get closest modeling results to real phenomenon, dynamic data of rainfall that affect
pore pressure condition is actually needed. This research explains the dynamics of
change in pore pressure due to precipitation infiltration and its effect on slope stability at
mine area. Parameter in following analysis of slope stability in this research is
parameters of mechanics, pore pressure which is represented in pressure head, and
safety factor (FS). TRIGRS simulation gives larger pore pressure value and smaller FS
value compared to SLIDE which increase landslide vulnerability. Both variables have
positive linear correlation coefficient value about 0.40 which indicates good connection.
One of alternative solutions to lower pore pressure to achieve slope stability is
dewatering activities that produce groundwater level that will be used as simulation
input data. This research use two dewatering scenarios, horizontal drain holes
installation 100m space (DH 100m) and 50m space (DH 50m). Optimum value acquired
by DH 50m dewatering scenario. It’s capable of narrowing critical zone area until 29%
while DH 100m only able to achieve 7% compared with natural condition.
Keywords: factor of safety, pore pressure, TRIGRS, SLIDE
92
Book of Abstract |
EPS-41
The Use of Direct Solver in Vector Finite Element Modeling for Calculating
3-D Magnetotelluric Responses
Rudy Prihantoro; Doddy Sutarno; Nurhasan
Abstract
In this work, we seek numerical solution of 3-D Magnetotelluric (MT) using edge-based
finite element method. This approach is a variant of standard finite element method and
commonly referred as vector finite-element (VFE) method. Instead of using the nodes of
the elements, vector finite element method is using the edges of the element as a vector
basis to overcome the occurrence of nonphysical solutions that usually faced by scalar
(node-based) finite element method. The proposed approach on solving second order
Maxwell differential equation of 3-D MT is using direct solver rather than iterative
method. Therefore, divergence correction to accelerate the rate of convergence for its
iterative solution is no longer needed. The utilization of direct solver has been verified
by comparing the resulting solution to those given by analytical solution, as well as the
solution come from the other numerical methods, for earth layered model, 2-D models
and COMMEMI 3D-2 model. Here also, further verification resulted from recent
comparison model of Dublin Test Model 1 (DTM1) is presented.
Keywords: Magnetotelluric, Vector Finite Element, Direct Solver
93
August 19-20, 2015
EPS-42
Preliminary Study of 2D Fracture Upscaling of Geothermal Rock Using IFS
Fractal Model
Prana F L Tobing1*, Selly Feranie1, Fourier D.E. Latief2
1 Physics Department, Indonesia University of Education,
Jl. Dr. Setiabudhi No. 229, Bandung
2 Physics of Earth and Complex System, Bandung Institute of Technology,
Jl. Ganesha No. 10, Bandung
Abstract
Fractured rock plays important role in reservoir production. In larger scale fractures are
more likely to be heterogeneous and considered to be fractal in its nature. One of the
characteristics of fractal structure is the scale independence. An investigation of fractal
properties on natural fractured rock is therefore needed for modeling larger fracture. We
have investigated the possibilities of fractal upscaling method to produce a larger
geothermal fracture model based on smaller fracture data. We generate Iterated Function
System (IFS) fractal model using parameters e.g. scale factor, angle between branch,
initial line direction, and branch thickness. All the model parameters are obtained from
smaller fracture data. We generate higher iteration model to be compared with larger
geothermal fracture. The similarity between the IFS fractal model and real fracture is
measured by 2D box counting fractal dimension (D). The fractal dimension of first,
second and third generation fractal model respectively are close to 1.7. The fractal
dimension of the reference geothermal site is about 1.8. We found significant similarity
of D, intensity, and density between models and real fractures. Based on these result, we
conclude that fractal upscaling using IFS fractal model is potential to model larger scale
of 2D fracture.
Keywords: Fractal Dimension; Fracture; IFS; Upscaling
94
Book of Abstract |
EPS-43
The Dynamics of Eddies in the Southeastern Tropical Indian Ocean
Farrah Hanifah 1), Nining Sari Ningsih 1), Ibnu Sofian 2)
(1) Research Group of Oceanography, Faculty of Earth Sciences and Technology,
Bandung Institute of Technology (ITB), Indonesia
(2) Geospatial Information Agency (BIG), Cibinong, Indonesia
Abstract
A holistic study was done on eddies in the Southeastern Tropical Indian Ocean (SETIO)
using the HYbrid Coordinate Ocean Model (HYCOM), which was assimilated with Sea
Surface Temperature (SST) for 64 years (from 1950 to 2013). The results from the
model were verified against the current, the Sea Surface Height Anomaly (SSHA), and
the SST from Ocean Surface Current Analyses – Real time (OSCAR); Archiving,
Validation and Interpretation of Satellite Oceanographic Data (AVISO); and National
Oceanic and Atmospheric Administration (NOAA) data, respectively. The verification
showed that the model simulates the condition in the area of study relatively well. We
discovered that the local wind was not the only factor that contributed to the formation
of eddies in the area. The difference in South Java Current (SJC) flow compared to the
Indonesian Throughflow (ITF) and South Equatorial Current (SEC) flow as well as the
difference in the relative velocity between the currents in the area led us to suspect that
shear velocity may be responsible for the formation of eddies. The results from our
model corroborated our prediction about shear velocity. Therefore, we attempted to
explain the appearance of eddies in the SETIO based on the concept of shear velocity.
By observing and documenting the occurrences of eddies in the area, we found that
there are 8 cyclonic and 7 anticyclonic eddies in the SETIO. The distribution and
frequency of the appearance of eddies varies, depending on the season.
Keywords: Eddies, SEC, SJC, ITF
95
August 19-20, 2015
EPS-44
Empirical Orthogonal Function Analysis of Sea Surface Temperature and
Wind Stress in the Banda Sea
Nining Sari Ningsih, Farrah Hanifah
Research Group of Oceanography, Faculty of Earth Sciences and Technology, Bandung
Institute of Technology (ITB), Indonesia
Abstract
Variability of monthly Sea Surface Temperature (SST) and wind stress in the Banda Sea
from 1950 to 2013 are investigated using scalar and vector Empirical Orthogonal
Function (EOF). EOF analysis for SST reveals that the first mode (93%) is dominated
by seasonal cycle. Beside seasonal, there are variability of interannual and interdecadal
that correlated with El Niño Southern Oscillation (ENSO), Western Equatorial Pacific
(WEP) and Pacific Decadal Oscillation (PDO). For wind stress, first mode EOF (92%)
is associated with monsoon winds.
Keywords: SST, wind stress, EOF
96
Book of Abstract |
EPS-45
Analysis and Visualization of 2D and 3D Grain and Pore Size of
Fontainebleau Sandstone Using Digital Image Analysis
Fourier Dzar Eljabbar Latief
Physics of Earth and Complex Systems, Faculty of Mathematics and Natural Sciences,
Institut Teknologi Bandung.
Abstract
Fontainebleau sandstone is sandstone found in one of the cities in France. This
sandstone has unique characteristics, which is a clean-fine sandstone, composed of 99%
quartz, virtually devoid of clay, with the grain size of about 200 μm. Fontainebleau
sandstone is widely used as a reference in the study of rock microstructure analysis and
modeling. In this work analysis regarding the grain and pore size of Fontainebleau is
presented. Calculation of 2D pore size and grain size distribution were done on the 299
slice of digital image of the Fontainebleau sandstone using Feret diameters, equivalent
diameters (d = 2A/P), and by means of local thickness/separation using plate model. For
the 3D grain and pore size distribution, calculation of local thickness and local
separation of the structure were used. Two dimensional analysis by means of Feret
diameter and equivalent diameter reveal that both grain and pore size distributions are in
the form of reverse-J shaped (right skewed) while the local thickness/separation
approach produces almost similar to symmetric Gaussian distribution. Three
dimensional analysis produces fairly symmetric Gaussian distribution for both the grain
and pore size. Further image processing were conducted and were succeed in producing
three dimensional visual of the color coded structure thickness (grain related) and
structure separation (pore related).
Keywords: Fontainebleau sandstone, grain size, pore size, Feret diameter, local
thickness, local separation
97
August 19-20, 2015
EPS-46
Clay analysis and Shear Parameter Calculation (c and ) of Cililin, West
Java Landslides
Ikah N. P Permanasari1,2 , Gunawan Handayani2 , Lilik Hendrajaya2
1 Physics Departement, Sumatera Institute of Technology, Lampung, Indonesia
2 Physics of Earth and Complex Systems, Faculty of Mathematics and Natural Sciences,
Abstract
The determination of shear strength and clay analysis for landslide is important research
object in slope stability analysis. West Java is the province with the highest number of
landslide occurrence since 1990-2012 that 1014 incident, or 59.86% of the whole
landslide in Indonesia at that time. In this study, back-calculation is discussed and is
conducted to analyze the shear strength parameters of the Cililin landslide. With this
method we obtain the magnitude of c and  wihch is calculated form the known by slope
geometry that measured by GPS, unit weight and factor of safety.
Keywords: shear strength parameters, slope geometry, factor of safety.
98
Book of Abstract |
EPS-48
The Aplication of Fourier Prediction Model to Schedule Paddy Growing
Season with High Resolution for Upgrading Farm Capacity Building (Case
Study in Indramayu Regency)
Plato Martuani Siregar
Meteorologi Study Program,Faculty of Earth Science and Technology,ITB
Abstract
The successfully of economic develoving are upgrading production in field agriculture,
but Indonesia governments still get very much problem failure annual paddy harvest and
planting that because 20 % decrease National production. The failure planting are
maybe caused weather and climate change that became farmers are difficulty planning
well for growing season.The role models estimate rainfall exactly in high resolution are
very important. Then, upgrading reliable of agriculture information system that
affordable and incomprehensible by stakeholders need to help government
services,scout and farmer to plan growing season pattern exactly,so that systems will
increase National production of paddy to effort preservation dan enduration of
Indonesian National foods. The developing Fourier prediction models to agriculture
information system and communication are software that user friendly for
instructor/scout and farmer who trouble solving of climate change. The agriculture
information models are develoed to transform set time of growing season map that
overlayed with rice terraces whom government services, scout and farmer at Indramayu
regency used it. The sum of sinus models are used alternatively to predict ten daily and
monthly rainfalls for one year ahead to get 0.979 correlation with observation data. The
residue data from sum of sinus models are rainfall anomaly that they indicated to be
oscillated regional and global factor include: MJO, ENSO and IOD event fenomena that
can caused forward and late rainfall season (wet). The climate are ecosystem component
and production factor that dynamics and difficult controlled or estimated,therefore the
approaching agriculture system are adjust with farm system dan climate localy. The
fitting curve product from sum of sinus models related with monsoon event and climate
classification study that indicate to distribute annual wet and dry months while residue
model show cycles of 1,2 dan 5 yearly.The cycles are related to ENSO event. The
Schmidt & Ferguson classification system and indonesia data of rainfalls and wind
monthly that java island controlled by ITCZ,monsoon and sea-land cycle than conclused
that Indramayu Regency dominate by type of wet dan dry monthly. The Map of early
season and paddy growing season prediction models have been evaluated since 2008
year ego and updating to be web agriculture information software system therefore to
make easy for farmer and instructor to aplicated it on annual planting season.
Keywords: growing season,sinus,Fourier,farmer,ITCZ,Monsoon.
99
August 19-20, 2015
EPS-49
Development of porosity measurement method in shale gas reservoir rock
Alita Siswandani1, Bagus Endar B. Nurhandoko1,2
1) Wave inversion and subsurface fluid imaging lab., Physics Department, ITB
2) Rock Fluid Imaging Lab.
Abstract
The pore scales have impacts on transport mechanisms in shale gas reservoirs. The
analysis of molecular effect of nano pores in shale gas required specific measurement
and calculation. In this research, digital helium porosity meter is used for porosity
measurement by considering real condition. therefore it is necessary to obtain a good
approximation for gas filled porosity. Shale has the typical effective porosity that is
changing as a function of time. Effective porosity values for three different shale rocks,
possibly due to deposits of sand or fracture densities are different. We developed new
method for characterizing porosity phenomena in Shale gas which is time function by
measuring porosity in range of minutes and second sampling using digital helium
porosity meter. It is to measure shale porosity which has two type porosity, free gas and
adsorbed gas porosity. We present also the estimation of effective porosity values by
considering Boyle-Gay Lussac approximation and Van der Waals approximation.
Keywords: shale gas porosity, Boyle Gtay-Lussac, Van der Waals, digital helium
porosity meter
100
Book of Abstract |
EPS-50
Shallow structure of Papandayan Volcano, Garut based on Resistivity Data
Nurhasan and Nilam Sari
Physics Department, Bandung Institute of Technology, Bandung, Indonesia
E-mail : nurhasan@fi.itb.ac.id
Abstract
Papandayan volcano is an active volcano situated in Garut, West Java Indonesia. In
2002 eruption, it released pyroclastic volcanic material to the surface covering the 4
km2 area on the summit to the north part of the volcano and formed new craters on the
summit. In order to delineate subsurface structure of the volcano, DC resistivity surveys
were carried out in the center of the summit consisting of 4 lines to confirm the
thickness of pyroclastic distribution released from 2002 eruption. The Schlumberger and
Wenner methods were used in this DC resistivity surveys in east-west and north-south
directions. The result derived from 2D inversion shows that the resistive zones were
found correlated to the high temperature distributed in center of the region. The
pyroclastic distribution was confirmed by low resistivity that can becorrelated to the
2002 eruption.
Keywords: Papandayan Volcano, DC resistivity
101
August 19-20, 2015
EPS-51
Investigation of Underground Hydrocarbon Leakage using Ground
Penetrating Radar
Wahyu Srigutomo1 and Trimadona1 and Eleonora Agustine2
1Physics of Earth and Complex System, Fac. of Mathematic & Natural Sciences,
Institut Teknologi Bandung,
2 Geophysics Dept., Universitas Padjadjaran, Jl. Raya Jatinangor-Sumedang KM 32,
Sumedang, Indonesia
Abstract
Ground Penetrating Radar (GPR) survey was carried out in several petroleum plants to
investigate hydrocarbon contamination beneath the surface. The hydrocarbon spills are
generally recognized as Light Non-Aqueous Phase Liquids (LNAPL) if the plume of
leakage is distributed in the capillary fringe above the water table and as Dense NonAqueous Phase Liquids (DNAPL) if it is below the water table. GPR antennas of 200
MHz and 400 MHz were deployed to obtain clear radargrams until 4 m deep. In general,
the interpreted radargram sections indicate the presence of surface concrete layer, the
compacted sand layer and the original clayey soil as well as the water table. The
presence of hydrocarbon plumes are identified as shadow zones (radar velocity and
intensity) in the radargram that blur the layering pattern with different intensity of
reflected signal. Based on our results, the characteristic of the shadow zones in the
radargram is controlled by several factors: types of hydrocarbon (fresh or bio-degraded),
water moisture in the soil, and clay content which contribute variation in electrical
conductivity and dielectric constants of the soil.
Keywords: ground penetrating radar, hydrocarbon contamination, shadow zones
102
Book of Abstract |
EPS-52
2D Resistivity and Induced Polarization Measurements for Manganese in
East Nusa Tenggara, Indonesia
Wahyu Srigutomo, Trimadona and Prihandhanu P. Mukti
Physics of Earth and Complex System, Fac. of Mathematic & Natural Sciences, Institut
Teknologi Bandung,
Abstract
2D Resistivity and Induced Polarization (IP) survey was conducted in an area in East
Nusa Tenggara, Indonesia. The objective is mailny to delineate or localize the presence
of rocks or minerals containing manganese in form of manganese ore. The Resistivity
method concerns with resistivity (ohm.m) of rocks which indicates the electrical
properties in terms of ability to resist the flow of electrical current. The presence of
manganese in rocks generally lowers the resistivity. The Induced Polarization (IP)
method deals with chargeability (in msec) which indicates the strength of polarization
effects experieced by ions in the viccinity of metallic grains in rock. The presence of
manganese in rocks increases the chargeability of the rock when measured using IP
method. The low resistivity zones (< 5 ohm.m) are situated in the western part, central
part, and eastern part of the investigated area. These zones may strongly correlate to the
presence of manganese ore. However, these low resistivity zones may have been
influenced by the presence of clay or weathered soil. In this case, the high chargeability
zones will help in confirming the prospective zones caused by manganese ore. The
thicknesses of the manganese ore layer vary from about 5 to 20 m based on the crosssections. Based on the results, we estimated the geometry of the associated manganese
prospective zones for resistivity (< 5 ohm.m) and chargeability (>10 msec).
Keywords: resistivity, induced polarization, manganese, chargeability
103
August 19-20, 2015
IDP-01
Characterization of Mode of Pseudo-Two Dimension Granular Material
Motion In Vertical Rotation Drum
Yulia*, Yopy Mardiansyah, Siti Nurul Khotimah, Suprijadi, Sparisoma Viridi
Physics Deparrment Bandung Institute of Technology
*lia.yu2@gmail.com
Abstract
The aim of this research is to characterize the mode of pseudo-two dimension granular
material motion in vertical rotary drum. The granular material has made of 4 mm
diameter steel. Granular material in vertical rotary drum have six motion mode i.e.,
slipping, slumping, rolling, cascading, cataracting, and centrifuging. Those modes
depend on material of granular, rotation speed, and number of granular material. This
research is uses 4 mm diameter spherical steel granular material, and flat drum with 16
cm diameter and 5 mm thick. Characterization of granular motion mode has done by
variation of granular amount and rotation speed. Rotation speed is varied from 15 rpm
to 125 rpm. Number of granular material is varied from 50 to 600. Steel granular
material has five modes motion in varied variable. Those are slipping, slumping, rolling,
cascading, and cataracting. The characterization of mode of this granular motion is
shown in characterization graph.
Keywords: Pseudo-two dimension granular material, granular motion mode, vertical
rotary drum
Topic: Interdisciplinary Physics
104
Book of Abstract |
IDP-02
A Development of Force Plate for Biomechanics Analysis of Standing and
Walking
Sony Wardoyoa*), Pahala Tua Hutajulub), and Octolia Togibasaa)
(a) Department of Physics, University of Cenderawasih, Jayapura 99358, Indonesia
(b) Department of Physical Education, Health and Recreation,
University of Cenderawasih, Jayapura
Abstract
Force plates are known as an excellent teaching aid to demonstrate the kinematics and
dynamics of motion and commonly used in biomechanics laboratories to measure
ground forces involved in the motion of human. It is consist of a metal plate with
sensors attached to give an electrical output proportional to the force on the plate.
Moreover, force plates are useful for examining the kinetic characteristics of an athlete’s
movement. They provide information about the external forces involved in movement
that can aid a coach or sports scientist to quantitatively evaluate the athlete’s skill
development. Unfortunately, commercial force plate systems cost more than IDR
200.000.000 which mean very expensive for universities and sports scientist in
developing region like Papua. Interestingly, a group from University of Sidney
developed their force plate by using five piezoelectric sensor made from PZT ceramic,
with total cost approximately IDR 50.000.000. In this study, we develop our prototype
of force plate with less than IDR 10.000.000 simply by using flexible force transducer
attached inside rubber matt, in the form of square blocks (dimension: 300 mm x 300 mm
x 10 mm), with maximum load up to 60 kg. The handmade force plate was tested by
applying biomechanics analysis for standing and walking. The testing was done on
Experimental Soccer Courses’ students at the Department of Physical Education, Health
and Recreation, University of Cenderawasih. The design of the force plate system
together with biomechanics analysis will be discussed.
Keywords: force plate design, biomechanics, standing, walking
105
August 19-20, 2015
IDP-03
EXPERIMENTAL STUDY OF GRANULAR CONVECTION ON
PSEUDO TWO-DIMENSION AND TWO-DIMENSION BRAZIL-NUT
EFFECT
Hari Anggit Cahyo Wibowo, Trise Nurul Ain, Yayan Prima Nugraha, Dimas Praja
Purwa Aji, Siti Nurul Khotimah, Sparisoma Viridi
Abstract
Brazil-Nut Effect (BNE) experiment in pseudo two-dimension and two-dimension are
conducted. In observing the BNE in pseudo two-dimension small spherical beads are
used as bed particles, while small acrylic disks are used in the two-dimension. In both
experiments the container box is made form acrylic. The first experiment shows that
convection flow of the granular particles decreases with the increase of frequency in the
range of 17-22 Hz at constant vibration voltage 10 V. It is also observed that intruder
rise time T_rise increases with the increase of frequency in the range of 13-18 Hz. This
holds for vibration voltage 10, 11 and 12 V. The second experiment is conducted for
frequency in the range of 13-17 Hz and normalized acceleration Γ: 2; 2.5; 3; 3.5; 4. Two
different states are observed. In the former state T_rise decreases with the increase of Γ,
while in the later one it increases due to the existence of Leidenfrost effect.
Keywords: Brazil-Nut Effect, convection, granular material, two-dimension.
106
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IDP-07
Stochastic Response of Nonlinear Structures
Anwar Dolu 1), Amrinsyah Nasution 2)
1). Jurusan Teknik Sipil, Universitas Tadulako,
Jl. Soekarno – Hatta KM – 9, Palu, Sulawesi Tengah
2). Jurusan Teknik Sipil, FTSL Institut Teknologi Bandung (ITB),
Jl. Ganesha 10, Bandung, Jawa Barat
Abstract
In this study, to evaluate the behavior of nonlinear structures with large deformations in
the beams associated with the moment-curvature nonliniearity and nonlinear due to midplane stretching with axial load. Excitation force is white noise type and ocean waves.
By using statistical linearization method and Fokker-Planck-Kolmogorov (FPK)
method, can be obtained stochastic response of structures in the form of standard
deviation and probability density function (PDF) of displacement of structures
Keywords: Stochastic response, Nonlinear structure, Displacement, White noise, Ocean
waves, FPK, Standard Deviation, PDF
107
August 19-20, 2015
IDP-08
Group Identification in Indonesian Stock Market
Ervano Nurriyadi a), Sung Kyun Jo b), Kyuseong Lim b), Acep Purqon a), Soo Yong Kim b)
a) Physics of Earth and Complex Systems, Institut Teknologi Bandung, Indonesia
*ervano.nurriyadi@students.itb.ac.id
b) Department of Physics, Korea Advanced Institute of Science and Technology,
Daejeon 305-701, Korea
Abstract
The characteristic of Indonesian stock market is interesting especially because it
represents developing countries. We investigate the dynamics and structures by using
Random Matrix Theory (RMT). Here, we analyze the cross-correlation of the price
fluctuations of stocks from the Indonesian Stock Exchange (IDX) from the daily closing
price during January 1, 2007, to October 28, 2014. The eigenvalue distribution of the
correlation matrix consists of noise which is filtered out using the random matrix as a
control. The bulk of the eigenvalue distribution conforms to the random matrix,
allowing the separation of random noise from original data which is the deviating
eigenvalues. From the deviating eigenvalues and the corresponding eigenvectors, we
identify the intrinsic normal modes of the system and interpret their meaning based on
qualitative and quantitative approach. The results show that the largest eigenvector
represents the market-wide effect which has a predominantly common influence toward
all stocks. The other eigenvectors represent highly correlated groups within the system.
Furthermore, identification of the largest components of the eigenvectors shows the
sector or background of the correlated groups. Interestingly, the result shows that there
are mainly two clusters within IDX, natural and non-natural resource companies. We
then decompose the correlation matrix to investigate the contribution of the correlated
groups to the total correlation, and we find that IDX is still driven mainly by the marketwide effect.
Keywords: Correlation; Eigenvalue; Eigenvector; Random matrix; Market-wide effect
108
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IDP-10
Feynman Path Integral Application on Deriving Black-Scholes Diffusion
Equation for European Option Pricing
Briandhika Utama, Acep Purqon
Abstract
Path Integral is a method to transform initial condition to final condition through
multiplying the initials with some transition probability function, known as propagator.
At the beginning of its development, researches focused to apply this method for solving
problems in Quantum Mechanics. Nevertheless, with some modification in transition
probability function Path Integral could also be applied in other subject. This paper
present the application of Path Integral in financial derivatives, Options Pricing. BlackScholes Model (Nobel 1997) was a beginning anchor in Option Pricing development.
Though this model have many weaknesses, especially in its sensitivity for the major
changes of market condition, Black-Scholes Model still is a legitimate equation in
pricing an option. The derivation of Black-Scholes have a high difficulty level because
it has partial differential and not equal ordered equation. Black-Scholes equation has a
similar principle with Path Integral that is in Black-Scholes, the initial price is
transformed to final price. The transition probability functions then derived by
introducing a modified Lagrange based on Black-Scholes equation. In this study, we
focus on European Option Pricing and deriving the solution. Furthermore, we compare
our analytical model of derived solution with a Monte-Carlo calculation to find the
similarity between this two models.
Keywords: Black-Scholes Model, Econophysics, Option Pricing, Path Integral
109
August 19-20, 2015
INS-01
Designing Light Beam Transmittance Measuring Tool Using A Laser
Pointer
Harto Nuroso 1,2 *; Wawan Kurniawan 2 ; Putut Marwoto 1
2. Physics Education Studies Programs Universitas PGRI Semarang
* Email: hartonuroso@gmail.com
Abstract
A simple instrument used for measuring light beam transmittance percentage made of
window film has been developed. The instrument uses a laser pointer of 405 nm and 650
nm ±10% as a light source. Its accuracy approaches 80%. Transmittance data was found
by comparing the light beam before and after passing the window film. The light
intensity measuring unit was deleted by splitting the light source into two beams
through a beam splitter. The light beam was changed into resistance by a NORP12 LDR
sensor designed at a circuit of voltage divider rule of Khirchoff’s laws. This conversion
system will produce light beam intensity received by the sensor to become an equal
voltage. This voltage will, then, be presented on the computer screen in a form of a real
time graph via a 2.0 USB data transfer.
Keywords: beam splitter, laser pointer, light beam, transmittance, window film.
Topic: Instrumentation and Measurement
110
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INS-02
Simulation and Analysis of Amplitude and Interference LVDT’s (Linear
Variable Differential Transformer) Secondary Coils Sinusoid Signal Based
IC AD598
Kiswanto a*), Hendro b), Sparisoma Viridi c)
a) Physics of Earth and Complex Systems, Bandung Institute of Technology, Jalan
Ganesha 10, Bandung 40132, Indonesia
*physicman88@gmail.com
b)Theoretical High Energy Physics and Instrumentation, Bandung Institute of
Technology, Jalan Ganesha 10, Bandung 40132, Indonesia
c)Nuclear Physics and Biophysics, Bandung Institute of Technology, Jalan Ganesha 10,
Bandung 40132, Indonesia
Abstract
Simulation and analysis for LVDT’s amplitude and sinusoid interference signal has
been performed based on IC AD598. This IC is used to convert transducer mechanical
position to a DC voltage with a high precision. To do this, Virtual Instrumentation
LabView is used. Parametric analysis likes phase, frequency, amplitude, and
transformation function of a LVDT is conducted. From the analysis, the output signal of
a LVDT can be investigated precisely before actual signal processing. The prospects of
this step is developed a high precision and accuracy LVDT’s signal conditioning
system.
Keywords: LVDT, LabView, Signal, Simulation
111
August 19-20, 2015
INS-03
Design of Monitoring System for Volcano Mitigation Based on Deformation
Mohammad Ruqy Faishal Islamy 1), Rahmat Awaludin Salam 1),
Muhammad Miftahul Munir 1,4,a), Masyhur Irsyam 3,4) and Khairurrijal 2,4,b)
1) Theoretical High Energy Physics and Instrumentation Research Division
2) Physics of Electronic Materials Research Division
3) Geotechnical Engineering Research Division
4) Research Center for Disaster Mitigation, Institute for Research and Community
Empowerment
a)miftah@fi.itb.ac.id, b)krijal@fi.itb.ac.id
Abstract
Abstract. Indonesia has many active volcanoes that potentially could bring disaster. It
needs good mitigation system to prevent victim from this disaster. Therefore, the system
for monitoring deformation of volcano was built. This system employed telemetry with
combination of Radio Frequency (RF) communication by XBEE and General Packet
Radio Service (GPRS) communication by SIM900. There are two type modules in this
system first is coordinator as a parent and second is node as a child. Each node
connected to coordinator forming Wireless Sensor Network with star topology and have
inclinometer based sensor, Global Positioning System (GPS), and XBEE module. The
coordinator collects data to each node, one a time, to prevent collision data between
nodes, save data to SD Card and transmit data to web server via GPRS. Inclinometer
was calibrated with self-built in calibrator and tested in high temperature environment
for checking the durability of it. The GPS was tested by showing it position in web
server via Google Map Application Protocol Interface (API v.3). It was shown that
coordinator can receive and transmit data from every node to web server very well and
the system worked well in high temperature.
Keywords: volcano deformation; inclinometer; WSN; volcano eruption; SD Card;
telemetry
112
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INS-04
DESIGN OF EDIBLE OIL DEGRADATION TOOL BY USING
ELECTROMAGNETIC FIELD ABSORBTION PRINCIPLE WHICH
WAS CHARACTERIZED TO PEROXIDE NUMBER
Maizal Isnen, Tulus Ikhsan Nasution, Bisman Perangin-angin
Department of Physics, Faculty of Mathematics and Natural Sciences, University of
Sumatera Utara
Abstract
The identification of changes in oil quality has been conducted by indicating the change
in dielectric constant which was showed by the change in sensor voltages. It related to
peroxide number. The sensor was formed from two parallel flats that worked by using
the principle of electromagnetic wave propagation. The observation has done by
measuring the amplitude of the electromagnetic wave attenuation caused by interaction
between edible oil samples and the sensor electrodes. In this case, the parallel flats were
connected to a sinusoidal wave oscillator 700 kHz. The sensor has showed measurable
voltage differences for each different samples. The testing has carried out to five oil
sample that undergone oxidation process at fixed temperature of 235oC for 0, 5, 10, 15
and 20 minutes. The result with iodometry method successively showed peroxide values
about 1.99, 9.95, 5.96, 11.86, and 15.92 meq/kg with rising trend. While, the result
using sensor system successively showed voltages values 1.139, 1.147, 1.165, 1.173,
and 1.176 volts with rising trend. This means the relation has been found. Where, the
higher sensor voltages value showed the more damage in edible oil. The changes in
voltages sensor value were caused by the change in oil dielectric constant, where the
heating process caused the damage in oil molecules structures. The more damage in oil
structure would provide more difficult the oil molecules to polarize by the
electromagnetic field, and it would be indicated by the smaller dielectric constant.
Therefore the electric current was smaller but the potential sensor was higher. On the
other side, the higher sensor voltages, the smaller dielectric constant will be. The small
of dielectric constant showed the low level in the peroxide number.
Keywords: electromagnetic field, peroxide, sensor, dielectric, edible oil.
113
August 19-20, 2015
INS-06
ACOUSTIC MEASUREMENT AND KIRCHOFF-RAY MODE (KRM)
MODEL COMPUTATION FOR FISH BACKSCATTER
Henry M. Manik
Laboratory of Ocean Acoustics and Sonar System
Department of Marine Science and Technology
Bogor Agricultural University (IPB)
Kampus IPB Dramaga Bogor
Abstract
Acoustic measurement of fish backscatter was conducted in the water tank laboratory.
Characteristics and general trends of the target strength of fish with special reference to
gold fish (Cirprinus carpio) were investigated by using a Kirchoff Ray Mode (KRM)
model. Backscattering amplitudes were calculated for the KRM having typical
morphological and physical parameters of actual fish. Those backscattering amplitudes
were shown as frequency, body length, backscattering patterns, the density and sound
speed dependences, and orientation dependence. These results were compared with
experimentally measured target strength data and good agreement was found. The
frequency dependence of dorsal aspect target strength of fish is small at Length/ lamda
>2 (in this geometrical region, target strength is approximately proportional to the
squared body length), and has a Rayleigh region at Length/lamda >=1, but there is no
resonant scattering between the two regions. The density and sound speed range
observed for squid causes variability of about 5 to 10 dB in the target strength value.
The variability of target strength with respect to the orientation is very high due to the
very directive backscattering patterns when Length/ lamda and body thickness are not
small.
Keywords: acoustic, Kirchoff-Ray Mode (KRM), computation, backscatter
114
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INS-08
Low Cost Concentric Cylinders Viscometer based Microcontroller
Casmika Saputra 1), Fandi Walio 1), Muhammad Miftahul Munir 1,3,a), and
Khairurrijal 2,3,b)
1) Theoretical High Energy and Instrumentation Research Division
2) Physics of Electronics Material Research Division
3) Research Center for Bioscience and Biotechnology,
Institute for Research and Community Service
a) miftah@fi.itb.ac.id, b) krijal@fi.itb.ac.id
Abstract
Viscosity is one of the characteristics of a fluid material. Viscosity can be calculated in
various ways, in this paper low cost viscometer has been developed using rotary
concentric cylinders. Viscometer system is composed of a signal conditioning circuit, an
ATMega8 microcontroller, a 16x2 LCD to show the parameters, and a computer with a
graphical user interface (GUI). The viscometer have manually and automatically
measurement mode. The viscosity value can be determined by gradient of the current
consumption motor and rate of rotation. Calibration was performed using Aquades and
then the viscometer is being tested for measuring the viscosity of various concentrations
of ethanol solution. The result shows that viscometer capable of measuring viscosity
with 84% accuracy.
Keywords: concentric cylinder; motor control; viscometer, viscosity
115
August 19-20, 2015
INS-09
Design and Implementation of Automatic Air Flow Rate Control System
Ali Akbar, Casmika Saputra, Muhammad Miftahul Munir, and Khairurrijal
Abstract
Ventury meter is one tool that can be used to measure the air flow rate. In this
experiment we designed a ventury meter which equipped with a valve that used to
control the air flow rate. The difference of pressure between the cross sections measured
with the differential pressure sensor GA 100-015WD which can calculate the difference
of pressure from 0 to 15 inch H2O or 0 to 3737.33 Pa. An 42M048C Z36 stepper motor
has been used to control the valve. The precision of this motor rotation is about 0.15 º. A
Graphical User Interface (GUI) was developed to monitor and set the value of flow rate.
An 8-bit microcontroller was used to process the control system. In this experiment, first
the ventury meter has been characterized to get the right proportional parameter of
controller. The results show that the controller can set the stable output air flow rate.
Keywords: Air flow rate, Venturimeter, ATmega8, Stepper
116
Book of Abstract |
INS-10
A Simple Accelerometer Calibrator
Rahmat Awaludin Salam1, Mohammad Ruqy Faishal Islamy1,
Muhammad Miftahul Munir1,5, Hamzah Latief 3,5, Masyhur Irsyam 4,5, Khairurrijal 2,5
1 Theoretical High Energy Physics and Instrumentation Research Division
2 Physics of Electronics Material Research Division
3 Oceanography Research Division
4 Geotechnical Engineering Research Division
5 Research Center for Disaster Mitigation,
Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
Abstract
High possibility of earthquake is responded to high number of victim that cause by it. It
also can cause the other hazards such as tsunami, landslide, etc. In that case it requires a
system that can read the earthquake occurrence. Some possibility point is making a
vibration sensor system using accelerometer. However the output of the system usually
in acceleration data. Therefore it is needed to make a calibrator system for
accelerometer to sense the vibration. In this study, a simple accelerometer calibrator has
been developed using 12 V DC motor, optocoupler, LCD and AVR 328 microcontroller
as controller system. The system use the PWM form microcontroller to control the
motor rotation speed as response to vibration frequency. The vibration frequency was
read by optocoupler and then those data was used as feedback to the system. The results
show that the systems can control the rotation speed and the vibration frequencies are in
accordance with the defined PWM.
Keywords: Accelerometer, Calibrator, Frequency, Vibration
117
August 19-20, 2015
INS-11
Study of Soil Moisture Sensor for Landslide Early Warning System:
Experiment Scale
Elfi Yuliza 1), Husni Habil 1), Muhammad Miftahul Munir 2,4,a, Masyhur Irsyam 3,4),
Mikrajuddin Abdullah 1,b) and Khairurrijal 1,4,c)
1) Physics of Electronics Material Research Division,
2) Theoretical High Energy Physics and Instrumentation Research Division,
3) Geotechnical Engineering Research Division,
4) Research Center for Disaster Mitigation,
Institute for Research and Community Empowerment
Jalan Ganesa 10, Bandung 40132, Indonesia
a)miftah@fi.itb.ac.id, b)din@fi.itb.ac.id, c)krijal@fi.itb.ac.id
Abstract
The increasing frequency of landslide occurrence requires effort to minimize the
possible risk through early warning system of landslide. The increased rainfall is the
main trigger factor in many cases of landslides. However, each soil has unique
characteristics and behavior of rainfall infiltration. Therefore, early warning system of
landslide will be more accurate with monitoring of ground water changes. In this study,
the monitoring of ground water changes was designed by using soil moisture sensor and
simple microcontroller for data processing. The performance of soil moisture sensor was
calibrated using gravimetric method. From the experiment using a small-scale landslide
simulator, the electrical resistance of the soil increased as soil water content increases.
In addition, the various soil types were used to knowing the responses of soil that induce
slope failure. Experiment result show that each soil has different volumetric water
content, soil matrix suction and shear strength of the slope. The position of sensor in soil
also influences the accuracy of measurement data.
Keywords: landslide monitoring, soil moisture sensor, gravimetric method, soil, ground
water
118
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INS-12
Instrumentation System Design and Simulation Landslide Disaster
Mitigation in Lab Scale
Husni Habil, Elfi Yuliza, Rahmat Awaludin Salam, Mohammad Ruqy Faishal Islamy,
Muhammad Miftahul Munir, Masyhur Irsyam, and Khairurrijal
Abstract
Research on landslide has been developed recently because it may endanger human life,
especially in Indonesia. Landslide is the movement of rock, detritus, or soils caused by
the action of gravity. Landslides are influenced by several factors such as landslide
slope, high rainfall, land cover, and the vibe around the slopes. From these factors, tilt
detection sensors, precipitation, and soil moisture sensor have developed for detection
failure of landslides. These sensors mounted so that it can detect the occurrence of
landslides. The study was conducted on a container which contains the sloping ground.
Landslide, slope processes, and humidity investigated in this container. The tilt sensor
using MMA8451Q accelerometer which detects the acceleration using MEMS (Micro
Mechanical System) technology and it is easily available, mass-produced, inexpensive,
and high-precision output data (14 bits). To calibrate MMA8451Q, tilt calibrator based
on motor stepper has been created. Results from this calibrator are degree of inclination
with the resolution about 0.667 degrees. Besides this calibrator, landslide simulator also
made so it can be analyzed directly without the occurrence of landslides to the scene.
Simulator is made from glass with size 80 x 20 x 40 cm that filled by soil. Based on the
simulation results, there are changes on accelerometer and soil moisture data during the
landslide occurrence.
Keywords: landslide, MMA8451Q accelerometer, soil moisture, failure, landslide
simulation
119
August 19-20, 2015
MAT-01
Optimized Morphology Properties of Silver Catalyst Substrate for Twisted
Carbon Nanoribbon Growth by Pecvd Method
Ahmad Rosikhin, Ibnu Syuhada, Aulia Fikri Hidayat and Toto Winata
Department of Physics, physics of electronic materials research division
Jl. Ganesha 10, Bandung 40132, Jawa Barat – Indonesia
Abstract
Twisted carbon nanoribbon was grown on multilayer annealed silver thin films using
RF-PECVD method at relatively low rf power, 8 watt. The substrate temperature in the
chamber need to be hold in constant at 250oC, CH4 flow rate 20 sccm for 20 minutes, 70
MHz/8 watt and chamber pressure at 300 mTorr. The RF power take a role in plasma
formation, it had to appropriate with methane precursor concentrations. In contrast, the
lowest RF power went to caused a little plasma gained but resulted in more deposited
carbon atoms. Carbon based materials structure synthesized by PECVD were also
influenced by catalyst transition metal. In this research there were used multilayer
annealed silver films on glass substrate in four condition, one until four coating and
each of them has poly crystal structure, the (111) crystal direction at 2θ = 38o while the
(200) at 2θ = 44.26o and (222) at 2θ = 81.85o.
Keywords: graphene nanoribbon, silver thin film and PECVD
Topic: Materials Sciences and Technology
120
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MAT-02
Synthesis of Magnetized Photocatalyst Fe3O4/SiO2/TiO2 by
Heteroagglomeration Method
Sari Hasnah Dewi1,2, Sutanto1 dan Adel Fisli2
1 Chemistry Dept, Pakuan University Bogor
2 Center of Science and Technology for Advanced Materials – Batan, Kawasan
Puspiptek Serpong
Abstract
Magnetic
photocatalysts
Fe3O4/SiO2/TiO2
have been prepared using
heteroagglomeration method. Synthesis of magnetic photocatalyst Fe3O4/SiO2/TiO2
has carried out through four stages: (1) synthesis of photocatalyst TiO2 nanoparticles by
TiCl4 co-precipitation in ammonia solution, (2) synthesis of Fe3O4 nanoparticles
through precipitation method using a mixture of Fe (III) / Fe (II) (2: 1 mole ratio) in
ammonia solution, (3) coating with SiO2 through hydrolysis of silicate ion, (4) in the
final stage, Fe3O4/SiO2 were mixed with TiO2 in hetero-agglomeration manner. X-ray
diffraction (XRD) analysis shows the presence of combined magnetite (Fe3O4) and
TiO2 phase in the composite. Vibrating sample magnetometer (VSM) analysis shows
the magnetic substance with superparamagnetic behavior. Fourier transform infrared
(FTIR) spectroscopy analysis shows the formation of a new bond of Si-O-Ti after
combination of Fe3O4/SiO2 and TiO2. Analysis by transmission electron microscopy
(TEM) shows the pattern of Fe3O4/SiO2 and TiO2 aggregation with a size of 20 nm.
The dyes elimination test show that the synthesized magnetite photocatalyst
Fe3O4/SiO2/TiO2 have photocatalytic properties and also adsorption properties so that
it has a good performance at methylene blue removal in the water. This photocatalyst is
able to repeat the process at least for 4 times so that the materials are more efficient in
application.
Keywords: Magnetic Photocatalyst, Heteroagglomeration, Nanoparticles
121
August 19-20, 2015
MAT-03
Optimization of the Composite Repair Work using 8-Harness Satin Dry
Glass Fabric and Epoxy Resin LY5052/HY5052 Materials through the
Vacuum Bagging Technique
Hartono 1) Mochammad Rifai 1) Handoko Subawi 2)
1) Civil Aviation Safety and Engineering Academy (CASEA) Surabaya, Indonesia
2) PT Dirgantara Indonesia, Indonesia
Abstract
In composite repair terminology, the intermingled fiber joints (IFJs) concept is clearly
identified as the most effective in transferring stress. However, the practical application
leads to apply the laminated fiber joints (LFJs) concept for composite repair. The LFJs
become almost as strong as the IFJs as the jointed zone length increases. The LFJs
concept was implemented to set up the repair configuration for this work using epoxy
resin LY5052/HY5052 embedded in fiberglass fabric type-7781 TF-970 (8 harness
satin) and additional type-120 TF-970 (4 harness satin) for cover layer. It is identified
that fracture tendency as the result of crack propagation starts from the free edges. This
tendency is alleviated by applying vacuum bag to compact the laminate system. If
necessary, additional accelerated curing was performed at low temperature for short
time. However, this repair work preferably applying natural overnight cure to ensure the
structure stability. Additionally, the repair handling and waiting purposes take 40% out
of the effectively repair time. The waiting time should be anticipated in the composite
repair to reduce wasting time for unproductive output.
Keywords: Composite, Laminated Fiber Joint, Layup, Repair, Vacuum Bagging
122
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MAT-06
Structure Evolution of Fe-50%Al Coating Prepared by Mechanical Alloying
Didik Aryanto and Toto Sudiro*
Research Center for Physics, Indonesian Institute of Sciences,
Serpong 15314, Tangerang Selatan, Banten, Indonesia
Abstract
The deposition of Fe-50%Al coating (in at%) on low carbon steel was successfully
prepared using mechanical alloying (MA). The coating process was performed in a
shaker mill with variation of milling times from 30 minute to 180 minute. The deposited
coating was then annealed at 600oC for 1 hour in a vacuum furnace of 5.6 Pa. The
morphology and structural evolution of mechanical alloyed samples before and after
heat treatment were investigated by scanning electron microscopy (SEM) and X-ray
diffraction (XRD). The results revealed that before heat treatment, the deposited coating
on low carbon steel is composed of Fe and Al. After 180 minutes of milling time, the
Fe(Al) solid solution was formed. Metalographic observation indicated that surface of
Fe-Al coating is rough and the coating thickness was increased with increasing milling
time. Meanwhile, the heat treatment process led to structural evolution by forming FeAl
intermetallic phase on the surface of low carbon steel.
Keywords: Fe-Al, Mechanical Alloying, X-ray diffractions, Scanning Electron
Microscopy
123
August 19-20, 2015
MAT-07
Effect of surface roughness on contact angle measurement of nanofluid on
metal surface of SS 304 by sessile drop
Djoko Hadi Prajitno, Alan Maulana and Dani Gustaman Syarif
PSTNT-BATAN
Abstract
The contact angle play an important role in the mass and heat transfer. The stainless
steel 304 has been used for nuclear power plant structure material until now. The
experimental to measure contact angle nanofluid contain nano particle zirconia on metal
surface of stainless steel 304 with sessile drop method were conducted. The
measurement to measure the static contact angle and drop nano fluid contain nano
particle zirconia on stainless steel with different surface roughness was carried out. It
was observed that stainless steel 304 lose their hydrophobic properties with decreasing
surface roughness of stainless steel during drop of nano fluid. As a result the contact
angle of nano fluid is decrease with decreasing surface roughness of stainless steel.
While the magnitude diameter of drop nano fluid and wetting surface is increase with
decreasing surface roughness.
Keywords: contact angle, nanofluids, stainless steel 304, zirconia
124
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MAT-08
The Effect of Sintering Atmosphere on Electrical Characteristics of
Fe2TiO5 Pellet Ceramics Sintered at 1200oC for NTC Thermistor
Wiendartun1,a) and Risdiana2,b), Fitrilawati3,b), R.E.Siregar4,b)
a) Department of Physics Education, Indonesia University of Education Jl. Setiabudi
229, Bandung 40514, Indonesia
b) Department of Physics, Padjadjaran University Jl. Raya Bandung-Sumedang km.21
Jatinangor, Sumedang 45363, Indonesia
1) Corresponding author: wien@upi.edu
2) risdiana@phys.unpad.ac.id
3) fitrilawati@phys.unpad.ac.id, 4) resiregar@phys.unpad.ac.id
Abstract
Abstract. Fabrication of Fe2TiO5 pellet ceramics using powder metallurgy technique for
NTC thermistor has been carried out. Effect of sintering atmosphere (Oxygen, Air and
Argon Gas) has been studied. X-ray diffraction analyses (XRD) was done to know
crystal structure and phases formation. A SEM analysis was carried out to know
microstructure of pellets. Electrical properties characterization was done through
measurement of electrical resistance at various temperatures (room temperature to
200oC). The XRD data showed that the pellets crystallize in orthorhombic. The
presence of second phase could not be identified from the XRD analyses. The SEM
images showed that the grains size of the ceramic sintered in oxygen gas is smaller than
that of the ceramic sintered in air and argon gas. Electrical data showed that the pellet
ceramics sintered in oxygen gas had the largest resistance, thermistor constant,
activation energy and sensitivity compared to those sintered in air and argon gas. From
the electrical characteristics data, it was known that the electrical characteristics of the
Fe2TiO5 pellet ceramics followed the NTC characteristic. The value of B and RRT of
the produced Fe2TiO5 ceramics namely B = 3945-4762 K and RRT = 922-6535 Ohm,
fitted market requirement and can be used for temperature sensor.
Keywords: Keywords: Ceramics, Fe2TiO5, Pellet , NTC Thermistor, Sintering
atmosphere
125
August 19-20, 2015
MAT-09
Electric Double-Layer Capacitors with Tea Waste Derived Activated
Carbon Electrodes and Plastic Crystal based Flexible Gel Polymer
Electrolytes
M. Suleman a), M. Deraman a*), M. A. R. Othman a), R. Omar a), M. A. Hashim b),
N. H. Basri a), N. S. M. Nor a), B. N. M. Dolah a), M. F. Y. M. Hanappi a), E. Hamdan a),
and N. S. Sazali a)
a)School of Applied Physics, Faculty of Science and Technology,
National University of Malaysia, 43600, Bangi, Selangor
*madra@ukm.edu.my
b)Department of Applied Physics, Faculty of Science and Technology,
Universiti Sains Islam
Malaysia, Bandar Baru Nilai, 71800 Nilai, Negeri Sembilan, Malaysia
Abstract
Electrical double-layer capacitors (EDLCs) belong the class of supercapacitors which
employ various forms of carbon such as activated carbon powder/fibers/fabrics, CNTs,
graphene etc., as an electrode material. The activated carbons, derived from natural
resources, agricultural and livestock wastes are the potential electrode materials whose
surface area and porosity can be tailored by utilising different precursors and
preparation methods that result in high performance, environmental friendly, and cost
effective energy storage devices including supercapacitors. Recently, activated carbons
derived from tea waste have been investigated as potential electrode material for the
EDLCs.
Most of the literatures on EDLCs reported so far utilise liquid electrolytes. But owing to
various limitations including leakage of electrolytes, bulky design, corrosion of
electrodes, etc., liquid electrolytes have been replaced by gel polymer electrolytes
(GPEs) flexible films. Further, in recent years, few polymer-based electrolytes are
reported incorporating plastic crystalline material succinonitrile (SN) as solid
solvent/plasticizer to replace organic solvents or ionic liquids (ILs). These GPEs have
excellent properties such as non-volatile and less flammable character as compared to
liquid organic solvents like acetonitrile, PC, etc., ability of proper electrode-electrolyte
contacts in devices and safely concern.
In this report, we present an EDLC with tea waste derived activated carbon electrodes
and flexible GPE films comprising of solutions of sodium trifluoromethane sulfonate
(NaTf) in a plastic crystal succinonitrile (SN) and a host polymer poly(vinylidine
fluoride-co-hexafluoropropylene) (PVdF-HFP). The activated carbon was prepared
according to the procedure described elsewhere [Z. Hu et al., Adv. Mater. 12 (2000) 62]
and GPE according to solution-cast method. The GPE film exhibits the conductivity of
~3.6×10-3 S cm-1 at room temperature with its electrochemical stability window (ESW)
of ~ (-2 to +2V).
126
Book of Abstract |
The performance of the EDLC would be characterized using various techniques such as
electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and chargedischarge. The cell offers a specific capacitance of ~ 270 Fg-1 which is comparable to
the values evaluated from CV and charge-discharge methods.
Keywords: Electric double layer capacitors, Activated carbon, Plastic crystal, Gel
polymer electrolytes,
127
August 19-20, 2015
MAT-10
Graphene/Semicrystalline Carbon Derived from Amylose Films for
Supercapacitor Application
M. Deraman*), M. Suleman, N. S. Sazali, M. F. Y. M. Hanappi, N. H. Basri,
B. Yatim, C. C. Yap, R. Awang, N.S. M. Nor, M.A.R. Othman, R. Omar, M.R.M. Jasni
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan
Malaysia, 43600 Bangi, Selangor, Malaysia
*mderaman113@gmail.com
Abstract
Graphene/semicrystalline carbon (GSC) are produced by carbonization of amylose films
coated on copper substrate by a casting method. Carbonization is carried on the films
coated copper which are sandwiched between the composite of pre-carbonized biomass
powder added with nickel oxide. The GSC are characterized by XRD and Raman
spectroscopy techniques to determine their microcrystallite interlayer spacing, stackwidth and stack-height; and the intensity ratio between Raman D-, D2- and G-bands
peak-intensities; respectively. The microstructure and elemental composition of the
samples are investigated by FESEM and EDX techniques, respectively. AFM is used to
observe the samples films morphology. The role of nickel oxide as a catalyst for
carbonization and as capping for preventing molecules evaporation, and copper
substrate surface as a planar template for layer structure formation are investigated to
observe their role in enhancing the carbon atoms planar arrangement corresponding to
the GSC structure. In addition, the role of pre-carbonized biomass as nickel oxide
‘holding’ material and an application of GSC as supercapacitor electrodes is also
discussed.
Keywords: Graphene, Supercapacitor, Electrodes, Pre-carbonized biomass
128
Book of Abstract |
MAT-11
Characterization of Nephelium Lappaceum Skin Extract as a Dye
Sensitized Solar Cell
Joko Budi Poernomo 1,2*; Rahmat Hidayat 5; Ana Hidayati Mukaromah 4;
Hendri Widiyandari 3; Putut Marwoto 1
1. Post Graduate Program Universitas Negeri Semarang
2. Physics Education Department Universitas Islam Negeri Walisongo Semarang
3. Physics Department Universitas Diponegoro Semarang
4. Health Analyst Study Program Universitas Muhammadiyah Semarang
5. Physics Department Institut Teknologi Bandung
* Email : po3rnomoextra@gmail.com
Abstract
Nephelium lappaceumis a popular fruit in Indonesia containing anthocyanin. The color
of nephelium lappaceum anthocyanin is due to conjugated double bondwhich can absorb
light on the range of visible light. This causes it to be a potential dye sensitized solar cell
(DSSC). The nephelium lappaceum extract can be taken through extraction technique,
called maserasi. The process of developing DSSC material was initiated by preparing
TiO2 photoanode using a conventional sintering procedure. It was, then, followed by
doping TiO2 on the Fluoride doped tin oxcide(FTO) with resistance value of 10-20
ohm/q. Finally, the electrode counter made of platinum paste was developed by
implementing conventional sintering procedure. All of the above processes were then
continued by the DSSC assembly. In this process, the TiO2 photoanode which has
passed the absorbtion process for 24 hours was doped on the counter electrode. After
doping, the process was stoped by doing electrolyte solution filling into prepared
electrode counter holes. In order to characterize the DSSC, a solar simulator connected
to a computer was employed. Based on this characterization process, it was found that
the maximum value of Voc was 0.29 V, the maximum value of current density was 0.56
mA / cm2, the maximum power was 0.062 mW / cm2 and efficiency of 0.063.
Keywords: Nephelium lappaceum extract, DSSC, TiO2 Photoanoda, solar simulator.
129
August 19-20, 2015
MAT-12
Observation on Potential Energy Change and Contactopy Change in 2-D
Compaction Inhibited Brazilian Nut Effect
Trise Nurul Ain a*), Hari Anggit Cahyo Wibowo a), Yayan Prima Nugraha b),
Siti Nurul Khotimah c), Sparisoma Viridi c)
a) Master of Physics Teaching, Institut Teknologi Bandung
*trisenurulain@gmail.com
b) School of Electrical Engineering and Informatics, Institut Teknologi Bandung
c) Nuclear Physics and Biophysics Research Division, Institut Teknologi Bandung
Abstract
Compaction inhibit Brazilian nut effect experiment by using acrylic material as bed and
intruder has done. There are five diameter of granular bed (cm): 0.68, 0.53, 0.47, 0.42,
0.375 and single intruder by diameter 2.4 cm used in this experiment. Vibration taken
under Γ = 3 and frequency (Hz): 14, 15, 16, 17, 18, 19. Discontinue vibration technique
is used in this experiment. Vibrating system is done around one second then stop for a
moment before next vibration. This technique used to make easier the process photo
taken in each second. These photos then processed to gain contacttopy and height of
system. Based on the data, contacttopy of all system observed are increasing. The
average of contacttopy without intruder system toward ratio of granular bed diameter
and the width of shaking place giving logarithmic equation. This equation shows the
value of contacttopy without intruder system under certain ratio of granular bed
diameter and the width of shaking place. Potential energy evolution for both system
without intruder and with intruder are decreasing as the height system is decreasing.
These result show that in the case of compaction inhibiting Brazilian nut effect
phenomena still obey the minimum energy principle (MEP). The whole results of this
research confirm that increasing contacttopy and decreasing potential energy not only
valid for Brazilian nut effect, but also for compaction inhibiting Brazilian nut effect
phenomena.
Keywords: potential energy; Brazilian nut effect; contacttopy; two dimension material
130
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MAT-14
Papaya Seed as A Low-Cost Sorbent for Removing Cr(VI) from The
Aqueous Solutions
Atik Rahmawati1,2, Putut Marwoto1, Anita Karunia Zustriani2
1Program Pascasarjana Universitas Negeri Semarang
2Chemistry Education Department-Faculty of Islamic Education and Teacher Training,
UIN Walisongo
email: atix_01@yahoo.com
Abstract
The presence of chromium (VI) contaminants and their toxicity in aqueous streams is
one of the most important environmental problems. Adsorption is one of the effective
techniques can be used for removing metal from polluted wastewater. This research was
initiated by preparing sorbent made of papaya seed and determining papaya seed’s
functional group contents by implementing FT IR. The adsorption process was
conducted by employing batch method. The adsorption aspects studied involve the pH
effects, initial Cr(VI) concentration, and contact time on the adsorption of Cr(VI) by
papaya seed. FT IR analysis results of papaya seed showed that the main of functional
groups are carbonyl, hydroxyl, and carboxylic. It was also found that the effective pH
for maximum uptake of Cr(VI) is 2.0 and the increase of contact time will increase
Cr(VI) uptake. In addition, the equilibrium was reached after 40 minutes interaction and
the increase of initial chromium (VI) concentration escalated its uptake percentage. All
these results indicated that papaya seed is a potential sorbent for removing Cr(VI) from
aqueous solutions.
Keywords: papaya seed, adsorption, Cr(VI)
131
August 19-20, 2015
MAT-15
Resistance Switching Mechanism Correlated to Topotactic Phase
Transformation
Octolia Togibasa 1*) and Chang Uk Jung 2)
(1) Department of Physics, University of Cenderawasih, Jayapura 99358, Indonesia.
*octolia@unicen.ac.id
(2) Department of Physics, Hankuk University of Foreign Studies, Yongin 449791,
Korea.
Abstract
A reversible change between an insulating state (high resistance state) and a conducting
state (low resistance state) in many transition metal oxides have been understood in
terms of resistance-switching phenomena. Generally, the possible driving mechanism
for resistance switching can be classified as a filamentary-type or interface-type. In a
filamentary-type, the resistance switching originates from the formation and rupture of
conductive filaments in an insulating matrix. While in an interface-type, the resistance
switching takes places at the interface between the metal electrode and the oxide. The
crystal structure of strontium cobaltite (SrCoOx) has been known to undergo topotactic
phase transformation between two distinct phases, i.e. insulating brownmillerite
(SrCoO2.5) and conducting perovskite (SrCoO3-) depending on the oxygen content. In
this study we discovered a novel resistance switching mechanism related to topotactic
phase transformation. We fabricated the Au/SrCoO2.5/SrRuO3/SrTiO3 (001) devices to
study the resistance switching phenomena. The bipolar switching behavior from the
Au/SrCoO2.5/SrRuO3 memory cell was clearly observed, together with the observation
of forming voltage lower than set voltage (VF)
Keywords: topotactic transformation, resistance switching, novel mechanism
132
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MAT-16
Performance Of Polyaniline/Zn Rechargeable Battery With Buffer Control:
A Study Of The Effect Various Electrolyte Acidity
Said Ali Akbar1,*, Achmad Rochliadi2,a), Veinardi Suendo2,b)
1) Master student at Faculty of Mathematics and Natural Sciences, Institut Teknologi
Bandung, *aligitudeh@gmail.com
2) Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung,
a)
achmad@itb.ac.id, b)vsuendo@chem.itb.ac.id
Abstract
Polyaniline (PANI) was synthesized by electropolymerization method on surface of the
graphite sheet (GS) using a constant voltage at 0.7 V with Ag/AgCl (saturated) as a
reference electrode. Furthermore, the result of PANI polymerization in the form of a salt
emeraldin film was characterized using FT-IR spectroscopy, Raman spectroscopy, and
UV-Vis absorption. The performance of the battery PANI/Zn tested through the chargedischarge process of 50 cycles using a contant current at 10 mA. Resistance properties
the batteries were analyzed by Electrochemical Impedance Spectroscopy (EIS) with the
current 1 mA at a sweep frequency of 0.1 Hz to 100 mHz. Battery system was made as
configuration. In this study, the pH of
electrolyte was controlled using a buffer
with a certain ratio, pH
3 (100: 1), 4 (10: 1), 5 (1: 1), 6 (0.1: 1), 7 (0.01: 1). Based on the charge-discharge
process, the lose capacity until 60th cycles was 75.5%; 37.8%; 6.87%; 23.5%; and
100% respectively. Furthermore, the impedance analysis shown the solution resistance
( ) 1.55; 1.52; 1.34; 1.22; and 2.45 respectively, then the charge-transfer resistance
( ) was 65.2; 36.2; 12.2; 20.6; and 248.5 respectively. This case indicated the active
reaction between Zn metal with
from the electrolyte at pH 3 and 4. This reaction
involved the formation of
that disrupted redox reaction of Zn and PANI electrodes.
Therefore, the battery can’t charge-discharge each cycles so perfectly and
at this pH
larger than pH 5 and 6. Meanwhile, at pH 7 revealed large resistance and lose capacity
to 100% in almost each cycles. This case, It is caused by Zn inactive for reaction at pH
7. Therefore, the battery showed best performance with buffer control at pH 5 and 6.
Keywords: PANI, electropolymerization, charge-discharge, electrolyte acidity, lose
capacity, resistance
133
August 19-20, 2015
MAT-18
Synthesis of LiFePO4/Li2SiO3/reduced graphene oxide (rGO) Composite
via Hydrothermal Method
Muhammad Arifin a), Akfiny Hasdi Aimona a), Muhammad Miftahul Munir b),
and Ferry Iskandar a,c*)
(a) Physics of Electronic Materials Research Division
(b) Theoretical High Energy Physics and Instrumentation Research Division
Department of Physics, Institut Teknologi Bandung, Bandung 40132 Indonesia
(c) National Research Center for Nanotechnology (NRCN)
Institut Teknologi Bandung, Bandung 40132 Indonesia
*E-mail: ferry@fi.itb.ac.id
Abstract
A LiFePO4 is one type cathode active material for lithium ion battery. It has a high
electrochemical performance. However, it suffers from certain disadvantages such as
very low intrinsic electronic and ionic conductivities. Therefore, a new study is needed
to increase its conductivities. In this study, we have done a study to the addition of
Li2SiO3 and reduced graphene oxide (rGO) to LiFePO4. The objectives of this research
are synthesizing LiFePO4/Li2SiO3/rGO via hydrothermal method. The fourier
transform infrared spectroscopy (FTIR) spectra shows that the peaks are corresponding
to vibration of LiFePO4/Li2SiO3. Further, the scanning electron microscopy (SEM)
images showed that rGO was distributed on LiFePO4/Li2SiO3 structure. The X-ray
diffraction (XRD) patterns confirmed a single phase of LiFePO4.
Keywords: LiFePO4/Li2SiO3, reduced graphene oxide (rGO), synthesis, hydrothermal.
134
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MAT-20
Preparation and characterization of 7- 8 mole% YSZ and 12 mole% CSZ
for electrolyte SOFC
B. Budiana, F. Fitriana, N. Ayu, S. Suasmoro
INSTITUT TEKNOLOGI SEPULUH NOPEMBER( ITS) SURABAYA
Abstract
The study of 7YSZ (93% ZrO2-7%Y2O3), 8YSZ (92% ZrO2- 8%Y2O3), and CSZ
(88% ZrO2-12% CaO) as SOFC electrolytes have been carried out successfully. 7YSZ
and 8YSZ powders were prepared by solid state reaction method of mixing Y2O3 and
ZrO2 followed by calcination at 1350 °C for 1 hour while CSZ was commercial
products. Then 7YSZ, 8YSZ, and CSZ by 1.2 gr each were individually pressed at 40
MPa and sintered at 1550 °C for 4 hours. Identification of phases and their percentage as
well as crystallography were described based on XRD data through Rietveld’s
refinement, further analysis for CSZ was also through EDX analysis. Rietveld
refinement revealed that 7YSZ comprised 47.27% monoclinic, 52.65% cubic, and
0.008% Y2O3 cubic, while 8YSZ comprised 48.45% monoclinic, 49.32% cubic, 2.23%
Y2O3 cubic and CSZ has 88 % ZrO2 and 12% CaO. Electrical characterization was
carried by Solartron Impedance Analizer for measuring electrical properties of the
sample. Ionic conductivity and activation energi were obtained from Cole-Cole Plot.
From this experiment showed that ionic conductivity of YSZ’s and CSZ’s powder were
fitted with Arhenius equations.
Keywords: Cole-cole Plot, CSZ, Electrolyte, YSZ, SOFC
135
August 19-20, 2015
MAT-21
Preliminary Study of Synthesis and Characterization of Nanomaterial from
Ipomoea Aquatica Forsk
Altje Latununuwe 1), Monalizza. H. Latununuwe 2), Estevanus. K. Huliselan 2),
Toto Winata 3)
1. Physics Education, Pattimura University
2. Moluccas Scientific Foundation
3. Physics Department, ITB
Abstract
Nano material has been synthesized from species Ipomoea Aquatica Forsk with a
diameter of about 70-150 nm by using a simple method of heating. This material is
characterized using SEM-EDX and XRD. This result is an initial study of the synthesis
of nano scale materials derived from natural materials. Based on the results of EDX, the
number of atomic C, Ca, Fe and Pb are 94.69%, 4.54%, 0.31% and 0.46% respectively.
Keywords: Nano, Carbon, Ipomoea Aquatica Forsk, heating
136
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MAT-22
Design, Synthesis, and Characterization of Molecularly Imprinted Polymer
(MIP) with D-glucose as Template
Yanti1, Tati Nurhayati1, Idha Royani1,3, Widayani2, and Khairurrijal1,a)
1Physics of Electronic Materials Research Division,
2Nuclear Physics and Biophysics Research Division,
Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia
3Dept. of Physics, Faculty of Mathematics and Natural Sciences,
Sriwijaya University, Indonesia
a)Corresponding author: krijal@fi.itb.ac.id
Abstract
In this study, molecularly imprinted polymer (MIP) were prepared by using D-glucose
as the template and methacrylic acid (MAA) as the functional monomer. The obtained
MIP were characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy, to study template imprinting result. As a comparison, the similar
characterization also carried out for the respective non imprinted polymer (NIP). It was
found that the polymer has semicrystalline structure, with crystallinity percentage of the
NIP, of the unleached-MIP, and of the leached-MIP is 60.8%, 56.5% and 66.5%,
respectively. XRD patterns show that the peak intensity increases as D-glucose content
decrease. The FT-IR spectra of the MIP indicate the detailed interaction of template and
functional monomer, through the presence of C-H and C-O stretching vibration at 2859
cm-1 and 1293 cm-1, respectively. The peak centered at 1076 cm-1 is attributed to the
C-O-C stretching of the D-glucose ring. The peak at 708 cm-1 corresponding to O-H
out-of-plane further confirms the presence characteristic peaks of D-glucose. Those
results show that the MIP prepared using D-glucose as the template has been
successfully synthesized.
Keywords: molecularly imprinted polymer, D-glucose, template, XRD, FT-IR
137
August 19-20, 2015
MAT-23
Synthesis and Study of Guest-Rebinding of MIP Based On MAA Prepared
using Theophylline As Template
Tati Nurhayati 1), Yanti 1), Idha Royani 1), Widayani 2) and Khairurrijal 1)
1 Physics of Electronic Materials Research Division,
2 Nuclear Physics and Biophysics Research Division
Abstract
A molecularly imprinted polymer (MIP) based on MAA has been synthesized using
cooling-heating method. Pre-polymer mixture was prepared by mixing methacrylic acid
(MAA) as monomer, theophylline (THO) as template molecule, ethylene glycol
dimethacrilate (EDMA) as cross-linking agent, and benzoyl peroxide (BPO) as initiator
in chloroform as porogenic solvent. The polymerization process was initiated by thermal
decomposition of the initiator at 60oC after cooling treatment at -5oC. After 12 hours, a
rigid polymer was obtained and followed by grinding the polymer and removing the
template from MIP. As a reference, a non-imprinted polymer (NIP) has also been
synthesized using similar procedure by excluding the template. FTIR study was carried
out to investigate the presence of theophylline in the polymer matrix of as-prepared
MIP, MIP after template removal, and NIP. The spectra indicate that theophylline was
successfully bound to the as-prepared MIP through hydrogen bonding. The capability of
guest-rebinding of the MIP was analyzed through Batchwise guest-binding experiment.
The result showed that for initial concentration of theophylline in methanol/chloroform
(1/1, v/v) of 0.333 mM , the adsorption capacity of the MIP was 10.15 μmol/g.
Compared to the MIP, the adsorption capacity of the NIP was only 5.52 μmol/g.
Keywords: Batchwise guest-binding; Cooling-heating; MIP; Theophylline
138
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MAT-24
Electrical Properties of (K0.4Na0.4Ba0.16M0.04)(Nb0.8Ti0.2)O3 with
(M=Ca,Sr) System Using Impedance Analyzer
E. Desmelinda, S. Suasmoro* and A. M. Maghfiroh
Department of Physics
Institut Teknologi Sepuluh Nopember, Indonesia
Abstract
Perovskite material (K0.4Na0.4Ba0.16M0.04)(Nb0.8Ti0.2)O3 with (M=Ca,Sr) have
been synthesized through solid state reaction of K0.5Na0.5NbO3 and oxalate
coprecipitation of Ba0.8M0.2TiO3. K0.5Na0.5NbO3 was prepared via solid state
reaction of K2CO3, Na2CO3 and Nb2O5. Ba0.8M0.2TiO3 was prepared via oxalate
coprecipitation.
XRD
analysis
show
that
single
phase
of
(K0.4Na0.4Ba0.16M0.04)(Nb0.8Ti0.2)O3 with (M=Ca,Sr) have been performed
successfully with tetragonal perovskite structure. Electrical properties of these materials
were investigated using impedance analyzer. K0.5Na0.5NbO3 exhibited two Curie
temperature due to its phase transition: orthorhombic-tetragonal at temperature ~290°C
and
tetragonal-cubic
at
temperature
~430°C.
However
(K0.4Na0.4Ba0.16M0.04)(Nb0.8Ti0.2)O3 with (M=Ca,Sr) only have one Curie
temperature due to phase transition from tetragonal to cubic. For M=Ca Curie
temperature ~400°C, while M=Sr Curie temperature ~440°C. This Curie temperature
should related to material tetragonality. For M= Ca, c/a=1.0055 while M=Sr,
c/a=1.0063. Furthermore the relative permittivity of M=Sr was higher than for M=Ca.
Keywords: coprecipitation, Curie temperature, oxalate, permitivity
139
August 19-20, 2015
MAT-25
Investigation on the influences of nano-porousity in DSSC type of solar cells
Trisa Apriani, Waode Sukmawaty Arsyad, Priastuti Wulandari, Rahmat Hidayat
Abstract
Dye-sensitized solar cell (DSSC) is still interesting because the simplicity in fabrication
and richness in sensitizing dye variety. DSSC structure mostly consists of nanoporous
TiO2 layer as phootoelectrode, dye as photosensitizer, electrolite as redox mediator, and
platinum layer as electrode counter. The thickness and quality of nanoporous TiO2 layer
is one of crucial factors that determine the working performance and efficiency of the
fabricated solar cells. However, the evaluation of the porousity of this TiO2 layer is not
easy as there is no established method for evaluating nano-porous in thin film.
Therefore, in this work we tried use a simple qualitative method to distinct the different
degree of porousity or void fraction in TiO2 film, which is based on the change of light
scattering upon solvent penetration. Different TiO2 layers with different preparation
condition parameters, namely thickness and heat treatment duration, were prepared.
Those TiO2 were then used to build a complete DSSC of a sandwich type. The
characterization results were then showed that the cells using TiO2 with larger change in
the light transmission exhibits better working performance and better efficiency. In this
work, the best power conversion efficiency (PCE) resulted was about 5.3% measured
under 100 mW/cm2 irradiation.
Keywords: Dye Sensitized Sollar Cell (DSSC), TiO2 , nano-porous, light scattering
140
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MAT-26
Analysis Microstructure, physical properties and Magnetic Fluks Density of
Permanent Magnet BaFe12O19 Prepared by Milling and Sintering
Priyo Sardjono, Suprapedi, Muljadi, Nenen Rusnaeni Djauhari
Research Center for Physics- Indonesia Institute of Sciences
Kawasan PUSPIPTEK Serpong, Tangerang Selatan, Prov. Banten, Indonesia
Email : priyo_sardjono@yahoo.com and muljadi2002@yahoo.com
Abstract
Permanent Magnet BaFe12O19 has been made by milling and sintering method, and
BaFe12O19 powder from commercial was used for this experiment as raw material. The
purpose of this experiment is to know the influence of the sintering temperature to the
microstructure, physical and magnetic properties of BaFe12O19 materials. The raw
materials was pulverized by using ball mill for 15 hours then the fine powder after
milling was compacted at pressure 400 MPa to obtain a pellet with diameter 16 mm and
thickness 4 mm. The pellet was sintered with heating rate 10 oC / minute and at
temperature 1050, 1100, 1150 and 1200oC, holding time for each sintering temperature
was 1 hour. The microstructure and particle size for milled powder were investigated by
using XRD, SEM and Particle Size Analyzer (PSA). The results show that the powder
after milling has crystal structure hexagonal BaFe12O19 as dominant phase,
unhomogenous size and shape of grain, and average particle size about 19.60 µm. The
sintered samples were characterization such as : measurement bulk density, shrinkage
and magnetic properties. The optimum sintering temperature is 1150 oC to reach high
bulk density (4.71 g/cm3), constants shrinkage (12.07 %) ,magnetic flux density (500 –
600 Gauss), remanence Br about 1.79 kGauss, Coercivity about 1.75 kOe.
Keywords: ball milling, Ferrite BaFe12O19, sintering, magnetic properties,density,
shrinkage
141
August 19-20, 2015
MAT-29
TiC and α-Ti coating on graphite prepared by Powder Immersion Reaction
Assisted Coating (PIRAC)
Farah Aulia Rahma Wati, Dian Agustinawati, Nur Muhaimin, Suasmoro
Institut Teknologi Sepuluh Nopember (ITS) Surabaya
Abstract
Study of the formation of TiC and α-Ti coating on graphite has been successfully carried
out by means PIRAC method. Graphite blocks were immersed into a mixed of titanium
powder containing 4 wt% iodine and then proceed at 1000°C for 10 hours in argon
atmosphere. Two different treatment of graphite blocks were carried out; with and
without dispersion ZrO2 in the graphite surface before heat treatment. Characterizations
of coated surface were include X-ray diffraction for phase and crystalline analysis, SEM
and EDX analysis to determine the topography and distribution of elements in coated
film. For sample without ZrO2, as a result of interaction between titanium and graphite,
carbon diffusion occurred and TiC coated film were formed. Whereas sample with the
dispersant of ZrO2 on the graphite surface caused diffusion of carbon into the titanium
did not occur, as a result α-Ti were formed. Oxidation test at 1000°C in air showed that
TiC and α-Ti coated film underwent oxidation. In both cases TiO2 was observed as a
results of oxidation.
Keywords: diffusion, oxidation, TiC, ZrO2
142
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MAT-30
Influence of air atmosphere on electrolyte stability and solid electrolyte
interface formation in lithium ion battery studied by infrared spectroscopy
Herlin Tarigan, Atut Reni Septiana, Rahmat Hidayat
Abstract
Lithium ion batteries (LIB) are used in many mobile devices for electrical energy
storage and one of important components in green energy technology. The working
principle is based on the reduction and oxidation (redox) of lithium ion inside. The
reaction undergoes inside an electrochemical cell structure, and therefore requires
electrolyte solution. However, many electrolyte solutions for LIB, such as LiPF6, are
unstable and highly reactive to the air atmosphere. In addition, the redox of electrolyte
will generate solid electrolyte interface (SEI) only at the first charging. This layer
should be also thin enough, in tens of nanometers, and still allowing the penetration of
lithium ions. The formation of SEI layer is critical to the LIB performance, including
charge-discharge cyclability. The experimental work results show the continuing
formation of SEI layer due to electrolyte solvent that was interacted with the air
atmosphere. The infrared spectrum indicates that the layer was formed by the
decomposed solvent molecules reacted with lithium ion. This process competes with the
redox of Li ions and consumes the Li ions such that significantly degrade the LIB
capacity and cyclability, as indicated from the measurement results of cyclic voltametry
and electrochemical impedance spectroscopy.
Keywords: lithium ion battery (LIB), solid electrolyte interface (SEI), infrared
spectroscopy, green energy
143
August 19-20, 2015
MAT-32
Electronic and Optical Properties of CuO Based on DFT+U and GW
Approximation
Faozan Ahmad, M Kemal Agusta and Hermawan K Dipojono
Department of Engineering Physics, Bandung Institute of Technology
Department of Physics, Bogor Agricultural University
Abstract
We report ab initio calculations of electronic structure and optical properties of
monoclinic CuO based on DFT+U and GW approximation. CuO is an antiferromagnetic
material with strong electron correlations. DFT+U and GW approximation has been
utilized successfully to calculate band gap and DOS of strongly and weakly correlated
system, respectively. Here we compare the DFT+U and GW method in predicting the
electronic structure and optical properties of CuO.
Keywords: Cupric oxide, DFT+U, dielectric function, GW approximation
144
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MAT-33
Charge Transfer Dynamics of a Highly Efficient Cyanidin-3-O-Glucoside
Sensitizer for Dye-Sensitized Solar Cells
Eka Cahya Prima1,2,3, Brian Yuliarto1,a), Suyatman1, Hermawan Kresno Dipojono2
1 Advanced Functional Material Laboratory, Engineering Physics,
2 Computational Material Design and Quantum Engineering Laboratory,
Engineering Physics, Institut Teknologi Bandung, Indonesia
3 International Program on Science Education, Universitas Pendidikan Indonesia,
Indonesia.
a)email : brian@tf.itb.ac.id
Abstract
A highly efficient natural dye sensitizer extracted from black rice pigment containing
cyanidin-3-O-glucoside structure (0.303 mM) has been extracted without purification
using neutral ethanol solution for 3 weeks at dark condition and room temperature. The
anatase TiO2 photoanode was dipped into dye solution within 4 days. Its electrode was
firmly sealed to be a cell and was filled by I-/I3- electrolyte using vacuum technique. As
a result, the overall solar-to-energy conversion efficiency was 2.17% at AM 1.5
illumination (100 mW.cm-2). The cyclic voltametric analysis has reported the interfacial
electronic band edges of TiO2-Dye-Electrolyte. Furthermore, electrochemical
impedance spectroscopy has revealed the interfacial charge transfer dynamics among
TiO2-dye-electrolyte. The cell has effective electron diffusion coefficients of 0.18
cm2/s, Dye-TiO2 electron transfer time of 7.51 µs, effective diffusion length of 23.49
μm, chemical capacitance of 12.89 μF, electron lifetime of 3.63 ms, charge injection rate
of 1.33 x 105 s-1, and charge recombination rate of 275.58 s-1. In addition, all data have
been compared to the N719 performance achieving efficiency of 11.04% obtained from
our experiment.
Keywords: Natural Dye, Cyanidin-3-O-Glucoside, Titanium Dioxide Nanoparticles,
Electrochemical Impedance Spectroscopy, and Dye-Sensitized Solar Cells
145
August 19-20, 2015
MAT-36
Preparation and characterization of functional material based on hybrid
polymer composites
La Agusu1), Amiruddin2), Chen Chen Taswito2), Herdianto2), and M. Zamrun F.1)
1) Department of Physics, FMIPA, Universitas Halu Oleo, Kendari
2) Department of Chemistry, FMIPA, Universitas Halu Oleo, Kendari
Abstract
The microstructures and properties of hybrid polymer composites based on polyaniline
(PANi)/Fe2O3 nanoparticles/TiO2/carbon, have been investigated for multi-functional
applications such as heavy metal removal and radar absorber material. Fe2O3
nanoparticles were extracted from iron sand by a co-precitipation method. Then ,
Fe2O3, TiO2, and carbon of coconut husk were filled in PANi by using an in situ
polymerization method. Characterization process involved XRD, SEM, FTIR, VSM,
and AC conductivity. For radar absorber application, the hybrid polymer composites
showed good electrical conductivity to absorb the incoming electromagnetic energy.
These materials will be useful for removing heavy metal in water treatment.
Keywords: Polyaniline, hybriid polymer, iron sand, nanoparticles
146
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MAT-37
Effect of Microwave on Sintered Silica Xerogel Produced from Rice Husk
Ash
I Nyoman Sudiana a*), , Seitaro Mitsudo b), Prima Endang Susilowati c), Lina Lestari a),
Muhammad Zamrun F a), Haji Aripin d)
(a) Department of Physics, Universitas Halu Oleo, Kampus Hijau Bumi Tridharma
Aduonohu Kendari 93231,Indonesia
(b) Research Center for Development of Far-Infrared Region, University of Fukui,
3-9-1 Bunkyo, Fukui-shi 910-8507, Japan
(c) Departmeny of Chemistry, Universitas Halu Oleo, Kampus Hijau Bumi Tridharma
Aduonohu Kendari 93231, Indonesia
(d) Center for Material Processing and Renewable Energy, Faculty of Learning Teacher
and Education Science, Siliwangi University, Jl. Siliwangi 24 Tasikmalaya 46115,
West Java, Indonesia.
Abstract
Silica xerogel ceramic produced from rice husk ash (RHA) taken from Kolaka, South
East Sulawesi has been successfully sintered by using a 2.45 GHz microwave heating
system. For comparison, the ceramic was also heated in a conventional method by using
an electric furnace. Densification, microstructural, and morphological characterization
of the silica were then investigated by using an Archimedes densification device, a Xray
diffraction (XRD) and a Scanning Electron Microcophy (SEM), respectively. Effect of
microwave energy on the properties of silica xerogel ceramic were evaluated and
discussed by compared to conventionally sintered results.
Keywords: Rice husk ask, silica xerogels, Microwave Effect, Microstructure, Sintering
147
August 19-20, 2015
MAT-38
Cr-Al Coatings on Low Carbon Steel Prepared by a Mechanical Alloying
Technique
April Imelda Juita Hia1), Toto Sudiro2,*), Didik Aryanto2) and Krista Sebayang1)
1 Postgraduate Program, Faculty of Mathematic and Natural Science,
University of Sumatera Utara
Sumatera Utara, 20155-Indonesia.
2 Research Center for Physics, Indonesia Insitute of Sciences
Kawasan Puspiptek Serpong, 15310-Indonesia.
Abstract
Four different compositions of Cr and Al coatings as 100Cr; 87.5Cr-12.5Al, 50Cr-50Al
and 100Al (in atomic ratio) have been prepared on the surface of low carbon steel by a
mechanical alloying technique. The composition of each powder was milled for 2h in a
stainless steel crucible with a ball to powder ratio of 10:1. Hereafter, the Cr-Al powder
and substrate were mechanical alloyed in air for 1 h. Heat treatment of coated sample
was carried out at 800oC in a vacuum furnace. In order to characterize the phase
composition and microstructure of the coating before and after heat treatment, XRD and
SEM-EDX were used. The results show that Cr, Cr-Al or Al coating were formed on the
surface of low carbon steel. After heat treatment, new phases and interdiffusion zone
were formed in the coating and coating-steel interface, depending on the coating
composition.
Keywords: Cr-Al, Mechanical alloying, Heat Treatment, Interdiffusion
148
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MAT-39
Insitu Preparation of Copper Iodide (CuI) Thin Film by Spraying
Techniques for Hole Transport Material (HTM)
Gina H. Rahmi a), Putri Pratiwi a), Bebeh W. Nuryadin b), Akfiny Hasdi Aimon a),
Toto Winata a), and Ferry Iskandar a,c*)
a) Physics of Electronic Materials Research Division
b) Department of Physics, Faculty of Science and Technology
UIN Sunan Gunung Djati, Bandung 40614 Indonesia
c) National Research Center for Nanotechnology (NRCN)
Abstract
Perovskite solar cells have attracted interest as a low-cost and high efficiency solar cell
due to its great performance with 20.1%. One type hole transport material (HTM) is
Copper Iodide (CuI). CuI is inexpensive and high mobility compare to common HTM in
perovskite solar cell. However, diisopropylsulfide which is used to dissolve CuI is
malodorous and toxic compound. Therefore, the objective of this research is to synthesis
CuI thin film with low-cost, safety and easy fabrication. CuI layer was synthesize by
spraying techniques with insitu method. Precursor solutions consist of CuSO4.5H2O
dissolved in ammonia and KI dissolved water. After that the precursor solution was
sprayed on the glass substrate. Prepared thin film was characterized by X-ray
Diffractometer (XRD), UV-Vis Spectrophotometer, Scanning Electron Microscopy
(SEM) and four-point probes. We also investigated the effect of precursor concentration
and temperature to optic and electric properties CuI thin film
Keywords: insitu CuI thin film, hole transport material (HTM), conductivity,
transmittance, spraying techniques.
149
August 19-20, 2015
MAT-40
Preliminary Study on Synthesis of Organolead Halide with Lead Derived
from Solder Wire
Putri Pratiwi a), Gina H. Rahmi a), Bebeh W. Nuryadin b), Akfiny Hasdi Aimon a),
Mikrajuddin Abdullah a), and Ferry Iskandar a,c *)
a) Physics of Electronic Materials Research Division
b) Department of Physics, Faculty of Science and Technology
UIN Sunan Gunung Djati, Bandung 40614 Indonesia
c) National Research Center for Nanotechnology (NRCN)
Abstract
In the last five years, organolead halide material has attracted great attention for
perovskite solar cells due to its high power conversion efficiency (PCE) up to 20.1% in
2014. One of common perovskite material is lead based reagent. In this research, we
synthesized organolead halide material with lead extracted from solder wire. In
preparation procedure, first, we produced PbCl2 and PbI2 by reacting lead from solder
wire with NaCl and KI. They are used as basic substance for perovskite material. Then,
in order to get perovskite solution, the powders are reacting with Methylamine Iodide
(MAI) in dimethylformamide (DMF) by using solution based method. Further, the spin
coating method was used to fabricate thin film perovskite. X-ray Diffractometer (XRD),
Fourier Transform Infrared Spectroscopy (FTIR), Energy Dispersive X-Ray
Spectrometer (EDS) and UV-Vis Spectrophotometer was used to identified their
structure and physical properties.
Keywords: Perovskite solar cells, Organolead halide, solder wire, Solution process,
Spin Coating, Thin Film.
150
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MAT-42
The Role of Chemical Additives to PCM CaCl2.6H2O to the Phase Change
Process to Optimize Its Performance as Latent Heat Energy Storage System
I.M.Sutjahja, Sri Rahayu A. U, Nia Kurniati, D. Kurnia
Physics Department, Faculty of Mathematics and Natural Sciences,
Abstract
CaCl2.6H2O is one of salt hydrate based phase change material (PCM) which is suitable
for room air-temperature stabilizer because it has the melting temperature just above the
human comfort zone temperature (Tm~ 29 oC) and a relatively large heat entalphy (DH
~ 190 kJ/kg). This paper reports the role of the type of chemical additives to PCM
CaCl2.6H2O to the phase change process throughout the solidification process or heat
release in order to optimize its performance as latent heat energy storage system. In this
research we used several kinds of chemical additive, namely BaCO3 (0.5 % wt),
K2CO3 (0.5 % wt) andSrCl2.6H2O (1.0% wt). In terms of its latent time for phase
change process the order the effectiveness of those chemical additives are reduced from
SrCl2.6H2O, BaCO3and K2CO3. We found that this is also related to their role in
suppression supercooling and phase separation effects which occurs during
crystallization process of CaCl2.6H2O.
Keywords: CaCl2.6H2O, phase change material (PCM), chemical additive (BaCO3,
K2CO3 and SrCl2.6H2O)
151
August 19-20, 2015
MAT-43
The Effectiveness of Organic PCM Based on Lauric Acid from Coconut Oil
and Inorganic PCM Based on Salt Hydrate CaCl2.6H2O as Latent Heat
Energy Storage System in Indonesia
Sri Rahayu A. U*), I.M. Sutjahja, D. Kurnia
Abstract
A latent heat energy storage system utilising phase change materials (PCM) is an
alternative strategy to reduce the use of Air Conditioning (AC) system in big cities in
Indonesia in order for energy conservation in the future. In this research we used two
kinds of materials, namely organic PCM based on lauric acid from coconut oil (CO) and
inorganic PCM based on salt hydrate , because they have thermophysical parameters
suitable for human’s thermal comfort application in the building. The CO which
contained more than 50% lauric acid has the melting temperature (Tm) of about 26 and
heat entalphy ΔH around 103 kJ/kg, while has the melting point of 29 and heat entalphy
of 190 kJ/kg. In this paper we report the effectiveness of those two kinds of PCM in
reducing the air temperature as one of some criteria for human’s thermal comfort. The
experiments were performed in a close and adiabatic room and the time-temperature
measurements were done automatically using Arduino microcontroller and LM35
temperature sensor connected to the PC.
Keywords: latent heat, energy storage system, phase change materials (PCM), coconut
oil (CO), CaCl2.6H2O.
152
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MAT-45
Effect of Pre-Strain on Mechanical Properties and Deformation Induced
Transformation of 304 Stainless Steel
Fahri R. Zulfi, Akhmad A. Korda
Department of Metallurgical Engineering, Bandung Institute of Technology
Abstract
Effect of pre-strain on mechanical properties and deformation induced phase
transformation of 304 stainless steel under tensile deformation has been studied. Prestrain with the variation percentage of deformation was applied to the tensile test
specimens. Tensile and hardness testing were carried out after pre-strain to study the
mechanical properties change. Deformation induced phase transformation was
investigated by using X-ray diffraction and optical microscope. XRD study indicates
that metastable austenite transforms to martensite due to deformation. The martensite
volume fraction increases with the increase in percentage of deformation. The increase
in strength and hardness were associated with an increase in the volume fraction of
martensite.
Keywords: Deformation induced martensite, 304 stainless steel, Pre-strain, X-ray
diffraction
153
August 19-20, 2015
MAT-46
Effect of Cr2O3 Sealing Time on Anodized Al 2024-T3
Rahmat Z. Hidayat a), Akhmad A. Korda b)
Department of Metallurgical Engineering,
Faculty of Mining and Petroleum Engineering
Institut Teknologi Bandung, Jalan Ganesha 10 Bandung 40132 Indonesia
a) rahmat.zaldi@students.itb.ac.id
b) akhmad@mining.itb.ac.id
Abstract
The effect of Cr2O3 sealing time on anodized aluminum alloy has been investigated. Al
2024-T3 were used as substrate. Anodizing was carried out using chromic acid. Cr2O3
sealing was conducted in CrO3 solution for 30, 60, 90, 120 and 150 minutes. As
comparison, other specimens were also prepared as anodized and boiled water sealing.
Thickness of the coating was observed by optical microscope. Anodized and sealing
layer was analyzed by X-ray diffraction. The hardness of as anodized, boiled water
sealing and Cr2O3 sealing were compared. The highest hardness is achieved by Cr2O3
sealed specimen and followed by boiled water sealing and as anodized specimens. The
longer the process of Cr2O3 sealing the higher layer thickness and therefore the higher
hardness of the oxide layer. The best resistance to electrolyte penetration is achieved by
the Cr2O3 sealed specimen followed by boiled water sealed and as anodized specimens.
The higher thickness of C2O3 layer, the higher the resistance against electrolyte
penetration.
Keywords: Anodizing, Al 2024-T3 Alloy, Sealing, Cr2O3
154
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MAT-47
A Density Functional Theory Study of Rare Earth Ions Impurity in Gallium
Nitride
Dinan Andiwijayakusuma[1], Mineo Saito[2], and Acep Purqon[1]
[1] Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung.
[2] Division of Mathematical and Physical Science,
Graduate School of Natural Science and Technology, Kanazawa University
Abstract
Gallium nitride (GaN) is a wide-band gap (Eg=3.4eV) semiconductor. Rare Earth (RE)
in GaN have attracted interest due to their potential applications in optoelectronic
devices. We perform the first-principles calculations based on density functional theory
to investigate electronic structure of Rare Earth ions impurity substituting for
$Ga^{3+}$ in Gallium Nitride (GaN). We carry out the calculations within the
generalized gradient approximation (GGA) in wurtzite supercell GaN using PHASE/0
code. The calculation show that RE ion have stable structures in GaN with the
equilibrium bond lengths of RE-N are found to vary and in good agreement with
experimental data. We confirm that the present supercell model well describes the
impurity state of RE ions in GaN. Its predicts the band gap narrowing that expected to
facilitate the luminescence process, which is consistent with the past theoretical studies.
Keywords: DFT, GaN, Rare Earth
155
August 19-20, 2015
MAT-48
Preliminary Study of Heat Supply during Synthesized Carbon Nanodots
Material
Fitriyanti Nakul a), Akfiny Hasdi Aimon a), Bebeh Wahid Nuryadin b),
Ferry Iskandar ac*)
a) Physics of Electronics Materials Research Divission,
b) Department of Physics, Faculty of Science and Technology,
UIN Sunan Gunung Djati Bandung
Jalan A. Haji Nasution 105, Bandung 40614, Indonesia
c) National Research Center for Nanotechnology (NRCN),
Abstract
Carbon nanodots are known to be good as phosphor materials with wide range of
emission band, low cytotoxicity and excellent biocompatibility. We have synthesized
the carbon nanodots from a precursors which consists of citric acid [C6H8O7] as carbon
source and urea [(NH2)2CO] as nitrogen source through microwave-assisted method.
The heat energy supplied during microwave process was controlled during synthesized
process. The relation between temperature and heating time was plotted in order to
obtain the information of calor energy during microwave process. Furthermore, we also
studied the effect of citric acid mass by varying its percentage in the precursors. Then,
the samples were characterized by PL spectrofluorophotometer and FTIR spectrometer.
From these studies, we found that the optimum luminescence intensity were produced
from 1% wt citric acid mass with given calor energy in the range 10500-2500 ℃.s/g
(calor unit in ℃.s/g) during microwave process. It has a single emission bands with
bright yellow luminescence.
Keywords: Carbon nanodots, Microwave Method, Calor Energy, Luminescence.
156
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MAT-49
The Influences of Calcia Silica Contents to the Compressive Strength of the
Al-7000 Aluminium Foam
Sutarno1,a), Syoni Soepriyanto1,b), Akhmad A. Korda1,c), Tatacipta Dirgantara 2,d)
1 Department of Metallurgical Engineering-Faculty of Mining and Petroleum
2 Faculty of Mechanical & Aeronautical Engineering
Bandung Institute of Technology, Jl. Ganesha 10 Bandung 40132 Indonesia
a)Corresponding author: 1hartosuwarno@gmail.com
b)syonis@mining.itb.ac.id; c)akhmad@mining.itb.ac.id;
d) tdirgantara@ftmd.itb.ac.id
Abstract
Abstract. This experiment evaluated the effect of calcia alumina and alumina silica that
formed as side products involved in metal mixture of aluminium foam. These
compounds are formed from additional calcium carbonate and silica in the mixture.
Calcium carbonate (CaCO3) roles as a blowing agent source of carbon dioxide (CO2).
The formation of calcia alumina (CaO.Al2O3) is desired to improve the viscosity and to
strengthen of cell wall of aluminium foam. However, Al-7000 aluminium foam showed
a decrease tendency of compressive strength probably due to existence of alumina silica
(3Al2O3.SiO2) in the metal mixture. In this case, the silica that thermally combines
with alumina compound may degrade the metal mixture of aluminium foam structure.
Keywords: Aluminium foam, Alumina silica, Calcia alumina, Compressive strength
157
August 19-20, 2015
MAT-51
Thin Film Preparation of Carbon Nanodots Composites as Green
Photoluminescence Material
Ferry Iskandar ab*), Akfiny Hasdi Aimon a), Agus Rahmat Akmaluddin a),
Bebeh Wahid Nuryadin c), Mikrajuddin Abdullah a)
a) Physics of Electronic Materials Research Division Department of Physics,
b) National Research Center for Nanotechnology (NRCN) Institut Teknologi Bandung,
Bandung 40132 Indonesia
c) Department of Physics, Faculty of Science and Technology UIN Sunan Gunung Djati
Bandung, Bandung 40614 Indonesia
(*) E-mail: ferry@fi.itb.ac.id
Abstract
Nowadays, the developments of phosphors materials require elements without noble
metals and simple production process. Carbon nanodots are one of phosphor materials
with wide range of emission band, and high biocompatibility. In this research thin film
carbon nanodots composite have been prepared by spin coating method. Prior
deposition, powder carbon nanodots were synthesized from a mixture of urea as the
nitrogen sources and citric acid as a carbon source by using microwave-assisted heating
method. The prepared powder was dispersed in transparent epoxy resin and then coated
on glass substrate. The photoluminescence result for powder carbon nanodots exhibited
a single, homogeneous and broad spectrum with yellow emission upon excitation at 365
nm. The Fourier Transform Infrared Spectroscopy (FTIR) result showed the existences
of C=C, C-H, C=O, N-H and O-H functional groups. Based on UV-Vis measurement,
the prepared thin film was highly transparent (transmittance 90%) with estimated film
thickness around 764 nm. It has direct band gap characteristics with a value of 2.9 eV.
This result may open an opportunity for optoelectronic devices.
Keywords: Phosphor Materials, Carbon Nanodots, Thin Films, Photoluminescence,
FTIR and UV-Vis
158
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MAT-52
THE ESTIMATION OF THE MINIMIZER OF THE THOMAS-FERMIDIRAC-VON WEIZSAECKER FUNCTIONAL OF NaCl CRYSTAL
LATTICE
S. Wahyuni 1,2,a), W.S. Brams Dwandaru 3), M.F. Rosyid 1,b)
1 Kelompok Penelitian Kosmologi, Astrofisika, Fisika Matematik, dan Fisika Partikel
(KAMP) Jurusan Fisika FMIPA Universitas Gadjah Mada Yogyakarta
2 Jurusan Fisika FMIPA Universitas Negeri Semarang
3 Jurusan Pend. Fisika FMIPA Universitas Negeri Yogyakarta
Email: a)yuniblr@yahoo.com, b)farchani@ugm.ac.id
Abstract
The estimation of the minimizer of the Thomas-Fermi-Dirac-von Weizsaecker
functional of NaCl crystal lattice is calculated by making use of a direct method we have
developed recently. The methods is referred to as direct method because in the course of
the calculation of the estimation of minimizer we should not derive the Euler-Lagrange
equation at all. By using the graph of the so called umbrella functions, the estimation of
the minimizers function is represented. The minimizer is bounded from above by the
umbrella functions.
Keywords: minimizer, direct method, umbrella function.
159
August 19-20, 2015
MAT-53
Generation of Submicron Bubbles using Venturi Tube Method
I Gede Putu Agastya Eka Wiraputra 1), Dhewa Edikresnha 2),
Muhammad Miftahul Munir 1,2), and Khairurrijal 2,3)
1 Theoretical High Energy and Instrumentation Research Division
2 Research Center for Bioscience and Biotechnology,
3 Physics of Electronics Material Research Division
Abstract
Submicron bubbles are bubbles with diameter less than 1 millimeter. In this experiment,
the bubbles were generated by mixing water and gas by cavitations method, specifically
the hydrodynamic cavitation. The water was forced to pass through a venturi tube in
which the speed of the water will increase in the narrow section, the throat, of the
venturi. When the speed of water increased, the pressure would drop at the throat of the
venturi causing the outside air to be absorbed via the gas inlet. The gas was then trapped
inside the water producing bubbles. The effects of several physical parameters onto the
characteristics of the bubbles will be discussed thoroughly in this paper. From the
experiment, it was found that larger amount of gas pressure during compression would
fasten the production of bubbles and increase the density of bubble within water.
Keywords: bubbles, cavitation, pressure, venturi.
160
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MAT-54
Analytical Model for Gate Tunneling Current in Undoped Cylindrical GateAll-Around Nanowire MOSFET
Christoforus Bimo, Fatimah Arofiati Noor, Khairurrijal
Physics of Electronic Materials Research Division,
Faculty of Mathematics and Natural Sciences, Institut Teknolgi Bandung
Abstract
An analytical model was developed for calculating gate tunneling current in undoped
cylindrical gate-all-around nanowire MOSFET. Simple expressions for the three lowest
energy levels are approximated by using quantum perturbation theory and shows a good
agreement with self-consistent simulation. For the sake of simplicity, a modified WKB
method was used for the tranmittance probability. This expression was then developed
to provide an analytical compact model for gate tunneling current suitable for circuit
simulator.
Keywords: Carrier energy quantization, gate tunneling current, cylindrical gate-allaround (CyGAA) MOSFETs
161
August 19-20, 2015
MAT-55
A Compact Quantum Correction Model for Undoped Cylindrical Gate-allaround Nanowire MOSFET
Christoforus Bimo, Fatimah Arofiati Noor, Khairurrijal
Physics of Electronic Materials Research Division,
Faculty of Mathematics and Natural Sciences, Institut Teknolgi Bandung
Abstract
A compact quantum correction model for calculating I-V characteristic in undoped
cylindrical gate-all-around MOSFET has been investigated. Threshold voltage
correction as a function of device diameter and applied gate voltage was obtained by
using quantum perturbation method. Gate capacitance correction was expressed in
simple empirical relationship by introducing inversion layer centroid. The model was
verified by our self-consistent Poisson Schrodinger simulation and can be used as
compact model for circuit simulator.
Keywords: Compact I-V model, quantum correction, Cylindrical Gate-All-Around
(CyGAA) MOSFET
162
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MAT-56
Master Equation Approach on Modeling and Simulation of Single Electron
Transistor
Frans Willy, Yudi Darma*
Physics of Material Electronics Research Division,
Dept. of Physics, Institut Teknologi Bandung,
Ganesa 10 Bandung 40132, Indonesia
*yudi@fi.itb.ac.id
Abstract
Single Electron Transistor (SET) is a potential electronic device based on tunneling and
coulomb blockade effect. Single Electron Transistors can detect and control electron
movement individually in low power and high operation speed. In this paper, we discuss
modeling and simulation of single dot SET using master equation approximation.
Master equation method has been used in modeling electrical characteristic where
electron tunneling and its transition are treated probabilistically. The probability of
electron tunneling is used to determine the current density in accordance with selected
input parameters. The calculation results show the fairly accurate electrical
characteristics of SET comparing with experimental data. Staircase pattern of I-V
characteristic are clearly obtained as the main role of coulomb blockade effect in the
SET system. We also extend our calculation by introduce additional parameters such as;
the effect of working temperature, gate voltage dependent, and the influence of
resistance to the device characteristic. We found that the increasing of operational
temperature will promote higher current density and reduce the magnitude of dI/dV,
both in forward and reverse bias region. In our case by using single dot with dimension
30 nm X 80 nm X 125 nm, coulomb blockade effect could be reduced when we apply
gate voltage higher than 3V and set the resistance of drain higher than source. Our
studies show an alternative approach in modeling and simulation of electronic devices
and could be potential for the development of novel nanoelectronic devices.
Keywords: coulomb blockade, master equation, Single Electron Transistor (SET),
tunneling effect, quantum dot
163
August 19-20, 2015
MAT-57
Visible Surface Plasmon on Pt Thin Film as Detected by Spectroscopy
Ellipsometry
Christoforus Dimas Satrya a*) and Yudi Darma a**)
a) Quantum Semiconductor and Devices Lab. Physics of Material Electronic Research
Division
Dept. of Physics, Institut Teknologi Bandung,
Ganesa 10 Bandung 40132, Indonesia
*ch.dimas.satrya@students.itb.ac.id
**yudi@fi.itb.ac.id
Abstract
We study optical properties of Pt thin film (~2-5nm-thick) on ultrathin SiO2 by using
high resolution spectroscopy ellipsometry covering energy range of 0.6 to 6.5 eV.
Multilayer modelling is performed by taking into account reflections at each interface
through Fresnel coefficients to extract the dielectric function of Pt thin film. A
significant Drude response are observable at ε2 while negative ε1 are clearly obtained at
energy range of ~3.3-4.7 eV. To verify the contribution of the surface states, we further
analyze the complex dielectric function to the energy loss function and found that a
strong peak at around 4.8 eV. We suggest that the unique surface states that arise from
collective oscillations of electrons are responsible for the surface plasmons modes in Pt
thin film as confirm by ε1 and loss function spectra. Note that, plasmon energy of Pt
thin film is lower than bulk Pt which is around 5.8 eV. These results allow us to observe
and control the visible surface plasmon on Pt thin film by select the appropriate film
thickness. This study opens the opportunity of tunable surface plasmon on different
structure and film thickness for future device application.
Keywords: Platinum, Plasmon, Energy Loss Function, Spectroscopy Ellipsometry
164
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MAT-58
Thermophysical Parameters of Coconut Oil and Its Potential Application as
the Thermal Energy Storage System in Indonesia
Widya A. Putri, I. M. Sutjahja, D. Kurnia, S. Wonorahardjo
Magnetic and Photonic Research Group, FMIPA, ITB
Jl. Ganesha No. 10, Bandung, 40132
Abstract
The high consumption of electric energy for room air conditioning (AC) system in
Indonesia has driven the research of potential thermal energy storage system as a
passive temperature controller. The application of coconut oil (CO) as the potential
candidate for this purpose has been motivated since its working temperature just around
the human thermal comfort zone in the tropical area as Indonesia. In this research we
report the time dependent temperature data of CO, which is adopting the T-history
method. The analysis of the data revealed a set of thermophysical parameter values;
consist of the supercooling and crystallization temperatures, the mean specific heats of
the solid and liquid, as well as the latent heat of fusion for the phase change transition.
The results revealed the potential use of CO as the phase change material (PCM) in the
thermal energy storage system.
Keywords: phase change material (PCM), coconut oil, thermal energy storage system,
T-history method, the mean specific heat, latent heat of fusion.
165
August 19-20, 2015
MAT-59
Synthesis of Nanorods Titanium Dioxide via Anodisc Alumina Membrane
Template and their Applications in Dye-Sensitized Solar Cells
Risa Suryana, Sehati, Kusumandari
Sebelas Maret University
Jl. Ir. Sutami 36A Kentingan Surakarta Indonesia
Abstract
Titanium dioxide (TiO2) nanorods have been successfully sensitized through sol-gel
method via Anodisc Alumina Membrane (AAM) as template. AAM template was
removed using 6 M NaOH solution to obtain TiO2 nanorods only. Then TiO2 nanorods
were annealed at 400°C for 2 h. Phase TiO2 nanorods were characterized using X-Ray
Diffraction (XRD) and morphology TiO2 nanorods were observed using Atomic Force
Microscopy (AFM). In addition, the I-V meter was used to determine the DSSC
efficiency. The XRD patterns showed that all peaks of sensitized-TiO2 indicated anatase
phase. AFM images confirmed that TiO2 nanorods have diameters in range 18 – 30 nm.
TiO2 nanorods were mixed with TiO2 nanoparticles having 21 nm in size then it was
applied in the DSSC with β-carotene from carrot as dye. The efficiency of DSSC using
TiO2 mixed-nanorods and nanoparticles increase about 60% compare to using TiO2
nanoparticles only. It is considered that TiO2 nanorod structures can be effective in
photon trapping thus many photon interact to dyes to produce many excited-electrons.
Keywords: sol-gel method, AAM template, TiO2 nanorods, TiO2 nanoparticles, XRD,
AFM, β-carotene, DSSC
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MAT-60
Molecular doping effect on the electronic properties of two-dimensional
materials
Arramel, Zheng Yujie, Wang Qixing, Andrew Thye Shen Wee
Surface Science Laboratory, Department of Physics, National University of Singapore,
Lower Kent Ridge, 2 science drive 3, 117542, Singapore
Abstract
In recent advancements of an atomically-thick, flat, and flexible two-dimensional (2D)
material has attracted tremendous interest. Graphene and 2D layered semiconductors
such as transition-metal dichalcogenides (TMDs) pave the way on the exploration of
their unique layer-number dependent electronic and optical properties.[1-3] The latter
have a promising future on the microelectronics due to their sizeable bandgaps, i.e., the
crossover from indirect-direct bandgap transition occurs as the thickness of TMDs is
decreased to a monolayer. In this work, we investigated the adsorption of porphyrins
and perylenes molecules to implicate bandgap engineering of graphene, MoS2, and
WSe2 respectively. In the case of graphene, our result unambiguously exemplified that
the bandgap size could be opened depending on the type of the deposited porphyrins.
Interestingly, the bandgap opening can be considered as a reversible process.[4] The
second example, we highlighted our attempt on the two distinguished type of carbonbased perylene semiconductors to manipulate the energy level of TMDs. Our studies
suggest that molecular doping is an attractive approach toward wide-ranging potential of
TMDs in optoelectronics, nanoelectronics and energy-harvesting applications.
Keywords: Molecular doping effect on the electronic properties of two-dimensional
materials
167
August 19-20, 2015
NUC-01
Probabilistic Assessment of External Dose in Muria Peninsula using TMI-2
Source Term
Sunarko, Zaki Suud, Idam Arif
Abstract
Probabilistic dose assessment for accident condition is done for Muria Peninsula region
using source-term from Three-Mile Island unit 2 (TMI-2) PWR type reactor accident.
The isotopes used in the calculation are Xe-133, Kr-88, I-131 and Cs-137. The effluent
is assumed to be released from a 50 m stack. Lagrangian particle dispersion method
(LPDM) employing empirical dispersion coefficient in 3-dimensional mass-consistent
wind-field is employed to obtain surface-level concentration which is then timeintegrated to obtain spatial distribution of ground-level total dose. Meteorological data is
obtained from an hourly-based records during the Site Feasibility Study period in Ujung
Lemahabang, Muria Peninsula. Effluent is released in uniform rate during a 6-hour
period and radioactive plume is tracked for the subsequent 6 hours after the hour of
release.
Keywords: Dose assessment, LPDM, mass-consistent wind-field, Muria peninsula
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NUC-02
Lagrangian Particle Method for Local Scale Dispersion Modeling
Sunarko, Zaki Suud
Physics Department, ITB
Abstract
A deterministic model is developed for radioactive dispersion analysis based on
random-walk Lagrangian Particle Dispersion Method (LPDM). A diagnostic 3dimensional mass-consistent wind-field with a capability to handle complex topography
can be used to provide input for particle advection. Turbulent diffusion process of
particles is determined based on empirical lateral and linear vertical relationships.
Surface-level concentration is calculated for constant unit release from point sources of
50 and 100 meter high. A series of 60-second segmented groups of particles are released
within 3600 seconds duration. Averaged surface-level concentration within a 5 meter
surface layer is obtained and compared with available analytical solution. Results from
LPDM shows good agreement with the analytical result for vertically constant and
varying wind field with the same atmospheric stability.
Keywords: LPDM, mass-consistent wind-field, dose assessment.
169
August 19-20, 2015
NUC-04
Investigation of Nuclear Ground State Properties of Fuel Materials of Th232 and U-238 Using Skyrme-Extended-Thomas-Fermi Approach Method
Yacobus Yulianto, Zaki Suud
Abstract
We have performed the nuclear ground state properties investigation of Th-232 and U238 using Skyrme interaction. The local density, the kinetic energy density, and the
spin-orbit density for proton and neutron have been calculated using Extended-ThomasFermi approach method. The calculation results then have been compared with SkyrmeHartree-Fock results (the HAFOMN and the HFBRAD codes). Our total energy
calculations are -1792.973947 MeV (for Th-232) deviated 0.29244% from experiment
energy and -1761.519459 MeV (for U-238) deviated 0.48369% from experiment
energy. The distribution profiles of local density and local potential for Th-232 and U238 are quite similar with Skyrme-Hartree-Fock results. It indicates that SkyrmeExtended-Thomas-Fermi method can be used to study the nuclear ground state
properties, especially even-stable nuclei.
Keywords: Skyrme interaction, Extended-Thomas-Fermi, Th-232, U-238, SLy4
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NUC-05
Conceptual Core Analysis of Long Life PWR Utilizing Thorium-Uranium
Fuel Cycle
Rouf a) and Zaki Su’ud b)
Nuclear and Biophysics Research Group, Department of Physics,
Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia
a) Corresponding author: rouf@students.itb.ac.id
b) szaki@fi.itb.ac.id
Abstract
Conceptual core analysis of long life PWR utilizing thorium-uranium based fuel has
conducted. The purpose of this study is to evaluate neutronic behavior of reactor core
using combined thorium and uranium fuel. Based on this fuel composition, reactor core
have significantly higher conversion ratio rather than conventional fuel which could
give longer operation length. This simulation performed using SRAC Code System
based on library SRACLIB-JDL32. The calculation carried out for (Th-U)O2 and (ThU)C fuel with uranium composition 20 - 35 % and gadolinium (Gd2O3) as burnable
poison 0,026 – 0,075%. The fuel composition adjusted to obtain burnup length 10 – 15
years under thermal power 600 – 1200 MWt. The key properties such as uranium
enrichment, fuel volume fraction, percentage of uranium are evaluated. Core calculation
on this study adopted R-X geometry divided by 3 region, each region have different
uranium enrichment. The result show multiplication factor every burnup step for 15
years operation length, power distribution behavior, power peaking factor, conversion
ratio, and spent fuel inventory. The optimum core design achieved when thermal power
600 MWt, percentage of uranium 35%, U-235 enrichment 11 – 13 %, with 14 years
operation length, radial and axial power peaking factor about 1,5 and 1,2 respectively.
Keywords: Long life PWR, neutronic analysis, thorium, uranium, SRAC.
171
August 19-20, 2015
NUC-06
Breeding Blanket Design Optimization in HCLL Blanket using MCNP
Program
Indah Rosidah and Zaki Suud
Nuclear and Biophysics Research Group, Department of Physics,
Abstract
Fusion reactor using tritium-deuterium reaction is going to be a prolific source of 14.1
MeV (80% of the fusion energy) neutrons, which they will be escaped from plasma. The
reactor features a major radius of 8.1 m and minor radius of 2.5 m. Thus, one of the
parts of fusion reactor which is the important design is Tritium Blanket Module (TBM).
One of the two European blanket concepts is the Helium Cooled Lithium Lead (HCLL).
The HCLL blanket uses Pb-Li as a neutron multiplier, Li as a breeder, and high pressure
(8 MPa) He as a coolant. The purpose of this study is achieving the value of TBR more
than one which will assure the tritium self-sufficiency in steady state operation. MCNP
program with Monte Carlo was the tools for calculating this. Optimization of TBR value
with using the various of Li enrichment and blanket thickness is resulting 1.1.
Keywords: Blanket, HCLL, MCNP, TBR
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NUC-07
Fuel Fraction Analysis of 350 MWth Gas Cooled Fast Reactor with Nitride
(UN-PuN) Fuel and Modified CANDLE Burn-Up Scheme
Ratna Dewi Syarifah a*), Zaki Suud a**), Khairul Basar a), H. Sekimoto b)
(a) Nuclear Physics and Biophysics Research Division, Physics Department,
Faculty of Mathematics and Natural Science, Bandung Institute of Technology,
* syarifah.physics@gmail.com
**szaki@fi.itb.ac.id
(b) Emeritus Professor of Research Lab. For Nuclear Reactors,
Tokyo Inst. of Technology, Tokyo, Japan
Abstract
Nuclear Power Plant (NPP) is one of candidates which can support electricity demand in
the world. The Generation IV NPP has fourth main objective, i.e. sustainability,
economics competitiveness, safety and reliability, and proliferation and physical
protection. One of Gen-IV reactor type is Gas Cooled Fast Reactor (GFR). It use helium
coolant and fast neutron spectrum. In this study, the analysis of fuel fraction in small
GFR with nitride fuel and modified CANDLE burn-up scheme has been done. The
calculation was performed by SRAC code, both Pij and CITATION calculation. SRAC
(Standard thermal Reactor Analysis Code) system is a code system applicable to analyze
the neutronics of variety reactor type. It system is designed and developed by JAERI.
And for the data library used JENDL-4.0. The modified CANDLE scheme is used to
calculate the burn-up of the reactor. Active terrace is divided into ten regions with the
same volume in axial direction and two regions in the radial direction. Fresh fuel (UN
fuel) initially put in region-1. While other regions are filled with UN-PuN fuel which
have different percentage of plutonium. After 10 years (one step burn-up), conducted a
shift region-1 to region-2, region-2 to region-3 and so on. Fuel in the 10 region
discarded and the region-1 will be filled by fresh fuel. So, in one cycle, the reactor can
be operated 100 years. The variation of fuel fraction is 50% up to 65%. From the
analysis of fuel fraction, the high burn up reached when the fuel fraction is low. In this
study 50% fuel fraction produce faster fissile fuel, so it has highest burn-up level than
the other fuel fraction. The material amount which we need to produce 350MWth of
small GFR less than the higher fuel fraction.
Keywords: GFR; Gen-IV NPP; burn-up; modified CANDLE; fuel fraction; nitride fuel
(UN-PuN) fuel
173
August 19-20, 2015
NUC-08
Study Of 16O+92Zr,Sm144 Fusion Reactions With Coupled-Channel
Method
Muhammad Zamrun Firihu a*), Viska Inda Variani a), Hasan Abu Kassim b)
(a)Department of Physics, Halu Oleo University, Kendari, 93232,
Sulawesi Tenggara, Indonesia
*mzamrun@gmail.com
(b)Department of Physics, University of Malaya, 50603, Kuala Lumpur, Malaysia
Abstract
The heavy-ion fusion reaction of 16O with 92Zr and 144,148Sm at sub-barrier energies
is studied with coupled-channels method. The nuclear potential using in the coupledchannles calculations is derived from Skyrme-Extended-Thomas-Fermi Model. We
investigate the performance of this potential compared to the phenomenological WoodsSaxon potential in explaning the experimental data of fusion cross section and barrier
distribution for these reactions. We show that the present coupled-channels calculations
with Skyrme-Extended-Thomas-Fermi potential well account for the experimental data
of the reactions without any adjusting parameters. On the other hand, the calculation
with Woods-Saxon potential, the parameter of the potential has to be adjusted in order to
expainn the experimental data. This finding indicates that Skyrme-Extended-ThomasFermi potential can be used as an altenative potential for analyses the heavy-ion fusion
reactions.
Keywords: Coupled-channels method, heavy-ion fusion reaction, fusion cross section,
fusion barrier distribution
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NUC-09
Thermohydraulic Analysis of Natural Circulation based Pb-Bi Cooled
Advanced Generation Nuclear Power Plant
Novitrian; Zaki Su’ud; Abdul Waris; Sparisoma Viridi
Nuclear Physics and Biophysics Research Division,
Department of Physics, Institut Teknologi Bandung
Abstract
Pb-Bi cooled long life NPPs which can be operated 10-20 years without refueling are
strong candidate for modular Generation IV NPPs. SPINNOR (Small Pb-Bi cooled
Non-refueling Nuclear Power Reactors) have been developed in ITB and satisfied
inherent safety capability, able to burn nuclear waste effectively, and efficient in using
natural uranium resources. In this study natural circulation based SPINNORs NPP has
been developed and analyzed. Such NPP need no pump so that it has higher safety and
can avoid severe accident such as in the case of TMI II and Fukushima Daiichi
accidents. Optimizations have been performed by considering several parameters such
as pin diameter, pin pitch, chimney height, etc. From the detail analysis which have
been performed during this study some important conclusion can be derived as follows:
(1). Natural circulation occurs in the current SPINNOR-NC (SPINNOR with natural
circulation) for total coolant flow rate of 3696 kg/s with 10 m of chimney, while 50m of
chimney increases the total flow rate to 6231 kg/s. (2). Maximum coolant temperatures
depend on the chimney height. The higher the chimney the lower the temperature. (3).
Gravitation driven pressure drop is more dominant along with the increase of chimney
height, while acceleration based pressure drop has small effect compared to other
pressure drop components
Keywords: Safety Analysis; Thermohydraulics; Natural Circulation; Liquid Metal
Cooled Reactor; Fukushima Accident; SPINNOR
175
August 19-20, 2015
NUC-10
Two-Dimension Granular Fission Toy Model and Evolution of Granular
Compaction
Sparisoma Viridi*, Rizal Kurniadi, Abdul Waris
Jalan Ganesha 10, Bandung 40132
Indonesia
*dudung@gmail.com
Abstract
Simulation of cluster of two-dimension spherical particles is conducted. As initial
configuration two-dimesion hexagonal close-packed is used. Two artificial central
forces (with and constants) are introduced to the system in aiming fission phenomena of
the initial cluster Normal force based on linear spring-dashpot ( and constants) is used to
prevent particles overlap due to gravitation force between particles. Two central force
schenario are conducted. In the first all particles are under influence of both central
force, while in the second only nearer particle will be attracted by appropriate central
force. It is observed that the former scenario fails, while the later exhibits a weak
fussion-like phenomenon. Evolusion of compaction of particle cluster is also reported.
Keywords: Granular particle, granular compaction, fission toy model, two-dimension
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NUC-11
Melting penetration simulation of Fe-U system at high temperature using
MPS_LER
Asril Pramutadi Andi Mustari a), Akifumi Yamaji b), Dwi Irwanto a)
a. Physics Department, Bandung Institute of Technology,
Jl. Ganesha 10, Bandung, Indonesia
b. Department of Advanced Science and Engineering /Cooperative Major in Nuclear
Energy, Waseda University, 3-4-1, Ohkubo, Shinjuku-ku, Tokyo 169-8555
Abstract
Melting penetration information of Fe-U system is necessary for simulating the molten
core behavior during severe accident in nuclear power plants. For Fe-U system, the
information is mainly obtained from experiment, i.e. TREAT experiment. However,
there is no reported data on SS304 at temperature above 1350°C which might be due to
complexities on conducting the experiment. The MPS_LER has been developed and
validated to simulate melting penetration on Fe-U system. The MPS_LER modelled the
eutectic phenomenon by solving the diffusion process and by applying the binary phase
diagram criteria. This study simulates the melting penetration of the system at higher
temperature using MPS_LER. Simulations were conducted on SS304 at 1400, 1450 and
1500 °C. The simulation results show rapid increase on melting rate.
Keywords: MPS method, MPS_LER, melting penetration, Fe-U system, eutectic
177
August 19-20, 2015
NUC-12
LiF4-ThF4-PuF4 Utilization as Fuel Salt of miniFUJI Molten Salt Reactor
Abdul Waris*, Indarta Kuncoro Aji, Syeilendra Pramuditya, and Dwi Irwanto
Nuclear Physics & Biophysics Research Division,
Institut Teknologi Bandung,
Jl. Ganesa 10 Bandung 40132 Indonesia
*E-mail: awaris@fi.itb.ac.id, Phone: +62-22-2500834, Fax: +82-22-2506452
Abstract
Molten salt reactor (MSR) is one of the Generation IV nuclear energy systems.
Recently, a thorium molten salt nuclear energy synergetic (THORIMS-NES) concept
has being proposed for the sustainable and safe nuclear industry. The THORIMS-NES
concept consists of three stages. The building of the miniFUJI reactor, a small 10 MWe
power reactor that may be developed during 7 years is the initial stage. The second stage
is the construction of the 100-300 MWe FUJI reactors, a thorium molten salt reactor
planned to go online in 12-14 years. The setting up of regional breeding and chemical
processing centers with production of 233U by thorium spallation in AMSB (accelerator
molten salt breeder) is the final stage. The original miniFUJI reactor design uses LiFBeF2-ThF4-UF4 as a fuel salt. In the present study, the use of LiF4-ThF4-PuF4 a fuel
salt instead of LiF-BeF2-ThF4-UF4 will be discussed. Several preliminary results will
be presented in the full paper and also during the conference.
Keywords: MSR, miniFUJI, fuel salt, thorium, plutonium
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NUC-13
Plutonium Utilization in FUJI-U1 Molten Salt Reactor
Cici Wulandari, Indarta Kuncoro Aji, Syeilendra Pramuditya, Sidik Permana, and
Abdul Waris*
Nuclear Physics & Biophysics Research Division, Department of Physics,
Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung,
Abstract
Molten salt reactor (MSR) design has been elected as one of the Generation IV nuclear
energy systems, since it has many advantages such as safety improvement, proliferation
resistance, resource sustainability, and ability to be used for hydrogen production. MSR
has no chance for high power surges due to online refueling and small excess reactivity,
which in turn enhances the safety aspect of MSR. Natural Thorium (232Th) can undergo
the radiative capture reaction to generate the artificial fissile nuclide 233U after
successive beta decays. Thorium - 233U fuel cycle will produce 232U, a 2.6 MeV
gamma emmiter. These later two aspects provide the resource sustainability and the
proliferation resistance advantages of MSR. FUJI-U1 is an MSR with 450 MWth of
power output and 44.4% of thermal efficiency. The basic design of FUJI-U1 reactor
utilizes ThF4-UF4 as a fuel composition. In this study, ThF4-PuF4 will be used instead
of ThF4-UF4. SRAC 2006 code with JENDL 3.3 will be employed in the neutronics
calculation.
Keywords: MSR, FUJI-U1, plutonium, SRAC, JENDL
179
August 19-20, 2015
NUC-14
MOX Fuel Utilization in NuScale Small Modular Pressurized Water
Reactor
Chyntia Nurapriliyani, Abdul Waris*, Asril P, Nur Asiah, and Zaki Su’ud
Abstract
There are many nuclear power plant (nuclear reactor) types that suitable for Indonesia.
They are advanced pressurized water reactor (APWR), high temperature gas cooled
reactor (HTGR), and molten salt reactor (MSR). APWR is generation III/III+ reactor,
and HTGR and MSR are Generation IV type of reactors. HTGR and MSR can be used
for co-generation (electricity, desalination, and hydrogen production) since they operate
at very high temperature. Indonesia is an archipelago with more than 17,000 islands.
Therefore, small modular nuclear power plants are suitable, especially for islands beside
Java and Sumatra. NuScale has designed a small modular nuclear (SMR) with uranium
oxide fuel. In this study, the mixed oxide (MOX) will be used as fuel of NuScale SMR.
SRAC 2006 code with JENDL 3.3 will be employed in the neutronics calculation.
Keywords: NuScale, SMR, MOX, SRAC, JENDL
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NUC-15
Analytical Study of Sr-90-Fueled Betavoltaic Battery Based on p-n Junction
Silicon
Swastya Rahastamaa), Khairul Basar, Widayani, Novitrian, and Abdul Warisb)
a)swastya.r@gmail.com
b)awaris@fi.itb.ac.id
Abstract
Previously, an analytical calculation of Ni-63 betavoltaic battery has been done by
Guoping Zuo et al. (2013). We performed the same method to calculate the performance
of Sr-90 betavoltaic battery as the basic approach. Furthermore, we calculated maximum
power output, and radiation-electricity conversion efficiency using semiconductor
analysis method. Since it has a higher power density, Sr-90 fueled battery yields more
power than Ni-63 fueled battery but less radiation-electricity conversion efficiency. In
this paper, the performance between the previously calculated Ni-63 betavoltaic battery
and our calculated Sr-90 betavoltaic battery were compared so that we used the same
design as reference. However, beta particles emitted from Sr-90 source travel longer
distance inside the silicon corresponding to stopping range of beta particle inside
silicon, thus the Sr-90 fueled battery could be designed thicker than Ni-63 fueled battery
to achieve higher conversion efficiency.
Keywords: betavoltaic, energy deposition rate, stopping range, maximum power output,
181
August 19-20, 2015
NUC-16
Actinide Production of Spent Nuclear Fuel Light Water Reactor (LWR) For
Different Level of Burnup and Cooling Time Process
Sidik Permana1,a, Abdul Waris1, Ismail2 , Mitsutoshi Suzuki3 and Masaki Saito4
1 Nuclear Physics and Biophysics Research Group,
2 Center for Technical Assesment of Nuclear Instalation and Materials,
Nuclear Energy Requlatory,
Jl. Gajah Mada No. 8, PO.BOX 4005 Jakarta 10040 Indonesia
3 Nuclear Nonproliferation Science and Technology Center (NPSTC),
Japan Atomic Energy Agency (JAEA),
2-4 Shirane Shirakata, Tokai-mura, Ibaraki, 319-1195, Japan
4 Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
2-12-1 O-Okayama, Meguro-ku, Tokyo 152-8550, Japan.
a Email : psidik@fi.itb.ac.id
Abstract
Actinide production from spent nuclear fuel has being intensively monitored and
controlled by the IAEA, to ensure all nuclear materials, nuclear fuel facilities including
fuel reprocessing facilities are used only for civil and peaceful purposes. Those actinides
are by product material from nuclear reaction in the reactor core. Some researchers are
defining those actinide as nuclear waste and others define as recycled nuclear fuel.
Practical and commercial application nowdays has already use used uranium and
plutonium as new fuel after recycling and reprocessing procesess. Neptunium,
americium and curium as minor actinde are possible to be used and recycled as new fuel
in some nuclear reactor. Spent nuclear fuel (SNF) from nuclear facilities such as from
commercial reactors becomes one of the important issues in term of reducing
environmental impact and fuel sustainability as well as nuclear nonproliferation point of
view when those SNF materials can be recycled and utilized as “new” fuel loaded into
the reactors. Several discharged fuel burnup and decay time effects are used to evaluate
those effect to actinide production as well as isotopic element compositions based on
spent fuel of light water reactor (LWR) type have been evaluated in this present study.
Those fuel burnup value are varied from 33 GWd/t up to 60 GWd/t. Actinide
compositions after discharged from the reactors for several decay times from 1 years to
30 years cooling time are also evaluated. To optimize and analyze the burnup and decay
time effects to the reactor behavior as well as fuel composition including actinide
composition, An ORIGEN computation code for typical LWR type is adopted. The
results show that actinide composition of each element and isotopic element ahve their
own trend during reactor operation as burnup parameter and during cooling time process
after the reactor are stop. Actinide element production is increasing with increasing
burnup level except for uranium production which is decreasing as well as heavy metal
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in total production is also decreasing. Decreasing uranium production is estimated from
reduction number of U-235 for fission reaction and it converts to fission product and
capturing neutron by U-238 will convert to neptunium, plutonium up to curium. In case
of longer cooling time, each actinide element is increasing except for plutonium and
curium which show decreasing with longer cooling time. Cooling time process is based
on half-lives of material which can be estimated that decreasing plutonium and curium
during 30 years caused by some isotopes of those elements have shorter half-lives.
Keywords: burnup, cooling time, fuel sustainability, heavy nuclide, LWR, spent
nuclear fuel.
183
August 19-20, 2015
NUC-17
Analysis on Plutonium Production In Fast Breeder Reactor (FBR) Cycle
Based on Transuranium Fuel Loading
Sidik Permana1,a, Zaki Suud1, Ismail2 , Mitsutoshi Suzuki3 and Masaki Saito4
1 Nuclear Physics and Biophysics Research Group,
2 Center for Technical Assesment of Nuclear Instalation and Materials,
Nuclear Energy Requlatory,
Jl. Gajah Mada No. 8, PO.BOX 4005 Jakarta 10040 Indonesia
3 Nuclear Nonproliferation Science and Technology Center (NPSTC),
2-4 Shirane Shirakata, Tokai-mura, Ibaraki, 319-1195, Japan
a Email : psidik@fi.itb.ac.id
Abstract
Nuclear fissile material production is one of the important issues in conjunction with
nuclear fuel sustainability which is directly related to the reactor operations. Nuclear
reactor which can provide some fissile materials by them self can be defined as breeder
reactor which can be produced from converted fertile materials during and after reactor
operations. Plutonium production becomes one of the important aspect in relation with
recycling material of transuranic materials. Plutonium recycling program as good
candidate for fuel optimization program, gives an issue of nuclear proliferation
resistance due to its potential to be used as fuel for explosive devices. How to maintain
higher capability of fuel breeding in the reactors should be followed by reducing the risk
of nuclear proliferation such as plutonium material. As one of the important aspects
from intrinsic nuclear proliferation resistance view point, level of material barrier as one
of the control material which is related to higher technical difficulties (barrier) based on
more complex design of nuclear explosive and fuel handling. In this present study,
plutonium production based on transuranium fuel loading in fast breeder reactor (FBR)
has been evaluated. Transuranium fuel composition is used based on the composition of
spent nuclear fuel (SNF) of light water reactor (LWR). Its spent fuel has been simulated
by an ORIGEN computation code. Fuel composition analysis, reactor criticality
performance and fuel breeding capability optimization of FBR are performed by
adopting JOINT-FR and CITATION computation code. A basic parameters of reactor
operation analysis is refered to the large FBR type of Japan Sodium Fast Reactor (JSFR)
design. Transuranium loading which contains mixed plutonium and minor actinide
(MA) materials gives some significant plutonium productions during reactor operation
as well as other actinide productions. Converted transuranium fuel such as minor
actinide from capturing neutrons in the reactor gives an increasing composition of
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plutonium. Compositions of isotopic plutonium of Pu-238 to Pu-242 are evaluated to
estimate their contribution to the total plutonium production. In addition, those isotopic
plutonium production can be used as one of the plutonium proliferation resistance factor
as isotopic material barrier of plutonium. Conversion process of minor actinide such as
neptunium gives some contributions to increase even mass composition of plutonium
isotopes which shows higher isotopes production of Pu-238 and Pu-240 as main
production.
Keywords: plutonium production, transuranium loading, fast breeder reactor (FBR),
plutonium isotope, proliferation resistance
185
August 19-20, 2015
NUC-18
Reactivity and actinide production analysis for different burn-up step and
cycle process of large FBR
Sidik Permana1, Geby Saputra1, Mitsutoshi Suzuki2, and Masaki Saito3
1 Nuclear Physics and Bio Physics Research Group, Bandung Institute of Technology,
Gedung Fisika, Jl. Ganesha 10, Bandung 40132, Indonesia.
2 Department of Science and Technology for Nuclear Material Management (STNM),
2-4 Shirane, Shirakata, Tokai Mura, Naka-gun, Ibaraki 319-1195 Japan.
Abstract
Reactivity performance of the reactor is one of the important aspects especially for the
initial stage of operation to be evaluated in term of the reactor operation as well as
criticality safety concenr. Actinide productions of the reactor have been evaluated
during reactor operation as well as proliferation aspect of fuel production. In the present
study, the evaluation of reactor performance which is based on the fast breeder reactor
(FBR) is analyzed for different fuel burnup step process to analyze its effect to the
reactor criticality and actinide production of nuclear fuel during reactor operation.
Burnup time step is performed based on different reactor operation day steps as well as
different cycle operation process. For optimization analysis of reactor design, a large
reactor type of fast breeder reactor as a reference case and an established reactor design
code JOINT-FR were adopted. Obtained results show that shorter burn up time step
(day) gives higher criticality condition which means less criticality for longer burnup
time step. Excess reactivity are shown also in this evaluation as well as some various
actinide productions during reactor operation. It is estiamted that burnup time step
variation will affect to nuclear material production in the reactor core which show some
actinides contribute to achieve more criticality condition when shorter burn up time step
is used caused by the individual nuclide half-live factor. Cycle operation process will
show the transitional stage of the reactor operation and the equilibrium condition which
shows the equilibrium actinide production in the reactor.
Keywords: criticality, actinide production, burn-up, FBR
186
Book of Abstract |
THE-01
An Alternative to Bogomolnyi Method
Handhika Satrio Ramadhan
Departemen Fisika, FMIPA
Abstract
We develop an alternative formalism for obtaining Bogomolnyi equations directly from
the corresponding Euler-Lagrange equations without having to appeal to the
Hamiltonian. This method, dubbed the on-shell method, is suitable for deriving the BPS
equations and constraining the allowed potentials of noncanonical topological solitons.
We discuss its applications on ordinary and Born-Infeld domain walls and vortices.
Keywords: Bogomolnyi, Born-Infeld, topological solitons
Topic: Theoretical High Energy Physics
187
August 19-20, 2015
THE-02
Investigation of Kaon Photoproduction in Six Isospin Channels Near
Threshold
T. Mart
Departemen Fisika, FMIPA, Universitas Indonesia, Depok 16424, Indonesia
Abstract
We have investigated kaon photoproduction on the nucleon γ+N→K+Y, where N=p,n,
K=K+,K0, and Y=Λ, Σ+, Σ0, Σ−, by means of an effective Lagrangian approach near the
production threshold. The background amplitude consists of the suitable Feynman
diagrams, while the resonance amplitudes are obtained by using the Breit–Wigner form
of multipoles. To extract the unknown parameters in the model we have fitted all
available data with energies up to 50 MeV above the thresholds. The agreement of
model calculation with experimental data is excellent. Other related and interesting
phenomenological aspects have been also studied by using the model. The investigation
has been also extended to the electroproduction process, i.e., e+p→e′+K+Y.
Keywords: Kaon Photoproduction, Strangeness, Meson, Baryon
188
Book of Abstract |
THE-03
Light from Dark Sector at the LHC
Reinard Primulando
Parahyangan Catholic University
Abstract
There is mounting evidence for the existence of dark sector. Yet, little is known about
the sector itself. The currently running LHC has the ability for probing the dark sector.
In fact, some the mono-X analyses are already done at the Run-I by assuming a minimal
dark sector. However, given its wide range of energy reach, the LHC might also probe a
non-minimal dark sector. An example of such a case is a dark sector charged under a
U(1) gauge group. The gauge boson of the U(1) can mix with the SM hyper-charge and
behaves like a "dark photon." In this talk, I propose a novel signature to probe this kind
of dark sector. If the non-minimal dark sector is realized in nature, this signature might
even appear before the mono-X.
Keywords: LHC, dark matter
189
August 19-20, 2015
THE-04
Global Spacetime Topology outside Global k-monopole
Ilham Prasetyo and Handhika S. Ramadhan
Departemen Fisika, FMIPA, Universitas Indonesia, Depok 16424, Indonesia.
Abstract
We obtain exact gravitational field solutions far from the core of nonlinear global kmonopole. Specifically we consider two explicit examples,
and
, with a cosmological constant . Using different
ansatz for metric, we obtain metric spacetime for conical topology or compactification.
Keywords: nonlinear global k-monopole
190
Book of Abstract |
THE-05
Asymptotically AdS Solutions of Five Dimensional Gravity-Dilaton Theory
Ardian Nata Atmaja, Hasan Abu Kassim, Norhasliza Yusof
Quantum Science Centre, Physics Department,
University of Malaya
and
Research Center for Physics, Indonesian Institute of Sciences (LIPI)
Abstract
We study asymptotically AdS solutions of the five-dimensional gravity-dilaton theory,
which generally appears in the context of the low energy effective action of closed
string theory in the Einstein frame. In particular, we consider the potential to be an
exponential function of a dilaton field parameterized by a constant $a$. We argue that
there are possible AdS black hole solutions in the range of $|a|>4/sqrt{6}$.
Keywords: Gravity-Dilaton, Asymptotically AdS, Black Holes
191
August 19-20, 2015
THE-06
Dirac Particles Emission from Reissner-Nordström-Vaidya Black Hole
Yuant Tiandho, Triyanta*
Theoretical High Energy Physics and Instrumentation Division
*triyanta@fi.itb.ac.id
Abstract
Using the Hamilton-Jacobi method, we study the Dirac particles emission of ReissnerNorström-Vaidya (RNV) black hole. The Dirac particles are described by charged Dirac
equation in curved space-time and emission process is defined as tunneling effect. The
probability of Dirac particles emission are related to Hawking temperature and its value
is equal to Hawking temperature by spinless particles emission. Further, in this work we
also show that the mass of Dirac particles does not affect to the Hawking temperature.
Keywords: Tunneling method; Charged black hole; Hawking radiation, Dirac equation.
192
Book of Abstract |
THE-07
Supersymmetric Approach to the Solution of q-deformed Trigonometric
Poschl-Teller potential in D dimensions and its Thermodynamics
Properties’ Application
A Suparmi, C Cari, Resita Arum Sari, Lina Kurniasih, Beta Nur Pratiwi
Physics Department, Faculty of Mathematics and Science, Sebelas Maret University,
Jl. Ir. Sutami 36A Kentingan Surakarta 57126, Indonesia
Abstract
D-dimensional relativistic energy spectra and wave functions of q-deformed
trigonometric Poschl-Teller potential were analyzed using Supersymmetric Quantum
Mechanics which was initially developed to explain the scenario of broken
supersymmetry in field theory. The relativistic energy equation was obtained by using
the properties of shape invariant potential and the relativistic wave functions were
obtained by using the SUSY raising and lowering operators. In the non-relativistic limit,
the relativistic energy spectra for exact spin symmetry case reduced into non-relativistic
energy spectra. In the classical regime, the partition function, the vibrational specific
heat, and the vibrational mean energy of some diatomic molecules were calculated from
the non-relativistic energy spectra with the help of error function.
Keywords: q-deformed trigonometric Poschl-Teller, Supersymmetric quantum
mechanics, relativistic and non relativistic energy, thermodynamics
properties
193
August 19-20, 2015
THE-08
Analytical Solution of Dirac equation for q-deformed Hyperbolic ManningRosen potential in D dimensions Using SUSY QM and its Thermodynamics
Properties’ Application
C Cari, A Suparmi, Muchtar Yunianto, Khaled I K Alemgadmi, U A Deta
Physics Department, Faculty of Mathematics and Science, Sebelas Maret University,
Jl. Ir. Sutami 36A Kentingan Surakarta 57126, Indonesia
Abstract
The Dirac equation of q-deformed hyperbolic Manning Rosen potential in D dimension
was solved by using Supersymmetric Quantum Mechanics (SUSY QM). The D
dimensional relativistic energy spectra were obtained by using SUSY QM and shape
invariant properties and D dimensional wave functions of q-deformed hyperbolic
Manning Rosen potential were obtained by using the SUSY raising and lowering
operators. In the non-relativistic limit, the relativistic energy spectra for exact spin
symmetry case reduced into non-relativistic energy spectra and so for the wave
functions. In the classical regime, the partition function, the vibrational specific heat,
and the vibrational mean energy of some diatomic molecules were calculated from the
non-relativistic energy spectra with the help of error function and imaginary error
function.
Keywords: Dirac equation, q-deformed hyperbolic Manning-Rosen potential, SUSY
QM, thermodynamics properties
194
Book of Abstract |
THE-09
Analytical Solution OF The Dirac Equation for Pseudospin Symmetry With
Modified Poschl-Teller Potential and Trigonometric Scarf Ii Non-Central
Potential using Asymptotic Iteration Method
Beta Nur Pratiwi, A. Suparmi, and C. Cari
Physics Department, Sebelas Maret University
Abstract
Analytical solution of the Dirac equation for modified Poschl-Teller potential and
trigonometric Scarf II non-central potential for pseudospin symmetry have been studied
by using Asymptotic Iteration Method. Dirac equation was solved by separation of
variables into one dimensional Dirac equation. The radial and angular part equation can
be reduced into one dimensional Schrodinger type equation by variable and wave
function substitution. Relativistic energy equation and wave function are obtained from
one dimensional Schrodinger type equation by using Asymptotic Iteration Method.
Relativistic energy equation are calculated numerically by Matlab software. And then
energy spectrum and wave function are visualized by Matlab software. By using
asymptotic iteration method, the relativistic energy equation and orbital quantum
number equation l can be obtained, where both are interrelated between quantum
numbers. Several quantum wave functions corresponding to several states are presented
in terms of the hipergeometric function.
Keywords: Dirac equation for pseudospin symmetry, modified Pöschl-Teller potential,
trigonometric Scarf II non-central potential , asymptotic iteration method
195
August 19-20, 2015
THE-10
Superconducting Dirac Born Infeld Strings
Ika Ikrima, Handhika S. Ramadhan, Terry Mart
University of Indonesia
Abstract
Superconducting cosmic strings is possible play an important role in formation of
structure the universe. The physics of this phenomenon is explored by studying field
theory in the string interior. This paper shown numerical solutions of superconducting
strings with all that relevant fields. The field is generalization of usual field theory
bosonic superconducting global string when the kinetic term is Dirac Born Infeld (DBI).
Changes in the characteristics of the superconducting string DBI with the usual case of
superconducting strings have been observed. Observations included physical
mechanism for all related fields.
Keywords: Superconducting string; Dirac Born Infeld; Strings Field Theory
196
Book of Abstract |
THE-11
The Effect of Spin 3/2 Nucleon Resonances in Kaon Photoproduction
A. J. Arifi and T. Mart
Abstract
We have studied and compared two different formulations of spin 3/2 nucleon
resonances by means of kaon photoproduction on the proton γp→K+Λ. The formulations
of spin 3/2 nucleon resonances proposed by Adelseck (model A) and Pascalutsa (model
B) have been used in deriving the scattering amplitudes. The amplitudes are calculated
by means of the relevant Feynman diagrams for the process. All nucleon resonances
with spin up to 3/2 listed by the Particle Data Group are included in the model. Both
formulations are then compared with experimental data including cross section and
polarization observable through χ2 minimization. It is found that the Pascalutsa
formulation of the spin 3/2 leads to a better agreement with experimental data.
Keywords: Kaon Photoproduction, Nucleon Resonances, and Feynman Diagram
197
August 19-20, 2015
THE-12
Effects of the Consistent Interaction on Kaon Photoproduction with Spin
5/2 Nucleon Resonances
Samson Clymton
Departemen Fisika, FMIPA, Universitas Indonesia, Depok 16424, Indonesia
Abstract
We have studied kaon photoproduction on the proton using an effective lagrangian
approach. We have calculated the spin 5/2 resonance amplitude using consistent
interaction. All nucleon resonances with spin 5/2 listed by Particle Data Group are
included. The unknown coupling constants are extracted from fitting to around 7400
data points. We compare the result with Kaon-MAID and other model with spin 5/2
nucleon resonances. We found some interesting phenomena appearing due to the effects
of consistent interaction.
Keywords: Kaon photoproduction; Spin 5/2; Consistent interaction
198
Book of Abstract |
THE-13
Higher Dimensional Maximally Symmetric Stationary Manifold with Pure
Gauge Condition and Codimension One Flat Submanifold
Abednego Wiliardy a*), Bobby Eka Gunara a,b)
a) Theoretical Physics Laboratory, Theoretical High Energy Physics and
Instrumentation Research Group,
Jl. Ganesha no. 10 Bandung 40132, Indonesia
*abednego.wiliardy@gmail.com
b) Indonesia Center for Theoretical and Mathematical Physics (ICTMP)
Abstract
An n dimensional flat manifold N is embedded into an n+1 dimensional stationary
manifold M whose metric has the form
where
are the components of metric of submanifold N. Taking several assumption such as
1) the ambient manifold M to be maximally symmetric space and satisfying a pure
gauge condition, and 2) the submanifold is taken to be flat ( ), we find then the
solution that satisfies Ricci scalar of N. Moreover, we will find the compatibility of
the solution with the Ricci and Riemann tensor of manifold N depends on the dimension
n.
Keywords: stationary manifold; maximally symmetric space; pure gauge; flat
submanifold
199
August 19-20, 2015
THE-14
Wave Function Modification to Accelarate Adiabatic Dynamics in Quantum
Mechanics
Iwan Setiawan a*), Bobby Eka Gunara b), Katsuhiro Nakamura c)
a). Theoritical and High Energy Physics, Physics Dept. Bandung Insitute of
Technology. Jalan Ganesha 10, Bandung 40132, Indonesia
*iwanphysics@gmail.com
b) Theoritical and high energy Physics, Physics Dept. Bandung Insitute of Technology.
c) Department of Applied Physics, Osaka City University, Sumiyoshi-ku,
Osaka 558-8585, Japan
Abstract
We propose a method to accelerate adiabatic dynamics of wave functions (WFs) in
quantum mechanics to obtain a final adiabatic state except for the spatially uniform
phase in any desired short time. In this method we combine these two ideas, i.e. we
propose a theory to accelerate the adiabatic dynamics in quantum mechanics and obtain,
in any desired short time, the target state originally accessible after an infinite time
through the adiabatic dynamics. By using this theory, we can find a driving potential to
generate the target state exactly. The fast-forward of the adiabatic dynamics makes an
ideal transport of quantum states possible; a stationary wave packet (WP) is moved to an
aimed position without leaving any disturbance at the end of the transport.
Keywords: accelerate, adiabatic dynamics, wave functions
200
Book of Abstract |
THE-15
Spherically Symmetric Gravity with Nonminimal Derivative Coupling
Ainol Yaqin* and Bobby E. Gunara
Theoretical Physics Laboratory,
Theoretical High Energy Physics and Instrumentation Research Group,
Jl. Ganesha 10 Bandung 40132, Indonesia
*yaqin.al@students.itb.ac.id
Abstract
We study a gravitational model with nonminimal derivative coupling and a potential
V(ϕ). We analytically obtain solutions that admit spherically symmetric which also
include a wormhole solution with regular scalar field. We find that ADM mass of a
wormhole with nonminimal derivative coupling could be positive and/or negative
depending on derivative coupling constants. Finally, we perform a analysis to determine
the stability of our model.
Keywords: nonminimal derivative coupling, spherically symmetric, wormhole.
201
August 19-20, 2015
THE-16
Magnetised-Kerr/CFT Correspondence
Haryanto M. Siahaan
Universitas Katolik Parahyangan
Abstract
In this talk, I show that the conjectured Kerr/CFT holds for the case of Kerr black holes
immersed by magnetic field. Using several methods, I compute the central charge
associated with the near horizon geometry of an extreme magnetised Kerr black hole.
The Bekenstein-Hawking entropy for magnetised Kerr black hole can be recovered by
using Cardy formula in the dual 2D CFT.
Keywords: black holes, holography, CFT
202
Book of Abstract |
THE-17
Modified Hawking Mass and Geroch Monotonicity on 2-Surfaces
Flinn C. Radjabaycolle a,b), Fiki T. Akbar a), Jusak Kosasiha), Bobby E. Gunaraa)
a) Theoretical Physics Laboratory,
Jl. Ganesha 10 Bandung 40132, Indonesia.
b) Department of Physics,
Cenderawasih University
Jl. Kampwolker Kampus Uncen Baru Waena-Jayapura 99351, Indonesia.
Abstract
In this paper, we study several aspects of the modified Hawking mass on 2-surfaces
defined as
where , , and are the scalar curvature of the
surface Σ, the mean curvature of the surface Σ, and a constant, respectively. Finally,
with Geroch approach we study the monotonicity properties of the Hawking mass and it
has been shown that the function
is nondecreasing as a function of t.
Keywords: Hawking mass, mean curvature, Geroch monotonicity, 2-surfaces
203
August 19-20, 2015
THE-18
Matching the Nagy-Soper parton shower at next-to-leading order
M. Czakon, H. B. Hartanto, M. Kraus, M. Worek
RWTH Aachen University
Abstract
We give a short review of the Nagy-Soper parton shower construction, that includes full
quantum correlations in the shower evolution. To increase the accuracy of theoretical
predictions, matching the Nagy-Soper shower to a next-to-leading order calculation is
performed within the MC@NLO formalism. We will show results for top quark pair
production in association with one hard jet at the LHC.
Keywords: Monte Carlo Simulations, NLO computations
204
Book of Abstract |
THE-19
Localization of Interacting Fields in a Five-Dimensional Brane Model
Dewi Wulandari a,b*), Triyanta b), Jusak S. Kosasih b), Douglas Singleton c)
a) Physics Department, Universitas Negeri Medan,
Jalan Willem Iskandar, Pasar V, Medan Estate 20221, Indonesia.
b) Theoretical High Energy Physics and Instrumentation Research Division,
Jalan Ganesha 10 Bandung 40132, Indonesia.
*wulziephyc@gmail.com
c) Physics Department, California State University Fresno,
2345 East San Ramon Avenue M/S 37, Fresno, California 93740-8031, USA.
Abstract
We study the localization properties of fundamental fields which are coupled through
the gauge mechanism both in the original Randall-Sundrum metric model and in a
modified Randall-Sundrum metric model. We investigate the conditions of localization
for each case. We derive the equation of motions for scalar, vector, and spinor fields
from the Lagrangian formulation which is invariance under a local gauge
transformation. We solved the solution of field equations that correspond to the extra
dimension and analyzed the localization of fields to the brane. We found that the
modified Randall-Sundrum metric model has different localization properties for fields
as compared to the original Randall-Sundrum metric model. We found that the modified
Randall-Sundrumbrane metric could localize each standard model field with the specific
conditions but the original Randall-Sundrum metric could not localize each standard
model field.
Keywords: Field Localization, Braneworld, Modified Randall-Sundrum Brane Metric
205
August 19-20, 2015
THE-21
Energy Conditions for Five Dimensional Cosmological Model with
Nonminimal Derivative Coupling
Getbogi Hikmawan 1), Agus Suroso 1,2), Freddy P. Zen 1,2)
1. Theoretical Physics Laboratory, THEPI Division,
2. Indonesia Center for Theoretical and Mathematical Physics (ICTMP),
Abstract
The Energy condition is studied for five dimensional cosmological model with nonminimal derivative coupling (NMDC) between scalar field and curvature tensor. We
assume that the scale factors of three dimensional space ( ) and the extra dimension (
) is related by
=
, where is a constant. We also define a total pressure of
scalar field, = +
, where
is three dimensional space pressure,
is extra
dimension pressure, and is a constant. Then we apply the Null Energy Condition
(NEC), Weak Energy Condition (WEC), Strong Energy Condition (SEC) and Dominant
Energy Condition (DEC) to our model and investigate some constraint in order the
energy condition violated. Interestingly, the constraint that we found is appropriate with
cosmological model with four dimensional universe is expanding with positive
acceleration and extra dimension is decaying.
Keywords: Energy Condition, Non-minimal Derivative Coupling (NMDC), Scalar
Field
206
Book of Abstract |
THE-23
Stability of Fake Flat Domain Walls on Kahler Manifold
Fiki T. Akbar a*), Rio N. Wijaya a), Bobby E. Gunara a,b)
(a) Theoretical Physics Laboratory,
Jl. Ganesha no. 10 Bandung, Indonesia, 40132
(b) Indonesian Center for Theoretical and Mathematical Physics (ICTMP)
Abstract
In this paper, we study the stability of flat fake domain walls solution of
fake N=1 Supergravity in d+1 dimensions with Kahler surface as the sigma model. We
start with Lagrangian for fake N=1supergravity which is coupling between gravity and
complex scalar in d+1 dimensions with scalar potential turned on. Then, as in
supergravity theory, we demand that the scalar fields span the Kähler manifold. The
equations of motion for fields can be reduced into first order equations by defining the
superpotential and the resulting equations are called the projection equation and the fake
BPS equation.Finally, we discuss about the stability of flat fake domain walls by
investigating the critical points of the superpotential and the scalar potential.
Keywords: Stability, Fake Supergravity, Domain Walls solution
207
August 19-20, 2015
THE-24
Characteristics of Symmetric Nuclear Matter at ZeroTemperature
Annisa Fitri, Anto Sulaksono
Department of Physics, University of Indonesia
Abstract
Heavy ion collision produces a condition where the total of proton equal with the total
of the neutron, this condition is named Symmetric Nuclear Matter (SNM). The
investigation of SNM characteristic is still being done nowadays. Effects of nonlinear
term are considered to contribute to characteristics of SNM, in addition to the
examination of the stability equation of state were calculated using extended mean field
method. Advanced checking the stability of the energy equation is done by observing
the sound velocity values each parameter. The solution of scalar density equation, scalar
potential, and first derivative of scalar potential are showed by crossing point of three
curves. The investigation of non linear effects to the binding energy increasing and
pressure every rise of temperature. G2 which has cross coupling term contributes to
restrain increasing of SNM energy, it is shown by the G2 parameter curve is softest.
NLZ is stiffest, and has biggest
value when high effective mass condition. The
stability of energy equation every parameter could be said mentioned realistic, it is
considered from $\frac{C^2_s}{C^2}<1$ value, but each parameter has instability
region when low effective mass condition is happened, because the values
are
negative.
Keywords: effective, mass, parameter, pressure, sound, velocity.
208
Book of Abstract |
THE-25
Boson Stars in Flat Space with Repulsive Self-Interaction of Meson Vectors
M. Fitrah Alfian R. S.* and Anto Sulaksono
University of Indonesia, Depok, Indonesia 16424
*fitrahalfian@sci.ui.ac.id
Abstract
Spherically symmetric static boson stars are solutions of the system of equations of
Klein-Gordon equation which is coupled to the Einstein and Proca equation with
complex scalar field with U(1) gauge symmetry. We solve the system of equations in
the flat space then we boost the equations of state (EOS) to the curved space. The
system of equations is assumed to be inhomogeneous so, the pressure in tangential
direction is different to the pressure in radial direction that shows the anisotropic EOS.
We find numerically solutions to see the EOS which are formed in boson stars as the
consequence of inhomogeneous assumption. Then we find the solutions due to the
homogenous assumption. The result shows there’s no stable solution for inhomogeneous
assumption, but we get stable solutions due to the homogeneous assumption to get the
characteristics of boson stars.
Keywords: boson stars, Klein-Gordon equation, Proca equation, inhomogeneous,
homogeneous, EOS
209
August 19-20, 2015
THE-26
Feynman amplitude for Dirac and Majorana neutrinos
Asan Damanik
Faculty of Science and Technology, Sanata Dharma University
Kampus III USD Paingan, Maguwoharjo, Sleman, Yogyakarta
E-mail: d.asan@lycos.com
Abstract
Theoretically, neutrino can be assigned as a Dirac or a Majorana particle. Even though
the experiments that have been performed so far, i.e. neutrinoless double beta decay to
proof the neutrino as a Majorana particle, gave negative result, we still have no strong
argument to put neutrino as a Dirac particle. In this talk, we study and evaluate the
Feynman amplitude for both Dirac and Majorana neutrinos in elastic neutrino-electron
sctattering and hoping that the scattering technique can be used as an alternative method
to decide the neutrino nature whether neutrino is a Dirac or a Majorana particle.
Keywords: Feynman amplitude, Dirac neutrino, Majorana neutrino, elastic scattering.
210
Book of Abstract |
THE-27
Dynamics of Massive Interacting Scalar Fields in Bekenstein-SandvikBarrow-Magueijo Theory
Azrul S. K. Pohan 1,2, Husin Alatas 1,3, Bobby E. Gunara 1,4
1)Indonesia Center for Theoretical & Mathematical Physics (ICTMP),
2)Theoretical Physics Division, Department of Physics,
Institut Teknologi Sumatera, Indonesia
3)Theoretical Physics Division, Department of Physics,
Bogor Agricultural University, Indonesia
4)Theoretical High Energy Physics & Instrumentation Research Division,
Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Indonesia
Corresponding Email: alatas@ipb.ac.id
Abstract
We examine the dynamical characteristics of massive interacting scalar field introduced
in the Bekenstein-Sandvik-Barrow-Magueijo (BSBM) Theory. Based on the
classification of radiation and matter dominated cosmological eras, we found that there
are few possible physical scenarios that allowed by the model. We present the analysis
of its dynamics in terms of phase space of the corresponding massive scalar field. The
results demonstrate distinct characteristics between those eras. Characteristic of the
related fine structure constant is also discussed.
Keywords: dynamical characteristic, massive interacting scalar field, BSBM theory
211
August 19-20, 2015
THE-28
Curvature Perturbation for Slow Roll Potensial Model by ADM Formalism
Getbogi Hikmawan 1), Agus Suroso 2) and Freddy P. Zen 2)
1 Theoretical Physics Laboratory, THEPI Division, Faculty of Mathematics and Natural
Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132, Indonesia.
2 Indonesia Center for Theoretical and Mathematical Physics(ICTMP), Faculty of
Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10
Bandung 40132, Indonesia.
Abstract
In this paper we calculate the curvature perturbation for slow roll potensial model. We
use ADM formalism to get the action and the Mukhanov equation. From this two
equation we calculate the power spectrum for first order and second order curvature
perturbation. This power spectrum give relation between quantum-mechanical
fluctuations generating during inflation and cosmological perturbations. The non
linearity that we get in second order function can give some insight to explain inflation
phenomena.
Keywords: ADM formalism, Curvature Perturbation, Inflation, Slow Roll Model.
212
Book of Abstract |
THE-29
Traveling Breathers of Peyrard-Bishop Model in DNA Molecules
Wahyu Hidayat, Sparisoma Viridi, Albertus Sulaiman, Freddy P. Zen
KK FTETI, ITB
Abstract
Traveling breathers in modified peyrard-bishop model including viscosity effect is
investigated by using numerical method. The effect of viscosity around DNA is
convinced which has randomly disturbance in traveling energy (breathers like
mathematical type of solution). This paper presents how viscosity reform the breathers’s
profiles. We also consider possibility Brownian random in DNA molecules.
Keywords: Peyrard-Bishop Model, DNA, Numerical method
213
August 19-20, 2015
THE-30
Evolution of the Equation of State of the Scalar Field in Four Dimensional
Cosmology with Nonminimal Derivative Coupling Model
Agus Suroso, Freddy P. Zen, Wahyu Hidayat, Getbogi Hikmawan
Theoretical Physics Laboratory - THEPI Division
and Indonesia Center for Theoretical and Mathematical Physics (ICTMP)
Faculty of Mathematics and Natural Sciences
Abstract
We consider a four dimensional cosmological model which the dynamics of the
spacetime was determined by a scalar field which is coupled to Einstein curvature tensor
as ∂μϕ∂νϕGμν, and a power-paw potential V(ϕ)=V0ϕN. Dynamical system method gives us
some critical points which related to stable or unstable solution the model. Then we
investigate the evolution of the equation of state of the scalar field near the stable point
and discuss some physical interpretation.
Keywords: nonminimal derivative coupling, cosmology
214
Book of Abstract |
THE-31
On Self-Dual Toric Four-Manifold
Rio N. Wijaya 1), Fiki T. Akbar 1), Bobby E. Gunara 1,2)
(1) Theoretical Physics Laboratory
Theoretical High Energy Physics and Instrumentation Research Group
Jl. Ganesha no. 10 Bandung, Indonesia, 40132
(2)Indonesian Center for Theoretical and Mathematical Physics (ICTMP)
Abstract
In this paper we consider four dimensional manifold that admit torus symmetry, namely
in Joyce form. Then, by employing the conformal transformation to the four-manifold,
we impose the condition of Ricci scalar which results a nonlinear differential equation
on the upper half plane. Applying a perturbative-like expansion and the Green function
methods, we construct a solutions which has the form of a particular class of
hypergeometric functions.
Keywords: Four Manifold, Joyce Form, Self Dual
215
August 19-20, 2015
THE-32
Nonlinear model of the specificity of DNA-protein interactions
Donny Dwiputra, Wahyu Hidayat, Rizki Khairani, Freddy Permana Zen
Abstract
Specific DNA-protein interactions are fundamental processes of living cells. We
propose a new model of DNA-protein interactions to explain the site specificity of the
interactions. The hydrogen bonds between DNA base pairs and between DNA-protein
peptide group play a significant role in the determination of specific binding site. We
adapted the Morse potential with a weak coupling term to construct the Hamiltonian of
coupled oscillators representing the hydrogen bonds in which the depth of the potentials
vary in the DNA chain. The stability of the model is also investigated to determine the
conditions satisfying the biological circumstances of the DNA-protein interactions.
Keywords: DNA-protein interactions, Morse Potential
216
Book of Abstract |
THE-33
Parameter variation analysis of Peyrard-Bishop Model of DNA with Cubic
and Quintic CGLE
Hanley Andrean, Wahyu Hidayat, Freddy Permana Zen
Abstract
In this paper, we consider the Peyrard-Bishop (PB) model of DNA with Quintic
Complex Ginzburg-Landau Equation (CGLE). The parameters of CGLE: , , β, µ, and
 will be analyzed and its biological meaning will be interpreted. The analysis is done
by varying the values of the parameters and look for classes of solutions which emerge
from the variation of parameter values.
Keywords: model DNA
217
physics
Department of Physics
2015

Book of Abstracts - Physics ITB Conference Archive

Transcription

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