Komputasi Nuklir: Pendekatan dan PerkembangannyaSparisoma Viridi
The document discusses nuclear computation approaches and developments. It describes how fast computing developments can guide dangerous experiments like in nuclear reactors, complementing direct measurements. Collaboration across fields is needed, especially the underlying sciences for measurements. The speaker presents on TensorFlow, GPU and distributed computing applications in nuclear physics like reconstructing fusion plasmas. Real-time computation can guide fusion reactor experiments every 20 minutes based on pushed data and inverse problem calculations.
Komputasi Nuklir: Pendekatan dan PerkembangannyaSparisoma Viridi
The document discusses nuclear computation approaches and developments. It describes how fast computing developments can guide dangerous experiments like in nuclear reactors, complementing direct measurements. Collaboration across fields is needed, especially the underlying sciences for measurements. The speaker presents on TensorFlow, GPU and distributed computing applications in nuclear physics like reconstructing fusion plasmas. Real-time computation can guide fusion reactor experiments every 20 minutes based on pushed data and inverse problem calculations.
Simulation of cell budding & binary fission:A preliminary study using molecu...Sparisoma Viridi
International Conference and School on Physics in Medicine and Biosystems, to be held virtual on Zoom from 6 to 8 November 2020, IPB University, Bogor, Indonesia, url https://www.icspmb.org/
Molecular Dynamics (MD) Method and Agent-Based Model (AMB) in Simulation of S...Sparisoma Viridi
The document describes a proposed simulation system to model stem cell deposition on nanopatterned surfaces using molecular dynamics and agent-based modeling methods. It first reviews previous works on simulating stem cell differentiation and proliferation influenced by extracellular matrix properties. The proposed simulation system would represent stem cells as layers of cells that can deposit on configurable nanopatterned substrates, including nanopillars and nanopits. The document acknowledges that further development is still needed, as an initial configuration of the simulation system has been established.
Constructing Origin-Destination Matrix (ODM) using Agent-Based Model (AMB) in...Sparisoma Viridi
This document summarizes a study that uses an agent-based model to construct origin-destination matrices for commuting systems. It discusses how agent-based modeling can simulate individual commuter behaviors to estimate traffic flows between origin and destination nodes without large surveys. The study presents a simulation of commuters traveling between four cities connected by roads, tracking their visits to generate origin-destination matrices under different population densities. The matrices show traffic flows scaling with population as expected.
The Relation between ABM (Agent-Based Model) and SIR (Susceptible-Infected-Re...Sparisoma Viridi
This document discusses the relationship between agent-based models (ABM) and the susceptible-infected-recovered (SIR) model for modeling the spread of infectious diseases. It outlines ABM and SIR models and their applications. The document then presents three cases where ABM can provide insights that SIR cannot, such as accounting for spatial factors. It also shows how ABM can reveal phenomena like a second wave of infection that results from combining infection data from multiple connected regions. The conclusion is that ABM provides more detailed information than SIR models and can be used to study disease transmission networks between agents.
In-House Training Online Penyusunan Jurnal Sains, SEAMEO QITEP in Science (SEAQIS), Bandung, Indonesia, 14-16 April 2020, url https://doi.org/10.5281/zenodo.3751238
Resume beberapa hal yang dapat menyebabkan perubahan fasa pada gelombang sebagai persiapan untuk fenomena gelombang stastioner, interferensi dua sumber, interferensi lapisan tipis, pelayangan, dan lainnya
Dokumen ini membahas tentang getaran dan gelombang, termasuk definisi osilasi harmonik, perambatan gelombang, dan persamaan gelombang. Dibahas pula fungsi gelombang umum yaitu A sin(kx - ωt) beserta hubungannya dengan persamaan gelombang diferensial ∂2y/∂x2 = 1/v2∂2y/∂t2.
Kuliah ini membahas tentang pentingnya berpikir terstruktur dalam memecahkan masalah fisika, penggunaan analogi untuk memahami berbagai konsep secara terintegratif, dan bagaimana penerapan konsep fisika dasar dalam kegiatan hiburan seperti research-based learning dapat membuat pemahaman menjadi lebih menyenangkan.
Compaction of two-dimensional system of composite spherical particles under i...Sparisoma Viridi
This document summarizes a presentation given at the International Symposium on Space Science in 2019. The presentation discussed a simulation of how composite spherical particles compact under self-gravitation. The simulation considered different families of composite particles, including S-family and H-family particles. The results showed that while S-family particles could influence their neighbors' configuration, the presence of H-family particles overrode this effect, leading to different compacted structures. Going forward, the presenters planned to generate more configurations, include M-family particles, and explore different members of the composite particle families.
Simulation of Blood Cell Separation System Based on Inertia and Elasticity us...Sparisoma Viridi
The document proposes a simulation design for blood cell separation using molecular dynamics. It discusses previous works on blood separation techniques and molecular dynamics simulations. The proposed design uses normal and drag forces calculated through molecular dynamics and the Euler algorithm to simulate cell movement. Experimental validation is still needed to tune the system and determine the fluid flow velocity profile in complex channel geometries like junctions. The source code for the simulation is available online.
Diffusion Simulation with JS: Writing Your Own ABM CodeSparisoma Viridi
Slide for Workshop on Biophysics, Room D, 10.00-12.00, Friday, 9 August 2019 in 17th SEACOMP 2019 & 3rd PIT-FMB 2019, 8-10 August 2019, Badung, Indonesia
Banyak orang menganggap mempelajari kitab Wahyu adalah sulit. Selain karena membicarakan simbol-simbol yang tidak biasa, kitab Wahyu juga memiliki tema-tema yang kompleks. Nah, bagaimana cara terbaik membedah kitab Wahyu?
Mari kita pelajari bersama lebih dahulu 3 pasal pertama dari kitab ini dalam kelas diskusi "Bedah Kitab Wahyu" (BKW) pada 19—26 Juni 2024 melalui grup WA.
Sebelum kelas dimulai, ikuti lebih dahulu pemaparan materinya via Zoom pada:
Rabu, 19 Juni 2024.
- Pagi: pkl. 10.30—12.00 WIB
- Malam: pkl. 19.00—20.30 WIB
Daftarkan diri Anda segera di https://bit.ly/form-mlc.
Kontak:
WA: 0821-3313-3315 (MLC)
E-Mail: kusuma@in-christ.net
Simulation of cell budding & binary fission:A preliminary study using molecu...Sparisoma Viridi
International Conference and School on Physics in Medicine and Biosystems, to be held virtual on Zoom from 6 to 8 November 2020, IPB University, Bogor, Indonesia, url https://www.icspmb.org/
Molecular Dynamics (MD) Method and Agent-Based Model (AMB) in Simulation of S...Sparisoma Viridi
The document describes a proposed simulation system to model stem cell deposition on nanopatterned surfaces using molecular dynamics and agent-based modeling methods. It first reviews previous works on simulating stem cell differentiation and proliferation influenced by extracellular matrix properties. The proposed simulation system would represent stem cells as layers of cells that can deposit on configurable nanopatterned substrates, including nanopillars and nanopits. The document acknowledges that further development is still needed, as an initial configuration of the simulation system has been established.
Constructing Origin-Destination Matrix (ODM) using Agent-Based Model (AMB) in...Sparisoma Viridi
This document summarizes a study that uses an agent-based model to construct origin-destination matrices for commuting systems. It discusses how agent-based modeling can simulate individual commuter behaviors to estimate traffic flows between origin and destination nodes without large surveys. The study presents a simulation of commuters traveling between four cities connected by roads, tracking their visits to generate origin-destination matrices under different population densities. The matrices show traffic flows scaling with population as expected.
The Relation between ABM (Agent-Based Model) and SIR (Susceptible-Infected-Re...Sparisoma Viridi
This document discusses the relationship between agent-based models (ABM) and the susceptible-infected-recovered (SIR) model for modeling the spread of infectious diseases. It outlines ABM and SIR models and their applications. The document then presents three cases where ABM can provide insights that SIR cannot, such as accounting for spatial factors. It also shows how ABM can reveal phenomena like a second wave of infection that results from combining infection data from multiple connected regions. The conclusion is that ABM provides more detailed information than SIR models and can be used to study disease transmission networks between agents.
In-House Training Online Penyusunan Jurnal Sains, SEAMEO QITEP in Science (SEAQIS), Bandung, Indonesia, 14-16 April 2020, url https://doi.org/10.5281/zenodo.3751238
Resume beberapa hal yang dapat menyebabkan perubahan fasa pada gelombang sebagai persiapan untuk fenomena gelombang stastioner, interferensi dua sumber, interferensi lapisan tipis, pelayangan, dan lainnya
Dokumen ini membahas tentang getaran dan gelombang, termasuk definisi osilasi harmonik, perambatan gelombang, dan persamaan gelombang. Dibahas pula fungsi gelombang umum yaitu A sin(kx - ωt) beserta hubungannya dengan persamaan gelombang diferensial ∂2y/∂x2 = 1/v2∂2y/∂t2.
Kuliah ini membahas tentang pentingnya berpikir terstruktur dalam memecahkan masalah fisika, penggunaan analogi untuk memahami berbagai konsep secara terintegratif, dan bagaimana penerapan konsep fisika dasar dalam kegiatan hiburan seperti research-based learning dapat membuat pemahaman menjadi lebih menyenangkan.
Compaction of two-dimensional system of composite spherical particles under i...Sparisoma Viridi
This document summarizes a presentation given at the International Symposium on Space Science in 2019. The presentation discussed a simulation of how composite spherical particles compact under self-gravitation. The simulation considered different families of composite particles, including S-family and H-family particles. The results showed that while S-family particles could influence their neighbors' configuration, the presence of H-family particles overrode this effect, leading to different compacted structures. Going forward, the presenters planned to generate more configurations, include M-family particles, and explore different members of the composite particle families.
Simulation of Blood Cell Separation System Based on Inertia and Elasticity us...Sparisoma Viridi
The document proposes a simulation design for blood cell separation using molecular dynamics. It discusses previous works on blood separation techniques and molecular dynamics simulations. The proposed design uses normal and drag forces calculated through molecular dynamics and the Euler algorithm to simulate cell movement. Experimental validation is still needed to tune the system and determine the fluid flow velocity profile in complex channel geometries like junctions. The source code for the simulation is available online.
Diffusion Simulation with JS: Writing Your Own ABM CodeSparisoma Viridi
Slide for Workshop on Biophysics, Room D, 10.00-12.00, Friday, 9 August 2019 in 17th SEACOMP 2019 & 3rd PIT-FMB 2019, 8-10 August 2019, Badung, Indonesia
Banyak orang menganggap mempelajari kitab Wahyu adalah sulit. Selain karena membicarakan simbol-simbol yang tidak biasa, kitab Wahyu juga memiliki tema-tema yang kompleks. Nah, bagaimana cara terbaik membedah kitab Wahyu?
Mari kita pelajari bersama lebih dahulu 3 pasal pertama dari kitab ini dalam kelas diskusi "Bedah Kitab Wahyu" (BKW) pada 19—26 Juni 2024 melalui grup WA.
Sebelum kelas dimulai, ikuti lebih dahulu pemaparan materinya via Zoom pada:
Rabu, 19 Juni 2024.
- Pagi: pkl. 10.30—12.00 WIB
- Malam: pkl. 19.00—20.30 WIB
Daftarkan diri Anda segera di https://bit.ly/form-mlc.
Kontak:
WA: 0821-3313-3315 (MLC)
E-Mail: kusuma@in-christ.net
Pemodelan Satu-Dimensi Perambatan Panas Bahan Butiran dalam Proses Sangrai
1. Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
1
Pemodelan Satu-Dimensi
Perambatan Panas Bahan
Butiran dalam Proses Sangrai
Sparisoma Viridi1
*, Nuraina Fika Lubis2
, Rafika Sari3
Department of Physics, Institut Teknologi Bandung, Indonesia
Master Program in Physics, Institut Teknologi Bandung, Indonesia
Department of Informatics, Universitas Bhayangkara Jaya, Indonesia
*dudung@gmail.com
20181204.3
v20181203_0
2. Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
2
Kerangka
• Pendahuluan
• Teori
• Hasil dan diskusi
• Penutup
..
..
4. Memasak dengan pasir panas
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
4
Inna, “How To Fry Groundnut”, Jiji.ng Blog, https://blog.jiji.ng/2018/01/how-to-fry-
groundnut/ [20181204]
5. Memasak dengan pasir .. (lanj.)
• Memasak bahan makanan dengan pasir yang
dipanaskan telah lama dikenal orang
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
5
LA. Wandsnider, The roasted and the boiled: Food composition and heat Treatment with
special emphasis on pit-hearth cooking, Journal of Anthropological Archaeology 16
(1997) 1
6. Sangrai
• Cara memasak seperti ini di Indonesia dan
sekitarnya lebih dikenal dengan nama sangrai
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
6
W. Pratiwi, Teknik puffing pemanasan konduksi granula pasir panas dalam pembuatan
berondong jagung varietas unggul nasional, Skripsi Sarjana, Institut Pertanian Bogor,
Bogor, Indonesia, 2009
7. Sattu
• Di India, jelai (jawawut) umumnya dikonsumsi
dalam bentuk yang telah disangrai yang dise-
but sattu, di mana jelai utuh disangrai dengan
pasir panas bertemperatur 250 – 300 °C untuk
waktu yang singkat sampai butirannya me-
ngembang memisahkan kulitnya
• Mirip berondong jagung
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
7
P. Sharma and H.S. Gujral, Effect of sand roasting and microwave cooking on
antioxidant activity of barley, Food Research International 44 (2011) 235
8. Pasir
• Pasir merupakan bahan butiran (granular
material), yang merupakan bahan yang ter-
susun atas partikel yang lebih kecil yang sifat
mekaniknya ditentukan oleh interaksi antar
partikelnya
• .. dan juga seharusnya sifat termalnya
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
8
J.E. Andrade, C.F. Avila, S.A. Hall, N. Lenoir, and G. Viggiani, Multiscale modeling and
characterization of granular matter: From grain kinematics to continuum mechanics,
Journal of the Mechanics and Physics of Solids 59 (2011) 237
10. Pemanasan kompor listrik
• Kompor listrik dengan resistans kumparan
pemanasnya R yang diberi tegangan V akan
menghasilkan daya
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
10
C.R. Nave, "DC electric power", HyperPhysics, 2017, url http://hyperphysics.phy-
astr.gsu.edu/hbase/electric/elepow.html [20181204]
coil
2
in
coil
R
V
P =
11. Energi panas yang diterima wajan
• Dengan massa wajan m dan kalor jenisnya c
yang semula memiliki temperatur T(t) dalam
selang waktu Δt akan memiliki temperatur
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
11
( ) ( )
wokwok
coil
wokwok
cm
tP
tTttT
∆
+=∆+
C.R. Nave, “Specific heat", HyperPhysics, 2017, url http://hyperphysics.phy-
astr.gsu.edu/hbase/thermo/spht.html [20181204]
12. Sistem wajan, butiran, lingkungan
• Dilakukan diskritisasi berbasis grid 1-d
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
12
13. Hukum Fourier
• Padatan dengan luas penampang A, panjang
L, dan memiliki konduktivitas termal κ, untuk
setiap satuan waktu Δt akan menghantarkan
panas
yang kedua ujungnya bersuhu TH dan TL
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
13
F. Kreith, R.M. Manglik, and M.S. Bohn, Priciples of Heat Transfer, Cengage Learning,
Stamford, USA, 2011, pp. 9-10
−
∆=
L
TT
tAQ LH
κ
14. Hukum Stefan-Boltzmann
• Suatu titik dengan luas A untuk setiap satuan
waktu Δt akan meradiasikan panas
bila temperaturnya T dan lingkungannya Tenv
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
14
C. Johnson, Mathematical physics of blackbody radiation, Icarus iDucation, 2012, pp. 18-
22.
( )4
env
4
TTtAQ −∆= σε
15. Hukum kekekalan energi
• Panas dari satu bagian akan dirambatkan ke
bagian lain
• Temperatur lingkungan dianggap selalu tetap
(suatu tandon bertemperatur Tenv)
• Pada akhirnya akan tercapai temperatur
transien T∞
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
15
17. • Terdapat N buah grid
Model berbasis grid 1-d
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
17
Vin
Rcoil
Twok TenvT1 T2 T4 T5 TN-1 TN
sand
wok1
κtA
QL
TT
∆
−=
σεtA
Q
TT
∆
−= 4
1
4
2
food
45
κtA
QL
TT
∆
−=
σεtA
Q
TTN
∆
−= 4
env
4
18. Reduksi parameter
• Diperkenalkan parameter intensitas
yang nilainya diberikan sama
• Batasan yang perlu diperhatikan adalah
bahwa
TH – TL >> 0
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
18
tA
Q
I
∆
=
19. Parameter dan konstanta
Material
κ
(W·m−1
·K−1
)
cp
(J·kg−1
·K−1
) ε
Cast iron 0.27 800 0.76
Sand 63 461 0.44
Peanut 0.15 1680 0.8
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
19
I = 1 J·s–1
·m–2
σ =5.670367 × 10–8
·W·m–2
·K–4
Δt = 10–5
s, L = 1 mm, V = 220 V, R = 10 Ω, Tenv = 300 K
20. Notasi
• Susunan di atas dinotasikan dengan matrix
baris
[-1 1 0 1 2 2 1 .. 1 0]
dengan
-1: pemanas, 0: vakum (udara),
1: pasir, 2: makanan
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
20
23. Ringkasan
• Pemodelan satu-dimensi perambatan panas
bahan butiran dalam proses sangrai telah da-
pat dirumuskan
• Perambatan panas masih searah
• Faktor I = Q/(AΔt) masih perlu diverifikasi
menggunakan eksperimen, sehingga hasil
telah dapat bebas dari parameter numerik
-nya
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
23
24. Ucapan terima kasih
• Terima kasih kepada panitia SKF 2018 atas
penyelenggaraan kegiatan ini dan juga atas
dukungannya pada presentasi ini
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
24
25. Rencana lanjut
• Memodifikasi algoritma sehingga perambatan
panas dapat dua arah dan mendukung banyak
titik pemanasan
• Melakukan eksperimen yang mendukung
skema pemodelan
• Menjalin kolaborasi terkait dengan tema ini
(tertarik ?)
Seminar Kontribusi Fisika
(SKF 2018)
4 Desember 2018,
Bandung, Indonesia
25