# Siam Physics Congress 2015

May 20 – 22, 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

## Contribution List

Prof. Sukit Limpijumnong (Thai Physics Society), Prof. Supot Hannongbua (Faculty of Science, Chulalongkorn University)
5/20/15, 9:00 AM
Dr Weerapong Paesuwan (Ministry of Science and Technology)
5/20/15, 9:10 AM
Ms Kamonpan Pengpat (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.), Mr Pichitchai Butnoi (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand)
5/20/15, 2:00 PM
Surface, Interface and Thin Film
Poster presentation
Lead zirconate titanate (PZT) films have been widely used for micro applications because of their excellent ferroelectric and piezoelectric properties. In this study, surface morphology and electrical properties of lead zirconate titanate films have been investigated. The PZT films have been prepared by a sol-gel method and deposited on silicon wafers by spin coating under different annealing...
Mr Chaiyon Chaiwai (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiangmai, 50200, Thailand), Dr Udomrat Tippawan (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiangmai, 50200, Thailand), Dr Yu Liangdeng (Thailand Center of Excellence in Physics, Si Ayutthaya Road,Bangkok 10400,Thailand)
5/20/15, 2:00 PM
Ion and Plasma Physics
Poster presentation
In development of MeV heavy-ion particle induced X-ray emission (PIXE) technology which has been demonstrated to be superior to conventional light proton PIXE owing to larger cross sections, MeV carbon-ion PIXE was tested and studied for availability and cross sections. The relatively low ion energy range around 1 MeV for C-ion PIXE had never been investigated before. In the work, C-ion PIXE...
Dr Suriya Phankosol (Department of Industrial and Technology Management, Faculty of Science and Technology, Bansomdejchaopraya Rajabhat University, Bangkok 10600, Thailand)
5/20/15, 2:00 PM
Environmental Physics, Atmospheric Physics, Geophysics and Renewable Energy
Poster presentation
Density and viscosity are an important physical property of biodiesel. In this work, proposed a single empirical equation can be estimated without the prior knowledge of the density and viscosity of an individual fatty acid ethyl ester, an empirical approach for estimation the density and viscosity of ethyl-biodiesel are correlated to saponification number (SN), iodine value (IV) and...
5/20/15, 2:00 PM
Oral presentation
Prapaiwan Sunwong (Accelerator Technology Division, Synchrotron Light Research Institute (Public Organization) 111 University Avenue, Muang District, Nakhon Ratchasima, 30000 Thailand)
5/20/15, 2:00 PM
Poster presentation
Ultra-high vacuum is a key requirement that determines electron beam quality and lifetime for an electron accelerator complex. In operation of the Siam Photon Source (SPS), pressure distribution of storage ring has been monitored using a series of Cold Cathode Gauges (CCGs) installed in proximity to the vacuum pumps around the ring. Pressure between the CCGs was calculated based on the...
Kittikun Surawuttinack (Department of Physics, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok, Thailand 10140)
5/20/15, 2:00 PM
Statistical and Theoretical Physics
Oral presentation
An alternative class of the Lagrangian called the multiplicative form is successfully derived. This new Lagrangian can be considered as a one parameter, namely the speed of light, extended class from the standard additive form of the Lagrangian since both yield the same Newtonian equation.
Mrs Jintana Laopaiboon (Department of Physics, Faculty of Science, Ubon Ratchatani University, Ubon Ratchatani, THAILAND 34190), Mr Raewat Laopaiboon (Department of Physics, Faculty of Science, Ubon Ratchatani University, Ubon Ratchatani, THAILAND 34190)
5/20/15, 2:00 PM
Poster presentation
In study of emergency dosimeters to be used in case of accidental radiation exposure of the population, retrospective dosimetry is one of the most important for dose measurement in contaminated areas. In this paper discusses the thermoluminescence (TL) properties of alumina porcelain substrates of thin film chip resistors removed from computer circuit boards. X-ray photon energy 160 keV was...
5/20/15, 2:15 PM
Oral presentation
Kwan Arayathanitkul (Department of Physics, Faculty of Science, Mahidol University, Bangkok, THAILAND 10400), Narumon Emarat (Department of Physics, Faculty of Science, Mahidol University, Bangkok, THAILAND 10400)
5/20/15, 2:45 PM
Physics Education
Oral presentation
Team teaching is a strategy that has been used in first-year physics classes at Mahidol University for ten years. This specific method consists of two teachers working together in the same classroom. The courses were Introductory Physics I and II for first-year science students (ranging from 250 to 300 students) and the lectures were conducted in a large sloping theatre. Worksheets have been...
Ms Piyawan Leepheng (College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, 1 Chalongkrung Rd., Ladkrabang, Bangkok 10520, Thailand), Ms Sirikan Thongboon (College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, 1 Chalongkrung Rd., Ladkrabang, Bangkok 10520, Thailand)
5/20/15, 3:00 PM
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
An extended gate field-effect transistor (EGFET) is a device that can be applied to chemical sensing with the benefit of low cost electrodes. A poly(methylmethacrylate) (PMMA)-imprinted film has been applied to fabricate on indium tin oxide glass as a gate electrode for an EGFET sensor for a specific detection of carbaryl sample. The imprinted film was obtained by mixing PMMA and carbaryl in...
Ms Chitchanok Lesak (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Physics Education Research Laboratory, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand)
5/20/15, 3:15 PM
Physics Education
Oral presentation
When two objects made from different materials are rubbed and immediately separated, negative charges or electrons are then transferred from a surface of one object to another one, depending on material of each object. The charge transfer process due to rubbing is called “triboelectrification.” This study aimed to measure transferred triboelectric charges by using two methods. The first method...
Mr Chawit Chaijirawiwat (Department of Physics, Mahidol Wittayanusorn School, Thailand), Mr Metha Trikasemmart (Department of Physics, Mahidol Wittayanusorn School, Thailand), Mr Tanasate Naphathrathorn (Department of Physics, Mahidol Wittayanusorn School, Thailand)
5/20/15, 4:30 PM
Biological Physics and Biomedical Engineering
Oral presentation
Loss and damage of bone tissue is the one of the most troubling problems that jeopardize human health. Therefore, over the past decade, synthesization biocomposite materials for bone tissue engineering is becoming increasingly interested. In this study, Bio-composite material composed of hydroxyapatite/beta-tricalcium phosphate (BCP) (inorganic) and chitosan/alginate (ChiAlg) (organic)...
Mr Apichart Siriwitpreecha (Department of Industrial Physics and Medical Instrumentation, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand)
5/21/15, 8:00 AM
Biological Physics and Biomedical Engineering
Poster presentation
In Thailand, the extra high voltage 500 kV and 50 Hz overhead transmission lines have been installed by Electricity Generating Authority of Thailand (EGAT) both of single-circuit and double-circuit due to the rapid increasing of electrical power demands. The electromagnetic field will be generated and propagated to the environment in the area around overhead transmission lines. The intensity...
Mr Kritpong Kulthamrongsri (Department of Physics, Mahidol Wittayanusorn School, Nakhon Pathom, 73170, Thailand), Mr Supawit Kittipadakul (Department of Physics, Mahidol Wittayanusorn School, Nakhon Pathom, 73170, Thailand), Mr Wattanapol Sangpho (Department of Physics, Mahidol Wittayanusorn School, Nakhon Pathom, 73170, Thailand)
5/21/15, 8:00 AM
High Energy and Particle Physics
Poster presentation
Cosmic rays play an important role in our daily lives and can be used in various fields of educational research, especially in physics and astrophysics. However, the detection of cosmic rays is affected by many factors, and atmospheric water vapour pressure was recently suspected to be an important factor. Princess Sirindhorn Neutron Monitor (PSNM) is a cosmic ray detector in Chiangmai, and...
Sakshin Bunthawin (Biotechnology of Electromechanics Research Unit, Science of Physics, Faculty of Technology and Environment, Prince of Songkla University, Kathu, Phuket 83120, Thailand)
5/21/15, 8:00 AM
Biological Physics and Biomedical Engineering
Poster presentation
The present project has been extended from our previous lab-scale work of sex reversal for monosex-male Nile tilapia by using a transient pulse-electric field induction toward commercial products. All male sex reversal rate from 89.25% to 92.5% is achieved. Our newly equipment (to be patented) of electrical sex reversal was developed for large-scale of more than 10,000 eggs for each induction....
Mr Nirawith Palakawong (School of Physics and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; Thailand Center of Excellence in Physics, Commission on Higher Education, Bangkok 10400, Thailand)
5/21/15, 8:00 AM
Condensed Matter Physics
Poster presentation
SnO$_2$ is an oxide semiconductor with wide band gap, good transparency, and high thermal and chemical resistances. As-grown SnO$_2$ usually exhibits $\textit{n}$-type conductivity with high carrier concentrations, which is an obstacle to make it $\textit{p}$-type. Consequently, applications of SnO$_2$ for optoelectronics are limited. Group-III elements, such as Al, Ga, and In, are...
Sakshin Bunthawin (Biotechnology of Electromechanics Research Unit, Science of Physics, Faculty of Technology and Environment, Prince of Songkla University, Kathu, Phuket 83120, Thailand)
5/21/15, 8:00 AM
Biological Physics and Biomedical Engineering
Poster presentation
Living yeast cells in the brewery industry are active cells. They have different responses to AC electric field if they possess different dielectric properties. Electrical parameters which are used to determine health of yeast cells are the conductivities of the cytoplasm ($\sigma_c$), the cell membrane ($\sigma_m$), dielectric constant of the membrane ($\varepsilon_m$) and the cytoplasm...
Pornrat Wattanakasiwich (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Physics Education Research Laboratory, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand)
5/21/15, 8:00 AM
Physics Education
Poster presentation
This study aimed to investigate moral reasoning of the first year students in physics laboratory. An instrument used in this study was 10 open-end questions. Each question corresponded to different aspects of moral reasoning such as integrity, diligence, discipline etc. The questions were given to 10 experience physics teachers and 100 first-year engineering students taking physics laboratory....
Ms Pimpika Pimsorn (School of Physics and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of Technology, 111 University Avenue, Muang District, Nakhon Ratchasima, 30000 Thailand; Synchrotron Light Research Institute, 111 University Avenue, Muang District, Nakhon Ratchasima, 30000 Thailand; Thailand Center of Excellence in Physics (ThEP Center), Commission on Higher Education, Bangkok 10400, Thailand)
5/21/15, 8:00 AM
Condensed Matter Physics
Poster presentation
Detailed infrared (IR) absorption spectroscopy of O$_2$-related defects in zincblend-CdTe and wurtzite-CdSe were reported by Lavrov *et al* [Phys. Rev. B **84**, 233201 (2011), AIP conf. Proc. **1583**, 169 (2014)]. They clearly showed based on their experimental work that the IR absorption bands at 1096.8 and 1108.4 cm$^{-1}$ in CdTe samples are associated with the vibrational modes of...
Sakshin Bunthawin (Biotechnology of Electromechanics Research Unit, Science of Physics, Faculty of Technology and Environment, Prince of Songkla University, Kathu, Phuket 83120, Thailand)
5/21/15, 8:00 AM
Biological Physics and Biomedical Engineering
Poster presentation
The present study proposes another alternative approach to model the geometry of Nile tilapia egg for evaluation of the induced transmembrane potential. The actual shape of tilapia egg is an asymmetrical prolate spheroid with a short prolate spheroid bottom and a more elongate prolate spheroid at the top with a common equator rather than a symmetrical prolate spheroid. Unfortunately, the...
Mr Ittiwat Meesap (Undergraduate student in Manufacturing System Engineering Program, College of Data Storage Innovation King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand, 10520), Mr Tossapol Rattanapongwisut (Undergraduate student in Manufacturing System Engineering Program, College of Data Storage Innovation King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand, 10520)
5/21/15, 8:00 AM
Instrumentation, Metrology and Standards
Poster presentation
A Higher operating temperature increases a risk of mainboard in computer malfunction. In this work, the heat transfer and thermal distribution on a mainboard were investigated based on finite element analysis. We proposed boundary conditions and parameters at least to be defined. The results of simulation were compared with the actual results measured by the thermal imager. The comparison...
Sakshin Bunthawin (Biotechnology of Electromechanics Research Unit, Science of Physics, Faculty of Technology and Environment, Prince of Songkla University, Kathu, Phuket 83120, Thailand)
5/21/15, 8:00 AM
Biological Physics and Biomedical Engineering
Poster presentation
The present study proposes an alternative technique of monosex-male reversal for the commercially important marine fish, blue-spotted coral trout ($\textit{Plectropomus leopardus}$), using transient square pulse-electric and androgen hormone dose. The egg of $\textit{P.leopardus}$ had a simple spherical shape ($\approx 0.8 \pm 0.1$ mm) and its critical age of 6-19 hpf (hour post...
Sakshin Bunthawin (Biotechnology of Electromechanics Research Unit, Science of Physics, Faculty of Technology and Environment, Prince of Songkla University, Kathu, Phuket 83120, Thailand)
5/21/15, 8:00 AM
Biological Physics and Biomedical Engineering
Poster presentation
The multiple-parallel plate electrode equipped with a sequential signal generator (SSG) (to be patented) has been developed for on-site yeast separations in the brewery industry. Dead and living yeast cells were separated by using non-uniform sinusoidal electric fields. The SSG was developed from our previous lab-scale version to produce a sinusoidal phase to generate out-of-phase electric...
Kittipoom Mala (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Physics Education Research Laboratory, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand)
5/21/15, 8:00 AM
Physics Education
Poster presentation
This study aimed to calculate and to determine experimentally a focal length of a simple thick lens. The thick lens made of a round-bottom bottle (flask) completely filled with transparent liquid (such as water or oil). Four different sizes of a round-bottom flask including 100, 250, 500 ml and 1000 ml were used to change the diameter of thick lens. The focal length of thick lens was...
Ms Pokonwong Suthichon (Department of Physics and Material Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand), Pornrat Wattanakasiwich (Department of Physics and Material Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand)
5/21/15, 8:00 AM
Physics Education
Poster presentation
This paper aimed to review literatures about how mobile phone is implemented in teaching physics from more than twenties papers in journals with a section on physics teaching such as Physics Education, European Journal of Physics, The Physics Teacher, American Journal of Physics, etc. In the past few years, technology of smart mobile phones has changed the way we lives and also are going to...
Sakshin Bunthawin (Biotechnology of Electromechanics Research Unit, Science of Physics, Faculty of Technology and Environment, Prince of Songkla University, Kathu, Phuket 83120, Thailand)
5/21/15, 8:00 AM
Biological Physics and Biomedical Engineering
Poster presentation
The present study employs exponential decay pulse-electric field inductions to enhance sex reversal of Nile tilapia eggs in suspensions for monosex-male. The novel technique was the pilot study to initiate the usage of natural androgen hormone of $\textit{Butea superba}$ (Red Kwao Krua) extract instead of our previous electroporation medium of 17$\alpha$ - methyltestosterone (MT). The eggs of...
Nuchalee Schwertfager (School of Physics and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; Thailand Center of Excellence in Physics (ThEP Center), Commission on Higher Education, Bangkok 10400, Thailand)
5/21/15, 8:00 AM
Condensed Matter Physics
Poster presentation
The electronic band structure of graphene was calculated using the full-potential linearized muffin-tin orbital (FP-LMTO) method. Its resonant inelastic x-ray scattering (RIXS) spectra at various x-ray excitation energies were calculated based on Kramers-Heisenberg equation. It is found that the RIXS spectra show distinct dispersive features and are interpreted as being due to the...
Piimonpun Prasongsri (Department of Physics and Material Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; Physics Education Research Laboratory, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand)
5/21/15, 8:00 AM
Physics Education
Poster presentation
This study aimed to investigate thermodynamic properties of a rubber balloon including hysteresis and cooling effect of a deflated balloon. Firstly, pressure inside a balloon was measured using a Vernier pressure sensor and plotted as a function of the balloon averaged radius. Well-known mathematical models of inflated balloon including Mooney-Rivlin, Ogden and Gent-Gent models were used to...
Mr Akapong Buachoom (Department of physics, Faculty of Science, UbonRatchathani University, Thailand, 34190), Dr Sura Wuttiprom (Department of physics, Faculty of Science, UbonRatchathani University, Thailand, 34190)
5/21/15, 8:00 AM
Physics Education
Poster presentation
The purpose of this research was to study the development of students’ conceptions of static electricity using a laboratory group investigation model. The participants were 34 grade 10 students from Srikoonwittayabunlang School, Amnatcharoen in the second semester of the 2014 academic year. A one group pre-test/post-test design was employed in the study, and the research tools consisted of...
Rattanachai Kowong (Department of Industrial Physics and Medical Instrumentation, Faculty of Applied Science, Lasers and Optics Research Group (LANDOS), Science and Technology Institute, King Mongkut's University of Technology North Bangkok)
5/21/15, 8:15 AM
Optics, Non-linear optics, Laser Physics, Ultrafast Phenomena
Oral presentation
We propose a new approach, the Arc Discharge Drawing (ADD) technique, to fabricate silica fibers with diameters less than the wavelength of commercial available lasers. With this single-step technique, silica wires with diameters as small as 50 nm were demonstrated. This technique would provide an attractive alternative to current approaches to fabricate the silica nanowires. For...
Mr Nuttanan Tanasanchai (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand), Waranont Anukool (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
5/21/15, 8:15 AM
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We have trapped a laser-cooled single rubidium-85 atom in an optical dipole trap using sub-Poissonian loading scheme. The trap beam with 4mK depth was produced with 830nm focused laser beam. Our optical circuits based on the two-beam trap and homemade equipments are described. The photograph of a single rubidium-85 atom taken for the first time in Thailand is presented.
Mr Phumipat Kittiboonanan (Department of Industrial Physics and Medical Instrumentation, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800 Thailand)
5/21/15, 8:30 AM
Optics, Non-linear optics, Laser Physics, Ultrafast Phenomena
Oral presentation
In this paper, we present the creation of a new class of an optical surface measurement based on laser scattering principle. This technique is aimed to serve as a non-destructive testing tool for laser removal of graffiti. The laser scattering system consists of a weak HeNe laser beam that is split into two arms, the reference arm and the sample arm. The reference arm serves as the unaffected...
Rattakorn Kaewuam (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand), Waranont Anukool (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand)
5/21/15, 8:30 AM
Atomic Physics, Quantum Physics, Molecular and Chemical Physics
Oral presentation
We use the density matrix formulation to study the dynamic of atom-photon interaction of Rb-85 atoms under the cooling and repumping laser fields in a magneto-optical trap (MOT). The spontaneous emission process is taken into account using the fully-quantized theory. The obtained master equations are numerically solved for the four-level system including two levels of $5^2S_{1/2}F=2,3$ and two...
Dr Methee Promsawat (Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, THAILAND 50200; Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, THAILAND 50200)
5/21/15, 1:00 PM
Material Physics, Nanoscale Physics and Nanotechnology
Poster presentation
This work studies effects of metal oxides (MO; M = Zn${}^{2+}$, Cu${}^{+}$ and Ni${}^{2+}$) modifications on phase, microstructure, dielectric, ferroelectric and electrostrictive properties of Pb(Mg${}_{1/3}$Nb${}_{2/3}$)${}_{0.9}$Ti${}_{0.1}$O$_3$ (PMNT) ceramics. Different contents of MO (2 and 4 mol%) were modified into PMNT ceramics. The ceramics with the density about 7.80 g/cm${}^3$ were...
Ms Arisara Panthawan (Materials Science Research Center, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, THAILAND 50200)
5/21/15, 1:00 PM
Material Physics, Nanoscale Physics and Nanotechnology
Poster presentation
A self-cleaning glass was prepared by a sparking process. Specimens were coated with titanium oxide thin films, and were annealed by heating at 500 ${}^{\circ}$C using a laser and a furnace heat treatments. A lifetime span of the samples was tested by a rainfall simulator. Effect of the laser heat treatment for 10 mins was compared with that of a furnace heat treatment for 60 mins. It was...
Ms Porntipa Pooseekheaw (Materials Science Research Center, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, THAILAND 50200)
5/21/15, 1:00 PM
Material Physics, Nanoscale Physics and Nanotechnology
Poster presentation
Titanium dioxide (TiO${}_2$) is a widely used photocatalyst in water splitting process for hydrogen production. In this study, hydrogenation of the titanium dioxide thin films was investigated in order to examine the photocatalytic properties and to improve the performance for photoactivity. Titanium dioxide thin films were prepared by sparking method, then annealed at 500 ${}^{\circ}$C in...
Mr Atipong Bootchanont (School of Physics, Institute of Science, and COE-NANOTEC-SUT on Advanced Functional Nanomaterials, Suranaree University of Technology, Nakhon Ratchasima, THAILAND 30000)
5/21/15, 1:00 PM
Material Physics, Nanoscale Physics and Nanotechnology
Poster presentation
Generally, the medical treatment of osteoporosis was used orally by strontium-base medicine because of its stimulative effect on bone formation. In this work, Hydroxyapatite-based bone (HAp) doped by Sr was investigated for the global structure by X-ray diffraction technique and the local structure by Synchrotron X-ray Absorption Spectroscopy technique. The Sr L$_3$-edge X-ray Absorption...
Mr Phonlakit Khowjalern (Department of Physics, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Rd., Ladgrabang, Bangkok 10520, Thailand)
5/21/15, 1:00 PM
Material Physics, Nanoscale Physics and Nanotechnology
Poster presentation
Magnesium silicide (Mg${}_2$Si) is a promising for thermoelectric materials due to display a high performance for thermoelectric power generation with ZT about 0.9 at operation temperature 600 to 800 K. This work, Mg${}_2$Si compound was prepared from starting powder of SiO${}_2$, which was attracted from rice husk, and Mg powder. The sintering process was performed in quartz tube vacuum at...
Prof. Eric Mazur (Harvard University)
5/21/15, 1:30 PM
Oral presentation
5/22/15, 8:00 AM