Estimation of phonon relaxation time for silicon by means of using the velocity autocorrelation function of atoms in molecular dynamics [PDF]
Results of the ab initio molecular dynamics calculations of silicon crystals are presented by means of analysis of the velocity autocorrelation function and determination of mean phonon relaxation time.
B. Andriyevsky +6 more
doaj +1 more source
Estimation of the thermal resistance of snow cover based on the ground temperature
Climate changes have influence on the thermal stability of permafrost soils. The assessment of its changes should be made taking account of the parameters of the snow cover and its thermophysical characteristics.
V. M. Kotlyakov, A. V. Sosnovsky
doaj +1 more source
Ohm's Law at strong coupling: S duality and the cyclotron resonance
We calculate the electrical and thermal conductivities and the thermoelectric coefficient of a class of strongly interacting 2+1 dimensional conformal field theories with anti-de Sitter space duals. We obtain these transport coefficients as a function of
Hartnoll, Sean A. +1 more
core +1 more source
Analytical method for determining the temperature dependence of the thermal conductivity coefficient
The paper developed an analytical method for determining the temperature dependence of the thermal conductivity coefficient, which is based on the approximation of the temperature field obtained using an infrared thermal imaging camera by the solution of
Ya.P. Saliy, B.S. Dzundza
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Effect of stress and temperature on the optical properties of silicon nitride membranes at 1550 nm [PDF]
Future gravitational-wave detectors operated at cryogenic temperatures are expected to be limited by thermal noise of the highly reflective mirror coatings. Silicon nitride is an interesting material for such coatings as it shows very low mechanical loss,
Angus S. Bell +8 more
core +2 more sources
Optimization of a Novel Composite Cathode for Intermediate Temperature SOFCs Applications
Ba0.95FeY0.05O2.81 was prepared by solid state reaction method to study its structure, conductivity and thermal expansion coefficients. X-ray powder diffraction at elevated temperatures showed the pure phase at 100 - 600 °C, then the phase changed at 700
Montri SUKLUENG +3 more
doaj +1 more source
Thermal expansion coefficients of high thermal conducting BAs and BP materials [PDF]
Recently reported very high thermal conductivities in cubic boron arsenide (BAs) and boron phosphide (BP) crystals could potentially provide a revolutionary solution in the thermal management of high power density devices. To fully facilitate such an application, the compatible coefficient of thermal expansion (CTE) between the heat spreader and the ...
Sheng Li +8 more
openaire +2 more sources
Electron Correlations in the Low Carrier Density LaFeAsO0.89F0.11 Superconductor (Tc = 28 K)
The crystal structure and numerous normal and superconducting state properties of layered tetragonal (P4/nmm) LaFeAsO, with F-doping of 11 %, are reported.
Athena S. Sefat +9 more
core +1 more source
Dynamic Thermal Properties Estimation Using Sensitivity Coefficients for Rapid Heating Process
Thermal conductivity determination of food at temperatures > 100 °C still remains a challenge. The objective of this study was to determine the temperature-dependent thermal conductivity of food using rapid heating (TPCell). The experiments were designed
Anbuhkani Muniandy +3 more
doaj +1 more source
We present measurements of thermal and electrical spin injection in nanoscale metallic non-local spin valve (NLSV) structures. Informed by measurements of the Seebeck coefficient and thermal conductivity of representative films made using a micromachined
Hojem, Alex +2 more
core +1 more source

