Results 41 to 50 of about 310,574 (194)

Estimation of phonon relaxation time for silicon by means of using the velocity autocorrelation function of atoms in molecular dynamics [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2019
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

open access: yesЛëд и снег, 2021
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

open access: yes, 2007
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

open access: yesФізика і хімія твердого тіла
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
doaj   +1 more source

Effect of stress and temperature on the optical properties of silicon nitride membranes at 1550 nm [PDF]

open access: yes, 2018
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

open access: yesWalailak Journal of Science and Technology, 2014
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]

open access: yesApplied Physics Letters, 2019
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)

open access: yes, 2008
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

open access: yesFoods, 2021
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

Thermal spin injection and interface insensitivity in permalloy/aluminum metallic non-local spin valves

open access: yes, 2016
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

Home - About - Disclaimer - Privacy