Results 11 to 20 of about 2,868,544 (341)

Thermal Conductivity of Rocks [PDF]

open access: yesNature, 1895
IN view of recent discussions in NATURE anent the variation of the thermal conductivity of different kinds of rock with the temperature, the following results of an investigation, which has been in progress for the last year in the Jefferson Physical Laboratory, may be of interest.
Pierce, B. O., Willson, R. W.
openaire   +2 more sources

Towards Optimizing Width Modulation for Maximum Thermoelectric Efficiency

open access: yesMicromachines, 2023
Maximizing thermoelectric efficiency is typically addressed as identical to minimizing parasitic thermal conduction. Such an approach relies on the assumption that the adopted strategy mainly affects phonons, leaving electrons intact, and is not ...
Antonios-Dimitrios Stefanou   +1 more
doaj   +1 more source

Efficient analysis of welding thermal conduction using the Newton–Raphson method, implicit method, and their combination

open access: yesThe International Journal of Advanced Manufacturing Technology, 2020
Finite element analysis is commonly used to investigate the thermal-mechanical phenomena during welding. To improve the computing efficiency of finite element analysis for welding thermal conduction, a novel Newton–Raphson method (NRM) without the ...
Zhongyuan Feng   +4 more
semanticscholar   +1 more source

Thermal Conductivity of Copper [PDF]

open access: yesPhysical Review (Series I), 1895
n ...
Quick, R. W.   +2 more
openaire   +3 more sources

A Numerical Study of Small-Scale Longitudinal Heat Conduction in Plate Heat Exchangers

open access: yesEnergies, 2018
Longitudinal heat conduction has a significant effect on the heat transfer performance of plate heat exchangers, but longitudinal heat conduction is usually neglected in numerical studies and the thermal design of a heat exchanger.
Saranmanduh Borjigin   +3 more
doaj   +1 more source

Thermal conductivity of comets [PDF]

open access: yes13th Aerospace Sciences Meeting, 1975
A value is described for the thermal conductivity of the frost layer and for the water-ice solid debris mixture. The value of the porous structure is discussed as a function of depth only. Graphs show thermal conductivity as a function of depth and temperature at constant porosity and density.
M. S. Khader, R. I. Vachon, G. N. Kumar
openaire   +3 more sources

Heat Conduction in Porous Media Characterized by Fractal Geometry

open access: yesEnergies, 2017
Fractal geometry (fractional Brownian motion—FBM) is introduced to characterize the pore distribution of porous material. Based on this fractal characterization, a mathematical model of heat conduction is presented to study heat conduction behaviors in ...
Zilong Deng   +4 more
doaj   +1 more source

Enhancing The Extremely High Thermal Conduction of Graphene Nanoribbons

open access: yesFrontiers in Physics, 2013
Graphene and Graphene nanoribbons (GNRs) are found to have superior high thermal conductivity favorable for high-performance heat dissipation. In this letter, by using molecular dynamics simulations, we show that constructing specific structure can ...
Xiuqiang eLi, Gang eZhang
doaj   +1 more source

Nonlinear Heat Radiation Induces Thermal Rectifier in Asymmetric Holey Composites

open access: yesFrontiers in Energy Research, 2018
Asymmetric design and nonlinearity are essential to give rise to thermal rectification. In addition to the linear Fourier’s law of thermal conduction, we introduce the nonlinear thermal radiation following Stefan–Boltzmann law to asymmetric holey ...
Weiwei Zhu   +3 more
doaj   +1 more source

Contactless Interface Using Exhaled Breath and Thermal Imaging

open access: yesSensors, 2023
A new type of interface using a conduction hot spot reflecting the user’s intention is presented. Conventional methods using fingertips to generate conduction hot points cannot be applied to those who have difficulty using their hands or cold hands.
Kanghoon Lee, Jong-Il Park
doaj   +1 more source

Home - About - Disclaimer - Privacy