Results 41 to 50 of about 233,100 (328)

The Concept of Temperature in the Modern Physics [PDF]

, 2011
The physical quantity "temperature" is a cornerstone of thermodynamics and statistical physics. But it is necessary to mention that very frequently the scientists forget about the conditions to be satisfied in order to introduce "temperature" in ...
Méhauté, Alain Le, Tayurskii, Dmitrii
core   +3 more sources

Non-equilibrium Thermodynamics of Spacetime

, 2006
It has previously been shown that the Einstein equation can be derived from the requirement that the Clausius relation dS = dQ/T hold for all local acceleration horizons through each spacetime point, where dS is one quarter the horizon area change in ...
C. P. Burgess, Christopher Eling, Raf Guedens, S. R. de Groot, Ted Jacobson   +4 more
core   +1 more source

Thermodynamics of the viscous fluid from an observer's viewpoint

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The development of the non-equilibrium thermodynamics of the viscous fluid not using the local thermodynamic equilibrium hypothesis is considered. The theory is based on the causal mechanics of the heat conducting continuum, which includes the 1st law of
Mikhail Yur'evich Belevich
doaj   +1 more source

Thermodynamics in $f(R)$ gravity in the Palatini formalism

, 2010
We investigate thermodynamics of the apparent horizon in $f(R)$ gravity in the Palatini formalism with non-equilibrium and equilibrium descriptions. We demonstrate that it is more transparent to understand the horizon entropy in the equilibrium framework
, , , , A. Sheykhi, A. Sheykhi, A. Silvestri, A. Wang, A.G. Riess ., A.V. Frolov, C. Eling, Chao-Qiang Geng, D. Bak, D.N. Vollick, E. Barausse, E. Barausse, E.E. Flanagan, E.N. Saridakis, F. Caravelli, F.S.N. Lobo, G. Cognola, G.J. Olmo, J.E. Lidsey, K. Bamba, K. Xiao, Kazuharu Bamba, L. Iorio, M. Akbar, M. Sami, M.K. Parikh, M.L. Ruggiero, N. Sakai, R.-G. Cai, R.-G. Cai, S. Capozziello, S. Capozziello, S. Mukohyama, S. Nojiri, S.-F. Wu, S.-F. Wu, S.A. Hayward, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, T. Koivisto, T. Padmanabhan, T. Padmanabhan, T.P. Sotiriou, V. Sahni, W. Buchmüller, WMAP collaboration, WMAP collaboration, WMAP collaboration, WMAP collaboration, Y. Gong, Y.S. Myung   +54 more
core   +1 more source

The interplay between thermodynamics and kinetics in the solid-state synthesis of layered oxides. [PDF]

, 2020
In the synthesis of inorganic materials, reactions often yield non-equilibrium kinetic byproducts instead of the thermodynamic equilibrium phase. Understanding the competition between thermodynamics and kinetics is a fundamental step towards the rational
Bai, Jianming, Bianchini, Matteo, Ceder, Gerbrand, Clément, Raphaële J, Kim, Haegyeom, Kitchaev, Daniil, Ouyang, Bin, Shi, Tan, Sun, Wenhao, Wang, Feng, Wang, Jingyang, Wang, Yan, Xiao, Penghao, Zhang, Mingjian, Zhang, Yaqian   +14 more
core  

Dissipation in non-equilibrium spacetime thermodynamics

Journal of Physics: Conference Series, 2010
It has been recently realized [1, 2] that the thermodynamical derivation of the Einstein equation introduced by Jacobson [3] needs a generalization to a non-equilibrium thermodynamical setting. Here we show that the non-equilibrium character of spacetime thermodynamics – both in GR as well as in f(R) gravity – is generally related to non-local heat ...
Chirco G, Liberati, Stefano
openaire   +4 more sources

Braun-Le Chatelier principle in dissipative thermodynamics

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
Braun-Le Chatelier principle is a fundamental result of equilibrium thermodynamics, showing how stable equilibrium states shift when external conditions are varied. The principle follows from convexity of a thermodynamic potential.
Michal Pavelka, Miroslav Grmela
doaj   +1 more source

Towards Control by Interconnection of Port-Thermodynamic Systems [PDF]

arXiv, 2021
The power conserving interconnection of port-thermodynamic systems via their power ports results in another port-thermodynamic system, while the same holds for the rate of entropy increasing interconnection via their entropy flow ports. Control by interconnection of port-thermodynamic systems seeks to control a plant port-thermodynamic system by the ...
arxiv  

Thermodynamics of cosmological horizons in $f(T)$ gravity

, 2011
We explore thermodynamics of the apparent horizon in $f(T)$ gravity with both equilibrium and non-equilibrium descriptions. We find the same dual equilibrium/non-equilibrium formulation for $f(T)$ as for $f(R)$ gravity.
, A. De Felice, A. Einstein, C. Deliduman, C.-Q. Geng, C.G. Boehmer, C.Q. Geng, Chao-Qiang Geng, D. Bak, G. Cognola, H. Mohseni Sadjadi, H. Wei, H. Wei, J. Garecki, J.B. Dent, J.E. Lidsey, K. Bamba, K. Bamba, K. Bamba, K. Bamba, K. Karami, K. Yerzhanov, Kazuharu Bamba, L. Belo, M. Daouda, M. Daouda, M. Li, N. Sakai, P. Gonzalez, P.B. Khatua, R. Myrzakulov, R. Zheng, R.-G. Cai, R.-G. Cai, R.-J. Yang, R.-J. Yang, R.-X. Miao, R.-X. Miao, S.-F. Wu, S.A. Hayward, SDSS collaboration, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, T. Clifton, T. Padmanabhan, T. Padmanabhan, WMAP collaboration, WMAP collaboration, WMAP collaboration, WMAP collaboration, Y. Gong, Y. Yokokura, Y. Zhang, Y.-F. Cai, Y.-P. Wu   +54 more
core   +1 more source

Non-equilibrium thermodynamics of gravitational screens [PDF]

Classical and Quantum Gravity, 2015
We study the Einstein gravity equations projected on a timelike surface, which represents the time evolution of what we call a gravitational screen. We show that such a screen behaves like a viscous bubble with a surface tension and an internal energy, and that the Einstein equations take the same forms as non-equilibrium thermodynamic equations for a ...
Yuki Yokokura, Laurent Freidel
openaire   +4 more sources