Results 31 to 40 of about 313,235 (301)

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

On Thermodynamics Problems in the Single-Phase-Lagging Heat Conduction Model

Entropy, 2016
Thermodynamics problems for the single-phase-lagging (SPL) model have not been much studied. In this paper, the violation of the second law of thermodynamics by the SPL model is studied from two perspectives, which are the negative entropy production ...
Shu-Nan Li, Bing-Yang Cao
doaj   +1 more source

Thermodynamics and Rate Thermodynamics [PDF]

arXiv, 2023
Approach of mesoscopic state variables to time independent equilibrium sates (zero law of thermodynamics) gives birth to the classical equilibrium thermodynamics. Approach of fluxes and forces to fixed points (equilibrium fluxes and forces) that drive reduced mesoscopic dynamics gives birth to the rate thermodynamics that is applicable to driven ...
arxiv  

The Second Law Today: Using Maximum-Minimum Entropy Generation

Entropy, 2015
There are a great number of thermodynamic schools, independent of each other, and without a powerful general approach, but with a split on non-equilibrium thermodynamics. In 1912, in relation to the stationary non-equilibrium states, Ehrenfest introduced
Umberto Lucia, Giuseppe Grazzini
doaj   +1 more source

Time and Thermodynamics Extended Discussion on "Time & clocks: A thermodynamic approach" [PDF]

Results in Physics, Volume 17, June 2020, 103165, 2020
In the paper, "Time & clocks: A thermodynamic approach" Lucia and Grisolia describe the connections between the physical nature of time and macroscopic irreversibility in thermodynamics. They also discuss the possibility of constructing a thermodynamic clock that links the two, through an approach based on the behaviour of a black body.
arxiv   +1 more source

Entropy Principle and Recent Results in Non-Equilibrium Theories

Entropy, 2014
We present the state of the art on the modern mathematical methods of exploiting the entropy principle in thermomechanics of continuous media. A survey of recent results and conceptual discussions of this topic in some well-known non-equilibrium theories
Vito Antonio Cimmelli, David Jou, Tommaso Ruggeri, Péter Ván   +3 more
doaj   +1 more source

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

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
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Entropy and Entropy Production in Multiscale Dynamics

, 2018
Heat conduction is investigated on three levels: equilibrium, Fourier, and Cattaneo. The Fourier level is either the point of departure for investigating the approach to equilibrium or the final stage in the investigation of the approach from the ...
Bendian, Nie, Cao, Bing-Yang, Grmela, Miroslav, Klika, Vaclav, Pavelka, Michal   +4 more
core   +1 more source

Brownian Motors driven by Particle Exchange

, 1997
We extend the Langevin dynamics so that particles can be exchanged with a particle reservoir. We show that grand canonical ensembles are realized at equilibrium and derive the relations of thermodynamics for processes between equilibrium states.
Adams D. J., Astumian R. D., Astumian R. D., Astumian R. D., Feynmann R. P., Hoover W. G., Magnasco M. O., Magnasco M. O., Nosé S., Prost J., Sekimoto K., Sekimoto K., Van Kampen N. G., Zhou H. X., Çagin T.   +14 more
core   +1 more source