Results 21 to 30 of about 169,010 (181)

Bluff Your Way in the Second Law of Thermodynamics [PDF]

, 2001
The aim of this article is to analyze the relation between the second law of thermodynamics and the so-called arrow of time. For this purpose, a number of different aspects in this arrow of time are distinguished, in particular those of time-(a)symmetry ...
Jos Uffink
openalex   +8 more sources

Variable-Speed-of-Light Cosmology and Second Law of Thermodynamics [PDF]

, 2002
We examine whether the cosmologies with varying speed of light (VSL) are compatible with the second law of thermodynamics. We find that the VSL cosmology with varying fundamental constant is severely constrained by the second law of thermodynamics ...
A. Albrecht, A. Albrecht, A. D. Linde, A. H. Guth, B. A. Bassett, C. Csaki, C. P. Burgess, D. J. Chung, D. J. Chungs, Donam Youm, E. Kiritsis, G. Kalbermann, H. Ishihara, J. D. Barrow, J. D. Barrow, J. D. Barrow, J. D. Barrow, J. K. Webb, J. K. Webb, J. W. Moffat, L. P. Chimento, M. A. Clayton, M. A. Clayton, M. A. Clayton, M. A. Clayton, M. T. Murphy, R. Brustein, R. Easther, S. H. Alexander   +28 more
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Law Behind Second Law of Thermodynamics --Unification with Cosmology-- [PDF]

, 2006
In an abstract setting of a general classical mechanical system as a model for the universe we set up a general formalism for a law behind the second law of thermodynamics, i.e. really for "initial conditions".
, , , (1851-1854, C.W. Misner, E. . Mankoc Borstnik, H.B. Nielsen, H.B. Nielsen, H.B. Nielsen, H.B. Nielsen, H.B. Nielsen, H.B. Nielsen, Holger B Nielsen, J.B. Hartle, L. Boltzmann, Masao Ninomiya, R. Arnowitt, R. Clausius, R. Clausius, R. Clausius, R. Clausius, S. Carnot, see, see, W. Thomas   +24 more
core   +1 more source

Radiation Entropy Bound from the Second Law of Thermodynamics

Entropy, 2012
It has been suggested heuristically by Unruh and Wald, and independently by Page, that at given energy and volume, thermal radiation has the largest entropy. The suggestion leads to the corresponding universal bound on entropy of physical systems.
Itzhak Fouxon
doaj   +1 more source

Thermodynamics in modified Brans–Dicke gravity with entropy corrections

European Physical Journal C: Particles and Fields, 2018
In this paper, we investigate the thermodynamics in the frame-work of recently proposed theory called modified Brans–Dicke gravity (Kofinas et al. in Class Quantum Gravity 33:15, 2016).
Shamaila Rani, Abdul Jawad, Tanzeela Nawaz, Rubab Manzoor   +3 more
doaj   +1 more source

Generalized Second Law of Thermodynamics in Quintom Dominated Universe [PDF]

, 2006
In this paper we will investigate the validity of the Generalized Second Law of thermodynamics for the Quintom model of dark energy. Reviewing briefly the quintom scenario of dark energy, we will study the conditions of validity of the generalized second
Armendariz-Picon, Armendariz-Picon, Bekenstein, Bouhmadi-Lopez, Caldwell, Caldwell, Caldwell, Capozziello, Carroll, Chiba, Chimento, Dabrowski, Daly, Davies, Davies, Davies, Faraoni, Feng, Feng, Feng, Garnavich, Gibbons, Gonzalez-Diaz, Gonzalez-Diaz, Gunzig, Guo, Guo, Hannestad, John, Johri, Li, Lima, M.R. Setare, Meng, Mohseni Sajadi, Nesserisand, Nojiri, Nojiri, Nojiri, Nojiri, Nojiri, Onemli, Perlmutter, Ratra, Riess, Sami, Schulz, Singh, Steinhardt, Szydlowski, Torres, Vikman, Wang, Wang, Wei, Wei, Wetterich, Xia, Xia, Xia, Zhao, Zhao, Zlatev   +62 more
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"A calorie is a calorie" violates the second law of thermodynamics

Nutrition Journal, 2004
The principle of "a calorie is a calorie," that weight change in hypocaloric diets is independent of macronutrient composition, is widely held in the popular and technical literature, and is frequently justified by appeal to the laws of thermodynamics ...
Fine Eugene J, Feinman Richard D
doaj   +1 more source

Helping Pregraduate Students Reach Deep Understanding of the Second Law of Thermodynamics

Education Sciences, 2021
Pregraduate students often have low success expectations toward their thermodynamics courses, which are often considered too abstract and remarkably difficult to understand. For this reason, they may not even try to reach any level of comprehension while
Lorena Atarés, M. Jose Canet, Macarena Trujillo, José Vte. Benlloch-Dualde, Javier Paricio Royo, Amparo Fernandez-March   +5 more
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The generalized second law in irreversible thermodynamics for the interacting dark energy in a non-flat FRW universe enclosed by the apparent horizon [PDF]

, 2010
We investigate the validity of the generalized second law in irreversible thermodynamics in a non-flat FRW universe containing the interacting dark energy with cold dark matter.
Abdalla, Akbar, Amendola, Amendola, Anisimov, Arkani-Hamed, Armendáriz-Picón, Armendáriz-Picón, Armendáriz-Picón, Bardeen, Bennett, Bento, Bertolami, Bertolami, Cai, Cai, Cai, Caldera-Cabral, Caldwell, Chiba, Cohen, Copeland, Das, Davies, de Bernardis, Deffayet, Elizalde, Feng, Garriga, Gasperini, Gong, Gong, Guo, Hawking, Horava, Hu, Huang, Izquierdo, Izquierdo, Jacobson, K. Karami, Kamenshchik, Karami, Karami, Karami, Karami, Karami, Karami, Kim, Kim, Kim, Li, Mohseni Sadjadi, Neupane, Nojiri, Nojiri, Nojiri, Padmanabhan, Padmanabhan, Pavon, Pavón, Perlmutter, Perlmutter, Piazza, Ratra, Riess, S. Ghaffari, Sahni, Seljak, Sen, Sheykhi, Sheykhi, Sheykhi, Sheykhi, Sheykhi, Sheykhi, Sheykhi, Spergel, Spergel, Szydlowski, Tegmark, Thomas, Tsujikawa, Tsujikawa, Wang, Wang, Wang, Wang, Wang, Wei, Wei, Wei, Weinberg, Wetterich, Wu, Zhang, Zhou, Zhou   +97 more
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The Holographic Model of Dark Energy and Thermodynamics of Non-Flat Accelerated Expanding Universe [PDF]

, 2006
Motivated by recent results on non-vanishing spatial curvature \cite{curve} we employ the holographic model of dark energy to investigate the validity of first and second laws of thermodynamics in non-flat (closed) universe enclosed by apparent horizon ...
Almeida J P B Pereira J G, Chiba T, Davies P C, Davies P C W, Easther R Lowe D A, Enqvist K, Fischler W Susskind L, Gong Y, Gonzalez-Diaz P F, Huang Q, Huang Q G, Huang Q G, Huang Q G, Ichikawa K, Kratochvil J, Li H Guo Z K Zhang Y Z, M R Setare, Nojiri S, Nojiri S Odintsov S D, Pavon D Zimdahl W, S Shafei, Vollic D N, Wang B Gong Y Abdalla E, Wang Y Tegmark M   +23 more
core   +3 more sources