Results 81 to 90 of about 2,865,644 (194)

Toward Improved Understanding of the Physical Meaning of Entropy in Classical Thermodynamics

Entropy, 2016
The year 2015 marked the 150th anniversary of “entropy” as a concept in classical thermodynamics. Despite its central role in the mathematical formulation of the Second Law and most of classical thermodynamics, its physical meaning continues to be ...
Ben Akih-Kumgeh
doaj   +1 more source

The Casimir Effect and Thermodynamic Instability [PDF]

arXiv, 1998
One loop field theory calculations of free energies quite often yield violations of the stability conditions associated with the thermodynamic second law. Perhaps the best known example involves the equation of state of black holes. Here, it is pointed out that the Casimir force between two parallel conducting plates also violates a thermodynamic ...
arxiv  

New thought experiment to test the generalized second law of thermodynamics

, 2005
We propose an extension of the original thought experiment proposed by Geroch, which sparked much of the actual debate and interest on black hole thermodynamics, and show that the generalized second law of thermodynamics is in compliance with it.Comment:
André R. Rocha da Silva, George E. A. Matsas, M. A. Abramowicz, R. C. Tolman, R. M. Wald, R. M. Wald, R. M. Wald, S. W. Hawking, S. W. Hawking   +8 more
core   +1 more source

Entropy Oriented Trading: A Trading Strategy Based on the Second Law of Thermodynamics [PDF]

arXiv, 2007
The author proposes a finance trading strategy named Entropy Oriented Trading and apply thermodynamics on the strategy. The state variables are chosen so that the strategy satisfies the second law of thermodynamics. Using the law, the author proves that the rate of investment (ROI) of the strategy is equal to or more than the rate of price change.
arxiv  

Measuring the Entropy and Testing the Second Law of Thermodynamics [PDF]

arXiv, 2002
Evidence implies that basic laws of thermodynamics must be tested by experiments. In this paper, an experiment is designed to measure the entropy of a system with at least one known (measurable) equation of state, especially the gas systems. Since the entropy can be measured now, the formulae related to the second law of thermodynamics can be examined ...
arxiv  

Universal validity of the second law of information thermodynamics

npj Quantum Information
Adiabatic measurements, followed by feedback and erasure protocols, have often been considered as a model to embody Maxwell’s Demon paradox and to study the interplay between thermodynamics and information processing.
Shintaro Minagawa, M. Hamed Mohammady, Kenta Sakai, Kohtaro Kato, Francesco Buscemi   +4 more
doaj   +1 more source

Antimatter and the second law of thermodynamics

, 2018
In this letter we make a proposal that the second law of thermodynamics holds true for a closed physical system consisting of pure antimatter in the thermodynamical limit, but in a reversed form. We give two plausible arguments in favour to this proposal:
Etesi, Gabor
core  

First and second law analysis applied to building envelope: A theoretical approach on the potentiality of Bejan’s theory

Energy Reports, 2015
Especially in the last decade, efforts have been made in developing the sustainable building assessment tools, which are usually performed based on fundamentals of the First Law of Thermodynamics.
Cesare Biserni, Massimo Garai
doaj   +1 more source

Reasoning and Logical Proofs of the Fundamental Laws: "No Hope" for the Challengers of the Second Law of Thermodynamics. [PDF]

Entropy (Basel), 2023
Kostic M.
europepmc   +1 more source

Thermodynamics in Higher Dimensional Vaidya Space-Time [PDF]

arXiv, 2012
In this work, we have considered the Vaidya spacetime in null radiating fluid with perfect fluid in higher dimension and have found the solution for barotropic fluid. We have shown that the Einstein's field equations can be obtained from Unified first law i.e., field equations and unified first law are equivalent.
arxiv