Results 31 to 40 of about 166,709,915 (273)

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 of Various Entropies in Specific Modified Gravity with Particle Creation

Advances in High Energy Physics, 2018
We consider the particle creation scenario in the dynamical Chern-Simons modified gravity in the presence of perfect fluid equation of state p=(γ-1)ρ. By assuming various modified entropies (Bekenstein entropy logarithmic entropy, power law correction ...
Abdul Jawad, Shamaila Rani, Salman Rafique   +2 more
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

"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

Limits of Landauer’s principle and of the second law of thermodynamics

Entropie
Since 1857, the second law of thermodynamics has faced the challenge of Maxwell’s imagined demon. The widely accepted response to this challenge suggests that the demon requires a bit of information to work, and according to Landauer’s principle ...
Jean Argouarc’h
doaj   +1 more source

Gravitational Entropy and the Second Law of Thermodynamics

Entropy, 2015
The spontaneous violation of Lorentz and diffeomorphism invariance in a phase near the big bang lowers the entropy, allowing for an arrow of time and the second law of thermodynamics. The spontaneous symmetry breaking leads to
John W. Moffat
doaj   +1 more source

Leibniz and the Second Law of Thermodynamics

Teorie vědy
This article is a loose sequel to a previous article Leibniz and the First Law of Thermodynamics (Theory of Science 46(1):89–114, 2024). But this time I analyze in detail the modern debate between Leibniz, Newton, Clarke, and Descartes, anticipating ...
Kateřina Lochmanová
doaj   +1 more source

Heat Transfer and Second Law Analyses for Laminar Film Condensation on a Finite-Size Horizontal Disk

Journal of Thermal Science and Technology, 2007
This study applies the first and second laws of thermodynamics to investigate the problem of steady filmwise condensation on a finite-size horizontal disk.
Tong-Bou CHANG
doaj   +1 more source

On Thermodynamics, Entropy and Evolution of Biological Systems: What Is Life from a Physical Chemist's Viewpoint

Entropy, 1999
: Life in the universe originated and is evolving in accordance with the general laws of nature, specifically, the law of temporal hierarchies and the second law of thermodynamics.
Georgi P. Gladyshev
doaj   +1 more source

Radiant Heat, and the Second Law of Thermodynamics [PDF]

Science, 1883
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openaire   +3 more sources