Results 71 to 80 of about 5,026,485 (166)

Entropy Generation Analysis of Wildfire Propagation

Entropy, 2017
Entropy generation is commonly applied to describe the evolution of irreversible processes, such as heat transfer and turbulence. These are both dominating phenomena in fire propagation.
Elisa Guelpa, Vittorio Verda
doaj   +1 more source

Second Law Analysis of Viscoelastic Fluid over a Stretching Sheet Subject to a Transverse Magnetic Field with Heat and Mass Transfer

Entropy, 2010
This paper concerns the second law analysis of a viscoelastic fluid over a stretching sheet subject to a transverse magnetic field with heat and mass transfer.
Salah Saouli, Soraya Aïboud
doaj   +1 more source

HOLOGRAPHIC BOUND FROM SECOND LAW [PDF]

The Ninth Marcel Grossmann Meeting, 2002
The holographic bound that the entropy (log of number of quantum states) of a system is bounded from above by a quarter of the area of a circumscribing surface measured in Planck areas is widely regarded a desideratum of any fundamental theory, but some exceptions occur. By suitable black hole gedanken experiments I show that the bound follows from the
openaire   +2 more sources

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  

The Second Entropy: A Variational Principle for Time-dependent Systems

Entropy, 2008
The fundamental optimization principle for non-equilibrium thermodynamics is given. The second entropy is introduced as the quantity that is maximised to determine the optimum state of a non-equilibrium system.
Phil Attard
doaj   +1 more source

Pare's Law: The Second Law of Toxicology [PDF]

Toxicological Sciences, 2001
B D, Goldstein, M A, Gallo
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Newton’s Second Law to Go [PDF]

The Physics Teacher, 2019
Students should have a strong conceptual understanding of the connection between force and acceleration before they start working with applications and problem solving. This has been discussed in the literature. During these days of flipped classroom instruction, an at-home activity could be especially valuable.
openaire   +2 more sources

Smoluchowski's Trapdoor

Entropy, 2004
: A mechanism of a gated pore in a membrane is described. Fluxes of gas molecules pass through the pore and produce a pressure gradient in a process that challenges the second law.
Lyndsay G.M. Gordon
doaj   +1 more source

Thermodynamics and Nonlocality in Continuum Physics

Thermo
This paper is devoted to the modelling of nonlocality in continuum physics through constitutive functions that depend on suitable gradients. For definiteness, the attention is addressed to elastic solids, heat conductors, and magnetic solids.
Claudio Giorgi, Angelo Morro
doaj   +1 more source

Trends in the Second Law of Thermodynamics. [PDF]

Entropy (Basel), 2023
Zivieri R.
europepmc   +1 more source