Results 51 to 60 of about 5,026,485 (166)

Thomson's formulation of the second law for macroscopic and finite work sources

open access: yesEntropy, 2004
: Thomson's formulation of the second law states: no work can be extracted from an equilibrium system through a cyclic process. A simple, general proof is presented for the case of macroscopic sources of work.
Theo M. Nieuwenhuizen   +2 more
doaj   +1 more source

A Collision Between Dynamics and Thermodynamics

open access: yesEntropy, 2004
: Philosophers of science have found the literature surrounding Maxwell's demon deeply problematic. This paper explains why, summarizing various philosophical complaints and adding to them.
Craig Callender
doaj   +1 more source

Relic gravitational waves and the generalized second law

open access: yes, 2005
The generalized second law of gravitational thermodynamics is applied to the present era of accelerated expansion of the Universe. In spite of the fact that the entropy of matter and relic gravitational waves inside the event horizon diminish, the ...
Izquierdo, German, Pavon, Diego
core   +1 more source

Influence of Droplet Size on Exergy Destruction in Flow of Concentrated Non-Newtonian Emulsions

open access: yesEnergies, 2016
The influence of droplet size on exergy destruction rate in flow of highly concentrated oil-in-water emulsions was investigated experimentally in a cone and plate geometry. The oil concentration was fixed at 74.5% by volume. At this dispersed-phase (oil)
Rajinder Pal
doaj   +1 more source

Reformulating the Second Law

open access: yesScientonomy, 2017
The current formulation of the second law is flawed since it does not specify the causal relations between the outcomes of theory assessment and the actual acceptance/unacceptance of a theory; it merely tells us that a theory was assessed by the method ...
Paul Patton   +2 more
doaj   +1 more source

The Decrease in Entropy via Fluctuations

open access: yesEntropy, 2004
: Classical and quantum aspects of fluctuations are reviewed in a discussion on the universality of the second law. Consideration is given to the need of information and the requirement of a ratchet and pawl-type mechanism for the utilization of energy ...
Lyndsay G.M. Gordon
doaj   +1 more source

The Second-Person Standpoint in Law and Morality [PDF]

open access: yes, 2014
The papers of this special issue are the outcome of a two-­‐day conference entitled “The Second-­‐Person Standpoint in Law and Morality,” that took place at the University of Vienna in March 2013 and was organized by the ERC Advanced Research Grant ...
Pauer-Studer, Herlinde
core  

Quantum Collapse and the Second Law of Thermodynamics

open access: yes, 2012
A heat engine undergoes a cyclic operation while in equilibrium with the net result of conversion of heat into work. Quantum effects such as superposition of states can improve an engine's efficiency by breaking detailed balance, but this improvement ...
A. N. Kolmogorov   +2 more
core   +1 more source

On the Second Law of Thermodynamics in Continuum Physics

open access: yesThermo
The paper revisits the formulation of the second law in continuum physics and investigates new methods of exploitation. Both the entropy flux and the entropy production are taken to be expressed by constitutive equations.
Claudio Giorgi, Angelo Morro
doaj   +1 more source

Calculation of Configurational Entropy in Complex Landscapes

open access: yesEntropy, 2018
Entropy and the second law of thermodynamics are fundamental concepts that underlie all natural processes and patterns. Recent research has shown how the entropy of a landscape mosaic can be calculated using the Boltzmann equation, with the entropy of a ...
Samuel A Cushman
doaj   +1 more source

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