scholarly journals Entropic analysis of bistability and the General Evolution Criterion

2021 ◽  
Author(s):  
David Hochberg ◽  
Josep M. Ribó
Keyword(s):  
Entropy Production ◽  
Entropy Balance ◽  
Open Flow

We present a detailed study of the entropy production, the entropy exchange and the entropy balance for the Schl\"{o}gl model of chemical bi-stability for both the clamped and volumetric open-flow...

Spontaneous mirror symmetry breaking: an entropy production survey of the racemate instability and the emergence of stable scalemic stationary states

2020 ◽  
Vol 22 (25) ◽  
pp. 14013-14025 ◽  
Author(s):  
Josep M. Ribó ◽  
David Hochberg
Keyword(s):  
Symmetry Breaking ◽  
Entropy Production ◽  
Mirror Symmetry ◽  
Flow System ◽  
Stationary States ◽  
Open Flow ◽  
Continuous Range ◽  
Non Equilibrium

Stability of non-equilibrium stationary states and spontaneous mirror symmetry breaking, provoked by the destabilization of the racemic thermodynamic branch, is studied for enantioselective autocatalysis in an open flow system, and for a continuous range n of autocatalytic orders.

Entropy Production and Stress–Deformation Effect on Interdiffusion

2012 ◽  
Vol 323-325 ◽  
pp. 43-48 ◽  
Author(s):  
Marek Danielewski
Keyword(s):  
Entropy Production ◽  
Production Rate ◽  
Reference Frame ◽  
Elastic Deformation ◽  
Irreversible Thermodynamics ◽  
Special Consideration ◽  
Deformation Effect ◽  
Entropy Balance ◽  
Ni Alloys ◽  
Linear Irreversible Thermodynamics

A general, consistent with linear irreversible thermodynamics, theory of stress and elastic deformation during interdiffusion is shown. Special consideration is given to the entropy balance and its production rate during diffusion in Cu-Fe-Ni alloys. The entropy produced during diffusion does not depend on the reference frame and is always positive. The paper spans the gap between the Darken method, linear irreversible thermodynamics and treatments by Stephenson and Svoboda.

scholarly journals ENTROPY BALANCE EQUATION OF SPACE–TIME THERMODYNAMICS IN f(R) GRAVITY

2012 ◽  
Vol 27 (27) ◽  
pp. 1250160 ◽  
Author(s):  
YUKI YOKOKURA
Keyword(s):  
Black Hole ◽  
Entropy Production ◽  
Balance Equation ◽  
Space Time ◽  
Nonequilibrium Processes ◽  
Production Term ◽  
Entropy Balance

We study space–time thermodynamics for nonequilibrium processes. We first generalize the formulation of space–time thermodynamics by using an observer outside the horizon. Then we construct the entropy balance equation of space–time thermodynamics for nonequilibrium processes in f(R) gravity. The coefficients of the expansion and shear terms are equal to the viscosities of the black hole membrane paradigm, and a new entropy production term appears.

scholarly journals ON QUASI-GASDYNAMIC SYSTEM OF EQUATIONS WITH GENERAL EQUATIONS OF STATE AND ITS APPLICATION

2011 ◽  
Vol 16 (4) ◽  
pp. 509-526 ◽  
Author(s):  
Alexander Zlotnik ◽  
Vladimir Gavrilin
Keyword(s):  
Heat Source ◽  
Entropy Production ◽  
Thermodynamic Stability ◽  
Balance Equation ◽  
Equations Of State ◽  
Stability Conditions ◽  
System Of Equations ◽  
Mass Force ◽  
Entropy Balance ◽  
Polytropic Gas

A quasi-gasdynamic system of equations with a mass force and a heat source is well known in the case of the perfect polytropic gas. In the paper, the system is extended to the case of general equations of gas state satisfying thermodynamic stability conditions. The entropy balance equation is studied. The validity of the non-negativity property is algebraically analyzed for the entropy production. Two different forms are derived for its relaxation summands. It is proved that under a condition on the heat source intensity, the non-negativity property is valid.

scholarly journals Chaotic oscillations, dissipation and mirror symmetry breaking in a chiral catalytic network

2020 ◽  
Vol 22 (46) ◽  
pp. 27214-27223 ◽  
Author(s):  
David Hochberg ◽  
Antonio Sánchez Torralba ◽  
Federico Morán
Keyword(s):  
Symmetry Breaking ◽  
Entropy Production ◽  
Mirror Symmetry ◽  
Unit Volume ◽  
Flow Reactor ◽  
Chaotic Regime ◽  
Chaotic Oscillations ◽  
Open Flow ◽  
Catalytic Network

The entropy production per unit volume in the chaotic regime of a chiral hypercycle in an open-flow reactor.

Sign in / Sign up

Export Citation Format

Share Document