Results 31 to 40 of about 197,093 (303)

A Novel Derivation of the Time Evolution of the Entropy for Macroscopic Systems in Thermal Non-Equilibrium

open access: yesEntropy, 2017
The paper discusses how the two thermodynamic properties, energy (U) and exergy (E), can be used to solve the problem of quantifying the entropy of non-equilibrium systems.
Enrico Sciubba, Federico Zullo
doaj   +1 more source

Non-Equilibrium Thermodynamics and Topology of Currents [PDF]

open access: yesJournal of Statistical Physics, 2009
In many experimental situations, a physical system undergoes stochastic evolution which may be described via random maps between two compact spaces. In the current work, we study the applicability of large deviations theory to time-averaged quantities which describe such stochastic maps, in particular time-averaged currents and density functionals.
Vladimir Y. Chernyak   +4 more
openaire   +3 more sources

Exergy Dynamics of Systems in Thermal or Concentration Non-Equilibrium

open access: yesEntropy, 2017
The paper addresses the problem of the existence and quantification of the exergy of non-equilibrium systems. Assuming that both energy and exergy are a priori concepts, the Gibbs “available energy” A is calculated for arbitrary temperature or ...
Enrico Sciubba, Federico Zullo
doaj   +1 more source

Time and thermodynamics extended discussion on “Time & clocks: A thermodynamic approach”

open access: yesResults in Physics, 2020
In the paper, “Time & clocks: A thermodynamic approach” Lucia and Grisolia describe the connections between the physical nature of time and macroscopic irreversibility in thermodynamics.
Atanu Chatterjee, Germano Iannacchione
doaj   +1 more source

Non-equilibrium thermodynamics of concentration polarization [PDF]

open access: yesAdvances in Colloid and Interface Science, 2001
Ultrafiltration is a membrane separation process with many applications, including the treatment of industrial wastes and the processing of milk and juices. Academics are also interested in ultrafiltration as a possible tool for measuring empirical coefficients such as the diffusion coefficient and the permeability.
Peppin, S, Elliott, J
openaire   +4 more sources

Exploring quantum thermodynamics with NMR

open access: yesJournal of Magnetic Resonance Open, 2023
Quantum thermodynamics seeks to extend non-equilibrium stochastic thermodynamics to small quantum systems where non-classical features are essential to its description.
C.H.S. Vieira   +4 more
doaj   +1 more source

Thermodynamics of exponential Kolmogorov–Nagumo averages

open access: yesNew Journal of Physics, 2023
This paper investigates generalized thermodynamic relationships in physical systems where relevant macroscopic variables are determined by the exponential Kolmogorov–Nagumo average.
Pablo A Morales   +2 more
doaj   +1 more source

A zero emission scheme for producing energy from natural gas hydrates and conventional natural gas

open access: yesPetroleum, 2021
The global amount of energy contained in natural gas hydrates is huge, maybe as much as twice all known conventional fossil fuel resources. Unlike the worldwide distribution of conventional fossil fuels, hydrocarbons trapped in water as hydrate is also ...
Bjørn Kvamme, Navid Saeidi
doaj   +1 more source

A Schroedinger link between non-equilibrium thermodynamics and Fisher information

open access: yes, 2002
It is known that equilibrium thermodynamics can be deduced from a constrained Fisher information extemizing process. We show here that, more generally, both non-equilibrium and equilibrium thermodynamics can be obtained from such a Fisher treatment ...
A. Plastino   +25 more
core   +1 more source

Extended irreversible thermodynamics and non-equilibrium temperature

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2008
We briefly review the concept of non-equilibrium temperature from the perspectives of extended irreversible thermodynamics, fluctuation theory, and statistical mechanics. The relations between different proposals are explicitly examined in two especially
Casas-Vazquez, Jose', Jou, David
doaj   +1 more source

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