Results 31 to 40 of about 32,558 (228)

Generalized Clausius inequalities in a nonequilibrium cold-atom system

open access: yesCommunications Physics, 2023
The Clausius inequality is a way of analysing the entropy of a given process and its routes can be found in the second law of thermodynamics. Here, the authors study the non-equilibrium thermodynamics of an ultracold atomic gas in order to confirm the ...
Daniel Mayer, Eric Lutz, Artur Widera
doaj   +1 more source

Maximum one-shot dissipated work from Renyi divergences [PDF]

open access: yes, 2018
Thermodynamics describes large-scale, slowly evolving systems. Two modern approaches generalize thermodynamics: fluctuation theorems, which concern finite-time nonequilibrium processes, and one-shot statistical mechanics, which concerns small scales and ...
Dahlsten, Oscar C. O.   +3 more
core   +3 more sources

Thermodynamics in f(G,T) Gravity

open access: yesAdvances in High Energy Physics, 2018
This paper explores the nonequilibrium behavior of thermodynamics at the apparent horizon of isotropic and homogeneous universe model in f(G,T) gravity (G and T represent the Gauss-Bonnet invariant and trace of the energy-momentum tensor, resp.).
M. Sharif, Ayesha Ikram
doaj   +1 more source

Nonequilibrium thermodynamics of turbulence and stochastic fluid systems

open access: yesNew Journal of Physics, 2020
Fluid systems are found in the Universe at various scales. Turbulence as a complex form of fluid motion far from thermodynamic equilibrium remains one of the most challenging problems in physics.
Wei Wu, Jin Wang
doaj   +1 more source

Accumulation of Particles and Formation of a Dissipative Structure in a Nonequilibrium Bath

open access: yesEntropy, 2022
The standard textbooks contain good explanations of how and why equilibrium thermodynamics emerges in a reservoir with particles that are subjected to Gaussian noise.
Steven Yuvan, Martin Bier
doaj   +1 more source

Mesoscopic non-equilibrium thermodynamics approach to the dynamics of polymers

open access: yes, 2001
We present a general formalism able to derive the kinetic equations of polymer dynamics. It is based on the application of nonequilibrium thermodynamics to analyze the irreversible processes taking place in the conformational space of the macromolecules.
A. Pérez-Madrid   +15 more
core   +1 more source

Nonequilibrium thermodynamics of quantum friction [PDF]

open access: yesPhysical Review A, 2020
Thermodynamic principles are often deceptively simple and yet surprisingly powerful. We show how a simple rule, such as the net flow of energy in and out of a moving atom under nonequilibrium steady state condition, can expose the shortcomings of many popular theories of quantum friction.
D. Reiche   +4 more
openaire   +2 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

Mesoscopic non-equilibrium thermodynamics

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2008
Basic concepts like energy, heat, and temperature have acquired a precise meaning after the development of thermodynamics. Thermodynamics provides the basis for understanding how heat and work are related and with the general rules that the macroscopic ...
Rubi, Jose' Miguel
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

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