Results 41 to 50 of about 6,301,476 (296)

Calculation of the Entropy Balance Equation in a Non-equilibrium Reaction-diffusion System

open access: yesEntropy, 2010
In this article, we discuss the relationships between thermodynamic quantities and the spatial pattern in a reaction-diffusion model based on the reversible Gray-Scott model.
Tomohiko Yamaguchi, Hitoshi Mahara
doaj   +1 more source

Entropy production of nonreciprocal interactions

open access: yesPhysical Review Research, 2023
Nonreciprocal interactions are present in many systems out of equilibrium. The rate of entropy production is a measure that quantifies the time irreversibility of a system, and thus how far it is from equilibrium.
Ziluo Zhang (张子洛)   +1 more
doaj   +1 more source

Entropy Production in the Inflationary Universe [PDF]

open access: yesProgress of Theoretical Physics, 1984
Summary: We consider the entropy mechanism during the vacuum energy dominated stage of the inflationary universe. We propose a thermalization mechanism of vacuum energy due to Higgs particles produced by the temporal change of the background classical Higgs field which subsequently decay into other particles. Then the dissipation coefficient associated
Morikawa, Masahiro, Sasaki, Misao
openaire   +2 more sources

Statistics of Infima and Stopping Times of Entropy Production and Applications to Active Molecular Processes

open access: yesPhysical Review X, 2017
We study the statistics of infima, stopping times, and passage probabilities of entropy production in nonequilibrium steady states, and we show that they are universal. We consider two examples of stopping times: first-passage times of entropy production
Izaak Neri   +2 more
doaj   +1 more source

Entropy Production of Main-Sequence Stars

open access: yesEntropy, 2015
The entropy production (inside the volume bounded by a photosphere) of main-sequence stars is calculated based on B–V photometry data. The entropy-production distribution function and the dependences of entropy production on temperature and luminosity ...
Leonid M. Martyushev, Sergey N. Zubarev
doaj   +1 more source

Numerical investigation of entropy generation of turbulent flow in twisted tri-lobed tubes

open access: yesCase Studies in Thermal Engineering, 2023
Twisted tri-lobed tubes have garnered attention due to their exceptional heat transfer efficiency and straightforward fabrication. Existing literature lacks comprehensive assessments of the overall heat transfer performance of twisted tri-lobed tubes ...
Kexin Liu   +5 more
doaj   +1 more source

Bacterial chemotaxis and entropy production [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2010
Entropy production is calculated for bacterial chemotaxis in the case of a migrating band of bacteria in a capillary tube. It is found that the speed of the migrating band is a decreasing function of the starting concentration of the metabolizable attractant.
Juretić, Davor   +3 more
openaire   +6 more sources

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye   +33 more
wiley   +1 more source

Microgravity Spherical Droplet Evaporation and Entropy Effects

open access: yes, 2023
Recent efforts to understand low-temperature combustion (LTC) in internal combustion engines highlight the need to improve chemical kinetic mechanisms involved in the negative temperature coefficient (aka cool flame) regime.
Depcik, Christopher
core   +1 more source

Wigner Entropy Production Rate [PDF]

open access: yesPhysical Review Letters, 2017
The characterization of irreversibility in general quantum processes is an open problem of increasing technological relevance. Yet, the tools currently available to this aim are mostly limited to the assessment of dynamics induced by equilibrium environments, a situation that often does not match the reality of experiments at the microscopic and ...
Santos, Jader P.   +2 more
openaire   +3 more sources

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