Results 31 to 40 of about 120,992 (291)

Numerical Investigation of Periodic Fluctuations in Energy Efficiency in Centrifugal Pumps at Different Working Points

open access: yesEnergies, 2017
In order to simulate the energy efficiency fluctuation behavior of an industrial centrifugal pump with a six-blade impeller, a full-scale three-dimensional (3D) an unsteady state computational fluid dynamics (CFD) model was used.
Hehui Zhang, Shengxiang Deng, Yingjie Qu
doaj   +1 more source

Quantum work statistics close to equilibrium

open access: yesPhysical Review Research, 2020
We study the statistics of work, dissipation, and entropy production of a quantum quasi-isothermal process, where the system remains close to thermal equilibrium along the transformation.
Matteo Scandi   +3 more
doaj   +1 more source

Fluctuation theorems for harmonic oscillators [PDF]

open access: yes, 2007
We study experimentally the thermal fluctuations of energy input and dissipation in a harmonic oscillator driven out of equilibrium, and search for Fluctuation Relations.
Garnier, Nicolas   +2 more
core   +1 more source

Green function approach to mass fluctuation waves [PDF]

open access: yes, 1972
In earlier work, a model Hamiltonian has been used to study in detail the effects of 4He impurities in solid 3He. Starting with this Hamiltonian we use the Green function method, with a suitable decoupling scheme, to study the "mass fluctuation" waves ...
Balakrishnan, Radha, Balakrishnan, V.
core   +1 more source

The steady state fluctuation relation for the dissipation function [PDF]

open access: yes, 2007
We give a proof of transient fluctuation relations for the entropy production (dissipation function) in nonequilibrium systems, which is valid for most time reversible dynamics. We then consider the conditions under which a transient fluctuation relation
EVANS D. J.   +2 more
core   +1 more source

The Effect of Thermal Fluctuation on the Receptor-Mediated Adhesion of a Cell Membrane to an Elastic Substrate

open access: yesMembranes, 2017
Mechanics of the bilayer membrane play an important role in many biological and bioengineering problems such as cell–substrate and cell–nanomaterial interactions.
Bahador Marzban, Hongyan Yuan
doaj   +1 more source

QCD critical end point and baryon number fluctuation

open access: yesHe jishu, 2023
One of the main goals of relativistic heavy-ion collision (HIC) is to search for the critical end point (CEP) of quantum chromodynamics (QCD), and distribution of the net-proton number from experimental measurements shows non-monotonic behavior, which ...
XU Kun, HUANG Mei
doaj   +1 more source

The distribution of work performed on a NIS junction

open access: yesNew Journal of Physics, 2016
We propose an experimental setup to measure the work performed in a normal-metal/insulator/superconducting (NIS) junction, subjected to a voltage change and in contact with a thermal bath.
Jaime E Santos   +2 more
doaj   +1 more source

Probabilistic Modeling for Cementitious Materials Based on Data of Nanoindentation

open access: yesBuildings, 2023
By introducing probabilistic modeling approaches, the interface transition zone (ITZ) and the bulk paste (BP) of concrete are investigated on the basis of the nanoindentation results, especially with respect to the relationship between the microstructure
Hankun Liu   +4 more
doaj   +1 more source

FLUCTUATION-DISSIPATION CORRELATION OF THE SIGNAL OF STARS OF THE FS CMA TYPE

open access: yesEurasian Physical Technical Journal
Due to the importance of stellar evolution, new theories and approaches to the study of stars are constantly being developed. This study presents novel results obtained through the application of the fluctuation-dissipation theorem.
Z.Zh. Zhanabaev   +3 more
doaj   +1 more source

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