Results 21 to 30 of about 554,369 (294)

Single-Layer Phase Screen With Pointing Errors for Free Space Optical Communication

open access: yesIEEE Access, 2021
Single-layer phase screen is a classical, simple and accurate approach for simulating the optical field under turbulence, and it is generally used in free space optical communication (FSOC).
Xin Liu   +4 more
doaj   +1 more source

Stochastic resonance of fractional-order Langevin equation driven by periodic modulated noise with mass fluctuation

open access: yesAdvances in Difference Equations, 2020
The stochastic resonance (SR) of a second-order harmonic oscillator subject to mass fluctuation and periodic modulated noise in viscous media is studied.
Shan Yang, Mou Deng, Ruibin Ren
doaj   +1 more source

Collective Behaviors of Star-Coupled Harmonic Oscillators with Fluctuating Frequency in the Presence of Stochastic Resonance

open access: yesFractal and Fractional, 2022
The stochastic resonance (SR) of a star-coupled harmonic oscillator subject to multiplicative fluctuation and periodic force in viscous media is studied.
Ruibin Ren, George X. Yuan
doaj   +1 more source

Superfluid density, Josephson relation and pairing fluctuations in a multi-component fermion superfluid

open access: yesScientific Reports, 2021
In this work, a Josephson relation is generalized to a multi-component fermion superfluid. Superfluid density is expressed through a two-particle Green function for pairing states.
Yi-Cai Zhang
doaj   +1 more source

Correlation function and generalized master equation of arbitrary age [PDF]

open access: yes, 2004
We study a two-state statistical process with a non-Poisson distribution of sojourn times. In accordance with earlier work, we find that this process is characterized by aging and we study three different ways to define the correlation function of ...
Angelo Rosa   +9 more
core   +2 more sources

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

Work Fluctuations and Stochastic Resonance [PDF]

open access: yes, 2007
We study Brownian particle motion in a double-well potential driven by an ac force. This system exhibits the phenomenon of stochastic resonance.
Jayannavar, A. M.   +2 more
core   +2 more sources

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

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