Results 21 to 30 of about 133,224 (286)

Bearing fault diagnosis by stochastic resonance method in periodical potential system

open access: yes工程科学学报, 2018
In industrial production, bearings are widely used in rotating machinery. Bearing fault diagnosis plays an important role in preventing disasters and protecting lives and properties.
ZHANG Jing-ling   +4 more
doaj   +1 more source

Stochastic resonance in perspective [PDF]

open access: yesIl Nuovo Cimento D, 1995
We outline the historical development of stochastic resonance (SR), a phenomenon in which the signal and/or the signal-to-noise ratio in a nonlinear system increase with increasing intensity of noise. We discuss basic theoretical ideas explaining and describing SR, and we review some revealing experimental data that place SR within the wider context of
DYKMAN MI   +5 more
openaire   +2 more sources

Information length as a new diagnostic of stochastic resonance [PDF]

open access: yes, 2019
Stochastic resonance is a subtle, yet powerful phenomenon in which noise plays an interesting role of amplifying a signal instead of attenuating it. It has attracted great attention with a vast number of applications in physics, chemistry, biology, etc ...
Hollerbach, Rainer, Kim, Eun-jin
core   +1 more source

Active and reactive power in stochastic resonance for energy harvesting [PDF]

open access: yes, 2015
A power allocation to active and reactive power in stochastic resonance is discussed for energy harvesting from mechanical noise. It is confirmed that active power can be increased at stochastic resonance, in the same way of the relationship between ...
Hikihara, Takashi   +2 more
core   +2 more sources

Detection of Single Molecules Using Stochastic Resonance of Bistable Oligomers

open access: yesNanomaterials, 2020
Ultra-sensitive elements for nanoscale devices capable of detecting single molecules are in demand for many important applications. It is generally accepted that the inevitable stochastic disturbance of a sensing element by its surroundings will limit ...
Anastasia Markina   +3 more
doaj   +1 more source

A New Piecewise Nonlinear Asymmetry Bistable Stochastic Resonance Model for Weak Fault Extraction

open access: yesMachines, 2022
In order to solve output saturation problems found in traditional stochastic resonance methods and to improve the diagnosis ability of weak faults, a new piecewise nonlinear asymmetric bistable stochastic resonance (PNABSR) method is proposed. This model
Li Cui, Wuzhen Xu
doaj   +1 more source

Stochastic resonance in electrical circuits—II: Nonconventional stochastic resonance. [PDF]

open access: yes, 1999
Stochastic resonance (SR), in which a periodic signal in a nonlinear system can be amplified by added noise, is discussed. The application of circuit modeling techniques to the conventional form of SR, which occurs in static bistable potentials, was ...
Luchinsky, D. G.   +3 more
core   +1 more source

Nonstationary stochastic resonance [PDF]

open access: yesPhysical Review E, 1998
It is by now established that, remarkably, the addition of noise to a nonlinear system may sometimes facilitate, rather than hamper the detection of weak signals. This phenomenon, usually referred to as stochastic resonance, was originally associated with strictly periodic signals, but it was eventually shown to occur for stationary aperiodic signals ...
openaire   +2 more sources

Single-Molecule Stochastic Resonance

open access: yesPhysical Review X, 2012
Stochastic resonance (SR) is a well-known phenomenon in dynamical systems. It consists of the amplification and optimization of the response of a system assisted by stochastic (random or probabilistic) noise.
K. Hayashi   +4 more
doaj   +1 more source

Asymmetric second-order stochastic resonance weak fault feature extraction method

open access: yesMeasurement + Control, 2020
To solve the problem that the weak fault signal is difficult to extract under strong background noise, an asymmetric second-order stochastic resonance method is proposed.
Jiachen Tang, Boqiang Shi
doaj   +1 more source

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