Results 31 to 40 of about 32,366 (309)

Stochastic resonance of two coupled fractional harmonic oscillators in Jerk equation

open access: yesResults in Physics, 2023
The stochastic resonance (SR) phenomenon in two coupled fractional harmonic oscillators with inherent frequency, employing the Jerk equation under the influence of multiplicative dichotomous noise and an applied periodic force have been investigated in ...
Hailing Li   +4 more
doaj   +1 more source

Coherent stochastic resonance [PDF]

open access: yesPhysical Review E, 1995
We consider Brownian motion on a line terminated by two trapping points. A bias term in the form of a telegraph signal is applied to this system. It is shown that the first two moments of survival time exhibit a minimum at the same resonant frequency.
Masoliver, Jaume, 1951-   +2 more
openaire   +3 more sources

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

Time-Delayed Feedback Tristable Stochastic Resonance Weak Fault Diagnosis Method and Its Application

open access: yesShock and Vibration, 2019
Pulses caused by rotating mechanical faults are weak and often submerged in strong background noise, which can affect the accuracy of fault detection.
Zhixing Li   +4 more
doaj   +1 more source

Power System Signal-Detection Method Based on the Accelerated Unsaturated Stochastic Resonance Principle

open access: yesApplied Sciences
The classical bistable stochastic resonance algorithm has an inherent output saturation defect that restricts the amplitude of the output signal. This paper examines the causes of this phenomenon and its negative impact on the detection of weak signals ...
Shuqin Sun   +4 more
doaj   +1 more source

Discerning protein pools by selective staining with self‐labeling tags

open access: yesFEBS Letters, EarlyView.
Cell surface proteins have an intra‐ and extracellular pool. Combining genetic fusion to self‐labeling tags that can be addressed with small molecule fluorophores allows separating these pools. We highlight recent developments and techniques for state‐of‐the‐art interrogation of cell surface proteins in the complex tissue setting.
Kati Fischermanns, Johannes Broichhagen
wiley   +1 more source

Brownian motors and stochastic resonance [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2011
We study the transport properties for a walker on a ratchet potential. The walker consists of two particles coupled by a bistable potential that allow the interchange of the order of the particles while moving through a one-dimensional asymmetric periodic ratchet potential. We consider the stochastic dynamics of the walker on a ratchet with an external
Mateos, José L., Alatriste, Fernando R.
openaire   +4 more sources

Fault Diagnosis of Rotating Machinery Based on Adaptive Stochastic Resonance and AMD-EEMD

open access: yesShock and Vibration, 2016
An adaptive stochastic resonance and analytical mode decomposition-ensemble empirical mode decomposition (AMD-EEMD) method is proposed for fault diagnosis of rotating machinery in this paper.
Peiming Shi, Cuijiao Su, Dongying Han
doaj   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

open access: yesAdvanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle   +5 more
wiley   +1 more source

Non-Markovian Stochastic Resonance [PDF]

open access: yesPhysical Review Letters, 2003
The phenomenological linear response theory of non-Markovian Stochastic Resonance (SR) is put forward for stationary two-state renewal processes. In terms of a derivation of a non-Markov regression theorem we evaluate the characteristic SR-quantifiers; i.e. the spectral power amplification (SPA) and the signal-to-noise ratio (SNR), respectively.
Goychuk, Igor, Hänggi, Peter
openaire   +4 more sources

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