Results 41 to 50 of about 139,732 (335)

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

Spatial stochastic resonance in 1D Ising systems

open access: yes, 1999
The 1D Ising model is analytically studied in a spatially periodic and oscillatory external magnetic field using the transfer-matrix method. For low enough magnetic field intensities the correlation between the external magnetic field and the response in
Erzsébet Ravasz   +17 more
core   +1 more source

What is stochastic resonance? Definitions, misconceptions, debates, and its relevance to biology. [PDF]

open access: yesPLoS Computational Biology, 2009
Stochastic resonance is said to be observed when increases in levels of unpredictable fluctuations--e.g., random noise--cause an increase in a metric of the quality of signal transmission or detection performance, rather than a decrease.
Mark D McDonnell, Derek Abbott
doaj   +1 more source

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

Stochastic Resonance Can Drive Adaptive Physiological Processes [PDF]

open access: yes, 2009
Stochastic resonance (SR) is a concept from the physics and engineering communities that has applicability to both systems physiology and other living systems. In this paper, it will be argued that stochastic resonance plays a role in driving behavior in
Bradly J. Alicea
core   +1 more source

Intrinsic noise induced resonance in presence of sub-threshold signal in Brusselator

open access: yes, 2011
In a system of non-linear chemical reactions called the Brusselator, we show that {\it intrinsic noise} can be regulated to drive it to exhibit resonance in the presence of a sub-threshold signal.
Bartholomay A. F.   +4 more
core   +2 more sources

Noise-enhanced computation in a model of a cortical column [PDF]

open access: yes, 2005
Varied sensory systems use noise in order to enhance detection of weak signals. It has been conjectured in the literature that this effect, known as stochastic resonance, may take place in central cognitive processes such as the memory retrieval of ...
Gerstner, Wulfram, Mayor, Julien
core   +2 more sources

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin   +9 more
wiley   +1 more source

ROLLING BEARING WEAK FAULT FEATURE EXTRACTION BASED ON MULTIPOINT OPTIMAL MINIMUM ENTROY DECONVOLUTION ADJUSTED AND ADAPTIVE STOCHASTIC RESONANCE WITH CUCKOO SEARCH

open access: yesJixie qiangdu, 2021
Adjusting the value of nonlinear system parameters will affect the output Signal-to-Noise Ratio( SNR),so Signalto-Noise Ratio( SNR) was used as the output evaluation index of stochastic resonance.
QUAN ZhenYa, ZHANG XueLiang
doaj  

Nonstationary Stochastic Resonance in a Single Neuron-Like System

open access: yes, 1998
Stochastic resonance holds much promise for the detection of weak signals in the presence of relatively loud noise. Following the discovery of nondynamical and of aperiodic stochastic resonance, it was recently shown that the phenomenon can manifest ...
A. Longtin   +33 more
core   +1 more source

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