Results 31 to 40 of about 860,460 (345)

Principal factors that determine the extension of detection range in molecular beacon aptamer/conjugated polyelectrolyte bioassays. [PDF]

open access: yes, 2015
A strategy to extend the detection range of weakly-binding targets is reported that takes advantage of fluorescence resonance energy transfer (FRET)-based bioassays based on molecular beacon aptamers (MBAs) and cationic conjugated polyelectrolytes (CPEs).
Bazan, Guillermo C   +5 more
core   +1 more source

Two-Channel Information Fusion Weak Signal Detection Based on Correntropy Method

open access: yesApplied Sciences, 2022
In recent years, as a simple and effective method of noise reduction, singular value decomposition (SVD) has been widely concerned and applied. The idea of SVD for denoising is mainly to remove singular components (SCs) with small singular value (SV ...
Siqi Gong   +5 more
doaj   +1 more source

Research on Buried Pipeline Corrosion Detection Based on Force - Magnetic Coupling Model [PDF]

open access: yesCailiao Baohu, 2022
In order to realize the detection of buried pipes without excavation and provide a theoretical basis for the weak magnetic inspection, the spatial magnetic signal distribution of corroded pipelines under the influences of internal pressure and ...
XU Hong - fei, LIU Yan - jun, Wang Xian
doaj   +1 more source

The Recovery of Weak Impulsive Signals Based on Stochastic Resonance and Moving Least Squares Fitting [PDF]

open access: yes, 2014
In this paper a stochastic resonance (SR)-based method for recovering weak impulsive signals is developed for quantitative diagnosis of faults in rotating machinery.
Fengshou Gu   +19 more
core   +2 more sources

Continuous phase amplification with a Sagnac interferometer [PDF]

open access: yes, 2009
We describe a weak value inspired phase amplification technique in a Sagnac interferometer. We monitor the relative phase between two paths of a slightly misaligned interferometer by measuring the average position of a split-Gaussian mode in the dark ...
Dixon, P. Ben   +4 more
core   +3 more sources

Signal processing in local neuronal circuits based on activity-dependent noise and competition

open access: yes, 2009
We study the characteristics of weak signal detection by a recurrent neuronal network with plastic synaptic coupling. It is shown that in the presence of an asynchronous component in synaptic transmission, the network acquires selectivity with respect to
Andersen P.   +7 more
core   +1 more source

Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD

open access: yesShock and Vibration, 2018
For solving detection problems of multifrequency weak signals in noisy background, a novel weak signal detection method based on variational mode decomposition (VMD) and rescaling frequency-shifted multistable stochastic resonance (RFMSR) with analytical
Dongying Han, Xiao Su, Peiming Shi
doaj   +1 more source

Approach to weak signal extraction and detection via sparse representation

open access: yesTongxin xuebao, 2015
The sparsity models and their popular evaluation algorithms were presented.A sparse representation based approach to weak signal extraction and detection was proposed.Furthermore,a fast algorithm was developed to reduce the computational complexity of ...
Ya-fei TANG, Yun-yong ZHANG, Zhi-bin GUO
doaj   +2 more sources

Fatigue damage evaluation of metallic components based on the maximum Lyapunov exponent of modified Duffing system

open access: yesResults in Physics, 2021
Because the Duffing equation is very sensitive to weak signals and noise immunity, the modified Duffing detection system is applied to detect the weak nonlinear signal in nonlinear ultrasonic experiment.
Yuhua Zhang, Silong Quan, Guoquan Liu
doaj   +1 more source

Non-Gaussian noise benefits for coherent detection of narrowband weak signal [PDF]

open access: yes, 2014
Non-Gaussian noise benefits for coherent detection of narrowband weak ...
D. Abbott, F. Chapeau-Blondeau, F. Duan
core   +3 more sources

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