Results 51 to 60 of about 5,802,905 (300)

The Reproducing Kernel Function for the Image Space of a Limited Spectrum Wavelet Transform

open access: yesJournal of Harbin University of Science and Technology, 2017
In order to describe the nature of image space of the wavelet transform and a limited spectrum and decay faster wavelet,this paper uses Shannon scaling function to construct a wavelet function,take advantage of wavelet analysis theory to give the nature ...
DENG Cai-xia, HE Peng, CHEN Xia-xia
doaj   +1 more source

The Adaptive Analysis of Shock Signals on the Basis of Improved Morlet Wavelet Clusters

open access: yesShock and Vibration, 2018
Morlet wavelets do not satisfy the permissibility condition of wavelet analysis, and there are therefore no inverse transformations for Morlet wavelet transforms.
Haikun Yang, Hong-Xia Pan
doaj   +1 more source

Research of fault location of underground power cable based on multi-wavelet

open access: yesGong-kuang zidonghua, 2014
In view of problem of low location precision in fault location method of underground power cable based on traditional wavelet transform caused by asymmetry of wavelet function, the paper proposed a fault location method of underground power cable based ...
DONG Aihua, SU Ying
doaj   +1 more source

On zerotree quantization for embedded wavelet packet image coding [PDF]

open access: yes, 1999
Wavelet packets are an effective representation tool for adaptive waveform analysis of a given signal. We first combine the wavelet packet representation with zerotree quantization for image coding. A general zerotree structure is defined which can adapt
Wilson, Roland   +3 more
core  

Wavelet theory and its applications [PDF]

open access: yes, 1996
This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). We investigated the theory of wavelet transforms and their relation to Laboratory applications.
Bradley, JJ.   +4 more
core   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

open access: yesFEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno   +3 more
wiley   +1 more source

Wavelet packet transforms analysis applied to carbon prices [PDF]

open access: yes
This paper deals with carbon price variations using a multi time scale decomposition based on the theory of wavelets. Our approach is based on wavelet packet transforms.
Julien Chevallier
core   +2 more sources

Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi   +8 more
wiley   +1 more source

Fault Diagnosis for Micro-Gas Turbine Engine Sensors via Wavelet Entropy

open access: yesSensors, 2011
Sensor fault diagnosis is necessary to ensure the normal operation of a gas turbine system. However, the existing methods require too many resources and this need can’t be satisfied in some occasions.
Tianhong Zhang, Bing Yu, Dongdong Liu
doaj   +1 more source

Simulation of a non‐linear, time‐variant circuit using the Haar wavelet transform

open access: yesIET Science, Measurement & Technology, 2022
Wavelet theory has disentangled numerous complexities, including those pertinent to transient and steady‐state responses of systems, when Laplace and Fourier transforms face insoluble obstacles. Reactive linear components (e.g.
Georgios G. Roumeliotis   +2 more
doaj   +1 more source

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