Stability Analysis of a Strongly Displacement Time-Delayed Duffing Oscillator Using Multiple Scales Homotopy Perturbation Method [PDF]
In the present study, some perturbation methods are applied to Duffing equations having a displacement time-delayed variable to study the stability of such systems.
Yusry El-Dib
doaj +1 more source
Source Location Identification of Distribution-Level Electric Network Frequency Signals at Multiple Geographic Scales [PDF]
The distribution-level electric network frequency (ENF) extracted from an electric power signal is a promising forensic tool for multimedia recording authentication.
Till, Micah J. +14 more
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Testing the method of multiple scales and the averaging principle for model parameter estimation of quasiperiodic two time-scale models [PDF]
summary:Some dynamical systems are characterized by more than one time-scale, e.g. two well separated time-scales are typical for quasiperiodic systems.
Matonoha, Ctirad, Papáček, Štěpán
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Nonlinear force driven coupled vertical and torsional vibrations of suspension bridges, when the frequency of an external force is approaching one of the natural frequencies of the suspension system, which, in its turn, undergoes the conditions of the ...
Marina Shitikova, Aleks Katembo
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Analysis of a Wind-Driven Power Generation System with Root Slapping Mechanism
This study introduces a groundbreaking slap-type Vibration Energy Harvesting (VEH) system, leveraging a rotating shaft with magnets to induce vibrations in an adjacent elastic steel sheet through magnetic repulsion.
Yi-Ren Wang, Jin-Wei Chang, Chen-Yu Lin
doaj +1 more source
This study provides a double elastic steel sheet (DESS) piezoelectric energy harvester system, in which the vibration generated by the deformation and clap of two elastic steel sheets is assisted by a piezo patch to generate electric energy.
Yi-Ren Wang, Ming-Syun Wong, Bo-Yan Chen
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Accurate mapping of crop distribution on Earth's surface aids in predicting grain production. Pattern classification along with remote sensing imagery can facilitate traditional manual field measurement techniques using machine learning.
Zengwei Tang +5 more
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Modelling of framework materials at multiple scales: current practices and open questions [PDF]
The last decade has seen an explosion of the family of framework materials and their study, both from the experimental and computational point of view.
Siwar, Chibani +2 more
core +1 more source
Technical note: Multiple wavelet coherence for untangling scale-specific and localized multivariate relationships in geosciences [PDF]
The scale-specific and localized bivariate relationships in geosciences can be revealed using bivariate wavelet coherence. The objective of this study was to develop a multiple wavelet coherence method for examining scale-specific and localized ...
W. Hu, B. C. Si
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A Robust Method for Large‐Scale Multiple Hypotheses Testing [PDF]
AbstractWhen drawing large‐scale simultaneous inference, such as in genomics and imaging problems, multiplicity adjustments should be made, since, otherwise, one would be faced with an inflated type I error. Numerous methods are available to estimate the proportion of true null hypotheses π0, among a large number of hypotheses tested.
Seungbong, Han +2 more
openaire +2 more sources

