Results 11 to 20 of about 13,848 (294)
A Fast Sparse Decomposition Based on the Teager Energy Operator in Extraction of Weak Fault Signals
Sensors, 2022 In order to diagnose an incipient fault in rotating machinery under complicated conditions, a fast sparse decomposition based on the Teager energy operator (TEO) is proposed in this paper.
Baokang Yan +4 more
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Finite-time stability of set switched systems with non-instantaneous impulses
Applied Mathematics in Science and Engineering, 2022 In this paper, we discuss the finite-time stability of set switched systems with non-instantaneous impulses which consist of stable and unstable subsystems through introducing a revised mode-dependent average dwell time method.
Peiguang Wang, Mengyu Guo, Junyan Bao
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High Voltage, 2021 In this study, the implementation of different corona discharge models in a transient program for overhead multiconductor lines based on the implicit Crank‐Nicolson Finite Difference Time Domain method is presented.
Erika Stracqualursi +2 more
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Morlet Wavelet UDWT Denoising and EMD based Bearing Fault Diagnosis [PDF]
Electronics, 2013 Bearing Faults in rotating machinery occur as low energy impulses in their vibration signal and are lost in the noise. This signal has to be properly denoised before analyzing for effective condition monitoring.
A. Santhana Raj, N. Murali
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Energies, 2019 In many publications, the characteristics of practical earthing systems were investigated under conditions involving fast-impulse currents of different magnitudes by field measurements.
Abdul Wali Abdul Ali +4 more
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Frontiers in Physiology, 2014 Initiation of cardiac arrhythmias typically follows one or more premature impulses either occurring spontaneously or applied externally. In this study, we characterize the dynamics of propagation of single (S2) and double premature impulses (S3), and the
Candido eCabo
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A critical review on soil ionisation modelling for grounding electrodes [PDF]
, 2016 Grounding electrode resistance non-linearly changes under impulse conditions due to soil ionisation phenomenon. Several models have been proposed to model soil ionisation for grounding electrodes applications.
Abdul-Malek, Z. +2 more
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Energies, 2023 Impulsive underwater discharges have been investigated for many decades, yet the complex pre-breakdown processes that underpin their development are not fully understood.
Yifan Chai +4 more
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Experimental Investigation of the Accuracy of an Ultrawideband Time-Domain Microwave-Tomographic System [PDF]
, 2011 The measurement accuracy of an ultrawideband (UWB) time-domain microwave-tomographic system is investigated. In order to make an assessment of the random variation of the measurements, the measurement repeatability of the system is evaluated by ...
Fhager, Andreas +4 more
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Respiratory brain impulse propagation in focal epilepsy
Scientific Reports, 2023 Respiratory brain pulsations pertaining to intra-axial hydrodynamic solute transport are markedly altered in focal epilepsy. We used optical flow analysis of ultra-fast functional magnetic resonance imaging (fMRI) data to investigate the velocity ...
Ahmed Elabasy +9 more
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