Results 21 to 30 of about 13,972 (253)
From ECG signals to images: a transformation based approach for deep learning [PDF]
PeerJ Computer Science, 2021 Provocative heart disease is related to ventricular arrhythmias (VA). Ventricular tachyarrhythmia is an irregular and fast heart rhythm that emerges from inappropriate electrical impulses in the ventricles of the heart. Different types of arrhythmias are
Mahwish Naz +5 more
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Multiband Envelope Spectra Extraction for Fault Diagnosis of Rolling Element Bearings
Sensors, 2018 Bearing fault features are presented as repetitive transient impulses in vibration signals. Narrowband demodulation methods have been widely used to extract the repetitive transients in bearing fault diagnosis, for which the key factor is to accurately ...
Jie Duan +4 more
doaj +1 more source
Flashover Processes Between Conductive Paths on a Circuit Board Under Very Fast Impulse Voltages
IEEE Transactions on Device and Materials Reliability, 2010 In this paper, flashover process between conductive paths (CPs) on a circuit board under very fast impulse voltages is investigated. For this purpose, an electronic circuit board of FR4 with CPs (electrodes), which are seven different geometrical shapes on it, is prepared.
Akses, Aysam, Kalenderli, Oezcan
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Shock and Vibration, 2016 Vibration signals of the defect rolling element bearings are usually immersed in strong background noise, which make it difficult to detect the incipient bearing defect.
Xingxing Jiang, Shunming Li, Chun Cheng
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Sensors, 2021 Motor bearings are one of the most critical components in rotating machinery. Envelope demodulation analysis has been widely used to demodulate bearing vibration signals to extract bearing defect frequency components but one of the main challenges is to ...
D.-M. Yang
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Development of Mathematical Algorithm for Seismoacoustic Signals Identification Using Local Geomechanical Control Means [PDF]
E3S Web of Conferences, 2019 This article reviews a creating of algorithm for the automatic seismoacoustic signals identification. The developed algorithm will be part of the software multi-channel device. The useful signals detection problem from the geomechanical state data stream
Gladyr Andrey +3 more
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FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
Journal of Space Weather and Space Climate, 2019 Geomagnetically induced currents (GICs) represent a significant challenge for society on a stable electricity supply. Space weather activates global electromagnetic and plasma processes in the near-Earth environment, however, the highest risk of GICs is ...
Belakhovsky Vladimir +4 more
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A TEM-Horn Antenna with Dielectric Lens for Fast Impulse Response [PDF]
, 1997 We designed and constructed a pair of TEM-horn antennas specifically for the very fast time-domain boresight response. Two physical topologies were made. A printed-board configuration has much slower transient response, which we think is due to pulse-smearing of the antenna currents in the dielectric substrate of the printed wiring boards.
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From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source