Results 31 to 40 of about 13,580 (276)
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
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
doaj +1 more source
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
doaj +1 more source
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.
openaire +1 more source
ARTERIAL BLOOD PRESSURE WAVEFORM ARTIFACTS DETECTION USING SHORT-TIME FOURIER TRANSFORM [PDF]
High-frequency waveform recordings of biological signals enable more detailed data analysis and deeper physiological exploration. However, the waveform data—like invasive arterial blood pressure (ABP)—are particularly susceptible to frequent ...
Horakova, Lenka +3 more
core +2 more sources
Design and testing of a 3D printed propulsion system for small satellites [PDF]
, 2015 textA cold gas propulsion system for small spacecraft orbital maneuvers was developed by the University of Texas at Austin's Texas Spacecraft Laboratory.
Stevenson, Terry Hurley
core +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
Bridging the gap: Multi‐stakeholder perspectives of molecular diagnostics in oncology
Molecular Oncology, EarlyView.Although molecular diagnostics is transforming cancer care, implementing novel technologies remains challenging. This study identifies unmet needs and technology requirements through a two‐step stakeholder involvement. Liquid biopsies for monitoring applications and predictive biomarker testing emerge as key unmet needs. Technology requirements vary by
Jorine Arnouts +8 more
wiley +1 more source
AIMS MathematicsThe paper examines the input-to-state stability (ISS) in nonlinear impulsive systems under Event-triggered impulsive control (ETIC), which is a method that differs from traditional approaches by activating the controller only when state-dependent event ...
Biwen Li, Yu Gu
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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
doaj +1 more source