Results 31 to 40 of about 351,312 (306)

Secured Credit and Bankruptcy: A Call for the Federalization of Personal Property Security Law [PDF]

open access: yes, 1987
In recent years, the need for systems monitoring the current in ation pressure in pneumatic tires has grown dramatically. One way to monitor the in ation pressure is to use the fact that the tire reacts like a spring when excited from road roughness. The
Phillips, David M.
core   +2 more sources

Vibration signal identification of coal-rock cutting of shearer based on cepstral distance

open access: yesGong-kuang zidonghua, 2017
In order to solve problems that conventional time-frequency domain analysis methods were sensitive to noise and had poor adaptability of energy change in coal-rock interface identification based on vibration signal analysis, a vibration signal ...
ZHANG Qizhi, QIU Jinbo, ZHUANG Deyu
doaj   +1 more source

Deep Learning-Based Denoising of Noisy Vibration Signals from Wavefront Sensors Using BiL-DCAE

open access: yesSensors
In geophysical exploration, laser remote sensing detection of seismic waves based on wavefront sensors can be used for geological detection and geophysical exploration.
Yun Pan   +7 more
doaj   +1 more source

Rotating Machinery Vibration Signal Processing And Fault Diagnosis Based on LMD

open access: yesMATEC Web of Conferences, 2016
There are abundant of fault information in rotating machinery vibration signal. On account of the nonlinearity and non-stationarity, the paper first does pre-process to the vibration signal using wavelet threshold denoising method and this method can ...
Bo Ruirui, Zhang Ze
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Study of Point Scanning Detection Mechanisms for Vibration Signals with Wavefront Sensors

open access: yesPhotonics
Seismic wave laser remote sensing is extensively employed in seismic monitoring and resource exploitation. This work establishes a vibration signal point scanning detection system utilizing wavefront sensors, leveraging their high resolution, array ...
Quan Luo   +7 more
doaj   +1 more source

Edge-type connectors evaluated by electrical noise measurement [PDF]

open access: yes, 1967
Electrical noise measurement system measures noise generated by edge-type connectors and circuit cards when they are subjected to sinusoidal vibration. It provides a signal across the contact area and monitors the signal change during vibration.
Brummett, S. L.
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

A Hybrid Gearbox Fault Diagnosis Method Based on GWO-VMD and DE-KELM

open access: yesApplied Sciences, 2021
In this paper, a vibration signal-based hybrid diagnostic method, including vibration signal adaptive decomposition, vibration signal reconstruction, fault feature extraction, and gearbox fault classification, is proposed to realize fault diagnosis of ...
Gang Yao   +3 more
doaj   +1 more source

Multivariate statistical analysis for damage and delamination in composite structures [PDF]

open access: yes, 2013
The article is devoted to the analysis of the vibration response of composite laminates .Our aim is to develop a method for analysis of the vibration response of structures made of composites which will also be used to develop a vibration-based health ...
Garcia, David, Trendafilova, Irina
core  

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