Results 41 to 50 of about 256 (147)

Bearing Fault Diagnosis Based on Energy Spectrum Statistics and Modified Mayfly Optimization Algorithm

open access: yesSensors, 2021
This study proposes a novel resonance demodulation frequency band selection method named the initial center frequency-guided filter (ICFGF) to diagnose the bearing fault. The proposed technology has a better performance on resisting the interference from
Yuhu Liu   +3 more
doaj   +1 more source

Effect of moisture on electrical response of sand and clay under high impulse voltage applications [PDF]

open access: yes, 2017
Soil plays an important role in ground designing. Engineers normally consider only soil resistivity under normal or steady state condition when designing the grounding system. Under certain circumstances such as lightning, electrical response of the soil
Gomes, Chandima   +2 more
core  

The Effect of Ladder Drill Side Right In Training on Increasing the Agility of the Futsal Team of SMKN 1 Kandangan [PDF]

open access: yes
This study aims to determine the effect of ladder drill side right in training on improving agility in the futsal team of SMK Negeri 1 Kandangan. Pre-experimental was used as the research method and Pretest and Posttest in One Group as the research ...
Rachman, Aryadi   +2 more
core   +2 more sources

Reduced harmonic complexity of brain parenchymal cardiovascular pulse waveforms in Alzheimer’s disease

open access: yesNeuroImage
Alzheimer’s disease (AD) is characterized by specific neuropathologies, and is associated with arterial wall β-amyloid accumulations, which lead to radiologically detectable amplitude increases and variable propagation speed of cardiovascular impulses in
Anssi Koivula   +14 more
doaj   +1 more source

Icarus : how to survive the fall [PDF]

open access: yes, 2019
In this writing I will explore several films, videos, performances, and photographs from the past century that resist capitalism’s tendency to crush hubris, exaltation, and indetermination.
Stark-Menneg, Emile
core   +1 more source

Agile acousto-optic delay line for fast impulsive stimulated Raman imaging

open access: yesOptics Letters
We introduce and characterize a fast (50 kHz), long range (50 ps) and random-access optical delay line based on an acousto-optic deflector inserted in the Fourier plane of a zero-dispersion line. The advantages of this agile delay line are demonstrated in the context of impulsive stimulated Raman imaging in the low-frequency range (&
Suresh, Sisira   +7 more
openaire   +3 more sources

Characterization of ESD protection structures for 65 nm CMOS technology [PDF]

open access: yes, 2022
ESD phenomena are well known to be extremely dangerous for microelectronic devices. This thesis deals with failures induced by ESD phenomena, starting from the description of main charging events up to the physics beyond the operation of different ...
Di Biccari, Leonardo
core  

Exposing an “Intangible” Cognitive Skill Among Collegiate Football Players: II. Enhanced Response Impulse Control

open access: yesFrontiers in Psychology, 2018
American football is played in a dynamic environment that places considerable demands on a player’s ability to make fast, precise reactions while controlling premature, impulsive reactions to spatial misinformation.
Theodore R. Bashore   +6 more
doaj   +1 more source

Fast impulsive reconnection and current sheet intensification due to electron pressure gradients in semi‐collisional plasmas

open access: yesGeophysical Research Letters, 1996
A numerical simulation of forced reconnection and current sheet growth due to inward boundary flows in semi‐collisional plasmas is presented, and contrasted with the results of an incompressible resistive MHD simulation in the high‐Lundquist‐number regime.
Z. W. Ma, A. Bhattacharjee
openaire   +1 more source

A Novel Method for Extracting Maximum Kurtosis Component and Its Applications in Rolling Bearing Fault Diagnosis

open access: yesShock and Vibration, 2019
Rolling bearing plays an important role in the overall operation of the mechanical system; therefore, it is necessary to monitor and diagnose the bearings. Kurtosis is an important index to measure impulses.
Yonggang Xu   +3 more
doaj   +1 more source

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