Results 1 to 10 of about 1,762,757 (234)

Acoustic wave detection of laser shock peening

open access: yesOpto-Electronic Advances, 2018
In order to overcome the existing disadvantages of offline laser shock peening detection methods, an online detection method based on acoustic wave signals energy is provided.
Wu Jiajun   +5 more
doaj   +3 more sources

Effects of the pipe-joints on acoustic emission wave propagation velocity [PDF]

open access: yes, 2008
In jointed-pipes, a variety of different acoustic emission (AE) waves can be generated by way of mode conversion, wave reflection and wave transmission from a joint. This can lead to interference waves as resulting complicated signals propagate along the
Wichaidit, W, Au, YHJ
core   +6 more sources

Wave Climate, Geotechnical and Geophysical Analysis of the Tillamook Jetties [PDF]

open access: yes
Wave Energy AS (WE) is an ocean energy company from Norway established to develop, test, market and commercialize the patented SSG™ wave energy converter technology.
Wave Energy AS, Bakke, Monica
core   +6 more sources

Application of adaptive wavelet thresholding to recovery geoacoustic signal pulse waveforms [PDF]

open access: yesEPJ Web of Conferences, 2021
Recorded geoacoustic signals often contain noise and interference. Their appearance is caused by various reasons, e.g. of propagation environment heterogeneity, weather condition influence, human activity, etc.
Lukovenkova Olga
doaj   +1 more source

Overview of processing and analysis methods for pulse geophysical signals [PDF]

open access: yesE3S Web of Conferences, 2020
The paper discusses the processing and analysis methods for the geoacoustic and electromagnetic emission pulse signals recorded for more than 20 years at the IKIR FEB RAS geodynamic proving ground (Kamchatka Peninsula).
Lukovenkova Olga   +3 more
doaj   +1 more source

Analysis of geoacoustic emission and electromagnetic radiation signals accompanying earthquake with magnitude Mw = 7.5 [PDF]

open access: yesE3S Web of Conferences, 2020
The paper is devoted to the analysis of frequency spectra and pulse waveform variety of the geoacoustic and electromagnetic signals recorded on Kamchatka Peninsula at “Karymshina” site during seismically calm and active periods.
Lukovenkova Olga, Solodchuk Alexandra
doaj   +1 more source

Sound Range AE as a Tool for Diagnostics of Large Technical and Natural Objects

open access: yesSensors, 2023
Application of acoustic emission of the sound frequency range is under consideration. This range is of current interest for the diagnostics of the stability of mountain slopes, glaciers, ice covers, large technical constructions (bridges, dams, etc.) as ...
Yuri Marapulets   +4 more
doaj   +1 more source

Search for anomalies in pulse flows of acoustic and electromagnetic emissions [PDF]

open access: yesE3S Web of Conferences, 2020
Timely warning of disasters caused by earthquakes ensures life safety. Therefore, the search for markers of pre-seismic events preceding earthquakes remains an important research task.
Senkevich Yury
doaj   +1 more source

Estimation of the power of geoacoustic emission sources registered in Mikizha Lake, Kamchatka region [PDF]

open access: yesE3S Web of Conferences, 2019
A method for estimating the power of geoacoustic emission sources recorded by a combined hydroacoustic receiver in Mikizha lake (Kamchatka region) is proposed. The results of the method application at different stages of seismic activity are presented.
Shcherbina Albert, Solodchuk Alexandra
doaj   +1 more source

Adaptive Approach to Time-Frequency Analysis of AE Signals of Rocks

open access: yesSensors, 2022
The paper describes a new adaptive approach to the investigation of acoustic emission of rocks, the anomalies of which may serve as short-term precursors of strong earthquakes. The basis of the approach is complex methods for monitoring acoustic emission
Olga Lukovenkova   +2 more
doaj   +1 more source

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