Results 41 to 50 of about 5,315,268 (243)

Analyses of extreme swell events on La Réunion Island from microseismic noise [PDF]

open access: yes, 2016
International audienceOcean wave activity excites seismic waves that propagate through the solid earth, known as microseisms, which, once recorded on oceanic islands, can be used to analyze the swell.
Barruol, Guilhem   +3 more
core   +4 more sources

Expert-based development of a standard in CO2 sequestration monitoring technology [PDF]

open access: yes, 2014
Bureau of Economic ...
Hovorka, S. D.   +6 more
core   +1 more source

Research on Feature Fusion Method of Mine Microseismic Signal Based on Unsupervised Learning

open access: yesShock and Vibration, 2021
The feature extraction of high-precision microseismic signals is an important prerequisite for multicategory recognition of microseismic signals, and it is also an important basis for intelligent sensing modules in smart mines.
R. Liu
semanticscholar   +1 more source

Observations of the seasonality of the Antarctic microseismic signal, and its association to sea ice variability [PDF]

open access: yes, 2011
International audienceSeismic noise spectra at all seismic stations display two peaks in the 1-20 s period band, called primary and secondary microseisms. They are caused by the coupling of ocean waves into Rayleigh waves. At most locations, microseismic
Grob, Mélanie   +2 more
core   +4 more sources

Generation and Propagation of Microseismic Signals from Footsteps [PDF]

open access: yes, 1973
Abstract : A study was conducted to investigate the generation and propagation of microseismic signals from man-walking targets. To illustrate the relation between terrain parameters and Rayleigh wage generation and propagation, the problem was divided into four parts, which were then studied graphically.
Bob O. Benn, Jerry R. Lundien
openaire   +1 more source

A method to estimate the microseismic magnitude based on vector scanning

open access: yes地震科学进展, 2023
The magnitude of a seismic event can be estimated by measuring seismic energy, seismic moment, and relationship between the energy and seismic magnitude (M),etc.
Yanjun Feng, Beiyuan Liang
doaj   +1 more source

First observation of paired microseismic signals during solution salt mining

open access: yesFrontiers in Earth Science, 2022
To monitor the status of cavern roof instability induced by solution salt mining, we deployed a surface microseismic monitoring system for Dongxing salt mine, Dingyuan county, China. The microseismic monitoring system consists of 11 three-component geophones installed in shallow holes of 5 m deep.
Jiawei Qian   +9 more
openaire   +2 more sources

Automatic Events Recognition in Low SNR Microseismic Signals of Coal Mine Based on Wavelet Scattering Transform and SVM

open access: yesEnergies, 2022
The technology of microseismic monitoring, the first step of which is event recognition, provides an effective method for giving early warning of dynamic disasters in coal mines, especially mining water hazards, while signals with a low signal-to-noise ...
Xin Fan   +5 more
doaj   +1 more source

Nanoseismic monitoring for detection of rockfalls. Experiments in quarry areas [PDF]

open access: yes, 2018
Le frane per crollo da ammassi rocciosi fratturati sono tra i processi di instabilità gravitativa che più frequentemente interessano opere antropiche quali tagli su versanti naturali o artificiali, pareti di cava, trincee stradali, autostradali o ...
Fiorucci, M.   +4 more
core   +1 more source

The Optimum Wavelet Base of Wavelet Analysis in Coal Rock Microseismic Signals

open access: yesAdvances in Mechanical Engineering, 2014
Coal rock rupture microseismic signal is characterized by time-varying, nonstationary, unpredictability, and transient property. Wavelet transform is an important method in microseismic signals processing. However, different wavelet bases yield different
Shoufeng Tang, Minming Tong, Xinmin He
doaj   +1 more source

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