Results 121 to 130 of about 5,315,268 (243)
Shock and Vibration, 2017 To reduce noise components from original microseismic waves, a comprehensive fine signal processing approach using the integrated decomposition analysis of the wave duration, frequency spectrum, and wavelet coefficient domain was developed and ...
Mingwei Zhang +3 more
doaj +1 more source
J. Sensors, 2015 To study the generation mechanism and failure mode of cracks in mass concrete, microseismic monitoring is conducted on the fracture processes of the three-point bending roller compacted concrete (RCC) beam of Guanyinyan hydropower station.
N. Xu, F. Dai, C. Sha, Y. Lei, Biao Li
semanticscholar +1 more source
Using the LANDSAT data collection system for field geophysics: Operations in the British Virgin Islands [PDF]
This particular application was to vertical geodesy by tide gauge and tiltmeter on a small desert island in the British Virgin Islands.
Allen, W. K. +3 more
core +1 more source
Siamese Unsupervised Clustering For Removing Uncertainty In Microseismic Signal Labelling
IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing SymposiumThe labelling of large seismic datasets is a challenging problem. Currently the methods most favoured by geoscientists are based on well known geophysical properties with STA/LTA ratio pickers remaining highly trusted to generate results which can be quickly attributed due to their ability to pick relatively high Signal to Noise Ratio (SNR) events with
Murray, David +2 more
openaire +2 more sources
The effect of local wind on seismic noise near 1 Hz at the MELT site and in Iceland [PDF]
, 1999 The mantle electromagnetic and tomography (MELT) experiment on the east Pacific rise near 17°S was the first large teleseismic experiment on a midocean ridge.
Bjarnason, Ingi Þorleifur +2 more
core
WSNs Microseismic Signal Subsection Compression Algorithm Based on Compressed Sensing
, 2015 For wireless network microseismic monitoring and the problems of low compression ratio and high energy consumption of communication, this paper proposes a segmentation compression algorithm according to the characteristics of the microseismic signals and
Zhouzhou Liu, Fubao Wang
semanticscholar +1 more source
Seismic imaging of hydraullically-stimulated fractures: A numerical study of the effect of the source mechanism [PDF]
, 2012 We present a numerical study of seismic imaging of hydraulically stimulated fractures using a single source from an adjacent fracturing-process. The source is either a point force generated from the perforation of the casing of the well or a double ...
Bakku, Sudhish Kumar +3 more
core
Ecoute microsismique appliquée aux versants instables, exemple des ruines de Séchilienne (Isère, 38) [PDF]
, 2010 International audienceField observations and movements measured since 1985 by the Lyon CETE (Public works regional engineering office) monitoring system at the Ruines de Séchilienne show that the slope deformation and fault mechanisms are complex.
Bigarre, Pascal +3 more
core +1 more source
Time-Frequency Representation of Microseismic Signals using the Synchrosqueezing Transform
, 2013 Resonance frequencies can provide useful information on the deformation occurring during fracturing experiments or $CO_2$ management, complementary to the microseismic event distribution. An accurate time-frequency representation is of crucial importance prior to interpreting the cause of resonance frequencies during microseismic experiments.
Herrera, Roberto H. +2 more
openaire +2 more sources
IEEE AccessEffective surface-based monitoring of microseismic signals generated by hydraulic fracturing in drilling is of significant importance to increase oil and gas production.
Wei Wang, Tingting Lin, Chaoqun Shi
doaj +1 more source