Results 91 to 100 of about 1,776,592 (192)

Research on Microseismic Signal Denoising Method Based on LMD–SVD

工程科学与技术, 2019
As the real and three-dimension monitoring method, microseismic monitoring can be utilized to evaluate engineering rockmass stability and offer early security warning to people.
Linlu DONG, Ruochen JIANG, Nuwen XU, Bo QIAN   +3 more
doaj  

Experimental Study on Stress Evolution and Microseismic Signals under Vibration Conditions of Coal during Excavation and Subsequent Waiting Time

Shock and Vibration, 2019
An experiment designed to simulate coal during excavation was conducted. Microseismic signals of coal under vibration conditions during excavation and subsequent waiting time of the coal roadway at different excavation speeds were collected and analyzed.
Qifei Wang, Chengwu Li, Pingyang Lyu, Yuechao Zhao, Dihao Ai, Beijing Xie   +5 more
doaj   +1 more source

A Synthetic Solution for Identification and Extraction of the Effective Microseismic Wave Component Using Decomposition on Time, Frequency, and Wavelet Coefficient Domains

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, Qingbin Meng, Shengdong Liu, Hideki Shimada   +3 more
doaj   +1 more source

Key Criteria for a Successful Microseismic Project

, 2010
As microseismic monitoring expands, a wide variety of monitoring configurations have evolved including vertical, horizontal and deviated observation wells as well as surface and near-surface monitoring.
L.. Bennett, B.. Underhill, A.. Martinez, S. C. Maxwell, C.. Woerpel   +4 more
core   +1 more source

CAE Neural Network and Reverse-Time Localization Imaging Method for Picking of Downhole Fracturing Microseismic Signal

Effective surface-based monitoring of microseismic signals generated by hydraulic fracturing in drilling is of significant importance to increase oil and gas production.
Tingting Lin, Wei Wang, Chaoqun Shi
core   +1 more source

Multicomponent microseismic data denoising by 3D shearlet transform

, 2018
The low-magnitude microseismic signals generated by fracture initiation are generally buried in strong background noise, which complicates their interpretation. Thus, noise suppression is a significant step. We have developed an effective multicomponent,
Mirko van der Baan, Chao Zhang
core   +1 more source

Intelligent identification model for microseismic signals during rock slope excavation: A case study in Guiyang, Southwest China

Journal of Rock Mechanics and Geotechnical Engineering
Microseismic monitoring technologies, renowned for their high sensitivity and resolution, serve as an essential tool for monitoring sudden geological hazards.
Youhao An, Linwei Li, Xiqiong Xiang, Yiping Wu, Fasheng Miao, Dewu Liao, Bing Zhen, Yansong Du   +7 more
doaj   +1 more source

Signal service notes, no. 1-20, 22-23.

, 1882
"No. 21 not issued."--U.S. Superintendent of documents. Checklist of U.S. public documents, 1789-1909.Prepared under the direction of W. B.
United States. Army. Signal Corps.
core  

Dynamic model of microseismic signal transformation

Mining Journal of Kryvyi Rih National University
A.V. Bakai, B.I. Rybalko
openaire   +1 more source

A self-supervised GNN-Transformer framework for weak microseismic signal identification. [PDF]

Sci Rep
Liu M, Deng Z, Li Y, Zhang Z, Fu T.
europepmc   +1 more source