Consumer behaviour towards organic products: The moderating role of environmental concern

S Cachero-Martínez - Journal of Risk and Financial Management, 2020 - mdpi.com
The pandemic caused by COVID-19 has changed the mindset of many consumers. They are
increasingly aware of the risks of not caring for the planet. Before the pandemic, there was a …

Automatic microseismic event picking via unsupervised machine learning

Y Chen - Geophysical Journal International, 2020 - academic.oup.com
Effective and efficient arrival picking plays an important role in microseismic and earthquake
data processing and imaging. Widely used short-term-average long-term-average ratio …

[HTML][HTML] 深度神经网络拾取地震P 和S 波到时

于子叶, 储日升, 盛敏汉 - 地球物理学报, 2018 - html.rhhz.net
从地震波形数据中快速准确地提取各个震相的到时是地震学中的基础问题.
本文针对上述问题提出了利用深度神经网络拾取到时的新方法, 建立了用于地震到时提取的17 …

[HTML][HTML] 微地震信号到时自动拾取方法

刘劲松, 王赟, 姚振兴 - 地球物理学报, 2013 - html.rhhz.net
本文讨论了用于微地震信号到时自动拾取的几种方法的原理及特点, 包括长短时均值比(STA/
LTA) 方法, AIC 方法, 基于高阶统计量偏斜度和峰度的PAI-S/K 方法等, 提出了移动时窗峰度的 …

Array signal processing on distributed acoustic sensing data: Directivity effects in slowness space

SP Näsholm, K Iranpour, A Wuestefeld… - Journal of …, 2022 - Wiley Online Library
Abstract Distributed Acoustic Sensing (DAS) involves the transmission of laser pulses along
a fiber‐optic cable. These pulses are backscattered at fiber inhomogeneities and again …

Evaluation of borehole hydraulic fracturing in coal seam using the microseismic monitoring method

N Li, L Fang, W Sun, X Zhang, D Chen - Rock Mechanics and Rock …, 2021 - Springer
Accurate evaluation of the influence range of borehole hydraulic fracturing (HF) in coal seam
is crucial for optimizing the design scheme of HF. In this study, we adopted the microseismic …

Multiband array detection and location of seismic sources recorded by dense seismic networks

N Poiata, C Satriano, JP Vilotte… - Geophysical Journal …, 2016 - academic.oup.com
We present a new methodology for detection and space–time location of seismic sources
based on multiscale, frequency-selective coherence of the wave field recorded by dense …

An improved method for hydrofracture-induced microseismic event detection and phase picking

F Song, HS Kuleli, MN Toksöz, E Ay, H Zhang - Geophysics, 2010 - library.seg.org
The ability to detect small microearthquakes and identify their P-and S-phase arrivals is a
key issue in hydrofracture downhole monitoring because of the low signal-to-noise ratios …

Acoustic emission source location monitoring of laboratory-scale hydraulic fracturing of coal under true triaxial stress

N Li, W Sun, B Huang, D Chen, S Zhang… - Natural Resources …, 2021 - Springer
Crack monitoring is an important issue in coal and rock hydraulic fracturing (HF). In this
study, we conducted experimental coal HF acoustic emission (AE) monitoring tests under …

An arrival time picker for microseismic rock fracturing waveforms and its quality control for automatic localization in tunnels

W Zhang, XT Feng, X Bi, ZB Yao, YX Xiao, L Hu… - Computers and …, 2021 - Elsevier
The accurate picking of waveform arrival times is fundamental to microseismic (MS)
monitoring technology and is related to the location accuracy of MS sources. An urgent …