نتایج جستجو برای: passive seismic

تعداد نتایج: 106564  

2014
Nori Nakata Roel Snieder Michael Behm

S U M M A R Y Passive seismic methods using earthquakes can be applied for extracting body waves and obtaining information of subsurface structure. In this study, we retrieve direct and reflected plane waves by applying seismic interferometry to the recorded ground motion from a cluster of regional earthquakes. We apply upgoing/downgoing P/S wavefield decomposition, time windowing, and multidim...

2017
Chunquan Yu Yingcai Zheng Xuefeng Shang

We introduce an open-source MATLAB software package, named Crazyseismic, for passive seismic data preprocessing. Built-in core functions such as seismic phase travel-time calculation and multichannel cross correlation significantly improve the efficiency of data processing. Compared with conventional command-line-style toolboxes, all functions in Crazyseismic are embedded in one single graphic ...

2009
Haijiang Zhang Ping Wang Robert D. van der Hilst M. Nafi Toksoz Clifford Thurber Lupei Zhu

Citation Zhang, Haijiang et al. " Three-dimensional passive seismic waveform imaging around the SAFOD site, California, using the generalized Radon transform. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how th...

Journal: :Journal of Computational and Nonlinear Dynamics 2007

Journal: :Bulletin of the New Zealand Society for Earthquake Engineering 2000

In recent years, it is considerably attempted to develop the concept of energy dissipation as an applicable technology to overcome the energy released by earthquakes. The passive control systems such as metallic dampers have been widely considered. The dampers are basically used to mitigate the structural responses and reduce the damages in main structural elements by energy dissipation. ...

Pervasive construction of elevated liquid tanks as the most important sources for urban hygienic water, and their failure under earthquake, highlighs the necessity for research toward new passive control devices. Design and use of base-isolation systems for elevated liquid tanks is propounded as a novel seismic engineering technology. To date, no special examination has been discussed in relati...

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