نتایج جستجو برای: values are investigated using broadband iranian national seismic network center bin besides

تعداد نتایج: 7853039  

Journal: :JITR 2013
Qiuyan Fan

The Australian government has recognised the importance of broadband for their social and economic development. This paper provides an in-depth analysis of the impact of policy issues on broadband Internet access in Australia. This research has clearly indicated that the state of broadband Internet access is closely related to the Government’s policy and regulatory framework. The Government bas...

2015
Padideh Nasseri Michael A. Nitsche Hamed Ekhtiari

Padideh Nasseri, Michael A. Nitsche and Hamed Ekhtiari* 1 Neurocognitive Laboratory, Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran 2 Translational Neuroscience Program, Iranian Institute for Cognitive Sciences Studies (ICSS), Tehran, Iran 3 Department of Clinical Neurophysiology, University Medical Center, Georg-August-Universität Göttingen, ...

Journal: :فیزیک زمین و فضا 0
محمد رداد دانشجوی دکتری ژئوفیزیک، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران، ایران عبدالرحیم جواهریان استاد بازنشسته، گروه فیزیک زمین، مؤسسه ژئوفیزیک، دانشگاه تهران و استاد دانشکده مهندسی نفت دانشگاه صنعتی امیرکبیر، تهران، ایران

most geologic changes have a seismic response but sometimes this is expressed only in certain spectral ranges hidden within the broadband data. spectral decomposition is one of the methods which can be utilized to help interpreting such cases. there are several time-frequency methods including: short-time fourier transform (stft), continuous wavelet transform (cwt), wigner-ville distribution (w...

2007
Iván Ruiz Christopher M. Gifford

Among the technologies developed by NASA for space exploration, the TETwalker robot is one of the latest. NASA/Goddard Space Flight Center and CReSIS (Center of Remote Sensing of Ice Sheets) are proposing to adapt this technology for polar seismic data acquisition. In this paper, we discuss the design process for this project, explaining in detail each of the models created. This document summa...

Journal: :Journal of Telecommunications and the Digital Economy 2019

Journal: :Journal of Telecommunications and the Digital Economy 2017

1999
Joydeep Bhattacharyya Anne F. Sheehan Kristy Tiampo John Rundle

In this study, we analyze regional seismograms to obtain the crustal structure in the eastern Great Basin and western Colorado plateau. Adopting a forward-modeling approach, we develop a genetic algorithm (GA) based parameter search technique to constrain the one-dimensional crustal structure in these regions. The data are broadband three-component seismograms recorded at the 1994-95 IRIS PASSC...

2002
Monica D. Kohler Donna Eberhart-Phillips

[1] Uppermost mantle seismic structure below the Southern Alps in South Island, New Zealand, is investigated by teleseismic P wave travel time residual inversion. The three-dimensional tomographic images show a near-vertical, high-velocity (2–4%) structure in the uppermost mantle that directly underlies thickened crust along the NNESSW axis of the Southern Alps. The center of the high-velocity ...

B. Nikpoo, M. I. Khodakarami, S. Amini-Moghaddam,

This paper aims to obtain the optimal distance between the adjacent structures using Particle Swarm Optimization (PSO) algorithm considering structure-soil-structure systems; The optimization algorithm has been prepared in MATLAB software and connected into OpenSees software (where the structure-soil-structure system has been analyzed by the direct approach). To this end, a series of adjacent s...

2008
Egill Hauksson Patrick Small Katrin Hafner Robert Busby Robert Clayton James Goltz Tom Heaton Kate Hutton Hiroo Kanamori Jascha Polet David Wald

The California Institute ofTechnology (Caltech), the United States Geological Survey (USGS), and the California Department of Conservation, Division of Mines and Geology (CDMG) are completing the implementation of TriNet, a modern seismic information system for southern California. TriNet consists of two elements, the Caltech-USGS element and the CDMG element (Mori eta!., 1998). The CaltechUSGS...

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