Seismologists studying earthquake sources and the structure of the Earth’s interior commonly use event-based seismic data processing, with typical workflow including the acquisition, preprocessing, and analysis of data associated with one or more discrete seismic events. Until recently, most seismic event datasets were relatively small, including at most a few thousands or tens of thousands of ...

this paper examines differences in performances of a range of torsionally stiff and flexible single story buildings designed with the provisions of iranian standard 2800. seismic nonlinear dynamic time history behavior of eight building models subjected to seven horizontal bi-directional design spectra compatible ground motions are investigated. these models cover a wide range of very torsional...

2 Interest in the economic impact of Information and Communication Technology (ICT) investments is growing worldwide as governments seek new ways to spur growth. Moreover, investment decisions must undergo extra scrutiny in the current tough economic conditions. In 2010, Ericsson and Arthur D. Little conducted an in-depth study titled " Socioeconomic Impact of Broadband Network Investments, " w...

[1] We constrain the anisotropy associated with a very low velocity province (VLVP) at the base of the Earth’s mantle using the SKS and SKKS waves sampling the region. Our selected high-quality data sets consist of 415 SKS and 111 SKKS waveforms for 127 deep earthquakes recorded at distances between 90 and 150 by the seismic stations in three temporary broadband PASSCAL seismic arrays: the Kaap...

flow river forecasting plays an important role in designing, management, and utilization of water resources. the main object of the research is to study the possibility of forecasting and monitoring the northern karon rivers (armand and bazfat) discharge by using modern simulation methods. in this research, armand and bazoft discharge variations was investigated. in this regard, monthly data of...

any 3d seismic survey can have an acquisition footprint. acquisition footprint is an expression of the surface geometry (most common on land data) that leaves an imprint on the stack of 3d seismic data. often we recognize it as amplitude and phase variations on time slices, which of course display the amplitudes within our data set at a specified two way time (cordsen, 2004). on the other hand,...

Existing seismic instrumentation systems do not yet have the capability to recover the physical dynamics with sufficient resolution in real time. Currently, seismologists use centralized tomography inversion algorithm for which the data is gathered either manually from each station or by using limited number of expensive broadband stations. This scheme can take months to generate tomography and...