it has been pointed out the static lateral response procedure for a base-isolated structure proposed in international building code (ibc) somewhat overestimates the seismic story force. that is why in the current paper, vertical distribution of base shear over the height of isolated structures considering higher mode effects under near field earthquakes is investigated. nonlinear behavior of is...

In volcanic environments, the correct interpretation of signals recorded by a seismic station is critical for determination internal state volcano. Those contain information about both source and properties path travelled wave. Therefore, understanding effect necessary inversions geophysical investigation volcanoes' at depth. We present an application adjoint methodology sensitivity kernel anal...

Near-Ðeld photocurrent spectra of high-power laser diode arrays with di†erent wave-guide characteristics are reported. Subwavelength spatial resolution is achieved by using a near-Ðeld Ðbre probe as the excitation source. The e†ect of the laser diode waveguide structure and of surface recombination processes on the near-Ðeld photocurrent image formation is discussed and analysed in terms of a b...

the investigation of this paper focuses on eastern part of shahroud fault system in middle-east alborz. this fault system is an important part in the seismotectonic map of the area. we used two local temporary dense seismological networks data installed around the fault system for several months during 2007 and 2008 and simultaneously micro-earthquakes data recorded by the permanent seismologic...