Abstract—Finding the linear and nonlinear responses of a typical single-degree-of-freedom system (SDOF) is always being regarded as a time-consuming process. This study attempts to provide modifications in the renowned Newmark method in order to make it more time efficient than it used to be and make it more accurate by modifying the system in its own non-linear state. The efficacy of the prese...

We introduce here the Earthquake Network project which implements a world-wide smartphone-based sensor network for the detection of earthquakes. Thanks to the accelerometric sensor, smartphones possibly detect the waves of a quake and report the event to a cloud computing infrastructure. In this work, we propose a solution to the detection problem based on statistical modelling the arrival time...

Ajalugu saab ja peab tegema ka ilma matemaatiliste meetoditeta. Kuid mõnes mõttes tundub mulle ajaloolane, kes kaasajal ei taha kasutada neid meetodeid, umbes inimesena, tahab sõita Moskvasse. otsustab mitte Estoniaga1, vaid võtab kepi kätte hakkab jala minema… (Juhan Kahk 1988 [1980]) „Eile tabas meie linna selline rahetorm, millist mäleta […]

the sorkh shale formation (lower triassic) crops out in parts of tabas block. this formation is composed of limestone, dolomite, sandstone, shale and gypsum. its lower contact with the permian rocks and its upper contact with the shotori formation is marked by distinct erosional unconformity. to determine the depositional environments of the sorkh shale formation, stratigraphic sections of goda...

Performance of structures during recent earthquakes shows that the effect of vertical component of earthquake (VCE) could be considered as one of the main causes of bridges collapse. In most of bridge design codes, for seismic analysis of bridges, VCE is not taken into account or a distinguished method isn’t presented for assessment of VCE. In the present work, the effect of VCE on two existing...

in this experiment, the chemical composition of the essential oils obtained from ferula assa-foetida oleo-gum resin collected from two different sites of yazd province (tabas and yazd) in the center of iran, were identified. the gas chromatography mass-spectroscopy (gc/ms) data showed that the qualitative composition of the components appeared to be constant in two different regions. moreover, ...

accurate mapping of geological structures play an important role in the land management, some of which are considered as the origination of wind deposits, dust and aerosols. during the last decades, remote sensing has considerably helped the studies of desert areas especially in change detection of land phenomena. this study aims to study the facies morphology of playa in tabas kavir, based on ...