many earthquakes occur in iran every year and some of these earthquakes cause loss of life and property. consequently earthquake is one of challenging topics not only in iran but also in other active tectonic regions in the world. investigating the mechanism of earthquake as a natural disaster is the first and important step. to study earthquakes, different information such as geometry and beha...

It is well known that motor current is a nonstationary signal, the properties of which vary with respect to the time-varying normal operating conditions of the motor. As a result, Fourier analysis makes it difficult to recognize fault conditions from the normal operating conditions of the motor. Time–frequency analysis, on the other hand, unambiguously represents the motor current which makes s...

[1] Recent, detailed examinations of fault zones show that walls of faults are often bordered by materials that are different from each other and from the more uniform material farther away. In addition, they show that the ultracataclastic core of mature fault zones, where slip is concentrated, is less permeable to flow across it than the adjoining material of the damage zone. Inhomogeneous sli...

The 2016 Kumamoto earthquake (Mw 7.0) occurred in the central part of Kyushu Island, southwestern Japan, on April 16, 2016. The mainshock triggered an event of maximum acceleration 700 gal that caused severe damage to infrastructure and thousands of homes. We investigate the source location of the triggered event, and the timing of large energy release, by employing the back-projection method f...

Ecological Interface Design (EID) is a theoretical framework for designing interfaces for complex human – machine systems . This article investigates the utility of EID in inducing ef fective real-time operator control performance during both normal and abnormal conditions . Two interfaces for a thermal-hydraulic process were compared , an EID interface based on physical and functional (P 1 F) ...

[1] We studied the anatomy of the fault system where the 2009L’Aquila earthquake (MW 6.1) nucleated by means of ~64 k high-precision earthquake locations spanning 1 year. Data were analyzed by combining an automatic picking procedure for P and S waves, together with cross-correlation and double-difference location methods reaching a completeness magnitude for the catalogue equal to 0.7 includin...

Extensional growth folds form ahead of the tips propagating normal faults. These can accommodate a considerable amount extensional strain and they may control rift geometry. Fold-related surface deformation also sedimentary evolution syn-rift depositional systems. Thus, by examining stratigraphic record, we constrain four-dimensional folds, which in turn provides record fault broader history. H...