<p>Photovoltaic (PV) systems are becoming increasingly popular; however, arc faults on the direct current (DC) side more widespread as a result of effects aging well trend toward higher DC voltage levels, posing severe risk to human safety and system stability. The parallel present level compared with series faults, making it difficult spot arc. In this paper for aim condition monitoring,...

NOTICE The issuance of this Report does not constitute an endorsement of any proposed amendment and in no way implies Listing, Classification, or other recognition by UL and does not authorize the use of UL Listing or Classification Marks or any other reference to Underwriters Laboratories Inc. on, or in connection with, the product. Underwriters Laboratories Inc., its employees, and its agents...

For large earthquakes occurred at and around plate boundaries, we examined relations between seismic moment M 0 , fault length L, fault width W and average fault slip D, and found the following scaling laws. For interplate strike-slip events, the well-known L-cubed dependence of seismic moment M 0 breaks when L exceeds 30 km, and D and M 0 increase with L as D = L==(L+) and M 0 = WL 2 =(L +), r...

abstract: the aim of this study is analysis of drainage basins neotectonic in the north slope of bozqoosh mountains by geomorphological methods. to attain this aim, it used of field observation, areal photographs and five geomorphic indexes in 20 basins of the north slope of bozqoosh mountains. indexes were calculated by topography maps (1: 50000), geological maps (1: 100000) and areal photogr...