in many seismological applications, the earth is considered as a perfectly elastic, homogeneous, and isotropic body. although this assumption is approximately valid, it is known that seismic waves pass through the real earth that is anelastic, inhomogeneous and anisotropic.  we consider four processes that can reduce wave amplitude, i.e.: geometrical spreading, scattering, multi-pathing, and an...

Existence of heavy minerals in waters in some regions causes serious environmental pollution and affects the soil and water resources quality. Soil and waters sensitive to pollutants were investigated in this research, based on the degree of sensitivity of their parameters. The samples obtained from industrial and agricultural areas for identifying water tables at higher risk and display region...

the main objective of this study was to investigate how months cluster in any thermal regions based on temperature. for this purpose, the mean of daily temperature data have been provided using 620 synoptic and climatology stations. then, mean temperature was converted for any station, based on solar calendar, and maps of mean daily temperature have been interpolated using kriging method. spati...

The morphometry of 187 cirques like forms is performed in the selected regions of Zagros Mountain with the use of GIS. The cirques like forms were delimitated manually and their headwall and floor boundaries were modified based on the classified slope map. The power law functions were fitted to 187 longitudinal cross-sections of the cirque like forms and their parameters were analyzed. All the ...

Aegyptianellosis is a disease caused by small intraerythrocytic inclusions which is restricted to the areaof Africa, Asia and extreme southern Europe. In this study the prevalence of Aegyptianella spp. wasevaluated in four genera of domestic poultry in the northern, southern and central regions of Lorestanprovince from April to September 2008. A total of 275 native adult birds including chicken...

as one of the influential groups in the incidents of the early centuries ah, khawārij appeared for the first time during the caliphate of imam ‘alī (a.s.) and in the process of the battle of ṣaffain as an independent cult that stood up in opposition to arbitration (ḥakamiyyat). upon the transfer of caliphate to the umayyad, the khawārij stood up against them from the very beginning and develope...