in this research, first was identified suitable regions (considering ecological indexes) for intensive and extensive outdoor recreation and their various degrees using the usual tourism ecological model and applying gis. results showed that 297.223 hectares of park area have class 1 of extensive outdoor recreation potential, 86.465223 hectares class 2 of extensive outdoor recreation potential, ...

the experiment was aimed to study the chemical constituents of essential oils from two pimpinella l. species including p. deverroides - boiss, and p. tragium vill. growing wild in iran. to do this, the essential oil of fruits of two p. tragium populations (sefidkhani and hesar, markazi province, iran) and one population of p. deverroides (kerend, kermanshah province) were extracted by a cleveng...

The Alborz mountain range in northern Iran is part of the active and seismic Alpide belt, where assessing hazards crucial due to region’s history large instrumental earthquakes destructive background. Moment rate estimation, which quantifies tectonic activity, offers a novel approach understanding energy potential regions. In this study, regional perspective employed investigate maximum horizon...

one dimension approach for management has been resulted in many challenges in order to sustainable policy. network governance and ultra-structure insight implication could remedy some of challenges of sustainable development. the aim of this paper is analysis of institutional network with co-management of sorkheh hesar national park in tehran province. quantitative approaches are used for this ...

background pediculosis and scabies are infectious diseases that can spread easily in overcrowded places, like prisons. the aim of this study was to determine the prevalence of these diseases in ghezel hesar prison (a male prison). materials and methods for this descriptive study, 1404 prisoners in ghezel hesar prison were included. the prisoners were evaluated clinically by two experienced derm...

during 2004-2005, a faunistic study was carried out on the edaphic mites in sorche-hesar forest park of tehran. a total of 14 species belonging to 10 families were collected and identified, of which four species, viz. iphidozercon corticalis evans, dendrolealaps populi walker, holaspina alstoni evans and rhodacarellus silesiacus willmann, are new records for iran.

Earth dam is a structure as homogeneous or non-homogeneous forms for raising water level or water supply. Earth dam consist of different parts that one of the main parts is clay core. Choosing an optimal non permeable core which causes reduction of seepage through dam body and also being stable is necessary. The objective of this research is to optimize the geometry of earth dam clay core such ...