در این تحقیق، نمونه های هرباریومی موجود و نمونه های تازه جمع آوری شده متعلق به جنس carex sect. glandestinae مورد بازبینی قرار گرفتند. در بررسی نمونه ها carex pediformis subsp. pediformis به عنوان گزارش جدید از ایران معرفی می شود. خصوصیات مورفولوژیکی گونه مذکور، مقایسه این گونه با دیگر گونه های بخش sect. glandestinae به همراه کلید شناسایی گونه ها در این بخش ارائه شده است. در ضمن، پراکنش جغرافیای...

در این تحقیق، نمونه‌های هرباریومی موجود و نمونه‌های تازه جمع‌آوری شده متعلق به جنس Carex Sect. Glandestinae مورد بازبینی قرار گرفتند. در بررسی نمونه‌ها Carex pediformis subsp. pediformis به عنوان گزارش جدید از ایران معرفی می‌شود. خصوصیات مورفولوژیکی گونه مذکور، مقایسه این گونه با دیگر گونه‌های بخش Sect. Glandestinae به همراه کلید شناسایی گونه ها در این بخش ارائه شده است. در ضمن، پراکنش جغرافیای...

the caspian sea contains great resources of oil and gas. the caspian sea is a 700- mile- long body of water in central asia, land located between azerbaijan, iran, kazakhstan, russia and turkmenistan. iran was challenges and opportunities in the caspian region. key question in this thesis includes three section that first question, opportunities of iran in the caspian region, second question ch...

this thesis basically deals with the well-known notion of the bear-invariant of groups, which is the generalization of the schur multiplier of groups. in chapter two, section 2.1, we present an explicit formula for the bear-invariant of a direct product of cyclic groups with respect to nc, c>1. also in section 2.2, we caculate the baer-invatiant of a nilpotent product of cyclic groups wuth resp...

saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...

abstract : the purpose of this research is to study a bout multiple manifestations of poem music in hakim sanaee ghaznavi poems yherefore the first seetion of this book study and describes the complete works of this research about poem music love poem sanaee poem and this known and famous poets life and works the second section explained the external music of sanaee poems that for better u...

power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...