نتایج جستجو برای: caspian

تعداد نتایج: 3633  

Journal: :Energies 2021

The Caspian Sea is a region of active hydrocarbon production, where apart from conventional accumulations, gas hydrates (GH) are known to exist. GH potential future source energy, however, currently they pose danger for development fields. goal this research was determine the area distribution and thickness their stability zone in using numerical modeling define how certain parameters affect ca...

Journal: :caspian journal of environmental sciences 2010
a. nasrollahzadeh

caspian sea is the largest enclosed body of water on the earth. since the collapse of soviet union in 1991 and discovering large oil and gas fields, some issues such as political, economic and environmental events, made the caspian sea important. the ecology of the sea are being endangered due to several issues such as petroleum extraction, river and sea pollutions, water level rise, biological...

2003
Mikiyasu Nakayama

It is a known fact that, world wide, there are more than 200 international water systems and that some 60 per cent of the global population resides within such systems. This has important implications for international security of these water systems and the people dependent on them. With this in mind, the United Nations University (UNU), within the framework of the environmentally sustainable ...

2006
V. I. Kravtsova E. A. Baldina

The most common way of satellite images use for dynamics investigation relies on separate interpretation or computer classification of multitemporal images with subsequent matrix comparison of classification results for changes discovering. These procedures are rather complicated and time-consuming. As a method convenient for everyday efficient image analysis we suggest method of changes determ...

1999

The geopolitical importance of the Caspian region does not stem solely from its energy potential. Whether or not the area emerges as a major energy producer, its central geographical location, the considerable potential for regional instability and internal and interstate conflict, and the competition among external powers for influence all suggest that events in the region will shape the balan...

2017
Olga Vasilyeva Vladimir Musatov

The Pricaspian Depression in the southeast of the East European Platform is one of the deepest depressions formed over the Baikal folded basement. The sedimentary cover consists of four structural levels corresponding to the major stages of its formation. The Riphean and the Vendian beds constitute the first structural level. The second one comprises deposits from the Devonian to the Upper Tria...

2017
R.S.E.W. LEUVEN A. J. HENDRIKS M.A.J. HUIJBREGTS H.J.R. LENDERS J. MATTHEWS G. VAN DER VELDE

This paper describes the effects that temperature changes in the Rhine river distributaries have on native and exotic fish diversity. Site-specific potentially affected fractions (PAFs) of the regional fish species pool were derived using species sensitivity distributions (SSDs) for water temperature. The number of fish species in the river distributaries has changed remarkably over the last ce...

Journal: :مطالعات اوراسیای مرکزی 0
مجتبی دمیر چی لو

abstract: after the collapse of the soviet :union:, and the geopolitical changes in the region, which caused emergence of four new states, the outlook to the caspian sea and it's issues have changed. dealing with numerouse oil contracts with multinational companies and the entrance of transnational states and organizations, aggrevated the political and economic competitions and increased t...

Journal: :تحقیقات دامپزشکی 0
سسیدمهدی قمصری گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران سید مهدی قمصری گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران محمد مهدی دهقان گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران محمدرضا آقچه لو گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران

in this study, in vitro growth characteristics of fibroblasts of metacarpal region of horses and caspian miniature horses were evaluated. under general anesthesia and aseptic condition, a full thickness skin incision was created on the lateral aspect of mid-third of left metacarpal region of 4 mixed thoroughbred horses and 4 caspian miniature horses and 3 grams of subcutaneous tissue was harves...

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