نتایج جستجو برای: dbsa
تعداد نتایج: 77 فیلتر نتایج به سال:
Although there appears to be a broad recognition of the key role that Public Sector Information (PSI) can play in the development of societies, there are still significant gaps in our understanding of how PSI is actually being utilized and of its wider societal value, especially in developing countries. The overarching goal of this dissertation was to analyze the PSI utilization process within ...
الکتروریسی متداول ترین، ارزان ترین و آسان ترین روش برای تولید نانوالیاف پلیمری ممتد و منفرد است. نانوالیاف رسانا دارای کاربردهای فراوانی در زمینه هایی همچون محافظ امواج الکترومغناطیس، ذخیره کننده های انرژی، حسگرها می باشند. پلی پیرول(ppy) یکی از پلیمرهای رسانا با خواص رسانایی الکتریکی بالا و فعالیت الکتروشیمیایی مطلوب است و جزء پلیمرهای سازگار با محیط زیست است. پلی پیرول دارای مساحت سطحی بالا. ...
This paper reports on trends and levels of capital inflows, and the volatility of such inflows, to a sample of 26 sub-Saharan African (SSA) countries over the period from 1970 to 1997. The data cover FDI and other private flows, debt flows for an aggregate comparison, and official development finance as the principal form of official inflows. For each type of inflow to each country, three alter...
چکیده ندارد.
A review is given of the academic and industrial aspects of the preparation, characterization, materials properties, crystallization behavior, melt rheology, and processing of polymer/layered silicate nanocomposites. These materials are attracting considerable interest in polymer science research. Hectorite and montmorillonite are among the most commonly used smectite-type layered silicates for...
Initially developed in the late 1970s for veterinary applications due to proposed growth-promoting effects in animals [5], meldonium has become an approved drug in selected Eastern European countries and is the subject of ongoing clinical trials focusing the compound’s anti-ischemic and cardioprotective properties [2, 3, 12, 15] as well as potential applications regarding diabetes, neurodegener...
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