نتایج جستجو برای: opec
تعداد نتایج: 452 فیلتر نتایج به سال:
The oil price and the real effective exchange rate (REER) are two important variables affecting OPEC countries politics and economy. Despite the fact that the existing theoretical literature confirms the relationship between oil price and the exchange rate (Dollar), there is no consensus about the direction of causality between these two variable. Also, statistical data shows that there is a sy...
بررسی تاثیر درآمد بر کیفیت زیست محیطی یکی از بحث های مهم در دهه 1990 بوده است. بسیاری ازمطالعات شیوه های مختلفی را برای تحلیل رابطه این دو با استفاده از شیوه های مختلف سنجش آلودگی ها و درآمد بکار گرفته اند. آنچه که امروزه مورد تایید بیشتر مطالعات بوده رابطه عکس u شکل بین درآمد و انتشار آلودگی ها یا کاهش کیفیت زیست محیطی می باشد. با توجه به این امر ، در این مقاله با استفاده از اصول اقتصاد خردی ،...
This paper proposes a partial equilibrium model to describe the global crude oil market. Pricing on the global crude oil market is strongly influenced by price indices such as WTI (USA) and Brent (Northwest Europe). Adapting an approach for pool-based electricity markets, the model captures the particularities of these benchmark price indices and their influence on the market of physical oil. T...
The hybrid process of seawater desalting couples the reverse osmosis with the multi-stage flash process. The hybrid process is usually planned to improve the performance of MSF and reduce the cost of desalted water. Most of the studies on these plants refer to the parameters (both technical and economical) that have been obtained in the countries where desalination processes are in common use. ...
OBJECTIVE To assess the outcome of children older than one year with neuroblastoma treated at King Abdul-Aziz Medical City, Jeddah, Kingdom of Saudi Arabia. METHODS We retrospectively reviewed the files of 52 children older than one year with neuroblastoma (NBL) treated at our center between September 1987 and May 2003. Treatment consisted of OPEC chemotherapy regimen (vincristine, cisplatin,...
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