نتایج جستجو برای: ngl
تعداد نتایج: 213 فیلتر نتایج به سال:
The NGL refinery of the Sirri Island has a major role in the production of high-value products. One of the most important refinery units is the demethanizer unit, comprising of a complex network of distillation towers and heat exchangers. In the first step, using the Aspen Hysys software, a proper steady state model was developed for this unit in which the simulation of the main equipment that ...
OBJECTIVE The hypothalamic-pituitary-adrenal (HPA)-axis is the most important neuro-endocrine stress response system of our body which is of critical importance for survival. Disturbances in HPA-axis activity have been associated with adverse metabolic and cognitive changes. Humans enriched for longevity have less metabolic and cognitive disturbances and therefore diminished activity of the HPA...
Wildfires and their emissions have significant impacts on ecosystems, climate, atmospheric chemistry, and carbon cycling. Well-dated proxy records are needed to study the long-term climatic controls on biomass burning and the associated climate feedbacks. There is a particular lack of information about long-term biomass burning variations in Siberia, the largest forested area in the Northern He...
Forestry, geology, and water resource applications were the focus of this study, which involved the use of compu~er-implemented pattern-recognition techniques to analyze ERTS-l data. The results have proven the value of computer-aided analysis techniques t even in areas of mountainous terrain. Several analysis capabilities have been developed during these ERTS-l investigations. A procedure to r...
I n a r ecent seminal paper , Gi bs on and Wexl er ([1], GW) t ake i mpor t ant s t eps t o formal i zi ng t he not i on of l anguage l ear ni ng i n a ( ni t e) s pace whos e gr ammar s ar e char act er i zed by a ni t e number of parameters. One of t he i r ai ms i s t o char act er i ze t he compl exi t y of l ear ni ng i n s uch s paces . For exampl e , t hey demons t r at e t hat even i n ...
حدود سه دهه است که کشور های صنعتی جهان ، استفاده از روش تکنولوژی پینچ را در طراحی سایت های کارخانه ها و شرکت هایی که مصرف انرژی حرارتی و سوختی بالایی دارند ،در دستور کار قرار داده اند. که البته در کشورهای جهان سوم نیز اقداماتی شده است ولی هنوز به جایگاه اصلی خود نرسیده است. با استفاده از این تکنولوژی نسبتا نوین ، میزان مصرف انرژی را که به صورت یوتیلیتی های سرد و گرم مصرف می شود می توان به میزان...
Seok-Kyu Kwon, Jooyeon Woo, Soo-Young Kim, Hyun Kim, and Eunjoon Kim From the National Creative Research Initiative Center for Synaptogenesis, Department of Biological Sciences, and Department of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon 305-701 and the Department of Anatomy and Division of Brain Korea 21 Biomedical Science, College of Medicine, Kor...
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