نتایج جستجو برای: energy production

تعداد نتایج: 1218126  

Journal: :international journal of environmental research 2013
l. buzzigoli a. viviani

the paper presents an analysis of both energy intensity and energy demand for the italianindustrial sector. the aim of the paper is twofold: making a decomposition of energy intensity at the aggregate level and modeling energy demand at the firm level. the decomposition of energy intensity shows different patterns for the different sub-sectors in the period of interest. in the micro approach, p...

Iran is a developing country with a population of over 80 million. The total daily MSWs production in Iran is about 50 million kg. Most of the MSWs in this country is being disposed of in the landfills. Some of the landfills are located in the urban area or near to sea, river, and forest. In this regard, the management of MSWS becomes a concern in Iran. One solution to manage MSWs and mitigate ...

Journal: :international journal of smart electrical engineering 2013
mohammad sarvi mohammad parpaei

nowadays the position of the renewable energy is so important because of the environment pollution and the limitation of fossil fuels in the world. energy can be generated more and more by the renewable sources, but the fossil fuels are non-renewable. one of the most important renewable sources is the wind energy. the wind energy is an appropriate alternative source of fossil fuel. the replacem...

Journal: :Energies 2023

The topic of this Special Issue, “Energy Security and the Transition toward Green Energy Production”, acquired an uncomfortable timeliness while it was still in progress [...]

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - پژوهشکده علوم محیطی 1389

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده علوم پایه 1393

در این تحقیق اثر الکترونگاتیوی برای استخلاف های f, cl, no2 , cf3 برروی آروماتیسیته مولکول بنزن مورد مطالعه قرار گرفته است. nics, ase, homa, homo-lumo energy gapsشاخص هایی هستند که برای نمایش تاثیر استخلاف ها به کار برده می¬شوند.علاوه بر این الکترون های انتقالی توسط پیوند سیگما وپای نیز برای همه مولکول های استخلاف شده مورد نظر محاسبه شده¬اند.نتایج بدست آمده برای این روش ها با یکدیگر متفاوت است.ب...

Journal: :Energies 2023

A number of measures to diversify its energy supply sources and reduce dependence on imported has been taken by the EU. These include pursuing new sources, such as renewable liquefied natural gas; increasing storage capacities; investing in interconnectors other infrastructure. However, these actions require long-term adjustment, while there is a need find an option meet needs at moment. One po...

Ali Jafari, Asadolah Akram Fatemeh Almasi Hadi Afazeli Mosen Nosrati

During the past few years, modeling in agriculture has attracted considerable attention. New modeling methods including neural networks are employed in various industries, and it is necessary that their use in agriculture be also considered. This research addressed the trend of energy use in broiler farms in Alborz Province and sought to model the trend of energy consumption and production in t...

Journal: :تولیدات دامی 0
امید وثوق شریفی دانشجوی کارشناس ارشد گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران، پاکدشت اکبر یعقوب فر دانشیار بخش تغذیه و فیزیولوژی، مؤسسه تحقیقات علوم دامی کشور، کرج - ایران سید داود شریفی استادیار گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران، پاکدشت - ایران (نویسنده مسئول مکاتبات *) قدرت اله میرزاده استادیار مرکز تحقیقات جهاد کشاورزی استان هرمزگان، بندرعباس - ایران فیروز عسکری کارشناس ارشد مرکز تحقیقات جهاد کشاورزی استان هرمزگان، بندرعباس - ایران

this study was conducted to determine the nutritional value of seaweed gracilariopsis persica and to evaluate its utilization in layer nutrition. metabolizable energy and chemical composition of seaweed were measured. 100 hy-line w-36 hens were allocated to five dietary groups with five treatment group (experimental diets containing zero, five, 10, 15 and 20 percent seaweed) and it lasted for 1...

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