نتایج جستجو برای: Energy Production Factor

تعداد نتایج: 1975515  

Journal: :اقتصاد و توسعه کشاورزی 0
سیدنعمت الله موسوی ذکریا فرج زاده فرزانه طاهری

energy is considered as an important input for agricultural products. a decrease in energy subsidy and its demand reduces agricultural outputs and raises the production costs. changes in production and costs may significantly affect welfare of the agricultural producers. the main objective of this study was to analyze the impact of increased energy prices (reduction in the subsidy) on the agric...

Journal: :تحقیقات اقتصادی 0
سعید صمدی دانشگاه اصفهان علیمراد شریفی دانشگاه اصفهان عزیز احمدزاده آزاد خانزادی

one of the most important issues about production structure and measurement of factors utilization in industry is the study of substitutability among the production factors. while, energy, for its particular features like finite and the direct relationship between energy usage and air pollution; and specifically abundance of energy resources and allocation of subsidies to different energy carri...

Journal: :تحقیقات اقتصادی 0
حسن درگاهی دانشیار دانشکدۀ علوم اقتصادی و سیاسی، دانشگاه شهید بهشتی کاظم بیابانی خامنه کارشناس ارشد اقتصاد انرژی، دانشگاه شهید بهشتی

the main goal of this study is to identify the determinants of the energy intensity in the iranian economy using annual data for the period 1974-2012. changes in energy intensity can be seen as related to three factors including price, income, and autonomous energy efficiency improvements (based on technical progress). moreover the role of energy quality in enhancement of total factor productiv...

Journal: :international journal of smart electrical engineering 0
samaneh pazouki young researchers and elite club, tehran south branch, islamic azad university, tehran, iran mahmoud-reza haghifam tarbiat modares university

in this paper, an attempt has been made to introduce a new control strategy including plug-in hybrid electric vehicle (phev) and diesel engine generator to control the voltage and frequency of autonomous microgrids. the proposed control strategy has multiple advantages over the recent control methods in microgrids. the proposed method applies the primary and secondary frequency control strategy...

Journal: :international journal of environmental research 0

in iran the mainstreaming tool for integrating environmental concerns into energy sector is an energy-environment review (eer-iran). this paper comprises: (i) an analysis of the current situation with regards to energy production and consumption; (ii) an evaluation of the growth prospects with regard to energy production and consumption; (iii) the identification of environmental issues induced ...

قاسم نژاد ملکی, حیدر محمد, نصیریان, نیما, کج‌بافیان, حسین,

In order to determine and evaluate the mechanization indices, including energy and economic, in production of greenhouse cucumber and tomato, a study was carried out using sequential design- factorial with three replications in Khuzestan province, Iran, during 2011-2012. The greenhouse structures and production methods in all the systems were similar. The evaluated treatments included two culti...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده معماری و شهرسازی 1393

چکیده نمایشگاه های جهانی یا اکسپو عنوانی ست که از سال 1851 میلادی در لندن توسط همسر ملکه انگلستان شکل گرفت ، هدف اولیه این نمایشگاه ها نمایش دستاورد های صنعتی بود، اما در طول 165 سال که این نمایشگاه های برگزار گردیدند ، رویکرد آنها تغییر کرده است . در هر دوره به یک شعار که در واقع دغدغه اصلی جهان، در آن زمان بوده است ، پاسخ داده شده و راه حل کشور های مختلف در مورد آن موضوع به نمایش گذارده شد...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1394

with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...

Journal: :international journal of agricultural management and development 2012
ali bagherzadeh fatemeh kazemzadeh

sunflower is one of four main annual oil plants that cultivated in oil and nut varieties. this plant as an important and industrial food product and because of nutritional features and the potential for earning exchange has become a valuable product in foreign and inner markets and has a special position in agricultural sector. khoy, by producing 40 percent of sunflower productions of country a...

Energy plays a significant role in today's developing societies. The role of energy demands to make decisions and policy with regard to its production, distribution, and supply. The vital importance of energy, especially fossil fuels, is a factor affecting agricultural production. This factor has a great influence on the production of agricultural products in Iran. The forecast of the con...

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