نتایج جستجو برای: energy

تعداد نتایج: 666269  

Journal: :journal of computer and robotics 0
toktam nikfarjam department of electrical, biomedical and mechatronic engineering, qazvin branch, islamic azad university, qazvin, iran karim afshar department of electrical, biomedical and mechatronic engineering, qazvin branch, islamic azad university, qazvin, iran

this paper demonstrates a method to how reserve capacity and cost allocation could be determined in a pool-based and disaggregated market model. the method considers both the spinning reserve and interruptible loads as the operating reserve services. in the proposed market, generators and consumers (including participation of interruptible loads) submit offers and bids to the independent system...

Journal: :journal of nutritional sciences and dietetics 0
kurosh djafarian department of clinical nutrition, school of nutritional sciences and dietetic, tehran university ofmedical sciences, tehran, iran and the division of obesity and metabolic health, rowett institute of nutrition and health, university of aberdeen, bucksburn, aberdeen,scotland, united kingdom and the institute of biological and environmental sciences, university of aberdeen,aberdeen,scotland,united kingdom john r-speakman department of clinical nutrition, school of nutritional sciences and dietetic, tehran university ofmedical sciences, tehran, iran and the division of obesity and metabolic health, rowett institute of nutrition and health, university of aberdeen, bucksburn, aberdeen,scotland, united kingdom joanne stewart department of clinical nutrition, school of nutritional sciences and dietetic, tehran university ofmedical sciences, tehran, iran and the division of obesity and metabolic health, rowett institute of nutrition and health, university of aberdeen, bucksburn, aberdeen,scotland, united kingdom diane m-jackson department of clinical nutrition, school of nutritional sciences and dietetic, tehran university ofmedical sciences, tehran, iran and the division of obesity and metabolic health, rowett institute of nutrition and health, university of aberdeen, bucksburn, aberdeen,scotland, united kingdom

ba ckground: although it is widely accepted that the pre-school age is a critical period  in  the  development of  obesity,  there  are  few  published data  on  factors contributing to variation of total energy expenditure in this age group.to investigate the contribution of body composition, gender and activity on total energy expenditure (tee) in pre-school children. m ethods: the total ener...

Journal: :jundishapur journal of health sciences 0
maryam pazoki department of environmental engineering, university of tehran, tehran, ir iran; department of environment, university of tehran, tehran, ir iran. tel: +98-9123186604, fax: +98-2166479469 reza maleki delarestaghi department of environmental engineering, university of tehran, tehran, ir iran mohammad reza rezvanian department of environmental engineering, university of tehran, tehran, ir iran reza ghasemzade department of environmental engineering, university of tehran, tehran, ir iran peyman dalaei department of environmental engineering, university of tehran, tehran, ir iran

results the modeling results showed that for the gas recovery starting in 2000 and 2015, the power generation would be 2,354 and 830 mw, respectively. in fact, the 15-year difference in gas extraction made a 200% difference. based on the results, from 2000 to 2100, 558 m3/hour of methane would be extracted, which would be equivalent to 2,354 mw energy. subsequently, the emission of 93,721,837 t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده مدیریت و اقتصاد 1390

هدف از این مطالعه بررسی ارتباط بین مصرف انرژی و رشد اقتصادی در کشورهای عضو اوپک طی دوره زمانی 2009-1995 می باشد. در این مطالعه برای بررسی ارتباط کوتاه مدت از الگوی خودرگرسیون برداری و برای رابطه بلند مدت از آزمون هم جمعی یوهانسن و الگوی تصحیح خطای برداری استفاده شده است. نتایج به دست آمده نشان دهنده آن است که در کوتاه مدت مصرف انرژی با رشد اقتصادی در کشورهای عضو اوپک رابطه مثبت و البته غیر معنا...

Journal: :international journal of environmental research 0
l. buzzigoli dipartimento di statistica “g. parenti”, university of firenze, italy a. viviani dipartimento di statistica “g. parenti”, university of firenze, italy

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...

Journal: :مهندسی بیوسیستم ایران 0
محمد منافی دستجردی دانشجو امیر لاری دانشجو/دانشگاه آزاد واحد علوم تحقیقات تهران

the our purpose of objective is evaluation and comparison the energy flow in wheat lands of cities in alborz province. we try to calculate the indexes of energy ratio, gross energy, specific energy, energy efficiency, energy intensity, total input and output energy. population of the study consisted of farmers of cities in alborz province in the year of 1391-92. it was a best way that we use po...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2010
naser hosseini elham tavakoli dinani

background & aim: energy is one of important debates in agriculture ecology and for this reason; the ratio of output and input energy in different agriculture ecosystems has been calculated. if one can reduce, input energy level into farms through the indices like poisons, fertilization, tractor energy and lab our force. in addition to the net income of the farmers, this issue would play a ...

Journal: :international journal of energy and environmental engineering 2011
satoru okamoto

this paper describes a study that starts with an analysis of typical energy demand profiles in a hospital setting followed by a case study of a combined cooling, heating, and power (cchp) generation system.cchp is an autonomous system that combines the generation of electrical, heating, and cooling energy.the driving units are two high-efficiency gas engines that produce electrical and heat ene...

Journal: :space ontology international journal 0
mehrdad mazloomi assistant professor of faculty member architecture and urban planning, qazvin branch, islamic azad university, qazvin, iran azin farzam m.s. student, architecture and urban planning, qazvin branch, islamic azad university, qazvin, iran

the remarkable development of sciences and technologies in the world of]o today has apparently brought mankind comfort and well-being, but it has also created new problems for humans including environmental pollution, widespread changes in world weather conditions, etc. fossil fuels cause numerous environmental pollutions. in other words, on the one hand poisonous gases enter the environment fo...

Journal: :محیط شناسی 0
سحر ثقفی دانشجوی دکتری دانشگاه تهران ناصر مهردادی استاد دانشکده محیط زیست دانشگاه تهران غلامرضا نبی بیدهندی استاد دانشکده محیط زیست دانشگاه تهران حسن امینی راد استادیار دانشکده عمران گرایش محیط زیست دانشگاه صنعتی نوشیروانی بابل

introduction in the wastewater treatment industry, the general attentionis mostly paidto the effluent quality standards. regardless of energy consumption, the treatment plants have been designed based on experience rather than the latest scientific findings.the treatment plants are considered as a part of energy equipment which largely consumed electrical energy.thus, electricity is the great p...

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