نتایج جستجو برای: changes in energy consumption

تعداد نتایج: 17159678  

The realization of sustainable development depends on the efficient use of energy resources. Energy consumption productivity and efficiency are among important indices that play a critical role in explaining the behavior of energy consumption structure of different economic sectors, which in turn, plays a key role in policy making. From among economic sectors, the agriculture sector, as an impo...

Journal: :اقتصاد و توسعه منطقه ای 0
مجید آقایی مهدیه رضاقلی زاده

this paper surveys economic growth and energy consumption relationship by new econometric methods in different sectors of iran. this study uses panel error correction model and panel co integration and causality tests to investigate short run and long run relationship between energy and value added growth in different sectors of iran’s economy with regards to energy price in the time period of ...

Journal: :معماری و شهرسازی آرمان شهر 0
peyman khodabakhsh phd. candidate of urban and regional planning in technical university of berlin (tu-berlin), institute for urban and uegional planning, berlin, germany. samira mashayekhi phd. candidate of urban and regional planning in technical university of berlin (tu-berlin), institute for urban and regional planning, berlin, germany. behzad malekpour asl phd. candidate of urban and regional planning in shahid beheshti university, tehran, iran.

cities are a focal point of energy consumption. accessibility to public services has a significant impact on the balance of public and private energy uses, which are two sectors that are directly affected by urban planning (the third is industrial). this paper establishes the relative magnitudes of service accessibility enhancement on urban energy efficiency in comparison to other factors, and ...

Journal: :مهندسی بیوسیستم ایران 0
رضا اسفنجاری کناری دانشجوی دکتری اقتصاد کشاورزی، دانشگاه زابل مهدی شعبان زاده دانشجوی دکتری اقتصاد کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران پریناز جانسوز دانشجوی دکتری اقتصاد کشاورزی، دانشکدۀ کشاورزی، دانشگاه زاهدان احمد امیدی دانشجوی دکتری مکانیک ماشین آلات کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

with the increasing world population and limitations on arable land, increasing the yield per unit is one of alternatives human food supply. greenhouse cultivation as one ways of increase the performance can arrive this purpose. but the energy restriction of another human challenges, so that increase the performance without considering energy consumption almost appears to be meaningless. due to...

2014
Hualin Xie Guiying Liu Peng Wang

The changes of spatial pattern in energy consumption have an impact on global climate change. Based on the spatial autocorrelation analysis and the auto-regression model of spatial statistics, this study has explored the spatial disparities and driving forces in energy consumption changes in China. The results show that the global spatial autocorrelation of energy consumption change in China is...

Journal: :تحقیقات اقتصادی 0
حمید آماده دانشگاه علامه طباطبایی مرتضی قاضی زهره عباسی فر

energy as an important production factor has significant effects on economic growth. identifying the relationship between energy and economic growth can help to improve governmental energy policies. applying ardl and ecm methods, this paper examines the longrun and shortrun causality relationships between (1) energy consumption and economic growth and (2) energy consumption and employment in va...

2010
Andrew Jensen Ko Michal Young James H. Andrews Brian P. Robinson Mark Grechanik

We present a tool that, using a team's existing test cases, performs repeated measurements of energy consumption based on instructions executed, objects generated, and blocking latency, generating a distribution of energy use estimates for each test run, recording these distributions in a time series of distributions over time. Then, when these distributions change substantially, we inform the ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
R G Shulman D L Rothman F Hyder

Focal changes in the cerebral metabolic rate of glucose utilization (CMRglc) are small (10-40%) during sensory activation in awake humans, as well as in awake rodents and primates (20-50%). They are significantly larger (50-250%) in sensory activation studies of anesthetized rats and cats. Our data, in agreement with literature values, show that in the resting anesthetized state values of CMRgl...

Journal: :Journal of Architecture and Planning (Transactions of AIJ) 2002

گودینی, کاظم , آذریان, قاسم , باقی, امیر , عطافر, زهرا , معصومی, زینب ,

Introduction & Objective: Common methods for dewatering of wastewater sludge need chemi-cals and high energy consumption and have low efficiency and environmental acceptability because of colloidal and jelly property of bacteria cells of sludge. Furthermore, their operat-ing is completely complicated. In this study electro-flotation way, as a novel method, was performed to cover these limitatio...

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