نتایج جستجو برای: section of energy sector

تعداد نتایج: 21263348  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

In the energy economics literature, one of the most important approaches to managing energy demand is to improve energy efficiency, which is associated with a concept called a rebound effect. The rebound effect causes the energy saving (due to improved efficiency) to be less than expected. Considering the importance of using oil products in the Iranian economy, the present paper tries to track ...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
نادر مهرگان دانشیار دانشکدۀ اقتصاد و علوم اجتماعی، دانشگاه بوعلی سینا، همدان ابراهیم فرجی کارشناس ارشد دانشکدۀ اقتصاد و علوم اجتماعی، دانشگاه بوعلی سینا، همدان

among investments in different sections of economy, investment in agriculture is great importance. in addition to increasing production and job opportunities in agriculture, investment in this section will help to increase these in other sections as well, due to back and front relations with other economic activities. due to the fact that investment does not yield rapidly, and it takes some tim...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
حمیدرضا میرزایی خلیل آبادی دانشگاه شهید باهنر کرمان زهره احمدی دانشگاه شهید باهنر کرمان

in regard to both implementation of the second phase of targeted subsidises and the effect of inflation resulted from first phase of it on economic of country, inflation content estimation on economic of country especially agriculture sector is necessary. in this research effect of increasing price of energy carriers on inflation in various reproduction sectors such as agriculture was investiga...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم 1391

in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...

پایان نامه :0 1374

chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...

In recent years, the issue of energy consumption modeling techniques in the building sector has been widely considered by researchers and managers. Researches indicate that energy consumption in residential sector is one of the main parts of the total consumption. Moreover, the urban residence is supposed as a significant consumer of energy in every country and therefore a focus for energy cons...

Mahdi Keramatfar Nader Mehregan

According to international trade theories, countries attempt to produce and export commodities with their abundant resources. Iran has great energy resources and availability of inexpensive energy input has increased energy consumption per capita in manufacturing sector as well as in consuming sector. Relying on low energy price, manufacturers employ energy-intensive methods for producing and e...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...

Journal: :desert 2014
zahra barzegar sh. heidari

energy consumption in the residential sector is a complex socio-technical problem that can be explained using acombination of physical, demographic and behavioural characteristics of a house and its occupants. in this paper, byusing the energy consumption data for the residential sector of shiraz in iran, the effect of built area (ba) andoccupant number (occ) on annual energy consumption (ec) w...

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