نتایج جستجو برای: energy systems

تعداد نتایج: 1760276  

M. Monemzadeh, N. Tazimi P. Sadeghi-Alavijeh

In this paper, using Monte Carlo Fortran code, we have obtained the binding energies for three different systems of diquark–antidiquark in distances from 0.01 to 15 nm. In [0.1 - 15] nm interval, we made use of Coulomb potential because in this interval, strong interaction is negligible. We have compared the binding energies of the systems with one another. The results of these comparisons...

Journal: :تحقیقات مهندسی کشاورزی 0
حمیدرضا سالمی استادیار بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان

administrative regulations for water flow decrease distribution efficiency and effect the economical operation of irrigation networks. complications in distribution systems and the decrease in availability of water require study of the hydraulic performance of existing flow control structures. control systems designed by neyrpic (zayandeh rud network) and usbr (doroodzan network) were investiga...

Journal: :Medicinski pregled 2015

Journal: :Energy Procedia 2013

Journal: :International Journal of Energy Research 1978

Journal: :Journal of Solar Energy Engineering 1987

Alireza Noorpoor, Amir Ghasemi Nasim Hashemian Parisa Heidarnejad

Integrated energy systems utilizing renewable sources are sustainable and environmentally substitutes for conventional fossil-fired energy systems. A new multigeneration plant with two inputs, such as biomass and solar energy, and four useful outputs, such as cooling, heating, power, and distilled water, is presented and investigated in this paper. The proposed system includes evacuated tub...

Journal: :journal of chemical and petroleum engineering 0
hossein ahamdi danesh-ashtiani islamic azad university of south tehran branch. hamid abdollah-zargar islamic azad university of south tehran branch.

utilization of fossil fuel for supplying of requires energy of desalination systems is common. on the other hand, solar energy is one of the high-grade energies in the world that can be found specifically in hot weather places. therefore, utilization of solar energy for operation of desalination systems will reduce greenhouse gases and is a good alternative way. common exergy analysis method (s...

Journal: :مهندسی بیوسیستم ایران 0
علیرضا امانلو دانشجوی کارشناسی ارشد، دانشکده مهندسی و فناوری پردیس کشاورزی و منابع طبیعی حسن قاسمی مبتکر دانش آموخته کارشناسی ارشد، پردیس کشاورزی و منابع طبیعی اسداله اکرم استادیار، پردیس کشاورزی و منابع طبیعی علی محمدی دانشجوی دکتری، پردیس کشاورزی و منابع طبیعی

efficient energy use in agriculture sector is one of the prerequisites to sustainable agriculture, because it allows financial savings, fossil resources preservation along with decreasing trend of air pollution. this research was conducted at the agricultural research field of zanjan university to determine the level of input energy in different tillage systems in forage maize production when i...

2012
Radhika Perrot

The innovation dynamics in the transition to renewable energy industries in India and South Africa is explored, by examining the development of the two main renewable energy technologies and comparing the transitional approaches. The functions of a technological systems approach is used to trace the evolution of actors, networks and institutions that have had a bearing on the generation and dif...

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