نتایج جستجو برای: energy cost

تعداد نتایج: 1018799  

Linear programming problems with alternate solutions are challenging due to the choice of multiple strategiesresulting in the same optimal value of the objective function. However, searching for these solutions is atedious task, especially when using mixed integer linear programming (MILP), as previously applied tometabolic models. Therefore, judgment on plurality of optimal m...

Elahe Veisi Leila Siampour Mehdi Jahangiri, Shoeleh Vahdatpour Shokoofeh Behzadfar

Renewable systems influence the process of supplying domestic electricity demands. It will be useful to replace the conventional energy generation system by renewable energy sources since the uncontrolled use of fossil fuels is accompanied by global warming and environmental hazards, in addition to the danger of their depletion, and because most of the energy derived from these fuels are used i...

رجبی مشهدی, مصطفی, سلیمی‌فر, مصطفی, قائمی اصل, مهدی, مهدوی عادلی, محمدحسین,

Zero-energy city, sustainable City and zero-carbon city are new terms in cities’ energy management. In this study, a framework of designing a Low-Carbon Eco-City (LCEC) in urban sector of Mashhad with focus on sustainable supply of electrical energy has been simulated. For this purpose, the maximum potential of biomass renewable electricity and expansion of photovoltaic capacity- required to co...

Journal: :international journal of marine science and engineering 0
vahid niksima young researchers club, science and research branch, islamic azad university, tehran, iran kamran lari department of physical oceanography, tehran north branch, islamic azad university, tehran, iran masoud torabiazad department of physical oceanography, tehran north branch, islamic azad university, tehran, iran

nowadays, in consideration of environmental issues and limitation of fossil fuels, there is a particular consideration of renewable energy including ocean energy, that can extracted going through various methods such as wave energy, tidal energy, salinity gradient, otec: ocean thermal energy conversion.herein this research, operation of otec method in southern caspian sea has been discussed. fo...

Journal: :physical chemistry research 0
fatemeh ravari payame noor university seyed morteza fazeli payame noor university hamid reza bozorgzadeh research institute of petroleum industry jafar sadeghzadeh ahari research institute of petroleum industry

abstract in this work, the dry reforming of methane was studied using a corona and glow discharge plasma microreactors. a chemical kinetic model was developed to understand the reaction better. the modelization allowed prediction of the reactants conversion according to the energy transfer to the gas (p×τ). the β value is trait of the energy cost, whatever this value was leeser indicated better...

Journal: :international journal of smart electrical engineering 2015
sadegh etemad nasser mozayani

the use of renewable energy in power generation and sudden changes in load and fault in power transmission lines  may cause a voltage drop in the system and challenge the reliability of the system. one way to compensate the changing nature of renewable energies in the short term without the need to disconnect loads or turn on other plants, is the use of renewable energy storage. the use of ener...

Journal: :The American journal of clinical nutrition 2005
Adam Drewnowski Nicole Darmon

Highest rates of obesity and diabetes in the United States are found among the lower-income groups. The observed links between obesity and socioeconomic position may be related to dietary energy density and energy cost. Refined grains, added sugars, and added fats are among the lowest-cost sources of dietary energy. They are inexpensive, good tasting, and convenient. In contrast, the more nutri...

2003
Qiling Xie Chin-Tau A. Lea Mordecai J. Golin Rudolf Fleischer

The Maximum Residual Energy Path (MREP) routing has been shown an effective routing scheme for energy conservation in a battery wireless network. Past studies on MREP are based on the assumption that the transmitting node consumes power, but the receiving node does not. This assumption is false if acknowledgement is required, or if the ad hoc network has deployed the energy-conservation mode (s...

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