Demand of energy is more sensible now because of population growth and economic growth of countries. In order to increase of energy consumption around the world and environment pollution, attention to the renewable energy such as solar energy is inevitable. Building-integrated photovoltaic (BIPV) electric power systems not only produce electricity, they are also part of the building. For exam...

The challenge of electricity distribution’s upgrade to incorporate new technologies is big, and electric utilities are mandated to work diligently on this agenda, thus making investments to ensure that current networks maintain their electricity supply commitments secure and reliable in face of disruptions and adverse environmental conditions from a variety of sources. The paper presents a new ...

In the last few years, several states have experienced a significant growth of global energy demand [...]

the aims of this study were about determining of amount of accuracy in tractor-moldboard plow system for tillage operation on paddies and also survey on efficacy of decision support software application on amount of energy use. for this purpose, decision support software was developed by visual basic 6.0. for survey in amount of efficacy of applying the decision support system on paddies tillag...

The Michelsen stability and multiphase flash calculation by direct minimization of Gibbs free energy of the system at constant temperature and pressure, was used for systems containing gas hydrates. The solid hydrate phase was treated as a solid solution. The fugacities of all components of the hydrate phase were calculated as a function of compositions by the rearranged model of van der Wa...