نتایج جستجو برای: section of energy sector
تعداد نتایج: 21263348 فیلتر نتایج به سال:
in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...
Development has begun of a new experiment to measure the charged pion polarizability απ − βπ . The charged pion polarizability ranks among the most important tests of low-energy QCD presently unresolved by experiment. Analogous to precision measurements of π◦→ γγ that test the intrinsic odd-parity (anomalous) sector of QCD, the pion polarizability tests the intrinsic evenparity sector of QCD. T...
the aim of this paper is to develop a prediction model of energy demand of iran’s industrial sector. for that matter a markov chain grey model (mcgm) has been proposed to forecast such energy demand. to find the effectiveness of the proposed model, it is then compared with grey model (gm) and regression model. the comparison reveals that the mcgm model has higher precision than those of the gm ...
many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...
the present article has it's roots in a survey research aiming at investigating the role and position of iranian national media(irib) in sustainability governance model. in such a model different section of the society should have the necessary balance. the population of the research consists of managers and senior experts of organizations connected with sustainable development of the coun...
The United Nations Framework Convention on Climate Change calls on member states to reduce their greenhouse gas emissions as much as possible in order to combat global warming. Iran has announced 4 and 12 percent emission reduction targets in 2030 in its Intended Nationally Determined Contributions compared to the Business-As-Usual (BAU) scenario, in which the energy sector has the largest shar...
The identification of the most important factors affecting energy intensity with the aim of controlling and managing energy consumption is an important topic. Findings of different empirical studies on the factors affecting energy intensity are inconsistent and this raises uncertainty about the employed models. One of the techniques that conform to these uncertainty conditions of the model is t...
this ethnographic case study research was carried out in a private school setting in the context of iran. the research tried to explore the analysis and identity construction of a group of learners and teachers along with the content analysis of books on the basis of four types of commodified, political, national and narrative identities. how english language learners and teachers in an informa...
The United Nations Framework Convention on Climate Change calls on member states to reduce their greenhouse gas emissions as much as possible in order to combat global warming. Iran has announced 4 and 12 percent emission reduction targets in 2030 in its Intended Nationally Determined Contributions compared to the Business-As-Usual (BAU) scenario, in which the energy sector has the largest shar...
High-energy unitarity is argued to select a special version of QCD as the strong interaction. Electroweak symmetry breaking has to be due to a new sextet quark sector-that will produce large cross-section effects at the LHC. The sextet sector embeds, uniquely, in a massless SU (5) theory that potentially generates the states and interactions of the Standard Model within a bound-state S-Matrix. ...
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