نتایج جستجو برای: energy concept analysis
تعداد نتایج: 3566253 فیلتر نتایج به سال:
this paper applied a non-parametric (data envelopment analysis) method to analyze the efficiency of farmers, discriminate efficient farmers from inefficient ones and to identify wasteful uses of energy in order to optimize the energy inputs for greenhouse cucumber production in lorestan province of iran. data were collected from 27 cucumber producers by using a face-to-face questionnaire.dea cr...
the concept of energy security has been changed into one of the key and controversial concepts in international relations and energy economy in the recent years. the literature of this concept has more developed in europe. because, european countries supply their major needs by imports. hence, russia as one of the main energy suppliers of europe :union: uses leveraging energy for closer to euro...
the first and second laws of thermodynamics have been employed to evaluate energy and exergetic efficiency of the single effect absorption chiller which is used for air conditioning purpose. the performance analysis has been carried out by developing a computer program in ees and modeling the chiller and its components. to evaluate entropy of the water/lithium bromide solution at any point, an ...
Introduction: Considering the pervasiveness of social accountablemedical education concept around the world and the growingtrend of literature in this regard as well as various interpretationsmade about this concept, we found it necessary to analyze theconcept of social accountable medical education.Methods: In this study, the modified version of McKenna’s approachto concept analysis was used t...
nonlinear static procedure (nsp) is a common technique to predict seismic demands on various building structures by subjecting a monotonically increasing horizontal loading (pushover) to the structure. therefore, the pushover analysis is an important part of each nsp. accordingly, the current paper aims at investigating the efficiencyof various algorithms of lateral load patterns applied to the...
concept analysis of transition from nursing student to clinical nurse: rodgers' evolutionary concept analysis rafieef [1] , sajadihezaveh m [2] * received: 21 feb, 2012 accepted: 27apr, 2012 abstract background &aims; : the transition from nursing student to clinical nursing is a major challenge.the aim of this study was to clarify concept of transition in new graduate nursin...
the power supply of remote sites and applications at minimal cost and with low emissions is an important issue when discussing future energy concepts. this paper presents modeling and optimization of a photovoltaic (pv)/wind/diesel system with batteries storage for electrification to an off-grid remote area located in rafsanjan, iran. for this location, different hybrid systems are studied and ...
in this paper smart operation of micro energy hub is presented. energy hub system consists of certain energy hubs and interconnectors that are coordinated by energy hub system operator. an energy hub contains several converters and storages to serve demanded services in most efficient manner from available energy carriers. in this paper, the flexibility of energy delivery point is enhanced u...
the present research has been deducted from a provincial research project which aims at determining the relationship of variables of variables of occupational self-concept, intelligence beliefs and metacognitive with entrepreneurship among the students of payame noor university of kurdistan. the volume of the samples was 1080 students (576 female and 504 male students). the research methodology...
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