نتایج جستجو برای: semi-cycle analysis
تعداد نتایج: 3139231 فیلتر نتایج به سال:
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...
in this paper, a new combined power and refrigeration cycle is proposed, which combines the rankin power cycle and the ejector refrigeration cycle. this combined cycle produces both power output and refrigeration output simultaneously. this cycle is driven by the flue gas of gas turbines, industrial waste heats, solar energy and geothermal energy. an exergy analysis is performed to guide the th...
purpose: the aim of this study is to analyze the theoretical foundations, the concept, documentation history, steps and the procedure of documentation of knowledge on the basis of life cycle of organizational knowledge and the introduction of automatic and semi-automatic operational strategies of the extraction of tacit knowledge and coding or the representation of explicit knowledge. methodolo...
Semi-closed oxy-fuel combustion combined cycle (SCOC-CC) is a strong concept of carbon capture and storage (CCS) in gas-fired power plants. This technology similar to conventional cycle, however oxygen instead air used fuel combustion. In the gas turbine flue gases consist mainly CO2 H2O. One problems implement this necessity an separation unit (ASU) separate from air, which increases energy co...
this study was conducted to investigate the impact of portfolio assessment as a process-oriented assessment mechanism on iranian efl students’ english writing and its subskills of focus, elaboration, organization, conventions, and vocabulary. out of ninety juniors majoring in english literature and translation at the university of isfahan, sixty one of them who were at the same level of writing...
metric (mapping evapotranspiration at high resolution with internalized calibration) is known as an appropriate surface energy balance model for the estimation of the spatial distribution of evapotranspiration (et) in semi-arid regions. based on lysimeter measurements, metric has shown et estimates of 10% on a sub-field scale on a daily basis. there is a need to identify how the model is sensit...
objective: to clarify the principles of a safe delivery based on clinical governance criteria, as recommended by the pertinent experts. materials and methods: the current study was part of a qualitative research conducted by content analysis method in 2013 and purposive sampling, performing 24 in-depth interviews based on semi-structured questions and analyzed using thematic content analysis. t...
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