نتایج جستجو برای: groups efficiency
تعداد نتایج: 1100554 فیلتر نتایج به سال:
cotton as a strategic product plays an important role inthe economy of boshrouyehwhere is known as the major cotton producing center of khorasan-e-jonoubi. in this paper, efficiency of boshroyeh cotton farms in 2007 have been calculated using data envelopment analysis (dea) and determinants of efficiency were identified using tobit regression analysis. the data was collected from questionnaires...
this study was an attempt to investigate and compare the effect of lexical inferencing and concept mapping on developing vocabulary retention of iranian language learners. sixty homogeneous students from different intact classes who were being taught as intermediate learners in sokhan english institute participated in this study. they were in different classes. a teacher made test as a pre-test...
this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...
in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...
background: reducing drug-related issues less than 18 years of age and increasing population of this group of addiction emphasizes importance of educating social skills for reinforcing drug assistance self-efficiency in this social group. the study was aimed to measure impact of social skills on drug abstinence self-efficacy amongst male students in ahwaz city, southwest iran. methods: with sem...
introduction: the efficiency of muscular function is directly related to energy consumption. maintaining the dynamic equilibrium and fatigue during walking and other daily activities are the main problems in spastic cerebral palsy patients. recognition of mechanism and muscular function in these patients is important from a clinical and rehabilitational perspective. the objective of this study ...
An alternative approach for evaluating the efficiency of integrated circuit (IC) design firms is presented in this paper. We took into account the differences between technology groups, containing one or more design firms, and input and output factors to prevent influences of scale (e.g., firm size). Specifically, we employed a directional distance function approach to data envelopment analysis...
The effects of changes in cellular characteristics and dissolved organic matter (DOM) on dissolved air flotation (DAF) harvesting of Chlorella zofingiensis at the different growth phases were studied. Harvesting efficiency increased with Al(3+) dosage and reached more than 90%, regardless of growth phases. In the absence of DOM, the ratio of Al(3+) dosage to surface functional group concentrati...
PURPOSE The aim of this study was to evaluate masticatory efficiency in children with normal primary occlusion and malocclusion and to correlate efficiency with body variables. METHODS Thirty children were divided into three groups: Group I with normal occlusion (n = 10), Group II with posterior crossbite (n = 10) and Group III with anterior open bite (n = 10). They chewed standardized silico...
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