نتایج جستجو برای: stage randomized sampling method based on cochran
تعداد نتایج: 9988966 فیلتر نتایج به سال:
this thesis attempts to measure learning styles, self efficacy and intrinsic motivation as predictors of iranian ielts reading comprehension. in order to address this issue, a quantitative study was conducted on some randomly selected intact students at ferdowsi university. these two groups were assigned as they were undergraduate (ba=91) and graduate (ma =74) students; they were all aged betwe...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
in order to study fruit quality changes in apple cultivar gala, related to ripening stage and storage time, an experiment was conducted in a split plot arrangement in randomized complete block design with four replicationsin the area of damavand– jaban for three years. five levels of sampling times in storage were assigned to main plots, and three levels of harvesting times were randomized in ...
Introduction: All infants should be exclusively breastfed until the age of six months. In this way, the aim of this project was to investigate the effect of education based on the theory of self-efficacy and health literacy on exclusive breastfeeding in pregnant women referred to health centers of Mashhad in 2015. Materials and Methods: In this randomized clinical trial, 90 nulliparous women wi...
Linear programming (LP) problems are commonly used in analysis and resource allocation, frequently surfacing as approximations to more difficult problems. Existing approaches to LP have been dominated by a small group of methods, and randomized algorithms have not enjoyed popularity in practice. This paper introduces a novel randomized method of solving LP problems by moving along the facets an...
When the size of individuals is a better indicator of their chances to survive, grow, and reproduce than their age, the suitable matrix population model is stage-classified. Cochran and Ellner developed a method to assess age-based parameters from such models. We present here, for these age estimates, simplified formulas that are valid whenever there is neither retrogression nor fission: indivi...
The main purpose of this study is to conceptualize and design the organizational turning model in organizations affiliated to the Ministry of Oil with a data-based approach. This research is in the first stage among qualitative researches with exploratory approach and in the second stage is descriptive-quantitative-survey. In the qualitative stage, the sampling method was purposeful and snowbal...
to study of genetic diversity of rapeseed genotypes using multivariate methods under normal and drought stress conditions, 16 genotypes were evaluated using a randomized complete blocks design with three replications in razi university in 2007-08 cropping season. factor analysis under normal condition showed that nine factors explained 89.05 percentage of total data variation, and under drought...
purpose: the purpose of this study was to investigate the relationship between tendency toward teleworking and organizational commitment (affective commitment, continuance commitment, and normative commitment) among the librarians of isfahan public universities. methodology: the research method was descriptive – correlational survey and the population consisted of all librarians in isfahan univ...
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