نتایج جستجو برای: stage cluster sampling technique
تعداد نتایج: 1290714 فیلتر نتایج به سال:
Design of Cellular Manufacturing System involves four major decisions: Cell formation (CF), Group layout (GL), Group scheduling (Gs) and Resource assignment (RA). These problems should be regarded, concurrently, in order to obtain an optimal solution in a CM environment. In this paper a two stage heuristic procedure is proposed for CF and RA decisions problem. The solution approach contains a ...
the main objective in this causal-correlation field research was to identify effective factors on rural youth’s attitude towards agricultural occupation, in kohgiluyeh and boyer-ahmad province, iran. rural youth 15-25 years old in kohgiluyeh and boyer- ahmad province were the population of this study. the technique of sampling was cluster sampling. the technique of data collection is questionna...
a field experiment was conducted to study the spatial relationships between weed seed bank and population and their distribution models in sugar beet crop (beta vulgaris) in 2009 at motahari agricultural research station of karaj. sampling from seed bank before sugar beet drilling and weed population in three stages during the growing season were done using square (50*50 cm) and rectangle (25*...
A 4 bit very low power and low incoming signal analog to digital converter (ADC) using a double sampling switched capacitor technique, designed for use in CMOS monolithic active pixels sensor readout, has been implemented in 0.35μm CMOS technology. A nonresetting sample and hold stage is integrated to amplify the incoming signal by 4. This first stage compensates both the amplifier offset effec...
Studies on sustainable agricultural have not paid adequate attention to farmers' behaviour regarding sustainability. The objectives of this research were: 1) to determine the relationship between socio-economic and farming factors with “sustainable agricultural knowledge”, 2) to predict “sustainable agricultural knowledge” based on socio-economic and farming factors, and 3) to determine the rel...
Studies on sustainable agricultural have not paid adequate attention to farmers' behaviour regarding sustainability. The objectives of this research were: 1) to determine the relationship between socio-economic and farming factors with “sustainable agricultural knowledge”, 2) to predict “sustainable agricultural knowledge” based on socio-economic and farming factors, and 3) to determine the rel...
Objective: The purpose of the present study was to determine the role of educational policy-making in changing awareness and attitude (risk perception) in adolescents and the youth in preventing substance dependence. Method: This research was applicable in terms of purpose and the research method was a mixed method with the exploratory approach. At first, 15 experts in the field of education an...
Effective pedagogical practice promotes the achievement of students and builds up confidence of the teachers in teaching. The major cause for the gap in pedagogical practices can be attributed to the lack of pedagogical competence. The present study employed a mixed method research approach to examine Iranian high school English Language teachers’ perception of pedagogical competence in two pha...
in the present study, through the application of self-determination theory the impact of work climate and social network size on the volunteers motivation were investigated. research type of this study is applied and research method type is descriptive. in this study active volunteers of tehran red crescent society were selected as statistical population .concerning the population of studied ce...
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