نتایج جستجو برای: length effect

تعداد نتایج: 1903671  

Journal: :نشریه دانشکده فنی 0
دکتر مجید ملکی جمشید محرری

in this paper, two-dimensional heat transfer in a semi-infinite wall with fins of rectangular profile has been investigated. the conduction equations of the wall and fins are solved simultaneously by a numerical method. the principal parameters of the problem are the fin spacing, length, and fin-to-wall conductivity ratio. in this investigation, the effect of these parameters on two-dimensional...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1391

the effect of poss instruction in comparison with conventional instruction on development of esp learners’ parts of speech knowledge and attitude toward call.

Journal: :مهندسی عمران فردوسی 0
آتنا فردوسی فریدون مقدس نژاد اسماعیل افلاکی

in this study, stability of geosynthetic reinforced soil retaining walls investigated using plaxis code that is based on finite element method. the effects of axial stiffness, length and vertical space between geosynthetic layers, internal friction angle of soil wall and cohesion of foundation on deformations of wall and maximum axial force of geosynthetic have been investigated. results of ana...

Journal: :international journal of advanced biological and biomedical research 2013
mostafa eidi kohnaki ghaffar kiani ghorbanali nematzade

in order to evaluate the relationship between morphological characters in rice lines two populations at f3 generation were grown in research field of agricultural sciences and natural resource university, sari, iran, during 2012. statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...

Journal: :علوم باغبانی ایران 0
احمدرضا عباسی فر دانشجوی سابق دکتری و دانشیار، دانشکدة کشاورزی، دانشگاه بوعلی سینا، همدان فرشاد دشتی دانشجوی سابق دکتری و دانشیار، دانشکدة کشاورزی، دانشگاه بوعلی سینا، همدان

this research was designed to identify garlic (allium sativum l.) bolting clones and determining the relationship between their morphological traits and bolting capacity by using statistical methods of analysis of variance, comparison of means, correlation coefficients, factor analysis, stepwise regression, path analysis and cluster analysis. traits including flowering ability, number, length a...

Journal: :Journal of the Visualization Society of Japan 1997

Journal: :International Journal of Concrete Structures and Materials 2020

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