نتایج جستجو برای: an analytical model (kiue et al.

تعداد نتایج: 7231015  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1388

the purpose of this study is identifying effective factors which make customers shop online in iran and investigating the importance of discovered factors in online customers’ decision. in the identifying phase, to discover the factors affecting online shopping behavior of customers in iran, the derived reference model summarizing antecedents of online shopping proposed by change et al. was us...

Journal: :فیزیک زمین و فضا 0
مجید مزرعه فراهانی استادیارگروه فیزیک فضا، مؤسسة ژئوفیزیک، دانشگاه تهران، ایران مرضیه احمدی دانشجوی دکتری هواشناسی، دانشکدة علوم و فنون دریایی، دانشگاه هرمزگان، ایران محمد علی ثقفی کارشناس ارشد/موسسه ژئوفیزیک، دانشگاه تهران

gonu storm was formed in tropical basin of indian ocean early in june 2007. gonu is the strongest tropical cyclone that happened in arabian sea and north indian ocean and moved toward oman sea and persian gulf and bouncing the lands around the area. this tropical cyclone made extensive damages and human and financial causalities to countries of oman, iran, afghanistan, pakistan, and india. in t...

1996
Bruce L. Jacob Peter M. Chen Seth R. Silverman Trevor N. Mudge

| Memory hierarchies have long been studied by many means: system building, trace-driven simulation, and mathematical analysis. Yet little help is available for the system designer wishing to quickly size the diierent levels in a memory hierarchy to a rst-order approximation. In this paper , we present a simple analysis for providing this practical help and some unexpected results and intuition...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده کشاورزی 1393

مطالعه کنه های بالاخانواده raphignathoidea در استان آذربایجان‏غربی طی سالهای 93-1391 انجام شد. در این بررسی جمعا ً26 گونه متعلق به پنج خانواده و 10 جنس مختلف جمع‏آوری و شناسایی شد. از این بین دو گونه برای فون کنه های دنیا جدید بودند که نامگذاری و توصیف گردیدند. caligonellidae grandjean, 1944: caligonella humilis koch, 1838; molothrognathus azizi ueckermann & khanjani, 2002; molothrognathus baha...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1391

according to cheng (1999), in recent esl/efl literature, asian (especially east asian) learners of english as a foreign/second language have been arguably reported as reticent and passive learners. the most common allegations are that these students are reluctant to participate in classroom discourse; they are unwilling to give responses; they do not ask questions; and they are passive and over...

The strength and ductility of concrete improve under multi-axial compressive stress due to confinement effect. Some parameters are effective for considering the confinement in concrete and various stress-strain models were developed by different researchers. Longitudinal and transverse reinforcement steels can influence on confinement in reinforced concrete members. In this paper, various stres...

Introduction: Iran's plateau, especially in different regions of Iran, is composed of different climates, while in its southern areas summer temperatures reach 50 degrees above zero, the Caspian Mediterranean region is running wet weather. One of the most important indicators of climate difference is the issue of water. Today, water supply is one of the most important concerns to realize the go...

2012
Bettina Roßmann Henry Müller Kornelia Smalla Samuel Mpiira Gabriele Berg

Graz University of Technology, Institute of Environmental Biotechnology, Petersgasse 12, A6 8010 Graz, Austria; Julius Kühn-Institut (JKI), Messeweg 11, D-38104 Braunschweig, 7 Germany, Kawanda Agricultural Research Institute, National Banana Research Program, 8 Uganda; Makerere University, Department of Agricultural Production, College of 9 Agricultural and Environmental Sciences, Uganda and B...

Journal: :آب و خاک 0
بهزاد قنبریان علویجه عبدالمجید لیاقت

abstract saturated water content is one of the important parameters which its measurement is necessary in estimation of soil water retention and unsaturated hydraulic conductivity curves. in several researches, saturated water content is assumed to be equal to soil total porosity. in some others, its value is estimated by pedotransfer functions using readily available parameters, such as bulk d...

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