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تعداد نتایج: 16075876  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1390

در این پایان نامه دو کمپلکس تک هسته ای از رنیم(i) با فرمول های [recl(co)3(phen-dione)] و [recl(co)3(py)2] و کمپلکس دو هسته ای [recl(co)3(?-tptzh)re(co)3] که لیگاند tptz-h، 2 و 4 و 6- تری(پیریدیل-2-ایل)- h2- 1 و 3 و 5 تری آزین-1- اید است، سنتز و به کمک آنالیز عنصری، طیف سنجی های ft-ir، uv- vis و nmr شناسایی شده اند. ساختار حالت جامد کمپلکس [recl(co)3(?-tptzh)re(co)3] با کریستالوگرافی اشعه- x تک ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده ادبیات و علوم انسانی 1392

in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...

Hamid Ashrafi, R. Boostani S. Nazarbaghi

Brain foreign bodies and penetrating missile injuries of the brain are familiar topics for Iranian physicians, especially after Iran and Iraq war. But it’s not easily plausible that there is a couple of sewing needles in the cranium of a patient who has not any history of head trauma or penetrating injury. The patient was a 42-year-old man who admitted in neurology ward of Mottahari Hospital in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1388

the present study set out (a) to examine the categories of pedagogical knowledge related to the act of teaching of novice and experienced teachers as gleaned from their verbal report of what they were thinking about while teaching and (b) to compare the categories of pedagogical knowledge of novice and experienced teachers. the aim of comparing these two groups of teachers was to see whether di...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

Journal: :Computers & Education 2000
Kai Hakkarainen Liisa Ilomäki Lasse Lipponen Hanni Muukkonen Marjaana Rahikainen Taneli Tuominen Minna Lakkala Erno Lehtinen

The purpose of the study was to investigate Finnish elementary and high school students' skills and practices of using the new information and communication technologies (ICT). Beliefs about the importance of ICT were also assessed. Five hundred and ®fteen students responded to a self-report questionnaire. The students attended 25 schools that used ICT intensively and represented all provinces ...

2013
Ian Morrison David Swinarski

We study, in various special cases, total distributions on the product of a finite collection of finite probability spaces and, in particular, the question of when the probability distribution of each factor space is determined by the total

Journal: :CoRR 2009
Mouhamed Abdulla Yousef R. Shayan

The word “researcher” is loaded and often confusing. It takes years to become one and to master all of its aspects. In this paper, we investigate whether or not this process of “becoming” can be catalyzed through education. The focus will be on wireless communications, though the same principle could very well be replicated to other disciplines.

2005
R. C. Batra

The analog of Toupin's version of Saint-Venant's principle is proved for an isotropie, linear elastic mieropolar body of arbitrary length and of uniform cross-section which in the unstressed state is helical. That is, when such a body is loaded by self-equilibrated stresses and couple stresses at one end only, we show that the elastic strain energy stored in the part of the body beyond a certai...

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