نتایج جستجو برای: control system design by computer

تعداد نتایج: 9030933  

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم پایه 1392

in this thesis,spin dependend transport and electron transport through of ng/sg(graphene/ superconductor graphen) are studied in the junction of ng/fgt/sg. due to andreev reflection conductance increases in the presence of superconductor graphene.also, by applying a voltage gate on a superconductor, fermi level shifts and the conductance is independent of ferromagnatic substrate. also, the cond...

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

some researches made in the field of agency problem issue, deal with the role of control systems regarding owners and managers. in this research the relationship between the two control mechanisms, namely the voluntary disclosure (external control mechanism) and outside directors (internal control mechanism), which are reductive of agency problems, has been studied. for this reason, a sample ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...

Journal: :معماری و شهرسازی 0
افرا غریب پور استادیار دانشکده معماری، پردیس هنرهای زیبا، دانشگاه تهران

the importance of drawing by hand in architectural design process is undoubtedly clear. nevertheless, different computer software for drawing and designing in the field of architecture are growing rapidly and the confrontation of these two different types of drawing has become an important subject of discussion, which needs to be addressed analytically. this article attempts to analyze the use ...

Journal: :Computer-Aided Civil and Infrastructure Engineering 2014

Journal: :international journal of smart electrical engineering 2014
mohammad reza asadi asad abad amir reza zare bidaki mohsen jahanshahi

this paper proposes an efficient tracking method for velocity control of an electro-hydraulic servo system (ehss) in the presence of flow nonlinearities and internal friction. the tracking method controller is a kind of feedback error learning structure. in the proposed method, the feedback error learning (fel) algorithm is used to control the velocity. there is no need to compute the system ja...

Journal: :مدیریت صنعتی 0
لیلا علی زاده دانشجوی کارشناسی ارشد مهندسی صنایع دانشکدة مهندسی صنایع، دانشگاه آزاد واحد جنوب، تهران، ایران. رسول نورالسناء استاد دانشکدة مهندسی صنایع، دانشگاه علم و صنعت، تهران، ایران. صدیق رئیسی دانشیار دانشکدة مهندسی صنایع، دانشگاه آزاد اسلامی، واحد جنوب، تهران، ایران.

since the analysis of complex services systems by using mathematical modeling techniques, with considering the random patterns prevailing in them, is so difficult or probably impossible, improvement guidelines are often followed based on the experts' experiences using qualitative methods. in the present paper, by employing a discrete event computer simulation methodology, criminal trial sy...

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