نتایج جستجو برای: then five hypotheses are developed in proposed model

تعداد نتایج: 17616274  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده ادبیات 1394

abstract the purpose of this study was to find out the effect of applying the principles of group-dynamic assessment (g-da) on learning of conditional structures in english by iranian efl learners at the intermediate level, which according to the formal educational system in iran, includes students who are in their second year of studying in high schools of koohdasht city. this study was a qua...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

the present paper offers a postcolonial reading of two of the best novels by v. s. naipaul – half a life and the mimic men – in five chapters. the focus of this research is on different notions of postcolonial criticism and their application on the two novels as discussed from homi bhabha’s and frantz fanons points of view. having introduced the life and literary career of v. s. naipaul in th...

Journal: :پژوهش های حسابداری مالی 0
سید عباس هاشمی اصفهان - خ ارتش- سجادیه 5 - کوچه شهید ابرقویی نژاد- کوچه بهار-مجتمع بهار سید محسن حسینی سید محسن حسینی سجاد برعندان

â  using of prediction models is one of the methods of financial performance prediction. financial ratios are employed as predictive variable in prediction models. the main purpose of this study is to compare the incremental information content of accrual and cash ratios for prediction and evaluation of the financial performance of business entities by data mining models. in align with research...

Journal: :مهندسی صنایع 0
محمدمهدی نصیری استادیار دانشکدة مهندسی صنایع پردیس دانشکده های فنی دانشگاه تهران نادیا پورمحمد ضیا کارشناسی ارشد دانشکده مهندسی صنایع پردیس دانشکده های فنی دانشگاه تهران

performance of a supply chain highly depends on its suppliers and therefore, appropriate selection of them is of great importance. this paper presents an integrated model of an mcdm method and a mathematical programming in order to select suppliers and determine lot sizes in the supply chain. the proposed framework comprises two main sub-models; the qualitative sub-model seeks to evaluate the s...

Journal: :international journal of robotics 0
abbas fattah isfahan university of technology reza dehghani isfahan university of technology

in this paper, stability analysis of walking gaits and robustness analysis are developed for a five-link and four-actuator biped robot. stability conditions are derived by studying unactuated dynamics and using the poincarã© map associated with periodic walking gaits. a stable gait is designed by an optimization process satisfying physical constraints and stability conditions. also, considering...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات 1390

this study is an outlook of iranians religious practices and customs in eras such as nasser one. it attempts to answer the main question, "religious practices and ceremonies in the society during naseri ruling" and other subsidiary questions with scientific and historical theories. iran was a traditional and religious community . people abided by their religious practices and duties within reli...

Journal: :international journal of civil engineering 0
p. ghoddousi iust r. ahmadi bhrc mahdi sharifi iust

superior performances of self-compacting concrete (scc) in fresh state to achieve a more uniform distribution encourage the addition of fibers in concrete which is a motivation for structural application of fiberreinforced concrete. fiber addition reduces the workability of self-compacting fiber reinforced concrete (scfrc). to provide required workability of the scfrc, more paste is needed in t...

Journal: :مهندسی صنایع 0
بهلول ابراهیمی دانشجوی دکتری مهندسی صنایع پژوهشکدة توسعة تکنولوژی جهاد دانشگاهی شریف مرتضی رحمانی دانشیار گروه پژوهشی مهندسی صنایع پژوهشکدة توسعة تکنولوژی جهاد دانشگاهی شریف و دانشیار دانشکدة علوم پایه، دانشگاه علم و فرهنگ مرتضی خاکزار بفرویی استادیار گروه پژوهشی مهندسی صنایع پژوهشکدة توسعة تکنولوژی جهاد دانشگاهی شریف

sohrabi and nalchigar (2010) proposed a new data envelopment analysis (dea) model to identify the most efficient decision-making unit (dmu) in presence of imprecise data. in this paper, it is shown that the proposed model is not able to determine the most efficient dmu and is randomly introduced an efficient dmu. in addition, it is shown that this model determines the most efficient dmu in the ...

In this paper, a task-space controller for electrically driven robot manipulators is developed using a robust control algorithm. The controller is designed using voltage control strategy. Based on the nominal model of the robotic arm, the desired signals for motor currents are calculated and then the voltage control law is proposed based on the current errors and motor nominal electrical model....

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