نتایج جستجو برای: Robust model

تعداد نتایج: 2253658  

Journal: :مدیریت صنعتی 0
علی محقر دانشگاه تهران محمد رضا مهرگان دانشگاه تهران محمدرضا نازآبادی

applying robust optimization to solve product mix problem in automotive industries in this article, applying robust optimization in product mix problem in automotive industries is presented. the problem includes determining both the quantity and the identification of each product to produce to maximize profit. at first, the deterministic model will be presented. then, robust model of product mi...

Journal: :international journal of management and business research 2012
mahdi bashiri amir moslemi

the paper discusses the location-allocation model for logistic networks and distribution centers through considering uncertain parameters. in real-world cases, demands and transshipment costs change over the period of the time. this may lead to large cost deviation in total cost. scenario based robust optimization approaches are proposed where occurrence probability of each scenario is not know...

Journal: :journal of computer and robotics 0
leila shahmohamadi department of electrical engineering, islamic azad university, south tehran branch tehran, iran mahdi aliyarishoorehdeli faculty of electrical engineering, k. n. toosi university of technology tehran, iran sharareh talaie department of electrical engineering, islamic azad university, south tehran branch tehran, iran

in this study, detection and identification of common faults in industrial gas turbines is investigated. we propose a model-based robust fault detection(fd) method based on multiple models. for residual generation a bank of local linear neuro-fuzzy (llnf) models is used. moreover, in fault detection step, a passive approach based on adaptive threshold is employed. to achieve this purpose, the a...

Journal: :مهندسی صنایع 0
سیامک جبرییل زاده کارشناس ارشد مهندسی صنایع، دانشکدة مهندسی صنایع و مکانیک، دانشگاه آزاد اسلامی، واحد قزوین بهنام وحدانی استادیار، دانشگاه آزاد اسلامی، واحد قزوین، دانشکدۀ مهندسی صنایع و مکانیک، گروه مهندسی صنایع، قزوین، ایران سید میثم موسوی استادیار گروه مهندسی صنایع، دانشکدة فنی و مهندسی، دانشگاه شاهد

in this paper, firstly by using a mixed linear programming a new model of locating facilities with limited capacity is presented to design a closed-loop supply chain in a multi-product and multi-period mode. then, using a robust optimization approach, the proposed model decreases in non-deterministic expansion. the results show that the proposed model can handle facility capacity in a closed lo...

In this paper, mean absolute deviation model for optimal  portfolio selection problem is studied. Due to the uncertainty in the observed returns from financial markets, an improved robust formulation based on Bertsimas and Sim approach  is presented. Then we study the robust model of the problem under correlated uncertainty set and give its equivalent model. Finally,  the performance of the imp...

The paper discusses the location-allocation model for logistic networks and distribution centers through considering uncertain parameters. In real-world cases, demands and transshipment costs change over the period of the time. This may lead to large cost deviation in total cost. Scenario based robust optimization approaches are proposed where occurrence probability of each scenario is not know...

Journal: :international journal of smart electrical engineering 2013
mohsen jahanshahi sayyid mohsen houshyar amir reza zare bidaki3

the networked control system in modern control widely uses to decrease the implementation cost and increasing the performance. ncs in addition to its advantages is inevitable. nevertheless they suffer of some limitations and deficiencies. packet loss is one of the main limitations which affect the control system in different conditions and finally may lead to system instability. for this reason...

Atousa Zarindast Mir Saman Pishvaee Seyed Mohamad Seyed Hosseini

Robust supplier selection problem, in a scenario-based approach has been proposed, when the demand and exchange rates are subject to uncertainties. First, a deterministic multi-objective mixed integer linear programming is developed; then, the robust counterpart of the proposed mixed integer linear programming is presented using the recent extension in robust optimization theory. We discuss dec...

Feizollahi, Modarres yazdi,

 We consider a generalization of the classical quadratic assignment problem, where coordinates of locations are uncertain and only upper and lower bounds are known for each coordinate. We develop a mixed integer linear programming model as a robust counterpart of the proposed uncertain model. A key challenge is that, since the uncertain model involves nonlinear objective function of the ...

Journal: :مهندسی صنایع 0
مسعود ربانی استاد دانشکده مهندسی صنایع - پردیس دانشکده های فنی- دانشگاه تهران نیلوفر سادات حسینی کارشناس ارشد مهندسی صنایع- پردیس دانشکده های فنی- دانشگاه تهران ندا معنوی زاده استادیار گروه مهندسی صنایع- دانشکده فنی- مهندسی دانشگاه الزهرا

in this paper, we consider a multi-site production planning problem subject to uncertainty in demand and workforce expenses. in our new mathematical model, we presented a production planning system considering failure in rework and breakdown. we also survey human workforce allocation and its expenses which are considered uncertain due to some tradeoff between company’s benefits and workforce :u...

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