نتایج جستجو برای: a multi

تعداد نتایج: 13524697  

Journal: :international journal of environmental research 2010
a. sadeghi-niaraki k. kim m. varshosaz

this paper addresses a multi-criteria decision based methodology to develop a road network cost function for route finding analysis in a geographic information system (gis). over the years, several studies relating to route planning process in gis and intelligent transportation systems (its) have been conducted, most of which rely on the use of one-dimensional variables like distance or time as...

Journal: :international journal of supply and operations management 0
ali akbar hasani industrial engineering and management department, shahrood university of technology, shahrood, iran

in this paper, a comprehensive model is proposed to design a network for multi-period, multi-echelon, and multi-product inventory controlled the supply chain. various marketing strategies and guerrilla marketing approaches are considered in the design process under the static competition condition. the goal of the proposed model is to efficiently respond to the customers’ demands in the presenc...

This paper focuses on multi-objective designing of multi-machine Thyristor Controlled Series Compensator (TCSC) using Strength Pareto Evolutionary Algorithm (SPEA). The TCSC parameters designing problem is converted to an optimization problem with the multi-objective function including the desired damping factor and the desired damping ratio of the power system modes, which is solved by a SPEA ...

Journal: :journal of artificial intelligence in electrical engineering 0

multi-path is favorite alternative for sensor networks, as it provides an easy mechanism to distributetraffic, as well as considerate fault tolerance. in this paper, a new clustering based multi path routingprotocol namely ecrr (energy efficient cluster based routing algorithm for improving reliability) isproposed, which is a new routing algorithm and guarantees the achievement to required qos ...

Journal: :journal of optimization in industrial engineering 2012
esmaeil mehdizadeh fariborz afrabandpei

logistic network design is one of the most important strategic decisions in supply chain management that has recently attracted the attention of many researchers. transportation network design is then one of the most important fields of logistic network. this study is concerned with designing a multi-stage and multi-product logistic network. at first, a mixed integer nonlinear programming model...

An efficient resource allocation is important to guarantee the best performance with a fair distribution of multi-beam satellite capacity to provide satellite multimedia and broadcasting services. In this way, available bandwidth and capacity problems in new satellite system likes Multi-Input-Multi-Output (MIMO), exploring new techniques for enhancing spectral efficiency in satellite communicat...

Journal: :iranian journal of operations research 0
m.b. fakhrzad yazd,pejoohesh street,hidusterial eng. leila emami yazd,pejoohesh street,hidusterial eng.

this paper presents a new mathematical model for a bi-objective job shop scheduling problem with sequence-dependent setup times that minimizes the weighted mean completion time and the weighted mean tardiness time. for solving this multi-objective model, we develop a fuzzy multi-objective linear programming (fmolp) model. in this problem, a proposed fmolp method is applied with respect to the o...

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...

Journal: :international journal of smart electrical engineering 2014
pedram elhaminia ahmad moradnouri mehdi vakilian

a wind turbine transformer (wtt) is designed using a 3d wound core while the transformer’s total owning cost (toc) and its inrush current performance realized as the two objective functions in a multi-objective optimization process. multi-objective genetic algorithm is utilized to derive pareto optimal solutions. the effects of inrush current improvement on other operating and design parameters...

Journal: :journal of optimization in industrial engineering 2012
alireza alinezhad nima esfandiari

the sensitivity analysis for multi-attribute decision making (madm) problems is important for two reasons: first, the decision matrix as the source of the results of a decision problem is inaccurate because it sorts the alternatives in each criterion inaccurately. second, the decision maker may change his opinions in a time period because of changes in the importance of the criteria and in the ...

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