نتایج جستجو برای: routing problem multi

تعداد نتایج: 1313920  

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده روانشناسی و علوم تربیتی 1391

the purpose of this study was the relationship between problem – solvi ability with fdi cognitive style of students.the research method was correlation method. for data analysis pearson test was used. statistical society in this research was all the students of alligoodarz city in 1391-92 year.to sampling of statiscal population was used sampling multi-stage random the size of sample selected 2...

Journal: :international journal of supply and operations management 0
mohammad mirabi department of industrial engineering, ayatollah haeri university of meybod, meybod, yazd, iran nasibeh shokri group of industrial engineering, elm-o-honar university, yazd iran ahmad sadeghieh group of industrial engineering, yazd university, yazd, iran

this paper considers the multi-depot vehicle routing problem with time window in which each vehicle starts from a depot and there is no need to return to its primary depot after serving customers. the mathematical model which is developed by new approach aims to minimizing the transportation cost including the travelled distance, the latest and the earliest arrival time penalties. furthermore, ...

A. Salamatbakhsh, , M. Alinaghian, , M. Ghazanfari, , N. Norouzi, ,

This paper presents a novel multi-objective mathematical model of a periodic vehicle routing problem (PVRP) in a competitive situation for obtaining more sales. In such a situation, the reaching time to customers affects the sale amount therefore, distributors intend to service customers earlier than other rivals for obtaining the maximum sale. Moreover, a partial driver’s benefit is related...

Journal: :مهندسی صنایع 0
مصطفی ستاک دانشکده مهندسی صنایع- دانشگاه صنعتی خواجه نصیرالدین طوسی سهیل جلیلی بوالحسنی دانشکده مهندسی صنایع- دانشگاه صنعتی خواجه نصیرالدین طوسی حسین کریمی دانشکده مهندسی صنایع- دانشگاه صنعتی خواجه نصیرالدین طوسی بهارک قربانی دانشکده مهندسی صنایع- دانشگاه صنعتی خواجه نصیرالدین طوسی

in this paper, we study the multi-depot vehiclerouting problem with inter-depot routes, in which the vehicles can replenish atintermediate depots. vehicles leave the origin depot with load on-board andserve customers until out of load. they may visit an intermediate depot toreplenish and finally return to the origin depot, completing their route. weinitiate a mathematical mixed integer programm...

Journal: :مهندسی صنایع 0
علیرضا عیدی استادیار گروه مهندسی صنایع- دانشگاه کردستان- سنندج سید علی قاسمی نژاد دانشجوی کارشناسی ارشد مهندسی صنایع- دانشگاه کردستان- سنندج حنیف محققی دانشجوی کارشناسی ارشد مهندسی صنایع- دانشگاه کردستان- سنندج

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Manufacturers, who re-supply a large number of customers, continually struggle with the question of how to formulate a replenishment strategy. The purpose of this paper is to determine the optimal set of routes for a group of vehicles in the transportation network under defined constraints – which is known as the Vehicle Routing Problem (VRP) – delivering new items, and resolving the invent...

Journal: :The Journal of Japan Institute of Navigation 2005

Journal: :مهندسی صنایع 0
حسینعلی حسن‏پور دانشگاه امام حسین مسعود مصدق‏خواه دانشگاه امام حسین رضا توکلی‏مقدم دانشگاه تهران

in this paper, a stochastic multi-depot multi-objective vehicle routing problem (vrp) is studied. based on observations in real-world problems, we develop an aspect of the problem, such as stochastic availability of routes. to solve the problem in this situation, a two-objective mathematical model is developed, in which the related objective functions are: (1) minimizing transportation costs an...

In this paper, a new approach to risk minimizing vehicle routing and scheduling problem is presented. Forwarding agents or companies have two main concerns for the collection of high-risk commodities like cash or valuable commodities between the central depot and the customers: one; because of the high value of the commodities transported, the risk of ambush and robbery are very high. Two; the ...

Journal: :journal of advances in computer research 0
reza fotohi department of computer engineering, germi branch, islamic azad university, germi, iran roodabe heydari department of computer engineering, germi branch, islamic azad university, germi, iran shahram jamali department of computer engineering, mohaghegh ardabili university, ardabil, iran

mobile-ad-hoc-networks (manets) are self-configuring networks of mobile nodes, which communicate through wireless links. the infrastructure of a mobile ad hoc network (manet) has no routers for routing, and all nodes must share the same routing protocol to assist each other when transmitting messages. the main issues in manets include the mobility of the network nodes, the scarcity of computati...

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