نتایج جستجو برای: simultaneous location routing

تعداد نتایج: 389156  

Journal: :international journal of supply and operations management 2015
ahmad mohamadi saeed yaghoubi hadis derikvand

occurrence of natural disaster inflicts irreparable injuries and symptoms on humans. in such conditions, affected people are waiting for medical services and relief commodities. thus, quick reaction of medical services and relief commodities supply play important roles in improving natural disaster management. in this paper, a multi-objective non-linear credibility-based fuzzy mathematical prog...

1999
Hai Zhou D. F. Wong I-Min Liu Adnan Aziz

Locations Hai Zhou1, D.F. Wong1, I-Min Liu2, and Adnan Aziz2 1 Department of Computer Sciences, University of Texas, Austin, TX 78712 2 Department of Electrical and Computer Engineering, University of Texas, Austin, TX 78712 Abstract During the routing of global interconnects, macro blocks form useful routing regions which allow wires to go through but forbid bu ers to be inserted. They give re...

Journal: :journal of industrial engineering and management studies 0
m. sayyah department of mathematics, parand branch, islamic azad university, parand, iran. h. larki department of mathematics, shahid chamran university of ahvaz, iran. m. yousefikhoshbakht young researchers & elite club, hamedan branch, islamic azad university, hamedan, iran.

one of the most important extensions of the capacitated vehicle routing problem (cvrp) is the vehicle routing problem with simultaneous pickup and delivery (vrpspd) where customers require simultaneous delivery and pick-up service. in this paper, we propose an effective ant colony optimization (eaco) which includes insert, swap and 2-opt moves for solving vrpspd that is different with common an...

The location-routing problem is one of the combined problems in the area of supply chain management that simultaneously make decisions related to location of depots and routing of the vehicles. In this paper, the single-depot capacitated location-routing problem under uncertainty is presented. The problem aims to find the optimal location of a single depot and the routing of vehicles to serve th...

Journal: :journal of advances in computer research 2012
majid yousefikhoshbakht farzad didehvar farhad rahmati

the vehicle routing problem with simultaneous pickup and delivery (vrpspd) is a well-known combinatorial optimization problem which addresses provided service to a set of customers using a homogeneous fleet of capacitated vehicles. the objective is to minimize the distance traveled. the vrpspd is an np-hard combinatorial optimization problem. therefore, practical large-scale instances of vrpspd...

Journal: :international journal of industrial engineering and productional research- 0
mehrdad mirzabaghi college of industrial engineering, tehran south branch, islamic azad university, tehran, iran alireza rashidi komijan department of industrial engineering, firoozkooh branch, islamic azad university, firoozkooh, iran amir h. sarfaraz college of industrial engineering, tehran south branch, islamic azad university, tehran, iran

in the recent decade, special attention is paid to reverse logistic due to economic benefits of recovery and recycling of used products as well as environmental legislation and social concerns. on the other hand، many researches claim that separately and sequential planning of forward and reverse logistic causes sub-optimality. effective transport activities are also one of the most important c...

Journal: :Discrete Applied Mathematics 2019

2011
Sally S. Kassem Sally Kassem

and submitted in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY (Mechanical Engineering) complies with the regulations of the University and meets the accepted standards with respect to originality and quality. Many manufacturers are moving towards green manufacturing. One of the actions for environment friendly manufacturing is collection of end-of-life products...

Journal: :Socio-economic Planning Sciences 2022

Prompt reactions to the vital emergency relief necessities right after sudden-onset disasters, which are included distribution and victim evacuation, crucial mitigation of disaster influences in concerned regions. This paper renders a bi-objective optimization model plan humanitarian districted logistics network, broad range simultaneous decisions concerning facility location-allocation, redist...

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