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...

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...

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 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...

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...

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...

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...