Machines are a key element in the production system and their failure causes irreparable effects in terms of cost and time. In this paper, a new multi-objective mathematical model for dynamic cellular manufacturing system (DCMS) is provided with consideration of machine reliability and alternative process routes. In this dynamic model, we attempt to resolve the problem of integrated family (par...

This paper presents a genetic algorithm based method to solve the capacity and routing assignment problem arising in the design of selfhealing networks using the Virtual Path (VP) concept. Past research has revealed that Preplanned Backup Protection method and the Path Restoration scheme can provide a best compromise on the reserved spare capacity and the failure restoration time. Base on a set...

The Channel Assignment Problem is an NP-complete problem to assign a minimum number of channels under certain constraints to requested calls in a cellular radio system. Examples of the many approaches to solve this problem include using neural-networks, simulated annealing, graph colouring, genetic algorithms, and heuristic searches. We present a new heuristic algorithm that consists of three s...

This paper considers the job scheduling problem in virtual manufacturing cells (VMCs) with the goal of minimizing two objectives namely, makespan and total travelling distance. To solve this problem two algorithms are proposed: traditional non-dominated sorting genetic algorithm (NSGA-II) and knowledge-based non-dominated sorting genetic algorithm (KBNSGA-II). The difference between these algor...

Seru production is one of the latest manufacturing modes arising from Japanese practice. Seru can achieve efficiency, flexibility, and responsiveness simultaneously. To accommodate current business environment with volatile demands fierce competitions, seru has attracted more attention both researchers practitioners. A new planning management sy...

This paper presents a two-stage genetic mechanism for the migration-based load balance of virtual machine hosts (VMHs) in cloud computing. Previous methods usually assume this issue as job-assignment optimization problem and only consider current VMHs' loads; however, without considering loads VMHs after balancing, these can gain limited effectiveness real environments. In study, two genetic-ba...

cellular manufacturing system is one of the most important applications of group technology. design of this system involves many structural and operational issues, in which the cell formation and production planning are two important steps. in this paper, a new mathematical model is proposed for integration of cell formation and production planning problems with the aim of minimizing the overal...

A workforce planning problem is formulated here as a mixed-integer program and then solved with Cplex. Our experiments show that Cplex is capable of solving to optimality of near optimality small “structured” problem instances but it fails to solve those considered “unstructured”. We describe the development of a parallel genetic algorithm capable of finding high-quality solutions to both struc...