This paper presents a new, bi-criteria mixed-integer programming model for scheduling cells and pieces within each cell in manufacturing cellular system. The objective of this is to minimize the makespan inter-cell movements simultaneously, while considering sequence-dependent setup times. In CMS design planning, three main steps must be considered, namely formation (i.e., piece families machin...

This paper aims to study the locomotive assignment problem which is very important for railway companies, in view of high cost of operating locomotives. This problem is to determine the minimum cost assignment of homogeneous locomotives located in some central depots to a set of pre-scheduled trains in order to provide sufficient power to pull the trains from their origins to their destinations...

in this paper, we present a simulated annealing (sa) and a genetic algorithm (ga) based on heuristics for scheduling problem of jobs in virtual cellular manufacturing systems. a virtual manufacturing cell (vmc) is a group of resources that is dedicated to the manufacturing of a part family. although this grouping is not reflected in the physical structure of the manufacturing system, but machin...

this paper presents a new nonlinear mathematical model to solve a cell formation problem which assumes that processing time and inter-arrival time of parts are random variables. in this research, cells are defined as a queue system which will be optimized via queuing theory. in this queue system, each machine is assumed as a server and each part as a customer. the grouping of machines and parts...

–CMOL cell assignment Problem (BP) is a telecommunication problem. CMOL cell assignment problem is very complex due to its constraint. In CMOL cell digital circuits are mapped to the CMOL cell. Each component of digital circuit is assigned to a particular cell. For mapping a digital circuit to the CMOL cell we have to first convert the circuit in to NOR gate form. In this paper we have present ...

Sustainability of transportation has become one of the most significant issues in the world due to the increasing global warming concerns. There has been a growing interest in improving the performance of the transportation systems using sustainability concepts. In this study, we use some social and environmental measures to assess the sustainability of transportation, such as accessibility of ...