Design of Cellular Manufacturing System involves four major decisions: Cell formation (CF), Group layout (GL), Group scheduling (Gs) and Resource assignment (RA).  These problems should be regarded, concurrently, in order to obtain an optimal solution in a CM environment. In this paper a two stage heuristic procedure is proposed for CF and RA decisions problem. The solution approach contains a ...

In this article, a novel integrated mixed-integer nonlinear programming model is presented for designing a cellular manufacturing system (CMS) considering machine layout and part scheduling problems simultaneously as interrelated decisions. The integrated CMS model is formulated to incorporate several design features including part due date, material handling time, operation sequence, processin...

In today’s business world, competitiveness defines as an industry leader to drive towards maximum efficiency and it is constantly at the forefront of the companies objectives. Managers across the country are striving to adopt lean manufacturing practices to improve their bottom line cellular manufacturing and it helps to build a variety of products with as little scrap as possible. Layout a fac...

An important step in today’s Integrated Circuit (IC) manufacturing is optical proximity correction (OPC). While OPC increases the fidelity of pattern transfer to the wafer, it also significantly increases IC layout file size. This has the undesirable side effect of increasing storage, processing, and I.O. times for subsequent steps of mask preparation. To alleviate the growing volume of layout ...

intra-abdominal desmoplastic small round cell tumor is a rare entity with a few reports worldwide. this tumor commonly occurs in children and adolescent and occurrence in adult age group is very rare. here, we describe an adult male with symptoms of intestinal obstruction due to abdominal mass, located in splenic flexure. after resection, the diagnosis of intra-abdominal desmoplastic small roun...

in this paper, a mixed-integer linearized programming (minlp) model is presented to design a group layout (gl) of a cellular manufacturing system (cms) in a dynamic environment with considering production planning (pp) decisions. this model incorporates with an extensive coverage of important manufacturing features used in the design of cmss. there are also some features that make the presented...

This mathematical model forms machine cells, optimises the costs of unassigned machines and components, designs shop floor cell layout to have minimal movement materials. The complete similarity measure algorithm cells part families in a refined form. Later, exceptional elements are eliminated optimisation by using duplication sub-contracting parts. Then is designed optimised material movements...

The recent improvement of VLSI process technologies enables us to integrate a large number of transistors on one chip, and significantly improves the circuit performance. On the other hand, the methodology of VLSI design becomes more and more complex and some new problems, such as Design For Manufacturability (DFM) have arisen. Due to the very high costs associated with the manufacturability of...

This paper investigates the problem of designing cellular manufacturing systems incorporating several design features including multi-period production planning, sequence of operations, alternate process routings, intra-cell layout, dynamic system reconfiguration, duplicate machines, machine capacity, lot splitting, and material flow between machines in a dynamic environment. The problem is for...