a r t i c l e i n f o a b s t r a c t MSC: 35L65 93B05 93C20 Keywords: State controllability Nodal profile controllability Conservation law Nonlocal velocity Re-entrant manufacturing system In this paper, we study the state controllability and nodal profile controllability for a scalar conservation law, with a nonlocal velocity, that models a highly re-entrant manufacturing system as encountere...

This paper deals with a flexible multi-station manufacturing system modelled by re-entrant queueing model. Our model incorporates classical queueing systems with exponential service times and controlled arrival process under a priority service discipline. The system is decomposed into N 230 M. Boualem et al. fundamental multi-productive stations and 2N – 1 classes, a part follows the route fixe...

-There has been a lot of research about scheduling manufacturing systems with dispatching rules in the past. However, most studies concentrate on simplified scenarios considering only one type of resource, usually machines. In this study dispatching rules are applied to a more realistic scenario, which is dual constrained by machines and operators and has a re-entrant process flow. Interdepende...

The presence of hot lots or high-priority jobs in semiconductor manufacturing systems is known to significantly affect the cycle time and throughput of the regular lots since the hot lots get priority at all stages of processing. In this paper, we present an efficient analytical model based on re-entrant lines and use an efficient, approximate analysis methodology for this model in order to pre...

This paper presents the development of an alternative method for makespan computation algorithms of a re-entrant flow shop scheduling problem using bottleneck analysis. The computation is specifically intended for the cyber manufacturing centre (CMC) which is an Internet based collaborative design and manufacturing services at Universiti Tun Hussein Onn Malaysia. The CMC processes scheduling re...

This article studies a hyperbolic conservation law that models a highly re-entrant manufacturing system as encountered in semi-conductor production. Characteristic features are the nonlocal character of the velocity and that the influx and outflux constitute the control and output signal, respectively. We prove the existence and uniqueness of solutions for L-data, and study their regularity pro...

The assumption of classical shop scheduling problems that each job visits each machine only once (Baker, 1974) is often violated in practice. A new type of manufacturing shop, the reentrant shop has recently attracted attention. The basic characteristic of a re-entrant shop is that a job visits certain machines more than once. For example, in semiconductor manufacturing, consequently, each wafe...