Showing 1 - 10 of 513
In this paper, new repair and rescheduling algorithms are developed for the unrelated parallel machine environment. The … decision maker to easily determine the most appropriate repair/rescheduling rule depending on the performance measure … performance measures to ensure the optimisation of both the schedule quality and stability. Schedule quality is assessed based on …
Persistent link: https://www.econbiz.de/10005236946
This study addresses robust scheduling for a flexible job-shop scheduling problem with random machine breakdowns. Two objectives – makespan and robustness – are simultaneously considered. Robustness is indicated by the expected value of the relative difference between the deterministic and...
Persistent link: https://www.econbiz.de/10010594368
A multi-chip package (MCP) consists of several chip modules in a single package. We consider a scheduling problem for assembling MCPs. In order to assemble an MCP, a lot should repeat assembly process stages such as die attach and wire bonding as many as the number of chips to be assembled. The...
Persistent link: https://www.econbiz.de/10009352922
Economic lot sizing and batching models often assume reliable manufacturing facilities. In this research, we focus on the effects of machine breakdowns and corrective maintenance on the economic lot sizing decisions. Two production control policies are proposed for coping with these stochastic...
Persistent link: https://www.econbiz.de/10009191808
The production and delivery of rapidly perishable goods in distributed supply networks involves a number of tightly coupled decision and optimization problems regarding the just-in-time production scheduling and the routing of the delivery vehicles in order to satisfy strict customer specified...
Persistent link: https://www.econbiz.de/10010731301
This paper deals with the robust optimization for the cyclic hoist scheduling problem with processing time window constraints. The robustness of a cyclic hoist schedule is defined as its ability to remain stable in the presence of perturbations or variations of certain degree in the hoist...
Persistent link: https://www.econbiz.de/10010939793
An unpredictable breakdown often occurs and tends to complicate production scheduling in a steelmaking-continuous casting (SCC) plant. Because of particular characteristics and technology constraints of the SCC plant, traditional robust scheduling often provides an excessively conservative...
Persistent link: https://www.econbiz.de/10011278973
The production and delivery of rapidly perishable goods in distributed supply networks involves a number of tightly coupled decision and optimization problems regarding the just-in-time production scheduling and the routing of the delivery vehicles in order to satisfy strict customer specified...
Persistent link: https://www.econbiz.de/10005288581
Efficient production resettings are necessary to achieve production flexibility. For this reason, most modern companies are trying to reduce the setup time required to switch the production from one product type to another. One way to minimise these times is to schedule correctly the various...
Persistent link: https://www.econbiz.de/10005754457
Efficient production resettings are necessary to achieve production flexibility. For this reason, most modern companies are trying to reduce the setup time required to switch the production from one product type to another. One way to minimise these times is to schedule correctly the various...
Persistent link: https://www.econbiz.de/10008563643