Manufacturing systems for today's products are complex requiring a variety of different processes in order to be able manufacture all necessary part features. This also applies the production rotating components, which have experienced increasing demand at latest due growth mobility. As almost every manufacturing process, quality-reducing defects can occur deviations example tool wear, cannot a...

We develop an efficiency measurement framework for systems composed of two subsystems arranged in series that simultaneously computes the efficiency of the aggregate system and each subsystem. Our approach expands the technology sets of each subsystem by allowing each to acquire resources from the other in exchange for delivery of the appropriate (intermediate or final) product, and to form com...

In this paper we present our results on the performance analysis of a multi-product manufacturing line. We study the influence of external perturbations, intermediate buffer content and the number of manufacturing stages on the production tracking error of each machine in the multi-product line operated under a surplusbased production control policy. Starting by the analysis of a single machine...

A three stage production system is considered in this paper. There are two stages to fabricate and ready the parts and an assembly stage to assembly the parts and complete the products in this system. Suppose that a number of products of different kinds are ordered. Each product is assembled with a set of several parts. At first the parts are produced in the first stage with parallel machines a...

the nigerian rice sector has made remarkable improvement in the last decade as production has increased significantly thereby reducing the gap between domestic supply and demand. in the last three decades, rice imports make up greater proportion of nigerian imports as rice forms a structural component of the nigerian diet. past government inconsistent policies were not successful in securing go...