Aggregate production planning (APP) is a medium-term capacity planning to determine the quantity of production, inventory and work force levels to satisfy fluctuating demand over a planning horizon. The goal is to minimize costs and instabilities in the work force and inventory levels. This paper is concentrated on multi-period, multi-product and multi-machine systems with setup decisions. In t...

In this paper a multivariate quality control procedure is offered in which several correlated stages are present in production systems and in each stage there are several correlated control variable. Using Hotelling's T2 statistic, first, each stage is tested for being out of control. Then out of control variables are selected using Murphy's method. The remainder of the research involves evalua...

lean manufacturing is a systematic approach to identifying and eliminating wastes (non-value added activities) through continuous improvement by conveying the product at the pull of the customer in pursuit of production. in a more basic term, more value with less work. since lean manufacturing eliminates many of the problems associated with poor production scheduling and line balancing, lean ma...

This paper presents an approach for a holistic simulation of forging processes considering the interactions between forging press, tooling system and forging process. It can be used in coupled simulations and will enable industrial users in forging industry to do simulation-aided tool optimizations in the design stage of newly developed forging dies. The final aim is to reduce the time-consumin...

research results and facts of indigenous sheep production were reviewed with the aim of delivering relevant information for the beneficiaries. the common production system used in ethiopia was the extensive type, which was characterized by small flock sizes and the flock being periodically devastated by diseases. some indigenous sheep groups of the country were characterized and their names wer...

The design and management of a multi-stage production/distribution system is one of the most critical problem in logistics and in facility management. This manuscript deals with the so called facility locationallocation problem, i.e. with the simultaneous decisions regarding the design, management, and control of a distribution network. In particular the logistic problem object of this study de...