Classical Economic Manufacturing Quantity (EMQ) models have usually ignored the possibility of process deterioration and the existence of defective items in the production lot. Moreover, the use of machine inspection for maintenance and restoration purposes has not been considered. On the other...

The multi-item joint replenishment problem is generalized to allow ordering costs to be dependent on the specific items jointly supplied. A fixed cycle approach is examined in which all the items of a group are always jointly replenished. A dynamic programming algorithm is developed for...

The optimal boundaries for class-based AS/RS systems are determined. A solution procedure is developed which requires only a one-dimensional search procedure. It is shown that most of the potential improvement in the expected one-way travel time can be obtained when the warehouse is divided into...