The items that incur a gradual loss in quality or quantity over time while in inventory are usually called deteriorating items. In reality, there are some items whose value or utility or quantity increase with time and those items can be termed as ameliorating items. In this paper, an effort has been made to incorporate these two opposite physical characteristics of stored items into inventory ...

todays, improving the competitiveness of companies and rapidly responding to diverse customers’ demands requires efficient management of the supply chain. integration is one of the effective indices in a supply chain, and vendor managed inventory (vmi) is one of the innovative approaches in this field. in this paper, an integrated model based on a vmi system for deteriorating and ameliorating i...

This paper is concerned with the development of a production inventory model for both ameliorating and deteriorating items. Given an inventory goal level and a production goal rate set by the production facility, and given penalties for the inventory level and for the production rate to deviate from their respective targets, a system total cost objective function is derived. We seek the optimal...

In a recent article published in European Journal of Operational Research, 162 (2005) 773–785, Moon et al. [1] develop economic order quantity models (A, A1, and B) for deteriorating/ameliorating items which have time-varying demand pattern over a finite planning horizon, taking account of inflation and time value of money. Although the formulation of the total cost function in all the models i...

This research paper deals with an inventory replenishment model for both deteriorating and ameliorating items under linear trend in demand over a fixed time horizon. aimed to develop the shortages which are partially backlogged. The is developed fuzzy environment. Optimal technique used solve considering Signed Distance Method (SD). ordering cost, purchase holding shortage cost opportunity all ...