On (s,S) inventory system with random lead time and repeated demands

ON (s,S) INVENTORY SYSTEM WITH RANDOM LEAD TIME AND REPEATED DEMANDS

We consider an (s,S) inventory system with random lead time and repeated demands of unsatisfied demands from the orbit. Whenever the inventory level falls to the level s, an order is placed to bring the level to S. The quantity ordered is M = S− s. Demands to the system are served immediately if there is a positive inventory. Otherwise it will go to a pool of unsatisfied customers called orbit....

Perishable Inventory System with a Finite Population and Repeated Attempts

On an Inventory Control Model with Random Lead Time and Random Demand

A single-product inventory control model with different distributions of demand for goods and random lead time is considered. The proposed model uses the regenerative approach. It gives possibility to find optimal values of reorder point and order quantity. Criterion of optimization is minimum of average expenses for goods holding, ordering and losses from deficit per a time unit. Suggested mod...

Integrated Inventory Model with Controllable Lead Time Involving Investment for Quality Improvement in Supply Chain System

The purpose of this article is to investigate a two-echelon supply chain inventory problem consisting of a single-vendor and a single-buyer with controllable lead time and investment for quality improvements. This paper presents an integrated vendor-buyer inventory model in order to minimize the sum of the ordering cost, holding cost, setup cost, investment for quality improvement and crashing ...

Continuous Review Perishable Inventory System with OneSupplier, One Retailer andPositive Lead Time

We consider a two-echelon single commodity inventory system with one warehouse(supplier) at the higher echelon and one retailer at the lower echelon. The retailer stocks individual items of a commodity and satisfies unit demands which occur according to a Poisson process. The supplier stocks these items in packets and uses these packetsto: (i) satisfy the demands that occur for single packet an...