We propose an alternative algorithm for solving continuous review inventory model problems for deteriorating items over a finite horizon. Our interest focuses on the case of time–dependent demand and backlogging rates, limited or infinite warehouse capacity and taking into account the time value of money. The algorithm is based on Particle Swarm Optimization and it is capable of computing the n...

We study the effects of different pricing strategies available to a continuous review inventory system with capacitated supply, which operates in a fluctuating environment. The system has a single server with exponential processing time. The inventory holding cost is nondecreasing and convex in the inventory level, the production cost is linear with no set-up cost. The potential customer demand...

In most stochastic inventory models, such as continuous review models and periodic review models, it has been assumed that the stockout period during a cycle is small enough to be neglected so that the average number of cycles per year can be approximated as D/Q, where D is the average annual demand and Q is the order quantity. This assumption makes the problem more tactable, but it should not ...

In most stochastic inventory models, such as continuous review models and periodic review models, it has been assumed that the stockout period during a cycle is small enough to be neglected so that the average number of cycles per year can be approximated as D/Q, where D is the average annual demand and Q is the order quantity. This assumption makes the problem more tactable, but it should not ...

this paper develops a mathematical model using differential equations and considers a bullwhip effect in a supply chain network with multiple retailers and distributors. to ensure the stability of the entire system and reduce the bullwhip effect, a robust control method and an inventory replenishment policy are proposed. this shows that the choice of the output matrix may reduce the bullwhip ef...

This paper presents and quantifies some of the opportunities of E-business tools to material flow effectiveness. The study was developed at a Brazilian drug distribution system. Results are based on comparing historical data against the simulation of an alternative, which manages the distribution process employing an E-business solution embedded with simple replenishment methods to coordinate t...

We consider a single stage periodic-review inventory system with backorders and dual sourcing: Replenishment can occur through a regular channel and/or a more expensive expedited channel with a smaller lead time. Globally optimal policies for these problems are in general highly complex; we therefore introduce a simple class of heuristic base stock policies. We call our class of policies the si...

1 Robert Winston Brown, RMIT University, PO Box 2476V Melbourne Australia, 3001, [email protected] Abstract Whilst much attention is paid to the quality and the avenues of presentation of educational material, there seems to be little consideration given to human physiological processes of information ingestion and assimilation when planning the educational experience. Human visual and aural info...