We developed a mixed integer linear programming model for an integrated decision problem of production, inventory, and transportation planning. Our model combines the direct shipment into the production, inventory, and distribution planning. The objective was to minimize the total operation cost which is comprised of production setup cost, inventory holding cost, transportation cost, and reorde...

Vendor managed resupply is an emerging trend in logistics and refers to a situation in which a supplier manages the inventory replenishment of its customers. Vendors save on distribution cost by being able to better coordinate deliveries to different customers, and customers do not have to dedicate resources to inventory management anymore. We present and discuss the inventory routing problem. ...

In this paper we consider a stochastic inventory system with production, remanufacturing, and disposal operations. Customer demands must either be fulfilled from the production of new products or by the remanufacturing of used products. Used products are either remanufactured or disposed of. To coordinate production, remanufacturing and disposal operations efficiently, we extend the PUSH and PU...

A typical discrete-time sequential decision problem involves a system whose state is assumed to evolve either deterministically or probabilistically over time-periods that are often called stages. This evolution is affected by the decisions a planner makes at the beginning of each stage after observing the system state. The decision maker’s goal then is to optimize some measure of system perfor...

The aim of this paper is to propose tools to adapt and parameterize the Material Requirement Planning (MRP) method under lead time uncertainty. We study multi-level assembly systems with one type of finished products and several types of components. We consider that each component has a fixed unit inventory cost and the finished product has a backlogging cost per unit of time. The lead times of...

We consider an infinite horizon production planning problem with non-stationary, convex production and inventory costs. Backlogging is allowed unlike related previous work and inventory cost is interpreted as backlogging cost when inventory is negative. We create finite horizon truncations of the infinite horizon problem and employ classic results on convex production planning to derive a close...

We propose a tactical model which integrates the replenishment decision in inventory management, the allocation of products to warehousing systems and the assignment of products to storage locations in warehousing management. The purpose of this article is to analyse the value of integrating warehouse and inventory decisions. This is achieved by proposing two methods for solving this tactical i...

abstract background and aim: the purpose of the present research was to validating the revised dyadic adjustment scales for marital quality in men and women referred in sanandaj counseling centered. methods: disgn is a study of correlation sort (factor analysis of tendentious oblimin rotation sort). in this research 384 subjects(women and men) were selected from clients in sanandaj counseling c...

1 The paper discusses the main requirements that are posed by customized mass production towards managing production networks. Special emphasis is put on real-time, cooperative behaviour. We present a large-scale national industry-academia R&D project aimed at improving the performance of a production network that produces consumer goods in large quantities and variability. An integrated approa...

cellular manufacturing system is one of the most important applications of group technology. design of this system involves many structural and operational issues, in which the cell formation and production planning are two important steps. in this paper, a new mathematical model is proposed for integration of cell formation and production planning problems with the aim of minimizing the overal...