In this paper, we study the location routing problem with replenishment facilities (LRPRF), an extension of the location routing problem (LRP) where the vehicles can replenish at some replenishment facilities. Vehicles leave the depot with load on-board, serve customers until out of load, and then either return to a replenishment facility to reload or return to the depot, completing their route...

Title of Dissertation: ONLINE INVENTORY REPLENISHMENT AND FLEET ROUTING DECISIONS UNDER REAL-TIME INFORMATION Ricardo Giesen, Ph.D., 2007 Dissertation Directed By: Professor Hani S. Mahmassani, Civil and Environmental Engineering Department Logistics managers rely on increasingly sophisticated technologies to track demand and associated inventories, allowing rapid response to meet anticipated d...

This paper studies spare part transshipments between two service part facilities whose demands are correlated. Transshipments are used to reduce severity of part stock outs. Facilities are run by an inventory manager (IM) who minimizes replenishment, transshipment, and inventory costs. We show that the optimal transshipment policy is an inventory hold-back type; if the part inventory at a facil...

We address the value of information (VOI) sharing in the context of a two–echelon, serial supply chain with one retailer and one supplier that provides a single perishable product to consumers. We evaluate information sharing under two supply chain structures where the retailer shares it inventory level and replenishment policy with the supplier. In the first structure, referred to as Decentral...

The increased globalization of trade has resulted in greater emphasis on Supply Chain Management. The planning and control strategy used to regulate the flow of goods is important in determining performance. Objectives are often stated in terms of meeting delivery requirements while minimizing distribution chain inventory. Distribution Requirements Planning (DRP) and Order Point replenishment s...

inventory models play an important role in determining the optimal ordering and pricing policies. much work has been reported in literature regarding inventory models with finite or infinite replenishment. but in many practical situations the replenishment is governed by random factors like procurement, transportation, environmental condition, availability of raw material etc., hence, it is nee...

Cones release glutamate-filled vesicles continuously in darkness, and changing illumination modulates this release. Because sustained release in darkness is governed by vesicle replenishment rates, we analyzed how cone membrane potential regulates replenishment. Synaptic release from cones was measured by recording postsynaptic currents in Ambystoma tigrinum horizontal or OFF bipolar cells evok...

This paper presents an inventory model for deteriorating items over a ®nite time horizon where the demand increases linearly with time. The method is developed by assuming that the successive replenishment cycle lengths are the same. Many O.R. scientists/researchers obtained an optimal replenishment schedule where the replenishment cost is constant in each cycle length over the ®nite time horiz...