Sediment deprivation from dam installments contributes to beach erosion yet the underlying physical and economic factors linking them together have traditionally been isolated during regional planning. In order to gain a better understanding of the behavior of a managed beach system, a dynamic simulation model was developed incorporating physical and monetary factors influencing the amount of a...

This paper discusses how a vendor manages multiple products within its multiple non-identical retailers operating under a vendor managed inventory (VMI) contract that allows unequal shipment frequencies to the retailers. The vendor replenishment cycle for each product is taken to be an integer multiple of the retailer replenishment cycle where vendor is penalized for exceeding the upper stock l...

Short-term synaptic plasticity, the dynamic alteration of synaptic strength during high-frequency activity, is a fundamental characteristic of all synapses. At the calyx of Held, repetitive activity eventually results in short-term synaptic depression, which is in part due to the gradual exhaustion of releasable synaptic vesicles. This is counterbalanced by Ca(2+)-dependent vesicle replenishmen...

Communication and transparent procedures must translate into robust processes to ensure on-time delivery of components, lower inventories, and a faster response to changing customer demands. This thesis is based on research done at the equipment manufacturing division (HPISM) of Eastrnan Kodak Company. The focus is on the development of a JIT replenishment process and inventory management pract...

At the first synapse in the vertebrate visual pathway, light-evoked changes in photoreceptor membrane potential alter the rate of glutamate release onto second-order retinal neurons. This process depends on the synaptic ribbon, a specialized structure found at various sensory synapses, to provide a supply of primed vesicles for release. Calcium (Ca(2+)) accelerates the replenishment of vesicles...

We consider a two echelon supply chain where a single retailer holds an inventory of finished goods to satisfy an i.i.d. customer demand, and a single manufacturer produces the retailer’s replenishment orders on a make-to-order basis. The objective of this paper is to analyse the impact of the retailer’s replenishment policy on total supply chain performance. We consider two strategies with reg...

Given the order cycles of items in joint replenishment, no closed-form formula or efficient method is known to compute the exact inventory cost. Previous studies avoid the difficulty by restricting the replenishment policy to the cases where the order cycle of each item is a multiple of the cycle of the most frequently ordered item. This simplifies the computation but may entail sub-optimality ...

This paper presents a study of solving the joint replenishment problem (JRP) by using the RAND method, a heuristic approach that has been proven to find almost as good as optimal solutions, under uncertain customer demands and inaccurate unit holding cost estimation. The classical JRP deals with the issue of determining a replenishment policy that minimizes the total cost of replenishing multip...

During a research project to improve the performance and operation of shower dips, a series of measurements of the diazinon based dip-wash concentrations were taken. These measurements, although not replicated, indicated that the concentrations were falling to levels which were considered to be too low. As a result a replicated trial was conducted on the same shower dip, modified as per the fin...

Inventory record inaccuracy is a significant problem for retailers using automated inventory management systems. While investments in preventative and corrective measures can be effective remedies, gains can also be achieved through inventory management tools that account for record errors. In this paper, we consider intelligent inventory management tools that account for record errors using a ...