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Depending on the current fast-growing Web virtual reality technology, a Web three-dimensional virtual geographic laboratory based on real geographic laboratory is created by VRML. Interaction between the user and the scene is achieved through the integrated use of ASP and JavaScript technologies. Students can access anytime and anywhere to the virtual environment to interact with objects in the three-dimensional...
An Automatic Pipeline, Inventory and Order Based Production Control System (APIOBPCS), which is firstly proposed by Towill in 1982, lies at the heart of many commercial and bespoke ordering systems based on periodic review of stock and production targets. This simple and elegant control system works well, even when dealing with scenarios in which there are many competing value streams. However, when...
An important contributory factor to the bullwhip effect is the non-lead-time in the supply chain. This paper investigates the influences of production/distribution lead-time on the bullwhip effect under order-up-to (OUT) policy using control engineering method, comparing the performances of order rate and inventory level in different lead-time situations. When the lead-time is longer, the order rate...
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