Closed-loop supply chain systems are increasingly attracting attention because of cost competition, resource constraints and environmental issues. Electronic products are of particular concern due to short lifecycles and hazardous material used in production. We formulate the closed-loop product lifecycle system with stochastic dynamic programming methodology. By applying the reverse logistics ...

Due to the latest developments in European environmental legislation, producers will be responsible for collecting, sorting and recycling of discarded products at the end of their service life. They will be charged by the total recycling costs which leads to higher lifecycle costs of their products. Therefore, a close cooperation with recycling companies and their integration in producers suppl...

in order to solve the problem of fuel pollution, the diesel fuel for power generation of marine was abandoned and shore power supply have been proposed at the historic moment. the shore power supply which needs transferring 380v/50hz to 450v/60hz is used on shipping who need this kind of power, so effectively curbs the emissions of pollution gas into the air, and achieves the purpose of improvi...

1. In open loop, the velocity response depends on the mechanical time constant of the DC machine (time response) and the value of the power supply. Indeed, for each value of power supply, a velocity value is reached in steady state. Therefore the DC machine can reach any value of velocity which depends only of the power supply. In this case no possibility to improve performances. 2. For a speci...

Sustainable product lifecycle systems are attracting increasing attention because of cost competition, resource constraints and environmental issues. Short lifecycle products, such as consumer and defense electronics, are of particular concern. We formulate a closed-loop supply chain with Stochastic Dynamic Programming method. By applying the concept of a sustainable product lifecycle, guidelin...