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This paper focuses on a closed-loop production planning and inventory control problem commonly encountered in the real manufacturing practice. We firstly present a deterministic model for this particular problem with several features such as remanufacturing and one-way substitution. Then we take into consideration the uncertainty of the new item demand, the remanufactured item demand and the returned...
The classic newsvendor model normally deals with single factor and single period, where the purchase timing, the time-variant variance of the demand and guaranteed delivery time are neglected. This paper simultaneously considered the above three factors and presented a newsvendor model embedded with time-factors, in the background of two stage supply chain whose products were of time-effectiveness...
Travel time reliability is of great importance for evaluating the service level of public transit. If service level is expected to effectively improve, the travel time reliability must be enhanced. This paper proposed a novel model for setting up bus lane in urban area with the constraint of travel time reliability. The objective function is to minimize the setting up fare of bus lane. This model...
This paper proposed a novel model to evaluate the service level of public transit in peak hour. The evaluation index are selected by using analytic hierarchy process, which includes travel time reliability, punctual arrival reliability, capacity reliability, driving skills of drivers, crowing level of vehicle, vehicle environment, and economical ticket price. The quantitative value of satisfaction...
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