This paper investigates an optimal capacity expansion policy for innovative product in a context of one supplier and one retailer. With a fully deductible contract, we employ the Stackelberg game model to examine the negotiation process of capacity expansion in a single period. We first derive the retailer’s optimal reservation strategy and then characterize the optimal capacity expansion polic...

The combination of demand uncertainty and a lead time for adding capacity creates the risk of capacity shortage during the lead time. We formulate a model of capacity expansion for uncertain exponential demand growth and deterministic expansion lead times when there is an obligation to provide a specified level of service. The service level, defined in terms of the ratio of expected lead time s...

presence of distributed generation (dg) in electric distribution systems provides an attractive new alternative in capacity expansion planning of these systems. in this paper a new model is developed for solving simultaneous placement of hv/mv substations and dg units as a static planning tool. this model aims to minimize fixed and variable costs of planning. constraints related to dgs, substat...

Non-parametric DEA is a technique on the basic of mathematical programming to determine the efficiency of homological decision making units. DEA models changes in demand cause changes in variations in output levels and also will cause changes in a firm’s inefficiency. Often a firm can adjust input influencing on the output level. Models designed with technique on DEA that considers changes in d...

in this paper, firstly by using a mixed linear programming a new model of locating facilities with limited capacity is presented to design a closed-loop supply chain in a multi-product and multi-period mode. then, using a robust optimization approach, the proposed model decreases in non-deterministic expansion. the results show that the proposed model can handle facility capacity in a closed lo...

Since the Nara Hydropower Station was put into operation, it has far exceeded designed service life of 25 years. The generator insulation is seriously aging, water leakage turbine large, working efficiency unit low, operation failure occurs frequently, and hidden safety problems are prominent. At present, upstream cascade power station leading reservoir have been constructed hydraulic resources...