基于李雅普诺夫优化的铁路集装箱货运站间空箱协同调运研究

铁路集装箱空箱供应与需求的不平衡,导致多个集装箱货运站间空箱需要协同调运。针对空箱调运的动态性、实时性特点,建立以计划周期内整个运输网络空箱调运总费用最小为目标函数的铁路集装箱多时段空箱调运优化模型。该模型为全局优化问题,直接求解较为困难,因而运用李雅普诺夫优化方法简化模型,将全局优化问题转化为多个单一时段问题,且从理论上证明转化后的问题等价于原问题。利用数学软件对简化后的模型进行求解,通过算例分析验证所提出模型的正确性和有效性,实现计划周期内多个铁路集装箱货运站间空箱的最优动态调度。

Research on telecommunication resale service supply chain coordination with revenue-sharing contract

The competition and cooperation between traditional telecom operators and resale operators in the supply chain are discussed, when the telecom industry developed telecommunication resale service. Supply chain contract is an effective way to coordinate the supply chain. This paper analyzes the revenue-sharing contract between telecom operators and resale operators. The study shows that by setting up a rational revenue-sharing ratio and wholesale price, a revenue-sharing contract can coordinate this supply chain, and telecom operators and resale operators can achieve a 'win-win' solution.