This part studies two problems: transportation model of delivery stock cost and inventory model for unconfirmed lead time.
在此基础上重点研究了两个问题，即考虑在途库存成本的运输模型以及需求与前导时间不确定的存储模型。
Based on the analysis and the characteristics of timber transportation, the mixed transportation model was built with nonstop and secondary transportation.
在分析木材运输过程的基础上，结合木材运输的特点，建立了木材直达、中转混合运输问题的数学模型。
After the diagram model of order and transportation model of the steel pipe is built, change-edge and optimizing methods were introduced and an optimal solution was achieved.
利用图论知识建立了钢管订购和运输的二部图模型，提出了去边法与方案的优化调整方法，得到了问题的最优解。
In this paper, a dynamic transportation model with multiple criteria and multiple constraint levels (DMC2) is formulated. An algorithm is developed to solve such DMC2 transportation problems.
构造了多目标多约束水平(MC2)动态运输问题的数学模型，开发了求解这一模型的迭代算法。
At the same time, this paper also introduces ant colony algorithm application in transportation model, bring forward increment traffic assignment model based on improved ant colony algorithm.
同时，还介绍了蚁群优化算法在交通模型中的应用，提出基于改进蚁群算法的增量交通分配模型。
The classical transportation model (the output can satisfy the demand or not) can draw up the economical transportation quantity to minimize the whole cost when there is only one kind of material.
经典的运输模型(产销平衡或产销不平衡)只能进行一种物料的运量分配，从而实现总运费最小的目标。
In this paper, SLF for Dahao District, Shantou City is made, using fuzzy evaluation and transportation model to achieve optimal land allocation. The forecast results can satisfy the practical demands.
对此，采用了模糊评分、运输模型求解最优等手段，对汕头市达濠区进行了空间负荷分布预测，其结果能够满足实际工作中的要求。
In this paper, SLF for Dahao District, Shantou City is made, using fuzzy evaluation and transportation model to achieve optimal land allocation. The forecast results can satisfy the practical demands.
对此，采用了模糊评分、运输模型求解最优等手段，对汕头市达濠区进行了空间负荷分布预测，其结果能够满足实际工作中的要求。
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