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The main components of the inventory control system are analyzed. The dynamic inventory control model of vulnerable articles is built by focusing on the characteristics of the vulnerable articles, introducing the lost time and loss factor of articles to calculate the inventory loss cost and on the condition of considering the bulk price discount and safety(More)
Currently, with the galloping development of logistics in our country, a great number of logistics parks are being built somewhere. However, many of them lack a general layout planning. In this paper is first analyzed the principles of layout planning of regional logistics park and is put forward the layout planning method of logistics park in combination(More)
In the system of urban public transportation, the primary contradiction is contest with service object between convention public buses and urban rail transit at present. The analysis of this study is based on the passenger trip cost, and the ecological niche character of convention public buses and urban rail transit are studied. The passenger trip cost(More)
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