Study On Facility Location Problems In Perishable Products Logistics Network

Facility location problem of perishable products logistics network is to decide how to choose the optimal location strategy to serve the customers in the network. The location strategy lies on its economic profit, personal or social satisfaction and social value. This dissertation focuses on products'perish ability and studies some kinds of location problems on network fundamentally with some innovative perspectives.Firstly, the thesis introduces the backgrounds, the significance, the innovative achievements and the motivations of choosing this topic. In this part, the definition and classification of perishable products is given in detail. After that, the broad usage of location research in perishable products logistics system is summarized. The magnificent significance is addressed and the main goal and contents of this thesis is presented by appraising contemporary world economy, international technology competitive environment and the evolution of consumption notions.Secondly, the thesis reviews the origination, evolution and the literatures of location theories, classifies the researches on location theory and analyzes the characteristics and insufficiencies of theoretic research of location in China. The thesis also appraises the basic location models of emergency system, distribution system and integrated hazardous materials logistics systems. Some heuristic algorithms that employed in network location problems are also introduced.Thirdly, according to the definition and classification of perishable products,the thesis defines lifecycle function of perishable products and analyzes the application skills of lifecycle function in location problems and modeling skills of location problems in perishable products logistics system based on the attentive scrutiny on the relationships of time satisfaction versus customer satisfaction, customer satisfaction versus customer retention.Fourthly, the thesis analyzes the characteristics of perishable emergency system and divides it into two parts, including public emergency system and private emergency system. In public emergency system, a location model of perishable emergency system considering a given deadline and logistics cost minimization is studied. In private emergency system, an emergency service location problem with bi-probability constrains is studied.Fifthly, the thesis analyzes the characteristics of perishable distribution network. A retailer-oriented decision model for selecting cooperation partners in supply chain is studied which considering retailer satisfaction maximization as object. Two kinds of location problems are studied. One is location-allocation model of perishable products distribution system based on budget limitation. The other is AHP based DEA analysis on logistics distribution centre location problem.Sixthly, the thesis analyzes the characteristics of integrated perishable hazardous logistics systems. A class of combined location-routing problems based on network risk bottleneck is studied. Network risk bottleneck limitation is defined. Security cost function is also defined. Cost, risk and risk equity are three objects.Finally, the thesis gives conclusion to the contents and the innovative achievements of the research, and presents the future scope, the purpose and the prospect of this topic in further studies.