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| 1 | A note on Whitney's critical sets显示文摘The critical arc is an arc which is the critical set for some differentiable function not constant along the arc. In literature on the topic, the differentiable functions are always increasing along the arc, but in this paper we provide a critical arc such that the corresponding differentiable function could not be increasing along the arc. It is also proved that any self-similar Cantor set of dimension greater than 1 is a generalized Whitney's critical set. | XILifeng WUMin | 2003 | Progress in Natural Science:Materials International2003，13，2： | 1 |
| 2 | MODELING AND ROBUST DESIGN OF REMANUFACTURING LOGISTICS NETWORKS BASED ON DESIGN OF EXPERIMENT显示文摘The uncertainty of time, quantity and quality of recycling products leads to the bad stability and flexibility of remanufacturing logistics networks, and general design only covered the minimizing logistics cost, thus, robust design is presented here to solve the uncertainty. The mathematical model of remanufacturing logistics networks is built based on stochastic distribution of uncontrollable factors, and robust objectives are presented. The integration of mathematical simulation and design of experiment method is performed to do sensitive analysis. The influence of each factor and level on the system is investigated, and the main factors and optimum combination are studied. The numbers of factors, level of each factor and design process of experiment are investigated as well. Finally, the process of robust design based on design of experiment is demonstrated by a detailed example. | XiaShouchang XiLifeng HuZongwu | 2004 | Chinese Journal of Mechanical Engineering2004，17，3： | 1 |
| 3 | Knowledge-based decision support system for tool management in flexible manufacturing system显示文摘Tool management is not a single, simple activity, it is comprised of a complex set of functions, especially in a flexible manufacturing system (FMS) environment. The issues associated with tool management include tool requirement planning, tool real-time scheduling, tool crib management, tool inventory control, tool fault diagnosis, tool tracking and tool monitoring. In order to make tools flow into/out of FMS efficiently, this work is aimed to design a knowledge-based decision support system (KBDSS) for tool management in FMS. Firstly an overview of tool management functions is described. Then the structure of KBDSS for tool management and the essential agents in the design of KBDSS are presented. Finally the individual agents of KBDSS are discussed for design and development. | ZhouBinghai XiLifeng CaiJianguo | 2004 | Journal of Systems Engineering and Electronics2004，15，4： | 0 |
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