Author in this paper describes the possibilities of solving some vehicle routing variants by genetic algorithm. Specifically, it is a classical capacitated vehicle routing problem (CVRP), vehicle routing problem with time windows (VRP-TW), vehicle routing problem with simultaneous deliveries and pick-...
PROBLEM TO BE SOLVED: To provide a fuel cell suitably preventing contact of a fuel cell main part with a high voltage part. SOLUTION: By using the fuel cell 20, even in work (check, maintenance, or the like) exposing a through hole 40 by removing a grommet 42, contact of the finger...
摘要 社会主义经济有哪些模式,国内外经济学者从各种不同的角度作过分类。经济学家刘国光综合各家学说,认为社会主义经济体制可以划分为五种类型。这五种类型是:一、军事共产主义的供给制类型。它的特点是宏观经济活动、企业日常经济活动和家庭(个人)经济... 更多 出版源 CNKI , 1982 (01) :40 收藏 求助...