ISSN:0160-5682    

DOI:10.1057/jors.1963.1

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0160-5682    

DOI:10.1057/jors.1963.2

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0160-5682    

DOI:10.1057/jors.1963.3

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0160-5682    

DOI:10.1057/jors.1963.4

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0160-5682    

DOI:10.1057/jors.1963.5

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0160-5682    

DOI:10.1057/jors.1963.6

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

摘要:

AbstractWhere sets of similar transportation problems are solved independently a great deal of information is wasted. A routine which has been used successfully is described; it is for use in conjunction with the Ford and Fulkerson method for solving the transportation problem, and utilizes the information provided by the optimum solution to one problem to give a good initial solution to the later problems.A similar routine could be easily developed for use with the Stepping Stone method.

ISSN:0160-5682    

DOI:10.1057/jors.1963.7

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

摘要:

AbstractThe following replacement problem is considered.Nitems, which are subject to failure, can be divided into two groups distinguished by the fact that the individual replacement cost in one group is higher than in the other. A strategy is required to minimize replacement costs. In some cases the cheapest policy is to replace each item, when it fails, by a new item. However, the paper shows that this policy can usually be improved upon by what is called a two-stage policy. In a two-stage policy the failures in one group are replaced by new items; those in the other group are replaced by items already operating in the first group. Under some circumstances it is shown to be worth while to create a second group. Formulae are given for calculating the optimum two-stage strategies for any life distribution, but the emphasis is on the formulation of general conditions under which two-stage schemes are preferable to simple replacement. Some extensions and generalizations are briefly indicated.

ISSN:0160-5682    

DOI:10.1057/jors.1963.8

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0160-5682    

DOI:10.1057/jors.1963.9

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0160-5682    

DOI:10.1057/jors.1963.10

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor