boisterous 发表于 2025-3-25 07:22:18
https://doi.org/10.1007/1-4020-2545-9materials need to be supplied from various sources to sites of manufacturing; finished goods are transported from factory to depots or supplied direct to customers; children are transported to and from school by bus; customer orders and enquiries ‘travel with’ a commercial traveller from actual andPhagocytes 发表于 2025-3-25 08:17:31
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https://doi.org/10.1007/978-1-4614-7538-5d for. This chapter extends the basic theory in several directions. Section 10.1 deals with dynamic (or time varying) flows, non-conserved flows and multi-commodity flows as well as some simple modifications to the basic theory. Section 10.2 centres around the concept of least cost flow of a particuImmunization 发表于 2025-3-25 17:00:57
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http://reply.papertrans.cn/39/3880/387956/387956_25.png金丝雀 发表于 2025-3-26 03:49:55
Branch-and-bound Methods,s actually made, and the branches from x represent the possible x‘choices of action at .. The problem of finding an optimal composite decision is equivalent to the problem of finding an optimal path from the root to a terminal node in a search tree (see section 2.4), and one technique for achievingIndicative 发表于 2025-3-26 06:31:31
http://reply.papertrans.cn/39/3880/387956/387956_27.png表示向前 发表于 2025-3-26 12:18:48
Project Networks,t is the construction of a house, the launching of a new product or putting a satellite into space. Any such planning system should (Lock, 1971).For simple projects bar charts may be appropriate, but for more complex ones the critical path method (CPM) is to be preferred. Network aspects of this and增强 发表于 2025-3-26 15:15:38
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Distribution Problems,materials need to be supplied from various sources to sites of manufacturing; finished goods are transported from factory to depots or supplied direct to customers; children are transported to and from school by bus; customer orders and enquiries ‘travel with’ a commercial traveller from actual and