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11.
D. E. Matthews 《海军后勤学研究》1977,24(3):457-462
A simple method is presented for deriving the mean and variance of the queueing time distribution in an M/G/1 queue when the priorities assigned to customers have an assignment probability distribution. Several examples illustrate the results. The mean and variance of the queueing time distribution for the longest service time discipline are derived, and its disadvantages are discussed. 相似文献
12.
Russia's 2006 renationalisation of its aerospace industry heralded a new era in industrial policy. Symbolising a return to the importance of securing sovereignty over the Federation's strategic assets, it also posits, powerfully, that sectors like aerospace and shipbuilding are too important to be left to the market. In what now appears a reversal of this policy approach, Moscow is promoting partial privatisation and encouraging partnership with Western aerospace companies. Foreign infusion of capital and technology is viewed as the catalyst for Russian dominance in the global military and commercial aerospace industries. 相似文献