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Preventive maintenance policies are also planned so that the overall reliability. The optimal level of preventive maintenance that maxipreventive maintenance. Maintenance policies can be further improved when they.We design an optimal preventive maintenance policy for a system of N items. An optimal maintenance policy for a system of N items, from a particular class of.Taken into considerations...

Evolutionary algorithms are frequently applied to dynamic optimization problems in which the objective varies with time. It is desirable to gain an improved understanding of the influence of different genetic operators and of the parameters of a strategy on its tracking performance. An approach that has proven useful in the past is to mathematically analyze the strategy's behavior in simple, id...

An algorithm is given for finding the minimum weight extension of a prefix code. The algorithm runs in 0(n3), where n is the number of codewords to be added, and works for arbitrary alphabets. For binary alphabets the running time is reduced to O(n*), by using the fact that a certain cost matrix satisfies the quadrangle inequality. The quadrangle inequality is shown not to hold for alphabets of...