Results 271 to 280 of about 567,454 (308)

Comparisons of replacement policies

Journal of Applied Probability, 1988
For independent random lifelengths of the units in use stochastic comparisons of the number of failures and removal in [0,s] under age and block replacement policies are performed. A new concept of NBU (NWU) in sequence is introduced.
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Replacement Policies with Repairs

2017
In real situation, the damaged unit has probabilities of minor failures (or malfunctions) at shock times, in which case, minimal repairs that cost less are always considered to resume quickly the operation of unit.
Xufeng Zhao, Toshio Nakagawa
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Are replacement last policies always better than replacement first policies?

IET Conference Proceedings, 2023
J. Wu, C. Qian, T. Dohi
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When Public Policy Replaces Private Ethics

The Hastings Center Report, 1982
nearby fast-food restaurant where he will sit alone at a table for hours. One resident, Mr. Kelly, recently slipped out the front door and did not stop walking for three days. The police picked him up forty miles away, dazed from lack of sleep and still clutching his cardboard suitcase, and brought him back. Mr.
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Continuous and Discrete Age-Replacement Policies

Journal of the Operational Research Society, 1985
For a two parameter cost model \((c_ 1=\cos t\) of replacement at failure, \(c_ 2=\cos t\) of scheduled replacement), cost-minimizing replacement policies \((T^*,N^*)\) are derived, where a unit is replaced preventively before failure at time \(T^*\) of age or at number \(N^*\) of uses.
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The Optimal Replacement Policy

1972
In the previous chapter we artificially restricted the choices available to the landowner in order to simplify our results. We allowed decisions only after floods.
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Replacement Policies for Components That Deteriorate

OR, 1967
For many industrial processes the cost of a component failing in service is sufficient to warrant replacement before failure, but intensive operation of the processes restricts replacement opportunities. A model is proposed where at each opportunity replacement is optional.
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Random Age Replacement Policies

2014
It is well known in reliability theory: (1) When the failure time is exponential, an operating unit should be replaced only at failure and (2) an optimum age replacement is nonrandom [1, p. 86].
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

Equipment Replacement Policy

Journal of the Society for Industrial and Applied Mathematics, 1955
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