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The Efficiency of N Machines Uni-Directionally Patrolled by One Operative when Walking Time and Repair Times are Constants

C. Mack, T. Murphy and N. L. Webb
Journal of the Royal Statistical Society. Series B (Methodological)
Vol. 19, No. 1 (1957), pp. 166-172
Published by: Wiley for the Royal Statistical Society
Stable URL: http://www.jstor.org/stable/2984003
Page Count: 7
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Efficiency of N Machines Uni-Directionally Patrolled by One Operative when Walking Time and Repair Times are Constants
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Abstract

The solution is given to the problem of determining the efficiency of N machines looked after by an operative who walks round them in one direction, always taking the same time to walk to a given machine from the previous one and to inspect it and service it (we call this overall time the "walking time"), and then, if the machine has stopped, taking a fixed time to repair it.

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