SCHEDULED REVIEW METHODS FOR CONTROLLABLE STATE VARIABLES

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SALEHI FATHABADI H.

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Journal: Journal of Sciences, Islamic Republic of Iran Year:2004 | Volume:15 | Issue:4 Page(s): 351-359

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Information Journal Paper

Title

SCHEDULED REVIEW METHODS FOR CONTROLLABLE STATE VARIABLES

Author(s)

SALEHI FATHABADI H. | Issue Writer Certificate

Keywords

STATE VARIABLES; INVENTORY SYSTEMS; RANDOM VARIATES; REVIEW METHODSQ4

Abstract

In many real systems in which a state variable should be controlled for being in appropriate range, the length of control (review) intervals is taken to be constant. In such systems, when the cost of reviews and out-of-range values of the state variable are considerable, this method may not be optimal. In this paper we let the length of review intervals to be variable during each operating cycle and construct the related mathematical cost model. Then two scheduled review methods, called U2 and U3, are introduced and the relative annual system costs are analyzed. The model is developed for the case of negative exponential variate as the time between successive consumption points. It is shown that the new methods results a significant reduction in the expected annual cost of the system.

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APA: Copy

SALEHI FATHABADI, H.. (2004). SCHEDULED REVIEW METHODS FOR CONTROLLABLE STATE VARIABLES. JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN, 15(4), 351-359. SID. https://sid.ir/paper/370753/en

Vancouver: Copy

SALEHI FATHABADI H.. SCHEDULED REVIEW METHODS FOR CONTROLLABLE STATE VARIABLES. JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN[Internet]. 2004;15(4):351-359. Available from: https://sid.ir/paper/370753/en

IEEE: Copy

H. SALEHI FATHABADI, “SCHEDULED REVIEW METHODS FOR CONTROLLABLE STATE VARIABLES,” JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN, vol. 15, no. 4, pp. 351–359, 2004, [Online]. Available: https://sid.ir/paper/370753/en

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