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Optimal replacement policy for a multistate degenerative system / Mohamed Refaat Nasef Mohamed ; Supervised Ahmed Fouad M. Attia , Hanan M. Aly

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Mohamed Refaat Nasef Mohamed , 2013Description: 114 Leaves ; 30cmOther title:
  • سياسة الإحلال الأمثل لنظام الإنحلال متعدد المراحل [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (M.Sc.) - Cairo University - Institute of Statistical Studies and Research - Department of Mathematical Statistics Summary: In most of our real life situations owing to the ageing effect and accumulated wearing, the systems are degenerative in the sense that the successive operating times between failures become shorter and shorter, while the consecutive repair times after failures are getting longer and longer. In other words, the successive operating times are stochastically decreasing and finally dying out, while the consecutive repair times are stochastically increasing and finally tend to increasing and finally tend to infinity. To model such a degenerative system, Lam (1988(b)) first introduced a geometric process repair model in which he studied two kinds of replacement policy, one was based on the working age T of the system and the other on the failure or repair number N of the system
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.18.03.M.Sc.2013.Mo.O (Browse shelf(Opens below)) Not for loan 01010110063442000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.18.03.M.Sc.2013.Mo.O (Browse shelf(Opens below)) 63442.CD Not for loan 01020110063442000

Thesis (M.Sc.) - Cairo University - Institute of Statistical Studies and Research - Department of Mathematical Statistics

In most of our real life situations owing to the ageing effect and accumulated wearing, the systems are degenerative in the sense that the successive operating times between failures become shorter and shorter, while the consecutive repair times after failures are getting longer and longer. In other words, the successive operating times are stochastically decreasing and finally dying out, while the consecutive repair times are stochastically increasing and finally tend to increasing and finally tend to infinity. To model such a degenerative system, Lam (1988(b)) first introduced a geometric process repair model in which he studied two kinds of replacement policy, one was based on the working age T of the system and the other on the failure or repair number N of the system

Issued also as CD

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