The failure rate in reliability: approximations and bounds
نویسندگان
چکیده
منابع مشابه
The Failure Rate in Reliability: Approximations and Bounds
We consider models typical to the area of reliability, and a failure rate function for processes describing the dynamics of these models. Various approximations of the failure rate function are proposed and their accuracies are investigated. The basic case studied in the paper is a regenerative model. Some interesting particular cases (Markov, semi-Markov, etc.) are considered. All proposed est...
متن کامل: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes
هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
Bounds for the Failure Rate in Heterogeneous Populations
We derive bounds for the mixture failure rate in the multiplicative (proportional hazards) model. We explicitly show that the corresponding proportionality in subpopulations does not result in proportionality for a whole population. We analyze the shape of the mixture failure rate in an environment with a stress change point and also discuss the effect of shocks which change a mixing distribution.
متن کاملReliability Analysis of Three Elements Series and Parallel Systems under Time-varying Fuzzy Failure Rate
Reliability is the most important performance issue in the engineering design process but in the real world problems, there are limitations for using the conventional reliability. Fuzzy logic has proved to be effective in expressing uncertainties in different fields, including reliability engineering. In this paper, For both the series and parallel systems composed of three identical or differe...
متن کاملSharp Bounds of the Multivariate Discrete Moment Problem: approximations of CDF values and reliability levels
The method of polynomial bases in Mádi-Nagy (2012) can solve almost any type of multivariate discrete moment problem (MDMP) within an acceptable time. The effective implementation of this algorithm is published as a Google hosted project Numerical MDMP (2013), which enables the use of the method in several practical applications. This paper presents three types of applications: approximations o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Mathematics and Stochastic Analysis
سال: 1996
ISSN: 1048-9533,1687-2177
DOI: 10.1155/s1048953396000433