Results 271 to 280 of about 251,112 (311)

New hazard rate functions

Microelectronics Reliability, 1978
Abstract This paper presents an idea about three new hazard rate functions. Hazard rate and reliability expressions are presented.
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Hazard Functions, Renewal Rates and Peril Rates

SAE Technical Paper Series, 1970
<div class="htmlview paragraph">Reliability models appropriate to 1) non-repairable parts, 2) sockets and 3) repairable systems are presented. It is shown that a renewal process is usually appropriate as a model for a socket but generally is implausible as a repairable system model. Several models for repairable systems are proposed.
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Distributions with known initial hazard rate functions

Journal of Statistical Planning and Inference, 1999
The purpose of this paper is to study the distributional properties of a non-negative random vector \({\mathbf X}= (X_1,X_2)\), based only on initial hazard rate functions. Section 2 investigates stochastic orderings for random vectors that have the same initial hazard rate function.
SCARSINI, MARCO, M. Shaked
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An estimator for the generalized hazard rate function

Communications in Statistics - Theory and Methods, 1979
An estimator of the generalized hazard rate function is studied. It is shown how the estimator can be obtained in parametric and nonparametric methods. Its limiting distribution, as the number of observations increases, is shown to be normal. Isotonization of the estimator under the assumption that the generalized hazard rate function is monotone is ...
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Bayesian estimation of reliability function and hazard rate

Microelectronics Reliability, 1991
Abstract The Bayes estimates of reliability function and hazard rate function of the finite range failure model have been developed based on life tests that are terminated at a preassigned time point or after a certain number of failures have occurred, taking the order of observations into consideration.
S.A. Siddiqui, Sanjeev Kumar
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Modeling the bathtub shape hazard rate function in terms of reliability

Reliability Engineering & System Safety, 2002
Abstract In this paper, a general form of bathtub shape hazard rate function is proposed in terms of reliability. The degradation of system reliability comes from different failure mechanisms, in particular those related to (1) random failures, (2) cumulative damage, (3) man–machine interference, and (4) adaptation.
K. S. Wang, F. S. Hsu, P. P. Liu
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An engineering approach to hazard rate distribution functions.

Journal of Aircraft, 1969
A method is presented for deriving an empirical function of component hazard rates from unit time and failure histories. The probability distribution of the mean hazard rate over a selected interval is derived, together with an excellent approximation which may be used for obtaining confidence statements or conducting simulation studies. The method has
JACK W. NICHOLAS, DIANA J. GASKELL
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Generating Continuous Random Variates From a Hazard Rate Function

IEEE Transactions on Reliability, 1985
Three methods are discussed to generate continuous non-negative random variates from a given hazard rate function: a) inverse Cdf, b) acceptance/rejection, and c) thinning.
Dattero, Ronald, Stein, William E.
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The influence of random effects on the unconditional hazard rate and survival functions

Biometrika, 1993
Summary: The consequences of introducing random effects have been a major issue in models for survival analysis. A general result is derived to establish the underestimation of the unconditional hazard rate when a random effect is present. Also, the survival time is shown to be underestimated. No distributional assumption regarding the random effect is
Omori, Yasuhiro, Johnson, Richard A.
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Nonparametric estimation of the hazard rate function and its derivative

Russian Physics Journal, 1999
A class of nonparametric kernel estimates is suggested for an unknown hazard rate function and its derivative. Distribution and mean square convergences of the proposed estimates to the unknown hazard function and its derivative are proved. These estimates can be used for solving the problems of operational reliability of complex physical, technical ...
V. A. Vaal', G. M. Koshkin
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