time to first failure distribution
Application of the Weibull Accelerated Failure Time Model in the Determination of Disease-Free Survival Rate of Patients with Breast Cancer
... accelerated failure time assumption (AFT) holds then the proportional hazards (PH) assumption also ...over time; the main assumption of an AFT model is that survival time accelerates by a ...
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A calculation method for estimation of the mean time to first failure of the technical systems on basis of the topological conversion of the Markov reliability model
... Let us assume that an asymmetric computing system with three functional identical computer nodes and different reliability parameters for each node are given. The computing nodes provide the same calculations, and there ...
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Bayesian Inference and Prediction of Burr Type XII Distribution for Progressive First Failure Censored Sampling
... Weibull distribution for Type-II censored ...life time from a future sample based on observed usual records from an exponential ...cumulative distribution func- tions which yield a variety of density ...
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Assessing the Lifetime Performance Index Using Exponentiated Frechet Distribution with the Progressive First-Failure-Censoring Scheme
... lifetime performance of electronic components, where L is the lower specification limit, since the lifetime of electronic components exhibits the larger the better quality characteristic of time orientation. In ...
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Bayesian Estimation Using MCMC Approach Based on Progressive First-Failure Censoring from Generalized Pareto Distribution
... this distribution has decreasing failure rate ...This distribution is also known as Pareto distribution of type II or Lomax ...This distribution has been shown to be useful for modeling ...
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Estimation of the Unknown Parameters for the Compound Rayleigh Distribution Based on Progressive First Failure Censored Sampling
... There are many scenarios in life-testing and reliability experiments whose units are lost or removed from ex- perimentation before failure. The loss may occur unin- tentionally, or it may have been designed so in ...
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Prediction of time to reflux using accelerated failure time model of Weibull distribution in children with antenatal hydronephrosis
... proportional hazard model we found that the parameter estimates (hazard ratio) were almost similar between the two methods (analysis available on request). The method of AFT model was used to be consistent with the work ...
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Bayes estimation for the parameters of the Weibull-Geometric distribution based on progressive first failure censored data
... with distribution function 1 − (1 − F(x)) k ...progressively first- failure censored order statistics ...progressive first-failure censored scheme has advantages in terms of reducing ...
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Prediction of the cumulative number of failures for a repairable system based on past performance
... the time to first failure (T T F F ) distribution and the quality of the repair q are known and can be estimated from the available data ([2] and ...repair time is assumed to be ...
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Estimation of auc for constant shape bi-weibull failure time distribution
... the time that test scores for individuals with the condition of interest will exceed (or be less than) those of individuals without the ...Was first to use the Gaussian model for estimating the ROC ...
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Cost benefit analysis of a two non-identical unit standby system with two repairmen and repair machine failure
... fails first time and after repair, it goes into quasi-normal ...its failure and becomes as good as new after this maintenance ...repair time distribution of unit-1 (failed first ...
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Low cycle fatigue tests and damage accumulation models on the rolling shear strength of cross-laminated timber
... strength distribution was first established by the short-term ramp loading; the time to failure data from the trapezoidal fatigue loading tests was obtained to understand the development of ...
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Bayesian Joint Modelling of Survival Time and Longitudinal CD4 Cell Counts Using Accelerated Failure Time and Generalized Error Distributions
... error distribution was first introduced by Subbotin [15] as class of symmetric distributions with variation in ...and time series models with heavy tails assuming the underlying distribution ...
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Erdosteine reduces inflammation and time to first exacerbation postdischarge in hospitalized patients with AECOPD
... was used to compare the difference in percentages between groups. We constructed Kaplan–Meier curves of the prob- ability of exacerbation-free status. Time-to-event analyses were performed with the use of the ...
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Some limit results in queuing theory
... g time, have b e e n of the form clogn, w h e r e c is a p o s i t i v e c o ...g time o b s e r v e d up till the a r rival of the nth c u s t o m e r can be e x p e c t e d to be of the o r der of logn ...
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A comparison of model simulations of Asian mega-droughts during the past millennium with proxy reconstructions
... Abstract. Two PMIP3/CMIP5 climate model ensemble sim- ulations of the past millennium have been analysed to iden- tify the occurrence of Asian mega-droughts. The Palmer drought severity index (PDSI) is used as the key ...
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RELIABILITY IMPROVEMENT OF RADIAL DISTRIBUTION SYSTEM WITH DISTRIBUTED GENERATION
... with time and the bee’s aim is to discover the places of food sources with high nectar amount and finally the one with the highest ...scouts. First half of the colony consists of the employed artificial ...
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A general queuing model witharbitrary service time distribution
... In steady state, each customer has the same continuous waiting time distribution with probability density function φ(t). Let φ(t)dt is the probability that a customer begins to be served in the interval (t, ...
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Availability and Reliability Analysis for Dependent System with Load-Sharing and Degradation Facility
... Availability is the probability that the system is capable of conducting its required function when it is called upon given that it is not failed or undergoing a repair action. Reliability is the probability of a device ...
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Determinants of Age at First Sexual Intercourse Among Women in Rural Ethiopia
... at first sex has important implications for gender relations and the organization of family life for in ...at first sexual intercourse among women in Rural ...at first sexual ...accelerated ...
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