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Parametric Accelerated Life Testing

Statistical inference for the Arrhenius-Weibull accelerated life testing model with imprecision based on the likelihood ratio test.

Statistical inference for the Arrhenius-Weibull accelerated life testing model with imprecision based on the likelihood ratio test.

... paper can straightforwardly be adapted. It is also possible to apply the basic idea of our new method without assuming a parametric model at each stress level, but instead using the Arrhenius link function ...

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Imprecise Statistical Methods for Accelerated Life Testing

Imprecise Statistical Methods for Accelerated Life Testing

... The development of ALT statistical modelling is typically complex and brings chal- lenges for modelling and statistical inference. The literature tends towards creating ever more complex models [28, 29, 32, 45]. While ...

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ANALYSIS OF ACCELERATED LIFE TESTING USING LOG-LOGISTIC GEOMETRIC PROCESS MODEL IN CASE OF CENSORED DATA

ANALYSIS OF ACCELERATED LIFE TESTING USING LOG-LOGISTIC GEOMETRIC PROCESS MODEL IN CASE OF CENSORED DATA

... one parametric model for survival ...an accelerated failure time model by allowing  to differ between groups, or more generally by introducing covariates that affect  but not  by modeling log  as a ...

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Bootstrap-based confidence intervals in partially accelerated life testing

Bootstrap-based confidence intervals in partially accelerated life testing

... the parametric method yields bounds that are higher with closer to normal coverage (Tables ...and accelerated samples are the same and the acceleration factor is set at ...the accelerated condition ...

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Experimental Comparison of Parametric Characterization Methods for Thermoelectric Generators

Experimental Comparison of Parametric Characterization Methods for Thermoelectric Generators

... All thermocouples used for testing were calibrated before use. Watlow K-type ungrounded thermocouples were used for the test equipment. To calibrate the thermocouples, a thermocouple that had been calibrated ...

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Censoring Unbiased Regression Trees and Ensembles

Censoring Unbiased Regression Trees and Ensembles

... The censoring distributions in both Settings 1 and 2 are independent of covariates; each is estimated using a Kaplan-Meier estimator. The conditional expectations required for computing the doubly robust and ...

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Environmental determinants of islet autoimmunity (ENDIA): a pregnancy to early life cohort study in children at-risk of type 1 diabetes

Environmental determinants of islet autoimmunity (ENDIA): a pregnancy to early life cohort study in children at-risk of type 1 diabetes

... Weight gain is associated with markers of innate immune system activation and chronic low-grade inflammation, which have been linked to insulin resistance. Previous stud- ies have shown that pro-inflammatory CD11c + ...

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Testing parametric models in linear-directional regression

Testing parametric models in linear-directional regression

... When dealing with directional and linear variables at the same time, the joint behavior could be modeled by considering a flexible density estimator (Garc´ıa-Portugu´ es et al., 2013). Nev- ertheless, a regression ...

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The safety of ready to eat meals under different consumer handling conditions : a thesis presented in partial fulfilment of the requirements for the degree of Master in Food Technology at Massey University, Manawatū, New Zealand

The safety of ready to eat meals under different consumer handling conditions : a thesis presented in partial fulfilment of the requirements for the degree of Master in Food Technology at Massey University, Manawatū, New Zealand

... acceptability or the safety of the food. Shelf life can be determined by the chemical changes or microbiological spoilage in foods. Measuring the population of different pathogenic microorganisms is important to ...

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Group Term Life/AD&D Insurance

Group Term Life/AD&D Insurance

... If you become Totally Disabled while You are insured and prior to Your 70 th birthday then subject to the terms of the Policy and this provision, no premium payment will be required for Your Basic Life Insurance ...

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Accelerated Testing of Devices on Durability and Fatigue Failure

Accelerated Testing of Devices on Durability and Fatigue Failure

... are functions of distribution of time of failure-free operation of a device in modes X and Y correspondingly. It is quite interesting to determine the criterions of linearity of acceleration function, because the problem ...

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Vacuum Insulation Panels (VIP) – An Assessment of the Impact of Accelerated Ageing on Service Life

Vacuum Insulation Panels (VIP) – An Assessment of the Impact of Accelerated Ageing on Service Life

... service life (indoor or domestic appliance refrigerator ...service life only when mechanical deformation of VIP panels occurs, and not if they are used properly; without any deleterious chemical, physical ...

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Radiation Embrittlement of VVER-1000 Reactor Pressure Vessel Materials

Radiation Embrittlement of VVER-1000 Reactor Pressure Vessel Materials

... For the materials of VVER-1000 reactor pressure vessel welds the flux effect is caused by different change in material structure at nanolevel after irradiation with various rate to the same level of damaging dose of ...

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Bayesian design for life tests and accelerated life tests

Bayesian design for life tests and accelerated life tests

... Zaher, Ismail, and Bahaa (1996) present Bayesian life test planning methods for the Weibull distribution with a known shape parameter under Type I cen­ soring, using a c[r] ...

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Software reliability assessment using accelerated testing methods

Software reliability assessment using accelerated testing methods

... usage-based testing in the software engineering literature in recent years (see, for example, Musa (1993) and Walton et ...(1995)). Testing under the actual operational pro®le can, however, be expensive, ...

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Modeling Reliability Growth in Accelerated Stress Testing

Modeling Reliability Growth in Accelerated Stress Testing

... The Weibull distribution has long been a popular choice for modeling lifetime data of various mechanical and biological phenomena when the associated hazard rate function is constant or monotone increasing or decreasing. ...

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STABILITY STUDIES OF THE OPTIMIZED ORAL CONTROLLED RELEASE VERAPAMIL HYDROCHLORIDE TABLET FORMULATIONS

STABILITY STUDIES OF THE OPTIMIZED ORAL CONTROLLED RELEASE VERAPAMIL HYDROCHLORIDE TABLET FORMULATIONS

... term testing also indicated a stable ...stability testing by the ICH ...shelf life of the product the most desired characteristic is then calculated based on the results after the testing at ...

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Accelerated Genetic Algorithm Solutions Of Some Parametric Families Of Stochastic Differential Equations

Accelerated Genetic Algorithm Solutions Of Some Parametric Families Of Stochastic Differential Equations

... The above technique is useful for linear and nonlinear coefficient functions a(s, x) and b(s, x). Now, we are applying this technique for finding the numerical solution to the stochastic differential equations using an ...

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Optimised cathodic protection design for maximum bond performance in reinforced concrete

Optimised cathodic protection design for maximum bond performance in reinforced concrete

... • Intervention: accelerated by using current densities higher than would typically be used in the field. Four different levels of current densities ranging from 0 (control) to over 1000 µA/cm 2 were applied. These ...

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Environmental Compliance using CEMS

Environmental Compliance using CEMS

...  Parametric data recorded during annual compliance tests.  A parameter range is determined during the annual testing[r] ...

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