نتایج جستجو برای: lifetime testing

تعداد نتایج: 389779  

Journal: :Int. J. Computational Intelligence Systems 2013
Mohsen Arefi Seyed Mahmoud Taheri

A new approach for testing fuzzy hypotheses based on fuzzy data is introduced. According to the proposed approach, a method is first developed based on the defined fuzzy point estimation, which are then used to make a procedure for testing fuzzy hypotheses. This approach has been used to test simple, one-sided and two-sided fuzzy hypotheses. Two new criteria, called degree of acceptance (DA) an...

2013
Veena S. Chakravarthi Swaroop Ghosh

Test power has emerged as an important design concern in nano-scaled technologies. The BIST circuitry for periodic self-test consumes significant power in hand-held electronic devices to increase battery lifetime. Reduced test power of a module allows parallel testing of multiple embedded cores in an IC. Peak and average power reduction during test contribute to enhanced reliability and improve...

2017
Tara Maga Lara Balay Barbara Jung

Colorectal cancer affects 1 in 20 men and women in their lifetime. About 30% of these cases have been shown to be familial while only about 5% are associated with a highly penetrant hereditary colon cancer syndrome. In many familial cases, however, no mutation in the commonly implicated CRC genes is found. With the development of next-generation sequencing, testing laboratories are now able to ...

Journal: :Toxicologic pathology 2001
G S Omenn

The ILSI/HESI Workshop on Alternatives to Carcinogenicity Testing aims to develop and apply new methods for assessment of potential carcinogenic risk to humans from various chemicals. The Workshop represents a major cooperative scientific effort. The long-term goals should be to greatly enhance the efficiency and reliability of such testing and to supplant, not just supplement, lifetime rodent ...

Journal: :The American journal of medicine 2004
Andrew D Auerbach Gillian D Sanders Julie Hambleton

PURPOSE Among patients with deep vein thrombosis, hypercoagulable conditions impart a substantial risk of recurrent thrombosis. We sought to determine the cost-effectiveness of testing for these disorders, as well as which tests should be selected and how results should be used. METHODS Using a Markov state-transition model, strategies of testing or not testing for a hypercoagulable state fol...

2007
Pauline Coolen-Schrijner Tahani Maturi Frank Coolen

Nonparametric predictive inference (NPI) is a statistical approach based on few assumptions about probability distributions, with inferences based on data. NPI assumes exchangeability of random quantities, both related to observed data and future observations, and uncertainty is quantified via lower and upper probabilities. In this paper, lifetimes of units from groups X and Y are compared, bas...

Journal: :iranian journal of radiation research 0
s. dizman abant i̇zzet baysal university, faculty of sciences and arts, department of physics, 14280, bolu, turkey f.k. görür recep tayyip erdoğan university, faculty of sciences and arts, department of physics, 53100, rize, turkey r. keser abant i̇zzet baysal university, faculty of sciences and arts, department of physics, 14280, bolu, turkey

background: turkey, especially the northern part of it, was one of the countries which were contaminated by the chernobyl accident.  rize is a city located in the northeastern district of turkey which was heavily influenced by the chernobyl nuclear accident. materials and methods: in this study, the activity concentrations of natural (226ra, 232th, 40k) and artificial (137cs) were measurements ...

Journal: :international journal of architecture and urban development 0
rama ghalambor dezfooly ph.d., pardis branch, islamic azad university, pardis, iran

following the changes in the paradigm of urban studies in recent years, sustainability has become an increasingly important issue in the neighborhood’s planning and designing. however, this concept has originally been developed for american and european neighborhoods’ planning, it could also be customized for other neighborhoods’. additionally, in the neighborhood scale, the quality parameter f...

Journal: :The journal of pain : official journal of the American Pain Society 2016
N Hellman K Barnoski C Sturycz B Kuln E Lannon S Palit Y Güereca M Payne K Thompson J Shadlow J Rhudy

 Overview, Informed Consent & Eligibility Determination (Health Status Screening) -Two testing sessions were completed on separate days -Testing session and test order were counterbalanced -Informed consent obtained at beginning of first testing session  Life Events Checklist Administered -Self-report measure that indicated the number of traumatic events an individual has experienced in their...

2007
Ryszard Motyka R. MOTYKA

Abstract: This paper considers two competing methods intended to shorten lifetime tests. The first method, due to L.G. Johnson, is known in reliability engineering as “sudden death testing”. Its competitor is a widely known time-terminated, right-censored test. Times of tests carried out according to these methods are set equal. Then, methods are compared in terms of variances and biases of lif...

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