نتایج جستجو برای: reliability parameters

تعداد نتایج: 711835  

2011
Ashwini Kumar Srivastava Vijay Kumar

In this paper, Exponential Power (EP) model is proposed to analyze the software reliability data and the present work is an attempt to represent that the model is as software reliability model. The approximate MLE using Artificial Neural Network (ANN) method and the Markov chain Monte Carlo (MCMC) methods are used to estimate the parameters of the EP model. A procedure is developed to estimate ...

2015
Ilhan USTA Hanefi Gezer

108 Reliability estimation in Pareto-I distribution based on progressively type II censored sample with binomial removals Ilhan USTA 1, *, Hanefi Gezer 2 1Doctor of Philosophy, Associate Professor, Department of Statistics, Faculty of Science, Anadolu University, Eskisehir, Turkey 2Master of Statistics, Faculty of Science, Anadolu University, Eskisehir, Turkey Abstract: In this study, we deal w...

2016
Manish Saraswat

The applications of computer systems have been increased immensely during the last few decades and the system reliability is major concern which is depends upon reliability of software and hardware components. Software testing is quality assurance process which confirms that the product is error free and reliable. The reliability of software is major quality attribute which ensure failu...

2013
Igor A. Chaves Robert E. Melchers

Steel structures continuously exposed to offshore marine environments are prone to corrosion. This can be of major economic and perhaps of environmental significance. The risk of these scenarios occurring can be assessed using good quality data, good quality corrosion and pitting models and structural reliability assessment. Recently, improved models for the prediction of longer term corrosion ...

2006
Olivier Basile Pierre Dehombreux

The estimation of reliability of mechanical systems under variable constraints needs the knowledge of the failure modes to which the system is subjected. These mechanical systems are generally complex, that is why this article first presents two MATLAB libraries Reliabilitix and Simulatrix developed to estimate reliability of such systems. Two methods, used to determine reliability parameters, ...

2007
X. Q. Ai J. Li

In this paper, a new approach for the dynamic reliability assessment of finite element modelled underground pipeline structures under earthquake excitations with uncertain parameters is proposed. The approach is established based on the thoughts of the newly developed probability density evolution method, which is capable of capturing the instantaneous probability density function (PDF) and its...

2017
Harminder Pal Singh Dhami Vaibhav Bansal

Till now there have been many Software Reliability models developed for assessing the reliability of software product. Most of these are based upon past failure data gathered during the testing phase. These models have been utilized to evaluate the quality of the software and for future predication of reliability. They have been used in many critical management decision making problems that occ...

2014
William McClatchie

Accurate radiographic interpretation is essential for properly diagnosing the etiology of pre-arthritic hip pain such as femoroacetabular impingement (FAI) and acetabular dysplasia (AD); however, radiographic interpretation can be significantly influenced by the observer's experience level. This study assesses the accuracy and inter- and intraobserver reliability in the radiographic evaluation ...

2017
Hsien-Shu Lin Yunn-Jy Chen Hsuan-Lun Lu Tung-Wu Lu Chien-Chih Chen

BACKGROUND Cephalometric radiography has been used for orthodontic and surgical treatment planning and assessment, and for quantifying mandibular growth. However, it remains unclear how head positioning errors and the level of examiner experience affect the reliability of such morphometric measurements. The current study aimed to bridge the gap by determining the intra-, inter-rater, and inter-...

2007
H. Kolanoski

Using the ARGUS detector at the e+e storage ring DORIS II, we have measured the Michel parameters , , and for ! l  decays in -pair events produced at center of mass energies in the region of the resonances. Using ! as spin analyzing tags, we nd e = 0:68 0:04 0:08, e = 1:12 0:20 0:09, e = 0:57 0:14 0:07, = 0:69 0:06 0:08, = 1:25 0:27 0:14 and = 0:72 0:18 0:10. In addition, we report the combine...

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