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Relevant bibliographies by topics / Predictive reliability / Dissertations / Theses

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Dissertations / Theses on the topic 'Predictive reliability'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Aboalkhair, Ahmad M. "Nonparametric predictive inference for system reliability." Thesis, Durham University, 2012. http://etheses.dur.ac.uk/3918/.

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This thesis provides a new method for statistical inference on system reliability on the basis of limited information resulting from component testing. This method is called Nonparametric Predictive Inference (NPI). We present NPI for system reliability, in particular NPI for k-out-of-m systems, and for systems that consist of multiple ki-out-of-mi subsystems in series configuration. The algorithm for optimal redundancy allocation, with additional components added to subsystems one at a time is presented. We also illustrate redundancy allocation for the same system in case the costs of additio

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2

Abdel-Ghaly, A. A. "Analysis of predictive quality of software reliability models." Thesis, City University London, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370836.

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3

Ossai, Chinedu Ishiodu. "Predictive modelling and reliability analysis of aged, corroded pipelines." Thesis, Curtin University, 2016. http://hdl.handle.net/20.500.11937/2561.

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Pipeline corrosion is a major challenge facing many oil and gas industries today because of the enormous downtime associated with corrosion related failures. This research utilized field data for modelling the reliability of aged corroded pipelines via probabilistic-based modelling techniques that included Markov decision process. The models developed from this work have been used for estimating the remaining useful life of corroded pipelines and can potentially enhance the integrity of future operational pipelines.

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4

Bryant, P. C. II. "Predictive validity and test-retest reliability of a measure of resilience." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/28883.

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Dikis, Konstantinos. "Establishment of a novel predictive reliability assessment strategy for ship machinery." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27957.

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There is no doubt that recent years, maritime industry is moving forward to novel and sophisticated inspection and maintenance practices. Nowadays maintenance is encountered as an operational method, which can be employed both as a profit generating process and a cost reduction budget centre through an enhanced Operation and Maintenance (O&M) strategy. In the first place, a flexible framework to be applicable on complex system level of machinery can be introduced towards ship maintenance scheduling of systems, subsystems and components. This holistic inspection and maintenance notion should be

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6

Sedghi, Mahdieh. "Data-driven predictive maintenance planning and scheduling." Licentiate thesis, Luleå tekniska universitet, Industriell Ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80828.

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The railway track network is one of the major modes of transportation and among a country’s most valuable infrastructure assets. Maintenance and renewal of railway infrastructure have a vital role in safety performance, the quality of the ride, train punctuality, and the life cycle cost of assets. Due to the large proportion of maintenance costs, increasing the efficiency of maintenance through optimised planning can result in high amounts of cost-saving. Moreover, from a safety perspective, late maintenance intervention can result in defective track and rollingstock components, which in sever

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Alberts, Philippus Petrus Hermanus. "The predictive validity of a selection battery for university bridging students in a public sector organisation / Philippus Petrus Hermanus Alberts." Thesis, North-West University, 2007. http://hdl.handle.net/10394/203.

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South Africa has faced tremendous changes over the past decade, which has had a huge impact on the working environment. Organisations are compelled to address the societal disparities between various cultural groups. However, previously disadvantaged groups have had to face inequalities of the education system in the past, such as a lack of qualified teachers (especially in the natural sciences), and poor educational books and facilities. This has often resulted in poor grade 12 results. Social responsibility and social investment programmes are an attempt to rectify these inequalities. The ob

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Borglund, Erik. "A predictive model for attaining quality in recordkeeping." Licentiate thesis, Mid Sweden University, Department of Information Technology and Media, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-42.

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<p>Records are a subset of information and recordkeeping requirements demand that a record is managed with maintained authenticity and reliability, i.e. with high quality. Records are evidence of transactions and are used and managed in daily work processes. Records may be preserved for anything from milliseconds to eternity. With computer based information systems the electronic record was born: a record that is born digital. With electronic records problems regarding maintenance of authenticity and reliability have been identified. Electronic records are no longer physical entities as tradit

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9

Moen, Kurt Andrew. "Predictive modeling of device and circuit reliability in highly scaled CMOS and SiGe BiCMOS technology." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44700.

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The advent of high-frequency silicon-based technologies has enabled the design of mixed-signal circuits that incorporate analog, RF, and digital circuit components to build cost-effective system-on-a-chip solutions. Emerging applications provide great incentive for continued scaling of transistor performance, requiring careful attention to mismatch, noise, and reliability concerns. If these mixed-signal technologies are to be employed within space-based electronic systems, they must also demonstrate reliability in radiation-rich environments. SiGe BiCMOS technology in particular is positioned

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10

Dababneh, Amer Basheer. "A virtual predictive environment for monitoring reliability, life time, and maintainability of printed circuit boards." Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/2470.

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This thesis highlights the development of an immerse and high fidelity virtual environment for lifetime and reliability analysis of circuit cards for nuclear power electronics. The developed virtual environment allows prediction of total life time, overall reliability and maintainability for circuit cards (system level) and their components (component level) through a simulation methodology. Component repair or replace approaches are used within this simulation which gives the user the ability to choose between them based

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McConnell, Meghan. "Advancements in the Evaluation and Implementation of Heart Rate Variability Analytics." Thesis, Griffith University, 2021. http://hdl.handle.net/10072/404855.

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Clinical applications for heart rate variability (HRV) have become increasingly popular, gaining momentum and value as societies increased understanding of physiology reveals their true potential to reflect health. An additional reason for the rising popularity of HRV analysis, along with many other algorithmic based medical processes, is the relatively recent exponential increase of computing power and capabilities. Despite this many medical standards lag behind this booming increase in scientific knowledge, as the risks and precautions involved with healthcare necessarily take priority. Resu

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12

Muncy, Jennifer V. "Predictive Failure Model for Flip Chip on Board Component Level Assemblies." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5131.

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Environmental stress tests, or accelerated life tests, apply stresses to electronic packages that exceed the stress levels experienced in the field. In theory, these elevated stress levels are used to generate the same failure mechanisms that are seen in the field, only at an accelerated rate. The methods of assessing reliability of electronic packages can be classified into two categories: a statistical failure based approach and a physics of failure based approach. This research uses a statistical based methodology to identify the critical factors in reliability performance of a flip chip

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13

Harris, Sheryl. "Determining the Reliability and Use of the Center for Community College Student Engagement Survey of Entering Student Engagement As a Tool to Predict Student Success in a Large Urban Community College District." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc699936/.

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As community colleges have gained more recognition as a viable pathway for students to enter higher education, they have faced greater accountability that has prompted both practitioners and policy makers to attempt to find solutions and tools, such as National Survey of Student Engagement, Community College Survey of Student Engagement, and Survey of Entering Student Engagement (SENSE), to aid in improving student success outcomes. This study addressed the validity and reliability of the SENSE instrument using a three-pronged approach via student data collected over 3 years of SENSE administ

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14

Novák, Josef. "Metody analýzy spolehlivostních dat z provozu a zkoušek letadel." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-233972.

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The doctoral thesis deals with reliability (dependability) analyses of operation and testing data of the Airplanes. Requirements of airworthiness regulations on aircraft hydraulic systems (with a focus on US FAR-23 and European CS-23 regulations) are taken into account. Mentioned regulations include requirements for the structural design, design of systems, etc. They cover wide range of airplanes from small sport airplanes to 19-seats transport aircraft. Also options for predictive reliability analyses (resources) and reliability tests are discussed in the doctoral thesis. Practical applicatio

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Karimi, Pour Fatemeh. "Health-aware predictive control schemes based on industrial processes." Doctoral thesis, TDX (Tesis Doctorals en Xarxa), 2020. http://hdl.handle.net/10803/673045.

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The research is motivated by real applications, such as pasteurization plant, water networks and autonomous system, which each of them require a specific control system to provide proper management able to take into account their particular features and operating limits in presence of uncertainties related to their operation and failures from component breakdowns. According to that most of the real systems have nonlinear behaviors, it can be approximated them by polytopic linear uncertain models such as Linear Parameter Varying (LPV) and Takagi-Sugeno (TS) models. Therefore, a new economic Mod

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Lann-Wolcott, Hannah. "An evaluation of the predictive validity and reliability of two measures of person-centered caregiving with nursing home residents with dementia." Diss., Wichita State University, 2009. http://hdl.handle.net/10057/2367.

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The goal of this dissertation was to test the predictive validity of two measurements of person-centered care (PCC), the Person-Centered Behavioral Inventory (PCBI), and the Global behavior scale (GBS). These measures were developed as part of a previous study to assess certified nurse aide students’ person-centered skills following an educational training program to increase person-centered behaviors (Grosch, Medvene, & Wolcott, 2008). This study tested whether the person-centered behavioral inventory and the global behavior scale could significantly predict scores found using the Resistivene

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Berg, Martin, and Albin Eriksson. "Toward predictive maintenance in surface treatment processes : A DMAIC case study at Seco Tools." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik, konst och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-84923.

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Surface treatments are often used in the manufacturing industry to change the surface of a product, including its related properties and functions. The occurrence of degradation and corrosion in surface treatment processes can lead to critical breakdowns over time. Critical breakdowns may impair the properties of the products and shorten their service life, which causes increased lead times or additional costs in the form of rework or scrapping. Prevention of critical breakdowns due to machine component failure requires a carefully selected maintenance policy. Predictive maintenance is used t

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Gökçe, Hasan Burak. "Structural identification through monitoring, modeling and predictive analysis under uncertainty." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5222.

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Bridges are critical components of highway networks, which provide mobility and economical vitality to a nation. Ensuring the safety and regular operation as well as accurate structural assessment of bridges is essential. Structural Identification (St-Id) can be utilized for better assessment of structures by integrating experimental and analytical technologies in support of decision-making. St-Id is defined as creating parametric or nonparametric models to characterize structural behavior based on structural health monitoring (SHM) data. In a recent study by the ASCE St-Id Committee, St-Id fr

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Ghfiri, Chaimae. "Development and validation of a predictive model to ensure the long-term electromagnetic compatibility of embedded electronic systems." Thesis, Toulouse, INSA, 2017. http://www.theses.fr/2017ISAT0033/document.

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Avec l’avancement technologique des circuits intégrés à travers la miniaturisation des tailles des transistors et leur multiplication au sein d’une même puce, l’intégration des circuits dans des systèmes embarqués complexes, principalement dans l’industrie aéronautique, spatiale et automobile, rencontre de plus en plus d’exigences en termes de respect des niveaux d’émission et d’immunité. De plus, étant donné que l’évolution des niveaux de Compatibilité Electromagnétique (CEM) des équipements électroniques doit respecter ces exigences à long terme, les marges définis par les industriels sont s

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Losik, Len. "Relying on Telemetry for Mission Critical Decisions: Lessons Learned from NASA's Reusable Launch Vehicle for Use on the Air Force's Next Generation Reusable Launch Vehicle." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581746.

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ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, California<br>The U.S. Air Force's next generation reusable booster (NGRSB) offers the opportunity for the Space Command to use intelligent equipment for decision making replacing personnel, increasing safety and mission assurance by removing decisions from program management personnel who may not have had any flight-test experience. Adding intelligence to launch vehicle and spacecraft equipm

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21

Lebranchu, Alexis. "Analyse de données de surveillance et synthèse d'indicateurs de défauts et de dégradation pour l'aide à la maintenance prédictive de parcs de turbines éoliennes." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT082/document.

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Le secteur de l’énergie éolienne est en pleine expansion depuis les 10 dernières années. Le nombre et la taille des éoliennes ont été multipliés, ce qui accroît la difficulté et la criticité de la maintenance, et impose aux industriels de passer d’une maintenance corrective et systématique à une maintenance conditionnelle et prédictive. L'objectif de ces travaux est de développer des indicateurs de dégradation, en utilisant les données numériques fournies par le SCADA, disponibles à faible coût mais enregistrées à une faible fréquence d'échantillonnage (10 min) dans un objectif de suivi de pro

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Grosso, Pérez Juan Manuel. "On model predictive control for economic and robust operation of generalised flow-based networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/288218.

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This thesis is devoted to design Model Predictive Control (MPC) strategies aiming to enhance the management of constrained generalised flow-based networks, with special attention to the economic optimisation and robust performance of such systems. Several control schemes are developed in this thesis to exploit the available economic information of the system operation and the disturbance information obtained from measurements and forecasting models. Dynamic network flows theory is used to develop control-oriented models that serve to design MPC controllers specialised for flow networks with

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Unlusoy, Ozlem. "Reliability Analysis Process And Reliabilty Improvement Of An Inertial Measurement Unit (imu)." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612387/index.pdf.

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Reliability is one of the most critical performance measures of guided missile systems. It is directly related to missile mission success. In order to have a high reliability value, reliability analysis should be carried out at all phases of the system design. Carrying out reliability analysis at all the phases of system design helps the designer to make reliability related design decisions in time and update the system design. In this study, reliability analysis process performed during the conceptual design phase of a Medium Range Anti-Tank Missile System Inertial Measurement Unit (IMU) was

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24

Chan, Pee Yuaw. "Software reliability prediction." Thesis, City, University of London, 1986. http://openaccess.city.ac.uk/18127/.

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Two methods are proposed to find the maximum likelihood parameter estimates of a number of software reliability models. On the basis of the results from analysing 7 sets of real data, these methods are found to be both efficient and reliable. The simple approach of adapting software reliability predictions by Keiller and Littlewood (1984) can produce improved predictions, but at the same time, introduces a lot of internal noise into the adapted predictions. This is due to the fact that the adaptor is a joined-up function. An alternative adaptive procedure, which involves the parametric spline

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Wright, David R. "Software reliability prediction." Thesis, City University London, 2001. http://openaccess.city.ac.uk/8387/.

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This thesis presents some extensions to existing methods of software reliability estimation and prediction. Firstly, we examine a technique called 'recalibration' by means of which many existing software reliability prediction algorithms assess past predictive performance in order to improve the accuracy of current reliability predictions. This existing technique for forecasting future failure times of software is already quite general. Indeed, whenever your predictions are produced in the form of time-to-failure distributions, successively as more actual failure times are observed, you can ap

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Steel, Donald. "Software reliability prediction." Thesis, Abertay University, 1990. https://rke.abertay.ac.uk/en/studentTheses/4613ff72-9650-4fa1-95d1-1a9b7b772ee4.

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The aim of the work described in this thesis was to improve NCR's decision making process for progressing software products through the development cycle. The first chapter briefly describes the software development process at NCR, detailing documentation review and software testing techniques. The objectives and reasons for investigating software reliability models as a tool in the decision making process are outlined. There follows a short review of software reliability models, with the Littlewood and Verrall Bayesian model considered in detail. The difficulties in using this model to obtain

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Gesch, Janelle. "Development, validation, reliability and predictive capacity of neuro-motor recovery of the Acute Brain Injury Physiotherapy Assessment (ABIPA): A tool for physiotherapists during early management of people following Acquired Brain Injury (ABI)." Thesis, Australian Catholic University, 2019. https://acuresearchbank.acu.edu.au/download/acc8b796392be39a9d5174ce72ad6ec7dc9af8607b04dd0f3d6883951f6dd1bc/13878330/Gesch_2019_Development_validation_reliability_and_predictive_capacity_Redacted.pdf.

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In the acute stages following ABI, when people are functionally dependent, a specific scale for physiotherapists to monitor incremental changes in neuro-motor function is needed. This thesis represents the development of the acute brain injury physiotherapy assessment (ABIPA), an outcome measure to fill this gap. The first step in the development of the ABIPA was to identify items known to reflect acute neuro-motor impairments for inclusion in the measure and develop scoring criteria along with guidelines for the identified items (Study 1). The final items of the ABIPA were: upper limb and low

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Kaidis, Christos. "Wind Turbine Reliability Prediction : A Scada Data Processing & Reliability Estimation Tool." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-221135.

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This research project discusses the life-cycle analysis of wind turbines through the processing of operational data from two modern European wind farms. A methodology for SCADA data processing has been developed combining previous research findings and in-house experience followed by statistical analysis of the results. The analysis was performed by dividing the wind turbine into assemblies and the failures events in severity categories. Depending on the failure severity category a different statistical methodology was applied, examining the reliability growth and the applicability of the “bat

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Askvid, Per. "A Model-Based Approach for Reliability Prediction." Thesis, Linköping University, Department of Computer and Information Science, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-54323.

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<p>When developing products, reliability is an important factor that has to be considered. For safety critical systems it is important to know the probability that an item will perform a required function without failure under stated conditions for a stated period of time. The main goal of a reliability prediction analysis is to predict the rate at which the product of a system will fail. To perform this prediction there are a number of methodologies available.</p><p>This Master Thesis proposes a model-based approach for reliability prediction calculations based on the physics of failure and s

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Che, Yunxiang, and S3145469@student rmit edu au. "Aging structure life prediction and reliability assessment." RMIT University. SAMME, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20091113.114541.

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Confront with the serious aging problem in aircraft structure field, the profession was tasked to unveil the mysterious in the mechanism of aging. In decades, many endeavours were put into different subjects such as, fatigue and crack calculation, corrosion analysis, reliability evaluation, life prediction, structure monitor and protection, structure repair, etc. In an effort of developing a reasonable model for life prediction and reliability evaluation, a wide range of topics in the field of aging structure reliability are reviewed. Many existing methods and tools are carefully studied

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Brocklehurst, Sarah. "Software reliability prediction : a multi-modelling approach." Thesis, City University London, 1995. http://openaccess.city.ac.uk/7461/.

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Many software reliability models are now available to the user who wishes to assess and make predictions about the future reliability of his/her system by using its past failure behaviour. Experience of applying such models to failure data in the past has shown that, to date, there is no one model that will give accurate predictions in all circumstances (i. e., over different data sets). Recent work has thus concentrated on the development of techniquesf or the assessmenot f the accuracyo f predictions madef or the data of interest. One of these techniques also allows the user to improve initi

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Nwankwo, Cosmas Chidozie. "Smart offshore structure for reliability prediction process." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/9335.

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A review of the developments within the field of structural reliability theory shows that some gaps still exist in the reliability prediction process and hence there is an urgent desire for improvements such that the estimated structural reliability will be capable of expressing a physical property of the given structure. The current reliability prediction process involves the continuous estimation and use of reliability index as a way of estimating the safety of any given structure. The reliability index β depends on the Probability Density Function (PDF) distribution for the wave force and t

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Stineburg, Jeffrey. "Software reliability prediction based on design metrics." Virtual Press, 1999. http://liblink.bsu.edu/uhtbin/catkey/1154775.

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This study has presented a new model for predicting software reliability based on design metrics. An introduction to the problem of software reliability is followed by a brief overview of software reliability models. A description of the models is given, including a discussion of some of the issues associated with them. The intractability of validating life-critical software is presented. Such validation is shown to require extended periods of test time that are impractical in real world situations. This problem is also inherent in fault tolerant software systems of the type currently being im

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Mohammadisohrabi, Ali. "Design and implementation of a Recurrent Neural Network for Remaining Useful Life prediction." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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A key idea underlying many Predictive Maintenance solutions is Remaining Useful Life (RUL) of machine parts, and it simply involves a prediction on the time remaining before a machine part is likely to require repair or replacement. Nowadays, with respect to fact that the systems are getting more complex, the innovative Machine Learning and Deep Learning algorithms can be deployed to study the more sophisticated correlations in complex systems. The exponential increase in both data accumulation and processing power make the Deep Learning algorithms more desirable that before. In this paper a L

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Salazar, Cortés Jean Carlo. "Contribution to reliable control of dynamic systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/669250.

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This thesis presents sorne contributions to the field of Health-Aware Control (HAC) of dynamic systems. In the first part of this thesis, a review of the concepts and methodologies related to reliability versus degradation and fault tolerant control versus health-aware control is presented. Firstly, in an attempt to unify concepts, an overview of HAC, degradation, and reliability modeling including some of the most relevant theoretical and applied contributions is given. Moreover, reliability modeling is formalized and exemplified using the structure function, Bayesian networks (BNs) and Dyn

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Vasudev, R. Sashin, and Ashok Reddy Vanga. "Accuracy of Software Reliability Prediction from Different Approaches." Thesis, Blekinge Tekniska Högskola, Avdelningen för för interaktion och systemdesign, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1298.

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Many models have been proposed for software reliability prediction, but none of these models could capture a necessary amount of software characteristic. We have proposed a mixed approach using both analytical and data driven models for finding the accuracy in reliability prediction involving case study. This report includes qualitative research strategy. Data is collected from the case study conducted on three different companies. Based on the case study an analysis will be made on the approaches used by the companies and also by using some other data related to the organizations Software Qua

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Bineid, Mansour. "Aircraft systems design methodology and dispatch reliability prediction." Thesis, Cranfield University, 2005. http://dspace.lib.cranfield.ac.uk/handle/1826/5415.

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Aircraft despatch reliability was the main subject of this research in the wider content of aircraft reliability. The factors effecting dispatch reliability, aircraft delay, causes of aircraft delays, and aircraft delay costs and magnitudes were examined. Delay cost elements and aircraft delay scenarios were also studied. It concluded that aircraft dispatch reliability is affected by technical and non-technical factors, and that the former are under the designer's control. It showed that the costs of aircraft delays are very significant and must be reduced. Cont/d.

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Jones, Jeffrey Alun. "Electronic reliability prediction : a study over 25 years." Thesis, University of Warwick, 2008. http://wrap.warwick.ac.uk/1991/.

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This thesis describes research work that the author has undertaken and published in the field of electronic reliability prediction techniques over the last 25 years. Reliability prediction is an important area since it has been part of the backbone of reliability engineering in one form or another for over fifty years. The author has over 45 publications that are within the area of reliability prediction and 13 of these have been selected for review in this thesis. In order to show how the author’s work has contributed to the field of reliability prediction this document also contains informat

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Hwang, Sungkun. "Predicting reliability in multidisciplinary engineering systems under uncertainty." Thesis, Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54955.

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The proposed study develops a framework that can accurately capture and model input and output variables for multidisciplinary systems to mitigate the computational cost when uncertainties are involved. The dimension of the random input variables is reduced depending on the degree of correlation calculated by relative entropy. Feature extraction methods; namely Principal Component Analysis (PCA), the Auto-Encoder (AE) algorithm are developed when the input variables are highly correlated. The Independent Features Test (IndFeaT) is implemented as the feature selection method if the correlation

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Mahmoodian, Mojtaba. "Reliability analysis and service life prediction of pipelines." Thesis, University of Greenwich, 2013. http://gala.gre.ac.uk/11374/.

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Pipelines are extensively used engineering structures for conveying of fluid from one place to another. Most of the time, pipelines are placed underground, surcharged by soil weight and traffic loads. Corrosion of pipe material is the most common form of pipeline deterioration and should be considered in both the strength and serviceability analysis of pipes. The study in this research focuses on two different types of buried pipes including concrete pipes in sewage systems (concrete sewers) and cast iron water pipes used in water distribution systems. This research firstly investigates how to

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Rodrigues, Genaina Nunes. "A model driven approach for software reliability prediction." Thesis, University College London (University of London), 2008. http://discovery.ucl.ac.uk/1446004/.

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Software reliability, one of the major software quality attributes, quantitatively expresses the continuity of correct service delivery. In current practice, reliability models are typically measurement-based models, and mostly employed in isolation at the later stage of the soft ware development process, after architectural decisions have been made that cannot easily be reversed early software reliability prediction models are often insufficiently formal to be ana- lyzable and not usually connected to the target system. We postulate it is possible to overcome these issues by supporting softwa

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Luo, Wen. "Reliability characterization and prediction of high k dielectric thin film." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3225.

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As technologies continue advancing, semiconductor devices with dimensions in nanometers have entered all spheres of human life. This research deals with both the statistical aspect of reliability and some electrical aspect of reliability characterization. As an example of nano devices, TaO<sub>x</sub>-based high k dielectric thin ﬁlms are studied on the failure mode identiﬁcation, accelerated life testing, lifetime projection, and failure rate estimation. Experiment and analysis on dielectric relaxation and transient current show that the relaxation current of high k dielectrics

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Villa, Medina Joe Luis. "Reliability of classification and prediction in k-nearest neighbours." Doctoral thesis, Universitat Rovira i Virgili, 2013. http://hdl.handle.net/10803/127108.

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En esta tesis doctoral seha desarrollado el cálculo de la fiabilidad de clasificación y de la fiabilidad de predicción utilizando el método de los k-vecinos más cercanos (k-nearest neighbours, kNN) y estrategias de remuestreo basadas en bootstrap. Se han desarrollado, además, dos nuevos métodos de clasificación:Probabilistic Bootstrapk-Nearest Neighbours (PBkNN) y Bagged k-Nearest Neighbours (BaggedkNN),yun nuevo método de predicción,el Direct OrthogonalizationkNN (DOkNN).En todos los casos, los resultados obtenidos con los nuevos métodos han sido comparables o mejores que los obtenidos utiliz

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Andersson, Björn, and Marie Persson. "Software Reliability Prediction – An Evaluation of a Novel Technique." Thesis, Blekinge Tekniska Högskola, Avdelningen för programvarusystem, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3589.

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Along with continuously increasing computerization, our expectations on software and hardware reliability increase considerably. Therefore, software reliability has become one of the most important software quality attributes. Software reliability modeling based on test data is done to estimate whether the current reliability level meets the requirements for the product. Software reliability modeling also provides possibilities to predict reliability. Costs of software developing and tests together with profit issues in relation to software reliability are one of the main objectives to softwar

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Rutaganda, Remmy. "Automated Model-Based Reliability Prediction and Fault Tree Analysis." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-67240.

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This work was undertaken as a final year project in Computer Engineering, within the Department of Computer and Information Science at Linköping University. At the Department of Computer and Information Science, work oriented at testing and analyzing applications is developed to provide solution approaches to problems that arise in system product development. One of the current applications being developed is the ‘Systemics Analyst’. The purpose of the application is to facilitate for system developers with an analysis tool permitting insights on system reliability, system critical components,

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Place, C. S. "Modelling of multiple failure mechanisms for system reliability prediction." Thesis, Cranfield University, 2002. http://dspace.lib.cranfield.ac.uk/handle/1826/3320.

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Helicopters are highly dependent on their transmission systems, which provide the vital links from the engines to the rotor and ancillary systems. Components are highly loaded and must be manufactured to a high degree of accuracy; the lack of redundancy implies that this is a 'series-chain' system. Existing techniques for calculating expected life are based upon historical data from different gearbox and helicopter types, thus limiting the confidence of the results. Design techniques may be conservative in some areas, whilst neglecting to consider different load patterns, usage, maintenance an

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Ding, Hai. "Prediction and validation of thermomechanical reliability in electronic packaging." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/17565.

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Dennison, Thomas E. "Fitting and prediction uncertainty for a software reliability model." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23678.

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Alturk, Lutfiah Ismael. "On statistical reliability modeling : methods of inference and prediction." Thesis, University of Surrey, 2007. http://epubs.surrey.ac.uk/843301/.

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Over the last 35 years many statistical models have been proposed for the quantitative evaluation of software reliability. All the existing reliability models show a wide variability in predictive validity across data sets. In this thesis, we discuss several Non-Homogenous Poisson Process (NHPP) models comprehensively. A theoretical review of these models is provided. For the two types of data, count and time data, the likelihood equations are obtained. We then generalize a very popular existing Software Reliability Growth Model (SRGM), the Littlewood model. The mathematical expressions of som

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Campean, Ioan Felician. "Product reliability analysis and prediction : applications to mechanical systems." Thesis, Bucks New University, 1998. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.714448.

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