Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 31 for “"reliability measures"”.
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CT3 as an Index of Knowledge Domain Structure: Distributions for Order Analysis and Information Hierarchies
… is articulating all possible CT3 and KR21 reliability measures for every case of a 5x5 binary matrix (32,996,500 possible matrices). The study has three purposes. The first purpose is to calculate CT3 for every matrix and compare the results to the proposed optimum range of .3 to .5. The …
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Narrative discourse production in language impaired learning disabled young adolescents
… disabled young adolescents on a number of measures: story length, amount of information, coherence, evaluation and cohesion. In addition, it compared the performance of language impaired learning disabled and non-learning disabled young adolescents on three types of narrative tasks (story …
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When what is wrong seems right: A Monte Carlo simulation investigating the robustness of coefficient omega to model misspecification
Coefficient omega is a model-based reliability estimate that is unrestricted by assumptions of a unidimensional essentially tau equivalent model. Rather, omega can be adapted to suit the underlying factor structure of a given population. A Monte Carlo simulation was used to investigate the …
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Understanding the fault-tolerance properties of large-scale storage systems
… improved storage efficiency, but their impact on reliability measures is unclear due to the complex relationships inherent to the systems that employ these technologies. Additionally, as systems scale up, they become subject to faults and errors that previous-generation systems may never have …
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Inventory strategies for patented and generic products for a pharmaceutical supply chain
… upstream uncertainty parameter defined as supply reliability. In this instance, supply reliability measures uncertainty in the supply quantity delivered rather than variability in the lead-time for delivery. We consider the impact of the safety stock using two products: a proprietary product that …
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Narrative discourse characteristics of South African Afrikaans speaking Cape Coloureds with aphasia
… transcribed and analysed using more stringent reliability measures. Measures of reliability were obtained by calculating inter-rater and intra-rater reliability measures. The data was analysed in terms of the length of narratives, pr6positional units, quality analysis, analysis of evaluation …
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Analysis and Optimization of Communication Networks with Flow Requirements
… the concept of k-edge connected and k-connected reliability. There, vertices are modelled as fail-safe and edges fail stochastically independent. For a fixxed k, the network is then considered operational when each pair of vertices has k edge disjoint or internally disjoint paths, respectively, …
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Parent-Child Interaction: Development of Measure for a Naturalistic Setting.
… is just as important as quality, and we test the reliability and validity of our instrument developed to quantitatively measure parent-child interaction in the home under realistic conditions. Twenty-eight children’s parents participated in the study over four days. Eight families had two research …
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Reliability analysis of smart electrical transmission system and reliability modeling through dynamic flowgraph methodology
Reliability assessment methods allow the evaluation of the reliability of systems and provide important information on how to improve a system‟s life to reduce risk and hazards. With the advancement in technology, the existing methods were extended and new methods were adopted. The advancement from …
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Uncertainty analysis in software reliability of component-based systems
Several architecture-based software reliability models were proposed in the past. These models compute the point estimate of system reliability by plugging point estimates of unknown parameters into the model. These models however, discard the uncertainty of the parameters, that is, they do not …
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Test-retest Reliability of Intrinsic Human Brain Default-Mode fMRI Connectivity: Slice Acquisition and Physiological Noise Correction Effects
… to investigate their influence on several DMN reliability measures within and between 13 MRI sites. Each site involved five different healthy elderly participants who were scanned twice at least a week apart (5 participants per site). fMRI data analysis was performed once without rPNC and then …
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Tools and Techniques for Evaluating Reliability Trade-offs for Nano-Architectures
… redundancy is not always a solution to the reliability problem, and often too much or too little redundancy may cause degradation in reliability. The key challenge is in determining the granularity at which defect tolerance is designed, and the level of redundancy to achieve a specific level …
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An architectural selection framework for data fusion in sensor platforms
… sensors and their platforms, the influence of reliability measures, and the connection to fusion applications. We present several types of architecture for managing multi-sensor data fusion, specifically as they relate to the tracking-correlation function and blackboard processing …
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Optimal adaptive routing and traffic assignment in stochastic time-dependent networks
… The criteria of optimality are then extended to reliability measures, such as travel time variance and expected early/late schedule delays. The first routing-policy-based stochastic dynamic traffic assignment (DTA) model is established. A general framework is provided and the equilibrium problem …
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The Design and Analysis of Reliable Communication Networks
… is as small as possible.We survey various reliability measures and then deal with the design of a reliable communication network based on the construction of graphs with the smallest number of minimum cut sets. The number of minimum size vertex cut sets may give a much better indication of …
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A MULTI-METHOD STUDY FOR CONSTRUCT DEVELOPMENT ASSOCIATED WITH ESSENTIAL MANAGEMENT PRACTICES FRAMED IN LAWS AND STANDARDS FOR DISABILITY PROGRAMS
… indicators that comprise the minimum outcome measures necessary to evaluate the performance of public rehabilitation programs. Content analysis of laws, regulations, and standards was conducted to identify a basic body of program management knowledge characterized by extracted program themes, …
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Early Empirical Evidence for the Effects of Adaptive Ramp Metering on Measures of Travel Time Reliability
… data. This thesis explores travel time reliability measures for the eastbound (EB) Interstate 80 (I-80) corridor in the San Francisco Bay Area before and after implementation of ARM using INRIX data. These measures include buffer index, planning time, and measures from the literature …
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Development of a career exploration inventory (CEI)
… (CEI) is an innovative instrument which measures developmental work and leisure interests from the past, in the present, and those anticipated in the future. The instrument is a self-administered, scored, and interpreted interest inventory for guided career exploration. Norms were …
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Adaptation and validation of a technology attitude scale for use by American teachers at the middle school level
… (N =185). Statistical analysis included reliability measures using Cronbach's homogeneity coefficient alpha (Attitude Scales) and KuderRichardson 20 (Concept Scales) with attention to demographic information. Both the Attitude Scales (overall correlation .81) and the Concept Scales …
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Modelling and optimization of Safety Instrumented Systems based on dependability and cost measures
… to modelling of SIS. Safety integrity and reliability measures, used as optimization objectives, are quantified by the Average Probability of Failure on Demand (PFDavg) and the Spurious Trip Rate (STR). The third objective is the Lifecycle Cost (LCC); ensuring system cost-effectiveness. The …
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