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 24 for “"Computer simulation--Models"”.
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Automatically generating computer simulation models from business process models.
… to use both Business Process Modelling and Simulation tools for a variety of business operations. Although these tools are used for different purposes, they are often used on the same projects, but at a different point in its lifecycle. Business Process Modelling is a static modelling tool, …
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A Study of Comprehensive Computer Simulation Models in Institutions of Higher Education
Made available in DSpace on 2014-12-10T18:48:06Z (GMT). No. of bitstreams: 1 7500431.pdf: 7623513 bytes, checksum: 0c6ff3e661f06caaf7485fc0940bf361 (MD5) Previous issue date: 1974
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Computational Framework for Uncertainty Quantification, Sensitivity Analysis and Experimental Design of Network-based Computer Simulation Models
… capturing a real-world, networked system using a simulation model, features are usually omitted or represented by probability distributions. Verification and validation (V and V) of such models is an inherent and fundamental challenge. Central to V and V, but also to model analysis and prediction, …
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Computer simulation modeling and circulation: An exploration of some of the factors that inhibit the adoption of computer simulation models in libraries
In 1975 M. Bommer said that computer simulation models had remained on the fringes of library science because too much attention has been devoted to the construction and solution of complex mathematical models, and too little attention to the implementation aspect. In 1980 A. Bosman and H. H. Sol …
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LASSO-OPTIMAL SUPERSATURATED DESIGN AND ANALYSIS FOR FACTOR SCREENING IN SIMULATION EXPERIMENTS
Complex systems such as large-scale computer simulation models typically involve a large number of factors. When investigating such a system, screening experiments are often used to sift through these factors to identify a subgroup of factors that most significantly influence the interested …
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The impact of INPO on plant performance and operations
… and operations. The program used to create these computer simulation models was VENSIM, a systems dynamics utility by Ventana Systems.
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Optimisation of complex simulation models
Computer simulation models are widely and frequently used to model real systems to predict output responses under specified input conditions. Choosing optimal simulation parameters leads to improved operation of the model but it is still a challenge as to how to go about optimally selecting these …
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A systems approach to strategic planning for the Civil Engineering Department
… structures, a linear programming model, and computer simulation models for the Department.
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Efficient computer experiment designs for Gaussian process surrogates
… algorithms for finite element analysis, today's computer simulation models often contain complex calculations that can result in a wealth of knowledge. Gaussian processes (GPs) are highly desirable models for computer experiments for their predictive accuracy and uncertainty quantification. This …
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Coupling the effects of rubber aging and wear and studying its effect on motorcycle performance
… study the effect of rubber aging combined with computer simulation models to predict how much the rubber wears out over time. It was found that as rubber gets older it doesn't wear out much faster. This might be because the changes in the rubber properties as it ages are very small. The rubber …
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Computer-Simulation-Assisted Lean Manufacturing Training
<p>This thesis assesses the potential of using computer simulation to aid existing lean manufacturing training methods such as lecture and live simulation. An investigation of this possibility was carried out in conjunction with UMEP's Lean 101 class. In the study, two experimental computer …
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Systems Dynamics Simulation To Improve Timber Harvesting System Management
Two computer simulation models were developed to address harvest system - stand assignment and wood flow variability problems in the southeast United States. The Harvest System Assignment (HSA) model is used to evaluate the impact of a particular stand assignment on harvest system effectiveness and …
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Development of High-Speed Camera Techniques for Droplet Measurement in Annular Flows
… two-phase flow data in the development of computer simulation models, with a specific focus on the annular flow regime's droplet behavior. The study aims to contribute to the evaluation of safety and efficiency in nuclear reactors that handle fluids transitioning between liquid and gas …
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The Effect of Wall Jet Flow on Local Scour Hole
… out, using fixed and mobile sediment beds. Computer simulation models for the flow within the jet and resulting sediment transport were developed and their results analysed in this study. In the experimental phase, tests were carried out with both fixed and mobile sediment beds. The shape of …
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Piston ring pack design effects on production spark ignition engine oil consumption : a simulation analysis
… flow, and then control it. Analytical tools and computer simulation models have been created to assist in predicting the performance of a given ring pack. This study intended to be an experimental look at the effects of piston-ring-pack design changes on the steady-state and transient oil …
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Risk from network disruptions in an aerospace supply chain
… as the example, primarily through the use of a computer simulation model. Uncertainty in the current marketplace requires managers to be cognizant of the adverse impact of risk on their company's performance. However, managers who lack formal procedures for dealing with the potential impact of …
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Assessing the Reliability of Computer Simulation Modeling for Monitoring and Managing Indicators of Wilderness Solitude in Great Smoky Mountains National Park
… recreation management and planning have used computer simulation modeling to demonstrate its utility as a tool to help managers monitor encounters and similar visitor use-related indicators of quality. However, previous applications of computer simulation modeling to outdoor recreation …
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An investigation into control strategies for activated sludge wastewater treatment plants.
… This thesis presents the development of MATLAB computer simulation models for activated sludge wastewater treatment plants. A comparison of control systems has been made using these models for typical operating conditions of wastewater treatment processes, such as influent flow pattern and …
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Towards a Health Economic Simulation Model of Type 2 Diabetes in Sweden
… part of the data required in updating/developing computer simulation models (CSMs) for type 2 diabetes mellitus (T2DM) using data obtained from routine clinical practice in Sweden. In paper I, evolution of five biomarkers (i.e., HbA1c, systolic blood pressure, BMI, LDL and total to HDL cholesterol …
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Multiobjective Simulation Optimization Using Enhanced Evolutionary Algorithm Approaches
… This is often the case when complex computer simulation models are used to repeatedly evaluate possible solutions in search of the best solution (or set of solutions). Therefore, multiobjective optimization approaches capable of rapidly finding a diverse set of Pareto optimal …
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