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 71 for “"Model formulation"”.
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Simulation Of The Undiseased Human Cardiac Ventricular Action Potential: Model Formulation, Experimental Validation And Application
Creation of an accurate model for the undiseased human ventricular action potential: AP) which reproduces a broad range of physiological behaviors requires extensive experimental data, of which essential elements have been unavailable. We developed and validated such a model using new experimental …
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The Effect of Model Formulation on the Comparative Performance of Artificial Neural Networks and Regression
… used to construct predictive statistical models, relating one or more independent variables (inputs) to a dependent variable (output). Artificial neural networks can also be constructed and trained to learn these complex relationships, and have been shown to perform at least as well as …
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Simulation and queueing network model formulation of mixed automated and non-automated traffic in urban settings
… Manually driven and autonomous vehicles are modeled in a simulation environment with different behavioral models obtained from the literature. Mixed traffic is simulated in a simple network featuring traffic flowing through an isolated signalized intersection. The green phase length, …
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An Analytical Framework and Model Formulation for Measuring Risk in Engineering Enterprise Systems: A Capability Portfolio Perspective
… an analytical framework and computational model for assessing risk in engineering enterprise systems. It addresses the engineering management problem of how to represent, model, and measure risk in large-scale, complex systems engineered to function in enterprise-wide environments.</p> …
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Terminal transient for minimum-time dash mission
… is studied using both a reduced-order "energy" model formulation and a point-mass model formulation of the aircraft. The mission is confined to vertical plane maneuvers, and is defined as consisting of three stages; a climb to the dash point,a steady-state dash at the high velocity point, and …
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State Variable and Parameter Estimation
… and uses these parameters to compensate for the model errors. The results show the application of the above topics to some simple linear and non-linear systems and demonstrate the effectiveness of the adaptive filter in situations involving poor models. The adaptive filter also provides …
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Development of a two-dimensional model of blood microcirculation flows
… of a dimensionless blood microcirculation model for the study of blood microcirculation flows. It is a two dimensional, axially symmetric, incompressible, Newtonian-flow, Krogh cylinder model subjected to axially periodic boundary conditions. This model formulation allows for the use of the …
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Application of deterministic operations research for structural optimization
… methodology of operations research: mathematical models are utilized to represent real-world problems and making decisions based on the solutions generated through mathematical models. The discussion is focused on three general categories of structural optimization problems: sizing optimization, …
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Interactive computer graphics in non-linear optimization.
… is then evaluated from the points of view of model formulation and solution, and the requirements of an interactive system for realizing this potential are outlined. Such a system is developed and described, together with a full account of its applications to both real and standard test …
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Developing a framework for predicting the impact of ITS/CVO technology in developing countries
… on implementation. This section will devise model formulation, what data to use, and how to use it. (Abstract shortened by UMI.).
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Modelagem constitutiva de ligas magnéticas com memória de forma
… This work concerns with a novel constitutive model based on internal variables that describe the phenomenological behavior of MSMAs. The model formulation is developed within the framework of continuum mechanics and thermodynamics, defining a mixture for the free energy potential based on four …
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Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems
… of biological stress trajectories. Reactor models are developed for the purpose of optimising plant operation, understood here as maximising the production rate. Complicating this attempt are a) the non-linear dynamics associated with the kinetics and b) the primary reaction's being …
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Transshipment networks for last-mile delivery in congested urban areas
… emerging world. A two-echelon location-routing model formulation is proposed to address the UTN design problem. The formulation combines a mixed-integer programing model with a closed-form routing cost approximation. The model was tested through a consumer goods distribution case study in Latin …
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Identifying predictors of evolutionary dispersion with phylogeographic generalised linear models
Discrete phylogeographic models enable the inference of the geographic history of biological organisms along phylogenetic trees. Frequently applied in the context of epidemiological modelling, phylogeographic generalised linear models were developed to allow for the evaluation of multiple …
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Modelling the Thermal Dynamics of Polygonal Soil Structures in the Permafrost of the Lena Delta, Northern Siberia
… Arctic. In this thesis, an existing permafrost model including conductive heat transfer and the phase change of water is extended to simulate the thermal dynamics of polygonal soil structures in an Arctic tundra wetland in Northern Siberia. A two-dimensional model formulation in cylindrical …
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Statistical methodologies for network meta-analysis with applications in veterinary medicine
… fill these gaps. In Chapter 2, we propose an NMA model for an ordinal outcome that allows for outcome categorizations to vary across trials. It is common for the reporting of ordinal outcomes to differ from trial to trial, and the proposed model allows for data from all available trials to …
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Human machine collaborative decision making in a complex optimization system
… combines traditional goal decomposition with a model formulation into an Iterative Composite Variable Approach for solving large-scale optimization problems.
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Investigating beef cattle prices for short time periods
… of fed cattle prices. Both the general model formulation decision making process and the specific decisions made in formulating the short-run economic model of the fed beef sector of the economy were described. Exploratory work was done in developing both quarterly and monthly economic …
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Computational optimization of phase change materials on adsorbed carbon dioxide capture systems
… development and validation of a finite element model which solves for the fabrication of novel adsorbent structures composited with phase change materials (PCM) optimized in selected design applications. The design applications include internally coated hollow fibers, externally coated annular …
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A three dimensional mathematical model of the human knee
… locomotion is estimated according to available formulations consistent with available methods of solving the indeterminate problem. In the case of the knee joint direct comparisons of results between several optimization methods proposed in the literature presents difficulties due to largely …
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