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 “"parametric optimization"”.
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Variational Analysis In Parametric Optimization
… multifunctions. We analyze the parametric sensitivity of either stationary points or stationary point multiplier multifunctions associated with parameterized optimization problems under consideration. The dissertation also focus on a family of parameterized quasi-variational …
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Parametric Optimization Design System for a Fluid Domain Assembly
… with computational fluid dynamics (CFD) and optimization of a 3D jet turbine engine has never been accomplished. This is due mainly to the computational power required, and the lack of associative parametric modeling tools and techniques necessary to adjust and optimize the design. As an …
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Multi-parametric Optimization of Multi-functional Battery Energy Storage Operation
… shifting algorithm in detail. The shifting optimization is constructed with three main functions: peak shaving, firming and arbitrage. It is the first time for a utility scale project that all of these three shifting functions are implemented into one platform. Islanding refers to the …
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Multidisciplinary optimization in aircraft design using analysis technology models
An approach to multidisciplinary optimization is presented which combines the Global Sensitivity Equation method, parametric optimization, and analytic technology models. The result is a powerful yet simple procedure for identifying key design issues. It can be used both to investigate technology …
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Maritime Vehicle Routing under Uncertainty: Liquefied Natural Gas Shipping and Offshore Pipeline Damage Assessment Problems
… is discussed. This problem is formulated to two optimization models: a two-stage stochastic mixed integer programming model and a parametric optimization model. The first one maximizes the overall expected revenue while minimizing disruption cost which results from extreme weathers. The second …
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Safety analysis of a compact integral small light water reactor
… examine its safety performance. Subsequently, a parametric optimization study with the goal of increasing its power density (i.e. improve its market competitiveness) while maintaining safety is performed. A model of the reactor is established using RELAP5/3.3gl, with reference to the features of …
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Hydrodynamics of unconventional SWATH vessels in waves
… effects on their hydrodynamic parameters. The parametric optimization of the hull shape of these vessels to reduce the total resistance in waves yields an interesting hull form where viscous effects become significant and this kind of problem is generally more difficult to solve. This study …
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DEM-based numerical simulation of drainage plows and dewatering trenchers
… are carried out to perform a simulation-based parametric optimization of drainage plow geometry based on the predicted forces, pressure distributions and topsoil placement. Two types of plows, parallel link (PL) and double link (DL), operating in sand and clay soils at various plowing depths …
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Visual analysis and synthesis with physically grounded constraints
… such as scene-specific geometry in a non-parametric optimization framework for (1) revealing the missing parts of an image due to removal of a foreground or background element, (2) recovering high spatial frequency details that are not resolvable in low-resolution observations. I then …
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Fuel-vortex interactions for enhanced mixing in supersonic flow
… that these results merit further studies and parametric optimization of the aero-ramp or similar configurations. It is also concluded that further studies may be conducted to establish the absolute quantitative nature of the Rayleigh scattering technique.
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Simplified Floor-Area-Based Energy-Moisture-Economic Model for Residential Buildings
… a 90% confidence interval. Using the model, parametric optimization studies were conducted in order to study how each variable affects energy and life cycle cost. An efficient whole-building optimization procedure was developed to determine the optimal design based on key design parameters. …
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M♮-convexity, S-convexity, and their applications in operations
… with substitute structures which often result in parametric optimization models maximizing submodular objective functions, and it is desirable to derive structural properties including monotone comparative statics of the optimal solutions or preservation of submodularity under the optimization …
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Design and Integration of a Novel Robotic Leg Mechanism for Dynamic Locomotion at High-Speeds
… a reference trajectory is established and a parametric optimization over the design space is performed to drive the system to an optimal configuration. The evolved design is identified as the Bio-Inspired One-DOF Leg for Trotting (BOLT). The dynamics of this closed kinematic chain mechanism …
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Advanced Energy Modelling and Life Cycle Assessment of Indoor Agriculture
… the energy demand of commercial greenhouses, parametric optimization of major growing environment variables including cladding material and window to wall ratio as well as the characteristics of the solar thermal model elements such as hot water tank capacity and heat exchanger effectiveness …
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Distributed Cognitive RAT Selection in 5G Heterogeneous Networks: A Machine Learning Approach
… high computational complexity required for multi-parametric optimization of utility functions, the difficulty of modeling and solving Markov Decision Processes, the lack of guarantees of stability of Game Theory algorithms, and the rigidness of simpler methods like Cell Range Expansion and …
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Development of Broadband Semiconductor Laser Frequency Combs
… property, and conducted parallel hybrid 1D-2D parametric optimization in a vast parameter space. Last but not the least, through years of process optimization, we overcame several major challenges and fabricated high aspect-ratio, low critical dimension (CD) variation compensator structures as …
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Enhanced Rainbow Trapping in Width-graded Chirped MIM Nano-gratings for High-sensitivity Multiwavelength Bio-molecular Detection
… mode transformation among the grooves through parametric optimization of groove width and groove-to-groove separation. Experimentally, we fabricate nano-gratings using electron beam lithography with a minimum groove width of 40 nm at the center of the grating. Upon illumination, maximal …
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The Relative Contribution of Hudson River Tributaries to River Herring Spawning Dynamics
… uncertainty fully characterized, one can utilize parametric optimization as a mechanism for inferring wide spread population phenomena from more localized estimates (Tam et al., 2002). Custom designed egg mats were deployed in Black Creek (Esopus, New York) and the Fall Kill (Poughkeepsie, New …
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Approximation of Multiobjective Optimization Problems
We study optimization problems with multiple objectives. Such problems are pervasive across many diverse disciplines -- in economics, engineering, healthcare, biology, to name but a few -- and heuristic approaches to solve them have already been deployed in several areas, in both academia and …
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