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 32 for “"Parameter Analysis"”.
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Improving Exploration in Reinforcement Learning through Domain Knowledge and Parameter Analysis
… between the algorithms' and domains' parameters and the exploration efficiency. The goal of solving reinforcement learning problems is to learn how to execute actions in order to maximise the long term reward. Solving this type of problems is a hard task when real domains of realistic …
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Lumped-Parameter Analysis for Shear Failure in the End Slab of Cylindrical Prestressed Concrete Pressure Vessels
Made available in DSpace on 2014-12-10T22:21:29Z (GMT). No. of bitstreams: 1 7114794.pdf: 2578047 bytes, checksum: e48156b07c4e6c62e9fdb61a7fafdcbd (MD5) Previous issue date: 1970
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Machine Learning-Driven Uncertainty Quantification and Parameter Analysis in Fire Risk Assessment for Nuclear Power Plants
… predicting the heat release rate (HRR) — a key parameter for assessing fire severity. This dissertation presents an innovative framework that integrates machine learning (ML) models, particularly neural networks and tree-based algorithms, with uncertainty quantification (UQ) techniques to …
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Parameter analysis of copper-nickel-tungsten prepared via powder metallurgy process for electrical discharge machining of polycrystalline diamond
… and interaction effects of the powder metallurgy parameter. There were four factors involved in this experiment. Factor A which is Type of Cu-Ni; Type A and Type B was defined as categorical factor. Factor B in which Composition of W; 5 Wt.%, 15 Wt. % and 25 Wt.%, was defined as numerical factor. …
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Modeling Electromagnetic Wave Propagation in Electrically Large Structures
… model, which is not possible with existing analysis techniques. Backscatter from the resulting model is about 3 times higher than that of existing dense-medium theories, underlying the importance of exact characterization of the media.</p> <p>Second, a hybrid FD/FDTD/S-parameter analysis is …
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Precision Cosmological Parameter Estimation
… the computationally intensive pieces of the parameter estimation framework to a parallel training step. We then provide a machine learning code that uses this training set to learn the relationship between the underlying cosmological parameters and the function we wish to compute. This code …
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Estudo comparativo de diferentes métodos de alinhamento no eletrocardiograma de alta resolução
… caused by alignment errors (AE), allowing the analysis of ventricular activation late potentials present in the QRS complex. A comparative study was carried out between three methods of alignment, level detector, normalized integral and double integration, aiming at performance evaluation by …
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A Framework for Simplified Residential Energy Consumption Assessment towards Developing Performance Prediction Models for Retrofit Decision-Making
… consumption models. The energy consumption analysis uses a reduced number of energy model equations utilizing a critical, limited set of parameters. The results of the analysis are used to develop the minimum set of consumption influence parameters with predicted effects for each energy …
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A study of two dimensional braided composites
… composite is obtained in a close form by the analysis of elastic deformation energy in repeat-unit-cell of braided composites. Effective stiffness consists of contributions of axial yarn, braiding yarn, and matrix material. Each of them takes a different weight in the effective stiffness. The …
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A Tri-Ridged Flared Horn for Radio Astronomy Applications
… research in this dissertation covers the modal analysis of three-fold symmetric structures, specifically the Tri-Ridged Wavguide (TRWG). The modal properties of these structures show high single-mode bandwidth, which presents an opportunity to check for viability in radio astronomy applications. …
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On the Growth Rate of Turbulent Mixing Layers: A New Parametric Model
… accepted models and practices, including error analysis of the convective Mach number derivation and a critical analysis of Slessor’s re-normalization technique which affected his 1998 compressibility parameter. Analysis of the database suggested that a distinction should be made between …
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Furnace offgas waste heat utilization
… of the flow at the outlet of the duct. A parameter analysis was done on this model by varying the height and the width of the heat exchanger to determine the effect of those dimensions on the outlet temperature and heat transfer. The radiation heat transfer was also investigated. An …
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Evaluation of analytical and experimental methods to predict constrained layer damping behavior
… for model comparison, sensitivity to design parameters, and evaluation of experimental loss factor estimation techniques. Model comparison for damping estimation and resonant frequency prediction was performed between finite element analysis (FEA) Ross, Kerwin, and Ungar theory (RKU), …
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Study of the Dynamics of Retaining GT-B Fold Glycosyltransferases Using Hydrogen Deuterium Exchange Mass Spectrometry
… uniformly influencecatalytic rates, with kinetic parameter analysis suggesting a minor role of volume exclusion.Conversely, crowder-substrate or crowder-protein interactions play a significant role in alteringkinetic parameters. In summary, these studies contribute to comprehending the mechanisms …
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Recent extreme events in a tropical stalagmite: Multi-proxy records and analysis of ecosystem delta carbon-13 value sensitivity to weak climate forcing
… events through very high-resolution, multi-parameter analysis of a rapidly growing, fracture-fed tropical stalagmite. A series of sample screening steps were developed prior to stalagmite collection in the field in order to increase the likelihood of collecting suitable samples sensitive to …
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Nonlinear oscillations in high power systems
… strategy which starts from a distributed parameter analysis to obtain a lumped parameter model is introduced. In this case, the proposed methodology is based on the assumption that the heat transfer problem can be assumed to be linear and the thermal impedances approaches can be therefore …
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The Effect of Suspension on Parametric Stability and Bifurcation of Geared Systems in Permanent Contact Regime
… between the teeth in mesh, for bad range of parameters, or poor operational conditions, separation of the teeth can occur. This results in free play mode, where the teeth are no longer in contact. The separation of the teeth results in different impact phases when the teeth come back into …
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A combined size reduction and liberation model of grinding
… for batch grinding operation. The model parameters include conventional breakage rate and breakage distribution functions, along with a new parameter i.e., liberation function that is used to describe changes in particle composition. These parameters have been determined experimentally by …
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Assessment of Intrinsic Bioremediation at a PCE Contaminated Site
Groundwater parameter analysis, microcosm experiments, and microcosms modeling were undertaken to assess the potential of Monitored Natural Attenuation as a remediation strategy at Site 12 at the Naval Amphibious Base (NAB) Little Creek. Site 12 was contaminated with PCE waste disposed by a former …
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