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 28 for “"Mechanism Analysis"”.
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Geometry-Aware Methodology for Coupling Mechanism Analysis and Radiation Mechanism Analysis
… presented to analyze the coupling and radiation mechanism in electronic devices.</p> <p>To investigate the coupling between the distributive geometries in the radio frequency interference (RFI) problem, a mesh-dependent partition-based coupling mechanism analysis method is provided based on the …
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Phase transfer catalysis: catalyst screening, reaction development, and mechanism analysis
… these studies, a deeper understanding of the PTC mechanism was sought for the alkylation of phenol. In regards to the asymmetric PTC (APTC) alkylation, a small library of catalysts derived from Cinchona alkaloids was examined for selectivity and activity. An array of substituent modifications were …
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A PHIGS based interactive graphical preprocessor for spatial mechanism analysis and synthesis
… graphical preprocessor for data input to spatial mechanism analysis and synthesis codes. A goal in the development of this preprocessor is to produce a graphical data input program that is both graphics device-independent and not structured for the input of data to any particular mechanism …
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Honeycomb structured porous films from different polymer architectures - preparation, mechanism, analysis and post-treatment
This dissertation studies and examines the process of formation of honeycomb structured porous films using various polymer architectures ranging from linear, comb, star polymers and a random copolymer. Four casting methods were designed and applied for the production of structured porous materials. …
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ScPEFT : a parameter-efficient fine-tuning framework for enhancing single-cell large language models in out-of-context
… cell population tasks. Its attention-mechanism analysis identified COVID-related genes associated with specific cell states and uncovered unique blood cell subpopulations, demonstrating scPEFT's capacity for conditionspecific interpretations. These findings position scPEFT as an …
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Metal-assisted chemical etching of 4H silicon carbide
… of porosity and etch rate are presented, with a mechanism analysis provided to complement the explanations in the literature.
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The Foundation for CADSPAM: Computer Aided Design of SPAtial Mechanisms
… program for the unified design of spatial mechanisms. The program will be capable of synthesizing any mechanism that can be described using an equivalent chain containing only revolute and prismatic joints. The supporting analysis routine will be general and will be able to analyze any …
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Suppression of the fake lepton background in same-sign W-boson scattering with the ATLAS experiment
… of electroweak symmetry breaking and the Higgs mechanism. Analysis is currently underway to measure the cross-section to a significance of 5σ or higher using √s = 13 TeV data from the ATLAS detector's Run 2. The two scattered W-bosons decay leptonically leaving a distinctive experimental …
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Motor simulation and parameter identification in a reciprocating mechanism
In this study, a slider-crank mechanism driven by an induction motor was studied for the purpose of deriving simulation data for the identification of the important operating parameters in the machine. First, a modification of a motor simulation program emphasizing losses is presented. The program …
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Aqueous-phase Organic Chemistry in the Atmosphere
… was achieved, permitting complete reaction mechanisms to be presented. An unexpected class of compounds, α-hydroxyhydroperoxide (α-HHP), was observed during the experiments, and the formation of this class of compounds was further quantified. Formation of α-HHP can be potentially important …
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Essays in experimental macroeconomics
… inflation expectations and uncertainty. A causal mechanism analysis shows that intervention increases trust in the central bank, which in turn changes inflation expectations. Chapter 5 concludes with a discussion of these results.
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Investigation on removal mechanism in catalytic aided electrical discharge machining of polycrystalline diamond
… EDM performance, machined surface and erosion mechanism of PCD in the influence of different types of electrode which are Copper-Nickel (Cu-Ni) and Copper (Cu) in roughing and finishing condition. Two levels of full factorial with eight center points and two replication technique was used to …
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Temporal variation, regional sources, and removal processes of volatile organic compounds in New England
… which is a previously unaccounted for removal mechanism. Analysis of alkyl nitrate/parent hydrocarbon ratios, measurements made onboard the NOAA R/V Ronald H. Brown during the 2002 New England Air Quality Study, and canister samples collected throughout the Great Bay estuary in August 2003 are …
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Theoretical Study on the Mechanism of Removing Nitrogen Oxides using Isocyanic Acid.
<p>The mechanism of RAPRENO<sub>x</sub> reactions - RAPid REduction of Nitrogen Oxides using Isocyanic acid - proposed by Robert A. Perry<sup>1</sup> in an attempt to help control the emission of nitrogen oxides pollutant into the atmosphere, has been re-investigated theoretically. The study of …
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A fault-controlled geothermal system in Tarutung (North Sumatra, Indonesia)investigated by seismological analysis
… basin, the seismicity delineation and the focal mechanism correlate with the shape and the characteristics of the strike-slip Sumatran fault. Within the Tarutung basin, the seismicity is distributed more broadly which coincides with the margin of the basin. An extensional duplex system in the …
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On Non-rigid Linkages
Linkage mechanisms and pin-jointed truss structures have been central to engineering design for centuries, providing the fundamental models through which motion transmission and structural rigidity have been understood. Conventional kinematic theory assumes perfectly rigid links joined by ideal …
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Identifiable Causal Representation Learning: Unsupervised, Multi-View, and Multi-Environment
… rich descriptions of complex systems as sets of mechanisms by which each variable is influenced by its direct causes. They support reasoning about manipulating parts of the system, capture a whole range of interventional distributions, and thus hold promise for addressing some of the open …
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Characterization and Failure Mode Analysis of Cascode GaN HEMT
… are extracted based on finite element analysis (FEA) methods. Then the accuracy of the simulation model is verified by a double-pulse tester, and the simulation results match well with experiment in terms of both device switching waveform and switching energy. Based on the simulation …
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Effects of Light on BDBT Puncta Formation in the Drosophila Eye Reveal Involvement of BDBT with Color Preference Behavior and Distinct Nuclear Localization Pathways for DBT and PER
… the research focus is on elucidating the mechanism behind BRIDE OF DOUBLETIME (BDBT) puncta/foci formation. During this process it was discovered that both the circadian and visual photoreceptors have roles for normal cycles of BDBT foci formation. This BDBT foci cycling is needed for …
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