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 13 of 13 for “"Bottom-up method"”.
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Fabrication of site-controlled quantum structures for optoelectronic devices
… to create nanoscale patterns. The first is a bottom-up method which leads to the formation of “regrown QDs”. In this approach, high optical quality InAs QDs are regrown in designed nucleation sites over GaAs substrate, and the effects of process and growth parameters on the structural and …
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Localized change management in two cases : supply base cost escalation and obsolescence management
… The first case is a change in how escalation in supply costs, or headwind, is forecasted. The goal in this case is a quick, top-down method for forecasting headwind to replace a time-intensive, bottom-up method. The second case is a change in the evaluation method of obsolescence risk mitigation …
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Structure and Properties of Nano- and Meso-scale Materials Prepared by Designed Self-Aasembly of Nanoparticles
… building blocks. In chapter 3, we developed a method for terminating the colloidal polymerization process of gold nanorods by post-assembly photocrosslinking of polymer ligands. By functionalizing gold nanorods with a hydrophobic polymer containing pendant double bonds, we were able to …
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Cubosome and Hexosome Microparticles: Shape, Rheology, and Templating
… and broader applications. In this thesis, a bottom-up method based on a precursor emulsion is developed to produce microscale cubosomes and hexosomes in a controlled way. Emulsion droplets containing water, ethanol, the lipid glyceryl monooleate, and the desired additives are suspended in a …
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Meta-analysis of Tokamak reactor designs
… understanding not available in the traditional bottom-up method of looking at each design individually. Forty tokamak designs intended to produce significant fusion power at gains above one were identified in the published literature. Thirty-three important parameters describing a tokamak design …
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Cancer treatment pathways: AML a detailed costing study example
… overall/lifetime treatment costs by applying the bottom-up method. Methods: In order to obtain overall/lifetime cost for AML/APML treatments, an innovative three-phase costing study was conducted on 239 newly diagnosed (during September 2004 to September 2006) adult AML/APML patients in …
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Hierarchical Semiconductor, Metal and Hybrid Nanostructures and the Study of their Light-matter Interactions
… semiconductors and composites, organized through bottom-up design methods. 1) By following the dynamic generation of hot-spots in self-assembled chains of gold nanorods (NRs), we have established a direct correlation between ensemble-averaged surface-enhanced Raman scattering (SERS) and extinction …
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Selective lateral nano-epitaxy for manufacturable nanowire electronics
… materials and guide nanowire growth, is a unique bottom-up method suitable for synthesizing extremely thin nanowires with high aspect ratios and axially uniform diameters. Unlike conventional VLS nanowires which grow along out-of-plane directions with respect to the substrate surface, the recently …
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Ökonomische und ökologische Effekte der Nutzung des Werkstoffs Aluminium : ein Beitrag zur Berücksichtigung der Nutzungsphase in der modellgestützten Stoffstromanalyse
… of passenger cars using a strongly technical bottom-up method has revealed that the use phase may play a very important role in the complete life-cycle. However, top-down methods such as economic input-output (io) analysis are seldom adopted in investigations of aluminium lightweight …
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Hierarchical forecasting of electricity demand in South Africa
… electricity demand using South African data. The methods used are top-down, bottom-up and optimal combination. The top-down method is based on the disaggregation of the forecasts of the total series and distribute these down the hierarchy based on the historical proportions of the data. The …
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A holistic method for improving software product and process quality
… which, even when not failing, inevitably require upgrades, maintenance and improvement because of malfunctioning or changing requirements, or because of changing technologies, languages, or platforms. In such cases, the dilemma is whether to develop solutions from scratch or to re-engineer a …
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Development of a methodology and modelling toolkit to aid carbon neutrality planning in industrial manufacturing
… This thesis explores available technical support for Irish industrial organisations targeting decarbonisation and carbon neutrality. An extensive review of the current academic, public, and commercial supports is presented, and three research gaps are identified—open-access, detailed, …
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Soft Self-assembly and Densest Packings in Colloidal Models
… in life. Self-assembly, categorized into the ‘bottom-up’ method, is an important approach in building man-made crystals. Elegant and useful structures have been obtain by colloidal self-assembly, including triangular, kagome and square lattices in two- dimensional systems and hexagonal layered …