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 16 of 16 for “"Commercial processes"”.
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Predictive Modeling of Metal-Catalyzed Polyolefin Processes
… process models for metal-catalyzed polyolefin processes. The significance of this work is that it presents a comprehensive approach to polymer process modeling applied to large-scale commercial processes. Most researchers focus only on polymerization mechanisms and reaction kinetics, and …
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The electrochemical production of boron
… difficulties as to be entirely impractical as commercial processes. In the present investigation, the systems 4.5KCl-KBF₄-6B₂O₃ and 8.5KCl-KBF₄ were investigated at 800-850°C in an attempt to duplicate the methods reported in the literature as suitable for use as commercial processes. When the …
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Dynamic pricing mechanisms for airline revenue management : theory, heuristics, and implications
Even as the distribution and sale of commercial airline tickets has shifted in recent years from physical reservation offices to the Internet, many airline commercial processes remain highly reliant on pre-Internet technologies and standards. This legacy infrastructure compels airlines to publish a …
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South African urban solid waste legislation and its application : proposals towards reform
… within an urban area by secondary industrial and commercial processes, domestic activities and littering, and deposited on land. The unique South African context, in which the relevant legislation has developed and been applied, was acknowledged. The overall objective was both: a) to ascertain the …
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The stability of viscoelastic fluids in complex flows : the role of shear and extensional rheology
… of polymeric fluids is important for optimizing commercial processes such as injection molding and fiber spinning. The combination of streamwise curvature and elastic normal stresses can lead to the onset of elastic flow instabilities, severely rate-limiting such processes. This thesis focuses on …
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Acoustic emulsions of liquid, near-critical carbon dioxide and water : application to synthetic chemistry through reaction engineering
… as a selective extraction solvent in several commercial processes. By comparison, development of scCO2 as a reaction solvent has been much less successful due to its limited solvation power. Furthermore, the rates of reactions conducted in scCO2 tend to be slower than and their selectivities …
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Effects of compositional variables on fouling behavior of thin stillage
… primarily from corn. There are two major commercial processes: corn wet milling (CWM) and dry grind corn (DGC). The DGC industry has grown and made 86% of corn ethanol by the end of 2008. During DGC processing, after distillation, the remaining nonfermentable material known as whole …
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Process Modeling of Next-Generation Liquid Fuel Production - Commercial Hydrocracking Process and Biodiesel Manufacturing
… Systems from Plant Data -- Hydrocracking Processes: This work represents a workflow to develop, validate and apply a predictive model for rating and optimization of large-scale integrated refinery reaction and fractionation systems from plant data. We demonstrate the workflow with two …
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Recombinant Protein Production in Bacillus Species, Isolation and Methionine Production in Methionine-producing Microorganisms
… immunity. There is an interest in developing commercial processes for the production of single isomers of CLA by biotransformation of LA using microbial cells and enzymes. However, the evaluation of these strains suggest that growth and LA isomerase production levels by these anaerobes are …
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The design, fabrication, and implications of a solvothermal vapor annealing chamber
… wafers with more dense features than current commercial processes enable. The chamber not only meets the required specifications of the solvothermal vapor annealing process, it also exceeds those expectations by allowing the researcher to reduce overall solvent usage. It supports an internal …
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Atomic layer deposition of photovoltaics
… devices could further the field toward viable commercialisation. The work carried out in this thesis is primarily concerned with the control and modification of electron transport layers (ETLs) deposited by ALD for use in mesoporous and planar perovskite solar cells (PSCs). ALD TiO2 was …
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Examination of stress-induced transformations within multicomponent pharmaceutical crystals
… on large-scale manufacturing as industrial processes may give rise, at various stages, to stress-induced transformations and product modification. This thesis investigates the solid-state properties at play in the case of the surface and structural reorganization which results from the …
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Hardwiring consumer desire: Publishing and promoting the online technocultural experience : a critical textual analysis of Wired magazine and its advertising, 1993-1996
… by interrogating the technological and commercial processes of media evolution in relation to the mid-l990s print magazine and emergent new media technologies.
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Polyol induced extraction (PIE) of water from organic solvents
… far easier to remove, and are better suited to commercial processes.</p> <p>Equilibrium constants for phase separation (K<sub>PS</sub>) have been measured by <sup>1</sup>H NMR and GC-TCD techniques. For the glycerol/ACN/water and sorbitol/ACN/ water systems K<sub>PS</sub> is < 1 indicating that …
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Propuesta de mejora de automatización en los procesos administrativos y comerciales de la empresa Droguería Antonio’s E.I.R.L.
Este Trabajo de Suficiencia Profesional desarrolla una propuesta de mejora basada en la automatización de procesos administrativos y comerciales en la empresa Droguería Importadora Antonio’s E.I.R.L., dedicada a la importación y distribución de equipos médicos. El diagnóstico interno y externo …
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Biofuels from Liquefaction of Marine Microalgae: Production, Upgrading, and Environmental Impacts
… HTL products. These concerns would also apply in commercial situations where alcohol solvents are recycled. Based on these results, a preferred approach may be to only use low concentrations of co-solvents (≤10 %) and not attempt their recovery. Effects of operational conditions, including …