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Fall 2009
In this study, we describe the use of different silica materials to separate vanadium compounds from Asphaltenes. We used high performance flash chromatography separation method to separate asphaltenes at different solvent strengths on sea sand. The separation conditions were optimized for flow...
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Development of High Efficiency and New Selectivity Liquid Chromatographic Phases for the Separation of Ionic and Hydrophilic Analytes
DownloadFall 2013
Separation of low molecular weight ions and hydrophilic analytes is achieved by high performance ion chromatography (IC) and hydrophilic interaction liquid chromatography (HILIC). The goal of this thesis was three-fold: to increase the efficiency of IC separations by employing small particles; to...
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Spring 2013
The performance of highly anisotropic, nanostructured, thin-film ultrathin-layer chromatography (UTLC) media with porosity and architecture engineered using the glancing-angle deposition (GLAD) process is investigated. Anisotropic structures resembling nanoblades are fabricated on the plates,...
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Fall 2014
Gallium nitride (GaN) high-electron mobility transistors (HEMTs) have great potential for high-power and high-frequency applications, but current leakage issues compromise their reliability. This research focuses on developing GaN metal-oxide semiconductor field-effect transistors (MOSFETs),...
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Spring 2014
Analytical separations are important methods of identifying and quantifying molecular compounds present in complex sample mixtures. These approaches are popular in biochemistry, medical diagnostics, quality control, and numerous other applications. In these techniques, constituent analytes are...
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Engineering Considerations for the Design of High Performance Zinc Oxide Thin Film Transistors
DownloadSpring 2018
Zinc oxide (ZnO) thin film transistors (TFTs) are garnering significant interest recently due to their unique combination of high optical transparency, moderately high electron mobility, good stability, and compatibility with low temperature processing. If a low temperature processed, high...