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 33 for “"Four Systems"”.
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Smooth Voice-Leading Systems for Atonal Music
… the historical study relating to voice-leading systems for atonal music, a heavily researched field, and I focus on the interval array in pitch-class series.This dissertation introduces a partition of Schoenberg’s signature set, the 6–Z44 hexachord, into four systems (orbits), in …
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Enabling Contactless Sleep Studies at Home using Wireless Signals
… measurements. Specifically, we propose four systems that leverage radio frequency (RF) signals to remotely and automatically monitor the user's sleep in the user's bedroom. First, we present EZ-Sleep, the first contactless sleep sensor that automatically identifies bed entries and exits, …
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Roles for multiple iron acquisition systems in Vibrio cholerae
… iron. A number of V. cholerae iron acquisition systems have been identified, and altogether are necessary for growth; however, the roles of each individual system are poorly understood. To test the roles of individual systems, we generated a series of mutants in which only one of the four …
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Investigation of injection moulding for novel drug delivery systems. An investigation into the use of injection moulding to produce pharmaceutical dosage forms and to understand the relationship between materials, processing conditions and performance, in particular drug release and stability
… for the development of novel drug delivery systems. Controlled release formulations were developed using a substituted cellulose derivative, hydroxypropyl methyl cellulose acetate succinate (HPMCAS) and a graft co-polymer (Soluplus®). BCS class II drugs ibuprofen and the felodipine were …
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Targeted Degradation of Trinitrotoluene Using Iron (II)-Cyclodextrin-Peroxide Systems
… rate and extent of TNT degraded by Fe2+- CD-H2O2 systems were significantly enhanced as compared to the classic Fenton method. Further, in water system with interfering substance - humic acid, which tends to associate with TNT, the addition of cyclodextrin helped to improve the efficiency of …
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Engineering and use of plant viral expression vectors
Different plant virus-based expression systems were developed and compared using the colorectal cancer antibody CO17-1A and the corresponding antigen GA733-2 as model proteins. Tobacco mosaic virus (TMV) and alfalfa mosaic virus (AlMV) were used to construct the vector backbones of four systems to …
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Impacts of the Erosion of State Funding for Public Higher Education: Longitudinal Case Studies of Four State Systems – California, Georgia, New York and Wisconsin
… about individual state public higher education systems. This study provides a fifty-year, fifty-state history of funding for the operating costs of higher education and new information, from the four quadrants of the country, illustrating the impacts of state appropriations, access and cost of …
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Self-assembly of conformal polymer electrolyte film for lithium ion microbatteries
… using water instead of PEO, for a total of four systems tested. This data allowed an estimate for the experimental surface energy components of LCO to be derived, resulting in 18.3 ± 1 mJ/m2 for [gamma]LW, 0.22 ± 0.02 mJ/m2 for [gamma]+, and 5.8 ± 1.6 mJ/m2 for [gamma]-, compared to the …
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Mechanisms of deformation in beta-brass single crystals
… to either of the two (101) [111] or (211) [111] systems. Cross-slip in the statically deformed crystals was evidenced by the wavy appearance of the slip traces. Under dynamic loading (strain rates > 103 sec-1) the crystals exhibited large yield drops followed by a linear rate of work-hardening …
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Systems Dynamics Simulation To Improve Timber Harvesting System Management
… assist with harvest system assignment decisions. Four general harvesting systems: manual, mechanized, shovel and cut-to-length can be modeled to harvest timber, from standing trees to processed logs loaded on to trucks. Model testing showed that as terrain, tract and system characteristics …
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Promotion of Heterogeneous Acid and Base Catalysts for Biomass Upgrading
… span two orders of magnitude across the four systems; at 363 K, the highest rates were observed over hydrophobic Hf-BEA-F in toluene, while the lowest rates were observed in hydrophilic Hf-BEA-OH in acetonitrile. Despite the substantial rate constant variation across the four systems, …
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Assessment of Atrazine in a Rural Water Source: Rough River Lake, Kentucky
… of drinking water for many rural water supply systems. Four systems at Rough River Lake, Kentucky, have had high levels of atrazine in raw water and in some cases finished water that have exceeded the legal limit of 3 parts per billion (ppb). The Rough River Lake watershed is 1,700-km2, much of …
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Development of new analytical techniques for chaotic time series
… In addition, our results allow us to identify systems that can provide suitable benchmarks for the comparison and ranking of different embedding methods. The second main result concerns the development of a new method for the assessment of the optimal embedding parameters. Our method is based …
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Studies of the Coalescence of Dispersions in Particulate Packings
… with a packing of equal sized glass spheres. Four systems were studied and a correlation was developed using a dimensional analysis to evaluate the parameters affecting the exit drop size of a packed bed. A technique was developed to evaluate the mean exit drop size by producing a Shadowgraph …
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Enhancing spectrum utilization through cooperation and cognition in wireless systems
… utilization. Specifically, it introduces four new systems that embody a cross-layer design for cognition and cooperation. The first system, SWIFT, is a cognitive cross technology solution that enables wideband devices to exploit higher layer network semantics to adaptively sense which …
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X-ray spectroscopy of low-mass X-ray binaries
… Previous low-resolution X-ray spectra of four systems (4U 0614+091, 2S 0918-549, 4U 1543-624, and 4U 1850-087) all contain a broad residual near 0.7 keV which had been attributed to unresolved line emission. I show that this residual is due to an incorrect model of the intervening …
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Computer simulation of rod-sphere mixtures.
… and any LC phases have been studied for four systems which differ in the interaction potential between unlike particles. A range of contrasting microphase separated structures including bicontinuous, cubic, and micelle-like arrangement have been observed in bulk. Thirdly, the four types …
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Development of a photobioreactor for the cultivation of the freshwater microalga Haematococcus pluvialis
… for the commercial production of H. pluvialis. Four successive air-lift driven novel tubular photobioreactors (termed TBRI, TBR2, AAPS™I and AAPS™2) were developed for the photosynthetic cultivation of H. pluvialis. Physical assessment revealed that the four systems differed in terms of their …
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Energy Landscaping - On the Relationship between Functionality and Sequence Mutations for Multifunctional Biomolecules
… landscape framework is employed to analyse four example systems. Additionally, this study analyses mutants for all four systems, where the mutations are chosen to change properties of the systems without destabilising the native sequence ensemble entirely. The first system considered is a …
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Estimation of economic weights for a beef cattle selection index
… low cow herd costs, were simulated. In all four systems, WMA and CP had quadratic effects (R² > .99) on cost over the range simulated. PMA effects were also curvilinear but could not be described by a simple quadratic curve (R² < .63). PMA appears to have a feasible range within which COST …
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