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 68 for “"Growth Experiments"”.
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Modeling and control of a silicon substrate heater for carbon nanotube growth experiments
… group at MIT is working on carbon nanotube growth experiments on silicon substrates and in microfabricated silicon devices, to try to produce improved bulk nanotube growth. For this thesis, a heating control system was designed and implemented for eventual use in CNT growth experiments. The …
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Gravitational effects on defect formation in melt grown photorefractive materials : bismuth silicate
… a role in native defect formation. Microgravity growth experiments are proposed in order to establish a controlled, convection-free environment to study the origin and nature of the critical native defect. This work aims at resolving critical aspects of performing quantitative microgravity growth …
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Integrated microbioreactor arrays for high-throughput experimentation
… such as human insulin and human growth hormone, and other products such as amino acids and biopolymers. Because bioprocesses involve the complicated interaction between the genetics of the microorganisms and their chemical and environmental conditions, hundreds or thousands of …
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An Integrated Approach to Improving Efficiency in Photosynthetic Microbial Systems
… These characteristics, along with their rapid growth rates and amenability to genetic modifications, merit research of cyanobacteria for roles in mitigating greenhouse gas emissions and carbon capture and sequestration. Despite these favourable attributes, cyanobacterial bioenergy has yet to …
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Influence of temperature, soil moisture, and planting depth on germination and emergence of 'Packman' broccoli
… are often less than favorable for seedling growth. Experiments were designed to test the temperature and moisture stress limits for germination and emergence of 'Packman' broccoli, under the controlled conditions of growth chambers.
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Robot-trifle: A robotic system for automated combinatorial growth phenotyping
… The first part of the pipeline analyzes known growth data to produce media elimination experiments that are planned and executed by the second and third sections. This software package aims to streamline metabolic profiling by automating the extensive bookkeeping and manual labor required to …
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Bacteriophage Sp10 Infection of Bacillus Subtilis
… Phage production was analyzed in single-burst growth experiments and protein profiles were generated with PAGE-SDS. Analysis of the profiles in tube and/or slab gels revealed altered banding patterns with phage-infected versus uninfected cells. While no viral-coded nonstructural proteins were …
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Mechanisms and kinetics of silicon atomic-layer epitaxy on silicon(001)2x1 and germanium(001)2x1
… Si$\sb2$H$\sb6.$ The ALE deposition rate R per growth cycle remains constant at 0.43 monolayers (ML), 1 ML = $6.8\times10\sp{14}$ cm$\sp{-2}$, over a wide range of deposition parameters: growth temperature (T$\sb{\rm S}$ = 180-400$\sp\circ$C), Si$\sb2$H$\sb6$ exposure, UV laser energy density, …
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Computer aided floating zone growth of Germanium-Silicon crystals in a resistance heated multi-zone furnace
In this work a technologically state-of-the-art growth furnace <br>-- the FMF-module (Floating Zone Furnace with Rotating Magnetic <br>Field) -- is under development for crystal growth experiments on <br>the International Space Station. By using global simulations and <br>the inverse modeling …
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Regulation of Metabolism in Mycobacteria and Cyanobacteria
… five Synechocystis vapBC operons were made and growth experiments of three of the deletion strains were conducted. Growth experiments identified a reduced growth rate in two of the deletion strains (when compared to the WT strains): ΔvapBCslr1209/1210 and ΔvapBCssl2138/sll1092. Transcriptomic …
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Fabrication, characterization, and wettability analysis of a microstructured hybrid hydrophobic/hydrophilic surface
… and fits well to the experimental data. Experiments suggest a composite interface for droplets resting on the surface due to increasing advancing and receding angles with tower spacing. Future work is anticipated to include droplet nucleation and growth experiments, and quantification of …
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Basics of detached Bridgman growth of Ge1-xSix crystals
Detached growth (or dewetting) refers to the fact that a small gap develops between growing crystal and container wall. Thus, the crystal grows wall-free, a small melt meniscus is formed between the growth interface and the ampoule. The contact-free growth reduces mechanical stress in the growing …
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Study of Metal Tolerance / Accumulation in <em>Festuca arundinacea</em> Schreb. From a Serpentine Site in North Carolina
… soils are usually hostile for plant growth, but some plant species are still able to thrive in these substrates. <em>Festuca arundinacea</em> Schreb. plants were found to thrive on serpentine soils containing high concentrations of Cr and Ni. These plants contained higher …
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Surface Diffusion Kinetics on Amorphous Silicon
… determined by analyzing our own series of HSG growth experiments using chemical vapor deposition. The results of this study are compared to HSG growth data obtained from MBE growth at temperatures below 590°C. The parameters for intrinsic diffusion for both studies are reasonably close. …
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The precipitation of uniform silica particles through the controlled hydrolysis of silicon alkoxides
… are reported and linked to particle growth rates. Seeded growth experiments indicate that reactions between soluble species occur at rates that are independent of the size and number density of the seed particles. Estimates of hydrolyzed alkoxide concentrations based on solution …
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Iron-dependent regulation of gene expression in Corynebacterium pseudotuberculosis
… impact of the availability of iron within the growth environment of numerous bacteria has been widely reported, and an equivalent investigation was conducted to determine whether the same was true of C. pseudotuberculosis. To this end, a novel chemically-defined medium was designed, which …
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Role of SABP2 in Tobacco Non-Host Resistance.
… the similar role in non-host resistance also. Growth experiments and non-host related gene analysis experiments were conducted on tobacco plants using <em>P.s tabaci</em> and <em>P.s. phaseolicola</em> that are host and non-host pathogens on tobacco respectively. Tobacco control plant C3 that …
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Ecology of acidification and recovery in Welsh upland streams
… groups were less affected by low pH. Field experiments tested the effects of acidification on two key processes in stream ecosystems, benthic algal grazing and leaf decomposition. Grazer impacts on algal abundance were generally feeble and largely unaffected by acid stress. Leaf litter …
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Characterizing the higher order metabolism of oral streptococci
… relatively few differences still display diverse growth profiles under the same growth conditions. This diversity cannot be explained by metabolic capabilities given the similarity in metabolism across these closely related species. In this dissertation, I explore this phenomenon by comparing the …
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