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  • In vivo assessment of nanomaterial-induced toxicity using embryonic zebrafish

    Creator:
    Usenko, Crystal Y.
    Abstract:
    Due to their unique physical, chemical, and magnetic properties, nanomaterials have great potential for industrial development. There is a pressing need to develop rapid whole animal-based testing assays to assess the potential toxicity of engineered nanomaterials. To meet this challenge the embryonic zebrafish model was employed to determine the toxicity...
    Resource Type:
    Masters Thesis
    Full Text:
    THESIS OF Crystal Y. Usenko for the degree of Master of Science in Toxicology presented on May 29

  • Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

    Creator:
    Meehan, Nathan Andrew
    Abstract:
    Growing societal demand for forest products is pressuring managers to increase productivity from a finite land area, and it is expected that increased supply will come mostly from expansion of intensively managed stands. The USDA Forest Service and numerous collaborators created the Long-Term Soil Productivity (LTSP) network of research sites...
    Resource Type:
    Masters Thesis
    Full Text:
    Forest Engineering presented on March 17, 2006. Title: Response of Needle-Litter Decomposition and Soil

  • Thin-film transistors with amorphous oxide channel layers

    Creator:
    Grover, Manan S.
    Abstract:
    In recent years, a new class of high-performance thin-film transistors (TFTs) has emerged comprising amorphous oxide channel materials composed of heavy-metal cations (HMCs) with (n-1)d¹⁰ns⁰ (n ≥ 4, where 'n' refers to the row of the periodic table) electronic configuration. This thesis is devoted to the fabrication and characterization of...
    Resource Type:
    Masters Thesis

  • The Protection of Groundwater - Specifically Oil and Gas Contamination

    Creator:
    Stash, Karen M.
    Abstract:
    Groundwater is a vital resource and efforts must be made to protect its quality. In certain areas, its quality has been threatened by the introduction of oil and gasoline, many times originating from underground storage tanks. Massachusetts has directly reacted to this concern about groundwater quality by promulating a Massachusetts...
    Resource Type:
    Capstone Project
    Full Text:
    requirements for the degree of Masters of Science Completed November 17, 1988 Commencement June 1989

  • Oxidative desulfurization of dibenzothiophene with tert-butyl hydro peroxide in a photochemical micro-reactor

    Creator:
    Hebert, Eilleen M.
    Abstract:
    Sulfur content in fuels is an increasingly critical environmental issue. Hydrodesulfurization removes sulfur from hydrocarbons; however, further desulfurization is necessary in fuels. New methods are required. In this study, micro-scaled single phase oxidative desulfurization is explored. An ultraviolet light-assisted micro-reactor is introduced for desulfurization of dibenzothiophene. Dibenzothiophene is mixed with...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on August 17, 2007. Title: Oxidative Desulfurization of Dibenzothiophene with Tert-Butyl Hydro

  • Chemical modification of wood : dimensional stabilization of viscoelastic thermal compressed wood

    Creator:
    Gabrielli, Christopher P.
    Abstract:
    The tendency of wood to shrink and swell with changing moisture content remains as one of the most significant challenges to using wood in its many applications. Viscoelastic Thermal Compression (VTC) has been shown to significantly increase the density, strength and stiffness of wood. However, dimensional stability is still a...
    Resource Type:
    Masters Thesis
    Full Text:
    Wood Science presented on March 17, 2008. Title: Chemical Modification of Wood: Dimensional

  • A study of opposing mixed convection in the GRTS and in downward pipe flows using the FLUENT CFD code

    Creator:
    Jackson, R. Brian
    Abstract:
    Downward flow opposing mixed convection conditions have been studied using the FLUENT CFD code. This work was comprised of two primary objectives. The first was to study core channel flow reversal susceptibility in the Gas Reactor Test Section (GRTS) at low flow conditions. The second objective was the development of...
    Resource Type:
    Masters Thesis
    Full Text:
    Jackson for the degree of Master of Science in Nuclear Engineering presented on March 17, 2008

  • Deformation imaging

    Creator:
    Margiocco, Marco L.
    Abstract:
    Recent developments in the field of clinical echocardiography allow the ultrasonographer to objectively quantify both regional and global myocardial function. Regional deformation (Strain) and deformation rate (Strain Rate) are novel indices of ventricular function that can be estimated non-invasively by ultrasonographic interrogation of the heart. Deformation Imaging (DI)represents a family...
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Science in Veterinary Science presented on December 17, 2007. Title: Deformation Imaging

  • Commissioning of ADAC Pinnacle for IMRT utilizing solid compensators

    Creator:
    Brumley, Willis E.
    Abstract:
    Use of solid compensators is a very effective means of implementing IMRT on any linear accelerator. The standard practice has been IMRT delivery using accelerators equipped with multi-leaf collimators (MLC’s). Truth is the addition of MLC’s to an accelerator is quite expensive. Previous studies have shown solid compensators to have...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on March 17, 2008. Title: Commissioning of ADAC Pinnacle for IMRT Utilizing Solid Compensators

  • Sustainability of a forest preservation project in India : the case of the Kalakad Mundanthurai Tiger Reserve

    Creator:
    Balasubramanian, Maniselvan
    Abstract:
    Numerous development projects are implemented in developing countries to attain economic and ecological development. However, in most cases, the encouraging results observed during the implementation phase terminated with the project period, raising concerns on these projects' sustainability after the project period has ended. This study focuses on this sustainability issue...
    Resource Type:
    Masters Thesis
    Full Text:
    Balasubramanian for the degree of Master of Science in Environmental Science presented on August 17, 2007