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Filtering by: Creator Bonell, John Alexander Remove constraint Creator: Bonell, John Alexander Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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  • Influence of expansive soils on structures in the Eugene area

    Creator:
    Bonell, John Alexander
    Abstract:
    Expansive soils in Eugene, Oregon present a problem to residents, consultants, contractors, and the city government. During the years 1977 to 1979, the nature and extent of the problem was identified, including an outline of the local occurrence of expansive soils and possible engineering solutions to the most often encountered...
    Resource Type:
    Masters Thesis
    Full Text:
    area AN ABSTRACT OF THE THESIS OF John Alexander Bonell for the degree of Master of Science in Civil

  • Verifying safe use of a thinner aluminum scattering chamber for fission physics

    Creator:
    Porter, Eben, Jr.
    Abstract:
    This thesis describes calculations done to determine the radiation hazard of the current Prompt Gamma Neutron Activation Analysis (PGNAA) scattering chamber at the Oregon State TRIGA Reactor (OSTR) and compare it to the amount that would be given off by a new thin-walled chamber design. These calculations were completed with...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Alexander Chemey Abstract This thesis describes calculations done to determine the

  • Life-Cycle and Playability Analysis of Natural Turfgrass and Synthetic Infill Playing Surfaces Under Field Conditions

    Creator:
    Daviscourt Brian L.
    Abstract:
    The perception of a long-term cost advantage of synthetic infill turf systems relative to natural grass systems has contributed to a rise in their popularity in the USA. However, few comprehensive cost assessments of natural grass and synthetic infill systems exist. There are also no studies looking at interactions between...
    Resource Type:
    Masters Thesis
    Full Text:
    Conditions Abstract approved: _________________________________________________________ Alexander R

  • Investigating Alternative Irrigation Strategies and Sources for the Cool-Humid Willamette Valley

    Creator:
    Olsen, Conner J.
    Abstract:
    Rising human populations and climate change are putting increasing demands on our already-limited freshwater sources. In response to these concerns, homeowners and municipalities have been encouraged to replace turfgrass – a plant with relatively high irrigation needs – with drought-tolerant plants that do not require frequent irrigation. However, the many...
    Resource Type:
    Masters Thesis
    Full Text:
    Cool-Humid Willamette Valley Abstract approved: Alexander R. Kowalewski Rising

  • Spherical mirror resonators and optical mode selection

    Creator:
    Adrion, Robert Foisy
    Abstract:
    This is a review paper based on recent literature in the areas of spherical mirror resonators and optical mode selection. The Fabry-Perot interferometer with spherical mirrors has been widely used as a laser resonator. The modes of oscillation, diffraction losses and resonance condition are determined for the confocal resonator, i.e....
    Resource Type:
    Masters Thesis

  • Microstrips on gold-doped silicon substrates

    Creator:
    Lai, Cheng-wen
    Abstract:
    The power dissipation of microstrip transmission-line on gold-doped silicon substrates was investigated. The gold-doping was applied to a regular n-type silicon substrate with resistivity of 5 to 10 ohm-cm. Insertion-loss tests were employed to measure the power dissipation of the microstrips. Power dissipation somewhat less than that for intrinsic silicon...
    Resource Type:
    Masters Thesis
    Full Text:
    SUBSTRATES Redacted for PrivacyAbstract approved: G. C. Alexander The power dissipation of microstrip

  • Analysis and synthesis of exponentially tapered, nonuniform transmission line impedance transformers

    Creator:
    David, Frank Kolar
    Abstract:
    The exponentially tapered, nonuniform transmission' line, applied as an impedance transformer, is analyzed and modified. The analysis develops an expression for the input reflection coefficient that has the magnitude and phase as distinct functions. This allows ease in comparing the approximate and exact solutions and in developing the S-parameters for...
    Resource Type:
    Masters Thesis
    Full Text:
    Impedance Transformers Abstract approved: Signet re) (Gerald C. Alexander) The exponentially tapered

  • Efficacy of Cultural Practices for Mitigating the Negative Impacts of Grapevine Red Blotch Virus on Vine Physiology and Fruit Composition in Oregon Pinot Noir

    Creator:
    Copp, Cody R.
    Abstract:
    The recently emerged Grapevine Red Botch Virus (GRBV) impedes proper berry ripening primarily by reducing sugar accumulation and color development in red-fruited Vitis vinifera L. cultivars. To date, there is no recommended management strategy for virus spread or the impacts of the disease beyond removal and replacement of infected vines....
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Alexander D. Levin The recently emerged Grapevine Red Botch Virus (GRBV) impedes

  • Material development for thin-film transistors

    Creator:
    Archila, Kevin Alexander
    Abstract:
    The focus of this thesis is developing materials for thin-film transistors (TFTs). Cu₃SbS₄ is explored as p-channel layer. Cu₃SbS₄ TFTs show p-type, depletion-mode behavior with a small amount of gate-controlled modulation of the channel conductance. This behavior is consistent with Hall measurements indicating a mobility of 17 cm²V⁻¹s⁻¹ and hole...
    Resource Type:
    Masters Thesis
    Full Text:
    OF THE THESIS OF Kevin Alexander Archila for the degree of Master of Science in Electrical and

  • A Free Running Lubrication Comparison of Commonly Used Bar and Chain Oil

    Creator:
    Orawiec, Alexander
    Abstract:
    Chain saws are a common tool used by large logging corporations and family homesteads to manage forests, limb trees and buck lumber. A significant cost of operation is the continuous required supply of bar and chain oil. Consumers and logging corporations desire a lubricant with a high performance to cost...
    Resource Type:
    Masters Thesis
    Full Text:
    . Alexander Orawiec, Author ACKNOWLEDGEMENTS I would like to express my gratitude towards Dr. John