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  • Chloride Binding of Portland Limestone Cement containing Supplementary Cementitious Materials

    Creator:
    Then, Nathalene WY
    Abstract:
    Chloride binding in Portland limestone cements (PLC) can be attributed to the chemical reaction between chloride ions and carboaluminate phases to form Friedel’s salt and the physical interaction between chloride ions and calcium-silicate-hydrates (C-S-H). This thesis examines the chloride binding of mortar samples containing varying amounts of limestone, fly ash,...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ________________________________ ___________________________ W. Jason Weiss

  • Learning-based Techniques for Fast and Robust Motion Planning

    Creator:
    Chow, Scott
    Abstract:
    Motion planning is a cornerstone of autonomous robots, enabling robots to safely and efficiently perform tasks such as package delivery, infrastructure inspection, and manipulation. However, as the field of robotics matures, robotic systems are being developed that (1) are challenging to analytically model, (2) require computationally expensive model-based controllers, and...
    Resource Type:
    Dissertation
    Full Text:
    Techniques for Fast and Robust Motion Planning Abstract approved: Geoffrey A. Hollinger Motion planning is

  • The Impact of Freeze-Thaw Cycles to the Physical and Biogeochemical Properties of Alaskan Permafrost Soils

    Creator:
    Rooney, Erin C.
    Abstract:
    Arctic warming is exposing thawing permafrost to repeated freeze-thaw, a disruptive process that can alter soil biogeochemistry and physical structure. To investigate the impact of permafrost exposure to freeze-thaw, soil response was tested across three scales: 2.5 cm³ aggregates, a forested hillslope, and two sites at contrasting latitudes. XCT imaging...
    Resource Type:
    Dissertation
    Full Text:
    warming is exposing thawing permafrost to repeated freeze-thaw, a disruptive process that can alter soil

  • Living with earthquakes in the Pacific Northwest

    Creator:
    Yeats, Robert S.
    Abstract:
    In this expanded new edition of Living with Earthquakes, Robert Yeats, a leading authority on earthquakes in California and the Pacific Northwest, describes the threat posed by the Cascadia Subduction Zone, a great earthquake fault which runs for hundreds of miles offshore from British Columbia to northern California. New research...
    Resource Type:
    Book
    Full Text:
    : A van crushed by bricks falling from a building across from the Exhibition Center in Seattle is

  • Applications in plant breeding : end-use quality, tissue culture propagation systems, and outreach for K-12 education

    Creator:
    Halstead, Margaret A.
    Abstract:
    This thesis consists of five chapters: a general introduction, two manuscripts, a collection of published lesson plans, and a general conclusion. The works collected herein are united by the common theme of practical applications in plant breeding. The first manuscript reports a study performed on five malting barley lines grown...
    Resource Type:
    Masters Thesis
    Full Text:
    . Carrijo This thesis consists of five chapters: a general introduction, two manuscripts, a

  • Assessing Exposures and Simplifying Complex Mixtures of SVOCs for Hazard Characterization using Alternative Model Systems

    Creator:
    Rivera, Brianna N.
    Abstract:
    Throughout their lifetime individuals are exposed to complex mixtures of chemicals. The study of chemical mixtures is an internationally recognized research priority, but seemingly complex challenge. To reduce the intricacy of studying mixtures, researchers have identified different prioritization methods based on exposure or the toxicity of chemicals. However, understanding the...
    Resource Type:
    Dissertation
    Full Text:
    Susan C. Tilton & Kim A. Anderson Throughout their lifetime individuals are exposed to complex

  • 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:
    composition and provide a lower-cost alternative to vine replacement while producing fruit of an acceptable

  • A Corpus Linguistic Study of Grief

    Creator:
    Ramakrishna, Nandini J.
    Abstract:
    The counseling profession has historically adopted a one-size-fits-all approach toward addressing bereavement. However, there is an emerging paradigm-shift in grief therapy that has been enabled by recent research that differentiates, for example, between types of grief and styles of grieving. This research project contributes to this nuanced approach to grief...
    Resource Type:
    Dissertation
    Full Text:
    a corpus (Phillips, 1985). #Lancsbox 6.0 is a corpus analysis software program possessing a

  • Curating a consumption ideology : platformization and gun influencers on Instagram

    Creator:
    Drenten, Jenna, Gurrieri, Lauren, Huff, Aimee Dinnín, and Barnhart, Michelle
    Abstract:
    This study explores how a platform enables social media influencers to promulgate a consumption ideology. We show how gun influencers, or “gunfluencers,” use Instagram to link products, activities, and meanings to Second Amendment ideology—a gun-centric belief system in the United States colloquially known as “2A ideology.” Through a qualitative study...
    Resource Type:
    Article
    Full Text:
    Barnhart (2023), “Curating a Consumption Ideology: Platformization and Gun Influencers on Instagram

  • The great fires : Indian burning and catastrophic forest fire patterns of the Oregon Coast Range, 1491-1951

    Creator:
    Zybach, Bob
    Abstract:
    The purpose of this study is to examine the relationship between land management practices of Indian communities prior to contact with Europeans and the nature or character of subsequent catastrophic forest fires in the Oregon Coast Range. The research focus is spatial and temporal patterns of Indian burning across the...
    Resource Type:
    Dissertation
    Full Text:
    in even-aged stands, usually dominated by a single species, throughout all river basins of the