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Filtering by: Committee Member Emmingham, W. H. Remove constraint Committee Member: Emmingham, W. H. Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • Numerical simulation of mechanically stabilized earth walls for parametric evaluation of behavior under surcharge loading

    Creator:
    Ambauen, Spencer J.
    Abstract:
    A numerical model, simulating the complex behavior of reinforced soil walls using the finite element method, was developed to evaluate the behavior of a surcharged, geosynthetic-reinforced retaining wall with modular block facing. A nonlinear elastic-plastic constitutive soil material model was calibrated to experimental plane strain test data, while the performance...
    Resource Type:
    Masters Thesis
    Full Text:
    throughout the rest of the research work. I would also like to thank the members of my committee; Dr. H

  • Habitat Use of Female Columbian Black-tailed Deer in Western Oregon

    Creator:
    Schrautemeier, Timothy J.
    Abstract:
    Columbian black-tailed deer (Odocoileus hemionus columbianus) are important economically, ecologically, and culturally as an indigenous species in western Oregon. Oregon Department of Fish and Wildlife (ODFW) observed declines in black-tailed deer populations since the late 1980’s and attributes these declines to reduction in quality and availability of habitat, following the...
    Resource Type:
    Masters Thesis
    Full Text:
    members Dr. DeWaine H. Jackson, Dr. Matthew Betts and Dr. Clinton W. Epps for continual support and

  • Printing 3D Magnetic Composite Structures with Arbitrary Anisotropy using UV-curable Magnetic Ink

    Creator:
    Clay, Garrett
    Abstract:
    Inkjet printing offers a cost effective, highly customizable method for rapid manufacturing of functional devices with minimal material waste. Although this method has been used for a variety of composites, little work has been done in the area of 3D printing magnetic composites. Presented here is a process for inkjet...
    Resource Type:
    Masters Thesis

  • Effect of Imprinting Process on Fracture Behavior of a Zr-based Bulk Metallic Glass

    Creator:
    Li, Bosong
    Abstract:
    Bulk metallic glasses (BMGs) are relatively new amorphous materials that have received much attention in recent years. Rapid cooling methods from the liquid state provides the possibility to bypass crystallization during solidification. Due to the lack of crystal defects such as grain boundaries and dislocations, BMGs can have some special...
    Resource Type:
    Masters Thesis
    Full Text:
    values (KJ) and dimple sizes (w), a linear association between KJ2 and w was constructed. Overall

  • Tactics for enhancing conservation biological control of twospotted spider mites, Tetranychus urticae Koch, in Pacific Northwest hop yards

    Creator:
    Woods, Joanna L.
    Abstract:
    The twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is a worldwide pest of numerous agronomic and horticultural plants. Conservation biological control of this pest can be unreliable due to asynchrony of natural enemies and certain horticultural practices that have a direct or indirect affect on natural enemies and the...
    Resource Type:
    Masters Thesis
    Full Text:
    (B, E, H), respectively, and abundance of motile T. urticae when sulfur fungicide applications

  • Shear reinforcement effects of discrete columns in liquefiable soils

    Creator:
    Rayamajhi, Deepak
    Abstract:
    Discrete columns, such as stone and soil-cement columns, are often used to improve the liquefaction resistance of loose sandy ground. In particular, stone columns are considered to increase resistance potential by densification, drainage, and reinforcement mechanisms. For silty soil, the shear stress reduction resulting from the reinforcing effect of stiffer...
    Resource Type:
    Dissertation
    Full Text:
    , Dr. Armin W. Stuedlein, Dr. Michael H. Scott, Dr. H. Benjamin Mason, and Dr. Michelle C. Odden (GCR

  • Hydrodynamic and Morphologic Controls on Extreme Coastal Total Water Levels Across Regional and Local Scales

    Creator:
    Serafin, Katherine A.
    Abstract:
    Coastal and estuarine flooding and erosion events are usually driven by the cumulative effect of multiple individual processes like waves, streamflow, storm surge, and/or tides. This dissertation focuses on separating the influence of the regional and local-scale geomorphologic and hydrodynamic processes driving variability in the magnitude and impacts of extreme...
    Resource Type:
    Dissertation
    Full Text:
    -tidal residual (H). . . . . . . . . . . . . . . . . . . . . . 93 4.11 The percent of time flooding

  • Temporal Evolution of Submarine Volcanoes and Seamount Trails

    Creator:
    Schnur, Susan R.
    Abstract:
    The spatial distribution and geologic histories of submarine volcanoes provide insight into submarine eruptive behavior, deep earth processes and plate tectonics. This dissertation examines the evolution of individual submarine volcanic edifices as well as linear trails of seamounts at three spatial and temporal scales. In order to understand constructive and...
    Resource Type:
    Dissertation

  • Characterization of the transition to the progamic phase in Zea mays pollen

    Creator:
    Smyth, Johanna C.
    Abstract:
    The transition of mature pollen to the progamic phase represents an important step in the regulation of plant sexual reproduction. The progamic phase encompasses the initiation of pollen tube germination, growth of the pollen tube through the stigma (the silk in maize) and concludes with fertilization of the female gametophyte....
    Resource Type:
    Dissertation
    Full Text:
    Pollen Tube length Reference A ct in o m y ci n D In h ib it s tr an sc ri p ti o n

  • The behavior of economic agents and market performance

    Creator:
    Gokhale, Jayendra
    Abstract:
    This dissertation addresses issues concerning the behavior of firms, which has significant effects on performance. In the first study, we empirically investigate the effect of the reduction in number of firms on price competition in the U.S. macro-brewing industry. The number of macro brewing firms decreased from 766 in 1935...
    Resource Type:
    Dissertation
    Full Text:
    direction to this research. I am indebted to Dr. Wesley W. Wilson for his insightful direction