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  • Improving the Photostability and Recovery of Organic Semiconductors

    Creator:
    Tollefsen, Ryan J.
    Abstract:
    This work aims to broaden use of the organic semiconductor pentacene (Pn) by means of improving its oxidation and photodimerization stability. In particular, we study the photophysical properties of functionalized Pn derivatives with side groups R in amorphous thin film, referred to as Pn-R-F8 when fluorinated. Using the optics experiments...
    Resource Type:
    Honors College Thesis
    Full Text:
    . Additionally, we explore how the average intermolecular spacing of Pn-R-F8 in the host polymer matrix affects

  • Selective Laser Melting of H13 Tool Steel for Rapid Tooling

    Creator:
    Katancik, Michael
    Abstract:
    The current knowledge on the microstructural evolutions and mechanical properties of selective laser melting (SLM) produced H13 tool steel components is limited. This research is focused on optimization of SLM processing parameters for H13 tool steel and investigation of microstructure and mechanical properties of H13 tool steel components after SLM...
    Resource Type:
    Honors College Thesis
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    spacing, and 50 µm layer thickness). Wrought and SLM produced samples underwent tempering at 550, 600

  • Evaluation of ECOSTRESS products for estimation of leaf and grape water stress for Southern Oregon vineyards

    Creator:
    Swafford Steffensen, Collen
    Abstract:
    Accurate estimation of water stress in vineyards could prove vital for optimizing irrigation and grape quality in a changing climate. The ECOsystem Spaceborne Thermal Radiometer Experiment on the Space Station (ECOSTRESS) offers potential to remotely sense vineyard water stress but lacks validation against in-field measurements in vineyards. In this study,...
    Resource Type:
    Honors College Thesis
    Full Text:
    row coordinates later used to find the center point of the sampled block. Vine row spacing and plant

  • Experimental Investigation of Near-Critical Carbon Dioxide in Microchannels for High Flux Cooling Applications

    Creator:
    Travers, Kristen
    Abstract:
    With the continued decrease in size and subsequent increase in power of computer processors, thermal management in electronics is becoming more important than ever before. The chip heat densities are reaching new peaks (> 100 W cm-2) that current cooling methods are not able to keep up with. However, some...
    Resource Type:
    Honors College Thesis
    Full Text:
    ) has the potential to yield lower heat-sink temperatures at very high heat fluxes (> 200 W cm-2) with

  • Red Raspberry Production Cost Comparison in Oregon and Chile

    Creator:
    McGuire, Madilynne J.
    Abstract:
    Red raspberry markets in both Chile and Oregon are affected by factors in each other‟s production processes. As seen in the late 1990‟s changes in pricing and supply can hinder the competitive edge of markets, pushing producers into economic hardship. Thus, the need to know the competition‟s methods is presented....
    Resource Type:
    Honors College Thesis
    Full Text:
    . ..................................................................... 39 Appendix C. Estimated cost of each operation with power-unit for a 10' between row spacing

  • Effect of Reaction Parameters on the Catalytic Oxidation of Poplar Lignin

    Creator:
    Lu, Lin
    Abstract:
    Nowadays, woody biomass is becoming increasingly significant because of its renewability and biodegradability. Lots of opportunities have been found to use excessive biological resources to derive products as diverse as fuels, heat, electricity, chemicals, food, clothing, paper, and much more. As such, biomass plays an important role in meeting demands...
    Resource Type:
    Honors College Thesis
    Full Text:
    adjustment and solid washing have significant effects on the yield of oxidized lignin

  • Haunted by Trauma: A Novel

    Creator:
    Fox, Amanda
    Abstract:
    My thesis is a novel about mental illness. It follows the stories of four different women who all suffer from mental or emotional disorders. My novel explores the dynamics of relationships, trauma, mental illness, and sexuality. I work to create purposeful ambiguity in my novel between reality and the manifestations...
    Resource Type:
    Honors College Thesis

  • A fabrication study of surface acoustic wave devices for magnetic field detection

    Creator:
    Chin, Matthew L.
    Abstract:
    Surface acoustic wave (SAW) sensors are versatile devices that can be configured to sense a variety of measurands such as temperature and pressure. The potential use of surface acoustic wave devices for magnetic field detection is explored in this study. Compared to current magnetic field sensors, a sensor based on...
    Resource Type:
    Honors College Thesis
    Full Text:
    .................................................. 6 Figure 2 – Interdigital transducer (IDT) spacing definition

  • Thermal conductivity measurements of amorphous thin films on silicon via the 3ω method

    Creator:
    Wiedle, River Alan
    Abstract:
    Thermal transport properties of a material are often difficult to measure, especially for thin films, but they are important for materials that have applications in modern devices, such as nano-scale electronics, thermoelectrics, and thermally resistive coatings. In this thesis, we describe an apparatus developed to measure the thermal conductivity of...
    Resource Type:
    Honors College Thesis
    Full Text:
    the data (black line) to the 2D heater model (red line) yields a measured thermal conductivity of

  • Describing Tsunami Inundation and Debris Motion using Optical Measurement Methods in a Large-Scale Wave Basin

    Creator:
    Rueben, Matthew Robert
    Abstract:
    This thesis consists of two papers in manuscript format. The first paper presents optical measurements of tsunami inundation through an urban waterfront in a laboratory wave basin. The physical model was constructed at 1:50 scale and was an idealization of the town of Seaside, Oregon. The paper presents an analysis...
    Resource Type:
    Honors College Thesis
    Full Text:
    the imaged surface, a vertical time stack would yield an image with horizontal bands. Fig 6 (left