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Filtering by: Creator Calhoun, Jeannette A. Remove constraint Creator: Calhoun, Jeannette A. Degree Level Doctoral Remove constraint Degree Level: Doctoral License All rights reserved Remove constraint License: All rights reserved

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  • A Wireless Energy Harvester for Powering Event-driven Internet-of-things Applications and Battery Charging

    Creator:
    Sadagopan, Kamala Raghavan
    Abstract:
    The need for sustainably powering unobtrusive internet-of-things applications has led to an interest in energy harvesting. Particularly, the proliferation of wireless communication and devices in the 2.4 GHz Industrial Scientific c Medical (ISM) band creates an opportunity to leverage commonly used devices for RF powering. This dissertation presents a low-quiescent-power...
    Resource Type:
    Dissertation
    Full Text:
    September 14, 2020. Title: A Wireless Energy Harvester for Powering Event-driven Internet-of-things

  • Posttraumatic Growth, the Physically Active Body, and Self-Compassion

    Creator:
    Mitchell, Erin E.
    Abstract:
    Individuals who have been traumatized have the opportunity to experience posttraumatic growth, conceptualized as positive changes that result from navigating highly challenging life circumstances (Tedeschi & Calhoun, 2004). The current model of posttraumatic growth (Calhoun, Cann, & Tedeschi, 2010) is based solely on cognitive-emotional processing yet by examining the role...
    Resource Type:
    Dissertation
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    life circumstances (Tedeschi & Calhoun, 2004). Posttraumatic growth is modeled as a cognitive

  • Brassicaceae Seed Persistence and Dormancy in the Willamette Valley

    Creator:
    Flick, Gabriel D.
    Abstract:
    Producers in the Willamette Valley of Oregon are interested in growing canola as a rotational crop in grass seed and cereal rotations. Many other Brassicaceae seed crops also are produced within the valley. Concerns of seed persistence and volunteer contamination of Brassicaceae seed crops prompted the investigation of seed persistence...
    Resource Type:
    Dissertation
    Full Text:
    University, and a breeding program was initiated in 1969 (Calhoun et al. 1975). The primary goal was to

  • ALS-inhibitor resistant downy brome (Bromus tectorum L.) biotypes in Oregon : Mechanism of resistance, fitness, and competition

    Creator:
    Park, Kee-Woong
    Abstract:
    Understanding the mechanism of resistance, relative fitness and competitiveness of herbicide resistant biotypes is important to predict population dynamics and to establish resistance management strategies. This study was conducted to determine the level of resistance to acetolactate synthase (ALS) inhibitors and the mechanism of resistance of ALS-inhibitor resistant downy brome...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved Carol A. Milorv-Smith Understanding the mechanism of resistance, relative fitness and

  • Insights into Centennial-Scale Salt Marsh Morphodynamics from the Oregon Coast

    Creator:
    Peck, Erin K.
    Abstract:
    Quantification and comparison of morphological changes over the last ~300 y in Oregon salt marshes provide valuable insights into the tectonic, hydroclimatic, and anthropogenic processes shaping this important intertidal zone. Understanding of the rates and drivers of salt marsh change contextualizes intertidal habitats within the sediment routing system (i.e., source...
    Resource Type:
    Dissertation
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    Coast. Abstract approved: ______________________________________________________ Robert A

  • Addressing sodium reduction and pathogen internalization in non-intact whole muscle beef : evaluation of dehydrated collagen and hydrostatic pressure as impact technologies

    Creator:
    Lowder, Austin Cole
    Abstract:
    These studies focused on maximizing the nutrition and safety of raw whole muscle beef while minimizing quality and shelf-life alteration. The first study used response surface methodology to predict fluid loss from injected beef strip loins and steaks as influenced by levels of salt and sodium phosphates (SP) in the...
    Resource Type:
    Dissertation
    Full Text:
    : ____________________________________________________________________ Christina A. Mireles DeWitt These studies focused on maximizing the nutrition and safety of

  • Determination of fluorochemicals in waste-dominated aqueous systems

    Creator:
    Huset, Carin A.
    Abstract:
    While fluorochemicals have been detected all over the world and in wastewater treatment plants, the effect of wastewater effluent on the receiving waters has not been evaluated. In the first study, the mass flow of fluorochemicals emanating from wastewater treatment plants along the Glatt River in Switzerland was evaluated. The...
    Resource Type:
    Dissertation
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    ABSTRACT OF THE THESIS OF Carin A. Huset for the degree of Doctor of Philosophy in Chemistry presented on

  • Methods to improve the reliability and resiliency of near/sub-threshold digital circuits

    Creator:
    Crop, Joseph A.
    Abstract:
    Energy consumption is one of the primary bottlenecks to both large and small scale modern compute platforms. Reducing the operating voltage of digital circuits to voltages where the supply voltage is near or below the threshold of the transistors has recently gained attention as a method to reduce the energy...
    Resource Type:
    Dissertation
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    Near/Sub-Threshold Digital Circuits AN ABSTRACT OF THE DISSERTATION OF Joseph A. Crop for the

  • Achieving Transparency in Human-Collective Systems

    Creator:
    Roundtree, Karina A.
    Abstract:
    Collective robotic systems are biologically-inspired and exhibit behaviors found in spatial swarms (e.g., fish), colonies (e.g., ants), or a combination of both (e.g., bees). Collective robotic system popularity continues to increase due to their apparent global intelligence and emergent behaviors. Many applications can benefit from the incorporation of collectives, including...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Karina A. Roundtree for

  • Factors related to the economic sustainability of two year chemistry-based technology training programs

    Creator:
    Backus, Bridgid A.
    Abstract:
    Two-year chemistry-based technology training (CBTT) programs in the U.S. are important in the preparation of the professional technical workforce. The purpose of this study was to identify, examine, and analyze factors related to the economic sustainability of CBTT programs. A review of literature identified four clustered categories of 31 sub-factors...
    Resource Type:
    Dissertation
    Full Text:
    ABSTRACT OF THE DISSERTATION OF Bridgid A. Backus for the degree of Doctor of Philosophy in