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Filtering by: Creator Peacock, Derek N. Remove constraint Creator: Peacock, Derek N. Degree Name Honors Bachelor of Science (H.B.S.) Remove constraint Degree Name: Honors Bachelor of Science (H.B.S.)

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  • The production of dissolved organic carbon (DOC) over time with change in substrate type, temperature, and mineral soil inclusion

    Creator:
    Stanton, Alexandria H.
    Abstract:
    Dissolved Organic Carbon (DOC) originates from organic matter. Climate and vegetation have been found to alter DOC production. The goal of this study was to determine where the differences in DOC production originate from. Mineral soil and substrate including maple leaves, needles, old wood, and sticks were collected from the...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Derek Pierson, Committee Member, representing Crop and Soil Sciences

  • Dissolved Organic Carbon Production and Flux from Long Term Litter Manipulations in a Pacific Northwest Old-Growth Forest

    Creator:
    Evans, Lucas R.
    Abstract:
    Dissolved organic carbon (DOC) flux is an important mechanism to convey soil carbon (C) from aboveground organic debris (litter) to deeper soil horizons and can influence the formation of stable soil organic carbon (SOC) compounds. Aboveground litter quantity and quality was manipulated for 20-years in an old-growth Douglas fir forest...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Derek Pierson, Committee Member, representing Crop and Soil Science

  • Prototyping of Thermoelectric Energy Harvesting Circuitry for IoT Devices

    Creator:
    Webb, Derek
    Abstract:
    Due to the advancement of incredibly low power microcontrollers and small form factor integrated circuits, energy harvesting can be considered as an alternative, low power source for remote ocean sensing and measurements. To demonstrate the effectiveness of harvesting thermoelectric energy contained in the temperature differential between ocean surface water and...
    Resource Type:
    Honors College Thesis
    Full Text:
    IoT Devices By Derek Webb A THESIS submitted to Oregon State University Honors College in

  • Development of Miniature Wire pH Sensors for Real-Time Monitoring of the Streptococcus Mutans Biofilm

    Creator:
    Wong, Derek C.
    Abstract:
    The interface between a biofilm and the underlying substrate to which it is attached is challenging to study. Currently, available methods of studying this microenvironment have not been able to record data in real-time over a time period in the range of days. To address this challenge, we report the...
    Resource Type:
    Honors College Thesis
    Full Text:
    Real-Time Monitoring of the Streptococcus Mutans Biofilm by Derek Wong

  • Investigation of MoS2 with Ambient Pressure X-ray Photoelectron Spectroscopy

    Creator:
    Dardzinski, Derek P.
    Abstract:
    Molybdenum disulfide (MoS2) has potential applications as a low-cost catalyst for the hydrogen evolution reaction (HER). Defects on MoS2, such as edge sites and sulfur vacancies, are known to be the major active sites for HER. Controlling the formation of these defects allows for the enhancement in reactivity of MoS2...
    Resource Type:
    Honors College Thesis
    Full Text:
    by Derek Dardzinski A THESIS submitted to Oregon State University Honors College in partial

  • Restoring and Updating the Micralyne μTK

    Creator:
    Wong, Derek H.
    Abstract:
    The Micralyne microfluidic toolkit (μTK) was an instrument built by Micralyne in the early 2000’s. It was built for electrophoresis and has a sensitive laser-induced fluorescence detection system. The updates to the system were upgrading the control GUI from running in LabVIEW 5 (Windows XP, 2000) to LabVIEW 2012 (Windows...
    Resource Type:
    Honors College Thesis
    Full Text:
    Restoring and Updating the Micralyne μTK by Derek

  • Land Use Impacts on Water Quality in Oak Creek Watershed

    Creator:
    Johnson, Keira R.
    Abstract:
    Understanding the relationships between land use, water quality, and groundwater is crucial for ecological, economic, and water management decisions. This study aims to provide a comprehensive analysis of the land use activities and hydrologic processes influencing the water quality of Oak Creek watershed. Objectives of this study were: 1) to...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Derek Godwin, Committee Member, representing Biological and Ecological Engineering

  • A Computational Fluid Dynamics Investigation of Hemolysis Potential in a Microfluidic Hemoperfusion Device Designed for Use in Sepsis Treatment

    Creator:
    Myers, Karl N.
    Abstract:
    The potential of red blood cell (RBC) and platelet damage was studied for a novel microfluidic hemoperfusion device currently in development at Oregon State University for use in treating sepsis. COMSOL 4.4's computational fluid dynamics (CFD) module was used to examine shear rate profiles in laminar, Newtonian blood flow throughout...
    Resource Type:
    Honors College Thesis
    Full Text:
    Designed for Use in Sepsis Treatment by Karl N. Myers A PROJECT submitted to Oregon

  • Lionfish Prey Preference between Native Basslets

    Creator:
    Anderson, Emily R.
    Abstract:
    The lionfish (Pterois volitans) is a successful invasive predator with large impacts on native fish populations in the western Atlantic. Lionfish predation may affect competition between prey species so it is important to understand whether lionfish display preferences between prey species. I investigated lionfish and native graysby grouper prey preference...
    Resource Type:
    Honors College Thesis
    Full Text:
    (A) two different basslet species (n=16 lionfish) and (B) two basslets differing in size (n=17

  • Design of a Green Microbial Fuel Cell for Soft Robotics

    Creator:
    Van Volkenburg, Tessa
    Abstract:
    This work introduces the design and fabrication of a green-sourced and mostly biodegradable microbial fuel cell for use in soft robotic applications from environmental sensing to wastewater remediation. Theorized from other biodegradable fuel cells, this prototype achieved maximum power densities of 4.0 x 10−4 W/m2 in the single-chambered design and...
    Resource Type:
    Honors College Thesis
    Full Text:
    . W = EemfQ = nF (3) where n is the number of electrons exchanged in the reaction per mol, and F is