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Filtering by: Contributor Davidson, T. P. Remove constraint Contributor: Davidson, T. P. Non-Academic Affiliation Oregon State University. Honors College Remove constraint Non-Academic Affiliation: Oregon State University. Honors College

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  • Evaluation of Current Dairy Heifer Growth Models

    Creator:
    Zaworski, Erica M.
    Abstract:
    Growth models developed by Pennsylvania State University (Penn State) extension services for Holstein and Jersey heifer height and weight were evaluated using OSU dairy herd heifer data. The purpose of this study was to determine the ability of the models to predict heights and weights of heifers in the OSU...
    Resource Type:
    Honors College Thesis
    Full Text:
    height and weight of both breeds. Table 3 Residuals T-test P-value Holstein Wt. -7.86302

  • Automated Trunk Diameter Measurement

    Creator:
    Sankari, Pico
    Abstract:
    This thesis describes an automated method to estimate tree trunk width in a commer-cial apple orchard. Trunk cross sectional area, which is an important consideration with regards to nutrient uptake, is a feature being integrated in a decision support system for precision Nitrogen management. The data used to generate the...
    Resource Type:
    Honors College Thesis
    Full Text:
    : Automated Trunk Diameter Measurement Abstract approved: Joe Davidson This thesis describes an automated

  • Design of 3D-Printed Soft Pneunet Actuator for Robotic Fruit Harvesting

    Creator:
    Wilhelm, Lissette J. H.
    Abstract:
    This work details the development of 3D printed TPU pneunet actuators for use in apple picking for agricultural soft robotics. These actuators increase the force capabilities of soft pneunets and simplify manufacturing. Grippers based on these actuators are ideal for apple picking because they are compliant, yet exert sufficient force...
    Resource Type:
    Honors College Thesis
    Full Text:
    Abstract approved: Joe Davidson This work details the development of 3D printed Thermoplastic Urethane

  • Implementation of Distributed Localized Communications

    Creator:
    Snyder, Thomas
    Abstract:
    Artificial collectives are useful for accomplishing tasks that require teamwork from multiple simple robots. Multiple robot and collective testbeds have been developed, yet none stay committed to leverage the local interactions, group size, and imperfect information assumptions that strengthen biological collectives. A review of the collective and multiple robot literature,...
    Resource Type:
    Honors College Thesis
    Full Text:
    , representing Mechanical, Industrial, and Manufacturing Engineering Joseph Davidson, Committee Member

  • Computer Vision Model Selection For Real-Time Tracking of Apples

    Creator:
    Bloch, Peter J.
    Abstract:
    This paper presents a method of implementing real-time apple detection for closed-loop control to approach apples for grabbing. The approach is to train two known real-time object detection networks–the Faster R-CNN and YOLOv5–on a novel dataset to verify that it is possible to achieve maximum average precision (mAP) above 50\%...
    Resource Type:
    Honors College Thesis
    Full Text:
    Engineering Joseph Davidson, Committee Member, representing Mechanical, Industrial & Manufacturing

  • Comparing Delay and Reflected Inertia for an Actuated Spring Loaded Inverted Pendulum Model

    Creator:
    Reinschmidt, Kurt W.
    Abstract:
    Legged robots, while advancing quickly, have far to go before they can recover from major disturbances safely and consistently. Reflected inertia, which affects how quickly the actuators can physically respond to an environmental disturbance, and delay, which describes the time necessary for the controller to sense, re-plan, and respond to...
    Resource Type:
    Honors College Thesis
    Full Text:
    if any patterns arose in the data. References [1] T. Apgar, P. Clary, K. Green, A. Fern, and J

  • Peptide Non-planarity Regained

    Creator:
    Biel, Justin T.
    Abstract:
    The planar peptide model has guided our understanding and interpretation of protein crystal structures since its origin in the 1950s. It is well understood that deviations from this model occur, but the majority of peptides are planar, as measured by the standard omega torsion angle. Here, we report the first...
    Resource Type:
    Honors College Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Justin T

  • The role of CYP2E1 and CYP4A in the development of non-alcoholic steatohepatitis

    Creator:
    Hawkins, Jenna M.
    Abstract:
    Non-alcoholic Steatohepatitis (NASH) is an emerging form of liver disease associated with obesity, type II diabetes and dyslipidemia. As the prevalence of these metabolic conditions increases, so too has the occurrence of NASH in all sectors of the population. The pathology of this disease is similar to its alcoholic form,...
    Resource Type:
    Honors College Thesis
    Full Text:
    according to the t-test statistical analysis with a p-value of 0.299. The samples within each group

  • Wing Flutter Suppression via Distributed Electric Propulsion

    Creator:
    Bamberger, Joshua
    Abstract:
    This research aims to demonstrate the viability of actively controlled distributed-electric propulsion as a method to postpone flutter in high aspect-ratio elastic wings. A semi-wing on a spring mount with two propellers powered by electric motors, mounted at alternate pitch angles relative to the chord line, was used as the...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Joseph Davidson, Committee Member, representing Mechanical, Industrial and Manufacturing

  • Characterization of Fer1L6 in the mouse C2C12 cell line

    Creator:
    Huegel, Jacob T.
    Abstract:
    Fer1L6 is an uncharacterized member of the ferlin family of proteins, a group of large, calcium sensitive proteins with emerging roles in vesicle trafficking and various disease states. The presence of Fer1L6 has been identified within the C2C12 cell line of mouse skeletal muscle. To determine the protein’s subcellular location...
    Resource Type:
    Honors College Thesis
    Full Text:
    ., Bahloul, A., Perfettini, I., Le Gall, M., Rostaing, P., Hamard, G., Triller, A., Avan, P., Moser, T