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  • Design of Ion Thruster Optics Simulator and a Neural Network Emulator

    Creator:
    Sable, Shital Dnyandeo
    Abstract:
    The grid geometry plays a vital role in the performance of gridded ion thrusters. It can dramatically impact the erosion rate and thrust. Designers push the limits of electric in-space propulsion by optimizing grid parameters through simulation. At the same time, computational models of plasma physics are intensive. A baseline...
    Resource Type:
    Masters Thesis
    Full Text:
    AFOSR SFFP program. I would like to thank Dr. Belinda Batten, Dr. Matthew Campbell, and Dr. Nick Cabot

  • Utilizing the thermodynamic properties of E85 to increase the specific efficiency of a high specific output single cylinder Formula SAE engine

    Creator:
    Duncan, Derek N.
    Abstract:
    Formula SAE is a collegiate engineering competition that has participants from around the globe. Of the 1000 points available throughout the event, 100 (10%) are dedicated to the fuel efficiency of the student built race cars. Competition rules allow either gasoline or E85, a mix of 85% ethanol and 15%...
    Resource Type:
    Masters Thesis
    Full Text:
    : Utilizing the Thermodynamic Properties of E85 to Increase the Specific Efficiency of a High Specific

  • A methodology for iterative design using physical test data

    Creator:
    Morris, Wesley T.
    Abstract:
    This thesis addresses a common knowledge gap that was identified amongst the Society of Automotive Engineers (SAE) competition design teams at Oregon State University. Students that join the SAE teams at Oregon State University typically do not have experience using physically collected data during a design process. This leads to...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: A Methodology for Iterative Design Using Physical Test Data Abstract approved

  • Advancing Wind Systems Design through Optimization and Improved Modeling

    Creator:
    Miller, Annalise M.
    Abstract:
    Wind energy plays an important and growing role in the US energy profile. While other countries have expanded their wind industries into offshore development, large investment costs have hindered progress in the US offshore market despite the larger and more consistent resource available offshore. In this research, I explore the...
    Resource Type:
    Masters Thesis
    Full Text:
    optimiza- tion algorithm for the offshore wind farm layout problem using a simplified wind case. I then

  • The evolution of practical safety audits in the United States

    Creator:
    Houghton, Tegan Marie
    Abstract:
    This thesis evaluates pre-construction auditing procedures used in the United Kingdom, Australia, and New Zealand in order to help create post-construction auditing procedures for the state of Oregon. It was funded as part of the development of the Oregon Department of Transportation (ODOT) Safety Investigation Manual, and also evaluates content...
    Resource Type:
    Masters Thesis
    Full Text:
    Evolution of Practical Safety Audits in the United States by Tegan Marie Houghton A THESIS

  • Model Predictive Control for Underwater Robots in Ocean Waves

    Creator:
    Fernández, Daniel C.
    Abstract:
    Underwater robots beneath ocean waves can benefit from feedforward control to reduce position error. This thesis proposes a method using Model Predictive Control (MPC) to predict and counteract future disturbances from an ocean wave field. The MPC state estimator employs a Linear Wave Theory (LWT) solver to approximate the component...
    Resource Type:
    Masters Thesis
    Full Text:
    Waves Abstract approved: Geoffrey A. Hollinger Underwater robots beneath ocean waves can benefit from

  • Incorporating and Learning Behavior Constraints for Sequential Decision Making

    Creator:
    Pinto, Jervis
    Abstract:
    Writing a program that performs well in a complex environment is a challenging task. In such problems, a method of deterministic programming combined with reinforcement learning (RL) can be helpful. However, current systems either force developers to encode knowledge in very specific forms (e.g., state-action features), or assume advanced RL...
    Resource Type:
    Dissertation
    Full Text:
    Constraints for Sequential Decision Making Abstract approved: Alan P. Fern Writing a program that performs

  • Dosimetric verification of respiratory gated radiation therapy for tumors involving the lung

    Creator:
    Webb, Lindsey S.
    Abstract:
    As the field of radiation therapy evolves new treatment techniques will be established. An example of an evolving treatment technique is respiratory gated radiation therapy (RGRT). Research and studies have shown that RGRT can be used to account for tumor motion as a result of respiratory motion. With evolving technology...
    Resource Type:
    Masters Thesis
    Full Text:
    Kathryn A. Higley As the field of radiation therapy evolves new treatment techniques will be

  • Impact of access density on number of crashes at commercial roadways

    Creator:
    Yi, Xiang
    Abstract:
    Numerous research efforts have proven the safety benefits of access management. There are several access management techniques, including unsignalized access spacing, signalized intersection spacing, left-turn lanes, right-turn lanes, Two-Way Left-Turn lanes (TWLTLs), nontraversable median, U-turns, interchange access separation distances and so on. This project explores the correlation between access density...
    Resource Type:
    Masters Thesis
    Full Text:
    influence crashes along a commercial road: access density, traffic volume, crash type, vehicle action

  • Wave Energy Converter Array Optimization : Algorithm Development and Investigation of Layout Design Influences

    Creator:
    Sharp, Christopher J.
    Abstract:
    Realizing the vast amount of energy available in ocean waves, an industry has emerged that is progressing towards the deployment of grid–connected wave energy converters. Likely to be deployed in arrays, a challenge to the wave energy industry is maximizing the energy production of such arrays. We have been developing...
    Resource Type:
    Dissertation
    Full Text:
    honor to be your first PhD student. I would also like to thank the rest of my committee, Belinda Batten