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Filtering by: Creator Sowers, Todd A. Remove constraint Creator: Sowers, Todd A. Committee Member Palmer, Todd Remove constraint Committee Member: Palmer, Todd

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  • Estimation of the setup accuracy of a surface image-guided stereotactic positioning system

    Creator:
    Meng, Lu Zheng
    Abstract:
    Purpose: Stereotactic radiation therapy and stereotactic radiosurgery deliver radiation precisely to tumors, using special equipment to position and demobilize patients. The VisionRT system, with its component AlignRT, is a non-invasive stereotactic positioning and tracking system that uses cameras to capture infra-red images of patients, and process these images, to obtain...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on March 14, 2011. Title: Estimation of the Setup Accuracy of a Surface Image-guided

  • Classification Modeling of Nuclear Power Plant Outage Severities with Complement Naïve Bayes and Bidirectional Encoder Representations from Transformers

    Creator:
    Castillo, Michael A.
    Abstract:
    Low-level nuclear power plant outages in the United States can lead to unanticipated costs, potentially compromising the expected operation lifetime of the plant. Nuclear power plants are complex systems of interfacing components and highly regulated processes. This inherent complexity makes predicting outages from system dependencies very challenging. When outages do...
    Resource Type:
    Masters Thesis
    Full Text:
    Michael A. Castillo for the degree of Master of Science in Nuclear Engineering presented on December 6

  • Oxidative desulfurization of dibenzothiophene with tert-butyl hydro peroxide in a photochemical micro-reactor

    Creator:
    Hebert, Eilleen M.
    Abstract:
    Sulfur content in fuels is an increasingly critical environmental issue. Hydrodesulfurization removes sulfur from hydrocarbons; however, further desulfurization is necessary in fuels. New methods are required. In this study, micro-scaled single phase oxidative desulfurization is explored. An ultraviolet light-assisted micro-reactor is introduced for desulfurization of dibenzothiophene. Dibenzothiophene is mixed with...
    Resource Type:
    Masters Thesis
    Full Text:
    Peroxide in a Photochemical Micro-Reactor. Abstract approved: Goran N. Jovanovic Alexandre F

  • Simulating Effects of Genetic Tree Improvement on Growth and Yield of Coastal Douglas-fir

    Creator:
    Joo, Sukhyun
    Abstract:
    Estimating volume gains in genetically improved stands at rotation age is challenging because first-generation progeny tests in Douglas-fir were typically established to measure the relative growth performance of individual trees from open-pollinated parent trees. The overall goal of this dissertation research was to improve growth simulation of genetically improved Douglas-fir...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ Douglas A. Maguire

  • Dose to the female breast from nuclear medicine and diagnostic radiology

    Creator:
    Patel, Aarti
    Abstract:
    There has been increased concern about radiation dose to the female breasts, with approximately 200,000 new breast cancers being diagnosed each year in the United States. The unprecedented increase in the use of radiologic exams on younger women has also raised some additional concerns about how procedures are performed. The...
    Resource Type:
    Masters Thesis
    Full Text:
    , mammography and computed tomography and provide a comparison amongst these three modalities if any

  • A CFD Analysis of a Single Channel in the Mars Hopper Engine

    Creator:
    Koll, Christopher J.
    Abstract:
    The Mars Hopper is an alternative extraterrestrial vehicle for the collection of samples from the Martian surface. This thesis studied the engine of the Mars Hopper to assess the validity of the current planned launch cycle according to current parameters. To do this, the engine was simplified to an average...
    Resource Type:
    Masters Thesis
    Full Text:
    Title: A CFD Analysis of a Single Channel in the Mars Hopper Engine Abstract approved: Andrew

  • Advancements Toward the Simulation of Steel Structures in Fire Using OpenSees

    Creator:
    Gordon, James A.
    Abstract:
    Since the collapse of World Trade Center building number seven (WTC7), significant research has been done to understand the behavior of steel structures in fire and enable engineers to account for the behavior of steel framing systems exposed to fire during design. Despite these efforts, there are still significant barriers...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF James A. Gordon

  • Modeling and analysis of a heat transport transient test facility for space nuclear systems

    Creator:
    Wheeler, Adam
    Abstract:
    The purpose of this thesis is to design a robust test facility for a small space nuclear power system and model its physical behavior under different scenarios. The test facility will be used to simulate a 1-10kWe nuclear reactor, its electrical generation, and heat removal capabilities. This simulator will be...
    Resource Type:
    Masters Thesis
    Full Text:
    Modeling and Analysis of a Heat Transport Transient Test

  • A comparison of measured and simulated exposure rates near tungsten-based medical transport pigs

    Creator:
    Newman, Errol D. I.
    Abstract:
    A lack of data concerning tungsten-based medical shields, specifically unit dose transport pigs, may lead to unnecessary exposure to medical personnel. Available research comparing lead to sintered tungsten shows that tungsten is approximately 1.5 - 10.0 times more effective as a radiation shield. However, this research lacks high-energy vs. low-energy...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on _June 7, 2007_ Title: A Comparison of Measured and Simulated Exposure Rates Near Tungsten

  • Simulating Soot Formation and Growth using a Parallel Coupled Monte Carlo Method

    Creator:
    Peters, Jordan
    Abstract:
    Small hydrocarbon particles such as soot and soot precursors pose a serious threat to human health and Earth's climate. Understanding the mechanisms by which soot particles form and grow is the first step to reducing the prevalence of these particles. Computational simulations are used to investigate combusting systems which are...
    Resource Type:
    Masters Thesis
    Full Text:
    : Simulating Soot Formation and Growth using a Parallel Coupled Monte Carlo Method Abstract approved: Kyle E