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  • Comparison and Validation of Hydrodynamic Theories for Wave Energy Converter Modelling

    Creator:
    Leary, Matthew M.
    Abstract:
    A wide variety of hydrodynamic theories are utilized to approximate a Wave Energy Converter’s (WEC) equation of motion. Numerous theories have been refined in order to improve numerical approximations of WEC dynamics. When incorporating refined hydrodynamic theories into numerical models, there are distinct impacts on WEC rigid body motions, cable...
    Resource Type:
    Masters Thesis
    Full Text:
    for the degree of Master of Science in Civil Engineering presented on December 1, 2021. Title

  • Hydrodynamic Modeling of Submerged Wave Energy Converters: Power Take-Off Mooring Configuration Effect on Power Performance

    Creator:
    Meek, Moira H.
    Abstract:
    Wave energy converters (WECs) show promising potential to significantly contribute to global renewable energy goals. Numerous WEC designs have been proposed and investigated, but wave energy conversion technology has yet to reach convergence in the same way wind or solar has. Of the designs currently in existence, surface-piercing WECs are...
    Resource Type:
    Masters Thesis
    Full Text:
    Moira H. Meek for the degree of Master of Science in Civil Engineering presented on June 08, 2023 Title

  • Hydrodynamic characterization of floating offshore wind turbines : an experimental and numerical multi-degree of freedom analysis

    Creator:
    Gadasi, Jonah B.
    Abstract:
    Wind energy has become a crucial resource in sustainably meeting increasing global energy demands. Recently, offshore wind energy has been gaining traction due to its higher gross resource and larger unclaimed real-estate relative to its onshore counterpart. Floating offshore wind turbines (FOWTs) are increasingly popular, particularly designs with semisubmersible platforms....
    Resource Type:
    Masters Thesis
    Full Text:
    Gadasi for the degree of Master of Science in Civil Engineering presented on March 24, 2023. Title

  • Wave Resource Assessments: Spacio-Temporal Effect of Wave Energy Converter Scale and Blue Economy Opportunities

    Creator:
    Dunkle, Gabrielle R.
    Abstract:
    Wave energy has the potential to power large and small factions of economies around the world alike. Current methods for determining the amount of wave energy resource available to wave energy converter (WEC) devices entail capturing the look of the sea state at large by presenting characteristic wave heights, periods,...
    Resource Type:
    Masters Thesis
    Full Text:
    the degree of Master of Science in Civil Engineering presented on September 2, 2021 Title: Wave

  • The Application of Machine Learning Techniques on Marine Science Models

    Creator:
    Ellenson, Ashley
    Abstract:
    A variety of stakeholders require information about marine systems. In the open ocean, pilots of marine vessels require knowledge about environmental conditions for safe passage and route planning. On the coastline, communities rely on information about nearshore dynamics to increase safety from coastal hazards such as nearshore pollutants, coastal erosion,...
    Resource Type:
    Dissertation
    Full Text:
    Application of Machine Learning Techniques to Marine Science Models Abstract approved: Gregory Wilson A

  • Sustainability of Concrete in the Pacific Northwest

    Creator:
    Chaimov, Hilary
    Abstract:
    Reducing the CO2 emitted by the production of cement can greatly reduce the carbon emissions attributable to the built industry. By specifying concrete mixes with lower global warming potentials (GWPs), structural engineers can reduce the carbon emissions of concrete used in the built industry. This thesis uses a cradle-to-gate life...
    Resource Type:
    Honors College Thesis
    Full Text:
    1 Sustainability of Concrete in the Pacific Northwest

  • Wave-by-wave Forecasting of Sea Surface Elevation for WEC Applications Utilizing NARX Neural Networks

    Creator:
    Gillespie, Alice
    Abstract:
    Forecasting of ocean waves over a short duration on the order of tens of seconds was approached with the optimization of wave energy conversion in mind. This study outlines the development of an artificial neural network model, specifically the Nonlinear Autoregressive Network with Exogenous Input (NARX), to predict a wave-by-wave...
    Resource Type:
    Masters Thesis
    Full Text:
    OF Alice Gillespie for the degree of Master of Science in Civil Engineering presented on

  • Consolidation characteristics of calcareous deep sea-floor sediments from the Panama Basin

    Creator:
    Kao, Yeoung Ting
    Abstract:
    Calcareous sediments containing a large percentage of foraminiferal microskeletal tests were taken from sites in the Panama Basin and subjected to an investigation to determine the consolidation characteristics of this type of soil. The consolidation-stress curves and the time rate of consolidation curves in particular were investigated in this study....
    Resource Type:
    Masters Thesis
    Full Text:
    Sediments from the Panama Basin AN ABSTRACT OF THE THESIS OF YEOUNG TING KAO for the Master. of Science

  • Fate of THMs in Columbia River basalts during aquifer storage and recovery

    Creator:
    Bertrand, Danelle
    Abstract:
    Use of basalt aquifers for aquifer storage and recovery (ASR) systems is increasing in the Pacific Northwest due to the large aerial extent of the Columbia River Basalt Group and the suitability of basalts as ASR reservoirs. However, the degradation of trihalomethanes (THMs), potentially carcinogenic disinfection by-products present in the...
    Resource Type:
    Masters Thesis
    Full Text:
    the degree of Master of Science in Civil Engineering presented on March 18, 2010. Title: Fate of

  • Multi-hazard framework and analysis of soil-bridge systems : long duration earthquake and tsunami loading

    Creator:
    Carey, Trevor J.
    Abstract:
    During the 2011 Great East Japan Earthquake and Tsunami, numerous bridge structures were damage or destroyed. The damage to bridge systems was caused by long duration strong ground shaking, tsunami inundation forces, or both. Long duration strong ground shaking from subduction zone earthquakes and the multi-hazard scenario of combined earthquake...
    Resource Type:
    Masters Thesis
    Full Text:
    degree of Master of Science in Civil Engineering presented on August 22, 2014. Title: Multi-Hazard

  • Impact of Bicycle Rolling Stop Laws on Safety-Relevant Behaviors in the Pacific Northwest

    Creator:
    Woodside, Jasmin Barnes
    Abstract:
    Previous research has found some bicyclists disregard circular red indications and stop signs. Possible justifications include a desire to increase safety, save energy, save time, and increase visibility. Because of this, many bicyclists feel as though stopping at stop signs, especially in the absence of conflicting vehicular traffic, is an...
    Resource Type:
    Masters Thesis
    Full Text:
    Jasmin Barnes Woodside, PE for the degree of Master of Science in Civil Engineering presented on August

  • Nearshore wave predictions along the Oregon and southwest Washington coast

    Creator:
    García-Medina, Gabriel
    Abstract:
    This thesis contains a manuscript describing the implementation of a high resolution wave forecasting model for the coasts of Washington and Oregon. The purpose of this project was to advance the wave predictive capabilities of the states of Oregon and the southwest part of Washington by including the effects of...
    Resource Type:
    Masters Thesis
    Full Text:
    García-Medina for the degree of Master of Science in Civil Engineering presented on September 7, 2012

  • Bridge Damage State Detection Based on Strain-Based Wireless Structural Health Monitoring

    Creator:
    Slaven, Kelli R.
    Abstract:
    The Pacific Northwest is at risk for significant seismic and tsunami events, which are capable of severely damaging lifeline transportation infrastructure, particularly bridges. As the bridges in the United States age and begin to show signs of fatigue, the risk for severe damage increases. Proper monitoring and inspection of bridges...
    Resource Type:
    Masters Thesis
    Full Text:
    degree of Master of Science in Civil Engineering presented on June 29, 2016. Title: Bridge Damage

  • Student Engagement : Exploring How and Why Students Engage In- and Out-of-Class

    Creator:
    Pascoe, Jason J.
    Abstract:
    Student engagement in a course plays a vital role in a student’s ability to process and construct knowledge. Student engagement research has investigated how students engage in and out of the classroom on a macro scale, through observation and survey data collection of large student populations, which lack focus on...
    Resource Type:
    Masters Thesis
    Full Text:
    computer science course at a large research intensive institution in the Pacific Northwest were invited

  • Tsunami and hurricane wave loads on bridge superstructures

    Creator:
    Azadbakht, Mohsen
    Abstract:
    This dissertation examines tsunami and hurricane wave loads on bridge superstructures. Tsunamis have caused significant damage to coastal communities in recent years. For example, the 2011 Great East Japan Earthquake and resulting Tohoku Tsunami destroyed infrastructure along the east coast of Japan including bridge superstructures. Recent hurricanes have also caused...
    Resource Type:
    Dissertation
    Full Text:
    .......................................................................................................... 46 3. CHAPTER 3: ESTIMATION OF CASCADIA LOCAL TSUNAMI LOADS ON PACIFIC NORTHWEST BRIDGE

  • Tsunami inundation : estimating damage and predicting flow properties

    Creator:
    Wiebe, Dane Michael
    Abstract:
    The 2004 Indian Ocean and 2011 Tohoku tsunami events have shown the destructive power of tsunami inundation to the constructed environment in addition to the tragic loss of life. A comparable event is expected for the Cascadia Subduction Zone (CSZ) which will impact the west coast of North America. Research...
    Resource Type:
    Masters Thesis
    Full Text:
    Wiebe for the degree of Master of Science in Civil Engineering presented on March 22, 2013. Title

  • Assessment of Environmental Impacts of Wood Substitution in Commercial Construction

    Creator:
    Milaj, Kristina
    Abstract:
    In the residential sector, wood is the predominant construction material. In the commercial sector and in mid‐rise construction, the use of wood is limited because of a multitude of reasons, including building code restrictions, the perception of wood as a structural material, fire code requirements, and lack of knowledge and...
    Resource Type:
    Masters Thesis
    Full Text:
    degree of Master of Science in Civil Engineering and Wood Science presented on September 16, 2016

  • Examination of lateral stiffness and strength of pitched residential roof diaphragms with implications for seismic design.

    Creator:
    Kirkham, William J.
    Abstract:
    There are about 80 million single-family dwellings (SFD) in the United States, predominantly of wood-frame construction. Of these, 68% are owner occupied. A home is typically the largest single investment of a family, and is often not covered by earthquake insurance, even where it is available. Of all SFD in...
    Resource Type:
    Dissertation
    Full Text:
    DISSERTATION OF William J. Kirkham for the degree of Doctor of Philosophy in Wood Science and Civil

  • Effect of Hole Edge Distance on Strength of Through-Bored Utility Poles

    Creator:
    Romanaggi, Bennett T.
    Abstract:
    There are over 130 million wood poles supporting electrical transmission and distribution lines in the U.S. The vast majority of these poles are preservative treated to prolong their useful life. In some cases, however, the depth of treatment is relatively shallow, leaving a deep zone of moderately durable, untreated heartwood....
    Resource Type:
    Masters Thesis
    Full Text:
    ABSTRACT OF THE THESIS OF Bennett Romanaggi for the degree of Master of Science in Wood Science and

  • Tsunami loading on light-frame wood structures

    Creator:
    Linton, David B.
    Abstract:
    Since 2004 there have been multiple devastating tsunamis around the globe triggered by large magnitude earthquakes; with the most recent being the Tohoku, Japan tsunami in March 2011. These tsunamis have caused significant loss of life and damage to the coastal communities impacted by these powerful waves. The resulting devastation...
    Resource Type:
    Masters Thesis
    Full Text:
    . Linton for the degree of Master of Science in Wood Science and Civil Engineering presented March 20