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  • Three Topics on Coastal Hazards : Propagation, Transformation, and Impact

    Creator:
    Ko, Harrison T.
    Abstract:
    An understanding of natural coastal hazards is essential for improving resilience of coastal communities. Effective management of coastal hazards relies on prediction tools and mitigation structures that have been designed to handle the dynamic coastal system. This dissertation is a collection of manuscripts that cover a diverse range of fundamental...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Harrison T.-S. Ko for the

  • Functional analysis to inform early design decisions for novel systems with substantial operations and maintenance costs

    Creator:
    Algarra, Nathan
    Abstract:
    Long field-life systems are those for which operational, as opposed to capital, expenditures dominate the life time cost of the system. In established product categories, operational experience and historical maintenance data allows engineers to make informed decisions influencing maintenance during the early design stages when design changes are at their...
    Resource Type:
    Masters Thesis
    Full Text:
    Costs Abstract approved: Andy Dong Long field-life systems are those for which operational, as opposed

  • Realized regulatory complexity : unveiling the hidden effect of regulation structure on product architecture

    Creator:
    Robinson, David Myles
    Abstract:
    Government regulation is an established policy tool for inducing technological innovation in a market. For example, many environmental regulations prescribe performance requirements that industry complies with by innovating aspects of the product design. These design innovations might include updated components, new functionality, or a revised product architecture. However, the effect...
    Resource Type:
    Masters Thesis
    Full Text:
    Architecture Abstract approved: Andy Dong Government regulation is an established policy tool for inducing

  • Validation of Design For Additive Manufacturing Heuristics for Aperiodic Structures through Application to Regular Structures

    Creator:
    Schipper, Paxton
    Abstract:
    Aperiodic structures cause significant challenges to subtractive manufacturing methods due to the common features such as inaccessible voids within the structure. Additive man- ufacturing presents an appealing alternative for this purpose. The aim of this research is to test analysis heuristics for validity through application to periodic structures. First, a...
    Resource Type:
    Honors College Thesis
    Full Text:
    :_____________________________________________________ Andy Dong Aperiodic structures cause significant challenges to subtractive manufacturing

  • Characterization of myosin, myoglobin, and phospholipids isolated from Pacific sardine (Sadinops sagax)

    Creator:
    Park, Joo Dong
    Abstract:
    Myoglobin (Mb) was extracted from Pacific sardine and added to Pacific whiting surimi to measure its effects on protein gelation. The purity of Mb extract was determined by SDS-PAGE. Mb extracted using ethanol showed higher purity than Mb extract using ammonium sulfate. The addition of 0.2% Mb significantly reduced breaking...
    Resource Type:
    Dissertation
    Full Text:
    Microsoft Word - Pretext-Joo Dong Park.doc

  • The Structural Characteristics of Robustness in Large-Scale Complex Engineered Systems

    Creator:
    Walsh, Hannah S.
    Abstract:
    Modern engineered systems are increasingly integrated into society, decentralized, and interconnected. However, scale and complexity create unique challenges in system design, such as emergent behavior and unintended consequences. This work investigates the structural characteristics of robustness in complex engineered systems by identifying patterns of under-recognized vulnerabilities at various levels of...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Hannah S. Walsh for the

  • Design techniques for low-voltage analog-to-digital converter

    Creator:
    Chang, Dong-Young
    Abstract:
    Continuous process scale-down and emerging markets for low-power/low-voltage mobile systems call for low-voltage analog integrated circuits. Switched-capacitor circuits are the building blocks for analog signal processing and will encounter severe overdrive problems when operating at low-voltage conditions. There are several well-known techniques to bypass the problem. These approaches include: (1)...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Dong-Young Chang for the degree of

  • Deformation-based seismic design models for waterfront structures

    Creator:
    Yang, Dong-Shan
    Abstract:
    Recent experience demonstrates that waterfront structures are vulnerable to earthquake damage. The poor seismic performance of these facilities has been primarily due to liquefaction of backfill and/or foundation soils and the lack of seismic design standards for waterfront structures. The seismic performance of waterfront structures is a key issue in...
    Resource Type:
    Dissertation
    Full Text:
    Structures AN ABSTRACT OF THE DISSERTATION OF Dong-Shan Yang for the degree of Doctor of Philosophy in

  • Hydraulic experiments on impact forces from tsunami-driven debris

    Creator:
    Ko, Harrison T.
    Abstract:
    Impact by an idealized shipping container on a column were observed for tsunami flow in a large-scale wave flume modeled at the O.H. Hinsdale Wave Research Laboratory at Oregon State University. Two specimen types, aluminum and acrylic, were tested; and each specimen was tested in two orientations, longitudinal and transverse....
    Resource Type:
    Masters Thesis
    Full Text:
    -Driven Debris AN ABSTRACT OF THE THESIS OF Harrison T. Ko for the degree of Master of Science in

  • Computer aided model generation for high performance dynamometers

    Creator:
    Ko, Seung-uk
    Abstract:
    A model has been developed for accurate emulation of the complex behavior of high performance dynamometers used in a broad range of applications including manufacturing systems, biomechanics research, and crash testing. The key objective of this research has been to reach the proper balance between the accuracy of emulation and...
    Resource Type:
    Masters Thesis
    Full Text:
    dynamometers AN ABSTRACT OF THE THESIS OF Seung-uk Ko for the degree of Master of Science in Mechanical