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Filtering by: Creator Lee, Byeung Kyun Remove constraint Creator: Lee, Byeung Kyun Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • A model reference adaptive system for control of a flexible mechanical manipulator

    Creator:
    Lee, Byeung Kyun
    Abstract:
    For control of a flexible manipulator, the assumed- mode method is applied to the mathematical model of the model reference adaptive system. In the assumed-mode method, the flexible, continuous manipulator is described by a limited number of degrees of freedom. A modified model reference adaptive system is studied for direct...
    Resource Type:
    Dissertation
    Full Text:
    flexible mechanical manipulator AN ABSTRACT OF THE THESIS OF Byeung Kyun Lee for the degree of Doctor of

  • Plant growth regulators and shattering control in cool-season perennial grasses

    Creator:
    Lee, Suk-Kyun
    Abstract:
    Shattering is a natural phenomenon of floret and spikelet disarticulation across abscission layers of the pedicel and rachilla, respectively, after seed maturation. Seed shattering in cool-season grasses and native grass species is an economic problem in seed production. This study was conducted to determine whether the use of the plant...
    Resource Type:
    Masters Thesis

  • Managing woody biomass transportation for improved biomass economics

    Creator:
    Han, Sang-Kyun
    Abstract:
    With rising fuel costs and enhanced environmental concerns, the use of renewable energy has been steadily considered and widely expounded as a solution to the challenges of global energy security and climate change. The use of woody biomass, in particular, has received considerable attention for energy production due to the...
    Resource Type:
    Dissertation
    Full Text:
    DISSERTATION OF Sang-Kyun Han for the degree of Doctor of Philosophy in Forest Engineering presented

  • Terahertz imaging and spectroscopy of carbon-based and semiconductor nanostructures

    Creator:
    Tomaino, Joseph L.
    Abstract:
    This thesis will cover work that I have completed relating to the field of terahertz (THz) science. My work has consisted of generating tunable, narrowband THz pulses in a table-top optical setup and using both narrow- and broadband THz pulses to study various material systems. Broadband THz pulses were used...
    Resource Type:
    Dissertation
    Full Text:
    Spectroscopy of Carbon-Based and Semiconductor Nanostructures. Abstract approved: Yun-Shik Lee

  • Modeling air-drying of Douglas-fir and hybrid poplar biomass in Oregon

    Creator:
    Kim, Dong-Wook
    Abstract:
    Both transportation costs and market values of woody biomass are strongly linked to the amount of moisture in the woody biomass. Therefore, managing moisture in the woody biomass well can lead to significant advantages in the woody biomass energy business. In this study, two prediction models were developed to estimate...
    Resource Type:
    Masters Thesis
    Full Text:
    . Sang-Kyun Han, Yo-Han Lee, Dr. Jung-Il Seo, Fernando Becerra, Storm Beck, Kelsey Lee, Jennifer

  • Local and Regional Patterns in Eelgrass (Zostera marina L.) Communities Along an Upwelling-Productivity Gradient in Oregon Estuaries, USA

    Creator:
    Motley, Jennifer
    Abstract:
    In this thesis, I investigate the organization of eelgrass (Zostera marina L.) and mesograzer communities across local and regional scales in three upwelling- influenced estuaries located along the Oregon coast, USA. Eelgrass ecosystems are an important source of primary production in estuarine systems, providing numerous ecosystem services, including nursery habitat...
    Resource Type:
    Masters Thesis
    Full Text:
    , Hasegawa 2007, Jorgensen 2007, Lee et al. 2007, Hessing-Lewis et al. 2011, 2015, Hessing-Lewis and Hacker

  • Kinematic analysis of legged system locomotion on smooth horizontal surfaces

    Creator:
    Baek, Yoon Su
    Abstract:
    This thesis presents a model of legged locomotion in which position and velocity of body are directly controlled by positions and velocities of feet. One central relationship between foot acceleration, leg stroke and body velocity is developed. Procedures for determining all parameters of a step sequence including periods of constant...
    Resource Type:
    Dissertation
    Full Text:
    , I am deeply appreciate to my parents, Se Kyun Baek and Woo Phyll Cheon, wife, Dr. Jong Ho Lee, son

  • Printing 3D Magnetic Composite Structures with Arbitrary Anisotropy using UV-curable Magnetic Ink

    Creator:
    Clay, Garrett
    Abstract:
    Inkjet printing offers a cost effective, highly customizable method for rapid manufacturing of functional devices with minimal material waste. Although this method has been used for a variety of composites, little work has been done in the area of 3D printing magnetic composites. Presented here is a process for inkjet...
    Resource Type:
    Masters Thesis
    Full Text:
    have an increased inductance when compared with the same inductors with air cores. Similarly, Lee and

  • Breeding and genetics of lilacs and hardy hibiscus

    Creator:
    Lattier, Jason D.
    Abstract:
    Lilacs are a group of ornamental trees and shrubs in the Oleaceae family consisting of 22 to 30 species. There are six series within genus Syringa: Pubescentes, Villosae, Ligustrae, Ligustrina, Pinnatifoliae, and Syringa. Fertility and cross-compatibility among cultivars, species, and series have yet to be formally investigated. Over three years,...
    Resource Type:
    Dissertation