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  • Active and Passive Structural Vibration Mitigation for High-Speed Machine Tools

    Creator:
    Indrarto, Christopher Wilfred
    Abstract:
    This thesis presents novel feedback and feedforward control system design strategies for active to passive vibration mitigation of residual vibrations on high speed machine tools. Residual vibrations on high-speed machine tools are triggered when the machine axes (table) undergo large accelerations, which induce sudden inertial forces and excite the lightly...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Christopher

  • Adversarial Attacks in Natural Language Question-Answering

    Creator:
    Rahurkar, Prachi S.
    Abstract:
    Question Answering in natural language processing has achieved significant progress in recent years. Yet, training and testing set methodology to evaluate the language models has proved inadequate. Adversarial examples aid us in finding loopholes inside these models and provide insights into their inner workings. In this work, an evaluation based...
    Resource Type:
    Masters Thesis
    Full Text:
    , but with different paragraphs which still contain the answer. This problem is explored here with the

  • An interdisciplinary framework for evaluating 19th century landscape paintings for ecological research

    Creator:
    Warren, Dana R., Loeb, Harper M., Betjemann, Peter, Munck, Isabel A., Keeton, William S., Shaw, David C., and Harvey, Eleanor J.
    Abstract:
    As we contemplate the future of forest landscapes under changing climate conditions and land-use demands, there is increasing value in studying historic forest conditions and how these landscapes have changed following past disturbances. Historic landscape paintings are a potential source of data on preindustrial forests with highly detailed, full-color depictions...
    Resource Type:
    Article
    Full Text:
    , 1962). However, these assessments still miss many key features of past forests, particularly complex

  • Applications in plant breeding : end-use quality, tissue culture propagation systems, and outreach for K-12 education

    Creator:
    Halstead, Margaret A.
    Abstract:
    This thesis consists of five chapters: a general introduction, two manuscripts, a collection of published lesson plans, and a general conclusion. The works collected herein are united by the common theme of practical applications in plant breeding. The first manuscript reports a study performed on five malting barley lines grown...
    Resource Type:
    Masters Thesis
    Full Text:
    for growers. However, because hemp is still an emerging crop and research on hemp was halted for

  • Can Concept-mapping Exercises Enhance Learning in Online Courses?

    Creator:
    Sanchez, Christopher A.
    Abstract:
    Prior research has suggested that homework activities that encourage learners to think more conceptually about to-be-learned material can have positive benefits on overall content learning. Can such activities be implemented successfully in online coursework, and does it produce the anticipated benefit? In two sections of an online Psychology course, participants...
    Resource Type:
    Research Paper
    Full Text:
    Learning in Online Courses? Christopher A. Sanchez Oregon State University

  • Focus ; Fall 2008

    Creator:
    Oregon State University. College of Forestry
    Abstract:
    Focus is published by Oregon State University College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.
    Resource Type:
    Other
    Full Text:
    -09 budget slows the free-fall, but still leaves the College below our faculty levels and

  • Focus ; Fall 2015

    Creator:
    Oregon State University. College of Forestry
    Abstract:
    Focus is published by Oregon State University College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.
    Resource Type:
    Other
    Full Text:
    old- growth canopies in Chile and the Pacific Northwest, Christopher Still, Dave Shaw, Steve Perakis

  • Focus ; Spring 2010

    Creator:
    Oregon State University. College of Forestry
    Abstract:
    Focus is published by Oregon State University College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.
    Resource Type:
    Other
    Full Text:
    manufacturing. Knowles knew he was interested in forestry when he was still in high school. Growing up in

  • Focus ; Spring 2012

    Creator:
    Oregon State University. College of Forestry
    Abstract:
    Focus is published by Oregon State University College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.
    Resource Type:
    Other
    Full Text:
    & Engineering. Christopher Still (UCSB), Thomas Hilker (Colorado), and Michael Wing (OSU) will add depth for

  • Focus ; Spring 2013

    Creator:
    Oregon State University. College of Forestry
    Abstract:
    Focus is published by Oregon State University College of Forestry. Our goal is to keep Forestry alumni, friends, faculty, staff, and students informed about the College of Forestry and its many activities and programs.
    Resource Type:
    Other
    Full Text:
    ,” something he has not done in a long time. Christopher Still Ecologist, Collaborator, Climatologist The