Search Constraints

Start Over
Filtering by: Creator Downs, R. T. Remove constraint Creator: Downs, R. T. Academic Affiliation Electrical Engineering and Computer Science Remove constraint Academic Affiliation: Electrical Engineering and Computer Science

Search Results

  • Design of high efficiency step-down switched capacitor DC/DC converter

    Creator:
    Ma, Mengzhe
    Abstract:
    Recently, switched capacitor DC/DC converters are extensively used in portable electronic devices because they feature many advantages, such as high efficiency, small package, low quiescent current, minimal external components and low cost. In this thesis, two step-down switched capacitor DC/DC converters are designed. One has the fixed output options 1.5V,...
    Resource Type:
    Masters Thesis
    Full Text:
    High Efficiency Step-Down Switched Capacitor DC/DC Converter Abstract approved: Gábor C. Temes Un-Ku

  • Modeling and experimental verification of electric and magnetic fields generated by undersea power transmission cables

    Creator:
    York, Charles E.
    Abstract:
    As interest grows in developing devices to harvest energy from ocean waves, tidal currents, and offshore wind, concerns over possible environmental effects from such devices also grow. One such concern is over the induced electric fields and the generated magnetic fields from generators and their associated submarine power cables in...
    Resource Type:
    Masters Thesis
    Full Text:
    2πr (2.1) where r is the distance away from the wire and H is the intensity of the resulting

  • Enhancing Resolution and Scalability of Power Grid Reliability Algorithms

    Creator:
    Lassetter, Austin R.
    Abstract:
    This Thesis aims to determine whether we can improve the accuracy, resolution, and speed of calculations for common power system problems using simple computational models that scale well to machine learning and high performance computing solutions. The second chapter of this Thesis implements more precise aging and degradation models for...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Austin R. Lassetter for the

  • Interactive visualization of diversity in multivariate data sets unified across fields of study

    Creator:
    Pham, Tuan N. T.
    Abstract:
    The study of the diversity of multivariate objects shares common characteristics across disciplines, including ecology and organizational management. Nevertheless, experts in these two disciplines have adopted somewhat separate diversity concepts and analysis techniques, limiting the ability of potentially sharing and cross comparing these concerns. Moreover, while complex diversity data may...
    Resource Type:
    Dissertation
    Full Text:
    lovely and witty wife, who has shared with me all the ups and downs of this journey with her tender love

  • A tunable duty-cycle-controlled switched-R-MOSFET-C CMOS filter for low-voltage and high-linearity applications

    Creator:
    Xiao, Ying
    Abstract:
    A novel switched-R-MOSFET-C input branch is proposed for low-voltage and high-linearity applications. The tunability is achieved by varying the clock duty cycle using an automatic tuning circuit. This tuning method does not involve a change in gate voltage, and is therefore particularly suitable for low-voltage applications. The advantages of the...
    Resource Type:
    Masters Thesis
    Full Text:
    significant improvement of distortion. Second, a simple R-MOSFET input branch is applied to scale down the

  • Implementation Techniques for Variational Data Structures

    Creator:
    Meng, Meng
    Abstract:
    Many applications require not only representing variability in software and data, butalso computing with it. To do so efficiently requires variational data structures thatmake variability explicit in the underlying data and the operations used to manipulate it.Variational data structures have been developed ad hoc for many applications, but thereis little...
    Resource Type:
    Masters Thesis
    Full Text:
    Techniques for Variational Data Structures Abstract approved: Eric T. Walkingshaw Many applications require

  • Formative Work Toward a Mixed-Initiative Programming Language

    Creator:
    Abbott, Keeley
    Abstract:
    Mixed-initiative programming entails collaboration between a computer system, and a human to achieve some desired goal or set of goals. Often these goals change or are amended in real time during the course of program execution. As such, the plans these programs are based on must adapt and evolve to...
    Resource Type:
    Masters Thesis
    Full Text:
    Mixed-Initiative Programming Language Abstract approved: Eric T. Walkingshaw Mixed-initiative

  • Action Selection for Heterologous Control of a Continuous-Output Myoelectric Prosthesis

    Creator:
    Sylwester, Sean T.
    Abstract:
    Significance: Movement intent decoding algorithms can interpret human bioelectrical signals to control prosthetic limbs with many degrees of freedom (DOFs). This work involves decoding volitional movement intent from surface electromyogram (sEMG) signals to control prosthetic arms. To train these algorithms, patients flex their muscles to “follow” a movement prompt, and...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Sean T. Sylwester for the degree

  • Global Hierarchical Control of a Park of Spar Buoy-type Floating Oscillating Water Column Wave Energy Converters

    Creator:
    Gaebele, Daniel T.
    Abstract:
    Converting energy from ocean waves is a challenging area for control theory application because of the nonlinear dynamics in various time scales. Generally, wave energy converter (WEC) control is applied in order to maximize power absorption, in the most common wave conditions, and subject to the devices’ physical constraints. Commonly,...
    Resource Type:
    Dissertation
    Full Text:
    world frame Rr − intrinsic rotation matrix about rzi , rxi , r y i T r − rotation matrix for

  • Joining open source software communities: an analysis of newbies’ first interactions on project mailing lists

    Creator:
    King, Scott T.
    Abstract:
    Open source software has become a powerful force in the world of computing. While once confined to the domain of technical specialists, people of all types have begun to adopt this software – from the casual web-surfer who uses Firefox, to the professional web developer who codes in PHP or...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Scott T. King for the degree of Master of Science in Computer