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Filtering by: Advisor Engle, John F. Remove constraint Advisor: Engle, John F. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Theoretical influence of untransposed transmission line construction on system losses and voltage balance

    Creator:
    Chanakorn, Chavalit
    Abstract:
    The purpose of this thesis is to investigate the necessity of transposition in the construction of overhead transmission lines. Line currents, line voltages and line losses of both the transposed and untransposed lines were calculated and compared for two different voltage classes. The conventional method of symmetrical components was used...
    Resource Type:
    Masters Thesis
    Full Text:
    LOSSES AND VOLTAGE BALANCE Redacted for PrivacyAbstract approved John F. Engle The purpose of this

  • Digital model of a synchronous generator excitation system

    Creator:
    Ramchandani, Hiranand Balchand
    Abstract:
    This thesis develops a simplified and logical simulation model for an amplidyne excitation system for a synchronous generator with an automatic voltage regulator. The non-transfer function representation using field determined parameters including variable inductance and machine saturation was used to reduce the computing time for the stability analysis. The simulation...
    Resource Type:
    Masters Thesis
    Full Text:
    MODEL OF A SYNCHRONOUS GENERATOR EXCITATION SYSTEM Redacted for privacy Abstract approved:i John. F

  • Hybrid, high speed fault detection based on instantaneous line voltages

    Creator:
    Ramchandani, Hiranand Balchand
    Abstract:
    This fault detection scheme is based on sampling the instantaneous phase voltages and checking their sum and magnitude against a specified voltage. Faults on the system cause unbalances and distortion of the phase voltages and currents. The currents and voltages change in magnitude and/or phase position with respect to the...
    Resource Type:
    Dissertation
    Full Text:
    express his gratitude to his advisor Prof. John F. Engle for his help, guidance, and suggestions in

  • High energy impulse generator design

    Creator:
    Spee, Rene
    Abstract:
    The scope of this project was to build a high energy impulse generator to be used for educational and research purposes, such as small scale modeling of lightning and switching surges or small scale simulation of an electromagnetic pulse (EMP). A one-stage impulse generator was designed to deliver a voltage...
    Resource Type:
    Masters Thesis
    Full Text:
    Privacy John F. Engle The scope of this project was to build a high energy impulse generator to be used

  • Industrial power system faults

    Creator:
    Badr, Ahmad Mohamad Amin
    Abstract:
    The purpose of this thesis is to represent and calculate unsymmetrical secondary faults on a grounded wye-to-delta transformer bank. This thesis is specifically concerned with the secondary connections often encountered in industrial installations. Faults on these systems have not been adequately investigated. Three types of faults are considered, namely: 1....
    Resource Type:
    Masters Thesis
    Full Text:
    gratitude to Professor John F. Engle for his help, guidance, and suggestions in every section of this thesis

  • Nucleation Inhibiting Mechanisms in Atomic Layer Deposition of Nanolaminates

    Creator:
    Witsell, Shane Mike’ele Williama
    Abstract:
    Nucleation in atomic layer deposition (ALD) determines how many cycles are required to initiate growth and to form a continuous film. Nucleation has been exploited for the formation of nanoparticles, catalysts, and for area-selective ALD. Although sometimes overlooked or misrepresented in ALD reports, nucleation is also critical for multicomponent ALD...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ John F. Conley, Jr. Nucleation in atomic layer deposition (ALD) determines how many cycles

  • Atomic Layer Processing for Next-Generation Microelectronic Materials

    Creator:
    Holden, Konner E. K.
    Abstract:
    Atomic layer deposition (ALD) is an enabling technique for many new micro- and nanoscale technologies. The self-limiting surface chemical reactions by which ALD fundamentally operates give rise to uniquely high precision (atomic) control over deposited film thickness, uniformity over large areas, and conformality over complex and extreme topographies. One such...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ John F. Conley, Jr. Atomic layer deposition (ALD) is an enabling technique for many

  • Investigation of Energy Barrier Heights within Metal-insulator-metal Devices via Internal Photoemission Spectroscopy

    Creator:
    Jenkins, Melanie A.
    Abstract:
    Metal-insulator-metal (MIM) and dual-insulator MIM (MIIM) devices are used in rectennas, hot-electron transistors, single electron transistors, resistive random access memory (RRAM), and capacitors. The performance of these devices relies heavily on the energy barrier height at each metal-insulator interface. Thus, determination of the in-situ electron energy barrier at each interface...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ John F. Conley Jr

  • Assessment of High Mobility Oxide Thin-Film Transistors

    Creator:
    Stewart, Kevin A.
    Abstract:
    The trend towards higher resolution, faster refresh rate active-matrix liquid-crystal displays (AMLCDs) as well as the emergence of active-matrix organic light-emitting diode (AMOLED) displays is driving the demand for amorphous oxide semiconductor thin-film transistors (AOS TFTs) with higher mobility. A physics-based model for carrier transport in an amorphous semiconductor is...
    Resource Type:
    Dissertation
    Full Text:
    , 2017. Title: Assessment of High Mobility Oxide Thin-Film Transistors Abstract approved: John F

  • DC/AC Stability of In-Ga-Zn-O Thin-Film Transistors

    Creator:
    Zhou, Fan
    Abstract:
    The electrical stability of amorphous indium-gallium-zinc oxide (a-IGZO) thinfilmtransistors (TFTs) is investigated for flat-panel display applications. Althoughproducts incorporating a-IGZO TFT backplanes are already commercially available,e.g., iMac with 5K retina display, technical challenges need to be addressed for nextgenerationapplications, e.g., active-matrix organic light-emitting diode displays.Device stability is one crucial issue. The...
    Resource Type:
    Dissertation
    Full Text:
    Transistors Abstract approved: ______________________________________________________ John F