Index Catalog // ScholarsArchive@OSU

Micro in-lab grid integration of a wave energy converter

Creator:: Okuda, Jeremy S.
Abstract:: Ocean wave energy has great potential to develop into a strong and reliable form of renewable energy. As the technology develops, more wave energy converters will be grid interconnected and the variable nature of the ocean will begin to influence the stability of the electrical grid system. There are many...
Resource Type:: Masters Thesis
Full Text:: operating on a vertical linear test bed. The buoy power take-off is connected to a 480 V line-to-line

Motion detection algorithm using wavelet transform

Creator:: Lee, Jeongmin
Abstract:: This thesis presents an algorithm that estimates motion in image sequence using wavelet transform. The motion detection is performed under unfavorable conditions of background movement, change of brightness, and noise. The algorithm is tolerant to brightness changes, noise, and small movement in the background. The false alarm rate of motion...
Resource Type:: Masters Thesis
Full Text:: image frames (a), (b) caltrain (512 x 400, 8bits), (c), (d) table-tennis (720 x 480, 8bits), (e), (1

Novel phosphor development for alternating-current thin-film electroluminescent devices

Creator:: Maddix, Crystal M.
Resource Type:: Masters Thesis

Development of acoustic transducers for use in the parametric pumping of spin waves

Creator:: Gross, Jonah M.
Abstract:: The work detailed here is the development of simulations and fabrication techniques used for the construction of thin-film acoustic transducers for use in the parametric pumping of spin waves. The Mason Model, a 1-D equivalent circuit simulating the responses of multilayer acoustic transducers, is implemented using ABCD-parameters in MATLAB to...
Resource Type:: Masters Thesis
Full Text:: highlighted. Measurements are from transduc- ers with ZnO thicknesses of (a) 480 nm, (b) 641 nm, (c) 743 nm

Effects of ultraviolet illumination and a parylene-A activation layer on the gas phase sensing characteristics of ZnO nanobridges

Creator:: Mason, Ashley D.
Abstract:: ZnO nanowires (NWs) are good candidates for chemical sensing because of their high surface-to-volume ratio. In this work, ZnO nanobridge sensors were fabricated utilizing a novel method which uses carbonized photoresist (C-PR) as a nucleation layer. The use of C-PR allows simultaneous growth and integration of NWs to lithographically-defined features....
Resource Type:: Masters Thesis

Design, fabrication, and testing of inhomogeneous dielectrics

Creator:: Lim, Sungkyoo
Abstract:: In this thesis the concept of inhomogeneous dielectrics is demonstrated for various optical coating applications. Compositionally-varying silicon oxynitride (SiON) dielectric layers, with the refractive index varying as a function of position, are grown by computer-controlled plasma-enhanced chemical vapor deposition (PECVD) using silane, nitrogen, and nitrous oxide reactant gases. Compositionally graded...
Resource Type:: Dissertation

Reactive power optimization using adaptive excitation control of synchronous power

Creator:: Al Hamrani, Majed M.
Abstract:: Synchronous machines provide a practical way to control reactive power consumption of a plant. One of the main advantages of using synchronous motors in a plant is their ability to generate reactive power for plant loads. A new control scheme for synchronous motor excitation systems is developed to automate reactive...
Resource Type:: Masters Thesis
Full Text:: Diagram of the AEC System ............................................................. 9 6. 480 V Feeder

New Techniques for Multi-Channel Biosignal Acquisition and Low-Power, Low-Resistance-Measurement Systems

Creator:: Kim, Jinyong
Abstract:: Dense electrical recording of biosignals has been developed to provide spatial resolution and precise temporal information for health monitoring, diagnostics, and clinical research. However, more electrodes require more wires, and wiring density quickly becomes a limiting factor. To break this bottleneck, we proposed a frequency-division multiplexing (FDM) based architecture for...
Resource Type:: Dissertation
Full Text:: either side of the Dirac point (-480 mV) yields negative and positive conductance change

Characterization of coupled microstrip structure using FDTD

Creator:: Kim, Yoonsuk
Abstract:: A new CAD-oriented methodology for the full-wave broadband characterization of coupled microstrip structures for RF/microwave and high-speed digital circuits is presented. The characterization methodology is based on the finite difference time domain (FDTD) technique combined with a systematic extraction procedure using the normal mode approach and multiport network concepts. The...
Resource Type:: Dissertation

Fabrication and characterization of thin-film transistor materials and devices

Creator:: Hong, David
Abstract:: A class of inorganic thin-film transistor (TFT) semiconductor materials has emerged involving oxides composed of post-transitional cations with (n-1)d¹⁰ns⁰ (n≥4) electronic configurations. This thesis is devoted to the pursuit of topics involving the development of these materials for TFT applications: Deposition of zinc oxide and zinc tin oxide semiconductor layers...
Resource Type:: Dissertation

ScholarsArchive@OSU

Micro in-lab grid integration of a wave energy converter

Motion detection algorithm using wavelet transform

Novel phosphor development for alternating-current thin-film electroluminescent devices

Development of acoustic transducers for use in the parametric pumping of spin waves

Effects of ultraviolet illumination and a parylene-A activation layer on the gas phase sensing characteristics of ZnO nanobridges

Design, fabrication, and testing of inhomogeneous dielectrics

Reactive power optimization using adaptive excitation control of synchronous power

New Techniques for Multi-Channel Biosignal Acquisition and Low-Power, Low-Resistance-Measurement Systems

Characterization of coupled microstrip structure using FDTD

Fabrication and characterization of thin-film transistor materials and devices

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