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Filtering by: Creator Jones, W. F. Remove constraint Creator: Jones, W. F. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Zonal Resource Adequacy for Voltage Control

    Creator:
    Boller, Michael D.
    Abstract:
    In a power system, operators maintain voltage stability through adequate reactive reserves. Maintaining and accessing an efficient allocation of reactive reserves is prohibitively complex because of reactive line losses, the variety of reactive resources, and either limited or variable reactive outputs from renewable sources. By clustering the system into smaller...
    Resource Type:
    Masters Thesis

  • Zinc tin oxide thin-film transistor current mirror circuits

    Creator:
    Feller, Layannah Elizabeth
    Abstract:
    The central focus of this thesis is the design, fabrication and characterization of amorphous oxide semiconductor (AOS) thin-film transistor (TFT) current mirrors. The thin-film deposition and circuit fabrication methods used to realize zinc tin oxide (ZTO) TFT current mirrors are addressed in order to elucidate the processing challenges for this...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: Zinc Tin Oxide Thin-Film Transistor Current Mirror Circuits Abstract approved: John F. Wager

  • Zinc tin oxide thin-film transistor circuits

    Creator:
    Heineck, Daniel Philip
    Abstract:
    The primary objective of this thesis is to develop a process for fabricating integrated circuits based on thin-film transistors (TFTs) using zinc tin oxide (ZTO) as the channel layer. ZTO, in contrast to indium- or gallium-based amorphous oxide semiconductors (AOS), is perceived to be a more commercially viable AOS choice...
    Resource Type:
    Masters Thesis
    Full Text:
    Tin Oxide Thin-Film Transistor Circuits Abstract approved: John F. Wager The primary objective of

  • Wirelessly Powered cm-Scale Sensor for Small Insect Localization Application

    Creator:
    Kang, Jian
    Abstract:
    The prevalence of Internet-of-Things (IoT) applications leads to an increasing focus on the design and optimization of sensor nodes. Battery lifetime and associated costs of battery replacement often limits the long term operation and viability of sensor nodes. RF wireless energy harvesting on the other hand can be appealing since...
    Resource Type:
    Dissertation
    Full Text:
    transmitter power which output into the antenna is 1 W (30 dBm) and the maximum EIRP when using directional

  • Wireless Microwave Sensing in Environmental and Biomedical Applications

    Creator:
    Uluer, Ismail Hakki
    Abstract:
    This dissertation studies two different wireless microwave sensing applications in the subjects of environmental monitoring and biomedical devices. The environmental sensing application presents a design of novel wireless sensor node configurations. These nodes are intended to be used specifically in a built environment of railroad track ballast for its health...
    Resource Type:
    Dissertation
    Full Text:
    desired temperature elevation at the tumor location is obtained after 2.5 W RF illumination for 3

  • Wind ramp prediction

    Creator:
    Alexander, Chianna M.
    Abstract:
    The number of wind turbines and wind farms in the Pacific Northwest has increased dramatically in the past six years, which represents a significant amount of electrical generation capacity connected to the public electric grid. However, the variable nature of wind sometimes introduces excessive power, or conversely shortages, in power...
    Resource Type:
    Masters Thesis
    Full Text:
    computation. 24 W W F (k +1 ) W W F (k + 2) ! W W F (k + N H

  • Wideband discrete-time delta-sigma analog-to-digital converters with shifted loop delays

    Creator:
    Meng, Xin
    Abstract:
    Low-distortion architecture is widely used in wideband discrete-time switched-capacitor delta-sigma ADC design. However, it suffers from the power-hungry active adder and critical timing for quantization and dynamic element matching (DEM). To solve this problem, this dissertation presents a delta-sigma modulator architecture with shifted loop delays. In this project, shifted loop...
    Resource Type:
    Dissertation
    Full Text:
    Figure 3.10: PSD of the output signal of the two ΔΣ ADCs W/ and W/O SLD......... 41 Figure 3.11: (a

  • Wideband and high accuracy delta sigma modulation data converter

    Creator:
    Jung, Youngho
    Abstract:
    Nowadays, needs for wideband and high accuracy analog-to-digital converter are increasing rapidly in manifold applications such as wireless communication, digital video and other consumer electronics. Besides, low power consumption is required to have longer battery life in portable systems. CMOS technology scaling and innovative modulator topology make the implementation much...
    Resource Type:
    Dissertation
    Full Text:
    ), (f) Histogram of each integrator output swing after scaling……………..25 3.6 Conventional 11bit SAR

  • Wide-bandwidth, high-resolution delta-sigma analog-to-digital converters

    Creator:
    Zanbaghi, Ramin
    Abstract:
    There is a significant need in recent mobile communication and wireless broadband systems for high-performance analog-to-digital converters (ADCs) that have wide bandwidth (BW>5-MHz) and high data rate (>100-Mbps). A delta-sigma ADC is recognized as a power-efficient ADC architecture when high resolution (>12-b) is required. This is due to several advantages...
    Resource Type:
    Dissertation
    Full Text:
    as active-RC, Gm-C, and passive architectures. DAC )z(H )z(Y )z(R )z(X )s(X T )z(W _ Q

  • Wide stripe, high power diode lasers

    Creator:
    Parson, Kevin J.
    Abstract:
    Typical power outputs of commercially available diode lasers are on the order of 5 milliwatts. This thesis discusses the growth, processing and fabrication of high power (lOO's of milliwatts) diode lasers. Devices were grown by Molecular Beam Epitaxy (MBE) and by Metal Organic Chemical Vapor Deposition (MOCVD). The MOCVD diode...
    Resource Type:
    Masters Thesis
    Full Text:
    . For GaAs the critical optical intensity is about 2-3 x 106 W/cm2 [8]. Increasing the light spot at

  • Wide bandwidth GaAs MESFET amplifier

    Creator:
    Yan, Kai-tuan Kelvin
    Resource Type:
    Masters Thesis
    Full Text:
    Comparison Between GaAs & Si 3 Table 3.1 TriQuint GaAs MESFET L=11im and W=10001..tm depletion mode

  • WebModeler: Modeling Human Hunting Induced Mammal Depletion in the Web

    Creator:
    Thenell, Tasman
    Abstract:
    The Amazon basin is a natural wonder of biodiversity that serves as one of the largest single carbon storage mechanisms in the world. For these reasons, preserving the Amazon and other similar forests is a worthy goal. Protecting these spaces is not possible without understanding the threats facing animal populations...
    Resource Type:
    Honors College Thesis

  • Web-based distributed applications for cytosensor

    Creator:
    Liew, Ji Seok
    Abstract:
    To protect the environment and save human lives, the detection of various hazardous toxins of biological or chemical origin has been a major challenge to the researchers at Oregon State University. Living fish cells can indicate the presence of a wide range of toxins by reactions such as changing color...
    Resource Type:
    Masters Thesis
    Full Text:
    (xporlmeflt Typa: ?*w Remote Uter: 120.193.49184 .J'.'f-ll 'ri.Cfp 'c .UDt-Feh-7(10z3-OOt)7; 4- . 00 l-I

  • Weather influence on Loran-C

    Creator:
    Graulich, Markus Günter
    Abstract:
    The influence of weather on the long range radio navigation system Loran-C was investigated. The variables analyzed over a period of 255 days were: time differences (TDs), TD signal-to-noise ratios, TD standard deviations (measured at a fixed receiver location in Corvallis, Oregon), time interval numbers (TINOs) (measured at the transmitter...
    Resource Type:
    Masters Thesis
    Full Text:
    the three secondary stations W,X and Y, called TDW, TUX and TDY. The raw TD data showed a 28 day

  • Weak-supervision Time-series Analysis

    Creator:
    You, Zeyu
    Abstract:
    Efficient time-series analysis can impact multiple application domains such as motif discovery in gene analysis or music data, extracting spectro-temporal patterns in acoustic scene analysis, or annotating and classifying electrical bio-signals (such as ECG, EEG, and EMG) for medical applications. Time-series analysis involves a variety of tasks. To predict future...
    Resource Type:
    Dissertation
    Full Text:
    for B = 100 and T = 50 (f) on one cluster dataset; and (g) on two cluster dataset with K = 1 and K = 2

  • Wavelet analysis as a signal processing method for multiresolution signal decomposition in natural resources applications

    Creator:
    Tu, De Yun
    Abstract:
    The purpose of this thesis is to apply the wavelet transform WT to multiresolution structures for analyzing the information content of images based on multiresolution signal decomposition of the wavelet representation. The advantage of the wavelet transform is the fact that it uses different building blocks than the Fourier's sines...
    Resource Type:
    Masters Thesis
    Full Text:
    frequency characteristic. Let f(t) be an absolutely integable function, then F(0) = f :fit) C-03 dt 2.1

  • Voltage sag and momentary interruption ride-through for adjustable speed drives

    Creator:
    van Zyl, Annabelle
    Abstract:
    The awareness of electric power quality has increased over the past decade as electronic equipment has become more susceptible to power disturbances. The most disruptive power disturbances are voltage sags and momentary interruptions and their effect on adjustable speed drives (ASDs) is studied in this thesis. Several solutions have been...
    Resource Type:
    Dissertation
    Full Text:
    Comparison 141 Appendix F MATLAB Program Listing for Adaptive PI Controller 145 Appendix G MATLAB Program

  • Voltage controller for a variable speed generation system

    Creator:
    Weigand, Claus H.
    Abstract:
    An important task of a Variable Speed Generation (VSG) system is the capability to maintain and control the terminal voltage at some desired value as determined by the reactive power dispatch strategy.The main objective is to design a sub-optimal fixed-parameter controller in the sense that constraints with respect to practical...
    Resource Type:
    Masters Thesis
    Full Text:
    System Abstract approved: W. Kolodziiej An important task of a Variable Speed Generation (VSG) system

  • Voltage analysis of PWM inverter fed induction motors

    Creator:
    Al-Ghubari, Fahad H.
    Abstract:
    Adjustable Speed Drive (ASD) systems are widely used in industry to effectively improve process efficiency and control. Typically, an ASD system consists of a motor with its speed controlled by a power electronics converter via varying the amplitude and frequency of the input voltage. However, several abnormal insulation failures of...
    Resource Type:
    Masters Thesis
    Full Text:
    -load input power Pnt was 117.46 W. 5 P,., =PJWc + SCL,., (2·1) where SCLnl is the stator

  • VLSI implementation of adaptive BIT/serial IIR filters

    Creator:
    Badyal, Rajeev
    Abstract:
    A new structure for the implementation of bit/serial adaptive IIR filter is presented. The bit level system consists of gated full adders for the arithmetic unit and data latches for the data path. This approach allows recursive operation of the IIR filter to be implemented without any global interconnections, minimal...
    Resource Type:
    Masters Thesis
    Full Text:
    . Consider the formation of a product G of a data word X and coefficient word W, where X and W are of B and C