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Filtering by: Creator Daube, B. C. Remove constraint Creator: Daube, B. C. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • 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:
    Secondary TINO for secondary W T Temperature CI< or °C] Tab propagation Time from location a to location b

  • Failure analysis of Muller-C-element

    Creator:
    Chew, Oonpin
    Abstract:
    Asynchronous circuits have recently been a breakthrough in many high performance computers. The concept of asynchronous circuits which started a long time ago has slowly grasped the attention of many designers. The Muller-C-element is an important control block in many asynchronous designs and therefore it is important to understand some...
    Resource Type:
    Masters Thesis
    Full Text:
    Appendix A Hspice netlist for Ivan Sutherland's Muller-C-element 69 Appendix B Hspice output file for Ivan

  • LORAN-C receiver position estimation from noisy time-difference data

    Creator:
    Weisshaar, Andreas
    Abstract:
    In order to analyze the accuracy of the navigation system LORAN-C, we have collected time - difference (TD) data from the U.S. west coast chain (9940) at a fixed receiver location (Corvallis, Oregon). The analysis of the TD data shows an unexpected high correlation between the TDs as well as...
    Resource Type:
    Masters Thesis
    Full Text:
    correlation coefficients for 1000-sample sets (a) R[W,X] (b) R[W,Y] (c) R[X,Y] 11 2.6 Path geometry for US

  • Analog integrated circuit design using GaAs C-HFETs

    Creator:
    Gupta, Rakhee
    Abstract:
    Present day data processing technology requires very high speed signal processing and data conversion rates. One such application which requires high speed is switched capacitor circuits used in Sigma-Delta modulators. A major active component of switched capacitor circuits is the monolithic operational amplifier(opamp). Because of the relatively poor speed performance...
    Resource Type:
    Masters Thesis
    Full Text:
    Analog Integrated Circuit Design using GaAs C-HFETs AN

  • A DC-DC converter architecture for low-power, high-resistance thermoelectric generators for use in body-powered designs

    Creator:
    Miller, Brian A.
    Abstract:
    This thesis presents a low power DC-DC converter suitable for harvesting energy from high impedance thermoelectric generators (TEGs) for the use in body powered electronics. The chip has been fabricated in a 130nm CMOS technology. To meet the power demands of body powered networks, a novel dual-path architecture capable of...
    Resource Type:
    Masters Thesis
    Full Text:
    . 4(b) and Fig. 4(c) shows the converter operating in the secondary mode. DriveN DriveP

  • Linearizing techniques for voltage controlled oscillator based analog to digital converters

    Creator:
    Rao, Sachin B.
    Abstract:
    Voltage controlled oscillator (VCO) based ADC is an important class of time-domain ADC that has gained widespread acceptance due to their several desirable properties. VCO-based ADCs behave like an open-loop continuous time ΔΣ modulator and achieve excellent resolution by first order noise shaping the quantization error. However, the SNDR of...
    Resource Type:
    Dissertation
    Full Text:
    ϕS ϕS ϕC ϕC ϕR VIN CLK DOUT ϕS, ϕC ϕD, ϕR CI t t Counter Value VCI ϕD (a) (b) VCI ϕR

  • Hybrid computer simulation of wind-driven ocean currents

    Creator:
    Vithayathil, Francis Joseph
    Abstract:
    A simulation method using a hybrid computer is developed in this dissertation to enhance the study of wind-driven ocean circulation. The simulation is based on the mathematical model developed by Ekman. Pure digital simulation is not economical due to excessive computer time required for the solution of the partial differential...
    Resource Type:
    Dissertation
    Full Text:
    OCEAN CURRENTS Abstract approved: Redacted for privacy Associate Professor Gerald/C. Alexander A

  • A model of the likelihood of stimulation or tolerance of the B lymphocyte

    Creator:
    Peterson, Patricia A.
    Abstract:
    The B lymphocyte is the immune cell responsible for the production of antibodies. It has receptor molecules on its surface which bind to a molecule known as an antigen. The antigen either stimulates the cell to produce antibodies or tolerizes it so that it is unable to produce antibodies. It...
    Resource Type:
    Masters Thesis
    Full Text:
    the B Lymphocyte AN ABSTRACT OF THE THESIS OF Patricia Peterson for the degree of Master of Science

  • Single-Ended Techniques for Delta-Sigma Modulators

    Creator:
    Lee, Calvin Y.
    Abstract:
    This work presents a high-resolution Delta-Sigma ADC which combines the use of the pseudo-pseudo-differential noise filtering technique with single-ended ring amplifier based integrators. The pseudo-pseudo-differential noise filtering technique utilizes single-ended circuits while maintaining the even-order rejection found in fully-differential structures which alleviates, in the active analog blocks, the need for...
    Resource Type:
    Dissertation
    Full Text:
    a) b) c) Vn(t0) C2B C2Aφ2 φ1C1Bφ2 φ1 VCM C1Aφ1 φ2 φ1 φ2,Adv φ2 φ1,Adv VCM VOUT VIN

  • Liquid crystal thermography : a new system for breast cancer detection

    Creator:
    Bichara, Kamal Fouad
    Abstract:
    A liquid crystal thermographic technique was developed for application to several problems in clinical medicine and physiology. The procedure was inexpensive, rapid, simple, versatile and acceptable to patients. Investigators in the past have used cholesteric liquid crystals for thermography but their use was limited to research in the medical field...
    Resource Type:
    Dissertation
    Full Text:
    . Liquid crystal thermograms showing (a) vascular thermogram (b) avascular thermogram (c) mottled