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Filtering by: Creator Campbell, H. F. Remove constraint Creator: Campbell, H. F. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • A parametric analysis of the capabilities of undersea acoustic imaging

    Creator:
    Calligan, C. C.
    Abstract:
    The feasibility of utilizing acoustic imaging techniques for improving the undersea viewing capability of small submersibles is investigated. The limiting values of major parameters in acoustic imaging systems are established and graphs which illustrate the parametric relationships are presented. A series of sample calculations illustrate how the graphs can be...
    Resource Type:
    Masters Thesis
    Full Text:
    -invariant, then its response r(t) to signal f(t) is given by r(t) = f(t) * h(t) where * denotes the

  • Design of a mini-computer controlled digital integrated circuit tester

    Creator:
    Fasang, Patrick Pad, 1941-
    Abstract:
    The purpose of the thesis is to design, construct, program, and test an automatic integrated circuit test system. The class of integrated circuits tested was restricted to digital integrated circuits. The general concept of testing a digital integrated circuit is based on the truth table of that circuit. A combination...
    Resource Type:
    Dissertation
    Full Text:
    . James H. Herzog. The author also would like to thank Mr. Arthur Neely and Mr. Charles Elliot of the

  • Investigation of electric field-induced optical absorption changed in CdS

    Creator:
    Shimoda, Raynor Yoichi
    Abstract:
    The feasibility of using the Franz-Keldysh effect in practical light intensity controlling devices was investigated. Reverse-biased diodes made from CdS were implemented to obtain high electric fields necessary for the effect. The three types of diodes studies were: MIS, metal-semiconductor barrier, and p⁺-n heterojunction. An expression for the change in...
    Resource Type:
    Dissertation
    Full Text:
    the materials, experiments are performed at low temperatures. The results of a few selected .05 f

  • An eraseable MOS read-only memory

    Creator:
    Johnson, Norman Leland
    Abstract:
    A non-volatile electrically alterable read-only memory using an MOS field effect transistor with a threshold voltage which depended upon the position of ionic charges for its memory was fabricated. The conventional silicon dioxide layer was replaced by a composite layer consisting of thermal silicon dioxide, electron beam evaporated aluminum oxide,...
    Resource Type:
    Dissertation
    Full Text:
    _ - - _ ------ F r x3 x4 Substrate o Y2 L ..; o 4 1 U 4 -1 i 11 -I r -I .. _1 4- -i -1 I--4 J

  • A computer controlled robot analyzer for in situ water quality monitoring

    Creator:
    Birch, Kenneth Norman
    Abstract:
    A new, computer oriented system for automatic, in situ monitoring of water quality is proposed which makes full and effective use of modern computer technology. The main objective of this thesis work was the development of the concept for in situ computer controlled experimenting as a reasonable and effective means...
    Resource Type:
    Masters Thesis
    Full Text:
    contributed are gratefully acknowledged. My thanks to Dr. H. Freund for reviewing my thesis and helping me

  • The identification of Dungeness crab from the power spectral density function of their acoustic signature

    Creator:
    Eghbali, Hassan J.
    Abstract:
    The power spectral density of the acoustic signature of Dungeness crab was calculated by the use of digital computer. The signal produced by the Dungeness crab was an analog signal. Therefore a conversion of the signal from analog to digital was necessary. This was done by sampling the acoustic signature...
    Resource Type:
    Masters Thesis
    Full Text:
    BETWEEN THE TWO EOF 'S CC OF A DOUBLE EOF MARK JULY 15,1971 SUBROUTINE P OS IT (H I) 1 KF:0 2 J 4 3 I F

  • 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

  • Radiation losses in microstrip circuits

    Creator:
    Lo, Sui-Sang
    Abstract:
    The purpose of this study is to investigate radiation losses in microstrip circuits. Expressions are derived to evaluate the radiation resistances (or conductances) for single terminated, open and short-circuited lines. The quality factor Q of open and short-circuited stubs is evaluated. An analytical procedure is formulated to evaluate the radiation...
    Resource Type:
    Masters Thesis
    Full Text:
    charge of major Redacted for privacy Head of Department of electrical F Computer Engineering Redacted

  • 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:
    . Saunders and H. F. Davis for supervising his doctoral program, Due to the interdisciplinary nature of this

  • Pattern recognition of speech using hybrid computer feature extraction

    Creator:
    Herr, Alan Jack
    Abstract:
    Most technological problems associated with man-machine conversations have been solved and are well documented in both the contemporary technical and lay literature. The major remaining technological problem is the real time conversion of a human's vocal uterances into a "written" phoneme sequence representing the information content of speech. The work...
    Resource Type:
    Dissertation
    Full Text:
    ". Stops p, t, Fricatives f, G, h Figure 1-4. Electronic binary selection speech recognition system