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The Computer-Aided Generation Of Flow-Tables For Asynchronous Sequential Circuits, Ronald Lee Altman Jan 1968

The Computer-Aided Generation Of Flow-Tables For Asynchronous Sequential Circuits, Ronald Lee Altman

Masters Theses

"One step in the synthesis of asynchronous sequential circuits is the construction of a flow table. This paper discusses the requirements of a computer program to allow on-line generation of flow tables for asynchronous sequential circuits. Such topics as the form of the data entered into the program, the type of terminal required, the routines necessary for the designer to enter and correct data, and the internal data structure are discussed. An algorithm for the generation of these flow tables is also presented"--Abstract, page ii.

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The N-Wire Exponential Transmission Line, Vernon Ray Stanley Jan 1968

The N-Wire Exponential Transmission Line, Vernon Ray Stanley

Masters Theses

"This paper deals with the n-wire exponentially tapered transmission line. A characteristic impedance is defined, and the results of terminating in this impedance are investigated. A very long line and the condition of no reflections are considered, and the conclusions are compared. Finally, three specific 3-wire line problems are worked with a characteristic impedance termination and a unit step input"--Abstract, page ii.

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Design Of A Sequential Detector, Scott William Abel Jan 1968

Design Of A Sequential Detector, Scott William Abel

Masters Theses

"The communication engineer has in the past treated the detection problem from a limited point of view. Detectors have been designed to reach a decision based on a specified number of samples. This approach has proved valuable, but it offers no provisions for an early decision if a conclusion becomes obvious early in the sampling. Neither is there an opportunity for additional sampling if necessary to reach a definite conclusion, because of these limitations it is desirable to find more general detectors. This study looks at a specific statistics (the sign test) and designs a sequential detector to utilize this …

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An Ultrasonic Pulse Generator Using The Transducer As A Frequency Determining Element, Donald E. Watke Jan 1968

An Ultrasonic Pulse Generator Using The Transducer As A Frequency Determining Element, Donald E. Watke

Masters Theses

"This paper describes the development of a method of ultrasonic pulse generation in which the transducer determines the frequency of oscillation. A definite advantage of this method is the ability of the frequency of oscillation to change with changes in the transducer mechanical resonant frequency. This maintains peak efficiency at all times. The method is demonstrated in a small sonar transmitter but could be applied to any area involving driven ultrasonic transducers"--Abstract, page ii.

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The Analysis Of A Phase-Locked Loop By The Functional Expansion Method, Hugh Francis Spence Jan 1968

The Analysis Of A Phase-Locked Loop By The Functional Expansion Method, Hugh Francis Spence

Masters Theses

"The time response of a generalized second order Phase-Locked Loop to step and ramp inputs is described by a functional power, truncated at the third order term. The responses given by the functional power series differs from the analog simulation by less than 6% when the inputs are below 2.0 rad (rad/sec)"--Abstract, page ii.

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Electric Field Investigations And A Model Of Electrical Spraying Of Liquids, Wallace Deshon Jan 1968

Electric Field Investigations And A Model Of Electrical Spraying Of Liquids, Wallace Deshon

Masters Theses

"The equation E = [2 V] [over] [N 1n(4d/N] has been used for determining the electric field at the liquid tip in electrical spraying of liquids. Data were taken at the instant of spraying in an attempt to experimentally verify this equation. The results indicate that the value given by the equation needs to be increased by about 20% in the normal range of operation. A model for the spraying mechanism of the liquid is also proposed"--Abstract, page ii.

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A Formal Description Of The Scc 650 Digital Computer, Hardy J. Pottinger Jan 1968

A Formal Description Of The Scc 650 Digital Computer, Hardy J. Pottinger

Masters Theses

"The requirements of a descriptive language for automated digital computer design are presented. Y. Chu's Computer Design Language is then used to describe the logic of the SCC 650, a small general-purpose digital computer at UMR. Chu's language is found to be the best language available to the designer for both documentation and automatic translation into Boolean Equations"--Abstract, page ii.

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Waveform Distortion Caused By A Plasma Sheath, James R. Carl Jan 1968

Waveform Distortion Caused By A Plasma Sheath, James R. Carl

Masters Theses

"A short burst of electromagnetic energy that propagates into and through a plasma medium can react with the plasma medium in several different ways depending on both the characteristics of the plasma and of the pulse. This thesis derives approximations for the plasma transfer function at low pressure (high altitude) and at high pressure (low altitude). The mechanisms that can change the shape of a waveform, in general, are dispersion and breakdown. dispersive distortion at low altitude is shown to exist for electron concentrations well above the resonant concentration for plasma sheaths that are thin compared to one wavelength. Several …

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Solid State Squib Simulator, Ernest Paul Lee Jan 1968

Solid State Squib Simulator, Ernest Paul Lee

Masters Theses

"The simulators described in this paper allow checkout of the electrical control circuitry of pyrotechnic and related devices where the actual testing of the devices would be destructive. A simulator is described that is superior to the units now available for test purposes. Solid state components are used exclusively and hence it is very light weight and reliable. It is portable and requires no external power for indication of the control circuitry performance. The simulator presents a load that is adjustable between one and five ohms for a controlled length of time from one to one hundred milliseconds. Transients will …

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Synchronization Of Pulse Code Modulation Telemetry, Lawrence J. Mueller Jan 1968

Synchronization Of Pulse Code Modulation Telemetry, Lawrence J. Mueller

Masters Theses

"Pulse Code Modulation (PCM) is one of the most widely utilized radio telemetry techniques for the recovery of test data from aerospace vehicles. Synchronization of the receiver with the transmitted data is perhaps the prime requisite of a PCM telemetry system. In this paper the frame synchronization process is analyzed by developing equations which define the three modes of synchronizer operation (SEARCH, VERIFY, and LOCK) in terms of the relative probabilities of operation. The criteria employed to optimize the synchronization process are the mean time to acquire true synchronization, the probability of true synchronization after verification of the synchronization decision, …

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Scattering Parameter Measurements And Amplifier Design, Thomas J. Herrick Jan 1968

Scattering Parameter Measurements And Amplifier Design, Thomas J. Herrick

Masters Theses

"The scattering parameter formulation in describing the small-signal operation of an active two-port device is developed. The inherent advantages of measuring the scattering parameters at UHF frequencies and the clear insight into the design problem are demonstrated. Some of the practical difficulties in a typical design problem are also considered"--Abstract, page ii.

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Measurement Of Demagnetizing Factor Of Ring-Core, Subhashchandra Chimanlal Patel Jan 1968

Measurement Of Demagnetizing Factor Of Ring-Core, Subhashchandra Chimanlal Patel

Masters Theses

"A method has been presented to measure the demagnetizing factor of ring-cores. First the incremental apparent permeability and the incremental true permeability were measured at different degrees of saturation and then the demagnetizing factor was determined from those results. The cores used were tape would ring-cores of mean length of 8.0 cm. The method was found suitable for cores with 1/4 mil or thicker tape, but was in question for the 1/8 mil tape core tested"--Abstract, page ii.

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Radiation And Annealing Characteristics In Neutron Bombarded Transistors Operated In The Inverse Configuration, Lo-Soun Su Jan 1968

Radiation And Annealing Characteristics In Neutron Bombarded Transistors Operated In The Inverse Configuration, Lo-Soun Su

Masters Theses

"When operating a silicon planar epitaxial transistor in the inverse configuration (i.e., with the emitter functioning as a collector and the collector functioning an emitter) the bulk space-charge volume of the new "emitter-base" junction is increased by a factor of 26.5 times that of the normal emitter-base junction. The carrier concentration in the new "emitter" is decreased by five orders of magnitude from that of the normal emitter, thus making it easier to investigate the effects of neutron radiation on the space-charge region and at the surface. Experiments using biasing of the new "emitter-base" junction during neutron radiation to change …

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The Design Of A Hybrid Computer System, James Joseph Becker Jan 1968

The Design Of A Hybrid Computer System, James Joseph Becker

Masters Theses

"Three typical hybrid computers in industry and educational institutions are presented. The hybrid computer designed and built at the University of Missouri at Rolla consists of an SCC-650 digital computer, a TR-48 analog computer, and a hybrid interface. The interface permits the digital computer to control the modes of operation on the analog computer. There are also 9 multiple-pole relays on the interface that can be controlled by the digital computer. A 320 hold removable patchboard is included in the interface. There are 40 trunks lines from the analog computer that are present on the patchboard. The 4 digital-to-analog channels …

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Thermal Runaway In Power Transistors, Jerry H. Lee Jan 1968

Thermal Runaway In Power Transistors, Jerry H. Lee

Masters Theses

"Considerable work has been done on the theory of thermal runaway and the relationship between transistor junction temperature and collector power dissipation. The first part of this thesis is a review of literature. An equation for the normalized junction temperature and its peak value is developed. From this equation, the junction temperature at the thermal runaway point for a given maximum power dissipation could be determined. The second part of this thesis is experimental. The author examined the thermal runaway points for eight different transistors in the basic common emitter class A circuit which operated under no signal DC conditions"--Abstract, …

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Impulse Response Of Rc Exponential Lines, Oscar Gojon Jan 1968

Impulse Response Of Rc Exponential Lines, Oscar Gojon

Masters Theses

"This thesis presents an application of the analysis of the n-wire exponential line to the case of the 3-wire RC exponential line terminated in its characteristic impedance, and to the 2-wire exponential line with open and short circuit terminations. These lines are excited with Δ-function voltage generators, and the corresponding impulse responses are obtained"--Abstract, Page ii.

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Distributed Parameter Rc Network Analysis, Robert C. Peirson Jan 1968

Distributed Parameter Rc Network Analysis, Robert C. Peirson

Doctoral Dissertations

"Methods of analyzing uniform and tapered distribute [sic] parameter RC networks are reviewed and correlated in this dissertation. Multilayer networks and simple three layer networks are considered. Analogies between two-wire transmission line theory and multilayer distributed network theory are developed, i.e., standing wave and traveling wave concepts. An accurate computer-aided steady state analysis procedure is presented which has a solution accuracy that can be determined prior to actual analysis computations. The impulsive response of the uniform RC network is investigated with the goal of measuring the network's parameters. Procedures to determine the parameters R and C of a uniform RC …

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Recombination Statistics For The Neutron-Induced Base Current Component, Ming-Chwan Chow Jan 1968

Recombination Statistics For The Neutron-Induced Base Current Component, Ming-Chwan Chow

Doctoral Dissertations

"This paper presents a derivation of the recombination statistical model for the neutron-induced base current component. The derivation was based on the assumptions: 1) the current equation for the induced current component developed by Goben is valid; 2) the Shockley-Read-Hall statistics for holes and electrons are applicable; and 3) the recombination statistics derived by Sah, Noyce and Shockley, for sites in the bulk space-charge region are valid. Several examples were presented to emphasize accuracy of this derived model for predictions. This paper shows that the recombination process may be described by a mathematical model, recombination statistics which depend on the …

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A Direct Method Of Measuring Stray Load Loss In Dc Machines, Kanaiyalal R. Shah, George Mcpherson Jan 1968

A Direct Method Of Measuring Stray Load Loss In Dc Machines, Kanaiyalal R. Shah, George Mcpherson

Electrical and Computer Engineering Faculty Research & Creative Works

Stray load loss in dc machines is denned as the difference between the actual loss under load and the well-recognized loss. This paper describes a simple, reliable, and direct method of measuring this loss by means of a proposed short-circuit test with a correction factor for uncompensated-type dc machines. It also describes the sources and components of stray load losses as they occur under short-circuit test. Copyright © 1968 by The Institute of Electrical and Electronics Engineers, Inc.

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A Simple Design Algorithm For Synthesis Of Multilevel Combinational Networks, James H. Tracey Jan 1968

A Simple Design Algorithm For Synthesis Of Multilevel Combinational Networks, James H. Tracey

Electrical and Computer Engineering Faculty Research & Creative Works

An algorithm is presented for the synthesis of combinational networks with a constrained arrangement of ANDS, ORS, NANDS, NORS, and inverters. The algorithm is easily presented to students in an introductory logic design course and has considerable application in modern practical logic design. Many texts available for a first course in logic design give very limited practical guidance for synthesis of networks under constraints outlined here. It is suggested that the algorithm presented here be furnished as supplementary material in the introductory course. Copyright © 1968 by The Institute of Electrical and Electronics Engineers, Inc.

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A Novel Method For Solving The Uniform Distributed Network Analysis Problem, Robert C. Peirson, Edward C. Bertnolli Jan 1968

A Novel Method For Solving The Uniform Distributed Network Analysis Problem, Robert C. Peirson, Edward C. Bertnolli

Electrical and Computer Engineering Faculty Research & Creative Works

An application of the Laplace transform method of Ogata to the solution of the uniform distributed network analysis problem is described. Copyright © 1968 by The Institute of Electrical and Electronics Engineers, Inc.

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Recombination Statistics For Neutron Bombarded Silicon Transistors, M. C. Chow, J. L. Azarewiczt, C. A. Goben Jan 1968

Recombination Statistics For Neutron Bombarded Silicon Transistors, M. C. Chow, J. L. Azarewiczt, C. A. Goben

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents a recombination statistical model for the neutron-induced base current component reported previously. The derivation was based on the following: 1) the current equation for the induced current component developed previously; 2) the Shockley-Read-Hall statistics for holes and electrons; and 3) the recombination statistics derived by Sah, Noyce and Shockley for sites in the bulk space-charge region. The recombination statistics model depends on the diffusion potential, the junction voltage, the activation energy, temperature, and the ratio of capture cross-sections for holes and electrons. The utility of such a recombination statistical model is illustrated by using measured parameters to …

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Radiation And Annealing Characteristics Of Neutron Bombarded Silicon Transistors, L. S. Su, G. E. Gassner, C. A. Goben Jan 1968

Radiation And Annealing Characteristics Of Neutron Bombarded Silicon Transistors, L. S. Su, G. E. Gassner, C. A. Goben

Electrical and Computer Engineering Faculty Research & Creative Works

Operating a silicon planar epitaxial transistor in the inverse configuration allows one to demonstrate clearly the importance of the neutron-induced base current component and its degradation of the emitter efficiency, and, because of the much larger depletion layer, to compute a volume dependent damage constant applicable to all silicon p-n junctions. The importance of minimizing the absolute change versus relative change in radiation hardening studies is clearly illustrated. Surface effects were found to be significant for transistors mounted in gas-filled cans. The diffusion potential was predicted, on theoretical grounds, to vary with neutron fluence, and the theory was experimentally confirmed. …

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Neutron Radiation Damage In Silicon Transistors, C. A. Goben, F. M. Smits, J. L. Wirth Jan 1968

Neutron Radiation Damage In Silicon Transistors, C. A. Goben, F. M. Smits, J. L. Wirth

Electrical and Computer Engineering Faculty Research & Creative Works

In the investigation of base and collector current as a function of the emitter-to-base voltage, previous studies have shown that neutron-induced base current has components originating in the emitter space charge region as well as the neutral base region. This study shows that while the low injection level neutron-induced base current is dominated by the space charge component, the high injection behavior appears to be controlled by recombination in the neutral base region. Additional experiments performed in special tetrode transistors and van der Pauw-type samples indicate that changes in collector current are dominated by recombination in the neutral base, while …

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Design Of Truncated Sequential Tests For Rapidly Fading Radar Targets, Norval D. Wallace Jan 1968

Design Of Truncated Sequential Tests For Rapidly Fading Radar Targets, Norval D. Wallace

Electrical and Computer Engineering Faculty Research & Creative Works

Curves and equations are presented from which the exact performance of truncated sequential tests can be determined for one important case: the biased square-law detector for the detection of rapidly fading targets. The method of generating functions is used to derive probability distributions for sample size. It is shown how these probability distributions can be used to determine truncation errors and the effects of multiple-resolution elements. Sample calculations are performed to determine the effects of a particular truncation procedure. Copyright © 1968 by The Institute of Electrical and Electronics Engineers, Inc.

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Electric Field Investigations And A Model For Electrical Liquid Spraying, Wallace E. Deshon, Ralph S. Carson Jan 1968

Electric Field Investigations And A Model For Electrical Liquid Spraying, Wallace E. Deshon, Ralph S. Carson

Electrical and Computer Engineering Faculty Research & Creative Works

The equation generally used for determining the electric field at the liquid tip in electrical spraying of liquids was originally derived for determining the electric field around a metal tip in the extraction of electrons from metals. In the present paper experimental data were taken at the instant of spraying to determine the validity of using this equation for liquid tips. the results indicate that the value of electric field given by this equation needs to be increased by about 20% in the normal range of operation. A model for the spraying mechanism of the liquid is also presented. © …

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Signal Theoretic Characterization Of A Function Using Positive Exponential Basis Functions, James Julius Baremore Jan 1968

Signal Theoretic Characterization Of A Function Using Positive Exponential Basis Functions, James Julius Baremore

Doctoral Dissertations

"A signal theory characterization of a time function or signal is a representation of the function throughout a sample interval by an orthogonal basis function expansion. The characterization described here obtains the coefficients in the expansion by processing the input waveform, in real time, through a system of three terminal passive RC filters. The outputs of the filters are sampled periodically and the coefficients of the basis function expansion in that interval are related to these values. The basis functions result from an exponential transformation applied to the Legendre polynomials and are orthogonal in time over the sample interval. The …

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A Method For The Calculation Of The Electric Microfield Distribution In A System Of Charged Hard Spheres, Ronald M. Flegal Dec 1967

A Method For The Calculation Of The Electric Microfield Distribution In A System Of Charged Hard Spheres, Ronald M. Flegal

Masters Theses

No abstract provided.

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Alternating Current Method Of Measuring The Electrical Conductivity Of Dielectric Liquids, Henry E. Fischer, Ralph S. Carson Dec 1967

Alternating Current Method Of Measuring The Electrical Conductivity Of Dielectric Liquids, Henry E. Fischer, Ralph S. Carson

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

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A Study Of A Differential Equation Found In Wave Propagation And Scattering Theory, Larry W. Thacker Oct 1967

A Study Of A Differential Equation Found In Wave Propagation And Scattering Theory, Larry W. Thacker

Electrical and Computer Engineering ETDs

The study of a differential equation that is found in the study of the scattering of waves from an inhomogeneous media and in atomic collision theory is presented. Several integral formulations for obtaining approximations to the solution are discussed and studied. Means of determining the phase shift in electron scattering problems are presented, and two methods for obtaining the reflection and transmission coefficients are developed and discussed.

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