Index Catalog // ScholarsArchive@OSU

The design and evaluation of an electronic estimator of probability density distributions

Creator:: Senk, Frederick Martin
Abstract:: This thesis discusses the design and evaluation of an instrument that can estimate the probability density distributions of bandlimited, aperiodic electrical phenomena. This estimator can obtain the probability density estimates of signals that are contained within the frequency range of 100 cps. to 20 kcs. However, the basic design logic...
Resource Type:: Masters Thesis

The Galaxy Computer control system

Creator:: Mesecar, Roderick S.
Abstract:: The logic control system of a computer automatically sequences logic operations which direct how and when memory stored instructions and data are processed in the digital registers. This thesis contains circuit schematics and test results of a nanosecond response logic - control system for the Galaxy Computer. The circuit designs...
Resource Type:: Masters Thesis

A mathematical method of evaluating the reliability of electronic equipment

Creator:: Lindquist, Claude S.
Abstract:: Reliability, the probability that a system will not fail but will perform correctly at least until some arbitrary time, is becoming an increasingly important concept in electronic system design. This probability is evaluated using probability density functions which are obtained analytically by forming mathematical expressions describing the failure distributions of...
Resource Type:: Masters Thesis

Design of an electrical analog for spherical wave propagation in solid elastic media

Creator:: Papageorge, George Elefterios
Abstract:: With the advent of underground testing, the study of the propagation of seismic signals has become of great importance. This thesis investigates the design of electrical analogs to represent the propagation of seismic waves. The analogs developed allow for the study of the effects of variations in the characteristic constants...
Resource Type:: Masters Thesis

The field-effect transistor as a medium-speed, low-level chopper

Creator:: Rux, Peter Turner
Resource Type:: Masters Thesis

Transmission line tower location on non-flat terrain by digital computer methods

Creator:: Phaloprakarn, Somkiet
Abstract:: A method of locating electric transmission line towers using ground survey data in a digital computer program is presented in this thesis. The towers are located for maximum spacing subject to the constraints of available tower heights, forbidden ground areas, minimum ground clearance, and specified conductor tensions. The digital method...
Resource Type:: Masters Thesis

Thermal growth and chemical etching of silicon dioxide film

Creator:: Mai, Chao Chen
Abstract:: Some important factors that affect the dimensional control of oxide films on silicon were studied. Both N- and P-type silicon with resistivities in the range of 0.014 to 200 ohm-cm and a (111) surface orientation were employed in this experiment. The etching rates of silicon dioxide in hydrofluoric acid (111)...
Resource Type:: Masters Thesis

A method for analysis of direct-coupled transistor amplifiers

Creator:: Bishop, Stanley Robert
Abstract:: The demand for transistor circuitry to perform within more exacting specifications has created the need for a method to accurateIy predict transistor circuit performance. A method utilizing an electronic digital computer for the analysis of direct-coupled transistor amplifiers is explained in this paper. The dc bias levels and the mid-band...
Resource Type:: Masters Thesis

Multivariable model for optimizing the percussive welding of aluminum

Creator:: Comstock, James Martin
Abstract:: A multivariable model describing the system response (weld tensile strength of 6061-T6 aluminum) of a percussive stud welding system as a function of five natural (external) system variables was developed. The five natural system variables were 1) static weight of the drop-shaft (W), 2) initial stud base height (H₀), 3)...
Resource Type:: Masters Thesis

A vector electrocardioscope system for clinical studies

Creator:: Petersen, Walter Anton
Abstract:: This paper discussed the human electrocardiogram, the instrumentation used to graphically record it, and the design and performance of a specialized system for vector cardiography: the Vector Electrocardioscope (VECS) System. The introduction reviews in considerable detail the pertinent known physiology of the heart, especially the electrophysiology responsible for the genesis...
Resource Type:: Masters Thesis

Logarithmic generation by binary decoding

Creator:: Hill, James Carver
Abstract:: Instruments which combine the features of a digital-to-analog conversion and a linear-to-logarithmic scale change usually perform the digital-to-analog conversion first. These instruments are accurate to within five or ten percent over ranges of five or six decades. This thesis presents a method which uses combinatorial logic to perform the linear-to-logarithmic...
Resource Type:: Masters Thesis

An electrolytic tank analog for myoelectric surface potentials

Creator:: Churchill, Frank Tefft
Abstract:: It was observed that certain myoelectric surface potentials are of a pulse nature. The pulses have nearly the same exact waveshape, but are asynchronously repetitive. Physiological evidence indicated that myoelectric pulses are concurrent with the activity of a small unit of organized muscle fibres (motor unit). The electrical activity of...
Resource Type:: Masters Thesis

Control circuitry for a telemetry system

Creator:: Hespelt, George Gordon
Abstract:: This thesis describes the control circuitry for a telemetry system developed to report hydrologic information from remote locations. The multiparameter, on-call system operates on a single frequency. Each remote station responds to a predetermined number of pulses from the master station. Data is transmitted by pulse- duration modulation. In the...
Resource Type:: Masters Thesis

Optimum transient response of a Kaplan turbine generator system determined from mathematical models

Creator:: Meloy, Glenn R.
Abstract:: This thesis proposes a criteria for the evaluation of those variable parameters that influence the response of a hydroelectric generator driven by a hydraulic turbine of the Kaplan type. It is considered a requirement that a unit must be stable when supplying an isolated load and it is assumed that...
Resource Type:: Masters Thesis

Metal-to-gallium arsenide contact evaluation using a VHF bridge technique

Creator:: Armantrout, G. A.
Abstract:: In this paper, the theory of metal-semiconductor contacts was applied to metal contacts on gallium arsenide. A model was discussed which proposed that the contact resistance was due to a highly resistive region between the metal and the semiconductor. In order to evaluate this resistance, a technique using a VHF...
Resource Type:: Masters Thesis

Two-integrator detector for known-signal-in-noise identification

Creator:: Albright, Robert James
Abstract:: This thesis discusses the design and evaluation of an instrument that can detect known signals in noise. This detector uses two integrators to sense a difference in the received signal between half-cycles of the known signal. The detector is useful for sensing signals in the approximate frequency range of 100...
Resource Type:: Masters Thesis

Determination of the maximum loading of parallel connected three-phase transformers with unequal impedance

Creator:: Puipunthavongth, Sawasdi
Abstract:: The comparative values of impedance and resistance to reactance ratios are important parameters in determining the load capacity of an interconnection of power transformer, called a bank. The full design capabilities of parallel or three-phase connected transformers cannot be utilized unless the following constraints are applied. 1. All transformer voltage...
Resource Type:: Masters Thesis

Diffusion of boron and phosphorus in silicon

Creator:: Ou, Teh Ming
Abstract:: This thesis presents some experimental results for producing controlled PN and NPN diffused structures in silicon by varying the strength of the diffusion sources. Boron diffusions were carried out in a N₂ atmosphere at 1200°C with 10%, 20%, 30% and 40% B₂0₃ in silicic acid as sources. Phosphorus diffusions were...
Resource Type:: Masters Thesis

Percussion welding force, temperature and time relationships for welding 6061-T6 aluminum

Creator:: Eggers, Johannes Lyle
Abstract:: The force, temperature, and time relationships were investigated by using oscilloscope measurement techniques. Force was measured using a strain gage and the dynamic response recorded with a polaroid oscilloscope camera. Temperature was measured with a tungsten-rhenium thermocouple and recorded in the same manner. Residual stress measurements were made to determine...
Resource Type:: Masters Thesis

Signal transfer and gain in magnetic-core circuits

Creator:: Landgraf, Richard Clark
Abstract:: Because of its characteristics, the square-loop magnetic core can be used as the basic device in a logic system. A magnetomotive force (mmf) which is below the threshold mmf of such a core will cause a negligible, nonpermanent amount of flux change in the core; and information signals can be...
Resource Type:: Masters Thesis

Superconductive A.C. losses as a function of an applied steady magnetic field in type II superconductors

Creator:: Siddall, Mark Bernard
Abstract:: Measurements were made of the energy loss in a superconducting wire coil subjected to an axial magnetic field consisting of a ripple field superimposed on a steady field. The loss was measured calorimetrically using a sonic thermometer consisting of a resonance tube filled with helium gas in thermal contact with...
Resource Type:: Masters Thesis

The development of the theory of metal rolling and its application to rolling mill control

Creator:: Sloane, John Hunt
Abstract:: The relationships of the variables of a process to be controlled are expressed in a mathematical model of the process. In the case of the rolling of metal the process is described by the physics of the deformation of the metal in the roll gap. In developing the theory of...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The design and evaluation of an electronic estimator of probability density distributions

The Galaxy Computer control system

A mathematical method of evaluating the reliability of electronic equipment

Design of an electrical analog for spherical wave propagation in solid elastic media

The field-effect transistor as a medium-speed, low-level chopper

Transmission line tower location on non-flat terrain by digital computer methods

Thermal growth and chemical etching of silicon dioxide film

A method for analysis of direct-coupled transistor amplifiers

Multivariable model for optimizing the percussive welding of aluminum

A vector electrocardioscope system for clinical studies

Logarithmic generation by binary decoding

An electrolytic tank analog for myoelectric surface potentials

Control circuitry for a telemetry system

Optimum transient response of a Kaplan turbine generator system determined from mathematical models

Metal-to-gallium arsenide contact evaluation using a VHF bridge technique

Two-integrator detector for known-signal-in-noise identification

Determination of the maximum loading of parallel connected three-phase transformers with unequal impedance

Diffusion of boron and phosphorus in silicon

Percussion welding force, temperature and time relationships for welding 6061-T6 aluminum

Signal transfer and gain in magnetic-core circuits

Superconductive A.C. losses as a function of an applied steady magnetic field in type II superconductors

The development of the theory of metal rolling and its application to rolling mill control

Limit your search

Academic Affiliation

Advisor

Commencement Year

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search