Engineering Commons^™

Equations Of State For Propyne, Thomas Marshall Stark

Theses

P-V-T data for propyne have been fit using the Martin-Hou and the Benedict-Webb-Rubin equations of state. The Martin-Hou equation, with its constants calculated from the critical properties and a vapor pressure point for the gas, fit up to 1.1 to 1.5 times the critical density with deviations of less than 1%. The Benedict-Webb-Rubin equation, with its constants calculated by the method of Joffe, resulted in greater deviations in the low pressure region than did the Martin-Hou equation; however, it also provided a better approximation of the data at high pressures and lower temperatures. The best over-all fit was obtained using …

Electromotive Deposition, Storage And Dissolution Of Active Hydrogen Upon Carbon Electrodes, Joseph Gabriel Di Masi

Theses

The electromotive deposition, storage and dissolution of hydrogen upon carbon electrodes having real surface areas varying from one meter²/ gram to one-hundred ten meters²/ gram vas inves-tigated.

It has been found that a correlation exists between hydrogen storage and real area of the inner electrode. However, it has been further shown that storage of electromotive hydrogen is only for short periods of time, that is, several hours.

The Corrosiveness Of Phenols, Edgar George Kaup

Theses

The effects of oxidizing agents, heat, light, and metallic catalysts on coloration in phenols is discussed, using data collected from the literature. The oxidation reaction is concluded to be the con-trolling factor in coloration. Corrosion data from laboratory experiments, field tests, and operating plants is presented for metals and non-metals in concentrated phenolic systems.

A Study Of Continuous Photochemical Hydrolysis, Robert Parlante, Theodore Arthur Gropler

Theses

In this investigation, the ultraviolet absorption spectra and the batch photochemical hydrolysis of monochloroacetic and monobromoacetic acid, and their potassium and sodium salts, have been measured and compared with those existing in the literature.

The continuous photochemical hydrolysis of sodium chloroacetate has been investigated for the first time. The continuous photolysis of uranyl oxalate was investigated and used as a chemical actinometer.

Gaseous material in the reactant feed has been found to be important at low flow rates.

Whole-Field Methods In The Measurement Of Post-Elastic Surface Strains, Siew Poh Chan

Mechanical Engineering ETDs

Several whole-field methods were studied and a new technique was developed for the purpose of measuring post-elastic surface strains in metals. Critical evaluation was given to the following experimental techniques: the moire effect and the birefringent coating.

The Effects Of An Epoxy (Epocast 546) Upon The Tensile And Compressive Properties Of Portland Cement Concrete, Alvy C. Jackson

Civil Engineering ETDs

Although the behavioral pattern of plain concrete in compression is fairly consistent, its tensile properties leave much to be desired. The laboratory investigation described here was an attempt to increase the tensile property of plain concrete by adding an epoxy resin compound to the mixture. The investigation included tests for both compressive and tensile strengths of the mixtures that were considered. The compressive strength tests were included to determine what effect, if any, the attempt to increase the tensile property had on compressive strength.

Transient Response Of Linear Undamped And Lightly Damped Lumped Spring-Mass Systems By Graphica Techniques, Richard O. Brooks

Mechanical Engineering ETDs

Responsive motions of linear undamped and lightly damped lumped spring mass systems subjected to transient inputs can be determined by several methods. All these methods require solving of the differential equation in some manner. Practically all techniques for solving the differential equations involve higher mathematics.

Wave Propagation Past A Change In Cross-Section, Samuel A. Cone

Electrical and Computer Engineering ETDs

This thesis was undertaken to accomplish the following:

1) To experimentally determine the longitudinal strain distribution in the region of a change in cross-section of a cylindrical bar when a longitudinal wave passes this region.

2) To experimentally determine the longitudinal strain distribution in the incident, reflected and transmitted waves produced by a longitudinal wave in the region of a change in cross-section of a cylindrical bar.

3) To experimentally observe, at a distance of several bar diameters away from the change in cross section, the relation between the magnitudes of an incident longitudinal wave and the reflected and transmitted …

Fortran For The Maniac, Richard C. Lindberg

Electrical and Computer Engineering ETDs

It is not the intent of this thesis to present the rules of FORTRAN; it is assumed that the reader is generally familiar with the principles of FORTRAN programming. Rather, this is an attempt to describe FORTRAN in relation to the compiler program it actually is -- a machine language program which translates FORTRAN statements to machine language instructions, the latter capable of being executed by the same computer. The FORTRAN statements will be interpreted in terms of the compiler program which performs the translation, and algorithms for these statements will be described.

An Investigation Of Methods For Analyzing Networks Containing One Nonlinear Element, Dustin J. Wilson

Electrical and Computer Engineering ETDs

The inclusion of a single nonlinear element in a general N-loop network greatly complicates the resulting equations and prohibits a straightforward solution. The object of this investigation is to provide a method for solving such networks. In particular, a reduction of the network coefficient matrix will be considered in order to obtain one nonlinear equation and (N-1) linear equations. It will be shown that the form of the nonlinear equations is always the same, and a procedure for approximating the solution of equations of this type will be given.

Programming Manual For The Maniac Assembly Routine, Robert C. Ashley

Electrical and Computer Engineering ETDs

No abstract provided.

Transistorized Circuits For Telemetry, Dominick Misciascio Jr.

Physics & Astronomy ETDs

This thesis is concerned with the telemetry of small DC signals from photomultiplier tubes. The circuitry must have a high input impedance so as not to load down the photomultiplier tube and a low output impedance which is capable of controlling the current through a small incandescent bulb. This bulb is used to illuminate a photoresistor. The output of the circuit consists of a variation of the resistance of the photoresistor. This variable resistance is conventionally converted into a variable audio frequency which is transmitted to the receiving station on a radio-frequency carrier. The output resistance must be independent of …

The Investigation Of Frequency Response And Stability Of A Heat Exchanger Under Condensate Control, Louis F. Fornoff

Theses

Control of a condensing steam heat exchanger by condensate throttling was investigated theoretically by a frequency response analysis. The theoretical analysis was verified by experimental operation of the heat exchanger.

The system was characterized by heat transfer calculations and Laplace transform functions. The transfer functions were used to complete a frequency response analysis of the system which predicted the controller settings, the stability of the system and its response to a step set point change. The calculations were verified by experimental operation and reasonable agreement was obtained.

It was calculated that condensate throttling can be used to obtain stable control …

Isobaric Vapor-Liquid Equilibria System : Benzene, Chlorobenzene, Phenol, Larry Madestau

Theses

Isobaric vapor-liquid equilibria were determined experimentally for the three binary systems benzene-chlorobenzene, benzene-phenol, and chlorobenzene-phenol; and for the corresponding ternary system benzene-chlorobenzene-phenol. Constants for the Chao modified Redlich-Kistler equations were calculated from the experimental data by the method of least squares. These constants were then used to predict vapor-liquid equilibria for the ternary system. The predicted values showed satisfactory agreement with those found experimentally.

A modified Ellis still was used for obtaining equilibrium data. Samples of vapor and liquid phases were analyzed by means of the F & M Model 720 vapor phase chromatograph. Benzene, chlorobenzene, and phenol used in …

Prediction Of Ternary Azeotropes From Binary Data, Eric Lustig

Theses

The Margules equation as modified by Wohl for ternary liquid-vapor systems, is used to develop ternary activity coefficients at different concentrations and varying temperatures. Corresponding binary experimental data are necessary to mathematically obtain these ternary activity coefficients. A trial and error graphical technique is used to examine the ternary data for azeotropic conditions. Convergence on ternary graph paper can be easily detected after the first two trials. Divergence is an indication that the system under consideration is nonazeotropic.

Most of the azeotropic systems investigated agreed quite well with published data. The range of disagreement of concentrations for component a in …

A Unique Analog-To-Digital Voltage Conversion Network, Thomas O. Summers

Electrical and Computer Engineering ETDs

The increasing utilization of digital data acquisition systems has resulted in the design and development of a large number of different analog-to-digital voltage converters. Each of these designs exhibits varying specifications with regard to accuracy, speed, environmental tolerance, reliability, and cost.

These specifications are usually interrelated and the nature of the interrelations are, in turn, related to the design approach.

As an example of these interrelations, one could consider the specifications of a converter designed around an electro-optical approach requiring a cathode ray tube with coding mask. In this approach, the analog input voltage causes the deflection of a swept …

Studies In Modulation Of Interfacial Reactions For Certain Sulphide Minerals, Robert Owen Beyaert

Bachelors Theses and Reports, 1928 - 1970

No abstract provided.

Measurement Of Thin Film Thickness By The Crystal Resonance Method, David G. Adams

Electrical and Computer Engineering ETDs

Recent years have seen a tremendous increase in thin film activity. The electronics industry, in particular, has become increasingly active in the development and production of thin film components and complete micro-electronic circuits laid down as thin films. The principal methods of producing thin films are by chemical and electrolytic processes, and by evaporation and sputtering in vacuum. One of the problems associated with film deposition in vacuum involves the measurement of film thickness, a difficult task because: 1) the thicknesses encountered are typically measured in hundreds of angstroms; 2) the films are not physically flat; and 3) they do …

Characterization Of Synthetic Resins Used In Graphite Extrusion Process, Charles I. Fairchild

Chemical and Biological Engineering ETDs

Six furan resins and one epoxy resin were used in tests to determine coking values and gas evolution characteristics of the resins. The same resins, except the epoxy, were used as binders in extruded graphite rods to determine environmental factors affecting the coked density of the rods.

Coking values of the resins containing three different activators were determined by measuring residue remaining after heat treatment to 850° C. Coking values 54-56% were obtained with 8 phr to toluenesulfonic acid actiator.

Gas evolution curves were obtained by measurement of pressure rise in a constant volume apparatus during heating to 300° C …

Habit Modification Of Naclo3 With Nai, William A. Coghlan

Bachelors Theses and Reports, 1928 - 1970

No abstract provided.

Production Of Standard-Grade Ferromanganese In An Electric Arc Furnace, Force F. Baney Jr.

Bachelors Theses and Reports, 1928 - 1970

The investigations conducted in this project were essentially concerned with the effects of various compositions of two different slag systems upon the increased recovery of manganese in a standard-grade ferromanganese.

Investigation Of The Ternary System Silver-Aluminum-Indium (Ag-Al-In), Elvin H. Beardslee

Bachelors Theses and Reports, 1928 - 1970

This thesis paper contains material pertaining to & preliminary investigation of the ternary system Ag-Al-In. Procedures in this preliminary investigation are discussed in detail.

Preliminary Examination Of The Aluminum Corner Of The Ternary System Aluminum-Silver-Indium (A1-Ag-In), Jerome J. Blake

Bachelors Theses and Reports, 1928 - 1970

In this paper the author attempts to lay the groundwork for future work on the Al-Ag-In system.

Increased Corrosion Of A 304 Stainless Steel Upon Bending, William C. Tiddy

Bachelors Theses and Reports, 1928 - 1970

No abstract provided.

Identification Of Nonmetallic Inclusions In Armco Ingot Iron With Polarized Light, Frank E. Panisko

Bachelors Theses and Reports, 1928 - 1970

No abstract provided.

A Study Of The Vibration Characteristics Of A Thin Shell Hyperbolic Paraboloid, Farrin W. West

Theses and Dissertations

Recent progress in structural engineering has been marked by the increased use of thin shells as load carrying members. In particular, shells of revolution have been widely utilized in the missile industry whereas shells of arbitrary shape have been incorporated in the architectural design of today's modern buildings. Missile applications have been extensively studied both statically and dynamically. However, architechural applications have generally been limited to the statics problem with little consideration being given to the dynamic behavior of these unique structures.

Utah State University Stilling Basin Pipe Flow To Open Channels, Hameed Rasheed

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Energy dissipation problems are often encountered where pipelines discharge into open channels. Normal pipe flow velocities most often result in super-critical velocities in canals. These high velocities may cause scour, overtopping, and unstable flow in the channel.

The principal objective of the study was to find an efficient and economical design of a stilling basin transition from pipe flow to open channels. Pertinent variables were selected and their effects determined by extensive experimentation.

An efficient stilling basin was developed utilizing a short dissipator pipe on the wall opposite the inflow pipe. The optimum diameter, length, and differential elevation between center …

Properties Of Radar Augmentation For Missile Targets., Warren T. Randall

Electrical and Computer Engineering ETDs

This thesis presents a study made to investigate problems involved in the design of certain radar augmentation devices. The task arose from the requirement to add realistic simulation of radar reflection characteristics to drone targets during an evaluation of the performance capability of the Falcon missile, conducted by Hughes Aircraft Company at Holloman Air Force Base, New Mexico. In addition to performing a mathematical analysis of the problem, the author who asked to design and build equipment which would present a visual demonstration of the reflection activities. The necessary definition of radar properties and a description of the test equipment …

The Hydrometallurgy Of Uranium, John E. Cesarani

Bachelors Theses and Reports, 1928 - 1970

No abstract provided.

Electrolytic Corrosion Of Reinforcing Steel In Concrete., Lawrence D. Green

Masters Theses

"Deterioration of bridge decks has increased the interest in the corrosion of steel in concrete. A comprehensive review of literature on the subject of electrolytic corrosion of steel in concrete is presented in this thesis.

Development of theory from the literature leads to the following statements. There are two causes for electrolytic corrosion of steel in concrete, stray currents from direct current power sources and the formation of macro-cells within the structure. The corrosion caused by the macro-cells appears to be the more important of the two. Anodic areas exhibit corrosion of the steel and cracking of the concrete.

Many …