Digital Commons Network^™

Design, Construction And Operation Of Equipment For The Study Of Evaporation Of Aqueous Solutions Using A Simplified Reactor Design Approach, Virendra Kumar Mathur

Masters Theses

"The study of simultaneous heat and mass transfer in flow reactors has attracted the attention of many workers for a long time due to its wide application in the industrial field. These heat and mass transfer studies play an important role in determining the rate equations and in turn the size of the reactor itself. A large number of chemical reactions have been studied by various workers….

The purpose of this work comprised only the initial or exploratory phase of this overall project, and deals with the design, construction and assembling of the equipment necessary to carry out the vaporization …

Impact Energy Coupling And Impact Seismic Refraction Using Electronic Timing, Roderick D. Carroll

Masters Theses

"The use of impact energy sources in lieu of explosives for shallow seismic investigations is limited chiefly by the low energy available. Means of increasing the energy transmission of an impact source are investigated, using a weight drop arrangement and an oscilloscope. The energy of refracted arrivals is investigated by direct overburden impacts, compaction of the overburden at the point of impact and the use of steel and aluminum plates as coupling devices. Energy transmission is shown to be greatly increased, using a suitable coupling device and the conditions for optimum coupling are discussed. The elastic constants of the ground …

Apparatus For Inductive-Electromagnetic Model Studies, Won Ho Kim

Masters Theses

"The object of this research is to design, construct and calibrate an apparatus suitable for electromagnetic model studies. A portion of the thesis is devoted to general review and theoretical consideration of electromagnetic prospecting.

Theoretical analysis of electromagnetic survey data by mathematical methods can only be carried out for simple idealized subsurface conditions. Because of the difficulties of theoretical solutions, in contrast to the simplicity of the conditions of similitude in electromagnetic exploration, a model experiment offers a very useful means of studying and comparing the response of naturally occuring conducting mineral bodies.

An apparatus suitable for inductive-electromagnetic model studies …

The Magnetic Monopole, Thomas E. Kemple

Masters Theses

"Since Dirac has shown that the concept of a magnetic monopole follows from the fundamental laws of quantum mechanics and that it imposes quantization of electric charge, one has reason for taking the magnetic monopole seriously. Such particles, if they exist, would also give symmetry to Maxwell's equations.

A comprehensive review of the literature is presented and all known properties of magnetic poles are discussed. Scattering of mono- poles by heavy nuclei is analyzed in detail and definite mathematical relations are established. All previous experimental work known is outlined and discussed. Definite criteria for identification of monopole tracks in a …

A Study Of The Energy Dissipation And The Related Pressures And Velocities Of Cylindrical Tank Type Stilling Basin, Graham Wayne Wood

Masters Theses

"In all hydraulic structures that hold back water, whether for the purpose of power, irrigation or flood control, all must have some means of dissipating the energy that is produced by the movement of the water from the pond or reservoir to the tailrace. The method of dissipation depends largely on downstream conditions, terrain and economics. The dissipator is to prevent scour and the undermining of the dam itself. The construction of any type dissipator should be the best one available for the least cost of construction. However, space limitations may dictate another type of dissipator. It has been recommended …

Tank Studies Of The Resistivity Horizontal Profiling Method Of Electrical Prospecting, Edward Hornsey

Masters Theses

"This research project was undertaken to perfect a technique whereby theoretical horizontal resistivity profiles could be reproduced in laboratory tank studies.

Several specimen materials were tried and finally an acceptable specimen material was found. It was found that carbon specimens suspended in salt water would give horizontal resistivity profiles that agree to a remarkable degree with the theoretically predicted curves.

The investigations showed that the depth of burial of the specimen has a marked influence on the position of the characteristic edge effects and on the magnitude of the apparent resistivity.

The studies also indicated that successful tank studies could …

A Method Of Estimating Groundwater Influx Into A Vertical Mine Shaft, Morris T. Worley

Masters Theses

"Prediction of groundwater influx into mine openings is one of the more important pre-development problems encountered in mining. A satisfactory method of estimation would provide the information necessary for a mining company to dewater prior to shaft sinking, pre-grout the shaft area, or plan pumping schemes to handle the expected flow.

A standardized field method of estimating groundwater supply from pumping test data was developed by O. V. Theis and others. In the present research problem, the estimation procedure has been simplified by the use of nomograms. Certain modifications in the estimate must be made when a pumping well is …

A Dissolution Rate Study Of Beryllium In Hydrofluoric Acid, Donald Lee Mathis

Masters Theses

"Beryllium was shown to react stoichiometrically with HF, HCl, and H₂SO₄ acids in accordance with a plus two valence. These reactions were investigated by the hydrogen evolution method.

Dissolution rates were determined in five concentrations, 0.01, 0.05, 0.10, 0.50, and 0,75 N, of HF acid at 10, 20, 30, 40 and 50°C, This was accomplished by the hydrogen evolution method and the results were based on the tested stoichiometry. Beryllium has a high dissolution rate in HF acid, which approximates the following under similar conditions: 10 times Al, 4 times Ti, and 1.5 times Zr. A kinetic …

Basic Concepts And Audio-Visual Techniques Needed For Teaching Art Appreciation, Vera Ruth Ramsey

Masters Theses

No abstract provided.

Physical Facilities, Tools And Teaching Aids As A Means Of Improving Drafting Instruction, William E. Wyatt

Masters Theses

No abstract provided.

A Survey Of The Bookkeeping Systems And Practices In A Selected Group Of Businesses Of Peoria, Illinois, John H. Morrisey

Masters Theses

No abstract provided.

A Proposal For A Preventive Play Therapy Program For Kindergarten Through Third Grade, Donna R. Ricchiardi

Masters Theses

No abstract provided.

An Analysis Of Drinking Practices And Problems Among Male Undergraduates At A Midwestern University, Ronald Charles Vanderkooi

Masters Theses

The purpose of this research was to study the patterns and problems of drinking among men at a Midwestern university. The primary method used in the study was a questionnaire given to a cross-section of the male student body. The study was designed to determine the extent of drinking at the university. Such factors as the frequency and locality of drinking were investigated. Attitudes concerning college drinking were also explored. Finally, the study was concerned with problems associated with the use of alcohol by students.

Analyses Of Two New Electrode Configurations For Earth Resistivity Surveying, Chi-Chao Chang

Masters Theses

"Two new electrode configurations for the electrical resistivity- surveying are introduced: the A-configuration, consisting of a closely spaced pair of current electrodes separated at larger distance from the closely spaced pair of potential electrodes, and the B-configuration, in which each closely spaced pair consists both current and potential electrode. Because electrode pairs can be carried as units, the new configurations can be applied to continuous resistivity surveying more easily than the Wenner configuration....

Theoretical apparent resistivity values are derived, by Maxwell's theory of images, for the A- and B-configuration over a two layered earth using the depth probe method, and …

Scatter Matrix Analysis Of Plane Waves In A Layered Media, Bill W. Ashworth

Masters Theses

"The problem was the application of matrix theory to the solution of the reflection and transmission coefficients for a plane wave incident on a layered media. Background material relating to the problem was reviewed. Equations that were used in the solution of the problem were either derived or explained. The derivations for the reflection and transmission coefficients were carried out in order, starting with the simple case of normal incidence on a junction of two infinite media and progressing through the more difficult case of oblique incidence on a layer of finite thickness separating two infinite media. Scatter matrix analysis …

Effects Of Solids On Friction Factor In A Sand-Water Mixture, Frank J. Capek

Masters Theses

"At the present time various industries in both the United States and Europe are very interested in using pipelines as a means of transporting solids. The pumping of solids in pipelines isn't new, however, many of the pipelines in use today were constructed on an empirical basis. This is primarily due to the lack of knowledge concerning the flow properties in fluid-solid mixtures and slurries. With this need for fundamental information in mind, the author made a study on the effect solids have on the friction factor in fluid-solid mixtures.

In this paper various percentages of fine and coarse sand …

Transpiration Cooling Of A Plane Porous Plate, Raymond George Posgay

Masters Theses

"The transient temperatures were determined in a porous plate for one dimensional heat flow and one dimensional counter coolant flow. One surface of the porous plate was heated by a hot gas by convective heat transfer. A general discussion of the problem is considered and the procedure described for working all such problems dealing with transpiration cooling.

The solution of such problems is illustrated by two examples employing a ceramic plate one inch thick and cooled by a uniform flow of air in a direction counter to the flow of heat, while one surface of the ceramic plate was heated …

A Study Of Teaching Music Reading In The Elementary School, Janelle Ellen Ogle

Masters Theses

No abstract provided.

The Separation Of Selected Radioactive Fission Products By Electrodialysis, Jerry David Vie

Masters Theses

"The recent advent of nuclear energy has opened an era of almost unlimited power and countless problems. A problem of extreme importance is the recovery of unburned nuclear fuel and the claiming of transmutation products, such as Pu²³⁹ and U²³³, from the irradiated fuel elements. The chemical processing must also separate the fission products from the fissionable material if the fuel is to be used again.

At present, the irradiated fuel elements are stored for 90 to 120 days to allow the intense short half-life activity to decay. After "cooling down", the nuclear fuels are separated from …

Preparation Of Casting Slips Containing Ferrous Powders And Alginates, Robert Eugene Newcomer

Masters Theses

"The preparation of casting slips containing ferrous powders dispersed by alginates was studied and an attempt was made to determine the mechanism by which suspension was attained. The colloidal aspects of preparing ceramic casting slips are discussed and an analogy is drawn to preparation of metallic slips suspended by alginates.

Sodium and ammonium alginates were used to suspend stainless steel and iron powders. The effect of NaOH, HC1, and various phosphate additions on the properties of slips and algin solutions was considered.

It was found that colloidal concepts can not be applied to explain observed behavior in the system studied. …

A Dissolution Rate Study In Hydrofluoric Acid Of Titanium And The Alpha Solid Solutions Of Oxygen In Titanium, John L. Ratliff

Masters Theses

"The dissolution mechanism of titanium in hydrofluoric acid was studied by collecting the hydrogen evolved during the dissolution reaction. A concentration range of 0.05 N to 0.50 N and a temperature range of 15°C to 45°C were employed for the determination. Values of the reaction order and energy of activation were determined for both pure titanium and the alpha solid solutions of oxygen in titanium and found to be the same within experimental limits. This indicated that the reaction giving rise to hydrogen evolution on the surfaces of both pure titanium and the TiO_x alloys was the same. The …

Business-Sponsored Films For Physical Science, Bertha Elizabeth Slye

Masters Theses

For many years business-sponsored films have been used widely in instruction in the science classroom. Because of the potential of the films in helping teachers bridge the gap between the fundamental teaching of scientific principles, and the applications found in the actual experiences of the student's consumer world, requests for them have often exceeded the output of those that are educationally sound. In the last decade in particular, the development of atomic and space technology, as well as the growing interest in science, have made it necessary to teach science beyond the confines of information in the ordinary science textbook. …

A Study Of The Music Program In The Public Schools Of Edwards County, Robert Gene Wallace

Masters Theses

No abstract provided.

Electrical Model Investigations Using The Horizontal Profiling Technique, Alan H. Kwentus

Masters Theses

"Electrical exploration methods have been used for many years as a means of determining subsurface structures and in the search for mineral deposits. Vertical profiling techniques can be used to determine rather accurately the resistivity and thichness of horizontal or gently dipping beds for cases up to four layers. Mathematical calculations have been made for multiple layers and theoretical curves have been computed and published for four and more layers. The vertical profiling method is not particularly well suited to the problem of locating lateral changes in resistivity produced by such features as ore bodies, sinks and channels. These features …

The Correspondence Of Error Between The Voiced And Unvoiced Cognates “S” And “Z” In Children With Articulatory Disorders, Gerald F. Johnson

Masters Theses

Introduction

The problem as set forth in this thesis is to determine the correspondence of error between the voiced and unvoiced cognates "s" and "z" in children with articulatory disorders. It has been assumed that the correspondence of error type would be high due to the similarity of the sounds. Anderson, for example, says that "much of what is true with respect to "s" applies with equal force to its voiced analogue "z"." The problem of this research is to determine whether there is any correspondence between the respective errors on the sibilants "s" and "z" and if they correspond …

Field Application Of The Membrane Filter Method For Bacteriological Quality Determination Of Water, Charles Liston Gambill

Masters Theses

"The purpose of this thesis is to demonstrate the definite advantages to be realized when using the membrane filter method as an accepted procedure for the bacteriological analysis of a water; and specifically when used under emergency or field conditions such as military units in the field. These same advantages would apply to Civil Defense and other such agencies when operating under emergency or field conditions.

Data from actual tests showing techniques, equipment and procedures used and augmented by other data available from research papers will be utilized"--Introduction, page 2.

Hymnody In The Liturgical Aspects Of Worship, Philip Steen

Masters Theses

The main purpose of this study was concerned with the relationship of hymns to services in the church. The author sought to answer the question, "What are the hymns that should be used for a certain service in the Church Year?” This would have to be explained from both a theological and musical viewpoint. In order to answer this question, it was necessary to include four minor areas of study (1) the history and use or hymns and hymn tunes, {2) the history and use of the Liturgical Year, (3) the elements that determine a good hymn and (4) the …

The Effects Of Ultrasonically-Induced Cavitation Upon Dissolved Oxygen, Free Carbon Dioxide, And Bicarbonate Ion Concentration In Water, Charles Alvin Wentz Jr.

Masters Theses

"Cavitation may be encountered in many scientific fields. Mechanical and civil engineers are concerned with the prevention of cavitation erosion in the design of turbines, propellers, underwater missiles, and similar structures. Biologists and physiologists are seeking more knowledge concerning the tensile strength of liquids, such as, tree sap and the formation of gas bubbles in the blood stream. Finally, the physicist and acoustical engineer must cope with the cavitation problem when working with underwater transducers, cavitation noise, and the propagation of acoustical signals through media in which cavitation is occurring.

There are many forces which hold a liquid together and …

A Preliminary Investigation Of Natural Gas Combustion As Applied To Thermal Recovery Of Petroleum, Roger J. Schoeppel

Masters Theses

"Present application of the subsurface combustion processes in the thermal recovery of petroleum afford favorable and opportune methods of providing greater recoveries from petroleum reservoirs. This study attempts to elucidate some of the parameters controlling the complex hydrocarbon oxidation for one such process. The experimental phase consisted of investigating the combustion behavior of eight nonexplosive and one explosive natural gas-air mixtures at low and intermediate pressures. The hydrocarbon was allowed to oxidize by self-ignition under controlled conditions within environments precluding a visible flame type reaction. Progress of the reaction was followed by measuring effluent oxygen content.

Experimental evidence indicate the …

Chemical Kinetics Of The Zirconium-Hydrofluoride Reaction, Wayne G. Custead

Masters Theses

"It has been only in recent years that hafnium-free zirconium has been made available for commercial use. When economical methods were developed in 1950 to remove hafnium from zirconium, a metal was produced which not only exhibited good corrosion resistance and desirable physical properties, but which also had a very low absorption cross section for thermal neutrons. These factors have led to its most important application to date, that of a structural material for nuclear reactors.

The outstanding non-nuclear property of zirconium is its corrosion resistance to most mineral acids. Hafnium-free zirconium exhibits outstanding resistance to all mineral acids with …