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A Plan For Teaching Listening At Benjamin Franklin Junior High School, Springfield, Illinois, Charles R. Pulliam

Masters Theses

No abstract provided by author.

A Theoretical Investigation Of Periodic Precipitation, Jack M. Scrivner

Masters Theses

"The problem of periodic precipitation in solution or gel is considered from the standpoint of supplementing the simple diffusion equation with chemical reaction rate terms. This addition has the effect of making the differential equations of the process non-linear.

The system of equations admits of a periodic, steady-state solution under certain conditions, but lack of experimental values for the parameters prohibits a definite statement as to whether or not the model is valid"--Abstract, page ii.

Evaluation Of Protective Paint Films On Steel By X-Ray Diffraction Techniques, Donald Charles Knobeloch

Masters Theses

"Paints and related organic materials provide the most widely used means of protecting metals against corrosion. While corrosion measurements are based on a full range of quantitative methods in physical and analytical chemistry, the basic problem of evaluation work in the field of paint chemistry has been characterized by empirical testing procedures. Field tests are still of major importance and secondly, the relative value of paints may be predicted through exacting laboratory tests. However, the results of accelerated exposure tests have never successfully been correlated with service experience despite the efforts of many laboratories over a period of 35 years …

A Heterocyclic Alkyd Resin, Bhailalbhai M. Patel

Masters Theses

" 'Alkyd’ is a word coined by Kienle in 1927 to designate a class of synthetic resins which include the complexes resulting from the reaction of polyhydric alcohols and resinifying carboxylic organic aromatic acids or their anhydrides. The word in a broad sense is generally considered to apply to many modifications of these resins - drying, semi-drying and non-drying oil-modified alkyds. It was derived from the words alcohol and acid by combining “al” and “cid” and for euphony changing the ”cid” to “kyd” – al(cid)kyd.

Compounds having rings composed solely of carbon atoms are called homocyclic compounds or carbocyclic compounds. …

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 …

A Geophysical Investigation Of An Area In Christian County, Missouri, Edwin J. Ballantyne Jr.

Masters Theses

"A vertical intensity magnetic survey of 144 square miles in Christian County, southwest Missouri revealed an 825 gamma anomaly having a closure of 9 square miles. A three mile gravity traverse across the magnetic anomaly detected a positive gravity anomaly in excess of six mllligals.

Calculations showed that a Precambrian hill large enough to cause the observed magnetic anomaly would outcrop at the surface. Because Precambrian rocks are known to be buried under a sedimentary layer, this hypothesis was rejected.

Theoretical anomalies of several geometrical bodies at calculated depths were visually compared with the measured magnetic and gravity profiles. A …

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.

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 …

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 Difference Effects On Alpha Solid Solutions Of Oxygen In Titanium Dissolving In Hydrofluoric Acid, Kuo-Chin Chuang

Masters Theses

"Alpha solid solutions of oxygen in titanium dissolving in hydrofluoric acid exhibited a positive difference effect with k values of 5.7, being independent of the concentration of HF, within the compositional range studied 0 to 5 w/o oxygen. This indicates that various TiO_x alloys are polarizable to the same extent by the same strength of anodic current in hydrofluoric acid.

The difference effect observed on TiO_x alloys dissolving in HF-HCl revealed that the effect is dependent on the oxygen content of the solid solution as well as on the concentration of HCl. The presence of HCl results in …

A Preferred Orientation Study Of Sheet Formed By Rolling Copper, Nickel, Titanium And Tungsten Metal Powders, Martin Franklin Marchbanks

Masters Theses

"Pole figure scans of strip rolled from copper, nickel, titanium, and tungsten metal powders were made on samples taken across the width of the strip, and with various amounts of surface material removed, to determine if any preferred orientation existed. No preferred orientation was found in any of the samples examined.

The method used was a modification of the Schultz technique, using the Norelco Pole Figure Fixture, whose geometry and operation is described, in conjunction with the Norelco diffractometer.

Defocusing resulting during the run of a pole figure is discussed and a method for reducing this defocusing is described.

The …

Use Of Light-Weight Steel Strapping As External Reinforcing To Concrete Beams, John O. Buchanan

Masters Theses

"As a result of some recent failures in reinforced concrete construction throughout the United States, a study was made by several national authorities to find some remedial measures of strengthening existing structures without rebuilding. A system was developed, using high strength steel bands applied externally to beams, to act as stirrups, which has been highly successful. It not only greatly increased the strength of beams already in place but was used to repair members which had already failed.

The application of these bands was made under very exact specifications, using closely controlled procedures, with many physical refinements, in order to …

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

Masters Theses

No abstract provided.

A Comparison Of Industrial Arts Curricula In Selected Colleges And Universities In The Middle West 1955-1956 And 1959-1960, Eugene Frantz

Masters Theses

No abstract provided.

A Rhetorical Analysis Of Jane Addams' Speech Of July 9, 1915, Delvenia Gail Shadwell

Masters Theses

No abstract provided.

Developing Music Appreciation In The Elementary Grades, Patricia Stanley Pitol

Masters Theses

No abstract provided.

A Third Approach To High School Physics, Jon Lyle Higgins

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.

A Study Of The Transient State Of Transpiration Cooling, William C. Wolkenhauer

Masters Theses

"This thesis is a successful attempt to show a new approach to the transpiration cooling problem. Transpiration cooling has long been known as an effective way of removing heat from porous material.

It is shown here that transpiration cooling from a porous material, assuming a temperature difference between the coolant and the porous material, is less effective than where the coolant within the pores is assumed to be at the same temperature as the material adjacent to the pore. Previous investigators made the latter assumption.

The specific problem considered here is that of a uniform, porous plate with constant physical …

Preliminary Study Of An Optimum Vibration Absorber For A Multi-Mass System With Multiple Excitation, John Raymond Burrows

Masters Theses

"The object of this thesis is to demonstrate, by the use of a modern digital computer, a fast, efficient method to eliminate or minimize undesirable stress conditions in a multimass vibrating system with multiple excitation. The condition desired is obtained by the addition of an optimum tuned and damped dynamic vibration absorber, for one critical speed only.

Maximum stress is the criteria used for design here and not amplitude as has been used previously by all other authors.

This solution requires the applied torque to be reevaluated as an average torque and a number of half integer harmonics. This method …

Electron Microscope Study Of The Systems Cadmium-Cadmium Chloride And Lead-Lead Chloride, Dennis O'Neill

Masters Theses

"The nature of the dispersed phase in the cadmium-cadmium chloride and lead-lead, chloride systems were investigated with the electron microscope.

Preliminary experiments on preparing and examining the dispersed phase showed that it was most feasible to study the material by electron-microscopic examination of replicas made from the surfaces of the fractured materials. Melting apparatus and methods were chosen so that samples of the melts could be easily quenched to different temperatures and so that the samples could be easily fractured with a minimum of surface contamination. Of the conventional replicating techniques tried, that of carbon replicas pre-shadowed with chromium was …

The Effect Of The Ultraviolet Portion Of The Sun Spectrum On Chlorine Residuals In Water Supplies, Tumkur Mohmed Ameer Ahmed

Masters Theses

"The effect of sunlight on chlorine residuals in water supplies was investigated to provide original and basic information of value to the water purification field.

Three different water systems were employed: (a) The Simplified Water System, (b) The Ground Water System, and (c) The Surface Water System. The RS Sunlamp provided an appropriate source of ultraviolet radiation. A 10 mg/1 chlorine concentration was used. The pH values of 7 and 10 and the illumination intensities of 145 and 200 foot candles were employed. Iodometric determination of chlorine residuals was the main parameter used.

It was found that the chlorine residuals …

Evaluation Of The Force Constants Of Non-Polar Gases From Viscosity Data, Kei-Sin Wei

Masters Theses

"The analytical expressions for the transport coefficients (i.e. viscosity, thermal conductivity, and diffusivity) of an ideal gas can be derived from the kinetic theory of gases. It is also possible to make these analytical expressions adequate for real gases if the intermolecular forces of attraction and repulsion for these gases have been taken into consideration.

The intermolecular forces have been studied by many investigators. The Lennard-Jones potential is one of the most realistic semi-empirical statements which represents particularly the intermolecular forces of attraction and repulsion for non-polar gases.

The values of the Lennard-Jones potential parameters or the force constants of …

Transpiration Cooling, Herbert S. Brahinsky

Masters Theses

"In the investigation of the problem, it is shown that the process of transpiration cooling is an effective method of cooling. This process may be applied to heat screens or heat shields, as was done in the sample problems worked out here. A porous plate with coolant flowing counter to the flow of heat was used.

The plate temperature is determined by the amount of heat flux, coolant flow, thermal conductivity of the material used as a plate, the specific heat of the fluid, the specific heat of the plate material, the density of the plate material and its porosity. …

A Vacuum Induction Furnace For Pyrometric Cone Equivalent Determinations, Robert E. Farris

Masters Theses

"Various furnaces which are commonly used for P.C.E. determinations were compared from a literature review. The inadequacies of these furnaces were noted and a furnace was designed, constructed, and evaluated in an effort to minimize or eliminate some of the indicated problems. For this furnace heat is developed in opposed cones (susceptors), which are fabricated from 0.005” molybdenum sheet, by induced (induction) currents from a 10 KW vacuum tube generator. The furnace components are enveloped by a pyrex cylinder in which a vacuum (approximately 1 to 5 micron pressure absolute) is maintained during operation"--Abstract, page ii.

Design Of A Square Loop Magnetic Integrating Device, Fred Leland Grismore Jr.

Masters Theses

"The problem investigated in this research was the development of a static integrating circuit applicable to closed loop feedback control systems. Investigation of various methods of attack indicated that square loop magnetic cores offered characteristics required for the integration process. These include the ability to sum input information and the ability to store information for an indefinite period of time.

An experimental program was carried out, investigating the various properties of square loop magnetic materials and required design parameters. Through this work it was verified that the process of integration could be realized by using the partial switching volt-second absorption …

Normal Incidence - Grazing Incidence Spectrograph For The Vacuum Ultraviolet, J. Kirston Henderson

Masters Theses

"Presentation of Design.

This thesis presents the design for a combination normal incidence - grazing incidence spectrograph for use in the vacuum ultra-violet and soft x-ray portions of the electromagnetic spectrum. The instrument described was designed and constructed as a partial fulfillment of the requirements for the master of science degree from The Missouri School of Mines and Metallurgy.

Design Details.

Included in this thesis is a complete set of all detailed drawings and information required for either effective use or duplication of this instrument. Complete discussions of the design, operating procedures, difficulties encountered during construction and suggestions for future …

An Investigation Of The Factors Influencing The Design Of A Dense Prilled Ammonium Nitrate-Fuel Oil Mixture, Robert Bartley Hopler Jr.

Masters Theses

"The physical characteristics of dense ammonium nitrate prills were examined. The density was found to be 1.52 grams per cubic centimeter, and from this the specific surface was calculated for the size fractions of interest in the investigation. Theoretical loading densities were calculated for between 26.0 and 47.6 percent voids.

The explosive properties of discrete particle size fractions were investigated. The equation by Clark was found to predict the detonation velocity of the sizes smaller than 8/20 mesh. The equation by Cook could not be applied to dense prilled ammonium nitrate. The possibility of a very oxygen negative condition existing …