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Great Britain And The Oregon Question, Robert George Winters

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

An Investigation Of Food Deprivation And Competition On Hoarding Behavior In The Domestic Cat, Jo Ann Sinclair

Masters Theses

No abstract provided.

Administrative Guide For Football At St. Teresa High School Decatur, Robert J. Ernst

Plan B Papers

No abstract provided.

A Method Of Evaluating Women Resident Assistants Performance Through Their Recognized With Residents, Lucille H. Bush

Plan B Papers

No abstract provided.

Duties Of Suburban Cook County Common Elementary School Superintendents, Royal Allen Senn

Plan B Papers

No abstract provided.

Arthur Elementary Teachers Opinions Of Instructional Television, Edgar D. Smitley

Plan B Papers

No abstract provided.

Industrial Education As A Possible Factor In Reducing Public School Drop-Outs, Bruce Wisner

Plan B Papers

No abstract provided.

A Handbook Of Field Trips For The Elementary School In Mattoon, Illinois, James E. Higgins

Plan B Papers

No abstract provided.

A Descriptive Study Concerning Grading And Reporting To Parents In The Elementary Schools Of East Central Illinois, Helene A. Dalton

Plan B Papers

No abstract provided.

The Elementary Teacher's Role In A Guidance Program, Paul E. Mcqueen

Plan B Papers

No abstract provided.

A Study Of The Nongraded Elementary School With A Particular Reference To The Experience At Old Bonhomme School District Of Laude St. Louis County, Missouri, Harriet B. Walker

Plan B Papers

No abstract provided.

A Survey Of Former Oakland High School Students As An Aid In Curriculum Planning, Julius F. Wiese

Plan B Papers

No abstract provided.

A Survey Of Materials Centers In Laboratory Schools, Peggy Ann Pool

Plan B Papers

No abstract provided.

The Relationship Of Elizabeth To Machiavelli, Allen Skeleton

Plan B Papers

No abstract provided.

Supervision Of Physical Education, Robert Parrish

Plan B Papers

No abstract provided.

Distribution Of Sodium Perchlorate Between Tributyl Phosphate And Water, John A. Tengler

Masters Theses

"The questions posed by Carroll (23) concerning a TBP-H₂O system and an alkali salt -which is appreciably soluble in TBP have been partially answered by the experiments described in this thesis"--Conclusions, page 38.

Study Of The Temperature Dependence Of The Haeffner Effect In Mercury, Charles George Arnold

Masters Theses

“In 1953, E. Haeffner (1) reported that after he had passed a direct electric current through a capillary tube filled with mercury, he obtained a separation of the isotopes of mercury. It was found that the heavier isotopes were enriched at the negative terminal and the lighter Isotopes at the positive terminal. This effect has since been referred to as the Haeffner Effect. Since this original experiment, other investigators have observed this effect in many other liquid and some solid metal systems.

The work of J. N. Baysden (2) showed that the separation of the isotopes in mercury could be …

Correlation Of Chemical Structure And Distensibility Of Polyesters., Nitin Jhaverbhai Bhimani

Masters Theses

"Maleic anhydride and fumaric acid are important raw materials for the manufacture of unsaturated polyesters. Unsaturated polyesters are the esterification products of unsaturated dibasic acids and polyvalent alcohols, polymerized to a high molecular weight resin"--Introduction, p. 1

A Rubber Membrane Analogy For The Study Of Shafts In Torsion., Myron D. Bruns

Masters Theses

"The thesis presents a review of literature giving reference to several books which present the many and varied methods of determining the shearing stresses in shafts. However, no reference was found that used a rubber membrane analogy similar to that used in th is thesis. The theory of torsion, the membrane theory, and its analogy have been presented for a better understanding of the subject. Illustrations are used freely for clarity.

Analytical methods and solutions are given for two problems. The first method is that of writing a Saint-Venant stress function and satisfying the necessary conditions for it to be …

The Prediction Of The Viscosity Of Multi-Component Non-Polar Gaseous Mixtures At Atmospheric Pressure., Gary D. Fehsenfeld

Masters Theses

"The applicability of the Strunk, Custead, and Stevenson method for predicting the viscosities of multicomponent, non-polar, gaseous mixtures vas investigated. The viscosities of 24 ternary and quaternary gaseous mixtures were experimentally determined, at 3 temperature levels, and compared with the corresponding calculated viscosities resulting from the prediction method. In addition, the published viscosities of 64 multicomponent mixtures were compared with the corresponding calculated viscosities.

Altogether, the viscosities of 136 multicomponent, non-polar, gaseous mixtures were compared. The mixtures contained from 3 to 7 components including 16 different gases in the temperature range from 5• to 1014 ° c, and at a …

Correlation Between Drying Times Of A Vinyl Copolymer Solution And Properties Of Dried Films., Abd El-Rahman M. Naser

Masters Theses

"One of the common methods used in film formation is the solvent evaporation method. As the evaporation starts the viscosity increases due to the inability of the solvent to keep the chains apart, which leads to a drag between molecules.

The rate of evaporation of the solvent (loss of solvent) cannot be equated with the rate of drying, since the latter depends on the results of the loss of solvents in terms of viscosity and plastic properties. The drying time can be defined as the rate at which a film increases its viscosity and thus changes the properties of a …

A Study Of Rotational Critical Speeds For A Multi-Mass System By Influence Coefficients, Kantikumar G. Patel

Masters Theses

"In this investigation an attempt has been made to determine the critical speeds of a multi-mass rotational system by using influence coefficients. Modes of vibrations are also examined at these critical speeds.

A shaft carrying five masses, supported by bearings at the ends, has been studied analytically. The length of the bearings is considered small with respect to the shaft length and therefore, the configuration is assumed to be point supported as a simple beam. The five masses, each weighing one pound, were placed at equal distances of 10 inches on a 60 inch shaft. The critical speed was examined …

On A Numerical Solution Of Dirichlet Type Problems With Singularity On The Boundary., Randall Loran Yoakum

Masters Theses

No abstract provided.

Minimum Frictional Characteristics Of Optimum Journal Bearings., Navinchandra F. Shah

Masters Theses

"This investigation was conducted to develop a graphical representation to determine the optimum bearing conditions for minimum friction and to establish a theoretical approach for journal bearing design.

A series of graphs has been plotted for· the coefficient of friction versus the eccentricity ratio based on the. Sommerfeld number derived from Reynolds' differential equation, f or optimum journal bearings.

The results obtained in this research have been compared with those developed by other investigators. This comparison confirms the validity of the results presented in this thesis, so that it could be used advantageously for the design of optimum journal bearings"-- …

A New Determination Of The Homogeneous Nucleation Rate Of Water In Helium, Edward Francis Allard

Doctoral Dissertations

"The object of this investigation is to apply the best known cloud chamber techniques to the study of condensation phenomena, directed mainly toward the development of a precise method for the determination of homogeneous nucleation rates. A secondary object is to investigate the properties of re-evaporation nuclei so that adequate precautions may be taken to eliminate their detrimental effect in the homogeneous nucleation experiments"--Statement of Problem, page 10.

A Study Of Plane And Spherical Compressional Waves In A Voigt Viscoelastic Medium, Gerald B. Rupert

Doctoral Dissertations

"In investigating the behavior of waves traveling through cohesive solids, two assumptions are usually made: that the propagating medium is either elastic or viscoelastic, and that the wave is either planar or spherical in form. For small distances from the source of the disturbance the medium can be considered elastic and the wave spherical rather than planar. The assumption of elasticity allows considerable simplification of the mathematical analysis, and assuming a spherical wave form is an acceptable approximation if the initial disturbance is essentially a point source and the propagating medium is nearly homogeneous. However, for large distances from the …

Mechanism Of Siliconizing Of Molybdenum And Tantalum By Vapor Deposition, Gordon Pu Kong Chu

Doctoral Dissertations

"Molybdenum and tantalum were siliconized in an enclosed system by the hydrogen reduction of silicon tetrachloride with induction heating between 900°C and 1450°C.

The siliconizing process was primarily influenced by the gaseous composition, temperature, time, molar flow ratio (SiCl₄/H₂), geometrical shape and ionization charges. The rate of siliconizing, measured as the weight gain by the fused quartz helix balance, generally follows a parabolic law, y = k t^1/2, where y = weight gain, t = time, and k = rate constant. The activation energy is estimated at 21.6 k cal/mole for siliconizing of molybdenum. …

A Study Of Turbulent Mass Transfer In A Wetted-Wall Column, David William Bunch

Doctoral Dissertations

"The field of mass transfer is one of great interest to the chemical engineer. An understanding of this field is vital in the design of many types of chemical processing equipment, particularly in the areas of distillation, extraction, absorption, adsorption, and reactor analysis and design.

However, much of the knowledge in this area at the present time is in the form of empirical relationships, and the basic theory is still not well delineated. This lack of understanding leads to expensive and over-sized or under-sized equipment.

A particular area within this field which needs additional investigation is the theory of mass …

A Study Of The Eddy Diffusivity In Turbulent Heat Transfer, Frank Fu-Kun Tao

Doctoral Dissertations

"The purpose of this investigation was to determine the eddy thermal diffusivity values as a function of radial position at various Reynolds numbers for a fluid flowing turbulently in a pipe. The ratios of the eddy thermal diffusivity and the eddy viscosity were also investigated.

A vertical column of copper tube two inches in diameter was constructed which consisted of an entrance section for the development of the velocity profile and a heating section for the development of the temperature distribution. The heating section was jacketed and maintained at a constant wall temperature at about 103 ° F by the …

Lattice Parameters, Thermal Expansion Coefficients, Densities, And Imperfections In Silver And In The Alpha-Phase Of The Silver-Indium System, Samir Moustafa Riad

Doctoral Dissertations

“An investigation of structure insensitive properties (lattice parameters, thermal expansion coefficients, densities, and imperfections) of silver and the α-phase of the silver-indium system was suggested by the desirable uses for silver and its indium alloys.

Both silver and indium used were 99.999 per cent pure. The silver-indium alloys were prepared by melting both metals inside evacuated and sealed fused quartz tubes. The solidified alloys were annealed and then examined by X-ray diffraction for homogeneity.

This experimental work is divided into three main parts:-

I. X-ray diffraction investigation to determine the solid solubility limit of the Ag-In α-phase at 25° C, …