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Vibration And Buckling Of Elastic Plates With Shear And Rotatory Inertia, Bomi Batiwalla

Dissertations

The effects of shear, rotatory inertia and inplane forces on the transverse vibration of thin plates are studied. In addition, the effect of shear on the buckling of thin plates is examined. A general differential equation of motion is derived for an isotropic thin plate subjected to normal and inplane forces with the consideration of shear and rotatory inertia. The method of internal constraints and Hamilton's principle are utilized.

The resulting fourth order differential equation is solved for simply supported plates of various shapes by employing a finite difference technique. The shapes examined are a square, a circle, a circular …

A Study Of Job Satisfiers And Job Dissatisfiers Of Ministers Of Education, Howard L. Bixby

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No abstract provided.

A Study Of The Use Of Subordinate Feedback In Changing Manager Image, Kenneth B. Bootsma

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No abstract provided.

An Analysis Of Gunnar Myrdal's Social And Educational Theory, Jeanne Marie O'Toole

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No abstract provided.

A Surface Exploration In Search Of Mycenean Roads In Nomos Fokidhos And Nomos Fthiatidhos, Edward W. Kase

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No abstract provided.

Differential Effects Of Counseling Of Prospective Graduates In Selected Junior Colleges Of A Multi-Campus Urban Junior College System, Wesley E. Soderquist

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No abstract provided.

Eugene O'Neill's Use Of Symbolism In Eight Major Experimental Plays, F. Jay. Butler

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No abstract provided.

The Explorer, The United States Government, And The Approaches To Santa Fe: A Study Of American Policy Relative To The Spanish Southwest, 1800-1819, Lee Francis Brown

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No abstract provided.

A Comparative Study Of Taxonomic Methods For The Classification Of Personality, James W. Graham

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No abstract provided.

The Relation Of Expressed Student Interest In Behavioral Objectives To Achievement In Civil Defense Adult Education, Nina Louise Ruskjer

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No abstract provided.

The Effects Of Praise On Selected Variables In Secondary School Classrooms: A Behavior Modification Approach, Robert Earl Hardy

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No abstract provided.

The Effect Of Variable Properties On The Laminar Flow Of Gases, Norman Shilling

Dissertations

The problem of heat transfer in laminar flow of a gas through a constant diameter cylindrical tube is treated. The gas is cooled by the tube walls held at constant temperature. Two tube inlet conditions are considered: (1) fully developed velocity and uniform temperature profiles (Graetz boundary condition) and (2) uniform velocity and temperature (UTV) profiles. Results of the theoretical and experimental phases of the work are presented.

The theoretical solution is based on the compressible boundary layer equations with varying transport and thermodynamic property terms retained. For the Graetz condition, an existing finite difference solution scheme is modified for …

The Oxidation Of Carbon Monoxide By Magnesium Aluminate, James A. Whelan

Dissertations

In this research the catalytic oxidation of carbon monoxide was investigated on magnesium aluminate catalysts, MgO:xAl₂O₃, with five different compositions, x, ranging from 1.0 to 3.0. The reaction was run at temperatures ranging from 500 to 600 °C. with radioactive carbon monoxide as the tracer. An experimental technique has been devised for the analysis of unreacted CO which takes into account a correction for the solubility of CO in CO₂.

Four mathematical models were postulated to explain the mechanism of reaction. The models were examined against experimental data by means of non-linear least squares …

An Investigation Of The Use Of The Wyoming Verb Network To Teach Elementary Science, Catherine Herndon Wiegand

Dissertations

The Problem The investigation was concerned with three questions: 1. Does a series of elementary science programs taught over the Wyoming VERB Network contribute any science content learning to the experimental group? 2. Does the grade level of the students affect the science content learning which might be attributed to VERB instruction? 3. Does community size affect the science content learning which might be attributed to VERB instruction? Procedure Classes from five different communities participated in the study. Fifth, sixth, and seventh grade classes were tested for science achievement in February, 1970. This sample had not been exposed to VERB …

Centering In Parallel Channel Systems, Allen Katz

Dissertations

Several types of signal processing systems in which the signal flows along parallel channels in a fashion similar to the auditory system have been investigated. The effect of excitation with signals containing both single and multiple spectral peaks (formants) was considered. In particular, the effect of nonlinear interaction between channels, referred to as centering, in the presence of noise was studied.

These systems were investigated for their value, both as information processing networks and as models of the auditory system.

The analysis indicates that parallel channel systems, in general, exhibit excellent performance in the presence of noise, and that a …

Sidelobe Suppression In Chirp Radar Systems, Stephen N. Honickman

Dissertations

Pulse radars extend target range detection by increasing the transmitted pulse width. On the other hand, target resolution is enhanced by reducing the system pulse width. These dichotomous requirements led to the invention of chirp radar systems which achieve greater target resolution for a given detectable range by frequency modulating the carrier frequency of the transmitted pulse. Along with the advent of chirp radars came the extremely simple and reliable technique of chirp signal generation known as "passive generation". However, one of the undesirable features of "passive generation" lies in the infinite time required for transmission of the resultant pulse, …

Local Mole Fraction Equations For The Excess Free Energy Of Mixing, Jose Mario Marina

Dissertations

An extensive study of local mole fraction equations aimed at obtaining a two parameter expression for the Excess Free Energy of miscible and immiscible systems has been undertaken.

Initially our approach was to modify existing equations by substituting those parameters reflecting interaction between like molecules by the pure component energies of vaporization. This resulted in a one parameter modification of the three parameter Wilson equation, which correlates data poorly and a two parameter modification of the NRTL equation which correlates binary miscible data with fair accuracy. A modification of the Scatchard-Hildebrand equation, where mole fractions are substituted by local mole …

Transverse Vibration Of A Class Of Orthotropic Plates, Nicholas J. De Capua

Dissertations

This study determines the eigenvalues, eigenvectors, and nodal patterns of a class of orthotropic plates whose geometry is governed by the equation

(x/a)^α + (y/b)^β = 1,

where the parameters a, b, a, and a permit the plate geometry to vary over a range which includes the rhombus, circle, ellipse, square, and rectangle.

Variable thickness, inplane forces, and mixed or discontinuous boundary conditions are also considered. The following assumptions have been employed:

i). plate is thin with respect to other dimensions,

ii). deflections are small,

iii). rotary inertia and shear are neglected.

The method of analysis employed is …

A Theoretical And Experimental Study Of The Mechanism Of Axoplasmic Convection In Nerve Fibers Driven By Peristaltic Surface Waves, Robert John Biondi

Dissertations

In the study of cell biology, investigators have found that substances which are produced within the cell nucleus are sometimes found throughout the cell at points distant from the site of production. In the case of nerve cells (neurons), this is particularly dramatic because of the unusual elongated geometry of these cells.

A neuron possesses a cylindrical tubular extension called an "axon" or "axis cylinder" which is characterized by a large length-to-diameter ratio (10³-10⁶). The existence of a continuous proximo-distal flow of axoplasm within these cylindrical axons has now been demonstrated by numerous investigators. In …

A Study Of The Status Of Collective Negotiations In The Secondary Schools In The Archdiocese Of Chicago, Mary Salesia Martinkus S.S.C.

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No abstract provided.

An Environmental Assessment Of Wilbur Wright College By Students In Differing Curricula Programs, R. Edmund Dolan

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No abstract provided.

Role Of The Student Personnel Educator In Promoting The Unique Goals Of The Religiously Oriented Liberal Arts College, George Fowley

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No abstract provided.

Implications Of Leadership Style And Goal Setting On Leadership Processes As Perceived By School Superintendents, Stanley L. Mularz

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No abstract provided.

Relativity, Quantum Theory, And The Novels Of Samuel Beckett, I. Pius

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No abstract provided.

An Historical Study Of The Professions And Professional Education In The United States, John J. Ahern

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No abstract provided.

An Investigation Of Factors Related To Student Satisfaction And Dissatisfaction With High School, Delbert B. Beelick

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No abstract provided.

Perceived Behavioral Changes In First-Line Supervisors Who Participated In A Basic Management Program, Ralph C. Skrocki

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No abstract provided.

Application Of Herzberg's Dual-Factor Theory To Faculty Members In A University, Lloyd George Swierenga

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No abstract provided.

Theoretical And Experimental Evaluation Of Cardiac State Utilizing Indicator Dilution Methods For Nonuniform Ventricular Mixing, Stanley Myron Welland

Dissertations

This research is directed toward the development and application of a new approach to the evaluation of cardiac work to diagnose cardiac state. A procedure has been developed for calculating the work performed on the fluid by the left ventricle during the heartbeat. The procedure involves the continuous direct measurement of ventricular fluid mixture temperature during and following the controlled injection, through a catheter, of a known volume of cold saline into the left ventricle. The measured mixture temperatures are used to calculate continuous ventricular volumes during the systolic and diastolic functions of the heartbeat. Plotting measured ventricular pressure versus …

A Kinetic Study Of The Anionic Polymerization Of Neopentylethylene Oxide, Albert Edward Meisinger

Dissertations

Kinetic data for the anionic polymerization of bulk neopentylethylene oxide were determined. The initiator used for this study was potassium t-butoxide. Polymerization runs were made at temperatures of 39.9, 60.0 and 80.3°C using monomer to initiator ratios of 50/1 and 20/1.

The polymerization reaction was found to follow pseudo first order kinetics up to about 60% polymerization and second order after this. The energy of activation for the propagation reaction was found to be 17.4 ± 1.2 K cal/mole and 18.5 ± 1.5 K cal/mole, respectively, for the pseudo first order and second order portions of the polymerization. The value …