Digital Commons Network^™

Boom To Bankruptcy The Story Of The Manistee And Northeastern Railroad, Donald Stroup

Masters Theses

No abstract provided.

Buckling Strength Of Titanium Alloy Columns In The Elastic And Inelastic Range, Richard O. Rintoul

Masters Theses

"The purpose of this study is to find experimentally the buckling strength of titanium alloy (Ti.-6Al.-4V.) columns and to determine a suitable equation to be used in the design of titanium columns in the elastic and inelastic range.

Effective length over radius of gyration ratios of from 178 to 16.1 were studied. High strength steel plates with cylindrical radii milled in the faces served as column ends while cylindrical radii ends were milled on the columns. SR-4 strain gages were used at the mid-points of all columns to determine lateral deflection and predict a theoretical buckling stress. Actual column loads …

Matching Of A Horn Antenna To Its Dense Surrounding Media By The Use Of Artificial Dielectric Methods, Paul Arthur Ray

Masters Theses

"The purpose of this thesis is to design an artificial dielectric slug to match a horn in a media such as water and to discuss a method of determining experimentally its dielectric properties. The design is based on known artificial dielectric methods. The method of determining the dielectric properties is by microwave waveguide reflection techniques. This thesis deals with the theoretical aspects and suggests an experimental method of determining the practicability of such a matching method"--Abstract, page ii.

Petrology And Mineralogy Of The "Old Workings Area," El Salvador, Chile, Bertis James Vander Schaaff

Masters Theses

"The 'Old Workings Area,' so called for its early mining by the Incas, is located 4 1/2 miles northeast of the El Salvador Porphyry copper deposit, the third largest copper producer in Chile. The area mapped in this study is shown to consist of rhyolite pebble conglomerate, two volcanic flows, andesite and rhyolite porphyry, and two intrusions. Quartz porphyry and tourmaline-bearing breccia. Petrographic study of surface and drill core rock samples confirms the field nomenclature used for the five rock types. All of the rock types are altered, but the quartz porphyry and andesite are the most intensely altered. Both …

A Study Of The Preparation Of Student Teachers For The Use Of The Instructional Materials Center In The Buzzard Laboratory School, Virginia Hagebush

Masters Theses

No abstract provided by author.

A Survey Of The Audio-Visual Services For Instruction On The Campus Of Eastern Illinois University, Earl W. Jeffers

Masters Theses

No abstract provided by author.

An Evaluation Of The Placement Service At Eastern Illinois University, Charleston, Ill., Gary E. Price

Masters Theses

No abstract provided.

A Rhetorical Analysis Of Selected Speeches For Special Occasions, Ronald George Martin

Masters Theses

No abstract provided.

A Terrain Study Of The Bloodland Quadrangle, Pulaski County, Missouri, Lawrence E. Mullins

Masters Theses

"This study is an investigation of the environmental conditions which affect cross country movement for tracked military vehicles on a major portion of the Fort Leonard Wood Military Reservation.

The terrain has been mapped from the trafficability standpoint by an investigation of the geology, topography, pedology and restrictive vegetation characteristics of the Bloodland seven and one-half minute quadrangle. The terrain analysis was accomplished by a combination of map study, laboratory investigation, photo interpretation, and direct field study of representative soil and vegetation types. The conclusions of this analysis are presented in the form of a cross country movement map"--Abstract, page …

Piezometric Levels And Shallow Aquifers, Dillon And Meramec Spring Quadrangles, Missouri, James Hugh Crouch

Masters Theses

"Little is known about groundwater in carbonate rock; quantitative data about limestone and dolomite aquifers are almost non-existent. Objectives of this study are: identification of shallow aquifers, and yield, occurrence, and piezometric level of groundwater in cherty dolomitic rocks in eastern Phelps County, Missouri. Area studied comprises of the 7.5-minute Dillon and Meramec Spring Quadrangles. The data used were derived from water well logs, interviews with well drillers and owners, and a previously available geologic map.

The Jefferson City, Roubidoux, and Gasconade formations are aquifers. Groundwater in the Jefferson City formation is perched. West and north of Dry Fork creek, …

The Design And Construction Of An Instrument For Calibrating Accelerometers, Richard Rabenau

Masters Theses

"The purpose of this work was to design and construct a facility to calibrate accelerometers. A ceramic piezoelectric shaker and modified Michelson interferometer together with necessary electronic equipment were used. The system produced accurate and stable acceleration at five discrete points from 1,000 to 5,000 cycles per second. the maximum calibration levels were approximately 50 g's"--Abstract, page ii.

Infinite Beams On An Elastic Foundation, Shi-Peing Chang

Masters Theses

"In this paper a partial differential equation for the analysis of beams resting on an elastic foundation under dynamic load is presented. A solution for this equation is derived, and solutions for various boundary conditions of infinite beams resting on an elastic foundation are discussed. The application of the equation is demonstrated by an example of a moving load traveling along an infinite beam"--Abstract, page ii.

Field Permeability Determination Of Partially Saturated Fine Grained Soil, Edward G. Rapp

Masters Theses

"The determination of water permeability through a soil is necessary to estimate seepage losses from small reservoirs. At the present time, the methods available to conduct this determination in partially saturated fine grained soils are expensive and in most cases not commensurate with the cost or importance of the individual structure. This investigation was conducted to evaluate the use of a proposed, potentially inexpensive field procedure in this situation. A modified borehole apparatus was utilized in field tests to determine the permeability of a partially saturated soil deposit in place. Undisturbed samples from the same location were tested in the …

Geology, Geochemistry And Genesis Of Selected Skarn Deposits, Northern New Brunswick, Canada, Donald John Bachinski

Masters Theses

"An exhaustive geological and geochemical study is presented of magnetite-chalcopyrite skarn deposits occurring within the thermal aureole of the Nicholas Denys quartz maonzonie-granodiorite stock. The deposits are crudely lenticular and occur in metamorphosed impure limestone and siliceous, in part limy, argillite-greywacke. These are now represented by andradite-epidote-diopside-calcite skarn and cal-silicate to horn-felsic rocks respectively. Both deposits are spatially related to the Main fault of the Rocky Brook-Millstream fault system; late, generally northwest trending transverse faults are conspicuous and are deemed of importance in ore localization"--Abstract, page [ii].

A Study Of The Work Functions Of Nigerian Industrial Technicians, Olugbenro A. Ajayi

Masters Theses

The Problem and Its Background

Introduction

A curriculum can be developed in several ways. The simplest method is to use the curriculum of another institution without modification. The hazard of such an approach lies in the possibility that the curriculum may not be a good one or, even if satisfactory for the original institution, may not fit into the conditions of the setting where it is to be used. For example, entrance requirements for institutions vary from country to country and from one institution to another.

Another method is to study a number of curriculums and develop a composite curriculum …

An Investigation Of The Effect Of Auditory And Combined Auditory-Visual Cues Upon Judged Intelligibility Of Artificial Larynx Speech And Esophageal Speech, Mary Ellen Carder

Masters Theses

Introduction

Surveys have shown that the incidence of total laryngectomy, surgical removal of the larynx, has increased steadily in the United States since 1947 when a total of 846 cases were reported (19, 20), to the present time when cancer registries indicate that about 4,400 new cases of cancer of the larynx are discovered annually (13). While it is estimated that in the United States at the present time there are 15,000 to 20,000 individuals who have undergone surgical removal of the larynx due to a carcinomatous condition of that organ (27), it is probable that the total population of …

A Study Of Certain Effects Of Local And Topical Anesthetics On The Speech Of Stutterers, Charles Michael Gross

Masters Theses

Chapter I

Introduction

Introductory Statement

The ability to monitor one's own vocal output is essential if one is to produce and maintain normal speech. Speech would become progressively defective if one were unable to detect errors in voice, articulation, or rate. The preservation and maintenance of speech require the coordination of several automatic systems in the human body. One of these systems includes the tactual-kinesthetic purpose of defining the tactual-kinesthetic role and its relation to feedback cues in the production of speech.

Since speech is controlled by more than one automatic feedback system, it is essential that an investigation of …

Ailred Of Riveaulx The Consistency Of His Life And Writings With His Thought And His Profession As Cistercian Monk, Tyrrell Hughes

Masters Theses

First paragraph:

The author confesses to a profound emotional involvement with AiIred of Rievaulx, Saint of the Church and man whose love was charity, the love that is like God's love. But this zealousness on his behalf was born after analysis of and reflection on Ailred's life and writings, comparing these judgments with the treatments he has received at the hands of various scholars, among them the fine names of David Knowles, F.M. Powicke, C. H. Talbot and Aelred Squire. The initial reaction induced by the comparison was indignation at the injustice done AiIred, but much more at the seeming …

Relationship Between Home Management And Ability To Manage Interpersonal Relationships, Carol Rathbun Fites

Masters Theses

Chapter I

The Problem and Its Background

It is the purpose of this chapter to first present some general concepts pertaining to management, and then to present the problem explored in this study. The purpose of the problem, basic assumptions made, and definition of terms used in the investigation are explained. Also included is the background and importance of this study. A summary concludes the chapter.

The Affect Of Simultaneous Auditory Stimulation On Absolute Visual Sensitivity, Leonard M. Fisher

Masters Theses

No abstract provided.

An Investigation Into The Possible Relationship Between Phonic Ability And Articulatory Defectiveness In University Students, Ralph W. Redel

Masters Theses

Introduction

Background

In 1938, Travis and Rasmus commented on a particular problem in pathology. They said, "From every angle, an adult with a disorder of articulation presents a much more serious problem than a child with such a defect" (40. p. 218). Their statement is an appropriate current evaluation of the same problem. The American Speech and Hearing Association's Committee on the Midcentury White House Conference reported that the incidence of articulatory disorders was equal, 3.3% for both children and adults in the United States (1). In 1962, Dopheide found that 36 out of 2,087 of the freshman entering Western …

An Investigation Of The Influence Of Certain Phonetic Contexts Upon Articulation Of The /S/ Sound, Theodore J. Peters

Masters Theses

Chapter I

The Background and Purpose of the Study

Introduction

Clinical experience as well as considerable research, which will be discussed later in this chapter, has shown that children are inconsistent in their misarticulation of speech sounds. Children who typically misarticulate a sound may, nevertheless, articulate the sound correctly in certain words. Several authors have suggested that these occasional correct productions of the usually misarticulated sound can be useful in therapy. For example, in a discussion of therapy techniques Van Riper (32, p. 273) has recommended the use of "key words" in helping a child correct his articulation errors:

Although …

Group Cohesiveness And Group Productivity, Michael M. Makedonsky

Masters Theses

Group Cohesiveness and Group Productivity

Cartwright and Zander (1953) distinguished at least three different meanings in their intuitive and operational descriptions of group cohesiveness: (a) attraction to the group, (b) morale, and (c) coordination of efforts of group members. Others have attempted to classify meanings of cohesiveness into two general categories. One category of definitions centers chiefly on particular aspects of group behavior or group process. Here, the meaning of cohesiveness refers to "sticking togetherness," productivity, task involvement and good team work. A common observation is that members of a cohesive group display a feeling of "we-ness" or "togetherness," meaning …

Intermediate Geography Curriculum Of Selected Schools: A Comparative Study, Dale D. Workman

Masters Theses

No abstract provided.

The Indole Acetic Acid Oxidase Of Hygrophorus Conicus., Dilip N. Patel

Masters Theses

"The purpose of this investigation was to determine an assay method for measuring the activity of the indole acetic acid oxidase present in Hygrophorus conicus. This enzyme converts tryptamine or indole acetic acid (IAA) into oxindole acetic acid (OIAA).

An assay method for measuring the activity of the enzyme was developed based on the spectrophotometric measurement of tryptamine, IAA, and OIAA. Several other assay methods were tried. The colorimetric method of Gordon and Weber ^(l4) was found to be useful for a quantitative determination of IAA and was insensitive to OIAA. Paper chromatography proved to be useful as a qualitative …

Optimum Zero-Memory Nonlinear Filter, Benjamin Shaw-Hu Wang

Masters Theses

“The purpose of this report is to review the basic work described by Zadeh insofar as systems of class N₁ are concerned and to apply his general results to a specific problem in which a non-linear filter is mandatory simply because the linear filter is essentially ineffective. The ineffectiveness stems from the fact that the autocorrelation function of the signal plus the noise has essentially the same variational character as the signal alone. Therefore, the transfer function of the linear filter turns out to be simply a constant. Thus, the output of the linear filter is just an attenuated …

Artifact Filter., Kent William Swearingen

Masters Theses

"Peripheral blood pulse monitors are highly susceptible to noise-artifact-- in their present stage of development. The purpose of this thesis is to demonstrate a feasible means for filtering the artifact, using existing monitors. Since no peripheral pulse monitor (transducer) was available for experimentation, a simulated test input was devised with frequency variations from JO cycles/minute to 1.50 cycles/minute.

The filtering circuit predicts the time location of each input pulse. The location of the prediction is governed by the accuracy of the preceding prediction. This is controlled by an R-C timing circuit with a Schmitt Trigger and relay.

From the data …

The Dielectric Properties Of Thallium Nitrate., Gene E. Gowins

Masters Theses

"The purpose of this research was to investigate the dielectric behavior of thallous nitrate and to determine whether it belongs to space group Pbnm or to Pbn2.

The growing of single crystals of thallous nitrate which are suitable for dielectric measurements is difficult because the crystals are prone to initiate a dendritic growth habit. In the present work single crystals of thallous nitrate were obtained, however, by slow evaporation of an aqueous solution at 55 degrees centigrade. The crystals were plates, not larger than 8 x 8 x 2 mm, whose principal faces were subsequently indentifled as (001) planes. The …

On Optimum Receiver Using Decision Theory, Philip T. Tai

Masters Theses

“In recent years communication engineers have given increased attention to the study of communication through random media. The name random is used to describe a medium the properties of which are stated only in a statistical sense. For example the impulsive response of a certain medium may only be known as one of an ensemble of possible impulsive responses; the particular member of interest being drawn up according to some statistical rule. In other words there exists some "uncertainty" concerning the characteristic description of the medium. Significant work on these problems has been done by Price and Turin. Related work …

The Resolution Of Two Known Signals In White Gaussian Noise., Peter Cheng-Fang Wang

Masters Theses

"The problem of resolving two signals F1(t) and F2(t) in white Gaussian noise n(t) is treated here as a problem in statistical decision theory. We assume a situation in which one of two similar signals is present and an observer is asked to make a decision concerning which of the signals is present with a tolerable probability of error. The observer is allowed to use the best system which he can design for this particular purpose. Of course, this observation will be disturbed by noise and therefore, the observer is led to ambiguous selections. It is apparent that the optimum …