Digital Commons Network^™

A Communication Channel: Its Existence And Its Use, Michael Lee Klipp

Masters Theses

No abstract provided.

An Empirical Study Which Measures Principals And Teachers In Their Attitudes Toward, And Their Perceptions Of The Leadership Dimensions Of Initiating Structure And Consideration, Joseph Renick Chmeleck

Masters Theses

No abstract provided.

Power Parity In Dyadic Disputes: Towards An Analysis Of International Organization Success, Jerry D. Florence

Masters Theses

No abstract provided.

Descent Into History: Chicago, Ideologies And Repression 1917-1918, Richard Allen Morton

Masters Theses

No abstract provided.

A Unit Hydrograph For The Missouri Ozark Region., Melvin G. Schaefer

Masters Theses

"Eleven small watersheds from the Missouri Ozark region are used in generating a synthetic unit hydrograph. The analysis is composed of three parts: First, a prediction equation is developed which correlates the time lag parameter with the physical features of the watershed. Second, an equation is developed which predicts the peak flow ordinate for 30-, 60- and 120-minute unit hydrographs. Third, an average dimensionless unit hydrograph is determined"-- Abstract, p. iii

The Availability And Development Of An Automated Accounting System For Small Businesses., Margy Rice Beckmeyer

Masters Theses

"A good accounting system is a very essential part of the successful operation of a small business but is often lacking. Therefore, the objective of this research is to furnish a general automated accounting system suitable for use by the small business firm.

To determine the feasibility, a statistical survey was made to evaluate the availability of automated accounting systems now available to small business. The results of the survey suggest that computer systems are presently available to small business firms at economical prices, but to minimize cost the small firm may need to supply its own accounting program.

The …

A Study Of The Potential Performance Improvements Available From The Ga(W)-1 Airfoil As Compared To The Naca 2412 Airfoil., Robert Keith Rice

Masters Theses

"A direct comparison of the current NACA 2412 section general aviation airfoil and the recently developed GA(W)-1 airfoil was conducted in the University of Missouri - Rolla's subsonic wind tunnel. Finite aspect ratio performance of both airfoils equipped with 30 percent chord flaps was studied to predict possible performance gains for general aviation aircraft available from the GA(W)-1 section.

Results show that the NACA 2412 airfoil with a standard slotted type flap gives a maximum lift coefficient of 1.88 with the flap deflected 30 degrees and a test Reynolds number of 4.Sxl0 5 based on wing chord. The GA(W)-1 section …

An Experimental Study Of Mass Transfer To Droplets In Aqueous Polymer Solutions., Richard Gerard Schafermeyer

Masters Theses

"Instantaneous and time-average mass transfer coefficients for 1 the free-fall period was obtained for transfer of iodine from nonNewtonian continuous phases to carbon tetrachloride drops. The nonNewtonian continuous phases were aqueous solutions of carboxymethyl cellulose and carboxy polymethylene. Although a few exceptions were found, the continuous phase mass transfer coefficients were, in general, found to decrease with increasing time of drop contact. Comparisons of the experimental data to theoretical relations showed that changes in drop internal circulation probably occurred for that data which showed a time effect for the mass transfer coefficient. Several explanations for the time effect were offered, …

Computational Models Of Learning., Kenneth Jesse Marse

Masters Theses

"An investigation is made into the use of techniques which would normally be described as learning if encountered in a human being. A literature review of several subject areas including game-playing computer programs, automatic control systems, pattern recognition methods, and biological modeling is performed, with the purpose of extracting and examining those processes which exhibit learning. A general model of the type of learning most widely utilized in these areas is constructed and used to compare and contrast specific models which describe the learning techniques employed. Some specific models which do not exhibit learning as described by the general model …

An Organizational Structure For A Highway Agency., Frank L. Carroll

Masters Theses

"Highway agencies in the past have been organized to give primary consideration to economic factors. Th e National Environmental Policy Act of 1969 changed this concept by requiring all states to reevaluate their highway organizations in order to ensure that social and environmental factors, as well as economic factors, are considered.

Various state highway organizations are analyzed to determine the way in which consideration is given to the social, economic and environmental effects of design, and a model organizational structure for a highway agency is developed.

Because considerable difference exists in the ways in which the states have approached the …

An Investigation Into The Extent Of Implementation Of Operations Research Techniques For Inventory Control In Industry., Edward Allen Scarff

Masters Theses

"The object of this research is to investigate the techniques currently utilized for controlling inventories in industry. The various significant methods of inventory control in use today are presented and the strengths and weaknesses of these methods are assessed.

A survey of the Fortune 500 companies was conducted to determine the methods of inventory control in use today by industry. In addition, selected production personnel of representative companies were interviewed to determine the advantages and disadvantages of certain inventory control methods they use.

The results of the survey and the interviews are presented, and an analysis is made. Conclusions are …

Effects Of Colloidal Materials And Polyelectrolytes On Carbon Adsorption In Aqueous Solution., Jack Taylor Garrett Jr.

Masters Theses

"The purpose of this study was to investigate the effect of certain colloidal materials and long-chain polyelectrolytes on the adsorption efficiency of some selected activated carbons which were manufactured from both coal-based and lignite-based materials. Phenol was used as the adsorbate to determine the adsorption efficiency.

At the beginning of the study, four brands of activated carbon (i.e. Filtrasorb 400, Darco, Norit, and Witco 256) were tried, based on the preliminary adsorption data, two activated carbons were subsequently selected for use throughout the entire study. These were Calgon's Filtrasorb 400 and American Norit's Norit activated carbons. The former represents a …

A Study Of Several Substitution Ciphers Using Mathematical Models., Wanda Louise Garner

Masters Theses

"This paper will consider vector and matrix representations for several polyalphabetical substitution ciphers. Classical ciphers such as the Vigenère, the True Beaufort, the Variant Beaufort, and the autokey will be included. We shall also discuss ways to mathematically vary a substitution cipher. In addition, we shall employ our mathematical representations to decipher a fixed matrix substitution cipher"--Abstract, p. ii

Image Detection In Signal Dependent Noise., Robert D. Laramore

Masters Theses

"This thesis deals with the detection of two-dimensional signals in the presence of noise, including signal dependent noise. The object to be detected and the background are assumed known a priori. A decision rule based on a likelihood ratio test is obtained and the associated probabilities of detection and false alarm are evaluated. This is done first in general terms, where neither the form of sampling nor the model used for noise is specified. Then results are obtained for three examples: Poisson noise, signal dependent Gaussian noise, and binomial noise. Finally, the degradation resulting from a point spread function is …

Electroless And Chemical Metal Deposition On Human Tooth Enamel., Richard Doyle Christie

Masters Theses

"Initial investigations have confirmed the feasibility of depositing an adherent metal film onto tooth enamel. Such films might be used as pit and fissure sealants in preventive dentistry, with denture or orthodontic work, as an intermediate substrate with various organic or inorganic restorative materials, or other such areas. The process employs chemical solutions containing ions of the metal to be deposited and suitable reducing agent solutions.

To date, metallic copper and silver films have been plated onto teeth in vitro. The deposits are quite adherent and appear to exhibit the conductivity, crystal structure, luster, hardness, and other chemical and physical …

Disposal Of Lead And Zinc Cationic Wastes On Soils., Stephen Melvin Linnemann

Masters Theses

"The sorption and desorption of lead and zinc on soil samples from the "New Lead Belt" of southeastern Missouri and from Springfield, Missouri, were investigated using both column and batch systems. These cations were selected for study because of the possible effects which soil pollution in the "New Lead Belt" mining region could have on shallow aquifers and because both metals are utilized in the electroplating industry.

It was found that soil has the ability to sorb lead and zinc; however, the cation-exchange capacity (C.E.C.) of the soils studied was not fully satisfied, though there was evidence that i f …

Project Program Evaluation Technique For Real Property Maintenance Activities., Richard Walter Graumann

Masters Theses

"Managers of Real Property Maintenance Activities often only consider workmanship and customer satisfaction when evaluating the overall effectiveness of their contracted maintenance and construction projects. For multi-functional organizations where top management is responsible for the execution of several hundred concurrent, unrelated, unique, and widely dispersed projects, these subjective factors are not adequate to conduct a meaningful evaluation.

Top management must continually assess not only the progress of contracted work, but also the engineering design and contract administration functions. Published material has given little attention to the need for aggregating project data in a multi-project environment to provide management with the …

Experimental Investigation Of Supporting Wire Interference Effects In The Supersonic Near Wakes Of Slender Bodies., Dale M. Pitt

Masters Theses

"It is generally recognized that the presence of a model support sting i s likely to affect the model's base pressure and wake characteristics. The use of a wire-supported model is usually relied upon to obtain minimum disturbance measurements in the model's wake. Investigations into the disturbances caused by different size supporting wires have been conducted with the use of a 16-degree wedge and cone. The tests were conducted in the University of Missouri-Rolla axisymmetric supersonic wind tunnel at Mach 3.15, and at a Reynolds number of 2.14 X 10⁶ per inch. Pitot pressure traverses were made in the …

A Strategic Planning Model For Implementing Community Development Block Grant Programs., John M. Lang

Masters Theses

"As problems of metropolitan areas have multiplied, the federal government has been drawn into an ever-increasing intimate funding association with city governments. Although federal funding for ii urban problems may have been considered a panacea by some, most local government agencies have now discovered that their problem has shifted in emphasis from where to find funds to that of meeting federal standards and requirements of application in order to get the funds.

The impact of federal programs on local government management is evident in the recently enacted federal Housing and Community Development Act of 1974. Title I of the act …

A Method Of Predicting The Economic Effects Of Highways In Undeveloped Countries., Mohamed Magzoub Abdallah

Masters Theses

"This paper reviews the findings of the socio-economic impact studies pertaining to land-use changes. An attempt is made to explain, through land-use studies, the relationship between the past and future development of the City of Rolla, Missouri, and the system of highways serving the city, The relationship between land-use changes, expressed in active units rather than areas, and the level of activity related to those changes, rep resented by 0-D traffic volumes, is studied for Rolla and the difference in the behavior of this relationship in undeveloped countries is discussed"-- Abstract, p. ii

A Parametric Investigation Of The Validity Of 1/25 Scale Automobile Aerodynamic Testing., Marvin Eugene Doberenz

Masters Theses

"Wind tunnel tests have been performed measuring the aerodynamic forces and underbody boundary layer profiles for 1/25 scale models. The trends of the force coefficients with Reynolds number, the underbody boundary layer profiles, and the influence of the ground plane boundary layer on the force coefficients of small-scale models has been shown to be similar with previous results from larger models. This study has shown the usefulness of small-scale models for parametric studies of automobile aerodynamics. The agreement of the data with previous results, also supports the possih1lity o f a method of correction for boundary layer growth on fixed …

Theoretical And Experimental Investigation Of A Viscous Ring Nutation Damper., Roy Alexander Campbell Iii

Masters Theses

"The dynamics of passive dampers applied to high s peed gyro systems is reviewed briefly and the partially filled viscous ring nutation damper is investigated. Particular attention is given to 1 the broken ring or nutation synchronous configuration where the fluid moves as a rigid slug and the damping is greatest. In this mode the damping is assumed to be viscous and expressions for a linear damping constant are presented. Data from an experimental, high-speed gyro is used to verify the theoretical analysis"-- Abstract, p. 1

A Study Of Trace Organic Emissions In Mining And Milling Wastewaters In The New Lead Belt Of Southeastern Missouri., Alan James Callier

Masters Theses

"The primary objective of this study was to evaluate the trace organic contributions by two lead and zinc mining and milling operations in Southeastern Missouri. A secondary objective was to evaluate a reverse osmosis-solvent extraction method for use in recovering trace organics.

Trace organics were recovered in the first phase of the study following procedures as outlined by the American Society of Testing and Materials (ASTM), with chloroform and benzene being used as the solvents. The data indicated that the milling waste contained a larger concentration of trace organics than the excess mine water. Furthermore, it was shown that recycling …

A Study Of Trace Organics And Trace Organic-Bound Metals In Raw And Finished Waters., Robert Lee Stewart

Masters Theses

"The main objectives of this study were: (a) to prepare a comprehensive review and evaluation of the literature pertaining to trace substances, with emphasis on their status in water supplies, health effects, and fate in treatment; ( b) to establish the methodology needed for measuring trace metals in trace organic substances; and (c) to determine the metal content of organic extracts recovered from surface, subsurface, and finished waters.

Raw and finished water was obtained at the Sedalia, MO, water treatment plant, and 5 sources were sampled (3 surface, 1 well, 1 plant-treated). The 0-CA* and SEM procedures were employed to …

Using Ibm's Information Management System To Implement A Relational Data Base, Melvin Arthur Rushton

Masters Theses

"A relational model of data has been the topic of several papers which deal with the question of the underlying design philosophy of data base systems. E. F. Codd, C. J. Date, and others have discussed the application of relation theory to formatted data, the objectives of such an approach, normalization of relations, and languages for manipulating the model (data sublanguages). Few papers have delt with storage constructs or access techniques for a relational data base. Indeed, it was not necessary that they do so, for the user of such a system is only concerned with the information available in …

Benton Harbor Area Schools Major Internship, Edwin R. Dass

Masters Theses

No abstract provided.

Observations Of Student Services For The Development Of Human Potential In Selected Community Colleges And Universities, Festus H. Valentine

Masters Theses

No abstract provided.

Influence Of Business Faculty Upon Students’ Attitudes: A Partial Replication Of Edgar Schein’S Study Of Attitude Change During Management Education, Robert Eugene Ashenhurst

Masters Theses

No abstract provided.

Modernization In Micronesia: Acculturation, Colonialism And Culture Change, Kirk L. Gray

Masters Theses

No abstract provided.

Natural Areas For Community Colleges: Their Role In Environmental Education, John Henry Gerdes

Masters Theses

No abstract provided.