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A Technique For Obtaining Very Efficient Dynamical Equations For On-Line Computation Of Joint Forces Of Robotic Mechanisms, Dennis A. Dohogne

Masters Theses

"In order to increase the operational speed and positional accuracy of robotic mechanisms, on-line force control has been proposed. Because of the complexity of exact dynamical formulations, real-time computation of joint forces may be too slow.

Since force control is accomplished with a dedicated computer, unique, dedicated sets of force equations are justified. An efficient force computation technique based on the algebraic expansion and recombination of exact dynamics formulations is presented. Developments of the robotics matrix notation and of a Lagrangian dynamics formulation are also presented. A generalized three link manipulator model is used to compare the computational complexities of …

Contouring And Analysis Of Rock Hardness And Point Load Strength Index Values For The Bethany Falls, Winterset, And Argentine Limestones In The Greater Kansas City Area, John Robert Cramer

Masters Theses

"A field study was conducted to evaluate the variations in selected physical properties of the Bethany Falls, Winterset and Argentine Limestones in the Greater Kansas City Area. On-site and laboratory testings of these rocks for hardness and strength were made. Data from the different sites were contoured to graphically illustrate changes in the rock properties geographically. Results of this study are presented with the hope that they may be useful preliminary information for rock excavation engineers working in the area.

The area covered by the study included Platte, Clay, Johnson, and Cass counties in Missouri, and Leavenworth, Wyandotte and Johnson …

A Field Experience Involving The Development Of A Handbook For Beginning School Board Members, Lynn R. Strack

Masters Theses

A field study involving the development of a handbook for beginning school board members, by the writer, under the direction of Dr. Matzner of the Eastern Illinois University Department of School Service Personnel, is summarized in this paper. A handbook for beginning school board members was developed to assist them in the difficult areas of school operations as designated by board members now serving school districts in central Illinois.

The field study involved gathering information from boards of education on the problems they encountered as beginning school board members. The problems were categorized into major topics and a handbook was …

The Development Of A Student-Parent Handbook For Lake Crest Elementary School, Oakland, Illinois, Ezra W. Smithson

Masters Theses

In 1947, a large number of very small school districts surrounded Oakland, Illinois each with its own school board. In 1948, Oakland and all or parts of these 16 districts were consolidated by the vote of the people into a single school district as permitted by State Law (1948) thus forming Oakland Community School District No. 5.

Three attendance centers, the Oakland Elementary School; the Hindsboro Elementary School; and Oakland High School were operated from 1959 until 1968.

A new Elementary attendance center was completed in 1968, and the old attendance centers in Oakland and Hindsboro were closed.

The new …

The Effects Of Training In Visual Cognitive Skills On Reading Comprehension, Valerie Joan Croll

Masters Theses

In an effort to design learning materials which de-emphasize the decoding process, and concentrate instead upon cognitive and critical thinking processes, picture study has been chosen as a potentially effective vehicle for providing delivery of programs for remediation of reading problems. The purpose of this study was to investigate the effectiveness of training in visual cognitive skills as an alternative remedial technique for increasing the reading comprehension of children whose reading skills are considered to be lower than expected due to a learning disability. The population was a group of children in grades four, five, and six (n=34) in a …

Understanding Needs And Concerns Of Black Students In Pursuit Of Higher Education, Thomas M. Caulfield

Masters Theses

The problem of this study was to increase the general publics' awareness of the difficulties Black Americans faced in pursuit of higher education.

The procedure was a twofold process. First, the writer reviewed some of the pre-college variables that affected the Black student. Second, the needs and concerns of the Black student at a predominantly White University were studied by the use of a questionnaire. The questionnaire was distributed to three groups on the Eastern Illinois University Campus. The first group was comprised of twenty-five Black students that were currently enrolled in the University. The second group was twenty Black …

Establishing The Essential Building Blocks For Understanding Collective Behavior, Janet L. Heitgerd

Masters Theses

It has been argued by researchers that collective behavior, as a field of study in sociology, lacks important theoretical and methodological developments. This has resulted in limited empirical knowledge of collective behavior. There exist many inadequacies in our present theoretical development. These include a failure to not only specify a social dimension of collective behavior, but also, to separate cause and effect, and to describe collective behavior. Scholars have argued that in the study of collective behavior, we are lacking sound, theoretical perspectives and definitions of collective behavior, which have resulted in poor and unsystematic observations of phenomena.

As a …

Communication, The Missing Ingredient, Rex W. Eddy

Masters Theses

This writer feels that communication is a very significant aspect of the educational process. Upon assuming the principalship at Winchester High School, action was undertaken to aid the development of good lines of communication between the administration, faculty, student body and community. Basically, four distinct steps were pursued in an attempt to develop and improve upon the communication system at Winchester High School.

The first step concerned itself with the development of a comprehensive new "Student Handbook." It was immediately obvious to this writer that the rules and regulations for the daily operation of Winchester High School needed to be …

Factors Influencing Reforestation Of Surface Mined Lands In Southern Illinois, Jill R. Medland

Masters Theses

Studies of surface coal mined lands have focused primarily on older lands mined prior to the enactment of reclamation legislation. Current laws will require extensive grading, soil replacement and revegetation. In order to more effectively reforest these lands, I have evaluated sites planted to woody species during the past decade.

The vegetational characteristics, as well as both avaian and small mammal populations of several reclaimed surface mined areas, differing in age and reclamation procedures, were compared. Success of planted trees ranged from 50 to 91% and survival varied with the species planted. There was no relationship between tree survival and …

Post Object Art And Sociological Influences On The Internal Processes Of Art Making, Steve Havens

Masters Theses

The purpose of this thesis is to discuss how external sociological factors inevitably have a profound effect on current art.

Much great art has been created against the flow of what is critically "popular" or "fashionable," but as these external factors become more prominent so the art work produced inevitably suffers.

The exhibition of Frank Stella's black and aluminum paintings at the turn of the 60's, in my own opinion, provided something of a landmark in the history of art. These works, in all their stark, flat, geometric nakedness denied both "form" and "content." They bare no illusions, no mythology, …

American Arts And Artists Of The Twentieth Century: 1900-1941, Janet M. Ryan

Masters Theses

"American Arts and Artists of the Twentieth Century: 1900-1941" is a prepared course of study developed for the high-school or junior-college-level humanities student. One to three literary, musical, and visual artists were selected to represent a decade. Because of the amount of material to be covered, and because of the limited time in which to present it, the first four decades of the twentieth century are considered.

The study consists of fifty, one-hour sessions which are divided into two units: "The First Two Decades: 1900-1918"; and "Between the Wars: 1919-1941." Each unit is made up of individual lessons devoted to …

A Plan And Guide For The Implementation Of A Computer Curriculum At Southeast Fountain Elementary School, Robert Joseph Baker

Masters Theses

This project was developed to provide an orderly plan for the introduction of microcomputers into the total curriculum. A computer curriculum was developed that became a vibrant part of the total experience at the elementary level. The uniqueness of an elementary curriculum has been the manner in which each subject area complemented the other. Science, for example, has not been taught as an independent content area. It has been taught as an extension of the reading program. Also computer instruction must be blended with the other disciplines.

It was the purpose of this study (1) to show a plan for …

Analyzing And Predicting Natural Circulation In A Snupps's Pwr Using "Retran-01", Roger Lee Boyer

Masters Theses

"The purpose of this project is to predict the natural circulation start-up test for the Standardized Nuclear Unit Power Plant System (SNUPPS). In order to make this prediction, a best-estimate, thermal-hydraulic computer code called RETRAN-01 is used.

The start-up test procedures require the simultaneous tripping of all four reactor coolant pumps (RCPs). Natural circulation is confirmed when the three test acceptance criteria have been met. Since this transient is symmetrical, a one-loop approximation of the Nuclear Steam Supply System (NSSS) is normally considered adequate in the nuclear industry. However, there is a concern over how to model the four actual …

Lead-Zinc Metallotects Of The Ozark Dome, Linda Leigh Mallery

Masters Theses

"This is a regional study of the relationship between Mississippi Valley-type mineral deposits and structural features of the Ozark dome which resulted in the description and classification of lead-zinc "metallotects". A more accurate delineation of the Ozark dome was accomplished by examining the gradient and structural contour lines of its Precambrian basement. A general background on the geology, structure, and evaluation of the Ozark dome was discussed along with the stratigraphy, structure, and ore deposits of the major lead-zinc districts of the Ozark dome in order to develop the background data for the application of the "metallotect" concept. The major …

Development Of Glass Microspheres For Radiotherapeutic Applications, Thomas A. Wetteroth

Masters Theses

"Oxide glasses make excellent candidates for radiotherapeutic microspheres used in liver cancer treatment because of their generally high chemical durability and safety of manufacture. From the compositions containing ~5 wt% P₂O₅ studied, magnesium alumino silicate glass microspheres and magnesium alkali silicate glass microspheres with 4 wt% ZrO₂ had acceptably low releases of both elemental phosphorus in deionized water at 50°C, and radioactive ³²P in human blood plasma at 37°C. The relative ranking of glass compositions in the elemental phosphorus leach test shows good agreement with the rankings of compositions in the radioactive ³²P leach …

Dreamworlds And The Art Of Illustration, Donna Crotchett

Masters Theses

While I was growing up, illustrations made deep impressions upon me. An illustration is a picture that explains and adds interest to the written part of a printed work such as a book. Often overlooked by others, for various reasons, this means of communication played a significant part in my life and art.

The history of illustration is a history of men and women, serious artists, who have produced an enormous amount of high-quality work. Many of their illustrations had their origins in fine art such as early religious painting and mythological themes. A large number of fine artists have …

Glass Formation And Properties In The Gallia-Calcia System, Glenn Whichard

Masters Theses

“The critical cooling rate for glass formation for melts containing from 37.5 to 68.0 mol % Ga₂O₃ varied from 310 ± 80°C/s to 855 ± 115°C/s. The crystallization temperature, microhardness, UV and visible transmission were measured. The density increased from 4.075 g/cm³ at 37.5 3 mol % Ga₂O₃ to 4.402 g/cm³ at 56.0 mol % Ga₂O₃. The refractive index, n_D, increased from 1.778 at 37.5 mol % Ga₂O₃ to 1.802 at 62.0 mol % Ga₂O₃. The IR spectra indicate …

Microcomputer Control Of A Model Robot System Using Programmable Pulse Width Modulation, Richard Eugene Wainwright

Masters Theses

"The hardware design of a model robot system for experimentation in microcomputer control is presented. A special interface board is designed to allow an Apple II Plus microcomputer to control a model robot system which consists of a three-jointed robot with an electromagnet end effector and a conveyor belt, with an optional vision system. A programmable pulse-width modulator is designed to drive the DC motors which operate the robot and conveyor belt. Improvements and additional uses for the model system are discussed"--Abstract, page ii.

Sintering Of Lif-Fluxed Srtio₃, Marie-Christine P. Proudian

Masters Theses

"Lithium fluoride (LiF) is used to enhance the sinterability of perovskites, as it results in the formation of a liquid phase. In this study, the mechanism and kinetics of sintering for LiF-fluxed strontium titanate (SrTiO₃) were investigated. The Sr/Ti ratio was varied between 0.98 and 1.03, and the LiF content in the green compact ranged from 0.5 to 2.0 weight percent. Sintering was conducted at temperatures between 695° and 925°C for isothermal dilatometric shrinkage measurements for time intervals of 6000 seconds or less. Weight loss, shrinkage, density and porosity measurements were conducted on samples isothermally sintered between 690° …

Geochemistry And Petrology Of The Cold Springs Breccia Formation, Wichita Mountains, Oklahoma, Dana Marie Vidrine

Masters Theses

"In the Wichita province of southwestern Oklahoma the Cold Springs Breccia Formation, exposed in a 15 km² area in Kiowa County, is characterized by blocks and pillows of microdiorite surrounded by pink granite. Intimately associated with this mixed zone are sill-like bodies of intermediate rocks, granodiorites and tonalites. The intermediate rocks have been interpreted as hybrids produced by assimilation of microdiorite by granitic magma, and the mixed zone has been interpreted as an intrusion breccia formed at the margins of the hybrid sills.

Major, minor and trace element data have been obtained on a suite of granites, intermediates, and …

Mineralogy And Chemistry Of The Tuff On Pritchards Station, East-Central Nevada, Stanley Christopher Hatfield

Masters Theses

"The Tuff of Pritchards Station in east-central Nevada is a little-known ash-flow tuff of limited areal extent. A detailed study of this tuff was conducted to determine if it is a distinctive unit which can be correlated from one locality to another.

Mineralogical and chemical data indicate that the Tuff of Pritchards Station displays significant lateral variability. Lateral variations in mineralogy include changes in total crystal content and the amount and grain size of individual minerals present over the area studied. Chemically, the tuff is a quartz latite to rhyodacite in composition. However, certain elements, most noteably titanium, show considerable …

Control Of Rock Fragmentation Through Explosive Coupling, Timothy Wayne Warden

Masters Theses

"Both detonation pressure and borehole pressure, resulting from an explosion within blastholes in rock, perform specific functions in the fragmentation of the rock and the generation of ground vibrations. The results of previous investigations would suggest that control of these pressures in the borehole would, to some extent, control the size distribution of the blasted particles. One method of influencing detonation and borehole pressures is by varying the hole diameter in relation to a constant charge diameter, called decoupling, and by varying the medium between the explosive charge and the rock.

This investigation examined the effects of geometric coupling, which …

Separation Of Mineral Particles In Cyclones Under The Influence Of A Magnetic Field, Kwasi Amoako-Gyampah

Masters Theses

"The separation of mineral particles in a cyclone under the influence of a magnetic field was investigated using an electromagnetic - cyclone arrangement. Feed pulps of dolomite and magnetite were used in the study. Two different cyclone types were investigated: An air-type cyclone arrangement and a conventional cyclone arrangement. Magnetic field strengths of 0 to 3000 gauss (0 - 0.3 Tesla) were used in the study by varying the current through the coils of the electromagnet .

The parameters evaluated in the study were the grades and recoveries of the magnetic concentrates produced, the enrichment ratios, the improvement in recoveries …

Mechanical Properties Of High Strength Sheet Steels, M. Brad Parks

Masters Theses

"In recent years fuel economy has become one of the major criteria for the design of automobiles. In order to improve the efficiency of their vehicles many automotive designers are substituting high strength sheet steels for traditional materials of lower strength. This thesis discusses experimental work which was done to determine the representative mechanical properties and stress-strain relationships of a select group of high strength sheet steels with nominal yield strengths ranging from 80 to 140 ksi. The results show that high strength sheet steels are quite anisotropic with the variation in measured properties depending on the type of sheet …

The Effect Of Selected Alloying Elements On The Hardness And Microstructure Of Ductile Cast Iron, Chi-Hua Edward Tseng

Masters Theses

The effects of cooling rate and alloying element on the matrix structure, nodule count and hardness have been studied in this investigation.

Recommendations for producing ferritic ductile iron have been made and the relationship between hardness and pearlite percentage has been obtained in this study.

Defect Chemistry Of La-Doped Strontium Titanate, Brian Keith Flandermeyer

Masters Theses

"Thermogravimetric measurements as a function of oxygen activity were performed in the temperature range of 1200°C to 1400°C on a series of La-doped SrTiO₃ compounds. A model postulating the crystallographic accommodation of ionic defects induced by the donor under oxidizing conditions is assumed. Thermodynamic calculations were performed to compare this model to the experimental results with reasonable success"--Abstract, page iii.

Application Of The Impact Approximation To Collisional Line Shifts In Na-Rare Gas Systems, Mahdi Azougui

Masters Theses

"This dissertation deals, mainly, with the line shifts of the excited atoms of sodium induced by collisions with argon atoms. The general work is based on the study of both, broadenings of the lines and line shifts with a particular emphasis on the latter. A review is given for the case of very large principal quantum numbers N; then the binary collision method is detailed for low transitions (N ≤ 6) where the computed values are in very good agreement with the experimental results obtained by Krebs and Schearer.¹ This method breaks down at larger N. Next, a modification …

A Study Of Chaucer's Pandarus: His Character, His Actions, His Motives, Zita Cobble

Masters Theses

No abstract provided.

The Perception Of Coincidence: Artistic Symmetry In The "Wandering Rocks" Episode Of James Joyce's Ulysses, James A. Scruton

Masters Theses

James Joyce's Ulysses, the most influential novel of the twentieth century, has often been criticized for its fragmentation and complexity. Impenetrable to some readers, misunderstood by others, Ulysses bears within its eighteen episodes a symmetry of subject and form that at once clarifies and multiplies the meanings to be found there. Richard Ellmann calls Joyce's theory of art "the perception of coincidence," a theory best exemplified by "Wandering Rocks," the central episode of Ulysses. The use of "symmetrical coincidence" in ''Wandering Rocks" can be seen in two ways: 1)the internal structure of the episode, and 2)its location among …

Freedom At Midday: Elements Of Existentialism In The Works Of Ambrose Bierce, Sharon A. Winn

Masters Theses

Ambrose Bierce exhibited a number of elements of existential thinking both in his life and in his writing. But he was ambivalent about his philosophical stance, and it is difficult to know whether he was the utter pessimist he has been called, or whether his attitude toward the universe admitted a certain optimism.

Much of Bierce's thought parallels modern existentialism, which has three main tenets: a belief that there is no God and the universe is, therefore, irrational; a descent into despair; and a choice of life or death.

Bierce insisted that the universe is irrational, and he repeatedly discussed …