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Vapor-Liquid Equilibrium Of Ao4 Solvent, John J. Rolando

Theses and Dissertations

The major purpose of this study was to determine the vapor-liquid equilibrium of A04 (anthracene oil #4) solvent at typical coal liquefaction operating conditions. The experimental apparatus used was the University of North Dakota's single-stage, hot charge, batch autoclave system which was specially designed to simultaneously sample both liquid and vapor phases. Six autoclave runs were made according to the following test matrix: (a) one run to determine the vapor pressure of A04 at temperatures ranging from 20 to 440 C, and (b) five time sample runs to determine the AO4 vapor-liquid equilibrium distribution at temperatures ranging from 300 to …

Major Field Change Of College Students: Academic And Sociological Correlates, Dawn R. Rorvig

Theses and Dissertations

Purpose: The purpose of the study was to identify academic and sociological correlates which may determine speci f ic student populations showing tendencies to change major f ields.

Procedure: The research sample (N = 59 7) consisted of University of North Dakota students who were f i rs t - t ime, full- time students in the 1982 fall semester and who continued enrollment through or graduated by the 198 6 spring semester. These students also had an ACT composite score on record.

Selected information was obtained from the Student Profile Section of the American College Test (ACT) Assessment , …

A Matter Of Choice: Free Will In Paradise Lost, Paradise Regained, And Samson Agonistes, Avis Corrinne Dyrud

Theses and Dissertations

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Milton’s use of the free will doctrine in his poetry reveals its importance in his theology. Free will is also an integral part of the meaning of the three biblical narratives—-Paradise Lost, Paradise Fegained, and Samson Agonisfea—which are dealt with here, alt! ough different aspects of free will are central to each. The primary purpose of this study is to provide evidence of Milton's theological stance regarding free will in the three poems as well as in the relevant prose writings, particularly in Christian Doctrine, Milton's work of systematic theology.

A secondary purvose of this study is to trace …

Vapor-Liquid Equilibrium Of A Simulated Lignite Liquefaction Product Stream, Gregory M. Krause

Theses and Dissertations

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This thesis details the vapor-liquid equilibrium of a simulated coal liquefaction solution at typical reaction conditions. The test solution contained 25 mass percent solvent refined lignite (SRL) in an anthracene oil (A04). Six autoclave runs were performed using the University of North Dakota Energy Research Center's (UNDERC) single- stage, hot- charge, batch autoclave system; one to determine the vapor pressure of the solution, and five runs to determine the pressure and temperature effects on the vapor-liquid behavior. The five runs were conducted at near constant pressures, averaging 2050, 2570, 3077, 3629, and 4020 psia. During each run the temperature …

Impediments To Teaching Science In Elementary Schools In South-Central Minnesota With Comparisons To Findings Of The National Science Foundation, Edward R. Borchardt

Theses and Dissertations

This study identified and ranked impediments to teaching elementary school science perceived by elementary teachers in south-central Minnesota, examined impediments for common roots, compared current impediments to findings of a 1977 National Science Foundation study, and investigated if the survey device used affected the results obtained in a study.

Public and private elementary school teachers in southcentral Minnesota were surveyed using one of two forms. Survey 1 was a list of impediments generated by 34 teachers and ranked by 104 teachers. Survey 2, administered to 218 teachers, was a revised questionnaire developed by consultation of teachers and other knowledgeable professionals …

A Study Towards Understanding The Propensity Of Mature Consumers In Grand Forks County To Utilize Financial Products And Services Following The Deregulation Of Ranking, Sharon Richmond

Theses and Dissertations

Prior to 1980, conducting personal financial transactions were relatively simple matters. For instance, to earn interest customers had the option of simply going down to their local savings bank with cash and opening a passbook savings account.

To pay for everyday expenses customers simply wrote checks on their commercial bank checking accounts to cover the amounts of their indebtedness. Then things began to change.

In 1980, Congress adopted the Depository Institutions Deregulation and Monetary Control Act (DIDMC). This legislation enabled free markets and private initiative to flourish in the banking industry.

By "leveling the playing field" for all financial institutions, …

Heat Transfer In Coal Water Slurry Flow, Erwin Ayandra Irdam

Theses and Dissertations

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The convective heat transfer coefficient of coal water slurry flowing turbulently in a horizontal heated pipe was measured. The values of heat transfer coefficients from different slurry concentrations and flow rates were correlated using two approaches: the Dittus-Boelter type equation, and an analogy between heat and momentum transfer using Metzner and Friend equation.

The heat transfer data were taken in a 100 inches long, 1/2 inch inside diameter horizontal stainless steel pipe. The pipe was electrically heated with a DC power supply unit. Temperature measurements were taken using Copper/Constantan thermocouples embedded into the pipe wall while pressure drop was …

An Interdisciplinary Curriculum Model For Outdoor Education, Larry L. Lang

Theses and Dissertations

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The primary purpose of this study was to develop an interdisciplinary curriculum model which would improve the conceptualization, of outdoor education by providing a theoretical framework for curriculum development, evaluation, and further research.

In order to create the proposed model, it was necessary to address several related issues. The first phase of the study involved an investigation of current perspectives on outdoor education. Key characteristics and guiding principles were determined to provide a clarification of the substantive structure of this field of study. An analysis and synthesis of the contributions of John Dewey,.L.. B. Sharp, Julian Smith, and other …

Freshman Football Players' Preceptions Of Factors Influencing Their Choice Of College, Ross Fortier

Theses and Dissertations

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The purpose of the. study wtt'js to exai^.ne the question of why graduating high school football players make the college selection they do. The study sought to determine what factors influence athletes' decisions at three types of colleges and whether these factors are different for students from different academic, athletic, or socioeconomic backgrounds. An instrument was developed by the writer and administered to freshman football players at six selected small colleges in the upper midvestern United States.

The results of this study were intended to be used by college officials and coaches to gain information about the recruitment process. …

Gas Convective And Overall Heat Transfer Coefficient For A Vertical Tube Immersed In A Gas - Solid Fluidized Bed, Ajay Gupta

Theses and Dissertations

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Experimental data were obtained for the average gas convective and overall heat transfer coefficients for a vertical tube immersed in a fluidized bed containing four narrowly distributed particle size mixtures. Silica sand of weight-mean diameters ranging from 0.237 to 1.350 mm was used as the bed material. The static bed height was maintained at about 21 cm. The gas convective heat transfer coefficient was determined by measuring the amount of naphthalene sublimated from a vertical naphthalene tube of 0.0262 m in diameter and using an analogy between heat and mass transfer. The data were obtained at a bed temperature …

John C. Freemont's Expeditions Into Utah: An Historical Analysis Of The Explorer's Contributions And Significance To The Region, Alexander L. Baugh

Theses and Dissertations

John Charles Fremont conducted five expeditions to the West during a period of twelve years (1842-1854). On four occasions, during three of these expeditions (1843-1844, 1845, and 1854), the explorer entered the Utah region. His explorations in northern Utah in 1843 focused primarily on the scientific analysis and survey of the Great Salt Lake. In 1844, Fremont again entered the Utah area and made scientific observations and calculations about the region, including accurately defining the geographic region known as the Great Basin, the name given it by Fremont. In 1845, Fremont proceeded through Utah while enroute to California and spent …

The Theory Of Market Efficiency: Implications For External Financial Reporting, Nancy L. Belknap

Theses and Dissertations

No abstract provided.

An Evaluation Of The Effectiveness Of Return On Investment As A Technique For Plannings And Control, Brenda L. Todd

Theses and Dissertations

No abstract provided.

A Comparison Of Hypnosis And Behavioral Treatments For Obesity With One Year Follow-Up, Judith A. Haynes

Theses and Dissertations

This study was designed to examine the effects of hypnotherapy on both short-term and long-term weight loss when combined with a group behavioral weight loss program. At the beginning of the study, 38 obese female subjects (20% over normal body weight), ranging in age from 21 to 64, were randomly assigned to one of two treatment groups, one utilizing behavior therapy only and the other utilizing behavior therapy plus hypnotherapy.

The groups mot weekly for 1-1/2 hours for 8 consecutive weeks, with follow-up sessions, at 3, 6, 9, and 12 months. Twenty-eight women completed the study. The first hour in …

The Conversion Of An Induction Motor To A Synchronous Alternator For Wind Power Application, William W. Quaday

Theses and Dissertations

This study was conducted to analyze and record the procedures necessary to convert a ten horsepower three phase induction motor into a ten pole three phase synchronous alternator, suitable for use n a wind energy conversion system. It was undertaken in response to the high cost of commercially produced wind energy machines. A search of current literature revealed little in the area of motor or generator redesign, and no specific instructions regarding the conversion of an induction motor to a synchronous alternator.

Methods: The redesign process was conducted using a locally obtained ten horsepower motor and common motor repair materials. …

The Relationship Between Leadership Styles And Conflict Management Techniques As Reported By Hospital Middle Management Personnel In Eight Of The Largest Hospitals In North Dakota, Todette Laprairie Holt

Theses and Dissertations

The purpose of this study was to determine possible relationships between the self-reported leadership styles and conflict management techniques of a selected group of hospital middle management personnel. The major question studied was: Are there relationships between the self-reported leadership styles as measured by the Hersey and Blanchard LEAD-Self Instrument and the self-reported conflict management techniques as measured by the Thomas-Kilmann Conflict Mode Instrument among supervisors in selected health care institutions in North Dakota as reported by sex, age, level of education, years in current supervisory position, total years in supervisory positions, number of subordinates supervised, and hours of management …

Sex Stereotyping Of Careers As Perceived By Selected High School Seniors, Larry G. Pagel

Theses and Dissertations

Statement of the Problem: This study examined the extent of sex role stereotyping of occupations and the prestige assigned to those occupations by North Dakota high school seniors.

Procedures: A questionnaire containing demographic variables and a list of 35 occupations was developed with input from a panel of experts. Students then rated the appropriateness of occupations for females and males and the level of prestige assigned to male and female workers in the same occupation.

After a pilot study was completed, questionnaires were sent to 32 schools in North Dakota and completed by seniors enrolled in any course required for …

Dietary Restraint And The Salience Of Visual Food Cues, Jeanine Elaine Kotschwar

Theses and Dissertations

A review of the literature reveals significant changes which have oc- cured in the role posited for dieting. Once considered a simple solution for weight loss, dieting has more recently been seen as playing a causal role in the development of eating disorders. Similarly, the characteristics and behaviors once thought to be attributable to obesity have more recently been said to be by-products of dieting-induced hunger. Several authors have pointed to the influence of cognitive factors in initiating and maintaining dieting and, conversely, in abandoning restraint in eating.

The purpose of this study was to explore the influence of dietary …

Attitudes Of Normal Hearing And Hearing-Impaired Parents Towards Mainstreaming Of Their Hearing-Impaired Children, Melody A. Vachal

Theses and Dissertations

The present study was designed to determine the differences in attitudes of normal hearing and hearing-impaired parents toward mainstreaming of their hearing-impaired children. In addition to lattitudinal information, subjects were also questioned regarding their educational background, their child's education, and factors determining school placement.

Analysis of the responses revealed:

1. The majority (75 percent) of hearing parents agreed with mainstreaming, while the hearing-impaired parents tended to be neutral (60 percent) or disagreed with mainstreaming (40 percent)

2. Seventy-five percent of the hearing parents mainstreamed their child into public schools and 100 percent of the hearing-impaired parents did not mainstream their …

Selected Administrative Practices Of University President Described And Analyzed Through The Use Of The Kotter/Lawrence Theory, Daniel Roy Rice

Theses and Dissertations

Two questions were addressed in this study of presidential administration in higher education. How does an experienced president in higher education carry out the work of that office? How can that work be described utilizing a theoretical perspective?

The methodology for the study included observation of the president's work, interviews with selected persons who were familiar with his work, and the study of documents. The president's schedule and telephone logs were analyzed.

The theoretical structure for the study was built upon the views of Baldridge, Kauffman, and Kerr who have suggested that the president of the research university functioned in …

School Climate And Teachers' Perceptions Of Principals' Uses Of Power Strategies, Ann Windsor Schroeder Porter

Theses and Dissertations

The purpose of this study was to identify the power strategies used by elementary principals in North Dakota and northwestern Minnesota. It also examined the relationships between the power strategies used by those principals and the organizational climates of their schools. Schools' climates and principals' power strategies were measured based on teachers' perceptions.

The Organizational Climate Description Questionnaire was used to measure the schools' climate profiles, openness scores, and mean scores of the eight dimensions of school climate. The Perception of Principal Power Tactics Survey was used to measure teachers' perceptions of principals' uses of power strategies.

Three hundred one …

A Comparison Of Minnesota Multiphasic Personality Inventory Profiles In Native American And White Alcoholics, Barbara Nelle Vesely

Theses and Dissertations

Although the literature on alcoholism is extensive, virtually all of the existing psychological theories of alcoholism are based on research primarily conducted on White males. The question of generalizability of these research findings to females and to other ethnic groups, such as Native Americans, is one of paramount importance. The present study was designed to investigate differences between the sexes and between the White and Native American groups, by analysis of the MMPI profiles of each group.

In addition to investigation of the group differences, this study addressed another major deficiency of the literature. Many psychological assessments, for example the …

Coaching Social Skills With A Third Grade Student, Dawn M. Stave

Theses and Dissertations

No abstract provided.

Neural And Cognitive Control Of Sexual Arousal, Trudi Anne Sprunck Till

Theses and Dissertations

This study investigated patterns of cortical activity and erectile responding which paralleled inhibition and •facilitation of sexual arousal in a nonclinical sample. To determine if the cerebral hemispheres contributed differential1y during regulation of arousal, the study: (a) tested for lateral asymmetries in EEG (electroencephalogram) alpha power during each condition, and (b) examined subjects' strategies for unique cognitive contributions of the hemispheres.

Thirty, right-handed, college-aged males, listened to a set sequence of tapes (neutral, erotic, neutral, erotic), counterbalanced for content and arousal regulation. Subjects simply listened to neutral tapes. To erotic tapes subjects inhibited, and alternatively facilitated arousal .

Response measures …

A Comparison Of Three Methodologies Reflecting Wage Disparity For Faculty Of Equal Appointment In Higher Education, Suzanne M. Warford Anderson

Theses and Dissertations

Studies have been done determining wage disparity between male and female faculty in higher education. Each methodology indicates that it is the most accurate as it reflects the existence of wage gaps.

The first study used multiple regression analysis with salary the dependent variable and the independent variables of sex, birth year, highest degree, race, and college. Variables with a significant relationship to salary revealed by t-values were sex, birth year, master’s degree, and three colleges.

The second study used multiple regression analysis with salary the dependent variable and the independent variables of degree year, publications, time in administration, time …

A Study Of School District Administrative Computer Functions, William Ross Murison

Theses and Dissertations

The purpose of this study was to identify information to assist school district administrators in the development of a systems approach to the automation of district-level management. Research data included initial and current computer system(s), level of training, implementation procedures, problems encountered, information sources, future plans for upgrading, and general recommendations.

State education department personnel from Iowa, Minnesota, Nebraska, North Dakota, and South Dakota were contacted to identify seven school districts that used computers for administration in each of four student enrollment categories. The study was limited to districts which used IBM or Apple microcomputers and/or any brand of larger …

Perceptions Of Professional Developmnet Needs Of Selected Principals Serving American Indian, Other Minority, And Non-Minority Students, Mary Sue Hall

Theses and Dissertations

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Principals need appropriate knowledge, attitudes, and skills to be leaders in school improvement:. Continuing education for principals seems essential due to the changing nature of knowledge as weld as the obligation of being a professional. Principals should be treated as colleagues who are capable of describing their own professional development needs.

The purposes of the study were to compare the perceived professional development needs of principals employed in schools with a concentration of American Indian students to (1) those principals In schools with a concentration of students representing other minorities and to (2) those principals in schools with few …

Preschool Behavioral Precursors Of The Delinquency Of Juvenile Offenders: A Retrospective Study, Kay A. Halverson

Theses and Dissertations

Early behaviors of juvenile offenders and nonoffenders were studied to assess differences between the two groups. Experimental subjects were 50 youth residing in three northeastern counties of North Dakota who had committed two or more offenses. Control subjects were 50 non-offenders matched for birthdate, sex, and school. Data were collected retrospectively from both groups on Form 1 of the Louisville Behavior Checklist (LBC)» an inventory designed to detect psychopathological behaviors among preschool children. The responses were analyzed in terms of hypotheses that were designed to address (a) which scales of the LBC would show a significant difference between the offender …

The Effects Of Caffeine In Free Recall, Mary Ellen Arnold

Theses and Dissertations

Caffeine, a central nervous system stimulant, is said to produce an elevation in level of arousal. Humphreys and Revelle (1984) have proposed a model to account for changes in information processing efficiency resulting from differences in personality, situational moderators such as caffeine, and type of information processing task. According to the model, a high level of state arousal will result in poor performance on shortterm memory tasks, while improved performance will occur at a low level of arousal. In this experiment, subjects' trait level of arousal, as measured by the impulsivity subscale of the Eysenck Personality Inventory, was manipulated by …

A Follow-Up Survey Of North Dakota School Districts Who Participated In Evaluation For Growth Workshops Between January 1982 And November 1984, Thomas G. Decker

Theses and Dissertations

No abstract provided.