Digital Commons Network^™

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 …

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 , …

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 …

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 …

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 …

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 …

The Design And Testing Of A Simulated Rocking-Chair Platform For Wheelchair Dependent People, Donald James Winge

Theses and Dissertations

No abstract provided.

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. …

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 …

Supplementary Income Activities Among Minnesota Public School Teachers, Janet L. Pladson

Theses and Dissertations

The Problem: This study was designed to develop profiles of Minnesota teachers who did and did not engage in supplementary income activities, profiles of teachers engaged in one, two, or three or more supplementary income activities, and to compare the differences. The study also investigated the perceived need to engage in supplementary income activities, the perceived reasons for being engaged in supplementary income activities, and the perceived impact of being engaged in supplementary income activities.

Procedure: A three percent (3%) sample of Minnesota teachers participated in a survey designed to collect information about the supplementary income activities of teachers. Resulting …

Computer Aided Drafting, Lou Shi-Jer

Theses and Dissertations

No abstract provided.

A Survey Of Attitudes About Science Fairs In White Shield School, Donald R. Yellowbird

Theses and Dissertations

No abstract provided.

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 …

A Combination Of Approaches To The Remediation Of Learning Disabilities, Judith N. Dockter

Theses and Dissertations

No abstract provided.

Identification Of Content And The Development Of Laboratory Experiments Designed To Promote Robotic Literacy For Industrial Education Programs, Steve C. Hsiung

Theses and Dissertations

No abstract provided.

Audit Risk Realization, Craig H. Mell

Theses and Dissertations

No abstract provided.

Identification Of Content And The Development Of Laboratory Experiments Designed To Promote Robotic Literacy For Industrial Education Programs, Steve Chih Hsuing

Theses and Dissertations

The intent of this study is to ascertain the content robotic manufacturers considered most important to be taught in secondary school to promote robotic literacy and to design, construct and test ten laboratory experiments which reflect the content identified.

Free-Form Deformations In A Constructive Solid Geometry Modeling System, Scott R. Parry

Theses and Dissertations

No one will question that computers are revolutionizing the design industry. It is pointed out in [Bezier84] that before CAD/CAM, a surface was defined by tracing cross sections on a drawing and then carving these sections in wood, plastic or metal. The final model was determined by someone interpolating between the sections. This labor intensive art is being replaced by techniques of computer aided geometric design.

The Application Of Inventory Control And Purchasing To A Small Retail Business, Juanita M. Rendon

Theses and Dissertations

This study was conducted to address the problem of inventory control of a small retail clothing business. An examination was made of the retail inventory control system and the open-to-buy purchasing method. Illustrations using hypothetical figures were presented in the application of these methods to a small retail clothing business.

Several advantages and values of utilizing these methods were cited and illustrated. This study concludes that the implementation of these methods are highly recommended to the management of a small retail clothing business. Information obtained from these methods of inventory control would aid management in making successful merchandising decisions, and …

Recruitment And Retention Of Special Educators For Rural School Systems, Margie Oliver-Hay

Theses and Dissertations

There is nothing new about teachers leaving their profession. Teacher turnover has always occurred. But when education loses its most experienced and mature teachers, there is cause for concern. When smaller rural districts lose their best teachers both in regular and special education teacher turnover may be a crises!

Recruitment and retention of special and regular educators is becoming an extremely serious problem for rural areas. Enrollments in college and in education departments are decreasing. Women, who once were the dominant force in the teaching ranks, are being attracted to other fields such as medicine, engineering, computer science, and law. …

The Girl Scouts In Utah: An Administrative History, 1921-1985, Jennifer L. Lund

Theses and Dissertations

Girl Scouting began in Utah in 1921 out of a desire of several wealthy women to help build the character of young girls in Ogden. Exhibiting many elements of the "social gospel" aspect of progressivism, they adopted the Girl Scout program which emphasized preparation for practical living, appreciation of nature, and development of character.
Since the first troops were organized in Ogden, Girl Scouting slowly spread throughout the rest of the state, resulting in several Councils and Lone Troops. After responding to a call for consolidation from the National Girl Scout Council the Utah Scouts made a dramatic change in …

Reasons American Indian Students Do Not Typically Choose Industrial Education As A Major At Byu, Sam Canyon

Theses and Dissertations

It was the purpose of this study to examine reasons why American Indian students do not typically choose Industrial Education as a major at BYU. To identify reasons American Indian students do not typically choose Industrial Education as a major, a questionnaire was developed. This questionnaire obtained data about personal information, reasons for not choosing Industrial Education as a major, reasons not included in the survey, Industrial Education background, and other general information related to the study. The questionnaire was administered on and off BYU campus to 122 identified American Indian students. Ninety- two students completed and returned the survey, …

Phonetic Ambiguity Perception In Reading Disabled And Non-Disabled Children And Adolescents, Elizabeth A. Carter

Theses and Dissertations

There are speculations that disabled readers may fail to correctly decode written words because they are insensitive to language's phonetic form. This insensitivity is presumed by some to be due to a speech perceptual deficit. The purpose of the current study was to assess differences between disabled and non-disabled adolescents and elementary school students in their perceptual accuracy in decoding phonetically ambiguous speech. The effects of two processing factors derived from previous research, priming and word form (e.g., Spencer & Carter, 1982), were also examined to assess how perceptual processes may differ between groups. Clinical evidence of some verbal problems …

Age And Experience Differences In Posture And Movement Of Children While English Horseback Riding At A Walk, Mary Katherine Belissary

Theses and Dissertations

The purposes of this study were to: (1) describe posture and movement of non-disabled children while English horseback riding at a walk, (2) propose a developmental sequence for each of three components of body posture and movement: the upper extremity the lower extremity, and the head and trunk, and (3) describe age differences in posture and movement while riding.

The study was designed as a cross-sectional descriptive study. Thirty children without disabilities: ten five-year-olds who had never received formal riding lessons; ten seven- and eight-year-olds who had received six months or less of formal riding lessons; and ten nine and …

Characterization Of A Staphylococcal Trimethoprim Resistance Gene, Jerald Preston Coughter

Theses and Dissertations

Trimethoprim resistance(Tp r) is encoded by conjugative plasmids in clinically significant staphylococcal isolates. Two genetically and physically similar plasmids from S. aureus, pG01 and pGOS, have Tp r genes that map in different locations on these plasmids. In order to study the relatedness of the Tp r genes and their products to other known Tp r genes, a 1.2 kb fragment of pG01 and a 4.2 kb fragment of pGOS were cloned in E. coli and used as probes for in situ filter hybridization experiments.

A 500 base pair subclone of the original 1.2 kb fragment containing only the staphylococcal …

The Synthesis And Characterization Of Some Thermally Stable Polypyrazoles And Acetylene Terminated Aspartimides, John W. Connell

Theses and Dissertations

Reactions involving the nucleophilic addition cyclization to activated acetylenes have been employed as a novel route to moderate to high molecular weight polymers. Polypyrazoles (PI to P12) have been prepared from the Michael-type addition cyclization of various aromatic dihydrazines to aromatic dipropynones in m-cresol. The aromatic dihydrazines employed were 4, 4'-dihydrazinodiphenyl ether (4,4' -DHDPE), 4,4 '-dihydrazinodiphenylmethane (4, 4'-DHDPM), and 4, 4' -dihydrazinodiphenyl sulfone (4,4'-DHDPS). The dipropynone sutilized were 1,1’- (1,4-phenylene) bis (3-phenyl- 2-propyn-l-one), (l,4 -PPPO), 1,1’ - (1, 3-phenylene) bis (3 -phenyl- 2 -propyn-l-one), (1,3-PPPO), 1,1 '-(1,4 -phenylene) bis (2 -propyn- l-one), (1,4 -PPO), and 1,1’- (1,3 -phenylene) bis (2 …

Contaminant Migration Of Oil-And-Gas Drilling Fluids Within The Glaciated Sediments Of North-Central North Dakota, William A. Beal

Theses and Dissertations

A common practice during oil and gas well-site reclamation in North Dakota is to bury the drilling muds in shallow trenches near the borehole. These muds are saltwater based (between 100,000 and 300,000 mg/L of NaCl) and can contain high concentrations of chromium, lead, and other. toxic trace metals.

Two reclaimed oil and gas well sites were chosen for study in north-central North Dakota: the Winderl site in southeastern Renville County, and the Fossum site in west-central Bottineau County. The Winderl oil well was drilled in 1959, and the drilling fluids were disposed of in a shallow pit excavated in …

The Effects Of Fly Ash And Flue-Gas Desulfurization Wastes On Groundwater Quality In A Reclaimed Lignite Strip Mine Disposal Site, Frank W. Beaver

Theses and Dissertations

Coal conversion wastes were generated at a lignite-coal-fired, steam-electric power station near Center, North Dakota, and were buried in unsaturated and saturated settings within the nearby stripmine, typical of settings used by the industry. The study ran for 8 years beginning in 1978. Approximately 240 piezometers were used for collecting groundwater level and groundwater chemistry data in the saturated zone. Pressure-vacuum lysimeters were installed to sample the unsaturated zone. Interstitial water was extracted from Shelby tube and auger samples at otherwise uninstrumented points.

More than 15,000 water-level recordings allowed precise definition of groundwater flow and occurrence at the study site. …

Origin And Stratigraphy Of Holocene Sediments, Souris And Des Lacs Glacial-Lake Spillways, North-Central North Dakota, William M. Boettger

Theses and Dissertations

In the past few years, a new interpretation of the formation of the Souris and Des Lacs glacial-lake spillways has been proposed. Now, based on geomorphological evidence, it is concluded that the Souris and Des Lacs Valleys were formed by massive glacial-lake outburst floods at the end of the late Wisconsinan deglaciation. Five phases of drainage have been recognized with the first forming the Des Lacs Valley and the other four associated with drainage in the Souris Valley from different proglacial lakes in Canada. The last of these floods down the Souris Valley was the most erosive.

This study is …