Digital Commons Network^™

Analysis Of Parking Orbits For A Sts External Tank In Low Earth Orbit, James E. Cross

Theses and Dissertations

A study was conducted of a single external tank in low earth orbit. Criteria for a parking orbit are then defined. Various orbits are then selected by varying the semi-major axis, eccentricity, and inclination. The resulting equations of motion for each of the above orbits (including atmospheric drag and a 2x0 gravity model) are numerically integrated over a time span of 90 earth days. An examination was made of the lowest initial altitudes which allowed the external tank to remain in the orbit window.

Numerical Analysis Of Critical Inclinations About The Planet Mars, Kenneth J. Hyatt

Theses and Dissertations

This study investigated critical inclinations about the planet Mars. Averaged equations of motion were numerically integrated over a time span of ten Earth years for various inclinations, eccentricities, and perigee heights. Each orbit (i.e. set of initial conditions) produced a standard deviation of the variations in eccentricity (SDE) and inclination (SDI). These were calculated using a polynomial approximation to the variations. Surface plots of SDI and SDE vs the initial conditions are then examined to ascertain the critical inclinations.

Specification And Equivalence Verification Of Sequential Circuits Via Vhdl, Richard L. Miller

Theses and Dissertations

This research presents a merger of the specification and design capabilities of the Very High Speed Integrated Circuit (VHSIC) Hardware Description Language (VHDL) with a known verification method (UC Berkeley's verify software) in order to solve the design and verification problem of sequential circuits. The fruits of this research are a behavioral VHDL model for sequential circuit specification, a structural VHDL model for sequential circuit design, and a method for comparing two circuits described using these VHDL models in order to demonstrate circuit equivalence. The behavioral and structural VHDL models were developed and tested within the Intermetric's VHDL software support …

Continuous Wave And Pulsed Solid State Laser Model, Matthew D. Rotondaro

Theses and Dissertations

A solid state laser is modeled for use on a personal computer. The model can accurately represent Nd:YAG and Nd:Glass lasers during both continuous wave and repetitively pulsed operation. The large number of input variables allow the user to make changes to the cavity, optical pump source, and the cooling system. The model calculates the energy, power, and divergence angle of the beam along with other variables. Because of its user-friendly interface, it is possible for someone with limited laser experience to obtain useful information.

Dynamic Analysis Of A Combat Aircraft With Control Surface Failure, Marc Roy

Theses and Dissertations

An investigation was performed to analyze the dynamic stability characteristic of an aircraft which has sustained damage to a primary control surface. The analysis was performed using the existing functional form of actual wind tunnel data taken on an F-16 model. Two control schemes are used for trimming an F-16 that has sustained damage to its rudder. The first control scheme represent the basic aircraft, while the second allowed the horizontal tail ailerons to move independently from the flaperons. The investigation was conducted for one flight condition representative of the aircraft at cruise speed. Region in α/β (angle of attack)/(sideslip …

Perceptions Of Retired Public School Teachers Regarding Retirement: Implications For Preretirement Planning, Rollie Duane Morud

Theses and Dissertations

The purpose of this study was to identify perceptions about retirement and suggestions regarding retirement planning from retired public school educators. The writer's primary interest was in developing a data base regarding the non-financial issues of retirement leading to the design of a preretirement preparation planning program.

A random sample of 393 retired North Dakota teachers from a population of 3930 was surveyed. Seventy percent (274) returned the eight-page survey. The sample had the following characteristics: average age--73 years, average length of retirement--10.65 years, 74 percent were female, 72 percent lived in their own home, 37 percent had moved since …

Cognitive And Behavioral Correlates Of Dietary Restraint., Nancy Jo Wagner

Theses and Dissertations

The chronic, arduous restriction of food intake to lose weight has been termed dietary restraint. High restraint status may be conceptualized as a subclinical antecedent of bulimia and anorexia nervosa. Dietary restraint is associated with a paradoxical tendency to overeat or binge.Whereas dietary restraint behaviors per se are thought to be part of the eating disorders continuum, it is less certain whether other important clinical features, e.g., symptoms found in eating disordered patients, are also present in less severe form among dietary restrainers. Further research is warranted to investigate cognitive and affective features of subclinical groups, i.e., dietary restrainers. Attempts …

Eros And Thanatos In D. H. Lawrence's "Sons And Lovers" And "Lady Chatterley's Lover" And In John Fowles's "The Collector" And "Daniel Martin"., Salah Ed-Din A. Nefily

Theses and Dissertations

This dissertation examines the relationship between eros and thanatos in four novels, Sons and Lovers and Lady Chatterley's Lover by D. H. Lawrence and The Collector and Daniel Martin by John Fowles. Sons and Lovers and The Collector reflect their authors' early awareness of certain thanatotic forces in modern life. Lawrence criticizes the negative influence of mechanization on human beings whereas Fowles opposes lack of freedom.The two writers' awareness of these negative forces in the early novels is followed in Lady Chatterley's Lover and in Daniel Martin by presentations of salvational plans which liberate or heal the novels' protagonists. In …

Language Use In The Epena District Of Northern Congo, William L. Gardner

Theses and Dissertations

This thesis, based on two language surveys conducted in 1988 and 1989, addresses the question “What language do you speak?” for the people of the district of Epena in the Likouala Region of the People’s Republic of the Congo. The goals of the study were to: 1) inventory all the languages and dialects spoken in the district; 2) clarify their relationships with each other and neighboring languages; 3) measure the degree of intelligibility between speakers of different language varieties, specifically among the Bomitaba people; 4) investigate in what situations the people use which languages; and 5) provide bases for making …

Comparison And Contrast Of Participation Fee Policies, Andrew O. Dahlen

Theses and Dissertations

No abstract provided.

Distinctives Of Corongo Quechua: Historical And Synchronic Perspectives, Daniel J. Hintz

Theses and Dissertations

This thesis presents the structure of Corongo Quechua from four distinct but complementary perspectives. One, it describes the segmental sound system both historically and synchronically. Two, it provides a substantial amount of data in the form of glossed texts in a variety of genres. Three, it provides a brief description of the morphological structure and a complete list of suffixes with examples. Four, it includes a brief glossary of commonly occurring roots.

The description of the sound system has a comparative focus, examining those aspects of the phonological structure that are distinct from other Quecha dialects. It specifically examines Corongo …

An Examination Of The Relationships Between Cunselor Supervisees' Perceptions Of Supervision And Their Personality Characteristics, David S. Cozzens

Theses and Dissertations

No abstract provided.

Exploring The Relationship Of Whole Language And Isolated Skills Instruction With Reading And Writing Skills Of Intermediate Remedial Readers, Marian C. Bryan

Theses and Dissertations

Two instructional methods of teaching remedial reading in a Chapter I (Education Consolidation and Improvement Act) setting were compared. One group of 20 remedial reading students received a traditional or isolated skills (IS) approach to reading and a group of 20 remedial reading students with similar ability and achievement levels received a whole language (WL) approach to reading for 7 months. A comparable control (C) group was selected from Chapter I classes in two other schools. All groups spent from 30-45 minutes in a small group (5-8) Chapter I setting with computers and a variety of reading materials available.

Group …

The Air Force Comes To North Dakota: A Study In The Site Selection Of Grand Forks And Minot Air Force Bases, Rich J. Nolan

Theses and Dissertations

In 1954 the Air Force decided to locate two air bases in North Dakota. After deciding on locations at Fargo and Bismarck, the Air Force then changed the locations to Grand Forks and Minot. The decision created an uproar in the state as each major city fought to receive a base. Another controversy erupted over the site selection within Grand Forks County when the Air Force changed the locations from its original choice.

A wide variety of research sources were used in the the paper. The papers of United States Senator Milton R. Young were extensively used. Government documents in …

The Conjunctive Novel: Form And Function, Joanne Ruth Gowey Desotelle

Theses and Dissertations

The purpose of this paper is to identify the function of characters who recur in more than one text by the same author.

Chapter One reviews critical opinions regarding repeating characters. These range from Percy Lubbock who believes that the other lives of a character should be ignored or they will distort the truth of the individual novels, to Michel Butor who recognizes that repeating characters serve a unique function within the texts. The term “conjunctive” novel is coined to identify texts which are conjoined by repeating characters.

Applying Mikhail Bakhtin’s terminology, Chapter Two argues that conjunctive novels are double-voiced …

An Analogous Instructional Model Of Automotive On-Board Engine Management Computer Systems, Lloyd R. Walker

Theses and Dissertations

No abstract provided.

Integrating Language Arts With Graphic Communications In An Inner City Junior High School, Kurt Proctor

Theses and Dissertations

Teaching the youth of today is becoming an important issue. Alarming statistics prove that the problems of illiteracy and high dropout rates are not decreasing. If nothing is done to change the prospects of the 13 million school-aged children currently at serious risk of school failure, says a coalition of eleven education organizations, these children will grow up to become adults who will drain the economy in welfare and social service costs and seriously hamper the nations ability to compete internationally. L. B. Schorr (1988) states that in 1987,"the one million youngsters who leave high school without graduating will be …

Chautauqua In Devils Lake, North Dakota: An Historical Study Of The Organization, The Facilities, And Programs, Judy R. Peterson Ryan

Theses and Dissertations

Chautauqua, a totally American institution which impacted nearly forty million people in its approximately fifty-year existence from 1874 to 1930, was a place to enrich lives through education, inspiration, and recreation. Devils Lake, North Dakota, a small, isolated town on the Midwestern plains, located on the shores of a large, salt-water lake, became the site of the nation's third largest independent Chautauqua in the nation, operating from 1893 to 1929.

This thesis is a study of the history of the Devils Lake Chautauqua, its organization, and development. Included in the research is a study of the national Chautauqua and Lyceum …

Gender Difference In Emotionally Disturbed Children, Jane M. Beaulieu

Theses and Dissertations

The purpose of this study was to determine the consequences to emotionally disturbed elementary school girls of being in the minority in self-contained classes for emotionally disturbed children. This study was conducted in MISII (Modified Instructional Service II) classes, primarily for the emotionally disturbed, in the New York City Public Schools. The ratio of boys to girls was 6.5 to 1. A survey was distributed to teachers of such classes with at least one girl attending. Part 1 of the survey consisted of 36 statements on the following topics indicated by the literature as relevant to the situation of girls …

A Comparative Study Of The Identification Of Learning Disabilities In A Multi-District Special Education Unit, Jacqualene Trefz

Theses and Dissertations

Statement of the problem. Variability within learning disability programs is a common problem with implications for all aspects of service delivery. This study was designed to analyze and describe inconsistencies in procedures for the identification of learning disabled students within Buffalo Valley Special Education Unit in central North Dakota.

Methods and procedures. A multiple case study approach was used within the framework of the naturalistic paradigm. A single case was defined as the identification and placement of students within the schools served by one learning disability teacher during the 1988-89 and 1989-90 academic years. Data collection was specific to the …

The Great War And The American Novel: Mimesis And Craft In Selected Fiction Of Dos Passos, Boyd, March, And Hemingway, William E. Matsen

Theses and Dissertations

This dissertation examines the influence of World War I on American literature and its effects on the American tradition of literary realism. It does so through an analysis of five war novels written by four American authors who had participated in the conflict as combatants or volunteers. These works include John Dos Passos' One Man's Initiation--1917 and Three Soldiers, Thomas Boyd's Through the Wheat, William March's Company K, and Ernest Hemingway's A Farewell to Arms.

The dissertation explores a development within the sub-genre of war novels from works of "witness and testimony," which were based on the authors' personal experiences …

Evaluating The Writing Of First Grade Children: Two Procedures, Barbara W. Olson

Theses and Dissertations

No abstract provided.

Drug Testing In The Public Sector, James R. Beal

Theses and Dissertations

The purpose of this study is to assess the nature and extent of drug testing in the public sector. Drug testing of public employees as well as private employees has been on the rise since the later part of the 1980s. This trend may continue into the 1990s and beyond.

Though drug testing may appear to be means to end drug abuse among public employees, it may not be the best means. In order to fully understand the current controversies sur— rounding drug testing, a detailed examination of available literature was conducted. There are many issues that must be considered …

The Influence Of Age On The Mmpi Responses Of Adult Male Alcoholics., Gary A. Sacks

Theses and Dissertations

Recent cluster-analytic research with alcohol-dependent men has demonstrated the existence of several Minnesota Multiphasic Personality Inventory (MMPI) subtypes that are consistent across diverse samples. Few such studies have been reported which employed age as a variable of interest. Shortcomings of this research include a lack of external, independent measures against which to evaluate the predictive validity of cluster typologies. Subjects were divided into four groups according to age in 10-year increments. The current study detected age-related changes in derived MMPI clusters for 387 male alcoholics who were admitted to a private inpatient treatment program. Subsequent multivariate analyses employing alcohol-use scales …

The Time Course Of Recognition Memory For Pictures., David Paul Lommen

Theses and Dissertations

This study employed complex, pictorial stimuli and a time-course format to explore early-process characteristics of recognition memory. A suggestion that time variables should interact under certain conditions is implicit in some recent dual-process models of recognition memory. A goal of the experiment was to assess compatibility of results with specific models of recognition memory.Item exposure time was crosses with response deadline time in a 3 x 4 design. Seventy-two subjects viewed an input set of 48 scenic, color photographs of cityscapes and landscapes. The set was divided into three blocks of 16 photographs. Exposure time of photographs within each block …

Joint Position And Velocity Derived From Muscle Spindle Output: A Computational Approach., Daniel Leroy Ewert

Theses and Dissertations

Current experimental evidence suggests that muscle spindles do play a significant role in the sensation of joint position and velocity. However, the dynamic characteristics of muscle spindles are complex and highly variable. Researchers have found, in the primary sensory cortex of primates, neurons whose activities are proportional to joint position and velocity. Some of these neurons were excited only by activating muscles spindles. This leads to the research question: can joint position and velocity be extracted from muscle spindle activity using a neurally-inspired mathematical model.The method of solution included modeling a simple hinge joint with an antagonist and agonist muscle …

Repetition And Reading: Word Rhythms In Henry James And Margaret Atwood., Alice O'Toole Poehls

Theses and Dissertations

This study develops a method of reading the novel which emphasizes single-word repetitions as they rhythmically occur in the artistic text. By analyzing these word rhythms, a reader can disrupt the habitual production of the novel based on the fictional events of the story and, instead, focus on the textual events of the artistic form.Chapter Two provides the vocabulary and the critical theory which informs the other chapters. The words of Roman Jakobson, Wolfgang Iser, Roland Barthes, and Fredric Jameson provide a base for discussion of the novel as an integral structure with an unlimited semantic potential. A three-step interpretive …

Living With What Belongs To Us. (Original Poetry);, Dec Huesgen George

Theses and Dissertations

This dissertation is a collection of poems which explores prairie lives, both past and present.The collection draws on four generations of the author's family's experience on the plains, illustrating ways in which human relationships make visible the fears, failings, and visions of a people who inhabit a region with its own myth and ambience.The poems are divided into four sections: "The Threshers" deals with the strength of the prairie settlers and the tragedies they faced; "Shadows" acknowledges childhood innocence and initiation as seen through the poet's experience; "Prairie Shapes" presents the adult poet on the prairie; and "The Lotus Seeds" …

The Synthesis Of Fluorinated Analogs Of Nucleic Acid Components., Daniel Joseph Swartling

Theses and Dissertations

The overall objective of this research was to find methods for incorporating CF$\sb2$ groups into nucleosides in order to obtain biologically active molecules. The nucleoside analogs were designed to be inhibitors of DNA synthesis and to block viral replication. Particular emphasis was directed toward analogs with the potential to inhibit HTLV-III encoded reverse transcriptase. The specific objectives were, (a) to find ways to replace each of the deoxyribose oxygens by the isosteric-isopolar CF$\sb2$ group, and (b) to replace the 2$\sp\prime$-CH$\sb2$ and 3$\sp\prime$-CHOH groups by a CF$\sb2$ group. Emphasis was placed on a detailed investigation of the introduction of the CF$\sb2$ …

Information Systems Content In Undergraduate Accounting Programs., Donna K. Dietz

Theses and Dissertations

The problem of this study was to identify information systems content to be taught in an undergraduate accounting curriculum.After a review of the literature, a questionnaire was developed by the researcher. A panel of accountants and educators critiqued the questionnaire and a pilot study was conducted. The final questionnaire was mailed to 2,800 randomly selected Certified Public Accountants (CPA) throughout the United States.The returned questionnaires (41.39 percent of the total mailed) were analyzed by finding the overall mean and the mean of each response group. One-way analysis of variance was used to find significant differences among the response groups. Tukey's …