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Some Ecologic Relationships In An Anaerobic-Aerobic Experimental Waste Treatment System., Gordon M. Fillipi

Theses and Dissertations

No abstract provided.

An Analysis Of The Effects Of In-Service Science Assistance On Elementary Teacher And Student Attitudes And Practices, Douglas A. Degroote

Theses and Dissertations

Problem: The purpose of this study was to determine whether in-service science assistance will affect positively the attitudes and practices of elementary teachers and students.

Procedure: The investigator designed and implemented a six month in- service science program for elementary teachers and students. The study population consisted of 12 first through sixth grade teachers and their 313 pupils in one elementary school in East Grand Forks, Minnesota.

Change in attitudes and practices of teachers was measured by comparing pre-test and post-test scores on the Actual Science Classroom Environment instrument, which was designed to determine what types of activities teachers perceived …

Isaac Post Baker, Pioneer North Dakota Entrepreneur: Three Business Ventures, Charles Wayne Spiedel

Theses and Dissertations

This paper is to examine three businesses developed in tha first two decades *. he twentieth century by Isaac Post Baker in Bismarck, North Dakota. Baker was a noted river transportation man, businessman, politician, and banker in pioneer North Dakota. From his personal papers I traced the developments of his Bismarck Realty Company, his Bismarck Elevator and Investment Company, and his Expansion Lumber and .Mercantile Company. By examining the developments of these businesses, a better understanding can toe gained of the changes which developed along the Upper Missouri River during this time period in regard to Baker*s dispersal of farmland, …

The Biology And Ecology Of River Carpsucker, Carpiodes Carpio (Rafinesque), In The Little Missouri Arm Of Lake Sakakawea, North Dakota, Darrell John Trzpuc

Theses and Dissertations

The life history, growth, and ecologic distribution of river carp- sucker, Carpiodes carpio (Rafinesque), were studied in the Little Missouri Arm of Lake Sakakawea, North Dakota, between May 15 and August 14, 1970. In the course of the study 745 river carpsuckers were captured. The distribution of this species in the Little Missouri Arm was influenced by turbidity and water temperature. Dissolved oxygen content and hydrogen ion concentration did not affect their distribution. The condition factor of 2.94 indicated that carpsucker growth in the arm was good . Limited observations of reproduction and spawning habits were made, and the evidence …

Responsibility Accounting, Larry A. Adam

Theses and Dissertations

No abstract provided.

Valuation Of Assets At Other Than Costs, Robert J. Melby

Theses and Dissertations

No abstract provided.

Rising Sun Electronics: A Case Study In Edp Auditing, Vincent P. Unruh

Theses and Dissertations

No abstract provided.

Lasing Conditions Of Elemental Sulfur In A Gas Discharge, David E. Egbert

Theses and Dissertations

The partial pressures from heated sulfur crystals and helium, and sulfur and nitrogen required for ionic sulfur laser action in a gas discharge were determined. Previous work with sulfur lasers is reviewed and population inversion mechanisms are presented for the ionic sulfur laser lines. Possible excitation mechanisms are presented for both electron and ion or atomic collision excitation. Transition diagrams for all the known ionic sulfur laser transitions and an approximate potential energy curve for the diatomic sulfur molecule are presented. Laser action was achieved only when a spark gap pulser was used with a laser tube especially designed to …

The Influence Of The Horse In The Upper Midwest Between 1800 And 1970, Linda Price

Theses and Dissertations

This thesis traces the development and influence of the horse in the Upper Northern Plains between 1800 and 1970, The horse became one of the many instruments used to open this region.

The story of the horse in the Upper Midwest of the United States began with the Indian, When the horse reached this region after 1750, he became a definite influence on the Indian culture. Once the Indian domesticated the horse he shifted his economic emphasis from gathering and gardening to the nomadic pursuit of the buffalo. The Indian and the horse formed a perfect unit in both the …

A Career Curriculum In Physical Education For Grade Five, Alicia C. Vorland

Theses and Dissertations

No abstract provided.

A Study Of The Relative Reactivity Of Carbon From Coal Using The Bouduard Reaction, Jay Robert Kauphusman

Theses and Dissertations

Chars made from two lignites, a subbituminous coal and a bituminous' coal, were reacted, with CO2 over a range of temperatures and space times to determine the effect of coal rank on the conversion of CO2 to CO by the Bouduard reaction. The rank of the coals tested was found to have a definite effect on the conversion of CO2 with the degree of conversion decreasing with increasing rank. Conversion increased with increasing temperature and contact time. Calculation of the heats of formation of the carbon constituents of these coals from the pseudo equilibrium data indicate that the carbon in …

An Examination And Critique Of The Process For Allocating Resources For National Defense, Laurence L. Pinkerton

Theses and Dissertations

No abstract provided.

A Quantitative And Ecological Survey Of The Algae Of Huntington Canyon, Utah, Lorin E. Squires

Theses and Dissertations

A quantitative and ecological study of the algal flora of Huntington Canyon, Emery Co., Utah was conducted from March 1971 to April 1972. Data were collected concerning net plankton, nannoplankton, periphyton and visible attached algae. Certain physical and chemical parameters in the waters of Huntington Creek and a small pond along its course also were measured. The algal flora of Huntington Canyon contains a wide diversity of genera and species. Diatoms are the main constituent of the flora of this stream throughout the year. Hydrurus foetidus is prevalent in the creek in Huntington Canyon from late winter to early summer, …

Peak Temperature Distribution In Steel Plates During Arc-Welding, Bhanuprakash M. Patel

Theses and Dissertations

The welding of steel plays an important role as a major fabricating process in industry. In the field of welding metallurgy, much attention is given to the effects which a welding arc or flame will have on the structure and properties of the metals being joined. The engineer is interested in the intensify and extent of physical changes brought about by the unavoidable heat treatment which accompanies the execution of a weld. In order to gain some quantitative appreciation of the way in which the metallurgical effects of welding depend on welding variables, geometry, and physical properties, considerable attention has …

An Experimental Investigation Of The Relation Between The Cooling Rate And Welding Variables In Fusion Welding, Sujit Biswas

Theses and Dissertations

In the field of welding metallurgy, much attention is given to the effects which the welding arc or flame will have on the structure and properties of the metals being joined. The engineer is interested in the intensity and extent of physical changes brought about by the unavoidable "heat treatment" which accompanies the execution of a weld.

Application Of The Finite Element Method Using The Method Of Weighted Residuals To Two Dimensional Newtonian Steady Flow With Constant Fluid Properties, Mien Ray Chi

Theses and Dissertations

In this thesis we will be concerned with the two-dimensional steady laminar Newtonian fluid flow with constant fluid properties in Cartesian coordinate system. More precisely, we will consider a flow for which the interesting dependent variables, for example, velocity, vorticity, stream function, etc., are expressible as functions of two independent Cartesian coordinates.

A Survey Of Selected Business Firms In Manitowoc County, Wisconsin, To Determine The Types And Requirements Of Entry-Level Office Occupations And The Types Of Equipment Being Used., Sandra Adelman

Theses and Dissertations

No abstract provided.

Career Education And Its Implication For Vocational-Technical Education, Jack H. Adams

Theses and Dissertations

The major purpose of this independent study was to see if there were any implication forthcoming for Vocational Education as we know it today, "because of the new concept of Career Education. In trying to accomplish this purpose, the area of Vocational Education, as well as the new concepts of Career Education, were examined. Both the past and future needs of the students were considered. The immediate and future needs of creating this new concept of Career Education was considered. A group of charts were presented for the purpose of giving anyone considering this new approach, a choice of the …

Rotary Engine Designs Based On A Particular Off-Set Cavity/Rotor System, M. Dean Black

Theses and Dissertations

The subject of this thesis is a family of rotary engines, each consisting of a two-tipped rotor turning about an off-center axis within a nearly round cavity.

A Historical Development Of Pooling Of Interest, Jim Oleson

Theses and Dissertations

The term "pooling of interests" was first used by the AI CPA in a report issued in 1945 by the Committee on Public Utility Accounting. Since that time, the pooling of interests concept went through much debated change and revision

The Accounting Principles Board issued their first opinion on pooling of interests in Accounting Research Bulletin Forty. This bulletin was followed by three more. During this time the criteria proposed in these bulletins as a basis for classifying a business combination as a pooling of interests were being constantly modified. Many of the changes began to liberalize the accounting treatment …

Analysis Of An Orthogonal Grid Composed Of Straight And Circular Members, Te-Hsiung Lu

Theses and Dissertations

This thesis has been written for the purpose of using the stiffness method to analyze an orthogonal grid composed of straight and circular members that is loaded perpendicular to the plane of grid. In the development of theory, each member is assumed to carry bending, torsion and shearing force, and the axial force is neglected.

It is much more complicated to derive the stiffness matrix for a circular member than that for a straight member. The stiffness matrix for a circular member is derived by using the strain energy and Castigliano's theorem while the stiffness matrix for a straight member …

Multiple Unit Correlates Of Discrimination Learning In Rats, Lynn C. Conrad

Theses and Dissertations

Multiple unit recording is a relatively new electrophysiological recording technique which records spike potentials from many neurons. In several laboratories, systematic changes have been observed during classical and instrumental conditioning but none under other conditioning procedures. The present study attempts to extend the method of multiple unit recording to discrimination learning using rats as experimental animals.

Five permanent electrodes were implanted in each of six rats. The sites implanted were the dorsal medial hypothalamus, the amygdaloid complex, the reticular formation, the medial geniculate, and the inferior colliculus. The animals were subjected to discrimination training which utilized tone as the auditory …

An Historical, Jim Olseon

Theses and Dissertations

No abstract provided.

The Optimum Design Of A Shock Absorber To Minimize The Force Transmitted To The Supporting Base Of A Vibrating Equipment, J. P. Singh

Theses and Dissertations

The present study involved two types of analyses as a part of the investigation leading to the design of a shock absorber providing optimal vibration control and minimum transmissibility. Those two types of analyses were the following.

Determination Of Drag And Lift Coefficients For A Spinning Baseball, M. B. Parekh

Theses and Dissertations

Few experiments have been carried out in the past to deter mine the effect of the lift and the drag forces on the trajectory of a ball used in any game. In a baseball game, it was reported that sometimes the ball took a sharp turn aburptly in the region of 15 to 20 feet from the home plate. This indicated a sudden change of the forces acting on the ball. The principal forces acting w ere as fol lows: 1. Weight of the ball. 2. Drag force acting in the direction parallel to the relative wind. 3. Lift force …

Marketing Practices Of Motorcycle Distributors In The United States, Dennis J. Elbert

Theses and Dissertations

The purpose of this thesis was to describe and analyze the marketing practices of motorcycle distributors in the United States. The information used in this thesis was obtained primarily from a mail questionnaire survey sent to motorcycle distributors throughout the United States.

The majority of the motorcycles sold in the United States in the most recent year of record, 1970, were imported. With the inclusion of domestic manufactured motorcycles and parts, sales of used motorcycles and cost of service, the total value of the motorcycle business in the. United States in 1970 was veil over a billion dollars.

There were …

The Dynamic Characteristics Of A Beam Whose Material Is Represented By A Three-Parameter Viscoelastic Solid, Vishnurao K. Devkar

Theses and Dissertations

Man observes many phenomena occurring in nature which he can use to his benefit. He observes how physical quantities vary as a function of their environment in order to predict how these variations will affect a system he wishes to design. For this purpose, he must establish a model that is representative of the relation between those physical quantities and certain environments to which they are subjected.

Application Of The Maximum Deformation Theory Of Failure To The Torsional Failure Due To Fracture Of 4140 Steel, C. V. Krishna Kumar

Theses and Dissertations

Forming is the fastest way of changing the shape of a piece of metal. It is the most economical process to use for high-volume mass production when the shape of a part is such that it can be made by one of the forming operations

A Follow-Up Study Of Master's Degree Graduates Of The University Of North Dakota Department Of Industrial Technology, Gary L. Gorrman

Theses and Dissertations

No abstract provided.

Software Simulation Of The D17b Computer, Bruce Chatterton

Theses and Dissertations

A software program has been written which simulates the functions of the Minuteman D17B computer at the register transfer level. The simulation program is written in the FORTRAN Extended language to be used on the Intercom System (teletype) of a CDC 6600 computer system. The simulation program consists of a main program and eight subroutines. A programming language for the D17B simulation was formed which contains numbers and load codes, switches, and miscellaneous commands. Example programs run on the simulated computer have been included to show the types of output available.