Digital Commons Network^™

Transistorized Television Synchronizing Generator, Lawrence P. Segar

Theses and Dissertations

No abstract provided.

A Review Of Conflicting Opinions In Objectives, Approaches, Testing And Grading In Elementary High School Bookkeeping Found In The Professional Literature From 1953 To 1963, Ethel L. Thompson

Theses and Dissertations

No abstract provided.

Study Of A Pressure Group : The Missouri River Diversion Association, Verne D. Hull

Theses and Dissertations

No abstract provided.

The Ryukyu Islands : An American Experience In Military Government, James Angus Graham

Theses and Dissertations

No abstract provided.

A Determination Of The Needs For Information Of School Board Members Of Independent School Districts In Minnesota, Ole Everette Haugejorde

Theses and Dissertations

No abstract provided.

Factors Influencing Industrial Arts Achievement For Slow Learner And Major Work Classes In Winnipeg, Manitoba, Maurice S. Vaughan

Theses and Dissertations

No abstract provided.

Compressive Strength Of Stone Aggregate Concrete Using A North Dakota Lignite, Fly Ash Additive, Antony Vairamides

Theses and Dissertations

No abstract provided.

Factors That Influence The Selection Of Business Teaching As A Career Among Students From Selected Colleges In The United States, Patricia Watson Thornton

Theses and Dissertations

No abstract provided.

Bod Versus Cod For A Steam-Peeled Potato Waste, George W. Boyer

Theses and Dissertations

No abstract provided.

Evaluation Of Constriction Of Space As A Factor In Distortion Of Depth Perception, Ronald D. Ebinger

Theses and Dissertations

No abstract provided.

Impact Of Geography Upon North Dakota's Outdoor Vacation And Recreation Industry, David R. Torkelson

Theses and Dissertations

No abstract provided.

Design And Instrumentation Of An Automotive Air Conditioning Test Facility, Donald L. Stich

Theses and Dissertations

No abstract provided.

Analog Computer Simulation Of Nyquist Stability Criterion Plots, Charles R. Mcclung

Theses and Dissertations

No abstract provided.

An Evaluation Of The Implementation Of The Manpower Development And Training Act Of 1962 In The State Of North Dakota, Richard K. Armey

Theses and Dissertations

No abstract provided.

Analysis Of The Transient Response Of A Flat Rotating Disk By Generalized Transforms, Kenneth Wayne Chase

Theses and Dissertations

The object of this thesis was to lay a foundation for a comprehensive study of the dynamic response of rotating members. This initial phase of the study includes a theoretical investigation and proposes experimental techniques for the determination of the stresses and strains in a thin, rotating disk with a concentric hole, subjected to transient shaft inputs. There are many practical applications of this problem including computor memory storage disks, turbine rotors, grinding wheels, saw blades, gears, optical reflectors, and solar sails for space vehicles.

Analysis Of Steady State Heat Flux Measurement By The Initial Slope Technique, Charles Earl Cartmill

Theses and Dissertations

The impulse technique is progressively being developed for determining the steady state rate of heat transfer systems involving exponential temperature-time histories. A pulse thermocouple system has been utilized in such a technique having a steady state response time on the order of one time constant of the thermocouple used. When an impulse thermocouple system is not used, the required time in obtaining the steady state value is on the order of five time constants or the time required to reach steady state.

Heat Flux Measurement By Miniature Calorimeters, Gary Rex Coffin

Theses and Dissertations

During recent years an increasing number of technical firms and manufacturers have begun to specify heat flux, energy input per unit area per unit time, as a testing and designing criteria. This change in the boundary condition (to heat flux from temperature excess or others) evolved from the idea that each material has a characteristic burning temperature. Therefore, the rate of ablation or burning depends mainly upon the rate of energy input into the specimen, and not its temperature. Thus, the need for a flux measuring device became more acute.

Radiant Flux Distribution From Concave Radiation Sources, Richard K. Duke

Theses and Dissertations

In order to analyse the radiant heat transfer characteristics of a concave source, two vital concepts must be clearly understood. The first is called the apparent emissivity Ea and is a function of both the local total emissivity E and of the geometry of the source. Although the total emissivities of ordinary substances range between zero and one, the two extremeties never occur. Surface emissivities which approach these values in the limit, must be created mechanically from materials in the range 0

The Aerodynamic Drag On Spheres Under Acceleration, Charles Earl Nielson

Theses and Dissertations

The requirement of a greater understanding of the behavior of solids-gas systems has shown itself profoundly with the advancement of science and technology during recent years. The range and variety of processes in which these systems play an important role is exceptionally broad. These processes range from meteorological disturbances such as dust storms, rain and snow, to the use of vacuum cleaning equipment. With the advancement of aircraft and space technology the influence of these systems is again felt in such cases as the motion of rockets, missiles and aircraft in flight, the behavior of liquid droplets or metallic particles …

The Verification And Use Of A Hot-Wire Anemometer In Turbulence Measurements, Charles Young Warner

Theses and Dissertations

One very important part of research is the development of effective, reliable instruments. The measurement of turbulence in flow fields is a complex research problem. It depends heavily upon the hot-wire anemometer. This thesis describes the evaluation and use of a constant- current hot-wire anemometer, and presents the equations governing its use for turbulence measurements. The thesis first enumerates and explains some of the important parameters of turbulent flows, providing the basis for the discussion of their measurement which follows. The cooling of a heated wire in forced convection and a typical anemometer circuit are discussed. Derivations of the instrument …

Design And Fabrication Of An Apparatus To Determine Heat Transfer Coefficients In An Air-Particle Mixture Over A Horizontal Flat Plate At Uniform Temperature, Louis G. Hunter Jr.

Theses and Dissertations

The study of two phase flow, where a finely divided solid is suspended in a fluid medium, has received considerable attention in the last five years due to the increased number of systems in which this phenomena occurs. The two most important areas involving the gas- particle mechanism are nuclear reactor heat exchangers and liquid and solid rockets.

Study Of Aerodynamic Forces On An Unsymmetrical Body As It Is Oscillated In A Air Stream, David Rees Tree

Theses and Dissertations

The object of this work was to design and build equipment to measure the aerodynamic forces which will cause self-induced oscillations of a body having an unsymmetrical cross-section, such as a D-section. This self-induced oscillation has been called "stall flutter" or in electrical transmission lines, "galloping-transmission lines." It is hoped that this equipment will be used to gain basic Information about these aerodynamic forces.

A Follow-Up Study Of The Graduates Of Twin Valley (Minnesota) High School For The Years 1959, 1960, 1961, And 1962, Richard F. Haberer

Theses and Dissertations

No abstract provided.

The Historical Development Of Personal Baseball Equipment From Origin Of The Game To Present Day, Donald J. Shore

Theses and Dissertations

No abstract provided.

An Evaluation Of Secondary School Guidance Program Measured By Selected Collegiate, Darlne F. Brown

Theses and Dissertations

No abstract provided.

An Investigation Of The Rheological Characteristics Of Leonardite Gels And Lignite Slurries, Roger L. Adams

Theses and Dissertations

No abstract provided.

The Production Of Activated Carbon From North Dakota Lignite, Robert C. Thelen

Theses and Dissertations

The feasibility of producing activated carbon from lignite using a fluid bed reactor was investigated. Steam was used as the activating agent and was- reacted with carbonized lignite at elevated temperatures. The reaction was performed in a fluidized bed type reactor 1 l/2" in diameter and 24" in length.

Tests indicate that activated carbon with adsorptive properties equal to or better than commercial Darco activated carbon can be produced from lignite in a fluidized reactor. This conclusion was based on the results from heat of wetting and service time tests which were applied to both Darco activated carbon and the …

A Study Of The Vibration Characteristics Of A Thin Shell Hyperbolic Paraboloid, Farrin W. West

Theses and Dissertations

Recent progress in structural engineering has been marked by the increased use of thin shells as load carrying members. In particular, shells of revolution have been widely utilized in the missile industry whereas shells of arbitrary shape have been incorporated in the architectural design of today's modern buildings. Missile applications have been extensively studied both statically and dynamically. However, architechural applications have generally been limited to the statics problem with little consideration being given to the dynamic behavior of these unique structures.

A Comparison Of Transposed Versus Non-Transposed Transmission Lines, Ordean S. Anderson

Theses and Dissertations

No abstract provided.

A Study Of The Reasons Why Selected Business Education Subjects Are Not Taught In The Public High Schools Of North Dakota, Wayne D. Davison

Theses and Dissertations

No abstract provided.