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Articles 11551 - 11580 of 11642
Full-Text Articles in Entire DC Network
Europe's Contribution To American Civilization, Alfred Zehnder
Europe's Contribution To American Civilization, Alfred Zehnder
Swiss American Historical Society Newsletter
You have invited me to speak about Switzerland's contribution to American civilization. This is quite a task. I don't intend to give you today a complete study on this subject. You will see later why. Switzerland is not only a small country in the heart of Europe, but it is Europe. And Europe is Switzerland. It is impossible to determine exactly what part in the Swiss contribution is genuine Swiss, and what part is European. That is why I would like to invite you to try with me to discover the great ideas and the fact s which ought to …
The “Renaissance” In Recent Thought: Fifteen Years Of Interpretation, De Lamar Jensen
The “Renaissance” In Recent Thought: Fifteen Years Of Interpretation, De Lamar Jensen
BYU Studies
The term "Renaissance" has undergone a revolution in meaning. A basic review of what the term refers to would be helpful in increasing communication and cooperation among scholars of varying disciplines. This article surveys recent scholarly treatments of the history, politics, economy, philosophy, science, literature, and art of the Renaissance period.
The Institute Of Government Service, Stewart L. Grow
The Institute Of Government Service, Stewart L. Grow
BYU Studies
Recognizing that the governments of the world are facing increasingly complex problems, in 1961 Brigham Young University introduced new graduate programs in the Institute of Government Service. These interdisciplinary programs of study prepare students of high moral character and motivation to make a meaningful impact on government, business, and education.
A History Of The Emery County Progress-Leader And Its Predecessors, Bruce L. Olsen
A History Of The Emery County Progress-Leader And Its Predecessors, Bruce L. Olsen
Theses and Dissertations
The purpose of this study will be to make an accurate descriptive account of past journalistic endeavors in Emery County with special emphasis placed on the characteristics of the publications. The study will attempt to illustrate the characteristics and tone of each editor's or publisher's product. Available biographical material and characteristics of publishers and editors will be listed where possible. Factors which led to launching and/or discontinuation of publication, economic factors, and special problems will be discussed where material is available to accurately do so. The study will also examine the significance of the newspapers in the change and growth …
Simultaneous Development Of Velocity And Temperature Profiles In The Annulus With Laminar Flow And Both Walls At Constant Temperatures, Stephen Lothair Ritchie
Simultaneous Development Of Velocity And Temperature Profiles In The Annulus With Laminar Flow And Both Walls At Constant Temperatures, Stephen Lothair Ritchie
Theses and Dissertations
Forced convection heat transfer in the entrance region of tubes and ducts has been studied extensively since the pioneering work of Graetz. Most of the published solutions for axial flow heat transfer are based on the idealization of either fully established or uniform velocity profiles with developing temperature.
Analysis And Discussion Of The Effect Of Heat Loss From The "Insulated" Face Of Thin Foil Heat Flux Meters, Mont Johnson Stevens
Analysis And Discussion Of The Effect Of Heat Loss From The "Insulated" Face Of Thin Foil Heat Flux Meters, Mont Johnson Stevens
Theses and Dissertations
The object of this work was to investigate the effect that heat losses from the "insulated" face of thin foil heat flux meters has upon the sensitivity of heat flux meters. In the past it has been characteristic of any analysis done on heat flux meters to assume that the insulation on the back face of the foil was a perfect insulator and thereby neglect the effects of heat losses from this "insulated" face. It is hoped that the information given in this thesis will be of value in determining how the geometric and heat transfer parameters affect the operation …
Investigation Of Aerodynamic Hysteresis, Gerald Heber Peterson
Investigation Of Aerodynamic Hysteresis, Gerald Heber Peterson
Theses and Dissertations
The word hysteresis is derived from a Greek word meaning "to lag 'behind". As specifically applied to fluid flow around bodies with transient angles of attack in and near the stall region, "aerodynamic hysteresis" is used to describe the effect of delay in boundary layer separation and reattachment upon the lift, drag and pitching moment. Experimental work done on airfoils by H. Studer showed that for increasing angles of attack flow "separation is delayed to an angle of attack appreciably greater than that for a stationary airfoil. On the return movement, re-establishment of a smooth flow is also delayed." [1]* …
Design Of Regeneratively Cooled, High Temperature, Clean Gas Plasma, Roger Carver Bartlett
Design Of Regeneratively Cooled, High Temperature, Clean Gas Plasma, Roger Carver Bartlett
Theses and Dissertations
The objective of this thesis was the design of a regeneratively cooled, high temperature, clean gas plasma generator facility. This facility was desired to extend the high temperature research capabilities of the Department of Mechanical Engineering.
Evaluation Of Methods Used In The Determination Of Stability Constants Of The Thallium (Iii)-Chloride System At Twenty-Five Degrees, Nelson Kent Dalley
Evaluation Of Methods Used In The Determination Of Stability Constants Of The Thallium (Iii)-Chloride System At Twenty-Five Degrees, Nelson Kent Dalley
Theses and Dissertations
The difficulties encountered in the determination of equilibrium constants in systems with small, not directly rneasureable free ligand concentrations are discussed. These difficulties are illustrated using the determination of the formation constants of the Tl(III)-Cl- system as a specific example. Four methods are used and evaluated in this study. They are (1) the corresponding solutions method, (2) the method of Fronaeus, (3) the solubility of AgCl in Tl(III) solution method and (4) the method of Hugus. A discussion and derivation of each of these methods is given. The first three methods given and free ligand concentration data from which formation …
A Brief Historical Résumé Of Herpetological Studies In The Great Basin Of The Western United States, Part I. The Reptiles, Benjamin H. Banta, Wilmer W. Tanner
A Brief Historical Résumé Of Herpetological Studies In The Great Basin Of The Western United States, Part I. The Reptiles, Benjamin H. Banta, Wilmer W. Tanner
Great Basin Naturalist
No abstract provided.
An Experimental Investigation Of The Effect Of A Constant Body Force Field Upon The Drag Coefficient Of A Sphere, Brent Evans Boyack
An Experimental Investigation Of The Effect Of A Constant Body Force Field Upon The Drag Coefficient Of A Sphere, Brent Evans Boyack
Theses and Dissertations
The object of this thesis was to present the method and results of an experimental determination and correlation of the drag coefficients of accelerating spheres.
The Systematics Of Crotaphytus Wislizeni, The Leopard Lizards, Part I. A Redescription Of Crotaphytus Wislizeni Wislizeni Baird And Girard, And A Description Of A New Subspecies From The Upper Colorado River Basin, Wilmer W. Tanner, Benjamin H. Banta
The Systematics Of Crotaphytus Wislizeni, The Leopard Lizards, Part I. A Redescription Of Crotaphytus Wislizeni Wislizeni Baird And Girard, And A Description Of A New Subspecies From The Upper Colorado River Basin, Wilmer W. Tanner, Benjamin H. Banta
Great Basin Naturalist
No abstract provided.
Analysis Of The Transient Response Of A Flat Rotating Disk By Generalized Transforms, Kenneth Wayne Chase
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
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
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
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
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
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.
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
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 Revision Of The Bark Beetle Genus Dendroctonus Erichson (Coleoptera: Scolytidae), Stephen L. Wood
A Revision Of The Bark Beetle Genus Dendroctonus Erichson (Coleoptera: Scolytidae), Stephen L. Wood
Great Basin Naturalist
No abstract provided.
Birds Of The Nevada Test Site, C. Lynn Hayward, Merlin L. Killpack, Gerald L. Richards
Birds Of The Nevada Test Site, C. Lynn Hayward, Merlin L. Killpack, Gerald L. Richards
Brigham Young University Science Bulletin, Biological Series
No abstract provided.
A Study Of The Vibration Characteristics Of A Thin Shell Hyperbolic Paraboloid, Farrin W. West
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.
Biotic Communities Of The Nevada Test Site, Dorald M. Allred, D Elden Beck, Clive D. Jorgensen
Biotic Communities Of The Nevada Test Site, Dorald M. Allred, D Elden Beck, Clive D. Jorgensen
Brigham Young University Science Bulletin, Biological Series
This paper consitutes a terminal report to the United States Atomic Energy Commission for Contract AT(11-1)786. It provides a listing of the fauna known to occur at the Nevada Test Site, with designation of ecological distribution and relative density. It is designed to serve as the basic faunistic reference source, in subsequent studies, related to geographical and ecological features at the test site.
An Analysis Of Old Testament Chronology In The Light Of Modern Scripture And Scientific Research, Dale Alder Mcallister
An Analysis Of Old Testament Chronology In The Light Of Modern Scripture And Scientific Research, Dale Alder Mcallister
Theses and Dissertations
The first objective of this thesis was to examine the Old Testament chronology carefully to see how it is computed. The second objective was to examine the modern scriptures to see what contributions they make in establishing a more accurate, reliable chronology. The third objective was to examine certain hypotheses in archaeology, carbon dating processes, and geology that seem to conflict with the Old Testament chronology with the purpose in mind of learning how accurate their findings are and what possibilities exist for a closer harmony between these sciences and the Old Testament scriptural chronology.
A Study Of The Social And Economic Conditions Of A Sample Of The Blind Members Of The Church Of Jesus Christ Of Latter-Day Saints, M. Lynn Cruser
A Study Of The Social And Economic Conditions Of A Sample Of The Blind Members Of The Church Of Jesus Christ Of Latter-Day Saints, M. Lynn Cruser
Theses and Dissertations
The purposes of this study were (1) to learn how many persons who were members of the Church of Jesus Christ of Latter-day Saints were blind, (2) to determine the social and economic conditions of these blind members, and (3) to learn what the Church of Jesus Christ of Latter-day Saints has done to promote employment of blind members through its Welfare Program, and how this was accomplished.
Bibliography Of Utah Aquatic Biology, No. Ii, Earl M. Christensen
Bibliography Of Utah Aquatic Biology, No. Ii, Earl M. Christensen
Great Basin Naturalist
No abstract provided.
A New Emphasis For The American Dream, Weldon J. Taylor
A New Emphasis For The American Dream, Weldon J. Taylor
BYU Studies
The American ideals of hard work, thrift, and perseverance are rooted in mankind's desire to meet his basic physical needs. Since in today's society these needs are not as pressing, the basic American values have begun to lose their motivating power. Today, the desire to be a creative and valued member of an organization should become a bigger motivator than the simple drive for wealth. Some whose comments have contributed to the idea of this new motivation include O. A. Ohmann, A. A. Stambaugh, Abraham T. Collier, and Stanley F. Teele.
A Parametric Study Of The Heat Transfer Characteristics Of A Moving Band Heat Exchanger, Larry Hyde Brim
A Parametric Study Of The Heat Transfer Characteristics Of A Moving Band Heat Exchanger, Larry Hyde Brim
Theses and Dissertations
In recent years much attention has been devoted to the development of efficient heat exchangers. The regenerative or moving matrix heat exchanger is one type which has been considered. Most regenerative heat exchangers use one of the conventional types of high area matrices mounted in a drum or disk in such a manner that it can be moved in a continuous cycle from a cold fluid stream to a hot fluid stream and back again. A rather different approach to the design of a regenerative heat exchanger which has been patented in this country is a set of flexible moving …
Stress Analysis Of An Infinite Cylinder With An Irregular Shaped Cavity Using Complex Variable Techniques, Gerald H. Lindsey
Stress Analysis Of An Infinite Cylinder With An Irregular Shaped Cavity Using Complex Variable Techniques, Gerald H. Lindsey
Theses and Dissertations
The advancement of modern technology has brought with It a demand upon the engineer for more thorough analysis techniques. This has been precipitated by the advent of missiles and space-craft that do not permit regular inspections to determine causes of failure, crack propagation, design weaknesses, etc. Thus, a more complete analytical work must be performed to facilitate a foreknowledge of reaction and performance of a particular design to its environment.