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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 …

Kinetic Investigation Of The Hydrochlorination Of Olefins In Aprotic Solvents And Sulfonation Of Idobenzene And The Selectivity Relation, Thomas Glen Davies

Theses and Dissertations

Kinetic investigation of the hydrochlorination of cyclohexene and cis-2-butene in n-heptane with SnCl4 as catalyst shows that the reaction is second order with respect to both olefin and catalyst. The specific rate constants at 25° , 0° and -23.8°C and the activation parameters were determined. Investigation of the Ga2Cl6 catalyzed hydrochlorination of cyclohexene and cis-2-butene in dichloromethane indicates that alkylation and polymerization compete with the hydrochlorination reaction in the presence of the solvent. The relative reaction rates and the isomer distribution for the sulfonation of iodobenzene by S35O3 have been determined in refluxing SO2 at -10°C. The reaction resulted in …

Sulfonation Of Chlorobenzene And The Selectivity Relation ; Bromine Addition To Cyclohexene In Dichloromethane ; Thorpe's Synthesis Of The Caged Acid, 4-Methyltricyclo[1.1.0.0[Superscript 2-4]] Butane-1,2,3-Tricarboxylic Acid, John A. Gurney

Theses and Dissertations

Aromatic sulfonation and some substitution reactions of chlorobenzene show deviations in the selectivity relation. A determination of chlorobenzene sulfonation provided the following rate ratio relative to benzene and partial rate factors: 1.0, [---] of 0.064 , mf 1.7 and pf 4. 2. Our work, Olah's nitration, Ferguson's bromination and Stock's chlorination define a new relation that can be express by adding an entropy term (A) to the selectivity relation. We determined the rate of bromine-cyclohexene addition in dichloro-methane at 0° to provide a basis for a systematic variation of solvents at low temperature. An unusual zero-order reaction was encountered. The …

Dissertation In Organic Chemistry. Part I, The Fate Of The Anilino Moiety In The Rearrangement Of Α-Anilonoketones. Part Ii, Partial Rate Factors For Sulfonation Of Bromebenzene With Sulfur Trioxide. Part Iii., Preliminary Survey On The Effect Of High Pressure On Ferrocene And Cycloöctatetraene, Jerold Carter Robertson

Theses and Dissertations

Part I. The rearrangement of α-anilinoketones was studied in an effort to determine the mode of movement of the nitrogen moiety. A crossover experiment was carried out with an equimolar mixture of 2-(4- bromoanilino)-1-(4-bromophenyl)-2-(4-methoxyphenyl) ethanone and 2-(4-chloroanilino)-1-(4-chlorophenyl) -2-(4-methoxyphenyl)ethanone with γ- picoline hydrobromide as the catalyst. The reaction product was analysed by means of a mass spectrograph. The results of the analysis indicate a crossover of the nitrogen moiety during rearrangement. This indicates that the nitrogen moiety moves in an intermolecular manner during the rearrangement. Part II. The isomer distribution from the sulfonation of bromobenzene with sulfur trioxide was determined by …

An Analytical Study Of The Formal Treatment Of The Cantus Firmus In Thirty Chorale Preludes On Well-Known Hymn Tunes Op. 68, 69, And 70, By Flor Peeters, E. Donnell Blackham

Theses and Dissertations

This study represents an effort to analyze the forms used by Flor Peeters in his Thirty Chorale Preludes on Well-Known Hymn Tunes, op. 68, 69, and 70. Through this analysis it has been found that Flor Peeters has systematically used certain devices in the treatment of the cantus firmus. Furthermore, these devices can be used as a criterion in developing a classification system for the chorale preludes, which logically divide into six groups or types.

The first type includes the chorale preludes in which the composition begins immediately with the first phrase of the chorale melody and continues without interruption …

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.

Differential Salt Tolerance Of Hordeum Jubatum, Agropyron Trachycaulum, And Their Natural Hybrid Elymus Macounii, Marian Lucy Hanna

Theses and Dissertations

Because plants show a wide range of variation in growth in the presence of excessive concentrations of soluble salts in the soil, this study was undertaken to determine the effects of various concentrations of NaCL and Na2SO4 on the growth and development of Hordeum jubatum, Agropyron trachycaulum, and the natural hybrid of these two plants, Elymus macounii.

A Literature Review Covering The Effect Of Residual Stresses On Fatigue Strength Of Steel, Clarence A. Calder

Theses and Dissertations

Fatigue fracture usually is defined as the failure of a part at a stress below its breaking stress due to repetitive loading conditions. It is now a well known fact that a part, designed for a maximum stress well below the yield point of the material, may be very apt to fail under cyclic loading conditions over a period of time. The metal appears to "wear out" after a time just like humans do and fatigue failure occurs. Metal fatigue may be contrasted to animal fatigue in that l) its detection before the latter stages is normally difficult if not …

The Taxonomic Problem Of Polycelis In The United States, Lee F. Braithwaite

Theses and Dissertations

During the spring of 1941, Dr. C.L. Hayward, of the Brigham Young University zoology department, while on a field trip with his ecology class found some interesting planaria.ns at a place called Stewart's Flats on Mt. Timpanogos, Utah County, Utah. A fellow teacher, Dr. D. E. Beck, sent live specimens to Dr. L. H. Hyman of the American Museum of Natural History for identification. Although the specimens arrived in New York as a "putrid smelling soup,"1 the specimens, through correspondence, were thought to be Polycelis coronata (Girard), the same species Hyman collected in South Dakota during August 1929.

Contributions Of The Mccune School Of Music And Art To Music Education In Utah, 1917-1957, Donald George Schaefer

Theses and Dissertations

The McCune School of Music and Art was a private institution, owned and operated by the Church of Jesus Christ of Latter-day Saints in Salt Lake City, Utah. Located at First North and Main Streets, the School offered outstanding courses in music, dance, art, speech and dramatics. From 1917 until 1919 the institution was part of the Latter-day Saints High School music department under the direction of B. Cecil Gates. Following 1919 the organization became the Latter-day Saints School of Music, offering courses above the high school level. During Tracy Y. Cannon's administration from 1925 until 1950 the School issued …

A Translation Of Chapter Lxvi Of Book I, Part I Of Fra Lodovico Zacconi's Prattica Di Musica, Diran Akmajian

Theses and Dissertations

It is common knowledge that the practice of improvisation, variation, and ornamentation was widespread during the late Renaissance. Numerous authors testify to this, and scores of manuals exist that ''teach11 this particular skill. One of the most important theorists to write such a manual was Lodovico Zacconi, a monk of the order of Saint Augustine. Chapter LXVI of Part I of his Prattica di Musica is one of the most detailed of its kind. Because there is a genuine revival today of performance of Renaissance vocal music, and because sufficient knowledge is yet to be had of the practices of …

Diffraction Of Spherical Scalar And Vector Waves At Axial Points Of A Circular Aperture And Disk, Keith Leon Mcdonald

Faculty Publications

The following work treats Kottler's saltus problem of diffraction of electromagnetic waves emitted by a Hertzian oscillator source and the analogous Kirchhoff's scalar problem of waves emitted by a point source. The medium is a homogeneous isotropic dielectric. In the vector case a new exact solution of the basic integrals is presented, at axial points only, (a) behind a circular aperture in a "black'' screen, and (b) behind its complementary "black'' disk. The relative time-averaged intensity of energy flow is plotted for the disk only. It is shown that the scalar theory predicts considerably larger values than the electromagnetic theory …

Vertebrate Distribution In Relation To Certain Habitats In Central Kane County, Utah, Clyde L. Pritchett

Theses and Dissertations

This thesis is a study of vertebrate distribution in relation to certain habitats in cetral Kane County, Utah. Four areas were trapped, two in a sagebrush community and two in a grassland community. Oryzopsis hymenoides (Roem & Shult.) Ricker, Hilaria jamesii (Torr) Benth., Ephedra torreyana S. Watts and Guttierrezia sarothrae (Purah.) Britt and Rusby, were the dominant plants in the grassland community. The dominant plants in the sagebrush community were Artemisia tridentata Nutt., and Hilaria jamesii (Torr.) Benth. Dipodomys ordii cupidineus Goldman was the most common mammal trapped in both communities. Peromyscus maniculatus sonoriensis (LeConte) was trapped most often in …

An Investigation Of Coulometric Methods Of Analysis Of 1,1-Dimethylhydrazine, David M. Creighton

Theses and Dissertations

The oxidation of 1,1-dimethylhydrazine by bromine has been studied using a coulometric method of bromine generation, and a dual intermediate system of bromide and cupric ions in solution. The system allowed over-generation of bromine and back-titration by cupric ion. The results of the investigation showed that the mechanism of oxidation is not fixed, but is a function of the concentration of bromine in the solution at any time. Additional studies have been recommended, whereby the mechanisms of the reactions may be determined.

The Aerodynamic Drag Of Spheres, Leon Rouzelle Scott

Theses and Dissertations

A literature survey was conducted to determine the factors which affect aerodynamic drag of spheres. Graphs are presented which show the effect of each variable where such information was available. Equipment was designed and built for the purpose of studying the effects of acceleration on the aerodynamic drag of spheres. Special emphasis was placed on the measurement and control of each of the other variables which can affect the drag. Tests were conducted using large spheres in air and water to show that the method presented can produce a valid determination of the drag coefficients. The numerical values of the …

Influence Of Finnish Kalevala In The Composition Of Longfellow's Song Of Hiawatha, Douglas Hardy

BYU Studies

No abstract provided.

Late On Mother's Day, Marden J. Clark

BYU Studies

No abstract provided.

Mormon Bibliography 1961, Ralph W. Hansen

BYU Studies

This bibliography catalogues articles and books published in 1961 on Mormon subjects that would be of interest to LDS scholars.

What Is The Proper Role Of The Latter-Day Saint With Respect To The Constitution?, John T. Bernhard, Mark W. Cannon, Richard L. Bushman, Quinn G. Mckay, Richard Bitner Wirthlin, Garth L. Mangum

BYU Studies

A panel discussion held at Brigham Young University in February 1962 discussed the importance of the U.S. Constitution to members of the Church of Jesus Christ of Latter-day Saints. The five participants covered topics such as the preservation of liberty, the LDS belief that the Constitution is divinely inspired, the question of whether church members' political beliefs would affect their standing in the church, and the role of the government in the American economy.

The Diary Of James J. Strang Mark A. Strang, Klaus Hansen

BYU Studies

No abstract provided.

Music Education In The Church Of Jesus Christ Of Latter-Day Saints, Harold Laycock

BYU Studies

Leaders of the Church of Jesus Christ of Latter-day Saints have briefly discussed the importance of music in the Church's worship and culture. However, Latter-day Saint music educators are left wondering how they can most effectively help the Church reach its musical potential. This article focuses on recreational music and music education in Church history in order to better understand music's role in God's plan of happiness for his children.

Full Issue, Byu Studies

BYU Studies

No abstract provided.

Introductory Pages, Byu Studies

BYU Studies

No abstract provided.

Boy On A Bus, Arta Ballif

BYU Studies

The narrator of this short story observes people interacting with a young blind boy on a bus. The difficulties of his life are eased when he and his mother laugh.

Leonardo Da Vinci--Pioneer Geologist, Daniel J. Jones

BYU Studies

Although Leonardo da Vinci's accomplishments in art, medicine, and engineering are well known, his insights into geology are not. This article seeks to bring attention to principles of geology that, widely recognized today, were first articulated by da Vinci in his manuscripts. His writings about fossils, water and erosion, and internal earth forces constitute an important and relatively unknown contribution to earth science.

Control System Digital Computer Transfer Function Simulation, Jens J. Jonson

Faculty Publications

The z transform of simple delay, integrator, leadlag, and differentiator networks are suggested as the basic building blocks for simulating complex control systems on a digital computer. The system parameters retain their explicit identity, thus facilitating analysis and design of the system as a function of specific parameter changes.

End Matter, Vol. 2 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

A Comparative Study Of The Species Of The Genus Crotaphytus Holbrook (Iquanidae), Wilbur Gerald Robison Jr., Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

The anterior musculature of C. wislizeni and C. collaris is described in detail and compared. Size and number relationships of the skull and its component bones, the sternum, the clavicle, the parts of the hyoid, the general body form, certain scales and teeth, and the eggs per clutch were determined for large samples of both species and then statistically compared. The general character of many structures is also compared and notes are made on C. reticulatus.

The differences encountered by this study, as well as the valid ones of those listed by Smith (1946:158–159) are not considered to be important …

Front Matter, Vol. 2 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

The 1912 Presidential Election In Utah, C. Austin Wahlquist

Theses and Dissertations

The purpose of this study is to determine why, in the light of local conditions and problems, Utah chose to support President Taft. Why Did Utah prefer the conservative policies of this nationally unpopular figure, while the rest of the nation favored the progressivism of Wilson or the progressivism of Roosevelt? What were the national issues which affected Utah? Who exercised political control in the state? What was the party alignment? How important was newspaper opinion? To what extent was personal friendship for Taft, on the part of local Republican leaders, a factor? Did a recent outbreak of Mormon-non-Mormon friction …