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Low temperature heat capacity of lutetium and lutetium hydrogen alloys

Description: The heat capacity of high purity electrotransport refined lutetium was measured between 1 and 20/sup 0/K. Results for theta/sub D/ were in excellent agreement with theta values determined from elastic constant measurements. The heat capacity of a series of lutetium-hydrogen solid solution alloys was determined and results showed an increase in ..gamma.. from 8.2 to about 11.3 mJ/g-atom-K/sup 2/ for hydrogen content increasing from zero to about one atomic percent. Above one percent hydrogen ..g… more
Date: October 1, 1977
Creator: Thome, D. K.
Partner: UNT Libraries Government Documents Department
open access

Polariton effects in naphthalene crystals

Description: The experimental verification of the two-step nature of energy dissipation of photon energy by a crystal is the subject of this dissertation. The ..cap alpha..(O,O) Davydov component of the lowest energy singlet transition in pure strain-free napthalene single crystals is shown to exhibit an increase in absorption with increasing temperature, due to an increase in polariton damping via polariton-phonon scattering processes. (GHT)
Date: October 1, 1977
Creator: Robinette, S. L.
Partner: UNT Libraries Government Documents Department
open access

Synthesis and characterization of an N-(2-hydroxyethyl)-ethylenediaminetriacetic acid resin

Description: A chelating ion-exchange resin with N-(2-hydroxyethyl)ethylene-diaminetriacetic acid (HEDTA) used as the ligand chemically bonded to XAD-4 by an ester linkage, HEDTA-4, was synthesized. It is stable under normal experimental conditions with the liquid chromatograph. The structure of the resin was confirmed by an infrared spectrum, and by potentiometric titrations. The capacity of the resin was also obtained by potentiometric titration and by a nitrogen analysis. The resin was used to pack a col… more
Date: October 1, 1977
Creator: Lai, Y. F.
Partner: UNT Libraries Government Documents Department
open access

Electron microscopy of hydrocarbon production in parthenium argentatum (guayule)

Description: The electron microscope was used to study the biological processes involved in hydrocarbon production. The little desert shrub Guayule (Parthenium argentatum) was selected for study. This shrub can produce hydrocarbons (rubber) in concentrations up to 1/4 of its dry weight. It grows on semi-arid land and has been extensively studied. The potential of Guayule is described in detail. Results of an investigation into the morphology of Guayule at the electron microscope level are given. Experiments… more
Date: November 1, 1977
Creator: Bauer, T.E.
Partner: UNT Libraries Government Documents Department
open access

Stress induced reorientation of vanadium hydride

Description: The critical stress for the reorientation of vanadium hydride was determined for the temperature range 180/sup 0/ to 280/sup 0/K using flat tensile samples containing 50 to 500 ppM hydrogen by weight. The critical stress was observed to vary from a half to a third of the macroscopic yield stress of pure vanadium over the temperature range. The vanadium hydride could not be stress induced to precipitate above its stress-free precipitation temperature by uniaxial tensile stresses or triaxial tens… more
Date: October 1, 1977
Creator: Beardsley, M. B.
Partner: UNT Libraries Government Documents Department
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Electromigration of hydrogen and deuterium in vanadium, niobium, and tantalum

Description: The electric mobility and effective valence of hydrogen and deuterium in vanadium, niobium, tantalum and three niobium-tantalum alloys were measured. A resistance technique was used to directly determine the electric mobility of hydrogen and deuterium at 30/sup 0/C while a steady-state method was used to measure the effective valence. The use of mass spectrographic techniques on a single specimen which contained both hydrogen and deuterium greatly increased the precision with which the isotope … more
Date: October 1, 1977
Creator: Jensen, C. L.
Partner: UNT Libraries Government Documents Department
open access

Use of a semiconductor laser in infrared spectroscopy

Description: A semiconductor laser has certain properties which makes its use desirable as a continuous monitor of atmospheric pollutants. Its energy output is concentrated in widely separated energy modes of very narrow bandwidths (less than 10/sup -5/ cm/sup -1/) which can be centered on one infrared absorption line of one gas. This makes the laser quite selective. The energy in each mode is typically greater than 200 ..mu.. watts, and, because of the laser's small size, its light energy can be colli… more
Date: December 1, 1977
Creator: Morris, R. N.
Partner: UNT Libraries Government Documents Department
open access

Inductively coupled plasma--atomic emission spectrometry: trace elements in oil matrices

Description: The simultaneous determination of up to 20 trace elements in various oil matrices by inductively coupled plasma-atomic emission spectrometry is reported. The oil matrices investigated were lubricating oils (for wear metals), fuel oil, centrifuged coal liquefaction product, crude soybean oil, and commercial edible oils. The samples were diluted with appropriate organic solvents and injected into the plasma as an aerosol generated by a pneumatic nebulization technique. Detection limits of the 28 … more
Date: December 1, 1977
Creator: Peterson, C. A.
Partner: UNT Libraries Government Documents Department
open access

Analytical applications of resins containing amide and polyamine functional groups

Description: A dibutyl amide resin is used for the separation of uranium(VI), thorium(IV), and zirconium(IV) from each other and several other metal ions. Uranium(VI) and thorium(IV) are determined in the presence of large excesses of foreign metal ions and anions. A practical application of the amide resin is studied by determining uranium in low grade uranium ores. The amide resin is also used for the selective concentration of gold(III) from sea water.
Date: December 1, 1977
Creator: Orf, G. M.
Partner: UNT Libraries Government Documents Department
open access

Dislocation morphology in deformed and irradiated niobium. [Neutron irradiation]

Description: Niobium foils of moderate purity were examined for the morphology of dislocations or defect clusters in the deformed or neutron-irradiated state by transmission electron microscopy. New evidence has been found for the dissociation of screw dislocations into partials on the (211) slip plane according to the Crussard mechanism: (a/2) (111) ..-->.. (a/3) (111) + (a/6) (111).
Date: June 1, 1977
Creator: Chang, C. P.
Partner: UNT Libraries Government Documents Department
open access

Lanthanide extraction with 2,5-dimethyl-2-hydroxyhexanoic acid

Description: This research is concerned with the solvent extraction into chloroform of the lanthanides, using 2,5-dimethyl-2-hydroxyhexanoic acid (DMHHA). This acid is the first ..cap alpha..-hydroxy aliphatic acid to be studied as an extracting agent for the lanthanides. The chloroform-water DMHHA partition constant was determined to be 1.0 (at 0.1 M ionic strength and 25/sup 0/C). The acid dimerizes in chloroform with a constant of 56. The light lanthanides can be extracted into chloroform by forming comp… more
Date: December 1, 1977
Creator: Miller, J. H.
Partner: UNT Libraries Government Documents Department
open access

Investigation of high energy runaway electron confinement in the Oak Ridge tokamak

Description: High energy runaway electrons in the Oak Ridge tokamak ORMAK have been investigated through measurement of the bremsstrahlung produced when these electrons leave the discharge and strike the limiting aperture of the torus. The experimental results have been interpreted in terms of a classical single-particle model appropriate for collisionless particles in a tokamak, and it has been found that most of the confinement properties of high energy runaways in ORMAK can be understood on this basis. A… more
Date: November 1, 1977
Creator: Zweben, S. J.
Partner: UNT Libraries Government Documents Department
open access

Heated uranium tetrafluoride target system to release non-rare gas fission products for the TRISTAN isotope separator. [As replacement for uranyl stearate]

Description: Off-line experiments indicated that fluorides of As, Se, Br, Kr, Zr, Nb, Mo, Tc, Ru, Sb, Te, I and Xe could be volatilized, but except for Br, Kr, I and Xe, none of these elements were observed after mass separation in the on-line experiments. The results of the on-line experiments indicated a very low level of hydride contamination at ambient temperature and consequently, uranium tetrafluoride replaced uranyl stearate as the primary gaseous fission product target. Possible reasons for the fail… more
Date: October 1, 1977
Creator: Gill, R. L.
Partner: UNT Libraries Government Documents Department
open access

The Influence of the Emblem on Spenser's Presentation of Allegorical Figures in The Faerie Queene

Description: Critics frequently, sometimes irresponsibly, label Spenser's poetry "emblematic" because of the appearance of either striking allegorical figures or moral assertions. This thesis establishes a standard for the application of the term "emblematic": first, by defining those elements which characterize emblems; second, by examining the emblem's cultural milieu; and third, by analyzing the "emblem patterns" that appear in The Faerie Queene. The study concludes that these "emblem patterns" transfor… more
Date: December 1977
Creator: Howard, Patricia W.
Partner: UNT Libraries
open access

The Suffragette Movement in Great Britain: A Study of the Factors Influencing the Strategy Choices of the Women's Social and Political Union, 1903-1918

Description: This thesis challenges the conventional wisdom that the W.S.P.U.'s strategy choices were unimportant in regard to winning women's suffrage. It confirms the hypothesis that the long-range strategy of the W.S.P.U. was to escalate coercion until the Government exhausted its powers of opposition and conceded, but to interrupt this strategy whenever favorable bargaining opportunities with the Government and third parties developed. In addition to filling an apparent research gap by systematically an… more
Date: December 1977
Creator: Lance, Derril Keith Curry
Partner: UNT Libraries
open access

The Effect of Busing on School Success of Minority Students in Urban Elementary Schools

Description: The purposes of this study were (1) to determine whether the mean gains on achievement scores in reading and mathematics for bused students in grades four and five after one year in integrated schools is greater than the mean gain in reading and mathematics achievement scores for similar non-bused students in segregated schools; (2) to determine whether school attendance for bused students is greater than attendance for similar non-bused students; and (3) to determine if attitude toward school,… more
Date: December 1977
Creator: Thomas, Kenneth D., 1939-
Partner: UNT Libraries
open access

The Development of Business Week Magazine

Description: This study explains the development of Business Week from its beginning in 1929 to 1975 and its changes over this forty-five-year period in format, content and editors. The study shows how Business Week developed, reflecting the history of American business, industry, labor, and the rise of the consumer, and recorded the growth and changes in the magazine's format, news departments, services and features, and staff. The study traces the development of Business Week in three periods, 1929, 1930-… more
Date: December 1977
Creator: Stockard, Krista Lynn
Partner: UNT Libraries
open access

Directorial Roles: a Study in Theatrical Communication

Description: This study examines the process of theatrical direction as a communication system. Its components are described in terms of their function as elements of a communication process. The communication activities within the theatrical process are analyzed by means of four categories of theatrical communication networks: conceptual, aesthetic, observational, and social. Theories of communication have been surveyed and then applied to the theatrical process. Particular attention is paid to role functi… more
Date: August 1977
Creator: DeVore, Brenda K.
Partner: UNT Libraries
open access

Association of Masculinity Scores with Five Measures of Adjustment at the Gainesville State School for Delinquent Youths

Description: The problem with which this investigation is concerned is that of determining the effects of masculinity on achievement. The California Psychological Inventory Fe Scale is used to measure masculinity. Results from this scale are compared with results on five measures of adjustment; Wechsler I.Q. scores, the Gainesville State School point system, and three scales constructed for this study to measure aspects of adjustment. The findings of this study fail to support the proposition that masculini… more
Date: May 1977
Creator: Kurtz, Howard A.
Partner: UNT Libraries
open access

Some Aspects of the National Education Association's Emphases on Instruction

Description: The purpose of this study was to identify and describe the purposes, plans, activities, and programs of the National Education Association that focused upon instruction. To carry out this purpose, guideline questions were developed. Answers to the questions were sought through leads obtained from a study of the volumes of Addresses and Proceedings for the years since the first NTA meeting in 1857 through the 1976 NEA Convention and editions of the NEA Handbook from the first in 1945 through the… more
Date: December 1977
Creator: Kemp, Doris Ruth
Partner: UNT Libraries
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Relationship of Female Acceptance or Rejection of Double Sex Standards to Selected Variables

Description: The problem of this study was to determine the relationship of double sex standards to achievement and to selected personality variables of female college students. The following hypotheses were formulated: Hypothesis 1 Women with low acceptance of double sex standards will be found to have a higher grade-point average than will women with high acceptance of double sex standards. Hypothesis 2 Women with low acceptance of double sex standards will have greater internal locus of control than will… more
Date: December 1977
Creator: Williams, Bradley Frank
Partner: UNT Libraries
open access

Principal's Role Behavior and Administrative Performance as Perceived by Selected Teachers

Description: This study was based on the assumption that classroom teachers were in an advantageous position to judge their principal's role behavior and their principal's administrative performance. The problem of this study was to determine whether or not significant differences existed between teachers' perceptions of their principal's role behavior; whether or not significant differences existed between teachers' perceptions of their principal's administrative performance; and whether or not there was a… more
Date: December 1977
Creator: Nakornsri, Tinnakorn
Partner: UNT Libraries
open access

The Virtuoso Clarinet: Arrangements from Nineteenth-Century Italian Opera, A Lecture Recital, Together with Three Recitals of Selected Works of B. Bartók, J. Brahms, E. Carter, B. Crusell, M. Clyne, C. Debussy, P. Hindemith, R. Schumann, G. Tartini, R. Vaughan Williams, and C. Whittenberg

Description: The lecture recital was given on July 25, 1977. Transcriptions and arrangements for clarinet and piano of nineteenth-century Italian opera were popular during the virtuoso wind era and are representative of an important phase in the history of clarinet playing. Arias of Rossini and Verdi and a fantasia based on Rigoletto were performed during the lecture recital. In addition to the lecture recital, three other public recitals were performed, including solo compositions for clarinet and chamber … more
Date: December 1977
Creator: Petersen, John William
Partner: UNT Libraries
open access

An Appeal to Reason: Daniel Webster, Henry Clay, and Whig Presidential Politics, 1836-1848

Description: American politics from 1832 to 1848 underwent a profound transformation. Whereas in the early years of the republic politics had been based on deference and elitism, by the early 1830's a definite change in the political arena had occurred. With the coming of the "Age of Jackson, " the political rules and styles of the older era began to change. The politics of deference began to give way to the politics of "availability." Because this study is a discussion, examination, and analysis of Webster… more
Date: December 1977
Creator: Teague, William Joseph, 1941-
Partner: UNT Libraries
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