4,645 Matching Results

Search Results

Two Tumblers

Description: Two hand-blown glass tumblers are vertically decorated with blue and brown colors.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1957
Creator: Vignelli, Massimo
Partner: UNT College of Visual Arts + Design

Factum II

Description: Mixed media collage painting with red, blue, dark green, gold, medium gray and brown painted shapes and dripping rendered stokes. Newspaper and calendar tear outs affixed throughout surface. The letter "T" painted on bottom right corner of painting.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1957~
Creator: Rauschenberg, Robert
Partner: UNT College of Visual Arts + Design

Ladybug

Description: This abstract painting is painted in hues of red, blue, green and yellow on a white background.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1957
Creator: Mitchell, Joan
Partner: UNT College of Visual Arts + Design

TRANSFORMATIONS IN URANIUM-BASE ALLOYS. Summary Report for December 14, 1955-March 31, 1957

Description: Transformation kinetics of binary U -Nb and ternary U-Nb-base alloys were investigated. Additions included zirconium, chromium, titanium, silicon, nickel, nnthenium, and vanadium. Encapsulated samples were given a homogenizstion anneal at 1000 or 1100/sup o/C, water-quenched from 906/sup o/C to retain the phase, and reheated to temperatures between 360 and 600/sup o/C. The metastability of the phase was examined by metallographic, hardness, resistometric, dilatometric and x-ray-diffraction techniques. The U -Nb system is characterized by a monotectoid decomposition of the high temperature allotrope at about 645/sup o/C to form alpha and /sub 2/, a niobium-rich cubic structure. Decomposition in U-Nb and in most U-Nb-X alloys occurred by a continuous precipithtion of alpha from the body-centered cubic phase with a resultant enrichment in niobium of until the equilibrium /sub 2/ composition was reached. In the U-Nb-Ti and U-Nb-V systems, alpha and /sub 2/ were coprecipitated. Annealing at 550 and 600/sup o/C produced decomposition products which, in most materials, originated at the grain boundaries; a fine precipitate which initiated throughout the matrix was observed at lower annealing temperatures. Increasing the niobium content resulted in greatly increased stability. The following elements added to a U-Nb base were found to retard transformation of the phase: zirconium, chromium, ruthenium, and vanadium. Additions of titanium, silicon, and nickel produced alloys which were less stable than the U-Nb base to which they were added. Cold-working a U-7 wt. % Nb-2 wt. % Zr composition caused a more rapid transformation upon annealing at 360 and 450/ sup o/C, and the resulting microstructures were different. Continuous cooling transformation studies were conducted on U-10 wt. % Nb materials, solution annealed at 700 and 950/sup 0/C, and cooled at various linear rates to temperatures between 300 and 600/sup o/C. Cooling rates between 8.5 and 14.5/sup o/C per minute were required to prevent transformation ...
Date: June 28, 1957
Creator: Parry, S. J. S.; Holtz, F. C. & Van Thyne, R. J.
Partner: UNT Libraries Government Documents Department

The Call Number, Volume 18, Number 5, February 1957

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State College, Denton, Texas" (p. 18). The periodical contains news items; announcements; a list of "Notable Books of 1956"; the Library Service Directory; and personals concerning students, faculty, staff, and alumni.
Date: 1957
Creator: North Texas State College. Library Service Department.
Partner: UNT College of Information

The Call Number, Volume 18, Number 6, March 1957

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State College, Denton, Texas" (p. 24). The periodical contains news items; announcements; a listing of award winning books, "Distinguished Children's Books of 1956", and "Interesting Adult Books for Young People"; and personals concerning students, faculty, staff, and alumni.
Date: 1957
Creator: North Texas State College. Library Service Department.
Partner: UNT College of Information

The Call Number, Volume 18, Number 7, April 1957

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State College, Denton, Texas" (p. 31). The periodical contains news items; announcements; a list of Summer courses; a poem about Denton's Centennial; and personals concerning students, faculty, staff, and alumni.
Date: 1957
Creator: North Texas State College. Library Service Department.
Partner: UNT College of Information

The Call Number, Volume 18, Numbers 9-10, Summer 1957

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State College, Denton, Texas" (p. 38). The periodical contains news items; announcements; a schedule of Fall courses; the Library Service Department Directory; an index to Volume 18; and personals concerning students, faculty, staff, and alumni.
Date: 1957
Creator: North Texas State College. Library Service Department.
Partner: UNT College of Information

The Call Number, Volume 19, Number 1, October 1957

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State College, Denton, Texas" (p. 2). The periodical contains news items; announcements; a schedule of Fall courses; the Library Service Department Student Directory; and personals concerning students, faculty, staff, and alumni.
Date: 1957
Creator: North Texas State College. Library Service Department.
Partner: UNT College of Information

The Call Number, Volume 19, Number 2, November 1957

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State College, Denton, Texas" (p. 8). The periodical contains news items; announcements; a schedule of Fall courses; an alumni list; and personals concerning students, faculty, staff, and alumni.
Date: 1957
Creator: North Texas State College. Library Service Department.
Partner: UNT College of Information

The Call Number, Volume 19, Number 3, December 1957

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State College, Denton, Texas" (p. 12). The periodical contains news items; announcements; an alumni list; and personals concerning students, faculty, staff, and alumni.
Date: 1957
Creator: North Texas State College. Library Service Department.
Partner: UNT College of Information

The Call Number, Volume 18, Number 4, January 1957

Description: Newsletter "issued monthly during the regular session by the students in the Department of Library Service, North Texas State College, Denton, Texas" (p. 15). The periodical contains news items; announcements; a schedule of Spring courses; and personals concerning students, faculty, staff, and alumni.
Date: 1957
Creator: North Texas State College. Library Service Department.
Partner: UNT College of Information

URANIUM RECOVERY, URANIUM GEOCHEMISTRY, THERMOLUMINESCENCE AND RELATED STUDIES. Final Report

Description: The recovery of urantum at the mine with portable equipment was shown to be feasible, using a process which involves grinding the ore, leaching with nitric acid, extracting with tributyl phosphate and kerosene, and precipitation with ammonia gas. The system is more expensive than a stationary plant but couid be used in an emergency or in difficulty accessible locations. The distribution of uranium was studied in various geographical locations and in several different materials including limestones, granites, clays, rivers and underground water, lignites, and volcanic ash and lavas. Geochemical studies, based on thermoluminescence, including stratigraphy, age determinations of limestones, and aragonite-calcite relations in calcium csrbonate are presented along with thermoluminescence studies of lithium fluoride, alkali halides, aluminum oxides, sulfates, and other inorganic salts and minerals. Radiation damage to lithium fluoride and metamixed minerals was studied, and apparatus was developed for measuring thermoluminescence of crystals exposed to gamma radiation, scintillameters for measuring alpha particle activity in materials containing a trace of uranium, and an analytical method for determining less than 1 part per million uranium. (J.R.D.)
Date: November 1, 1957
Creator: Daniels, F.
Partner: UNT Libraries Government Documents Department

Chemical Effects of Nuclear Transformations and Their Use in Making Labeled Compounds

Description: The chemical effects of nuclear transformations can be utilized to introduce the radioactive atoms produced into chemical species useful for tracer studies. Gas chromatography offers a means of separating the tagged compounds with high specific activity. A chromatographic apparatus for separating and identifying labeled compounds is described. Comparisons are made of this with other labeling techniques. (auth)
Date: January 1, 1957
Creator: Evans, J.B.; Quinlan, J.E. & Willard, J.E.
Partner: UNT Libraries Government Documents Department

POLARIZATION OF NEUTRONS SCATTERED BY INTERMEDIATE AND HEAVY NUCLEI

Description: Measurements of the polarization produced in the scattering of neutrons from heavy nuclei have been carried out at neutron energies of 380 and 980 kev. The Li/sup 7/(p,n)Be/sup 7/ reaction was used as a source of polarized neutrons. Right-left asymmetries in scattering of these neutrons from several elements ranging in atomic weight from 55 to 238 were measured at scattering angles of 55, 90, and 130 deg . With few exceptions the observed polarizations vary smoothly with atomic weight. Measured values of the polarization range from -0.11 to plus or minus 0.15 at 380 kev, and from --0.17 to plus or minus 0.20 at 980 kev. The results at 380-kev neutron energy are compared with values predicted by the complex square well potential modified by a surface spin-orbit interaction. Using several sets of well parameters it has not been possible to reproduce the experimental results. (auth)
Date: January 1, 1957
Creator: Clement, J.D.; Boreli, F.; Darden, S.E.; Haeberli, W. & Striebel, H.R.
Partner: UNT Libraries Government Documents Department

Research in Nuclear Physics. Progress Report No. 7

Description: A twenty-inch analyzing magnet has been completed except for the final trimming of the pole pieces. In onder to further examine the systematics in the angular distribution of elastically scattered alpha particles, the scattering of alpha particles from spectroscopically pure O/sup 16/ and hydrogen sulfide gases was studied. The change of the static quadrupole interaction in indium metal wth temperature was investigated. Results give a value Q = 10/sup -24/ cm/sup 2/. An experimental study of the betagamma directional correlations in the decay of Au/sup 198/, he long-range as well as the short-range stabilily of the fast coinci-dence scintillation spectrometer has been improved by building new 404A limiter circuits. The directional correlation of the 172 to 247 kev gamma cascade of Cd/sup 111/ was measured for gaseous InCl/sub 3/ sources as a function of the delay introduced into the channel accepting the first gamma ray of the cascade, and also as a function of the source temperature and pressure. This was done in an attempt to determine the nature of the interaction to which the Cd/sup 111/ nucleus is subjected when the source is in the gaseous state. In the decay of Cl/sup 40/ there is evidence for gamma rays of 0.55, 0.66, 0.96, 1.1, 4.2, and 6.3 Mev. A half life of 1.42 plus or minus 0.02 min was determined. Isomerism of In/sup 110/ and In/sup 112/ is being investigated. (For preceding period see COO-173.) (W.D.M.)
Date: June 15, 1957
Partner: UNT Libraries Government Documents Department

Liquid Metal Fuel Reactor Experiment (Phase 1C): Supplement to LMFRE Reference Design Report

Description: This supplement describes a number of modifications to the Liquid Metal Fuel Reactor Experiment (LMFRE), including (1) engineering design changes to achieve economies in the original reference design, and (2) a revised cost estimate that reapportions the various construction, research and development, and operating costs in accordance with procedures established by the Atomic Energy Commission.
Date: December 1957
Creator: Babcock & Wilcox Company
Partner: UNT Libraries Government Documents Department

Relationship between Aptitudes and Major Fields of Study

Description: As new measures of aptitude are devised, their implications to education are a fertile source for research. All facets of aptitudes as they relate to education are explored. This study is concerned with such exploration in that it investigates the relationships between aptitudes, as measured by the General Aptitude Test Battery and selected major fields of study at North Texas State College, Denton, Texas. The major fields of study selected for this research are Accounting, Business Education, Elementary Education, Industrial Arts and Marketing.
Date: January 1957
Creator: Nicksick, Theodore
Partner: UNT Libraries

A Plan of Christian Higher Education for Arkansas Baptists

Description: The primary problem in this study was to develop a comprehensive long-range plan for Arkansas Baptists to use as a guide in meeting their needs in the field of Christian higher education. These needs were viewed in two ways: 1. Need as related to the purposes and philosophy of Christian higher education of Southern Baptists; 2. Need as related to the number of persons to be served.
Date: June 1957
Creator: Kirkman, Ralph Everett
Partner: UNT Libraries