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[1952 Dodge Coronet at Ryan Motor Co.]

Description: Photograph of the 1952 Dodge Coronet with two doors parked at a Ryan Motor Co. location. There is a sign that reads "The 1952 Plymouth Tone-Tailored Interiors." There is another automobile visible to the left of the image. A desk, a wheelchair, glass windows into office spaces, doors, and a plant can be seen in the background.
Date: March 31, 1952
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Absorption Spectra of Aromatic Disulfides

Description: The effect of solvents and temperature on the optical absorption spectrum of a number of substituted aromatic disulfides is reported. The problems offered by the disulfide link and the exchange reactions between disulfides, and between disulfides and thiols, are receiving increasing attention. Recently the base-catalyzed exchange between various alkyl disulfides and the corresponding thiols was studied by means of a radioactive-tracer technique. Our initial purpose was to extend these investigations to a large number of compounds in a variety of experimental conditions using a spectrophotometric technique that, if applicable, would have been incomparably faster.
Date: October 31, 1956
Creator: Fava, Antonio & Calvin, Melvin
Partner: UNT Libraries Government Documents Department
open access

Absorption Spectra of Plutonium and Impurity Ions in Nitric Acid Solution

Description: The absorption spectra for Pu(III), (IV), (VI), and the red Pu(IV)- peroxy complex were determined in HNO/sub 3/ solution. Extinction coefficients for the above species of Pu were measured. Temperature has little effect on the spectra, but variation of acidity causes shifting of absorption peaks and some changes in the extinction coefficients. The absorption spectra and extinction coefficients in the region 390 to 1200 m mu were measured for chromic, nickelous, manganous, calcium, lanthanum, aluminum, ferrous. ferric, and permanganate ions in HNO/sub 3/ solutions. In addition, the effects of nitrite, oxalic acid, sulfamic acid, hydrogen peroxide, and various HNO/sub 3/ concentrations on the extinction coefficients of some of these ions were determined. The chromic, nickelous, ferrous, and permanganate ions, and ferric ion with oxalic acid, have sufficiently high extinction coefficients to cause inaccuracies in valence determinations of Pu in solutions containing high concentrations of these ions, unless corrections are made. (auth)
Date: July 31, 1956
Creator: Myers, M. N.
Partner: UNT Libraries Government Documents Department
open access

The Activity of the Fission Products of U$sup 23$$sup 5$

Description: Energy distributions and energy release rates of fission product gammas and energy release rates of the fission product betas are presented in tabular and graphical form, and the computation methods are outlined in detail. The data given for beta and gamma decay rates pertain directly to the thermal fission of U/ sup 235/. The possible effects of neutron energy spectra, other than thermal, and neutron flux level upon the fission product decay rates were examined, and the results are reported. The importance of bremsstrahlung caused by beta particles from fission products and the effect of photoneutron production due to the photonuclear reactions of the fission product gammas with D or Re were studied. Methods of evaluating these effects in the reactor are briefly described. (J.E.D.)
Date: October 31, 1958
Creator: Knabe, W. E. & Putnam, G. E.
Partner: UNT Libraries Government Documents Department
open access

Advances in the Physical Metallurgy of Uranium and its Alloys

Description: A general survey is presented of information in the uranium alloy field. Emphasis is centered on alpha uranium-rich alloys of special interest as uranium- base fuel element materials. The systems treated include uranium-molybdenum, uranium-silicon, uraniumzirconium, uranium-niobium, and uranium-zirconiumniobium (high uranium compositions). The uraniumfissium alloys are discussed in relation to their projected applications as fast reactor fuels. Equilibrium diagrams, transformation kinetics, and other pertinent data are presented for the uranium plus fissium'' element systems, e.g., uranium-ruthenium, uranium-rhodium, uraninum-palladium, and uraniummolybdenum-ruthenium. The properties covered include constitution phase diagrams, metallographic structure, physical and mechanicaly properties, transformation kinetics, crystallographic structure, thermal cycling, ad irradiation stability (where pertinent). Correlations between microstructure, heat treatment, and dimensional stability are emphasized, with particular reference to the U-2 wt.% Zr, U-5 wt.% Zr, and 1 1/2 wt.% Nb alloys. A discussion of the role of alloying and heattreatment in improving the dimensionaly stability and corrosion resistance of uraaium is presented, and an evaluation is made of the present status in attaining these objectives. (auth)
Date: October 31, 1958
Creator: Chiswik, H. H.; Dwight, A. E.; Lloyd, L. T.; Nevitt, M. V. & Zegler, S. T.
Partner: UNT Libraries Government Documents Department

[Advertising Star-Telegram slides]

Description: Photograph of a slide with messages that reads, "Total circulation over 225,000 Fort Worth Star-Telegram," and "Serving 138 Texas counties." In the center to the right, there is a Texas state logo for the Texas Ranch and Farm. The slide is taped to a light-colored wall.
Date: July 31, 1952
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[Advertising Star Telegrams Farm Journal]

Description: Photograph of a slide that reads "Star-Telegram's monthly Farm Magazine largest circulation in Texas." The illustration on the left showcase the cover of a book that reads "Fort Worth Star-Telegram. Delivered to 100,000 Ranchers and Farmers. 1st Sunday each month." Included, there is a logo for the Texas Ranch and Farm.
Date: July 31, 1952
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[Alumni Officers, 1955]

Description: Photograph of the 1955, alumni officers consisting of four individuals, a woman and three men posing inside a room. One man and the woman are sitting on chairs next to a table with a lamp on it, while the others stand behind them.
Date: March 31, 1955
Partner: UNT Libraries Special Collections
open access

Annual Progress Report Covering Researches During the Period June 1, 1956 to May 31, 1957. Report No. 45

Description: >Results of solvent extraction studies on Au, Ga, Nb, and Ta are given. Data on the dependence of B/sub A/, epsilon /sub A/ and S/sub A/ on A and on nucleon shells in beta decay are summarized. Rates of hydrolysis of benzyl and benzhydryl halides and methyl iodide in H/sub 2/O and D/sub 2/O are tabulated. Values for the solvolysis of triphenplmethyl fluoride, the decarboxylation rates of beta -keto acids, and the decomposition of single chlorosulfites are included. Experiments were conducted to examine the velocity spectrum of cosmic ray mu mesons at sea level, the incidence of air showers and their direction of arrival at sites in Bolivia and India, short period fluctuations in cosmic-ray intensity, the mu -meson component of large air showers, polarization of cosmic-ray mu mesons, and other related measurements. Photographic emulsion research continued on the dynamics of K/sup +/ scattering and on a search for the Pais-Piccioni effects. The linear accelerator work centered about a study of gamma -ray induced neutron spectra of Bi, Pb, Au, and Ta. The Rockefeller Van de Graaff Generator work was concerned with the measurement of g-factors of low-lying excited states of Sm, Nd, and Gd. Nuclear energy level studies using the ONR Van de Graaff Generator were concentrated largely on the nuclei between mass numbers 40 and 70. Efforts were directed award a determination of level order and, where possible, of spins and parities of states. A number of angular distribution studies for deuterium stripping reactions were carried out. Research with the M.I.T. cyclotron involved a continuation of the angular distribution studies of elastically scattered 7.5-Mev protons, the measurement or polarization of such elastically scattered protons; 30-Mev alpha particle scattering, alpha ment of apparatus for time-of-flight neutron energy measurements. (For preceding period see AECU-3377.) (M.H.R.)
Date: October 31, 1958
Partner: UNT Libraries Government Documents Department
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