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[Page from The Art Digest]

Description: A page from The Art Digest about the 44th Annual Exhibition Denver Art Museum which mentions Compton's woodcarving, Juju.
Date: August 1, 1938
Partner: UNT Libraries Special Collections
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Networking with China

Description: This paper presents the history and current status Of computer networking between IHEP in Beijing, China and the rest of the world, starting with no links at the beginning of 1987 thru X.25 public networks and dial up links, to the installing, in March 1993, of one of the first dedicated 64 kbps satellite computer links between China and the outside world. In May 1994, IHEP became the first Chinese institution to have a fully operational world-wide Internet connection. Experience with this dedi… more
Date: April 1, 1944
Creator: Cottrell, R. L. A.; Granieri, C.; Fan, Lan; Xu, Rongsheng & Karita, Yukio
Partner: UNT Libraries Government Documents Department
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The Eight New Synthetic Elements

Description: In an early continuation of the investigation of the radioactive isotopes of element number 43 (technetium) Segre and Seaborg produced by the deuteron and neutron bombardment of molybdenum the isotope Tc{sup 99}, which they observed to decay by means of an isomeric transition with a half-life of 6.6 hours to a lower isomeric state with a half-life greater than 40 years. The upper isomeric state of this isotope was observed by Segre and C. S. Wu to be produced in the fission of uranium and more … more
Date: November 1, 1947
Creator: Seaborg, Glenn T.
Partner: UNT Libraries Government Documents Department
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The Eight New Synthetic Elements

Description: No Description Available.
Date: November 1, 1947
Creator: Seaborg, Glenn T.
Partner: UNT Libraries Government Documents Department
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Production of Mesons by the 184-inch Berkeley Cyclotron

Description: The authors have observed tracks which they believe to be due to mesons in photographic plates placed near a target bombarded by 380 Mev alpha particles. For a 10-minute exposure in the cyclotron, about 50 meson tracks are found along the 3-inch edge of a photographic plate. The mass has been determined by measuring the bending in the magnetic field and the range in emulsion. From the first 50 meson tracks measured they find a mass of 313 {+-} 16 electron masses. It is highly probable that thes… more
Date: January 1, 1948
Creator: Gardner, Eugene & Lattes, C. M. G.
Partner: UNT Libraries Government Documents Department
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Stars in Photographic Emulsions Initiated by Deuterons Part II. Theoretical

Description: The theory of high energy nuclear stars depends on a theory of nuclear transparency and on a theory of nuclear evaporation. The transparency can be computed on the basis of a model proposed by R. Serber as soon as the interactions between the nucleons and the incident particle are known. The evaporation can be computed on the basis of the statistical model of the nucleus as soon as the nuclear entropy and binding energies of the evaporated particles are known. The calculations have been formula… more
Date: January 1, 1948
Creator: Horning, Wendell & Baumhoff, L.
Partner: UNT Libraries Government Documents Department
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Health and safety conference

Description: This report provides a summary of the Health and Safety Conference held April 1948 at Chicago, Illinois. Representatives of Argonne National Laboratory, Rochester University, University of California Radiation Laboratory, Los Alamos Scientific Laboratory, New York Memorial Hospital, as well as a Canadian group and an United Kingdom group. Many topics were discussed some of which were plutonium in urine, toxicity of beryllium, and relative toxicity of radioelements.
Date: April 1, 1948
Creator: Rudolph, D.C.
Partner: UNT Libraries Government Documents Department
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Production of Mesons by the 184-inch Berkeley Cyclotron Part I. Experimental Arrangement

Description: The authors have observed traks which they believe to be due to mesons in photographic plates placed near a ta5rget bombarded by 380 Mev alpha particles. The plates used were Ilford Nuclear Research Plates, type C.2. the identification of the particles responsible for the tracks was first made on the basis of the appearance of the tracks; they show the same type of scattering and variation of grain density with residual range found in cosmic ray meson tracks and about two-thirds of them produce… more
Date: April 1, 1948
Creator: Gardner, Eugene & Lattes, C. M. G.
Partner: UNT Libraries Government Documents Department
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SPECIAL HEAT TRANSFER PHENOMENA FOR SUPERCRITICAL FLUIDS

Description: Present-day knowledge concerning the molecular structure of supercritical fluids is briefly reviewed. It is shown that liquid-like and gas-like phases may coexist at supercritical pressures, although they may not be in equllibrium with each other. it is postulated that on the basis of the coexistence of these two phases a "boiling-like" phenomenon may provide the mechanism of heat transfer to supercritical fluids at high heat fluxes and certain other conditions. An unusual mode of hea… more
Date: January 1, 1956
Creator: Goldmann, K
Partner: UNT Libraries Government Documents Department
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A Wide Bandwidth Telemetry System

Description: This paper will describe a telemetry system which has a bandwidth of 250 mgacples, the uses to which it has been put and possible future uses.
Date: August 1, 1956
Creator: Henry, David E & Glass, R. E.
Partner: UNT Libraries Government Documents Department
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Fused-Salt Heat Transfer

Description: This paper presents, in two parts, a general discussion of fused-salt heat transfer. The first part is a report on current experimental results with three new salts - an alkali metal-base fluoride, a zirconium-base fluoride, and an alkali metal nitrate-nitrite mixture known as 'HTS'. In the second part fused salts are compared with liquid metals on the basis of their heat transfer effectiveness as reactor coolants. An analysis is presented for a general solid fuel-element reactor whic… more
Date: November 1, 1956
Creator: Hoffman, Herbert W.
Partner: UNT Libraries Government Documents Department
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Ion exchange properties of hydrous oxides

Description: The large class of amorphous insoluble hydrous oxides has interesting ion exchange properties. These materials have high capacities and suitable exchange rates and may therefore be used in packed columns in typical chromatographic (ion exchange) manner. Hydrous oxides may exhibit either cation exchange or anion exchange properties, or both. The type of adsorption depends on the element on which the oxide is based, on the acidity of the medium and, to some extent, on the ion adsorbed. Though som… more
Date: June 1, 1958
Creator: Kraus, K. A.; Phillips, H. O.; Carlson, T. A. & Johnson, J. S.
Partner: UNT Libraries Government Documents Department
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Pyrometallurgical Purification of Plutonium Reactor Fuels

Description: Pyrometallurgical methods studied are liquation, self-drossing and filtration, slagging by the addition of oxide, carbide, or halide, liquid metal extraction, complete conversion to halide, followed by filtration and selective reduction of the plutonium, and electrorefininng. Experimental techniques and results are presented for each method. (auth)
Date: June 1, 1958
Creator: Leary, J.A.; Benz, R.; Bowersox, D.F.; Bjorklund, C.W.; Johnson, K.W.R.; Maraman, W.J. et al.
Partner: UNT Libraries Government Documents Department
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Radiochemical Studies of the Fast Neutron Fission of U$sup 235$ and U$sup 238$

Description: Radiochemical studies of the fast neutron fission of U/sup 235/ and U/sup 238/ have been made in the mass region beyond mass 143 with two neutron energy distributions. These studies provide measurements of the relative fission yields of several chains in the rare earth group in fission of U/sup 235/ and U/sup 238/ caused by neutrons with an energy distribution very close to unmoderated fission neutrons and by neutrons with an energy distribution peaked at 8 Mev. The increased contribution of ve… more
Date: June 1, 1958
Creator: Bunney, L. R.; Scadden, E. M.; Abriam, J. O. & Ballou, N. E.
Partner: UNT Libraries Government Documents Department
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TEST OF A DIRECT CYCLE NUCLEAR TURBOJET SYSTEM

Description: This paper discusses research and development effort on a direct-cycle air-cooled nuclear reactor and propulsion equipment. The reactor experiment was designed, constructed, and tested during the period 1953 to 1956 to prove the feasibility of operating a turbojet engine from the heat produced by an air-cooled reactor. A description is given of the reactor, turbomachinery, shielding, control system, and associated equipment used in the first propulsion system test which was run in 1956. The sys… more
Date: June 1, 1958
Creator: Shoults, D. R.
Partner: UNT Libraries Government Documents Department
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THE PHOTOVOLTAIC EFFECT AND PHOTOCONDUCTIVITY IN LAMINATED ORGANICSYSTEMS

Description: As a result of a wide variety of studies on photosynthesis in living plants and plant fragments, together with the development of photosensitive, photovoltaic junctions in inorganic crystals and the discovery and exploration of semiconduction in organic molecular substances, a suggestion has been made that the primary quantum conversion process in photosynthetic tissues involves the creation and separation of charge to opposite sides of an asymmetrically-constructed lamina, followed by the trap… more
Date: September 1, 1958
Creator: Kearns, David & Calvin, Melvin
Partner: UNT Libraries Government Documents Department
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Determination of Hafnium and Rare Earths in Aluminum Alloys

Description: Procedures are described for both a titrimetric and a gravimetric determination of hafnium in aluminum -hafnium alloys. The gravimetric procedure is used if the hafnium is to be recovered; otherwise, the titrimetric procedure is preferred. The sample is dissolved in aqua regia. Any undissolved hafnium is taken into solution via pyrosulfate fusion. The hafnium is separated from the aluminum and contaminants in the aluminum by precipitation as the mandelate. In the gravimetric procedure the hafni… more
Date: January 1, 1959
Creator: Sikes, J. H.; Wade, M. A. & Yamamura, S. S.
Partner: UNT Libraries Government Documents Department
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The Plutonium-Copper Phase Diagram

Description: The constitution of the plutonium-copper binary alloy as determined by differential thermal analysis is presented. The system is characterized by two congruent melting compounds, PuCu2 (m.p. 865 degrees C.) and Pu4Cu17 (m.p. 954 degrees C.); two incongruent melting compounds, PuCu4 (m.p. 906 degrees C.) and Pu2Cu11 (m.p. 926 degrees C.); three eutectics, 96 atom per cent copper (m.p. 626 degrees), 70.5 atom per cent copper (m.p. 849 degrees C.), and 91 atom per cent copper (m.p. 881 degrees C.)… more
Date: January 1, 1960
Creator: Rhinehammer, T. B.; Etter, D. E. & Jones, L. V.
Partner: UNT Libraries Government Documents Department
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The Viscosity of a Liquid Plutonium-Iron Eutectic Alloy

Description: The viscosity of a liquid plutonium-iron eutectic alloy, which contains 9.5 atom per cent iron and melts at 411 degrees C, was determined up to 808 degrees C at Mound Laboratory by an oscillating cup viscosimeter. This type of apparatus employed a right-circular cylindrical cup containing the liquid under investigation attached to a torsion fiber. The dampening effect of the liquid upon the normal oscillations of the pendululm was a function of the viscosity of the liquid. The amplitudes of the… more
Date: April 1, 1960
Creator: Wittenberg, L. J., Jones, L. V., Ofte, D.
Partner: UNT Libraries Government Documents Department
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