An Analytical Investigation of the Effect of the Rate of Increase of Turbulent Kinetic Energy in the Stream Direction on the Development of Turbulent Boundary Layers in Adverse Pressure Gradients (open access)

An Analytical Investigation of the Effect of the Rate of Increase of Turbulent Kinetic Energy in the Stream Direction on the Development of Turbulent Boundary Layers in Adverse Pressure Gradients

"The purpose of this paper is to provide a derivation of the general integral form of the boundary equation without neglecting the Reynolds normal-stress term. Two special cases of this equation are given explicitly" (p. 2).
Date: November 1953
Creator: Rashis, Bernard
System: The UNT Digital Library
Angular Distribution of 30.6 Mev Protons Elastically Scattered by Be, C, and Al (open access)

Angular Distribution of 30.6 Mev Protons Elastically Scattered by Be, C, and Al

The motivation for the measurement of the angular distribution of elastic scattering of medium energy protons and neutrons has been clearly presented by others. They have also listed the results obtained prior to their experiments at 31.5 Mev. This is a report on some results obtained with 30.6 Mev protons scattered from Be, C, and Al.
Date: November 1953
Creator: Wright, Byron T.
System: The UNT Digital Library
Development drilling in the Ellison-Burro claims area, Slick Rock district, San Miguel County, Colorado (open access)

Development drilling in the Ellison-Burro claims area, Slick Rock district, San Miguel County, Colorado

A report regarding development drilling in the Ellison-Burro claims area, Slick Rock District, San Miguel County, Colorado
Date: November 1953
Creator: Emerick, W. L. & Gualtieri, J. L.
System: The UNT Digital Library
Effect of Annealing Practice on the the Hydrogen Content of Uranium (open access)

Effect of Annealing Practice on the the Hydrogen Content of Uranium

It was found that hydrogen is introduced into uranium during process-annealing in a fused salt bath. The increased hydrogen content reduces the tensile elongation and general formability of the metal. The partial removal could be affected by annealing in argon, helium, or nitrogen, and better by annealing in high vacuum at temperatures above 450°C. The effect of the hydrogen content on the tensile properties was confirmed by annealing in hydrogen. Tensile properties, the hydrogen content, and certain X-ray results after each annealing treatment are presented and briefly discussed
Date: November 1953
Creator: Waber, James T. (James Thomas), 1920-.
System: The UNT Digital Library
Geophysical Investigations of the Happy Jack Mine Area, White Canyon District, San Juan County, Utah (open access)

Geophysical Investigations of the Happy Jack Mine Area, White Canyon District, San Juan County, Utah

From abstract: These results demonstrate that the self-potential method is not satisfactory for locating and delineating sulfide-bearing uranium ore bodies under conditions similar to those in the Happy Jack area.
Date: November 1953
Creator: Jackson, W. H.
System: The UNT Digital Library
Instability of a Pinched Fluid with a Longitudinal Magnetic Field (open access)

Instability of a Pinched Fluid with a Longitudinal Magnetic Field

The stability of a pinched plasma equilibrium with a longitudinal magnetic field superimposed on the characteristic azimuthal magnetic field of the pinch current is studied theoretically. The linearized solutions are developed as helical perturbations of the plasma surface, and the behavior of these is given for the different cases of uniform longitudinal, longitudinal field zero inside the plasma, and for helices of the same and opposite sense to the helix which describes the total magnetic field. Very approximately, the conclusions are: that the longitudinal field has the effect of stabilizing short-wave perturbations, but that some long-wave perturbations remain unstable no matter how large the externally imposed longitudinal magnetic field.
Date: November 1953
Creator: Kruskal, Martin D. (Martin David), 1925-2006 & Tuck, J. L.
System: The UNT Digital Library
Morefield Pegmatite Mine, Amelia County, Virginia (open access)

Morefield Pegmatite Mine, Amelia County, Virginia

Report issued by the Bureau of Mines over the pegmatite mine in Amelia County, Virginia. The physicality, geology, and mining methods are presented. This report includes tables, maps, and illustrations.
Date: November 1953
Creator: Geehan, Robert W.
System: The UNT Digital Library
Neutron Capture Gamma Ray Spectra (open access)

Neutron Capture Gamma Ray Spectra

A series of measurements was performed to investigate the gamma ray spectra, in the region from about 100 kev to about 3 Mev, resulting from the capture of thermal neutrons in a number of elements. The purpose of the experiment was to supplement the high energy capture gamma ray data in order to remove some of the ambiguities from the proposed energy level schemes and to obtain information for the Shielding Group of Brookhaven National Laboratory on elements normally found in reactors.
Date: November 1, 1953
Creator: Reier, Melvin
System: The UNT Digital Library
Preliminary Report on Geophysical Investigations of the Deer Flat Area, White Canyon District, San Juan County, Utah (open access)

Preliminary Report on Geophysical Investigations of the Deer Flat Area, White Canyon District, San Juan County, Utah

From abstract: The purpose of the survey was twofold: to determine the trend of the Hideout Channel across Deer Flat and to delineate fractures cutting through the ore deposit at the Hideout mine.
Date: November 1953
Creator: Jackson, W. H.
System: The UNT Digital Library
Preliminary reserve statement 36, reserve blocks B and C, Spring Creek Mesa, Montrose County, Colorado (open access)

Preliminary reserve statement 36, reserve blocks B and C, Spring Creek Mesa, Montrose County, Colorado

A preliminary reserve statement regarding Reserve Blocks B and C of the Spring Creek Mesa, located in Montrose County, Colorado.
Date: November 1953
Creator: Roach, C. H.
System: The UNT Digital Library
Preliminary reserve statement 37, reserve block D, Spring Creek Mesa, Montrose County, Colorado (open access)

Preliminary reserve statement 37, reserve block D, Spring Creek Mesa, Montrose County, Colorado

A preliminary reserve statement regarding Reserve Block D of Spring Creek Mesa, located in Montrose County, Colorado. Concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.
Date: November 1953
Creator: Roach, C. H.
System: The UNT Digital Library
Preparation and Properties of the Eutectic Uranium-Chromium Alloy (open access)

Preparation and Properties of the Eutectic Uranium-Chromium Alloy

This report follows the study of the properties of eutectic uranium-chromium alloy which is of interest in the Dow-Detroit Edison power reactor. The reactor is described in this report, as well as the casting of alloy, shrinkage measurements during solidification, density measurements, microstructures and macrostructures, mechanical properties, and specific heat data.
Date: November 3, 1953
Creator: Saller, Henry A.; Rough, Frank A. & Dickerson, Ronald F.
System: The UNT Digital Library
Removal of Chloride From Congo Precipitates (open access)

Removal of Chloride From Congo Precipitates

Uranium precipitates obtained from Congo leach liquors by an ion exchange process contained more than 0.1 percent chloride. Attempts were made to reduce the chloride content of typical precipitates by calcination of dried precipitate, releaching of dried precipitate with water, and washing of wet precipitate with water. Washing of wet precipitate with an aqueous solution of 0.25 percent Na2SO4, to prevent peptization, provided a simple solution to the problem.
Date: November 3, 1953
Creator: Viklund, Hans I. & Kennedy, Richard H.
System: The UNT Digital Library
6.70 EV Resonance in U²³⁸ (open access)

6.70 EV Resonance in U²³⁸

"Using the Brookhaven fast chopper, transmission curves were obtained for the 6.70 +/- .06 ev resonance in U238 using four different thicknesses of natural uranium metal." The measurements for the transmission curves are summarized in the table provided.
Date: November 9, 1953
Creator: Levin, Jules S.
System: The UNT Digital Library
Free Convection in the SIR Mark A Rotating Plugs (open access)

Free Convection in the SIR Mark A Rotating Plugs

This technical report is intended as a brief description of the free convection problem existing in the various annuli of the SIR Mark A rotating plugs. It is by no means a complete report of the plug "hot tests", but merely records some of the more significant experimental observations and presents a few of the theories and calculations made to explain the observed free convection phenomenon. The general discussion which follows is chronological. Details of analyses are relegated to the Appendix.
Date: November 12, 1953
Creator: Timo, D. P.
System: The UNT Digital Library
The Cosmotron Radio Frequency Accelerating System (open access)

The Cosmotron Radio Frequency Accelerating System

The proton beam in the Cosmotron is accelerated to an energy of 2.3 billion electron volts by a radio frequency voltage which is impressed across an insulated gap in the ferrite loaded accelerating cavity of the vacuum chamber. To maintain a constant orbit radius as the beam is accelerated, the frequency of the accelerating voltage must increase from the initial value of 370 kc/sec to 4200 kc/sec during the one second magnet pulse. Over the entire 11:1 frequency range, a minimum gap voltage of 2000 volts rms must be maintained. At every instant throughout the magnet pulse, the frequency of this voltage must be a predetermined function of the magnet field to a high degree of accuracy. Frequency errors greater than about .2 percent result in loss of beam due to excessive radius changes. Smaller errors than this however, can excite fatal phase oscillations in the beam if they occur rapidly. As little as .005 percent frequency modulation can result in total beam loss if it occurs at a rate of several kc/sec, where the beam is most sensitive to such disturbances.
Date: November 24, 1953
Creator: Rogers, Edwin, J. & Flotkin, M.
System: The UNT Digital Library
Physical Properties of Nickel Carbonyl (open access)

Physical Properties of Nickel Carbonyl

The vapor pressure of nickel carbonyl was determined with material obtained by laboratory preparation with CO and Ni powder and by purifying commercial nickel carbonyl. The observed vapor pressure data were used in the derivation of the following equations which express the vapor pressure, P, of liquid nickel carbonyl and the sublimation pressure, P/sub s/, of the solid, respectively, as a function of the absolute temperature, T: log P = 7.88431578/T and log P/sub s/ 10.1897-2173/T. The average heat of vaporization is calculated to be 7.22 plus or minus 0.01 kcal per mole and the molecular heat of sublimation of Ni(CO)/sub 4/ is 9.94 plus or minus 0.11 kcal. Extrapolation to 760 mm Hg gives a boiling point of 42.2 deg C. The melting point of purified nickel carbonyl occurred at -17.2 deg C. The sensitivity of the melting point to the effect of impurities was demonstrated with commercial nickel carbonyl which melted at-19.4 deg C before purification, at --18.3 deg C after distillations at 0 deg C, and at -17.2 deg C after sublimation at -25 deg C. The vapor pressure of liquid nickel carbonyl at 0 deg C is of little value in evaluation of the purity of …
Date: November 24, 1953
Creator: Walsh, K. A.
System: The UNT Digital Library
Medical and Health Physics Quarterly Report July, August, September, 1953 (open access)

Medical and Health Physics Quarterly Report July, August, September, 1953

Quarterly report on the metabolic properties of various materials, biological studies of radiation effects, health chemistry, health physics.
Date: November 27, 1953
Creator: University of California Radiation Laboratory
System: The UNT Digital Library