Resource Type
Serial/Series Title
NACA Research Memorandums
50
NACA Technical Notes
23
Atomic Energy Commission Reports
16
Trace elements investigations report
9
United States Geological Survey Reports
9
University of California Radiation Laboratory Reports
7
CF (Series)
4
Oak Ridge National Laboratory Reports
4
TID
4
AEC research and development report
3
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121 Matching Results
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Adsorption of Zirconium-Niobium on Silica Gel
From abstract: "Adsorption of radioactive zirconium-niobium from uranyl nitrate solutions by silica gel was increased by increasing the temperature and time the solution contacts silica gel, and decreased by "aging" the solutions before contacting the silica gel."
Date:
July 1957
Creator:
Karraker, David G. & Parker, Sidney G.
Object Type:
Report
System:
The UNT Digital Library
An Apparatus for the Study of Thermoluminescence from Minerals
This report discusses an apparatus that has been constructed to record the thermoluminescence of a mineral in the form of a powder or a single crystal at temperatures from -100 C to +400 C.
Date:
July 1957
Creator:
Ashby, G. E. & Kellagher, R. C.
Object Type:
Report
System:
The UNT Digital Library
Betatron Oscillation Frequency Shift Due To "N-Errors"
"Expressions are found to relate DELTA gamma to the n-errors.'' It is demonstrated that the integral n-value concept'' is of no use in the present case. A modification of integrated n-value'' is suggested."
Date:
July 1, 1957
Creator:
Lanza, G. & Steffen, Klaus G.
Object Type:
Report
System:
The UNT Digital Library
Calculated Effect of Some Airplane Handling Techniques on the Ground-Run Distance in Landing on Slippery Runways
Note presenting some calculations made on the basis of simplifying assumptions to determine the effect on the ground-run distance of maintaining a nose-high attitude instead of a three-point attitude in landings of several types of jet airplanes on slippery runways. The airplanes considered were a swept-wing transport and unswept-, swept-, and delta-wing fighters. Results regarding the effect of airplane attitude and effect of flap retraction are provided.
Date:
July 1957
Creator:
Zalovcik, John A.
Object Type:
Report
System:
The UNT Digital Library
Chemical Engineering Division Summary Report for January, February, and March 1957
A fused fluoride process for dissolution of zirconium-uranium fuel alloys is being developed. The alloy is dissolved in an equimolar sodium fluoride-zirconium fluoride melt at 600°C by sparging the system with hydrogen fluoride. The uranium is volatilized from the melt as the hexafluoride by a sparging operation with fluorine or bromine pentafluoride vapor. This product is then decontaminated and purified by fractional distillation.
Date:
July 1957
Creator:
Lawroski, Stephen; Rodger, W. A.; Vogel, R. C. & Munnecke, V. H.
Object Type:
Report
System:
The UNT Digital Library
A Comparison of Plants and Soils as Prospecting Guides for Uranium in Fall River County, South Dakota
A report about a comparison of the uranium content of plants and soils as prospecting guides for uranium made for areas of known mineralization in Fall River County, South Dakota.
Date:
July 1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Determination of Thorium in the Parts Per Million Range in Rocks
Abstract: "A procedure for the determination of thorium in the concentration range of 0.2 to 10 parts per million ThO2 in felsic or mafic rocks. Thorium is extracted by mesityl oxide and purified by iodate precipitation from nitric acid medium containing tartaric acid and hydrogen peroxide. The thorium is determined spectrophotometrically with thoron from meso-tartaric acid medium."
Date:
July 1957
Creator:
Levine, Harry & Grimaldi, Frank S.
Object Type:
Report
System:
The UNT Digital Library
Effect of sweep on performance of compressor blade sections as indicated by swept-blade rotor, unswept-blade rotor, and cascade tests
Report presenting an investigation to determine the induced effect of sweep on an axial-flow compressor blade. Results regarding the blade-section pressure distributions, matching pressure distributions, comparison of turning angles in compressor and cascade, corrected turning angles, and normal-force coefficients are provided.
Date:
July 1957
Creator:
Godwin, William R.
Object Type:
Report
System:
The UNT Digital Library
Effects of airplane flexibility on wing bending strains in rough air
"Some results on the effects of wing flexibility on wing bending strains as determined from flight tests of a Boeing B-29 and a Boeing B-47A airplane in rough air are presented. Results from an analytical study of the flexibility effects on the B-29 wing strains are compared with the experimental results. Both the experimental and calculated results are presented as frequency-response functions of the bending strains at various spanwise wing stations to gust disturbances. In addition, some indirect evidence of the effect of spanwise variations in turbulence on the response of the B-47A airplane is presented" (p. 1).
Date:
July 1957
Creator:
Coleman, Thomas L.; Press, Harry & Shufflebarger, C. C.
Object Type:
Report
System:
The UNT Digital Library
Effects of Thermal Relaxation and Specific-Heat Changes on Measurements With a Pneumatic-Probe Pyrometer
"Equations are derived which evaluate the effects of thermal vibrational relaxation and specific-heat changes on pneumatic-probe pyrometer measurements in the region 1000 to 3000 degrees K and Mach numbers between 0.3 and 2.0. Examples are given for typical probes in two combustion mixtures" (p. 1).
Date:
July 1957
Creator:
Kuhns, P. W.
Object Type:
Report
System:
The UNT Digital Library
Elastic Scattering of 7 Mev Neutrons (Theoretical Curves)
Abstract: "Theoretical differential cross-sections computed from the optical model for 7 Mev neutrons are presented for a large number of nuclei. The parameters used for the calculations were selected on the basis of best fit to existing experimental data."
Date:
July 1957
Creator:
Bjorklund, F. & Fernbach, Sidney, 1917-1991
Object Type:
Report
System:
The UNT Digital Library
Elastic Scattering of 14 Mev Neutrons (Theoretical Curves)
Abstract: "Theoretical differential cross-sections computed from the optical model for 14 Mev neutrons are presented for a large number of nuclei. The parameters used for the calculations were selected on the basis of best fit to existing experimental data."
Date:
July 1957
Creator:
Bjorklund, F. & Fernbach, Sidney, 1917-1991
Object Type:
Report
System:
The UNT Digital Library
Estimation of incremental pitching moments due to trailing-edge flaps on swept and triangular wings
Report presenting a method by which incremental pitching moments can be estimated for swept and triangular wings with arbitrary types of trailing-edge high-lift flaps. Span-loading theory is combined with two-dimensional airfoil data adjusted for the effects of sweep.
Date:
July 1957
Creator:
James, Harry A. & Hunton, Lynn W.
Object Type:
Report
System:
The UNT Digital Library
Experimental Fishing to Determine Distribution of Salmon in the North Pacific Ocean, 1955
Three vessels undertook a 1955 broad study of the high-seas distribution of salmon in the North Pacific Ocean.
Date:
July 1957
Creator:
Powell, Donald E. & Peterson, Alvin E.
Object Type:
Report
System:
The UNT Digital Library
Experimental Investigation of Attenuation of Strong Shock Waves in a Shock Tube With Hydrogen and Helium as Driver Gases
Note presenting an experimental investigation of the attenuation of strong shock waves in air in a shock tube. Time-history measurements were made of the static pressure at several stations in the wall of the tube. Hydrogen and helium were used as driver gases. A helium-driven shock wave was found to decay only about one-half as rapidly as a hydrogen-driven shock wave.
Date:
July 1957
Creator:
Jones, Jim J.
Object Type:
Report
System:
The UNT Digital Library
Fission and Spallation Competition in Ra²²⁶, Th²³⁰, U²³⁵, and Np²³⁷
This report follows the radiochemical study of fission and spallation products produced by bombardment of U-235 with 18- to 16-Mev helium ions and of the spallation products produced by 8- to 23-Mev deuteron bombardments of Np-237.
Date:
July 1957
Creator:
Vandenbosch, Robert
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Flight measurements of boundary-layer temperature profiles on a body of revolution (NACA RM-10) at Mach numbers from 1.2 to 3.5
Report presenting flight testing of a fin-stabilized parabolic body of revolution (NACA RM-10) as a rocket-propelled model. Boundary-layer static-temperature profiles were determined around the body and from Mach number profiles obtained from a total-pressure rake. Results regarding boundary-layer profiles, skin-friction coefficients, and heat-transfer coefficients are provided.
Date:
July 1957
Creator:
Swanson, Andrew G.; Buglia, James J. & Chauvin, Leo T.
Object Type:
Report
System:
The UNT Digital Library
Geologic Investigations of Radioactive Deposits
The following report is a statement of the Geological Survey's progress on the investigation of the fundamental geology, mineralogy, and geochemistry of uranium and other radioactive materials with the intention of discovering and delimiting areas favorable for the future production of uranium and other radioactive ores. This report covers the period from December 1, 1956 to May 31, 1957.
Date:
July 1957
Creator:
Geological Survey (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Geologic Investigations of Radioactive Deposits, Semiannual Progress Report: December 1, 1956 - May 31, 1957
From foreword: This report is a statement of progress during a six-month period on investigations of radioactive materials in the United States.
Date:
July 1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Geology of the Uranium Deposits in the Cochetopa District, Saguache County, Colorado
Discussing the geology of uranium deposits in the Cochetopa District, in Saguache. County, Colorado
Date:
July 1957
Creator:
Malan, Roger C.; Ranspot, Henry W. & Spengler, Ralph G.
Object Type:
Report
System:
The UNT Digital Library
Ground Effects on the Longitudinal Characteristics of Two Models With Wings Having Low Aspect Ratio and Pointed Tips
Wind-tunnel tests were conducted to determine the ground effects on a tailless model with a wing of aspect ratio 2 and infinite taper, and on a tailed model with a triangular wing of aspect ratio 3, with flaps. Control-surface hinge moments were measured on the tailless model. The results are compared with the predictions of the theory of Tani, et al.
Date:
July 1957
Creator:
Buell, Donald A. & Tinling, Bruce E.
Object Type:
Report
System:
The UNT Digital Library
Handbook of Structural Stability Part 1: Buckling of Flat Plates
"The various factors governing buckling of flat plates are critically reviewed and the results are summarized in a comprehensive series of charts and tables. Numerical values are presented for buckling coefficients of flat plates with various boundary conditions and applied loadings. The effects of plasticity are incorporated in non dimensional buckling charts utilizing the three-parameter description of stress-strain curves" (p. 1).
Date:
July 1957
Creator:
Gerard, George & Becker, Herbert
Object Type:
Report
System:
The UNT Digital Library
Handbook of Structural Stability Part 2: Buckling of Composite Elements
"The local buckling of stiffener sections and the buckling of plates with sturdy stiffeners are reviewed, and the results are summarized in charts and tables. Numerical values of buckling coefficients are presented for longitudinally compressed stiffener sections of various shapes, for stiffened plates loaded in longitudinal compression and in shear, and for stiffened cylinders loaded in torsion. Although the data presented consist primarily of elastic-buckling coefficients, the effects of plasticity are discussed for a few special cases" (p. 1).
Date:
July 1957
Creator:
Becker, Herbert
Object Type:
Report
System:
The UNT Digital Library
Handbook of Structural Stability Part 2: Buckling of Composite Elements
"The local buckling of stiffener sections and the buckling of plates with sturdy stiffeners are reviewed, and the results are summarized in charts and tables. Numerical values of buckling coefficients are presented for longitudinally compressed stiffener sections of various shapes, for stiffened plates located in longitudinal compression and in shear, and for stiffened cylinders loaded in torsion. Although the data presented consist primarily of elastic-buckling coefficients, the effects of plasticity are discussed for a few special cases" (p. 1).
Date:
July 1957
Creator:
Becker, Herbert
Object Type:
Report
System:
The UNT Digital Library