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Office of Scientific & Technical Information Technical Reports
174
Congressional Research Service Reports
101
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37
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27
TRAIL Microcard Collection
14
National Advisory Committee for Aeronautics Collection
9
Texas State Publications
2
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2
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Aircraft compass characteristics
From Summary: "A description of the test methods used at the National Bureau of Standards for determining the characteristics of aircraft compasses is given. The methods described are particularly applicable to compasses in which mineral oil is used as the damping liquid. Data on the viscosity and density of certain mineral oils used in United States Navy aircraft compasses are presented. Results of flight tests are presented."
Date:
December 14, 1935
Creator:
Peterson, John B. & Smith, Clyde W.
System:
The UNT Digital Library
Power-Off Tests of the Northrop N9M-2 Tailless Airplane in the 40- by 80-Foot Wind Tunnel
Report discussing tests on the N9M-2 airplane to evaluate the airplane efficiency factor and to investigate the characteristics of the aeroboost in the elevon control system. The efficiency factor compared reasonably well to conventional airplanes and the aeroboost system and valve-chatter tests were satisfactory.
Date:
December 14, 1944
Creator:
Stevens, Victor I., Jr. & McCormack, Gerald M.
System:
The UNT Digital Library
Effect of stainless steel thimbles on pile reactivity
Failure of a vertical safety rod thimble at 105-B has led to consideration of a stainless steel (SS) thimble as replacement. 1/16 in. SS would result in 4% loss in control power of that safety rod. If all thimbles were replaced by 1/16 in. SS, there would be a reactivity loss of 790 ih.
Date:
December 14, 1945
Creator:
Marshall, L. W.
System:
The UNT Digital Library
The Identification of the by-Products From the Reaction of Tuballoy Trioxide With Hexachloropropene. Summary Report
None
Date:
December 14, 1945
Creator:
McBee, E. T. & Evans, L. R.
System:
The UNT Digital Library
Summary Report on Determination on Non-Volatile Matter in Tuballoy Tetrachloride
None
Date:
December 14, 1945
Creator:
McBee, E.T.; DeVries, T. & Rothrock, G.M.
System:
The UNT Digital Library
The Path of Carbon in Photosynthesis IV. The Identity and Sequencefo the Intermediates in Sucrose Synthesis
The synthesis of sucrose from C{sup 14}0{sub 22} by green algae has been investigated and the intermediates separated by the method of paper chromatography. It is shown that sucrose is the first free sugar appearing during photosynthesis. It is apparently formed by condensation of the glucose-I-phosphate and a fructose phosphate. A series of radioautographs of paper chromatograms of extracts from plants which have photosynthesized for different periods of time has been prepared. The results indicate that 2-phosphoglyceric acid is the first product synthesized from C0{sub 2} during photosynthesis.
Date:
December 14, 1948
Creator:
Calvin, M. & Benson, A.
System:
The UNT Digital Library
The Distribution of the Positive-Negative Ratio for Mesons
Positive and negative mesons produced in a common target in the cyclotron are received in two photographic plates. In the magnetic field of the cyclotron, negatives are deflected to one plate, positives to the other. The mesons must pass through an absorber before entering the plates in order to be observable.
Date:
December 14, 1949
Creator:
Rankin, Bayard, 1924-
System:
The UNT Digital Library
Low-Speed Investigation of Deflectable Wing-Tip Ailerons on an Untapered 45 Degrees Sweptback Semispan Wing With and Without an End Plate
Report presenting a low-speed wind-tunnel investigation to determine the characteristics of deflectable wing-tip ailerons on an untapered 45 degree sweptback semispan wing. Ailerons with triangular and parallelogram plan forms with a maximum chord of 0.625 wing chord and a flat-plat profile were investigated. The aerodynamic characteristics in pitch and lateral control characteristics are included.
Date:
December 14, 1949
Creator:
Fischel, Jack & Watson, James M.
System:
The UNT Digital Library
Effects of sweep on the damping-in-roll characteristics of three sweptback wings having an aspect ratio of 4 at transonic speeds
Report presenting the damping-in-roll characteristics of three wings with an aspect ratio of 4, a taper ratio of 0.6, an NACA 65A006 airfoil section, and three different sweep angles at a range of Mach numbers and angles of attack. The data were obtained in the 7- by 10-foot tunnel transonic bump by utilizing the twisted-wing technique. Results regarding the damping-in-roll parameter, angle of attack, and lift-curve slope are provided.
Date:
December 14, 1950
Creator:
Lockwood, Vernard E.
System:
The UNT Digital Library
Limits of pile operating level
This report, compiled by Mr. W. R. Lewis of the Pile Technology Division, is a revision of Document HW-15516 (January 5, 1950) in consideration of new knowledge obtained during the past year. The document discusses the technical factors involved in attaining higher power levels in the various Hanford Piles. The purpose of this presentation is to summarize the present operating limitations and the possibilities of increased production rates. The limitations discussed are: A. Reactivity and flattening; B. Aluminum thimbles; C. Graphite temperature considerations; D. Boiling or vapor binding considerations; E. Tube and slug jacket corrosion; F. Effluent water activity; G. Distortion of the biological shields; H. Radiation considerations; and I. Pile control system capacity.
Date:
December 14, 1950
Creator:
Woods, W. K. & Lee, E. P.
System:
The UNT Digital Library
Measurements of an Iron and Borated Water Shield in the Lid Tank : Experiment 10
The following report measures a shield mockup in three regions: the first made almost entire of iron; the second, transition, region is made of various thicknesses of B4C; and the third region was borated water. The iron samples used in the experiments were made in the form of rectangular plates and place in the lid tank; however, the plates were not completely flat and created a water gap that was measured in this report.
Date:
December 14, 1950
Creator:
Blizard, E. P. & Clifford, C. E.
System:
The UNT Digital Library
Studies in the Carbonate-Uranium System Part I. Investigations in the Four Component System UO$sub 3$-Na$sub 2$O-CO$sub 2$-H$sub 2$O
None
Date:
December 14, 1950
Creator:
Blake, C. A.; Lowrie, R. S.; Hill, D. G. & Brown, K. B.
System:
The UNT Digital Library
The Diffusion of Hydrogen Through Materials of Construction
Results on the investigation of the rate of diffusion of hydrogen through several types of stainless steel and other materials of construction are reported with particular emphasis on Type 347 stainless steel.
Date:
December 14, 1951
Creator:
Flint, P. S.
System:
The UNT Digital Library
Dynamic Corrosion and Mass Transfer of Chrome Steel by Bismuth
From introduction: "This report summarizes the experimental data obtained at the San Pablo Laboratory on the corrosion of 5% Cr - 0.5% Mo steel by bismuth under conditions that allow mass transfer to occur. The bismuth is circulated through a temperature gradient by means of a thermosiphon loop."
Date:
December 14, 1951
Creator:
Egan, C. J.
System:
The UNT Digital Library
Effects of horizontal-tail position, area, and aspect ratio on low-speed static longitudinal stability and control characteristics of a 60 degrees triangular-wing model having various triangular-all-movable horizontal tails
Report presenting a low-speed investigation in the stability tunnel to determine the static longitudinal stability and control characteristics of a 60 degree triangular-wing model with various triangular-all-movable horizontal tails. An all-movable trail of 10 percent of the wing area and aspect ratio 2.31 was investigated in 17 tail positions, including positions above, below, and to the rear of the assumed center of gravity.
Date:
December 14, 1951
Creator:
Jaquet, Byron M.
System:
The UNT Digital Library
Exploratory investigation at high and low subsonic Mach numbers of two experimental 6-percent-thick airfoil sections designed to have high maximum lift coefficients
Report presenting an investigation to determine if thin airfoils with increased values of low-speed maximum lift coefficient but also retain the basic advantages of thin sections at high Mach numbers can be developed. Several experimental thin airfoil sections were developed from an analysis of airfoil data and two of them were investigated at high and low subsonic Mach numbers. Results regarding the low-speed characteristics and high-speed characteristics are provided.
Date:
December 14, 1951
Creator:
Loftin, Laurence K., Jr. & von Doenhoff, Albert E.
System:
The UNT Digital Library
Primary Flux of High Energy Protons and $alpha$-Particles
None
Date:
December 14, 1951
Creator:
Kaplon, M. F.; Ritson, D. M. & Woodruff, E. P.
System:
The UNT Digital Library
Short Time Corrosion Tests of Bronze, Mild Steel, T-304 Stainless Steel and 2S Aluminum in 10% Potassium Tetraborate Solution
Report summarizing corrosion tests meant to determine the corrosion rates of bronze, mild steel, T-304 stainless steel and 2S aluminum in 10% potassium tetraborate solution. Tests were completed under the boiling point of each solution except for 2S aluminum, which was tested at 40C, the approximate temperature in a pile.
Date:
December 14, 1951
Creator:
Katayama, Y. B.
System:
The UNT Digital Library
The Synthetic Liquid Fuel Potential of Colorado: Volume 1 - Text
Report documenting the suitability of Colorado for plant locations to produce synthetic liquid fuels, based on raw materials such as coal, oil shale, natural gas, and oil-impregnated strippable deposits.
Date:
December 14, 1951
Creator:
Ford, Bacon, and Davis
System:
The UNT Digital Library
The Synthetic Liquid Fuel Potential of Colorado: Volume 2 - Exhibits and Appendices
Volume of supplementary data, illustrations, and other information related to a study of the suitability of areas in Colorado for developing coal, natural gas, oil shale, and other deposits into synthetic liquid fuels.
Date:
December 14, 1951
Creator:
Ford, Bacon, and Davis
System:
The UNT Digital Library
The Synthetic Liquid Fuel Potential of Kentucky
Report documenting the suitability of Kentucky for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest.
Date:
December 14, 1951
Creator:
Ford, Bacon, and Davis
System:
The UNT Digital Library
Comparative Study of Alternative Fibrous Glass and Sand Exhaust Ventilation Air Filter Installations for Purex
Unanticipated radioactive contamination of the 200 Areas environs was discovered in the latter part of 1947, about 2.5 years after the startup of the Bismuth Phosphate Separation Plants. It was subsequently established that this contamination was due to radioactive particles emanating from the Separation Plants' stacks, and the need for exhaust ventilation air filtration equipment was recognized. Sand filters were installed in the fall of 1948 in the ventilation systems of the B and T Bismuth Phosphate Plants. These filter units essentially eliminated this contamination problem and have performed satisfactorily to the present time.
Date:
December 14, 1953
Creator:
Zahn, Lyle L., Jr.
System:
The UNT Digital Library
Effect of Large Deflection of a Canard Control and Deflections of a Wing-Tip Control on the Static-Stability and Induced-Roll Characteristics of a Cruciform Canard Missile at a Mach Number of 2.01
Memorandum presenting an investigation conducted in the 4- by 4-foot supersonic pressure tunnel at Mach number 2.01 to determine the static stability and control characteristics of a canard-type missile configuration with large deflections of the canard controls and with deflection of wing-tip controls. The results of the investigation indicated that with a 30 degree deflection of the canard control a maximum trim normal-force coefficient of 0.4 and a maximum trim angle of attack of 12 degrees might be obtained for the optimum center-of-gravity location.
Date:
December 14, 1953
Creator:
Spearman, M. Leroy
System:
The UNT Digital Library
Health Physics Monthly Information Report. November 1-30, 1953
None
Date:
December 14, 1953
Creator:
Bradley, nJ.E.
System:
The UNT Digital Library