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Technical Report Archive and Image Library
265
National Advisory Committee for Aeronautics Collection
159
Office of Scientific & Technical Information Technical Reports
117
TRAIL Microcard Collection
81
Harris and Eliza Kempner
19
Boy and Girl Scout Annual Reports
2
Congressional Research Service Reports
1
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NACA Research Memorandums
153
Atomic Energy Commission Reports
39
Hanford Works Reports
26
HW (Series)
21
Personal Papers (MS 80-0002)
19
Oak Ridge National Laboratory Reports
16
University of California Radiation Laboratory Reports
15
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10
Report (U.S. Atomic Energy Commission)
8
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The Determination of Nitrous Oxide with the Infrared Spectrometer
The following report describes the process of the determination of nitrous oxide with the infrared spectrometer.
Date:
January 25, 1950
Creator:
Moore, R. H. & Carson, W. N.
System:
The UNT Digital Library
Fast Neutron Data
A report concerning fast neutrons including theory and compiled data.
Date:
January 25, 1950
Creator:
Feshbach, H.
System:
The UNT Digital Library
Investigation at Mach Number 1.62 of the Pressure Distribution Over a Rectangular Wing With Symmetrical Circular-Arc Section and 30-Percent-Chord Trailing-Edge Flap
Report presenting an investigation of the pressure distribution over a rectangular wing with a 9-percent-thick symmetrical circular-arc section and a 30-percent-chord trailing-edge flap. Results are given for pressure distributions, Schileren and liquid-film studies, and wing section characteristics are provided.
Date:
January 25, 1950
Creator:
Czarnecki, K. R. & Mueller, James N.
System:
The UNT Digital Library
The Path of Carbon in Photosynthesis VIII. The Role of MalicAcid
Malonate has been found to inhibit the formation of malic acid during short periods of photosynthesis with radioactive carbon dioxide. This result, together with studies which show the photosynthetic cycle to be operating normally at the same time, indicates that malic acid is not an intermediate in photosynthesis but is probably closely related to some intermediate of the cycle. Absence of labeled succinic and fumaric acids in these experiments, in addition to the failure of malonate to inhibit photosynthesis, precludes the participation of these acids as intermediates in photosynthesis.
Date:
January 25, 1950
Creator:
Bassham, James A.; Benson, Andrew A. & Calvin, Melvin
System:
The UNT Digital Library
Corrosion of Austenitic Stainless Steels in MJ-4 Raw Streams
Introduction: "A laboratory investigation of the relative corrosion resistance of several austenitic stainless steels to the RAW stream of the Tributyl Phosphate Waste Metal Recovery Process was made during the first quarter of 1950. The results of this investigation are reported herein; all original data are recorded in laboratory notebook HW-3282-T."
Date:
April 25, 1950
Creator:
Koenig, W. W.
System:
The UNT Digital Library
The Effect of Spanwise Aileron Location on the Rolling Effectiveness of Wings With 0 Degree and 45 Degree Sweep at Subsonic, Transonic, and Supersonic Speeds
Report discussing an investigation of the effect of spanwise aileron location on the rolling effectiveness of plain faired ailerons on untapered wing plan forms with designated sweep, airfoil sections, and aspect ratio using rocket-propelled test vehicles. Drag data is also presented for all configurations tested. Spanwise aileron location was found to have little effect on the effectiveness of the aileron on an unswept wing plan form.
Date:
April 25, 1950
Creator:
Strass, H. Kurt
System:
The UNT Digital Library
Model Ditching Investigations of Three Airplanes Equipped With Hydro-Skis
"Model investigations were made to determine the ditching characteristics of three typical multiengine airplanes equipped with possible arrangements of hydro-ski ditching gear. The behavior of the models was determined from visual observations, acceleration records, and motion pictures of the landings. Data are presented in tabular form and sequence photographs" (p. 1).
Date:
April 25, 1950
Creator:
Fisher, Lloyd J.
System:
The UNT Digital Library
Model ditching investigations of three airplanes equipped with hydro-skis
Report presenting an investigation to determine the ditching characteristics of three typical multiengine airplanes equipped with different arrangements of hydro-ski ditching gear. The behavior was determined from visual observations, acceleration records, and motion pictures of the landings. Results regarding ski size, shape, and location are provided.
Date:
April 25, 1950
Creator:
Fisher, Lloyd J.
System:
The UNT Digital Library
Effects of inlet icing on performance of axial-flow turbojet engine in natural icing conditions
A flight investigation in natural icing conditions was conducted to determine the effect of inlet ice formations on the performance of axial-flow turbojet engines. The results are presented for icing conditions ranging from a liquid-water content of 0.1 to 0.9 gram per cubic meter and water-droplet size from 10 to 27 microns at ambient-air temperature from 13 to 26 degrees F. The data show time histories of jet thrust, air flow, tail-pipe temperature, compressor efficiency, and icing parameters for each icing encounter. The effect of inlet-guide-vane icing was isolated and shown to account for approximately one-half the total reduction in performance caused by inlet icing.
Date:
May 25, 1950
Creator:
Acker, Loren W. & Kleinknecht, Kenneth S.
System:
The UNT Digital Library
Preparation and Properties of RAF Solutions : Low Acid TBP Flowsheets HW Number 4 and HW Number 5
This report follows work with the purposes of determining the minimum amount of nitric acid required to dissolve slurries of stored metal waste, determining the stability of such metastable solutions as a function of their chemical compositions - primarily acidity - versus time and temperature, and to define a feed suitable for a low-acid TBP process flowsheet, and to indicate the range of variations in composition which can be tolerated for plant operation.
Date:
July 25, 1950
Creator:
Maness, R. F. & Harmon, M. K.
System:
The UNT Digital Library
Determination by the Free-Fall Method of the Drag and Longitudinal Stability and Control Characteristics of a Canard Model at Transonic Speeds
Report discussing the stability and control characteristics and drag of a canard or tail-first configuration explored using the free-fall method. Information about the basic flight characteristics, experimental coefficients, zero-lift drag configurations, and longitudinal stability and trim characteristics is provided.
Date:
August 25, 1950
Creator:
Kraft, Christopher C., Jr. & Mathews, Charles W.
System:
The UNT Digital Library
A theoretical investigation of the influence of auxiliary damping in pitch on the dynamic characteristics of a proportionally controlled supersonic canard missile configuration
Report presenting a theoretical analysis of a supersonic canard missile configuration to show the means that might be used to improve its dynamic performance characteristics. The analysis was conducted by using the best available estimates of aerodynamic and airframe parameters. Results regarding missile longitudinal performance, selection of rate factor, angle of attack and normal acceleration, frequency response, pole plots, and tip control are provided.
Date:
August 25, 1950
Creator:
Nelson, Walter C. & Passera, Anthony L.
System:
The UNT Digital Library
Wing-flow measurements of longitudinal stability and control characteristics of a canard airplane configuration with a 45 degree sweptback wing and a triangular all-movable control surface
Report presenting measurements of the longitudinal stability and control characteristics of a canard airplane configuration using the wing-flow method. The investigation included measurements of lift, pitching moment, and rolling moment of the semispan model with control settings between several different degrees. The experimental data are presented in summarized or abridged form and calculated trim curves are presented for various flight loading conditions.
Date:
August 25, 1950
Creator:
Crane, Harold L. & Adams, James J.
System:
The UNT Digital Library
Chemistry Division Quarterly Report: June, July and August, 1950
Quarterly progress report on various research projects conducted at the University of California Radiation Laboratory.
Date:
September 25, 1950
Creator:
Lawrence Berkeley National Laboratory
System:
The UNT Digital Library
Measurements of Aerodynamic Characteristics of a 35 Degree Sweepback NACA 65-009 Airfoil Model With 1/4 Chord Flap Having 31 Percent Flap Chord Overhang Balance by the NACA Wing Flow Method
Report of testing on an untapered 35-degree sweptback airfoil-flap model, representative of a wing or tail surface, with several 1/4-chord full-span flaps differing in aerodynamic balance. A plain flap, a horn-balanced flap, and a beveled-trailing-edge flap were compared to a flap that had a 31-percent-flap-chord overhang balance. Information about lift, pitching-moment, and hinge-moment characteristics is provided.
Date:
September 25, 1950
Creator:
Johnson, Harold I. & Goodman, Harold R.
System:
The UNT Digital Library
The Preparation and Physical Properties of Uranium Binary Alloys Containing Aluminum and Columbium
This report follows experiments conducted to determine an alloy addition agent for uranium which would subsequently increase the yield strength and creep resistance of uranium.
Date:
September 25, 1950
Creator:
Grobecker, D. W.; Arnold, W. F.; Taub, J. M. & Doll, D. T.
System:
The UNT Digital Library
WHY SEPARATE STABLE ISOTOPES
None
Date:
September 25, 1950
Creator:
Keim, C.P.
System:
The UNT Digital Library
Comparison of large scale flight measurements of zero lift drag at Mach numbers from 0.9 to 1.7 of two wing-body combinations having similar 60 degree triangular wings with NACA 65A003 sections
Report presenting an investigation of zero-lift drag of a fin-stabilized wing-body combination made at high-subsonic and supersonic speeds in a range of Reynolds numbers. The data are presented with that from a wingless body and similar winged body with a slightly different ratio of body frontal area to wing area. Results regarding total drag and wing-plus-interference drag are provided.
Date:
October 25, 1950
Creator:
Schult, Eugene D.
System:
The UNT Digital Library
Correlation of physical properties with molecular structure for some dicyclic hydrocarbons having high thermal-energy release per unit volume -- 2-alkylbiphenyl and the two isomeric 2-alkylbicyclohexyl series
Three homologous series of related dicyclic hydrocarbons are presented for comparison on the basis of their physical properties, which include net heat of combustion, density, melting point, boiling point, and kinematic viscosity. The three series investigated include the 2-n-alkylbiphenyl, 2-n-alkylbicyclohexyl (high boiling), and 2-n-alkylbiphenyls (low boiling) series through c sub 16, in addition to three branched-chain (isopropyl, sec-butyl, and isobutyl) 2-alkylbiphenyls and their corresponding 2-alkylbicyclohexyls. The physical properties of the low-boiling and high-boiling isomers of 2-sec-butylbicyclohexyl and 2-isobutylbicyclohexyl are reported herein for the first time.
Date:
January 25, 1951
Creator:
Goodman, Irving A. & Wise, Paul H.
System:
The UNT Digital Library
Spectrophotometric Determination of Silicon in Zirconium
Report presenting background and instructions on completing spectrophotometric determination of silicon in zirconium, which relies on the solubility of silicon tetrachloride in a small amount of nitric acid solution and the complexing of fluorides with boric acid.
Date:
February 25, 1951
Creator:
Read, E. B. & Martin, J. P.
System:
The UNT Digital Library
The Magnitude of the [gamma] Effect
The following report follows a correction on a previous report (CP-1381) on the value of the magnitude of the gamma effect.
Date:
April 25, 1951
Creator:
Wigner, E. P.
System:
The UNT Digital Library
Preliminary Data on the Effect of Body-Nose Bluntness on the Drag and Pressure Recovery of a Side-Inlet-Body Combination at Mach Numbers of 1.4 and 1.7
Memorandum presenting the pressure recovery, mass flow, and drag of a twin-scoop, side-inlet-body combination measured at Mach number 1.4 and 1.7. The inlet was located on a body having an ogival nose followed by a cylindrical section and a total fineness ratio of 5.
Date:
April 25, 1951
Creator:
Stroud, John F. & Anderson, Warren E.
System:
The UNT Digital Library
Aqueous Homogeneous Reactors for Producing Central-Station Power
Report issued by the Oak Ridge National Laboratory discussing aqueous homogeneous reactors used in central-station power. As stated in the introduction, "it contains an evaluation of the potentiality of producing power only, as exhibited by aqueous homogeneous systems" (p. 6). This report includes tables, and illustrations.
Date:
May 25, 1951
Creator:
Briggs, R. B.; Haubenreich, P. N.; Sanders, J. P.; Aven, R. E.; Zapp, F. C.; Segaser, C. L. et al.
System:
The UNT Digital Library
Investigation of annular liquid flow with concurrent air flow in horizontal tubes
Report presenting visual observations and flow analyses made of annular liquid flow with cocurrent air flow in 2- and 4-inch-diameter horizontal transparent tubes. The experiments occurred over a range of air mass velocities, air temperatures, and Reynolds numbers. Results regarding the velocity and thickness of liquid films, description of water-film disturbances, effect of flow variables on liquid-film characteristics, and relation between disturbances and flow conditions are provided.
Date:
May 25, 1951
Creator:
Kinney, George R. & Abramson, Andrew E.
System:
The UNT Digital Library