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Lift and drag data for 30 pusher-propeller shaft housings on an NACA 65,3-018 airfoil section
Report presenting tests in the two-dimensional low-turbulence pressure tunnel to study the interference effects of various pusher-propeller shaft-housing combinations on a low-drag airfoil. Thirty different combinations were tested, variations being made in shaft size, shape, angle, and fillet.
Date:
November 1943
Creator:
Abbott, Frank T., Jr.
Object Type:
Report
System:
The UNT Digital Library
Interference effects of longitudinal flat plates on low-drag airfoils
Three airfoils were tested with an intersecting flat plate normal to the span as a preliminary study of interference effects on airfoils. Small interference effects were noted on the first two airfoils, while larger effects were noted on the NACA 66,2-422 section, which had previously been shown to be unconservative with respect to separation. Airfoils known to be conservative should be used for inboard sections subject to nacelle and fuselage interference.
Date:
November 1942
Creator:
Abbott, Ira H.
Object Type:
Report
System:
The UNT Digital Library
The Theory and Operation of Shock-Load Ferroelectric Transducers
A report discussing "an explosive ferroelectric power supply and the experimental approach followed in determining its operating characteristics."
Date:
November 1959
Creator:
Abegg, M. T.; Kuenning, R. W.; Phelps, P. L., Jr. & Graham, H. M.
Object Type:
Report
System:
The UNT Digital Library
Interim Report on the Location of Nonsaline Uraniferous Waters Suitable for Ion-Exchange Process
From introduction: The Trace Elements Section Washington Laboratory had developed the methods used in anticipation of handling an increased volume of water analyses as this preliminary project is expanded into a full-scale investigation. The efforts of these groups were coordinated by the Trace Elements Planning and Coordination Office.
Date:
November 1952
Creator:
Aberdeen, E. J.; White, W. F.; Sherwood, A. M.; Bruce, F. L. & Ferguson, D. E.
Object Type:
Report
System:
The UNT Digital Library
Filling and Emptying Systems, Low-Lift Locks, Arkansas River Project: Hydraulic Model Investigation
Results of a hydraulic model investigation based on locks in the Arkansas River before the construction of additional locks. "Model studies of the filling and emptying system proposed for use at the low-lift locks in the Arkansas project were conducted to confirm the adequacy of the original design hydraulic system, and to develop, if needed, improvements in the system" (p. 2).
Date:
November 1966
Creator:
Ables, Jackson H., Jr. & Boyd, M. B.
Object Type:
Report
System:
The UNT Digital Library
Handbook of Mathematical Functions With Formulas, Graphs, and Mathematical Tables
A handbook of mathematical functions that is designed to provide scientific investigations with a comprehensive and self-contained summary of the mathematical functions that arise in physical and engineering problems.
Date:
November 1967
Creator:
Abramowitz, Milton & Stegun, Irene A.
Object Type:
Report
System:
The UNT Digital Library
Accelerations in fighter-airplane crashes
From Introduction: "This report describes some measurements of these quantities obtained by crashing fighter aircraft under circumstances approximating those observed in service."
Date:
November 4, 1957
Creator:
Acker, Loren W.; Black, Dugald O. & Moser, Jacob C.
Object Type:
Report
System:
The UNT Digital Library
High-speed wind tunnels
Wind tunnel construction and design is discussed especially in relation to subsonic and supersonic speeds. Reynolds Numbers and the theory of compressible flows are also taken into consideration in designing new tunnels.
Date:
November 1936
Creator:
Ackeret, J.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Heat-Power Engine Operating on a Closed Cycle
"Hot-air engines with dynamic compressors and turbines offer new prospects of success through utilization of units of high efficiencies and through the employment of modern materials of great strength at high temperature. Particular consideration is given to an aerodynamic prime mover operating on a closed circuit and heated externally. Increase of the pressure level of the circulating air permits a great increase of limit load of the unit. This also affords a possibility of regulation for which the internal efficiency of the unit changes but slightly. The effect of pressure and temperature losses is investigated" (p. 1).
Date:
November 1942
Creator:
Ackeret, J. & Keller, D. C.
Object Type:
Report
System:
The UNT Digital Library
Investigations on Wings With and Without Sweepback at High Subsonic Speeds
Drag tests at zero lift have been made at Mach numbers from 0.7 to approximately 0.95 in the high speed wind tunnel of the Institute of Aerodynamics, ETH, Zurich, on a group of untapered wings of aspect ratio 3.25, having sweep angles of 0 degree and 35 degrees. For each sweep angle, a series of geometrically similar models was tested at a constant Reynolds number to provide a verification of computed tunnel blocking corrections. Tests were also made for wings having thickness ratios of 0.09 and 0.12 and the results compared with results predicted by von Karman's similarity law.
Date:
November 1951
Creator:
Ackeret, Jakob; Degen, Max & Rott, Nikolaus
Object Type:
Report
System:
The UNT Digital Library
Advanced Fuel Cell Development Progress Report: July-September 1977
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL).
Date:
November 1977
Creator:
Ackerman, J. P.; Pierce, R. D.; Nelson, P. A.; Arons, R. M.; Kinoshita, K.; Sim, J. W. et al.
Object Type:
Report
System:
The UNT Digital Library
Flying qualities of a high-performance personal-owner airplane
Report presenting an investigation to measure the flying qualities of a high-performance personal-owner airplane to investigate the possible causes of instrument flying accidents with that type of aircraft. Testing indicated that the lack of aerodynamic stall warning and rapid roll-off at the stall could contribute to stall-spin accidents with high-performance personal-owner aircraft. Results regarding the handling qualities and the control under instrument flying conditions are provided.
Date:
November 8, 1951
Creator:
Adams, James J. & Whitten, James B.
Object Type:
Report
System:
The UNT Digital Library
Removal of Radioiodine from Air-Steam Mixtures
A short-term study was made to investigate the removal of radioiodine vapor from air-steam mixtures as could occur immediately following a nuclear incident in a pressurized water reactor. Activated charcoal traps, designed to simulate a small section of a commercial charcoal canister, were tested at gas velocities of 23.9 to 74.9 ft/min over the temperature range of 75 to 118°C. The iodine removal efficiency was found to range from 99.80 to 99.4% with an average of 99.9%. One test performed at a temperature of 105°C and with gas velocity of 290 ft/min indicated that the iodine removal efficiency was reduced to 99.54%. Activated charcoal exhibits a high efficiency for iodine vapor removal under these test conditions and appears suitable for application in the decontamination of air-steam mixtures.
Date:
November 14, 1960
Creator:
Adams, R. E. & Browning, W. E. Jr.
Object Type:
Report
System:
The UNT Digital Library
Army Gas-Cooled Reactor Systems Program Quarterly Progress Report: July 1 - September 30, 1963
Report documenting the progress of the Army Gas-Cooled Reactor Systems Program to develop a mobile nuclear power plant for military field operation.
Date:
November 15, 1963
Creator:
Aerojet-General Corporation
Object Type:
Report
System:
The UNT Digital Library
Army Gas-Cooled Reactor Systems Program Quarterly Progress Report: July 1 - September 30, 1964
Report documenting the progress of the Army Gas-Cooled Reactor Systems Program to develop a mobile nuclear power plant for military field operation.
Date:
November 13, 1964
Creator:
Aerojet-General Corporation
Object Type:
Report
System:
The UNT Digital Library
The Aqueous Coordination Chemistry of Beryllium and its Relation to Fuel Processing - a Literature Survey
A survey of the aqueous coordination chemistry of beryllium is given. The possible use of coordination chemistry in the separation of beryllium from fission products is discussed, outlining methods for separation processes.
Date:
November 1962
Creator:
Aggett, J. (John)
Object Type:
Report
System:
The UNT Digital Library
Alpha Particle Radiolysis of Anion Exchange Resins
Technical report. From Abstract : "Irradiation of 'Dowex' 1, 'Permutit' S-1, and 'Permutit' SK anion exchange resins with alpha particles results in losses in ion exchange capacity and in 'apparent per cent crosslinkage'. The order of decreasing radiolytic stability for these properties in 'Permutit" SX > 'Permutit' S-1 > 'Dowex' 1."
Date:
November 1961
Creator:
Ahrens, Rolland W.
Object Type:
Report
System:
The UNT Digital Library
A Comparison of Wing Loads Measured in Flight on a Fighter-Type Airplane by Strain-Gage and Pressure Distribution Methods
Note presenting pressure distribution measurements made on the wing of a fighter-type airplane to determine the span loading and to compare center-of-pressure results with those obtained by strain-gage measurements on the same airplane during a previous flight investigation. Flight tests were all made at a pressure altitude of about 30,000 feet and covered a Mach number range from approximately 0.35 to 0.81. Results regarding additional air load, spanwise center of pressure of additional air load, basic air load distribution, and span loading during a stall and buffeting are provided.
Date:
November 1949
Creator:
Aiken, William S., Jr. & Howard, Donald A.
Object Type:
Report
System:
The UNT Digital Library
Neutron Dosimetry in and Around Human Phantoms By Use of Nuclear Track Emulsion
The power of nuclear track research emulsion as a fast neutron dosimeter is examined in the exposure of a human phantom to PuBe neutrons. Semiautomatic track scanning and high-speed data analysis obviate the major disadvantages of this dosimeter, and allow the following basic information to be obtained without a serious cost in time: the rulative proton recoil energy spectrum, the absolute differential proton track den sity spectrum, and the average proton recoil energy at various locations in the phantom. From this are calculated the total absorbed local tissue doze due is proton recoils, the local thermal neutron intensity, and that portion of the tissue doze due to thermal [formula] tracks.
Date:
November 30, 1961
Creator:
Akagi, Hiroaki & Lehman, Richard L.
Object Type:
Report
System:
The UNT Digital Library
Flight Investigation to Determine the Aerodynamic Characteristics of Rocket-Powered Models Representative of a Fighter-Type Airplane Configuration Incorporating an Inverse-Taper Wing and a Vee Tail
From Summary: "Two rocket-powered models representative of a fighter-type airplane were investigated in flight at Mach numbers up to 1.01 and 1.07 by the Langley Pilotless Aircraft Research Division at its testing station at Wallops Island, Va. These models incorporated an inverse-taper wing and a vee tail and were flown with controls undeflected and wing and stabilizer set at 0 deg incidence. Values of lateral acceleration, normal acceleration velocity, and drag were obtained by use of telemeters and a Doppler velocimeter radar unit."
Date:
November 2, 1948
Creator:
Alexander, Sidney R.
Object Type:
Report
System:
The UNT Digital Library
Polarographic Determination of Hexone
The following report describes polarographic methods that determine saturated aliphatic carbonyl compounds.
Date:
November 10, 1949
Creator:
Alkire, George J.
Object Type:
Report
System:
The UNT Digital Library
Estimation of the forces and moments acting on inclined bodies of revolution of high fineness ratio
Report presenting a discussion of the aerodynamic forces and moments on inclined bodies of revolution. An approximate theory to allow for the effects of viscosity is developed and applied. Results regarding the variation of lift and pitching moment, and center of gravity are provided.
Date:
November 14, 1949
Creator:
Allen, H. Julian
Object Type:
Report
System:
The UNT Digital Library
Commonwealth of the Northern Mariana Islands as a Fishing Community
From introduction and purpose: This report describes the Commonwealth of the Northern Mariana Islands (CNMI) as a fishing community. We have tried to strike a balance between the report being concise enough to be useful while covering the full range of topics and issues necessary to describe CNMI as a fishing community...This report will be updated periodically as social, economic, and environmental conditions change and fishermen and fisheries management adapt to those changes.
Date:
November 2012
Creator:
Allen, Stewart D. & Amesbury, Judith R.
Object Type:
Report
System:
The UNT Digital Library
Hot-Pressure Bonding of OMR Fuel Plates
Abstract: An alluminum-clad low-enrichment, uranium-alloy fuel element of flat plate configuration has been proposed for the Organic Moderated Reactor (OMR).
Date:
November 15, 1959
Creator:
Alm, G. V.; Binstock, M. H. & Garrett, E. E.
Object Type:
Report
System:
The UNT Digital Library