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Office of Scientific & Technical Information Technical Reports
160
Congressional Research Service Reports
101
Technical Report Archive and Image Library
30
TRAIL Microcard Collection
15
National Advisory Committee for Aeronautics Collection
14
Government Accountability Office Reports
11
Harris and Eliza Kempner
6
Texas State Publications
3
John F. Kennedy Memorial Collection
2
John F. Kennedy, Dallas Police Department Collection
2
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315 Matching Results
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[Edits Made on Experimental Report by Meyer Bodansky - February 1941]
Experiment report by Dr. Meyer Bodansky, giving details of an experiment conducted over the use of chemicals in rats. Dr. Bodansky details the reaction the rats have had and their current state of health. He has also included several handwritten edits to the report and changed the date that it was written.
Date:
February 21, 1941
Creator:
Bodansky, Meyer, 1896-1941
System:
The Portal to Texas History
Calculations of the Supersonic Wave Drag of Nonlifting Wings with Arbitrary Sweepback and Aspect Ratio: Wings Swept Behind the Mach Lines
"On the basis of a recently developed theory for finite sweptback wings at supersonic speeds, calculations of the supersonic wave drag at zero lift were made for a series of wings having thin symmetrical biconvex sections with untapered plan forms and various angles of sweepback and aspect ratios. The results are presented in a unified form so that a single chart permits the direct determination of the wave drag for this family of airfoils for an extensive range of aspect ratio and sweepback angle for stream Mach numbers up to a value corresponding to that at which the Mach line coincides with the wing leading edge. The calculations showed that in general the wave-drag coefficient decreased with increasing sweepback" (p. 1).
Date:
February 21, 1947
Creator:
Harmon, Sidney M. & Swanson, Margaret D.
System:
The UNT Digital Library
Investigation of High-Performance Fuels in Multicylinder and in Single-Cylinder Engines at High and Cruising Engine Speeds
"An investigation was conducted to compare the knock-limited performance of a 20-percent triptane blend in 28-K fuel with that of 28-R and 33-R fuels at high engine speeds, cruising speeds, and two compression ratios in an K-1830-94 multicylinder engine. Data were obtained with the standard compression ratio of 6.7 and with a compression ratio of 3.0. The three fuels were investigated at engine speeds of 1800, 2250, 2600, and 2800 rpm at high and low blower ratios" (p. 1).
Date:
February 21, 1947
Creator:
Bell, Arthur H.; Nelson, R. Lee & Richard, Paul H.
System:
The UNT Digital Library
Preliminary Tests at Supersonic Speeds of Triangular and Swept-Back Wings
Report presenting testing of a series of thin, triangular plan-form wings, including eight triangular wings of vertex angles and three swept-back wings with circular-arc sections. Results regarding lift, center of pressure, and ideal operation of different types of wings are provided.
Date:
February 21, 1947
Creator:
Ellis, Macon C., Jr. & Hasel, Lowell E.
System:
The UNT Digital Library
Free-Flight Investigation of the Static and Dynamic Longitudinal Stability Characteristics of 1/3.7-Scale Rocket-Powered Models of the Bell MX-776A
"An investigation of the static and dynamic longitudinal stability characteristics of 1/3.7 scale rocket-powered model of the Bell MX-776A has been made for a Mach number range from 0.8 to 1.6. Two models were tested with all control surfaces at 0 degree deflection and centers of gravity located 1/4 and 1/2 body diameters, respectively, ahead of the equivalent design location. Both models were stable about the trim conditions but did not trim at 0 degree angle of attack because of slight constructional asymmetries" (p. 1).
Date:
February 21, 1950
Creator:
Michal, David H.
System:
The UNT Digital Library
Preparation of Ductile Zirconium: Status Report for February 20, 1950
Report discussing the status of ductile zirconium preparation by the National Research Corporation up to February 20, 1950.
Date:
February 21, 1950
Creator:
DiPietro, W. O.; Findlay, G. R. & Moore, J. H.
System:
The UNT Digital Library
Zirconium analysis
Recent attempts to displace fixed plutonium from the body by zirconium therapy have made an analytical method for the determination of zirconium in urine salts advisable. Standard chemical analytical methods for zirconium in rock were not adaptable to urine salts. The poor results obtained from these standard methods necessitated the development of a modified analytical procedure. The results of this work are reported herein.
Date:
February 21, 1950
Creator:
Thorburn, R. C.
System:
The UNT Digital Library
The effects of centrally mounted wing-tip tanks on the subsonic aerodynamic characteristics of a wing of aspect ratio 10 with 35 degrees of sweepback
Report presenting an investigation of the effects of three centrally mounted wing-tip tanks on the aerodynamic characteristics of a cambered wing with an aspect ratio of 10 and 35 degrees of sweepback. Testing occurred over a range of Mach and Reynolds numbers and lift, drag, and pitching-moment were measured.
Date:
February 21, 1951
Creator:
Tinling, Bruce E. & Kolk, W. Richard
System:
The UNT Digital Library
Preliminary flight investigation of the maneuvering accelerations and buffet boundary of a 35 degree swept-wing airplane at high altitude and transonic speeds
Report presenting the results of a series of exploratory flights on a 35 degree swept-wing airplane up to Mach number 1.09 to show the effects of compressibility on imposing maneuverability limits. Results regarding the maneuvering accelerations and buffet boundary are provided.
Date:
February 21, 1951
Creator:
Rathert, George A., Jr.; Ziff, Howard L. & Cooper, George E.
System:
The UNT Digital Library
The U²²⁷ Collateral Series
The following report describes data from the continuation of investigations which led to the observation and characterization of five artificial radioactive chains collateral to the natural radioactive families that has lead to the partial identification of one additional chain, collateral to the actinium family.
Date:
February 21, 1951
Creator:
Meinke, W. Wayne; Ghiorso, Albert & Seaborg, Glenn T.
System:
The UNT Digital Library
Experimental investigation of the vibration characteristics of four designs of turbine blades and of the effect produced by varying the axial spacing between nozzle blades and turbine blades.
An investigation was made to determine the effects of varying the spacing between the nozzle blades and the turbine blades of a turbo-jet engine on turbine-blade vibration for four turbine-blade designs of different degrees of stiffness. In general, there was a tendency toward increase in occurrence of vibration with decrease in spacing. The effect was most evident in the case of the turbine blades that had greater stiffness.
Date:
February 21, 1952
Creator:
Morgan, W. C. & Morse, C. R.
System:
The UNT Digital Library
Hanford Works Monthly Report: January 1952
This is a progress report of the production reactors on the Hanford Reservation for the month of January 1952. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date:
February 21, 1952
Creator:
Prout, G. R.
System:
The UNT Digital Library
Investigation of afterburner performance and afterburner fuel system coking of the Westinghouse XJ34-WE-32 engine
Report presenting an investigation of the performance of the Westinghouse XJ34-WE-32 engine with afterburner operative in the altitude wind tunnel at a range of simulated altitudes and Mach numbers. A study was also made to prevent the clogging of the fuel-injection holes due to coke or carbon deposits, which occurred during initial testing. Results regarding the characteristics of fuel manifold coking, influence of fuel distribution on performance, afterburner inlet conditions, effect of altitude and flight Mach number, afterburner pressure losses, and afterburner ignition and blowout are provided.
Date:
February 21, 1952
Creator:
Wallner, Lewis E. & Prince, William R.
System:
The UNT Digital Library
Process Tube Pressure - Stress Factors
This report discusses the state of stress caused by pressure in process tubes, elaborating on five "theories of failure" that each explain the stress in process tubes in a different manner. These theories, which are depicted in a graph, include maximum normal stress, maximum strain, maximum shear stress, maximum strain energy, and maximum strain energy of distortion.
Date:
February 21, 1952
Creator:
Reinker, P. H.
System:
The UNT Digital Library
Acid and Carbonate Leaching of North Jackpile Ore
None
Date:
February 21, 1955
Creator:
Jones, J.Q.; Larson, J. B.; Lynch, J. T.; Porter, E. S.; Trueman, G. & Viklund, H. I.
System:
The UNT Digital Library
[Affidavit of Directors, February 21, 1955]
Affidavit of directors report for Harris-Fort Bend Telephone Company.
Date:
February 21, 1955
Creator:
Harris-Fort Bend Telephone Company
System:
The Portal to Texas History
EFFECT OF A DENSITY GRADIENT ON TAYLOR INSTABILITY
None
Date:
February 21, 1955
Creator:
LeLevier, R.; Lasher, G. J. & Bjorklund, F.
System:
The UNT Digital Library
Hanford Atomic Products Operation monthly report, January 1955
This document presents a summary of work and progress at the Hanford Engineer Works for January 1955. The report is divided into sections by department. A plant wide general summary is included at the beginning of the report, after which the departmental summaries begin. The Manufacturing Department reports plant statistics, and summaries for the Metal Preparation, Reactor and Separation sections. The Engineering Department`s section summarizes work for the Technical Design, and Project Sections. Costs for the various departments are presented in the Financial department`s summary. The Medical, Radiological Sciences, Utilities and General Services, Employee and Public Relations, and Community Real Estate and Services departments have sections presenting their monthly statistics, work, progress, and summaries.
Date:
February 21, 1955
Creator:
unknown
System:
The UNT Digital Library
[Minutes of Special Meeting of Directors, February 21, 1955]
Minutes of Special Meeting of Directors for Harris-Fort Bend Telephone Company.
Date:
February 21, 1955
Creator:
Harris-Fort Bend Telephone Company
System:
The Portal to Texas History
[Minutes of Special Meeting of Stockholders, February 21, 1955]
Report of the minutes of special meeting of stockholders for the Harris-Fort Bend Telephone Company.
Date:
February 21, 1955
Creator:
Harris-Fort Bend Telephone Company
System:
The Portal to Texas History
Penetration of Respiratory Protective Equipment by Ruthenium at Building 202-S
The four types of respirator cartridges used at the 202 S Building were tested against aerosols found at that location, and in the laboratory against non-radioactive gaseous ruthenium tetroxide. Positive penetration of two types of cartridges was shown with one process aerosol. Gaseous ruthenium tetroxide penetrated all types of cartridges tested. Leaks were found in some of the cartridges. Particle size of aerosol particles was measured by means of cascade impactor samples and electron photomicrographs. A high percentage of the aerosol particles was found to be less than 0.2 microns in diameter. Ru¹⁰³ + Ru¹⁰⁶ and Zr⁹⁵ + Nb⁹⁵ were shown to be present in the process aerosol by gamma ray spectrometer analysis. Possible causes of penetration of respiratory equipment by ruthenium are discussed and suggestions made for alleviating the problem.
Date:
February 21, 1955
Creator:
Gill, W. E.
System:
The UNT Digital Library
The Properties of High-Uranium Alloys Containing Zirconium or Chromium
From abstract: "Various physical and mechanical properties have been determined for high- and low-carbon base uranium, uranium-chromium, and uranium-zirconium alloys. These data complement those obtained at ANL on the same materials."
Date:
February 21, 1955
Creator:
Saller, Henry A. & Rough, Frank A.
System:
The UNT Digital Library
[Waiver of Notice of Directors Meeting, February 21, 1955]
Waiver of notice of directors meeting for Harris-Fort Bend Telephone Company.
Date:
February 21, 1955
Creator:
Harris-Fort Bend Telephone Company
System:
The Portal to Texas History
[Waiver of Notice of Stockholders Meeting and Proxy, February 21, 1955]
Waiver of notice of stockholders meeting and proxy.
Date:
February 21, 1955
Creator:
Harris-Fort Bend Telephone Company
System:
The Portal to Texas History