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Revision of the Wood Rats of the Genus Neotoma

Description: From introduction: "Result of a study of the wood rats in the collection of the Biological Survey, numbering over 3,000 specimens, including topotypes of most of the species."
Date: October 19, 1910
Creator: Goldman, Edward A.
Partner: UNT Libraries Government Documents Department
open access

Effective Gust Structure at Low Altitudes as Determined From the Reactions of an Airplane

Description: "Measurements of gust structure and gust intensity were made in the lower levels of the atmosphere (0 to 3,500 ft.). An Aeronca C-2 airplane was used as the measuring instrument, the gust structure being derived from the recorded motions of the airplane. Data were also obtained on wind velocities and temperatures as functions of altitude for use in attempting to correlate the gust-structure data with various meteorological quantities" (p. 263).
Date: October 19, 1939
Creator: Donely, Philip
Partner: UNT Libraries Government Documents Department
open access

Résumé of NACA Stability and Control Tests of the Bell P-63 Series Airplane

Description: Report on stability and control tests of the Bell P-63 series airplanes. Information about the spin characteristics, lateral control characteristics, longitudinal stability and control characteristics and directional stability and control characteristics is provided. A chronology of testing and detailed description of the airplane and its modifications are also provided.
Date: October 19, 1944
Creator: Johnson, Harold I.
Partner: UNT Libraries Government Documents Department
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A Flight Investigation of the Ice-Prevention Requirements of the United States Naval K-Type Airship

Description: Report discussing a research program to investigate ice prevention and elimination on airships in order to develop suitable airship ice-prevention equipment. A Naval K-type airship was equipped with photographic and meteorological tools in order to record ice formation and the propellers were outfitted with electrically heated blade shoes. Testing discovered that an airship can be flown successfully in wet snow and freezing rain with only the propellers and induction systems protected from the … more
Date: October 19, 1945
Creator: Hillendahl, Wesley H.
Partner: UNT Libraries Government Documents Department
open access

Summary report on the high-speed characteristics of six model wings having NACA 65(sub1)-series sections

Description: A summary of the results of wind-tunnel tests to determine the high-speed aerodynamic characteristics of six model wings having NACA 65sub1-series sections is presented in this report. The 8-percent-thick wings were superior to the 10-percent and 12-percent-thick wings from the standpoint of power economy during level flight for Mach numbers above 0.76. However, airplanes that are to fly at Mach numbers below 0.76 will gain aerodynamically if the percentage thickness of the wing and the aspect … more
Date: October 19, 1945
Creator: Hamilton, William T. & Nelson, Warren H.
Partner: UNT Libraries Government Documents Department
open access

Drilling of 107-F Test Well

Description: No Description Available.
Date: October 19, 1948
Creator: Brown, R. E.
Partner: UNT Libraries Government Documents Department
open access

An Experimental Investigation at Large Scale of Several Configurations of an NACA Submerged Air Intake

Description: "An investigation of an NACA submerged air intake was conducted on a full-scale model of a fighter-type airplane. This study was made to determine the large-scale aerodynamic characteristics of a submerged air intake proposed as the result of small-scale tests and to compare the pressure-recovery characteristics of the large- and small-scale installations. Additional tests were made to determine the effect on pressure recovery of a systematic variation of ramp divergence" (p. 1).
Date: October 19, 1948
Creator: Martin, Norman J. & Holzhauser, Curt A.
Partner: UNT Libraries Government Documents Department
open access

Investigation at a Mach Number of 1.93 to Determine Lift, Drag, Pitching-Moment, and Average Downwash Characteristics for Several Missile Configurations Having Rectangular Wings and Tails of Various Spans

Description: Memorandum presenting an investigation made at a Mach number of 1.93 to determine lift, drag, pitching-moment, and average downwash characteristics of several missile configurations. Five configurations with rectangular wings and tails of various spans were tested; each of the configurations had two locations of the wing relative to the tail.
Date: October 19, 1950
Creator: Grigsby, Carl E.
Partner: UNT Libraries Government Documents Department
open access

Theoretical Investigation of a Proportional-Plus-Flicker Automatic Pilot

Description: "The proportional-plus-flicker automatic pilot operates by a nonlinear principle whereby a fast-acting flicker servomotor response is combined with a low-speed proportional servomotor response for the purpose of obtaining supersonic stability and control. Essentially, the autopilot maintains a zero reference about which the output is proportional to the input. However, a flicker response overrides this proportional response at a fixed angle of gimbal displacement on either side of the zero gyro… more
Date: October 19, 1950
Creator: Seaberg, Ernest C.
Partner: UNT Libraries Government Documents Department
open access

Hanford works monthly report, September 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of September 1951. 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: October 19, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department
open access

REACTION RATE OF SOLID SODIUM WITH AIR

Description: No Description Available.
Date: October 19, 1953
Creator: Howland, W.H. & Epstein, L.F.
Partner: UNT Libraries Government Documents Department
open access

Atomic Energy Levels for the Thomas-Fermi and Thomas-Fermi-Dirac Potential

Description: Some term values for circular orbits and for the 5f level have been determined by previous investigators with this potential, but a general exploration of the results to be obtained has not previously been carried out. The results of such an exploration will be presented here for the isolated, zero-temperature atom for all atomic numbers and for the one-electron term values from 1e to 7d.
Date: October 19, 1954
Creator: Latter, Richard
Partner: UNT Libraries Government Documents Department
open access

Heat Transfer Characteristics of Graphite Plates with Hydrogen Coolant

Description: "This note presents the results of a parametric study of heat-generating graphite plates with hydrogen coolant flowing through constant area passages. The heat generation within the graphite was assumed to have a distribution that allowed the centerline temperature of the plates to remain constant at 5000 F. The parametric variables were the mass flow rate per unit area, plate thickness, plate length, and passage hydraulic diameter. The machine calculations were coded by Ivan Cherry, T-1."
Date: October 19, 1955
Creator: Bussard, R. W. & Durham, F. P.
Partner: UNT Libraries Government Documents Department
open access

Observation of Antiprotons

Description: One of the striking features of Dirac's theory of the electron was the appearance of solutions to his equations which required the existence of an antiparticle, later identified as the positron.
Date: October 19, 1955
Creator: Chamberlain, Owen; Segre, Emilio; Wiegand, Clyde & Ypsilantis, Thomas
Partner: UNT Libraries Government Documents Department
open access

Effect of Blade-Section Camber on Aerodynamic Characteristics of Full-Scale Supersonic-Type Propellers at Mach Numbers to 1.04

Description: Report presenting an investigation of the aerodynamic characteristics of two full-scale supersonic propellers with a 6000-horsepower propeller dynamometer. One propeller had symmetrical NACA 16-series airfoil sections and the other was similar except for a blade-section camber and a slight difference in pitch distribution.
Date: October 19, 1956
Creator: Maynard, Julian D.; Swihart, John M. & Norton, Harry T., Jr.
Partner: UNT Libraries Government Documents Department
open access

Effect of Camber on the Drag of a Body of Revolution

Description: Memorandum presenting an investigation to determine the effect of camber on the drag of a body of revolution. The drag of a straight body of revolution was measured and compared with that of a body that differed only in that its center line was cambered in the form of a parabola. The addition of a small amount of camber was found to cause very little increase in the minimum foredrag of the model tested.
Date: October 19, 1956
Creator: Dickey, Robert R.
Partner: UNT Libraries Government Documents Department
open access

Frequency Response Analysis of HRT Mockup Pressurizer-Level Control Loop

Description: The HRT Mockup is a complete working model of the HRT designed to test various reactor components and controls under anticipated operating conditions with non-radioactive solution. The stability and response characteristics of the HRT Mockup Pressurizer-Level Control Loop as well as the effectiveness of pneumatic damping units have been investigated and are presented in this report.
Date: October 19, 1956
Creator: Gelman, Ralph & Robertson, Charles S. Jr.
Partner: UNT Libraries Government Documents Department
open access

Hanford Laboratories Operation monthly activities report, September 1956

Description: This is the monthly report for the Hanford Laboratories Operation. Metallurgy, reactor fuels, physics and instrumentation, reactor technology, chemistry, separation processes, biology, financial activities, employee relations, laboratories auxiliaries, radiation protection, operation research, inventions, visits, and personnel status are discussed. This report is for September 1956.
Date: October 19, 1956
Partner: UNT Libraries Government Documents Department
open access

Processing E-metal in the 200 Areas

Description: This report discusses current plans of the Irradiation Processing Department which call for the inauguration of an E-metal (0.94% U-235) replacement program for the C-metal columns now in reactor use. Other reactor planning is considering the use of E-metal for E-N (lithium) nd E-Co (cobalt) loadings, compensation for reactor biological shields, and for the improved production reactor (IPR). Activation of any of these plans will be dependent on results of the test programs and A.E.C. policy dec… more
Date: October 19, 1956
Creator: Platt, A. M. & Tomlinson, R. E.
Partner: UNT Libraries Government Documents Department
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