Resource Type
Serial/Series Title
United States Geological Survey Reports
357
Trace elements investigations report
195
United States Bureau of Mines Reports
178
Atomic Energy Commission Reports
112
United States Department of Energy Grand Junction Office Reports
58
NACA Research Memorandums
56
GJBX
48
National Bureau of Standards Reports
40
Argonne National Laboratory Reports
39
National Oceanic and Atmospheric Administration Reports
38
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Effect of Blade Loading of the Climb and High-Speed Performance of a Three-Blade Hamilton Standard No. 6507A-2 Propeller on a Republic P-47D Airplane
Report presenting climb and high-speed tests of a Hamilton Standard No. 6507A-2 three-blade propeller, which have been made to determine the effect of blade loading on propeller efficiency. The normal and military power climb efficiencies were found to be about equal at altitudes below 16,000 feet.
Date:
July 1945
Creator:
Gardner, John J.
Object Type:
Report
System:
The UNT Digital Library
Drag Measurements in Flight on the 10-Percent-Thick and 8-Percent-Thick Wing X-1 Airplanes
Report presenting drag measurements made on a 10-percent-thick wing and 8-percent-thick tail and a 8-percent-thick wing, 6-percent-thick tail version of the X-1 airplane at a variety of Mach numbers. The drag of the thicker wing was found to be much higher than that of the thinner wing. The fuselage was found to cause interference with the wing of both models, making the separation of wing and fuselage drag difficult to determine.
Date:
November 19, 1948
Creator:
Gardner, John J.
Object Type:
Report
System:
The UNT Digital Library
Flight Tests of a Curtiss No. 838-1C2-18 Three-Blade Propeller Having Trailing-Edge Extensions
"Flight tests to determine propeller performance have been made of a Curtiss No. 838-102-18 three-blade propeller having trailing-edge extensions on a Republic P-47D-28 airplane in climb and high speed. These tests are a part of a general propeller flight-test program at the Langley Laboratory of the National Advisory Committee for Aeronautics. Results of climb tests indicate that when power is changed from approximately 1475 horsepower at 2550 rpm (roughly normal power) to 2400 horsepower at 2700 rpm (approximately military power) there is a loss in propeller efficiency of 3 percent at an altitude of 7000 feet, and 4 percent at 21,000 feet" (p. 1).
Date:
July 16, 1947
Creator:
Gardner, John J.
Object Type:
Report
System:
The UNT Digital Library
Initial Assessment of Time of Travel and Mixing through Gulf Island Pond and the Lower Androscoggin River, Maine
From purpose and scope: The purpose of this interim report is to describe the unconventional methods required to analyze time-of-travel data in this reservoir and the regulated section of the Lower Androscoggin River.
Date:
1983
Creator:
Parker, Gene W. & Hunt, Gardner S.
Object Type:
Report
System:
The UNT Digital Library
Design and Operation of a Four-Ton-Per-Hour Gold and Silver Ore-Sampling Plant
Report issued by the U.S. Bureau of Mines discussing the operations of silver and gold ore-sampling plants. The facility designs and operation methods are presented. This report includes tables, and illustrations.
Date:
June 1936
Creator:
Gardner, E. D. & Leddell, W. A.
Object Type:
Report
System:
The UNT Digital Library
Shaft-Sinking Practices and Costs
From Introduction: "This paper describing the methods of sinking shafts is one of a series of mining practices and costs being prepared by the United States Bureau of Mines. The best methods of performing all phases of shaft sinking are discussed herein, with particular to the practices at metal mines."
Date:
1932
Creator:
Gardner, E. D. & Johnson, J. Fred
Object Type:
Report
System:
The UNT Digital Library
Reactivity in the South Spoils and Hillside Dump at the Midnite Mine
The Midnite Mine is an inactive open-pit uranium mine located on the Spokane Indian Reservation in Washington State. Drill samples from two large waste rock dumps on the site, known as South Spoils and Hillside Dump, were collected with a Becker hammer drill and evaluated to determine potential of the rock to generate acid mine drainage (AMD). Waste rock at this mine contains both pyrite and uranium, and AMD effects are more complicated on this site than most in that uranium is soluble in both acidic and neutral aqueous solutions. Although AMD protocols identified 26% of the South Spoils samples as potentially acid, under 7% of the spoil samples were actually producing acid. Considerable calcite exists in the South Spoils, and weathering feldspars further contribute to acid neutralization. The Hillside Dump has low concentrations of pyrite and calcite that acid-base accounting protocols would predict to be non-acidic. Accumulation of sulfate in rocks with concentrations of less than 0.3% S causes some of those normally non-acid producing rocks to produce acid in the Hillside Dump.
Date:
1996
Creator:
Moore, Bruce W.; Price, Jesse W. & Gardner, Ted
Object Type:
Report
System:
The UNT Digital Library
Particle Trajectories in Homogeneous Magnetic Field with Linear Time Dependence
Abstract: "Formulas are derived for the trajectory of a charged particle in a magnetic field which is a linear function of time. Graphs of certain functions are presented, by means of which a trajectory with given initial position and velocity may be plotted."
Date:
August 9, 1955
Creator:
Gardner, Clifford S.
Object Type:
Report
System:
The UNT Digital Library
Diagnostic Measurements of a Highly Ionized, Steady-state Plasma
This paper is primarily intended to give an account of a few of the diagnostic techniques that have been applied to a highly ionized, steady-state helium plasma at the Lawrence Radiation Laboratory. However, to establish a proper perspective it will first be well to describe briefly the system in which the plasma is generated and studied.
Date:
1960
Creator:
Gardner, Andrew L.
Object Type:
Report
System:
The UNT Digital Library
Mollusca From the Miocene and Lower Pliocene of Virginia and North Carolina: Part 1. Pelecypoda
Abstract: A brief sketch of the stratigraphy of the Miocene of Virginia and the Miocene and Pliocene of North Carolina was prepared by Dr. W. C. Mansfield before his death in July 1939. His purpose was "to provide a background of formational nomenclature" for the taxonomic treatment of the molluscan faunas. The physical nature and distribution of the upper Tertiary formations within those States are discussed, characteristic sections given, and diagnostic molluscan species listed. Part 1 of the systematic report covers the Pelecypoda. A monographic treatment is not attempted, but 132 previously known species are considered, and 62 new species and subspecies are described and figured.
Date:
1943
Creator:
Gardner, Julia Anna
Object Type:
Report
System:
The UNT Digital Library
Theoretical analysis of the motions of an aircraft stabilized in roll by a displacement-response, flicker-type automatic pilot
Report presenting a general analysis that allows the rolling motions of an aircraft using a displacement-response, flicker-type automatic pilot to be determined. The system is not ideal for many stabilization problems due to inherent residual oscillations, but it offers a simple and economical solution in situations in which steady state oscillations are not a problem. Results regarding some general remarks, transient and steady states, stabilization boundaries, amplitude equations, and period equations are provided.
Date:
July 7, 1948
Creator:
Curfman, Howard J., Jr. & Gardner, William N.
Object Type:
Report
System:
The UNT Digital Library
Oil-Shale Mining, Rifle, Colorado, 1944-56
From Introduction: "Detailed reports on various phases of the oil-shale mining research program have been published by the Bureau of Mines as Reports of Investigations, and numerous articles prepared by the mine staff have been published in the technical press. Summarizes of some of these publications are included in this report with other information not previously published."
Date:
1964
Creator:
East, J. H., Jr. & Gardner, E. D.
Object Type:
Report
System:
The UNT Digital Library
Flight Investigation to Determine the Hinge Moments of a Beveled-Edge Aileron on a 45 Degree Sweptback Wing at Transonic and Low Supersonic Speeds
Report discussing testing of a model of the pilotless aircraft RM-1 to measure aileron hinge moments in flight in order to determine the reason for loss of roll stabilization at supercritical speeds in flight. The aileron was found to become quickly underbalanced over the full deflection range at supercritical speeds. Information about the general flight behavior, aileron hinge moments, and roll stabilization of the model is provided.
Date:
November 12, 1947
Creator:
Gardner, William N. & Curfman, Howard J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Report on the Carpenter Ridge District, Dolores Plateau Area, Colorado
A report on the survey of ore deposits in the Carpenter Ridge District, Dolores Plateau Area, Colorado.
Date:
January 1946
Creator:
Miller, Gardner B.
Object Type:
Report
System:
The UNT Digital Library
Report on the Carpenter Ridge District, Dolores Plateau Area, Colorado: [Figures and Calculations]
Index maps, detail figures, columnar sections, and calculation tables for the Carpenter Ridge District.
Date:
April 12, 1988
Creator:
Miller, Gardner B.
Object Type:
Report
System:
The UNT Digital Library
Diffraction of Hydromagnetic Wave by a Half Plane
"In this paper we solve for the diffracted wave which results when a weak hydromegnetic shock impinges on a rigid perfectly conducting half plans."
Date:
September 30, 1960
Creator:
Gardner, Clifford S.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Barbours Creek and Shawvers Run Wilderness Study Areas, Craig County, Virginia
This report follows mineral-resource surveys taken at Barbours Creek and Shawvers Run Wilderness study areas in Craig County, Virginia. This report provides the findings of these studies, mineral deposits primarily.
Date:
1988
Creator:
Lesure, Frank Gardner
Object Type:
Report
System:
The UNT Digital Library
Mining Program: Bureau of Mines Oil-Shale Project, Rifle, Colorado
Report issued by the Bureau of Mines on the development of efficient mining methods for producing oil shale. Characteristics of the oil shale deposits of the Green River are presented. The results of core drilling and sampling in this area are also listed. This report includes tables, illustrations, maps, and photographs.
Date:
April 1948
Creator:
Gardner, E. D.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Results Obtained from Flight Test of a 1/7-Scale Rocket-Powered Model of the Grumman XF10F Airplane Configuration in the Swept-Wing Condition, TED No. NACA DE 354
"A flight investigation of a 1/7-scale rocket-powered model of the XF10F Grumman XF10F airplane in the swept-wing configuration has been made. The purpose of this test was to determine the static longitudinal stability, damping in pitch, and longitudinal control effectiveness of the airplane with the center of gravity at 20 percent of the wing mean aerodynamic chord. Only a small amount of data was obtained from the test because, immediately after booster separation at a Mach number of 0.88, the configuration was directionally unstable and diverged in sideslip" (p. 1).
Date:
1952?
Creator:
Gardner, William N.
Object Type:
Report
System:
The UNT Digital Library
BEFCYF And DBDT: IBM 704 Codes For Preparing Input For Bevatron Orbit Code (BOC)
Two IBM-704 codes have been written which are auxiliary to the Bevatron orbit code BOC. The first, BEFCYF, interpolates among tabulated values of the median-plane magnetic flux density of the Bevatron to produce an equivalent array of values in a form appropriate to BOC. The second, DBDT, produces azimuthal derivatives of the fields produced by BEFCYF. The internal operation of BEFCYF and DBDT is described, and instructions for their execution are given.
Date:
August 30, 1960
Creator:
Gardner, C. Gerald
Object Type:
Report
System:
The UNT Digital Library
The Determination of Thorium in the Presence of Uranium, Titanium and Tungsten
Abstract: "Thorium is separated from uranium, titanium and tungsten by precipitation as fluoride. The precipitate is ignited to oxide, dissolved in nitric acid, evaporated with perchloric acid, neutralized to a pH between 2.0 and 2.5 and titrated with the disodium salt of ethylene-ddiamine tetrascetic acid, using Eriochrome Cyanide as indicator. If less than 30 milligrams of thorium is present, lanthanum is added as a carrier."
Date:
1956
Creator:
Willard, Hobart H.; Mosen, Arthur. W. & Gardner, Ross D.
Object Type:
Report
System:
The UNT Digital Library
Gases from Blasting in Tunnels and Metal-Mine Drifts
From Introduction: "This paper gives the results of sampling the gases from blasting drift rounds at five mines-the United Verde Extension, Calumet & Arizona, Old Dominion, Mountain Copper, and the United Verde-and of tunnel rounds at the Big Creek water tunnel and Moffat railroad tunnel. The paper also describes the rounds blasted and the methods of sampling and analyzing the gases. In all, 99 rounds were fired and 376 samples were taken."
Date:
1927
Creator:
Gardner, E. D.; Howell, S. P. & Jones, G. W.
Object Type:
Report
System:
The UNT Digital Library
Observations on an aileron-flutter instability encountered on a 45 degree swept-back wing in transonic and supersonic flight
Report presenting a flight test of a supersonic research pilotless aircraft in which large-amplitude aileron oscillations, most likely aileron compressibility flutter, were encountered in the transonic and supersonic speed ranges. Results regarding power-on flight and coasting flight are provided.
Date:
April 11, 1947
Creator:
Pitkin, Marvin; Gardner, William N. & Curfman, Howard J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Linear Theory of Boundary Effects in Open Wind Tunnels With Finite Jet Lengths
"In the first part, the boundary conditions for an open wind tunnel (incompressible flow) are examined with special reference to the effects of the closed entrance and exit sections. In the second part, solutions are derived for four types of two-dimensional open tunnels, including one in which the pressures on the two free surfaces are not equal. In the third part, a general method is given for calculating the boundary effect in an open circular wind tunnel of finite jet length" (p. 509).
Date:
December 20, 1948
Creator:
Katzoff, S.; Gardner, Clifford S.; Diesendruck, Leo & Eisenstadt, Bertram J.
Object Type:
Report
System:
The UNT Digital Library