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Technical Report Archive and Image Library
1,501
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819
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345
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338
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185
USGS Topographic Map Collection
46
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32
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24
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19
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485
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Trace elements investigations report
109
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55
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2,145 Matching Results
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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
Theoretical Investigation of the Performance of Proportional Navigation Guidance Systems-Effect of Method of Positioning the Radar Antenna on the Speed of Response
Memorandum presenting a linear theoretical analysis of the performance of three proportional navigation guidance systems installed in a given supersonic, variable-incidence, boost-glide, antiaircraft missile at Mach numbers of 2.7 and 1.3. It is shown that, with the antenna stabilized in space, the effect of component lags on the response is small, so that the speed of response is small, so that the speed of response can be made to approach closely that of the airframe alone.
Date:
August 13, 1952
Creator:
Abramovitz, Marvin
Object Type:
Report
System:
The UNT Digital Library
Theoretical Investigation of the Performance of Proportional Navigation Guidance Systems: Effect of Method of Positioning the Radar Antenna on the Speed of Response
Memorandum presenting a linear theoretical analysis made of the performance of three proportional navigation guidance systems installed in a given supersonic, variable-incidence, boost-glide, antiaircraft missile at Mach numbers of 2.7 and 1.3. Three guidance systems are compared on the basis of the maximum obtainable speed of response of the missile and guidance-system combination consistent with adequate stability. Results regarding the effect of method of positioning the radar antenna on the speed of response, effect of Mach number on response, and effect of networks are provided.
Date:
August 13, 1952
Creator:
Abramovitz, Marvin
Object Type:
Report
System:
The UNT Digital Library
Theoretical Investigation of the Effects of the Artificial-Feel System on the Maneuvering Characteristics of the F-89 Airplane
The possibility of overshooting the anticipated normal acceleration as a result of the artificial-feel characteristics of the F-89C airplane at a condition of minimum static stability was investigated analytically by means of an electronic simulator. Several methods of improving the stick-force characteristics were studied. It is shown that, due to the lag in build-up of the portion of the stick force introduced by the bobweight, it would be possible for excessive overshoots of normal acceleration to occur in abrupt maneuvers with reasonable assumed control movements. The addition of a transient stick force proportional to pitching acceleration (which leads the normal acceleration) to prevent this occurring would not be practical due to the introduction of an oscillatory mode to the stick-position response. A device to introduce a viscous damping force would Improve the stick-force characteristics so that normal acceleration overshoots would not be likely, and the variation of the maximum stick force in rapid pulse-type maneuvers with duration of the maneuver then would have a favorable trend.
Date:
December 31, 1952
Creator:
Abramovitz, Marvin; Schmidt, Stanley F. & Belsley, Steven E.
Object Type:
Report
System:
The UNT Digital Library
Investigation of internal film cooling of exhaust nozzle of a 1000-pound-thrust liquid-ammonia liquid-oxygen rocket
Report presenting an investigation of internal film cooling of the exhaust nozzle of a 1000-pound-thrust liquid ammonia liquid-oxygen rocket engine. With water as a coolant, approximately 16 percent of the total propellant and coolant flow was required to film-cool the entire nozzle and with anhydrous liquid ammonia, approximately 19 percent of the total flow was required. Results regarding the coolant results and performance results are provided.
Date:
June 17, 1952
Creator:
Abramson, Andrew E.
Object Type:
Report
System:
The UNT Digital Library
Theoretical Damping in Roll and Rolling Moment Due to Differential Wing Incidence for Slender Cruciform Wings and Wing-Body Combinations
"A method of analysis based on slender-wing theory is developed to investigate the characteristics in roll of slender cruciform wings and wing-body combinations. The method makes use of the conformal mapping processes of classical hydrodynamics which transform the region outside a circle and the region outside an arbitrary arrangement of line segments intersecting at the origin. The method of analysis may be utilized to solve other slender cruciform wing-body problems involving arbitrarily assigned boundary conditions" (p. 1).
Date:
1952
Creator:
Adams, Gaynor J. & Dugan, Duane W.
Object Type:
Report
System:
The UNT Digital Library
The Uranium of the Lavas of Lassen Volcanic National Park, California
None
Date:
January 1, 1952
Creator:
Adams, J. A. S. & Saunders, D. F.
Object Type:
Report
System:
The UNT Digital Library
Tests of a centering spring used as an artificial feel device on the elevator of a fighter airplane
Report presenting tests to investigate the use of a simple centering spring, which had no variation of force gradient with impact pressure, as an artificial feel device for the elevator control of a fighter airplane. Testing was conducted using a Chance Vought F4U-4B airplane equipped with power controls. Results regarding the force experienced and effects of the feel system are provided.
Date:
September 12, 1952
Creator:
Adams, James J. & Whitten, James B.
Object Type:
Report
System:
The UNT Digital Library
Three Group Equations for a Multiplying Medium
In the past it was felt that the easiest way to treat a three group equation for a MTA lattice was to solve it without certain terms. This iterative procedure converged rapidly for a medium with depleted uranium fuel, and in fact, a second iteration was not needed.
Date:
June 11, 1952
Creator:
Adelman, F. L.
Object Type:
Report
System:
The UNT Digital Library
Energy Spectrum of Neutrons from 3-10 MEV
The energy distributions of neutrons in the 3-10 Mev energy range resulting from the bombardment of thin U targets are being investigated by the measurement of proton recoils in photographic plates.
Date:
February 11, 1952
Creator:
Adelman, Frank
Object Type:
Report
System:
The UNT Digital Library
Study of Atmospheric Contamination in the Melt Plant Building
None
Date:
April 1, 1952
Creator:
Adley, F. E.; Gill, W. E. & Scott, R. H.
Object Type:
Report
System:
The UNT Digital Library
Recommendations for exploration drilling, Lower Wild Horse Point, San Rafael Swell, Emery County, Utah
The purpose of the investigation was to locate new uranium ore deposits and sites which are favorable for exploration drilling.
Date:
December 15, 1952
Creator:
Akright, Robert L.
Object Type:
Report
System:
The UNT Digital Library
An anticoincidence gamma ray scintillation spectrometer
From abstract: "A new type of scintillation spectrometer is described. It is designed to suppress signals arising from incident photons that are not completely absorbed in the primary detecting NaI(T1) crystal."
Date:
1952
Creator:
Albert, Richard D.
Object Type:
Report
System:
The UNT Digital Library
Mechanical development studies technical activities report, July 1952
Described herein are studies on pile control, shielding, process tube assembly, pile operating equipment, pile renovation, power recovery, pile piping and the 189-D test laboratory at Hanford.
Date:
August 12, 1952
Creator:
Alexander, W. K.
Object Type:
Report
System:
The UNT Digital Library
Technical activities report: Mechanical development studies
This monthly progress report covers activities in the following areas: pile control; shielding studies; process tube assembly; pile operating equipment; power recovery; pile piping; and test laboratory. A detailed discussion is given for each topic.
Date:
May 1, 1952
Creator:
Alexander, W. K.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation of the Static Longitudinal Stability Characteristics of a 0.15-Scale Model of the Hermes A-1E2 Missile at High Subsonic Mach Numbers
"The static longitudinal stability characteristics of a 0.15-scale model of the Hermes A-lE2 missile have been determined in the Langley high-speed 7- by 10-foot tunnel over a Mach number range of 0.50 to 0.98, corresponding to Reynolds numbers, based on body length, of 12.3 x 10(exp 6) to 17.1 x 10(exp 6). This paper presents results obtained with body alone and body-fins combinations at 0 degrees (one set of fins vertical and the other set horizontal) and 45 degree angle of roll. The results indicate that the addition of the fins to the body insures static longitudinal stability and provides essentially linear variations of the lift and pitching moment at small angles of attack throughout the Mach number range" (p. 1).
Date:
September 11, 1952
Creator:
Alford, William J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Small-Scale Transonic Investigation of the Effects of Partial-Span Leading-Edge Camber on the Aerodynamic Characteristics of a 50 Degree 38' Sweptback Wing of Aspect Ratio 2.98
"A small-scale transonic investigation of two semispan wings of the same plan form was made in the Langley high-speed 7- by 10-foot tunnel through a Mach number range of 0.70 to 1.10 and a mean-test Reynolds number range of 745,000 to 845,000 to determine the effects of partial-span leading-edge camber on the aerodynamic characteristics of a swept-back wing. This paper presents the results of the investigation of wing-alone and wing-fuselage configurations of the two wings; one, was an uncambered wing and the other had the forward 45 percent of the chord cambered over the outboard 55 percent of the span. The semispan wings had 50deg 38ft sweepback of their quarter-chord lines, aspect ratio of 2.98, taper ratio of 0.45, and modified NACA 64A-series airfoil sections tapered in thickness ratio" (p. 1).
Date:
June 23, 1952
Creator:
Alford, William J., Jr. & Byrnes, Andrew L., Jr.
Object Type:
Report
System:
The UNT Digital Library
Control of Metallurgical and mineral dusts and fumes in Los Angeles County, California
Report issued by the U.S. Bureau of Mines discussing metallurgical and mineral fumes and dusts in Los Angeles County, California. Properties of dusts and fumes from different minerals are presented. This report includes tables, maps, illustrations, and photographs.
Date:
April 1952
Creator:
Allen, Glenn L.; Viets, Floyd H. & McCabe, Louis C.
Object Type:
Report
System:
The UNT Digital Library
Performance Characteristics at Mach Numbers to 2.0 of Various Types of Side Inlets Mounted on Fuselage of Proposed Supersonic Airplane 2: Inlets Utilizing Half of a Conical Spike
Report presenting an investigation to determine the performance of twin-scoop side inlets mounted on the fuselage of a proposed supersonic aircraft. The inlets had half of a conical spike as the compression surface and a ram-type boundary-layer-removal system. Results regarding the first inlet and redesigned inlet are provided.
Date:
September 4, 1952
Creator:
Allen, J. L. & Simon, P. C.
Object Type:
Report
System:
The UNT Digital Library
Summary of Work on the Mineralogy and Petrography of Southeast Phosphates Through April 1952
From abstract: "In this report the mineralogy and uranium contents of southeast phosphates are discussed with reference to the lithologic units of the Hawthorn and Bone Valley formations and to waste slimes. In addition, the immediate problem of sampling leached-zone rock for process development studies is discussed and plans for future work (fiscal 1953) are presented."
Date:
November 1952
Creator:
Altschuler, Z. S.
Object Type:
Report
System:
The UNT Digital Library
Interim Report on Exploration in the Yellow Cat Area, Grand County, Utah
From introduction: This report summarizes the results of diamond-drill and wagon-drill exploration by the U. S. Geological Survey in the Yellow Cat area from October 9, 1951, to May 22, 1952. The Yellow Cat area is about 10 miles southeast of Thompsons, Grand County, Utah. It is accessable by two graded roads which leave U. S. Highway 50 at points 5 miles east of Thompsons and 7 miles west of Cisco, Utah. A sampling plant and purchasing depot, belonging to the United States Vanadium Co., is at Thompsons. The explored ground includes about 8 square miles principally in T. 22 S., R. 22 E., and the northern part of T. 23 S., R. 22 E., Salt Lake meridian (fig. 1). Altitudes in the area range from about 4, 600 feet to 5, 100 feet (datum is assumed but is approximately correct), and the relief is moderate.
Date:
September 1952
Creator:
Alvord, Donald C.
Object Type:
Report
System:
The UNT Digital Library
Progress Report For January 16, 1952 - March 15, 1952
This report deals with laboratory and field work on problems connected with uranium ore processing and concentration. Analytical developments and production results are reported.
Date:
1952
Creator:
American Cyanamid Company
Object Type:
Report
System:
The UNT Digital Library
Progress Report For November 16, 1951 - January 15, 1952
This progress report describes the final tests on ore samples from the Belgian Congo. Leaching, precipitation and ion exchange testing was continued on ore samples and leach liquors from Radium Hill (South Australia), Temple Mountain, Lukachukai, and Rand. Test work on uranium recovery from residues remaining after HF production from Utah Fluorite ore samples was completed. Additional test results are also presented.
Date:
1952
Creator:
American Cyanamid Company
Object Type:
Report
System:
The UNT Digital Library
A Method of Selecting the Thickness, Hollowness, and Size of a Supersonic Wing for Least Drag and Sufficient Bending Strength at Specified Flight Conditions
Note presenting a consideration of a wing-selection problem sometimes encountered in the preliminary design of supersonic airplanes and missiles. The problem is to determine the span, section thickness ratio, and skin thickness or hollowness ratio of the wing of least drag when the plan form, section shape, wing lift requirement, and flight conditions are assumed known. An example of the application of the method to a diamond wing at Mach number 2.0 for a range of specified flight conditions is presented.
Date:
July 1952
Creator:
Amick, James L.
Object Type:
Report
System:
The UNT Digital Library