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Serial/Series Title
NACA Research Memorandums
364
NACA Technical Notes
184
Atomic Energy Commission Reports
122
United States Geological Survey Reports
109
Trace elements investigations report
62
Hanford Works Reports
50
University of California Radiation Laboratory Reports
44
HW (Series)
36
Oak Ridge National Laboratory Reports
28
NACA Technical Reports
22
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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
Investigation of the Use of a Stick Force Proportional to Pitching Acceleration for Normal-Acceleration Warning
Report presenting an investigation of the feasibility of modifying the transient portion of the stick force in abrupt maneuvers in order to eliminate inadvertent normal-acceleration overshoots. The modification consists of additional stick force proportional to a quantity which leads the normal acceleration. The characteristics introduced by the inclusion of the force were considered to be very desirable by pilots.
Date:
August 14, 1953
Creator:
Abramovitz, Marvin; Schmidt, Stanley F. & Van Dyke, Rudolph D., Jr.
Object Type:
Report
System:
The UNT Digital Library
Determination of Shapes of Boattail Bodies of Revolution for Minimum Wave Drag
"By use of an approximate equation for the wave drag of slender bodies of revolution in a supersonic flow field, the optimum shapes of certain boattail bodies are determined for minimum wave drag. The properties of three specific families of bodies are determined, the first family consisting of bodies having a given length and base area and a contour passing through a prescribed point between the nose and base, the second family having fixed length, base area, and maximum area, and the third family having given length, volume, and base area. The method presented is easily generalized to determine minimum-wave-drag profile shapes which have contours that must pass through any prescribed number of points" (p. 1).
Date:
August 21, 1951
Creator:
Adams, Mac C.
Object Type:
Report
System:
The UNT Digital Library
A Study of Efficiencies and Pressure Drop Characteristics of Air-Filtering Media
Removal of particles from air is discussed in terms of three classes of filtering media--air-sampling, respirator, and air-cleaning. Plots of efficiency versus filtering velocity are presented. The pressure drop characteristics of the filters are discussed in terms of initial pressure drops of the clean filters, variations in pressure drop of the individual filters, and comparison of loading rates.
Date:
August 10, 1953
Creator:
Adley, F. E.; Scott, R. H. & Gill, W. E.
Object Type:
Report
System:
The UNT Digital Library
Apparent viscosity of neutralized and concentrated raw slurry : TBP HW-no. 4 and HW flowsheet
Report describing how the neutralized aqueous waste from the TBP Metal Recovery Process will be concentrated by evaporation to minimize the requirements for underground storage tank capacity.
Date:
August 15, 1950
Creator:
Allen, A. W. & Harmon, M. K.
Object Type:
Report
System:
The UNT Digital Library
Investigation of a triangular wing in conjunction with a fuselage and horizontal tail to determine downwash and longitudinal-stability characteristics: transonic bump method
Report presenting the results of an experimental investigation of the downwash and longitudinal stability characteristics of a semispan, triangular-wing airplane model with a horizontal tail. Lift, drag, and pitching-moment data re presented for the wing-fuselage combination. Results indicated that the model with the tail on or below the wing-chord plane possessed satisfactory stability characteristics throughout the test range of lift coefficient.
Date:
August 17, 1951
Creator:
Allen, Edwin C.
Object Type:
Report
System:
The UNT Digital Library
A Study of the Motion and Aerodynamic Heating of Missiles Entering the Earth's Atmosphere at High Supersonic Speeds
From Summary: "A simplified analysis is made of the velocity and deceleration history of missiles entering the earth's atmosphere at high supersonic speeds. It is found that, in general, the gravity force is negligible compared to the aerodynamic drag force and, hence, that the trajectory is essentially a straight line. A constant drag coefficient and an exponential variation of density with altitude are assumed and generalized curves for the variation of missile speed and deceleration with altitude are obtained. A curious finding is that the maximum deceleration is independent of physical characteristics of a missile (e.g., mass, size, and drag coefficient) and is determined only by entry speed and flight-path angle, provided this deceleration occurs before impact. This provision is satisfied by missiles presently of more usual interest."
Date:
August 25, 1953
Creator:
Allen, H. Julian & Eggers, A. J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Performance characteristics of an underslung vertical-wedge inlet with porous suction at Mach numbers of 0.63 and 1.5 to 2.0
Performance characteristics of underslung vertical wedge inlet with porous suction at Mach numbers of 0.63 and 1.5 to 2.0.
Date:
August 3, 1956
Creator:
Allen, John L. & Piercy, Thomas G.
Object Type:
Report
System:
The UNT Digital Library
Performance characteristics of an underslung vertical-wedge inlet with porous suction at Mach numbers of 0.63 and 1.5 to 2.0
Report presenting testing of the performance of a ventrally mounted inlet having a variable-angle vertical-wedge compression surface determined at several Mach numbers for angles of attack, angles of yaw, and wedge angle. A solid wedge and wedges with two different porosities were tested. Results regarding the inlet flow-field survey, comparison of inlet configurations, performance of the inlet, effect of free-stream Mach number at angle of attack of 2 degrees, effect of angles of attack and yaw, diffuser total-pressure distortion, fuselage boundary-layer-removal scoop, and effective thrust comparison are provided.
Date:
August 3, 1956
Creator:
Allen, John L. & Piercy, Thomas G.
Object Type:
Report
System:
The UNT Digital Library
Gas Discharges : Lecture Series
Most books on the subject of gas discharges describe the multiple banded structure which appears in the flow between two electrodes. This structure is actually due to the difficulty in getting electrons out of the cathode to support the discharge. These electrons are obtained by having a large enough potential drop near the cathode so that the positive ions may strike it hard enough to product secondary electrons. If one substitutes a hot cathode to produce a copious quantity of electrons, the banded structure will be radially changed. Hence the banding is not a pure property of the discharge, but is a complication brought on by the presence of electrodes.
Date:
August 1951
Creator:
Allis, William P. (William Phelps), 1901-1999 & Arnold, Wayne
Object Type:
Report
System:
The UNT Digital Library
Some Dielectric Properties of Suspensions of Boron Powders in Mineral Oil
Memorandum presenting measurements of the dielectric constant for suspensions of two types of boron powder in mineral oil as a function of concentration of boron particles, moisture content, temperature, and frequency of oscillation. Also investigated were the effects of boron-powder concentration and moisture content on the dielectric losses of mineral-oil suspensions of the two boron powders.
Date:
August 18, 1955
Creator:
Altshuller, Aubrey P.
Object Type:
Report
System:
The UNT Digital Library
Comparison of the Experimental Pressure Distribution on an NACA 0012 Profile at High Speeds With That Calculated by the Relaxation Method
Note presenting pressure-distribution measurements made on a 5-inch-chord NACA 0012 airfoil at zero angle of attack in the Langley rectangular high-speed tunnel, a 4- by 18-inch closed-throat tunnel, and compared with results calculated by Emmons for an equivalent airfoil-channel configuration by using the relaxation method.
Date:
August 1950
Creator:
Amick, James L.
Object Type:
Report
System:
The UNT Digital Library
Distribution of Uranium at Low Acid : Low Uranium Concentrations into 4-1/2 Percent TBP-AMSCO
Report wherein acid free uranyl nitrate hexahydrate was distributed into 4-1/2 percent TBP-Amsco 125-90W and combined with various concentrations of acid in order to study the distribution of uranium and hydrolysis effects.
Date:
August 23, 1956
Creator:
Andelin, Robert L.; Anderson, Edward L. & McVey, W. H.
Object Type:
Report
System:
The UNT Digital Library
Drilling at Temple Mountain, San Rafael Swell, Emery County, Utah
Discussing a wagon drilling project carried out at Temple Mountain.
Date:
August 1952
Creator:
Anderson, Andrew H. & Miller, Richard D.
Object Type:
Report
System:
The UNT Digital Library
Drilling at Temple Mountain, San Rafael Swell, Emery County, Utah [Fiche]
This report describes two drilling projects that were successful in discovering ore deposits at Temple Mountain.
Date:
August 1952
Creator:
Anderson, Andrew H. & Miller, Richard D.
Object Type:
Report
System:
The UNT Digital Library
Engineering Properties of Diphenyl
Report issued by the Argonne National Laboratory discussing engineering properties of diphenyl. As stated in the abstract, "data collected from the literature on the vapor pressure, enthalpy, liquid density, and vapor density of pure diphenyl are presented. A Mollier diagram, a temperature entropy diagram, and data on viscosity of diphenyl as a function of temperature are also presented" (p. 5). This report includes tables, and illustrations.
Date:
August 11, 1953
Creator:
Anderson, Kermit
Object Type:
Report
System:
The UNT Digital Library
Charts Relating the Compressive Buckling Stress of Longitudinally Supported Plates to the Effective Deflectional and Rotational Stiffness of the Supports
Report presenting a stability analysis of a long flat rectangular plate subjected to uniform longitudinal compressive stress and support along its longitudinal edges and one or more other longitudinal lines by elastic line supports. This was performed in order to provide more information about stabilization methods for thin-wing construction. The effective stiffness of different supports and the buckling observed in different structures is provided.
Date:
August 1953
Creator:
Anderson, Roger A. & Semonian, Joseph W.
Object Type:
Report
System:
The UNT Digital Library
Some Information on the Strength of Thick-Skin Wings With Multiweb and Multipost Stabilization
Report presenting the results of strength tests on thick-skin wing structures. Some of the factors that were found to have influence on the buckling behavior and strength are shown with data and the conditions under which a combination of multiweb and multipost construction may be used are discussed. Results regarding circular-arc airfoils, multiweb beams, and multipost stiffened beams are provided.
Date:
August 27, 1953
Creator:
Anderson, Roger A.; Pride, Richard A. & Johnson, Aldie E., Jr.
Object Type:
Report
System:
The UNT Digital Library
Free-flight Investigation at Transonic Speeds of the Stability Characteristics of a Tailless Missile Configuration Having a 45 Deg Sweptback Wing of Aspect Ratio 4
Free flight test of tailless missile configuration with 45-deg sweptback wing of aspect ratio 4 - stability at transonic speeds. The longitudinal flexible-wing results indicated a gradual transonic trim change a lift-curve slope comparable with that for the same configuration with a wing of aspect ratio 5.5. Results regarding trim characteristics, lift and longitudinal stability, and side-force and lateral stability are provided.
Date:
August 28, 1956
Creator:
Arbic, Richard G.
Object Type:
Report
System:
The UNT Digital Library
Free-Flight Investigation at Transonic Speeds of the Stability Characteristics of a Tailless Missile Configuration Having a 45 Degree Sweptback Wing of Aspect Ratio 4
Memorandum presenting a flight test of a long-range missile configuration with a 45 degree sweptback wing of aspect ratio 4 conducted at a range of Mach and Reynolds numbers. The longitudinal flexible-wing results indicated a gradual transonic trim change and a lift-curve slope comparable with that for the same configuration with a wing of aspect ratio 5.5.
Date:
August 28, 1956
Creator:
Arbic, Richard G.
Object Type:
Report
System:
The UNT Digital Library
Free-Flight Longitudinal-Stability Investigation Including Some Effects of Wing Elasticity From Mach Numbers of 0.85 to 1.34 of a Tailless Missile Configuration Having a 45 Degree Sweptback Wing of Aspect Ratio 5.5
Report presenting a free-flight longitudinal-stability investigation between Mach numbers of 0.85 and 1.34 to obtain the aerodynamic characteristics of a long-range, jet-propelled, ground-to-ground missile with a wing of aspect ratio 5.5, 45 degrees of sweepback, and taper ratio 0.4 on a body with a vertical tail. Two models with two different wing materials were flown. Results regarding trimmed flight, pitching flight, and aeroelastic calculations are provided.
Date:
August 10, 1953
Creator:
Arbic, Richard G. & Gillespie, Warren, Jr.
Object Type:
Report
System:
The UNT Digital Library
Operating Manual for the Argonaut Reactor
The design of the Argonaut (Argonne Nuclear Assembly for University Training) was initiated by the Reactor Engineering Division of Argonne National Laboratory to satisfy needs for a low-power reactor facility within the Laboratory, and for training uses within the international School of Nuclear Science and Engineering (ISNSE). It was intended primarily for instruction and research in reactor physics. It was also considered as a possibility that it would fulfill the requirements of universities engaged in a program of nuclear science. The cost of the facility was to be kept to a minimum consistent with the high degree of inherent safety and a great amount of flexibility in the system. The basic design stemmed from the Knolls Atomic Power Laboratory Thermal Test Reactor* (TTR), now called Nuclear Test Reactor (NTR). Modification during the course of the work justified the new name "Argonaut".
Date:
August 1959
Creator:
Argonne National Laboratory
Object Type:
Report
System:
The UNT Digital Library
Uranium-bearing minerals in Placer Deposits of the Red River Valley, Elk City District, Idaho County, Idaho
A report about uranium bearing multiple oxide minerals first recognized in the jig-bed concentrate of the Tyee Mining Company's gold dredge on the Red River. The gravels of the placer deposits were derived from the Idaho batholith and a roof pendant of Precambrian rocks in the batholith.
Date:
August 1955
Creator:
Armstrong, F. C. & Weis, P. L.
Object Type:
Report
System:
The UNT Digital Library