Resource Type
Collection
Technical Report Archive and Image Library
97
National Advisory Committee for Aeronautics Collection
84
Texas Attorney General Opinions
59
TRAIL Microcard Collection
9
Office of Scientific & Technical Information Technical Reports
7
Government Documents A to Z Digitization Project
1
Texas State Publications
1
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NACA Research Memorandums
39
NACA Technical Notes
31
NACA Technical Memorandums
12
Atomic Energy Commission Reports
9
MDDC (Series)
2
NACA Technical Reports
2
Report of investigations (United States. Bureau of Mines)
2
United States Bureau of Mines Reports
2
Brookhaven National Laboratory Reports
1
Texas Game and Fish
1
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165 Matching Results
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145 - 165 of
165
Present Investigations of Radioactive Raw Materials by the Geological Survey and a Recommended Program for Future Work
From abstract: "The Geological Survey's program of investigation of radioactive raw materials is presented herewith under present investigations, plans for future investigations, plan of operation, and cost of operation. This report was prepared at the request of the Atomic Energy Commission."
Date:
April 1947
Creator:
Butler, A. P., Jr. & Stead, F. W.
Object Type:
Report
System:
The UNT Digital Library
Purification of Uranium Tetrachloride by Fractional Condensation
"The effect of a single vacuum sublimation of contaminated uranium tetrachloride, with fractional condensation of the vapors, was investigated to determine whether a high degree of purity would result. It was found that this procedure was an excellent and simple method for obtaining exceedingly pure uranium tetrachloride."
Date:
April 1, 1947
Creator:
Young, H. S. & Susano, C. D.
Object Type:
Report
System:
The UNT Digital Library
Reactivity of Dibutyl Carbitol
Report discussing experiments to determine if the tri-ether (referred to in the report as dibutyl carbitol or carbitol) "was susceptible of a high degree of reactivity when used as an extraction agent for the removal of uranium from aqueous solutions."
Date:
April 1, 1947
Creator:
Susano, C. D.
Object Type:
Report
System:
The UNT Digital Library
Recent Results on High-Pressure Axial Blowers
"Considerable progress has, in recent times, been attained in the development of the high-pressure axial blower by well-planned research. The efforts are directed toward improving the efficiencies, which are already high for the axial blower, and in particular the delivery pressure heads. For high pressures multistage arrangements are used. Of fundamental importance is the careful design of all structural parts of the blower that are subject to the effects of the flow. In the present report, several recent results and experiences are reported, which are based on results of German engine research" (p. 1).
Date:
April 1947
Creator:
Eckert, B.
Object Type:
Report
System:
The UNT Digital Library
Rockets Using Liquid Oxygen
"It is my task to discuss rocket propulsion using liquid oxygen and my treatment must be highly condensed for the ideas and experiments pertaining to this classic type of rocket are so numerous that one could occupy a whole morning with a detailed presentation. First, with regard to oxygen itself as compared with competing oxygen carriers, it is known that the liquid state of oxygen, in spite of the low boiling point, is more advantageous than the gaseous form of oxygen in pressure tanks, therefore only liquid oxygen need be compared with the oxygen carriers. The advantages of liquid oxygen are absolute purity and unlimited availability at relatively small cost in energy" (p. 1).
Date:
April 1947
Creator:
Busemann, Adolf
Object Type:
Report
System:
The UNT Digital Library
Sideslip angles and vertical-tail loads in rolling pull-out maneuvers
Report presenting expressions for calculating the sideslip angles in certain maneuvers and numerical solutions for a wide enough range of variables to permit construction of design charts. Results regarding a comparison of flight and theoretical data and vertical-tail loads are provided.
Date:
April 1947
Creator:
White, Maurice D.; Lomax, Harvard & Turner, Howard L.
Object Type:
Report
System:
The UNT Digital Library
Some Recent Contributions to the Study of Transition and Turbulent Boundary Layers
Report presenting a paper in two parts about transition and turbulent boundary layers. The first part reviews the current problem of the instability of laminar boundary layers. The second part reviews the current state of knowledge of the mechanics of turbulent boundary layers and of the methods now being used for fundamental studies of the turbulent fluctuations in turbulent boundary layers.
Date:
April 1947
Creator:
Dryden, Hugh L.
Object Type:
Report
System:
The UNT Digital Library
Special Studies of Reservoir Oils in Naval Petroleum Reserve No. 1, Elk Hills Field, California
Report from the U.S. Bureau of Mines on studies conducted on the reservoir oils of Elk Hills field. Methods and instrumentation used in the studies are presented. This report includes tables, graphs, and maps.
Date:
April 1947
Creator:
Cook, Alton B. & Shea, G. B.
Object Type:
Report
System:
The UNT Digital Library
A spectrophotometric method for identification and estimation of alkylnaphthalenic-type hydrocarbons in kerosene
Report presenting a spectrophotometric method for identifying and estimating approximate amounts of naphthalenic-type hydrocarbons, which is suitable for finding differences in the naphthalenic content of kerosene fractions in petroleum.
Date:
April 1947
Creator:
Cleaves, Alden P. & Carver, Mildred S.
Object Type:
Report
System:
The UNT Digital Library
A Study of Piston-Ring Friction
Note presenting a series of tests made with a special engine equipped with a crosshead and an elastically mounted combustion cylinder. The apparatus permitted the isolation and measurement of the friction forces existing between the piston rings and the cylinder wall during operation of the engine.
Date:
April 1947
Creator:
Livengood, James C. & Wallour, Chapin
Object Type:
Report
System:
The UNT Digital Library
Systematic Wind-Tunnel Measurements on a Laminar Wing With Nose Flap
"Results of measurements are given as a supplement to earlier tests for a laminar profile with nose flap; magnitude, form, and angle of attack of the flap were systematically changed. The experiments were carried out at an effective Reynolds number of 8.2 x 10(exp 5). A comparison with measurements on other profiles shows that the effect of a nose flap is essentially dependent upon magnitude of the nose radius coefficient of the profile" (p. 1).
Date:
April 1947
Creator:
Krueger, W.
Object Type:
Report
System:
The UNT Digital Library
Texas Attorney General Opinion: V-111
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Constitutionality of House Bill No. 60, Fiftieth Legislature.
Date:
April 1, 1947
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: V-116
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Legality of disposition of certain National Guard "Unit Property."
Date:
April 1, 1947
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: V-117
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Legality of a school trustee's nephew's wife being employed as teacher in the school under the Nepotism Statute.
Date:
April 1, 1947
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Game and Fish, Volume 5, Number 5, April 1947
Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
April 1947
Creator:
Texas. Game and Fish Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Variation of Hydrodynamic Impact Loads With Flight-Path Angle for a Prismatic Float at 0 and -3 Degree Trim and With a 22 1/2 Degree Angle of Dead Rise
Report presenting testing on a prismatic float model to determine the relationship between the vertical landing acceleration and flight-path angle for seaplanes landing in smooth water. Results regarding the maximum load factor, maximum impact normal acceleration, pressures, and stability of landings are provided.
Date:
April 1947
Creator:
Batterson, Sidney A.
Object Type:
Report
System:
The UNT Digital Library
Velocity distributions on two-dimensional wing-duct inlets by conformal mapping
The conformal-mapping method of the Cartesian mapping function is applied to the determination of the velocity distribution on arbitrary two-dimensional duct-inlet shapes such as are used in wing installations. An idealized form of the actual wing-duct inlet is analyzed. The effects of leading edge stagger, inlet-velocity ratio, and section lift coefficients on the velocity distribution are included in the analysis. Numerical examples are given and, in part, compared with experimental data.
Date:
April 1, 1947
Creator:
Perl, W. & Moses, H. E.
Object Type:
Report
System:
The UNT Digital Library
Wind-tunnel investigation of control-surface characteristics of plain and balanced flaps with several trailing-edge angles on a NACA 0009 tapered semispan wing
Report presenting force tests in the 4 by 6 foot vertical tunnel to determine the aerodynamic characteristics of an NACA 0009 tapered semispan wing equipped with a plain and a balanced flap with three different included angles on the trailing edge. Results regarding lift, hinge moment, drag, pitching moment, and a comparison of calculated values with experimental values of finite-wing characteristics are provided.
Date:
April 1947
Creator:
Hoggard, H. Page, Jr. & McKinney, Elizabeth G.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation of Icing of an Engine Cooling-Fan Installation
Note presenting an investigation of the icing characteristics and means of ice protection of a typical radial-engine cooling-fan installation. The investigation was made at various icing and performance conditions in the icing research tunnel of the NACA Cleveland laboratory. The icing of the unprotected cooling-fan installation was found to present a serious operation problem.
Date:
April 1947
Creator:
Lewis, James P.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation of Icing of an Engine Cooling-Fan Installation
Note presenting an investigation of the icing characteristics and means of ice protection of a typical radial-engine cooling-fan installation. The icing of the unprotected cooling-fan installation was found to present a serious operational problem. Results regarding icing, steam heat de-icing, alcohol de-icing, and electrical heat de-icing are provided.
Date:
April 1947
Creator:
Lewis, James P.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation of the Effect of Power and Flaps on the Static Longitudinal Stability Characteristics of a Single-Engine Low-Wing Airplane Model
Note presenting testing to determine the longitudinal stability characteristics with and without power of a typical low-wing, single-engine airplane model with flaps neutral, with a full-span single slotted flap, and with a full-span double slotted flap. With flaps deflected, lift increments were increased by 0.16 for the single slotted flap and 0.42 for the double slotted flap when power was applied. Results regarding lift characteristics, landing characteristics, longitudinal stability, and longitudinal control and trim are provided.
Date:
April 1947
Creator:
Wallace, Arthur R.; Rossi, Peter F. & Wells, Evalyn G.
Object Type:
Report
System:
The UNT Digital Library