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Office of Scientific & Technical Information Technical Reports
312
Texas Laws and Resolutions Archive
166
Congressional Research Service Reports
79
Government Accountability Office Reports
53
Technical Report Archive and Image Library
48
Texas Patents
45
Texas Attorney General Opinions
39
National Advisory Committee for Aeronautics Collection
26
TRAIL Microcard Collection
18
Defense Base Closure and Realignment Commission
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Flight measurements of wing loads on the Convair XF-92A delta-wing airplane
Report presenting a flight investigation at a range of altitudes to determine the wing loads on the Convair XF-92A airplane over the lift range of the airplane at subsonic and transonic speeds. Theoretical lift-curve slope for a delta wing was calculated and compared with the flight data at a Mach number of 0.75.
Date:
May 25, 1955
Creator:
Kuhl, Albert E. & Johnson, Clinton T.
Object Type:
Report
System:
The UNT Digital Library
Low-Speed Investigation of the Effects of Wing Tanks and Speed Brakes on the Static Stability of a Model Having a 40 Degree Swept Wing
Memorandum presenting a low-speed wind-tunnel investigation conducted to study the effects of pylon-mounted wing tanks and speed brakes on the static stability characteristics of a model with sweptback wing and tail surfaces. The wing of the model was of aspect ratio 3.45 and was swept 40 degrees at the quarter-chord line. Results for the basic configuration and modifications to the basic configuration are provided.
Date:
May 25, 1955
Creator:
Sleeman, William C., Jr. & Alford, William J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Nuclear metallurgy lectures. Chapter 12, Effect of irradiation on the properties of fissionable and non-fissionable materials
This report summarizes the effect of irradiation on the properties of fissionable and non-fissionable materials. General property changes, irradiation of zirconium, zirconium-tin alloys, the irradiation of aluminium, irradiation of thorium and uranium, are a few of the topics discussed.
Date:
May 25, 1955
Creator:
Hueschen, R. E.
Object Type:
Report
System:
The UNT Digital Library
RESEARCH AND DEVELOPMENT IN THE FIELD OF THORIUM CHEMISTRY AND METALLURGY. Monthly Progress Report for April 16 to May 15, 1955
A continuous belt drier capable of handling 1000 lbs of oxycarbonate per day was completed, installed, and operated to produce a satisfactory product for chlorination. An experimental chlorinator was also completed. All necessary pants were completed for the fabrication of Horizons' Mark VI continuous electrolytic cell. Evaluations of oxycarbonate materials for chlorination wiih varying chlorinating agents were made, and many of the variables such as water content and CO/sub 2/ values were established. Extremely ductile rods were obtained from the direct extrusion of Th metal powder. Plans were completed for the Mark VI electrolytic cell. Work was continued toward the development of a semi-continuous operating electrolytic cell of 7500-a rated capacity. (D.E.B.)
Date:
May 25, 1955
Creator:
Wyatt, J.L.
Object Type:
Report
System:
The UNT Digital Library
STABILITY OF HOMOGENEOUS REACTORS
None
Date:
May 25, 1955
Creator:
Kasten, P. R.
Object Type:
Report
System:
The UNT Digital Library
A STUDY OF LOCATION TIMES FOR POSITIONS ARRANGED ON A PANAL IN A RANDOM AND AN ORDERED MANNER
None
Date:
May 25, 1955
Creator:
Beeler, J.R.
Object Type:
Report
System:
The UNT Digital Library
A Study of Location Times for Positions Arranged on a Panel in a Random and an Ordered Manner
The results of an experimental pilot study on the location time, for a sequence of N specified positions on a panel, are given for 1 <_ N <_ 30. The positions to be located were randomly arranged on one set of panels and arranged according to an ordering scheme on a second set of panels. Th location time for N positions randomly arranged on a panel varies approximately as N(2). In the case of an order arrangement the location time is essentially proportional to N. Even for as few as 30 positions, the location time for an random arrangement was twelve times greater than for an order panel. For 60 positions the ratio would be 19, and for 90 positions the ratio would be 26.
Date:
May 25, 1955
Creator:
Beeler, J. R.
Object Type:
Report
System:
The UNT Digital Library
Analytic evaluation of effect of inlet-air temperature and combustion pressure on combustion performance of boron slurries and blends of pentaborane in octene-1 : Supplement I - Influence of new boric-oxide vapor-pressure data on calculated performanc
"The theoretical performance of pentaborane has been recalculated using recent data on the vapor pressure of boric oxide. Previous calculations were based upon vapor-pressure data obtained some years ago by a method not as accurate as that employed in current investigations. The recalculated performance data for pentaborane differ appreciably from previously published data and are considered more accurate for evaluation of the relative potentialities of boron-containing fuels" (p. 1).
Date:
May 25, 1956
Creator:
Tower, Leonard K.
Object Type:
Report
System:
The UNT Digital Library
A Combined Distillation-Electrochemical Method for Recovery of Hydrofluoric Acid
Electrodialysis in an ion-exchange membrane cell was shown to be technically feasible for the concentration of an azeotropic mixture of HF and water. A flowsheet is presented for recovery of anhydrous HF by distillation and electrodialysis of the azeotropic residue. In the electrodialysis step, 2.6 kwhr of energy per pound of anhydrous product was consumed, with electricity at 1¢ per kilowatt-hour, the total operating cost of the electrodialysis equipment alone, including amortization, would be 6¢ per pound of HF.
Date:
May 25, 1956
Creator:
Marinsky, J. A. & Giuffrida, A. J.
Object Type:
Report
System:
The UNT Digital Library
Effect of combustion-chamber pressure and nozzle expansion ratio on theoretical performance of several rocket propellant systems
Theoretical calculations of specific impulse to determine the separate effects of increasing the combustion-chamber pressure and the nozzle expansion ratio on the performance of the propellants, hydrogen-fluorine, hydrogen-oxygen, ammonia-fluorine and AN-F-58 fuel - white fuming nitric acid (95 percent). The results indicate that an increase in specific impulse obtainable with an increase in combustion-chamber pressure is almost entirely caused by the increased expansion ratio through the nozzle.
Date:
May 25, 1956
Creator:
Morrell, Virginia E.
Object Type:
Report
System:
The UNT Digital Library
EFFICIENCY OF FUEL SYSTEM ENTRAINMENT SEPARATOR DURING NORMAL OPERATION. HRT Report 11 A (7c)b. Work Period: September 27, 1955-November 25, 1955
None
Date:
May 25, 1956
Creator:
Haubenreich, P.N.; Kolb, J.O.; Van Winkel, R. & Haynes, T.E.
Object Type:
Report
System:
The UNT Digital Library
Flow test: CG-482 ``DR type`` rear pigtail with B, D, DR and F pile fittings
This letter transmits the data from the 189-D Hydraulics Laboratory flow test on three CG-482 rear pigtails. The tests were run with a standard B, D, Dr and F rear nozzle and rear Parker fitting over the range of flows and temperatures anticipated for early CG-558 operation. The data from the test are given. All three pigtails gave essentially identical results. For comparison the results of previous tests with present rear pigtails are also plotted.
Date:
May 25, 1956
Creator:
Bell, K. J.
Object Type:
Report
System:
The UNT Digital Library
A horizontal-tail arrangement for counteracting static longitudinal instability of sweptback wings
Report presenting an exploratory investigation of the effectiveness of outboard horizontal tails in reducing the static longitudinal stability changes with lift coefficient associated with many sweptback wings. The results indicated that outboard horizontal tails can be a very effective means of counteracting the trend toward longitudinal instability characteristics of many sweptback wings. Results regarding the effects of changes in horizontal-tail position, effects of wing fences, average downwash at the tail, effects of changing tail size, lift, drag, and pitching-moment characteristics, and effects of flaps are provided.
Date:
May 25, 1956
Creator:
Edwards, George G. & Savage, Howard F.
Object Type:
Report
System:
The UNT Digital Library
HRT MODIFIED PRESSURIZER DESIGN
None
Date:
May 25, 1956
Creator:
Michelson, C.
Object Type:
Report
System:
The UNT Digital Library
Preliminary investigation of short two-dimensional subsonic diffusers
Report presenting several short two-dimensional subsonic diffusers over a range of throat Mach numbers from 0.3 to 0.9. The designs incorporated an effective diffusion angle of approximately 30 degrees and an area ratio of 3. At a throat Mach number of 0.7, the resulting profile distortion of the unmodified 30 degree diffuser was diminished from about 11 to approximately 4 percent by using any of the configurations.
Date:
May 25, 1956
Creator:
Woollett, Richard R.
Object Type:
Report
System:
The UNT Digital Library
PRESSURE SHELL STRESS ANALYSIS HRR
None
Date:
May 25, 1956
Creator:
Lawrence, M.C.
Object Type:
Report
System:
The UNT Digital Library
A Summary of Results Obtained During Flight Simulation of Several Aircraft Prototypes With Variable-Stability Airplanes
Memorandum describing an investigation using two airplanes, an F6F-3 and F-86A, each fitted with servo equipment for varying in flight the lateral and directional stability and handling characteristics, which have been flown by test pilots to simulate the predicted dynamic behavior of six prototype airplanes. The methods of simulation and the types and ranges of variables considered are presented and the results of the individual programs are discussed.
Date:
May 25, 1956
Creator:
McNeill, Walter E. & Creer, Brent Y.
Object Type:
Report
System:
The UNT Digital Library
A summary of results obtained during flight simulation of several aircraft prototypes with variable-stability airplanes
Report presenting testing of two airplanes, the F6F-3 and F-86A, fitted with servo equipment for varying in flight the lateral and directional stability and handling characteristics and flown by test pilots to simulate the predicted dynamic behavior of six prototype airplanes. Results regarding the aerodynamic characteristics and pilot opinions for each plane are provided.
Date:
May 25, 1956
Creator:
McNeill, Walter E. & Creer, Brent Y.
Object Type:
Report
System:
The UNT Digital Library
Thermal Expansion of Pile Graphites
Average coefficients of thermal expansion of the temperature range 25 C to approximately 425 C are reported for numerous types of graphite. The dependence of thermal expansion on crystal orientation and crystallite size and the effects of oxidation and cold test hole irradiation are discussed. An empirical relationship between thermal expansion and the initial rate of physical expansion under cold test hole irradiation is formulated.
Date:
May 25, 1956
Creator:
Riley, W. C. & Woodruff, E. M.
Object Type:
Report
System:
The UNT Digital Library
Army Gas-Cooled Reactor Systems Program Monthly Progress Report: April 1959
Abstract: This monthly progress report covers the activities of the Army Gas-Cooled Reactor System Program for April 1959. The program includes a water-moderated heterogeneous reactor (Gas-Cooled Reactor Experiment I), a graphite-moderated homogeneous reactor (Gas-Cooled Reactor Experiment II), a mobile gas-cooled reactor (ML-1), and the coordination of the Gas Turbine Test Facility. [It reports] the progress of each project, the associated tests and data evaluation, the applicable design criteria, and the fabrication of reactor components" (p. 1).
Date:
May 25, 1959
Creator:
Aerojet-General Corporation
Object Type:
Report
System:
The UNT Digital Library
Army Gas-Cooled Reactor Systems Program. Monthly Progress Report for April 1959
The Army Gas Cooled Reactor System Program includes water moderated heterogeneous reactor (Gas Cooled Reactor Experiment I), a graphite moderated homogeneous reactor (Gas Cooled Reactor Experiment II), a mobile gas cooled reactor (ML-1), and the co ordination of thc Gas Turbine Test Facility. The progress of each project, the associated tests and data evaluation, the applicabie design criteria, and the fabrication of reactor components are briefly summarized. (For preceding period see IDO-28538.) (W.D.M.)
Date:
May 25, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Artificial cooling of the Columbia River by dam regulation: Part 1
In early July 1958, it appeared that Columbia River temperatures at HAPO would be near 24--50{degree}C by the end of August. River temperatures were averaging 40 to 50{degree}C above 1957 figures and were 3{degree} to 4{degree} above the ten year highs. It seemed desirable to examine the problem to determine if any corrective measure could be taken, since it was apparent that production losses were imminent. The large storage of cold water behind Grand Coulee Dam, normally untapped, was a source of possible relief. A plan for use was proposed for the peak high temperature period and agreed to by the Bureau of Reclamation.
Date:
May 25, 1959
Creator:
Kramer, H. A.
Object Type:
Report
System:
The UNT Digital Library
Artificial Cooling of the Columbia River By Dam Regulation Part 1
In early July, 1958, it appeared that Columbia River temperature at HAPO would be near 24.5ºC by the end of August. River temperature were averaging 4º to 5º above 1957 figures and were 3º to 4º above the ten year highs. It seemed desirable to examine the problem to determine if any corrective measure could be taken, since it was apparent that production losses were imminent.
Date:
May 25, 1959
Creator:
Kramer, H. A.
Object Type:
Report
System:
The UNT Digital Library
Artificial cooling of the Columbia River by dam regulation. Part 3
The temperatures of the Columbia River was reduced 1 to 30 Centigrade with beneficial effects at HAPO. It is reasonable to expect that future benefits may be possible. It is desirable that the temperature of the river be controlled each year to the maximum extent possible. Instrumentation improvements requested to effect optimum savings. Records of river temperatures and flows should continue to be maintained by IPD as a necessary part of temperature optimization. Where possible, the coincident use of the river cooling technique should be made for the benefit of anadromous fish.
Date:
May 25, 1959
Creator:
Kramer, H. A.
Object Type:
Report
System:
The UNT Digital Library