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588
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425
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146
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122
Harris and Eliza Kempner
27
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10
Rescuing Texas History, 2018
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Tuballoy Peroxide
The following report is the third in a series of reports discussing tuballoy peroxide. This report in particular discusses the solubility of tuballoy peroxide in sulphate solutions based on the tubanyl sulphate association hypothesis discussed in previous reports.
Date:
1945
Creator:
Grieger, P. F. & Gates, J. W.
System:
The UNT Digital Library
Tuballoy Peroxide
The following report determines the solubility of tuballoy peroxide over a fairly wide range of sulphate, hydrogen ion and hydrogen peroxide concentrations.
Date:
1945
Creator:
Grieger, P. F.; Christopherson, E. W.; Oringer, Roy & Gates, J. W.
System:
The UNT Digital Library
Tuballoy Peroxide
The following report is the fourth in a series of reports on the studies around tuballoy peroxide. This report discusses the effect of the fifteen common metal ions on precipitation of tuballoy peroxide.
Date:
1945
Creator:
Grieger, P. F.; Christopherson, E. W.; Mogg, D. W. & Gates, J. W.
System:
The UNT Digital Library
Tunnel-Wall Corrections to Rolling and Yawing Moments Due to Aileron Deflection in Closed Rectangular Wind Tunnels
"A method is developed for calculating the tunnel-wall corrections to rolling and yawing moments due to aileron deflection on models in closed rectangular wing tunnels. Graphs are presented which permit a rapid determination of these corrections for models mounted in 7- by 10-foot or 8- by 12-foot wind tunnels. The method is so developed that the corrections may be calculated for the deflection of either aileron alone or both ailerons simultaneously" (p. 1).
Date:
January 1945
Creator:
Graham, Donald J.
System:
The UNT Digital Library
The Two-Dimensional Incompressible Potential Flow Over Corrugated and Distorted Infinite Surfaces
"The two-dimensional incompressible potential flow over corrugations and bumps of arbitrary shape is derived by conformal transformation. The results are compared with those obtained by the methods of thin-airfoil theory. Some discussion is included of the flow over bumps that protrude both inward and outward from a wall" (p. 1).
Date:
January 1945
Creator:
Perl, W. & Green, L. J.
System:
The UNT Digital Library
United States Earthquakes, 1945
Report discussing earthquake activity in the United States during 1945. The report is broken down by regions and has sections for specific earthquakes.
Date:
1945
Creator:
unknown
System:
The UNT Digital Library
Volatilization of Molybdenum During the Preparation of TF₄ and T₃O₈ from TF₄
This report follows the study that was undertaken in an attempt to show how one of the elements held over in appreciable amounts in TF4 after conversion with TO3, molybdenum, acts during this transformation. Also of interest is the behavior of molybdenum during the reaction TF4 --> T3O2.
Date:
1945
Creator:
Wick, L. B.; Weaver, B. S. & Gates, J. W.
System:
The UNT Digital Library
Wind-Tunnel Tests of a 1/5-Scale Semispan Model of the Republic XF-12 Horizontal Tail Surface
"Wind-tunnel tests of a 1/5-scale semispan model of the Republic XF-12 horizontal tail surface equipped with an internally balanced elevator were conducted in the 6- by 6-foot test section of the Langley stability tunnel. The tests included measurements of the aerodynamic characteristics of the horizontal tail with and without a beveled trailing edge and also included measurements of the tab characteristics. The variation of the aerodynamic characteristics with boundary-layer conditions and leakage in the internal-balance chambers, measurements of the boundary-layer displacement thickness near the elevator hinge axis, and pressure distributions at the mean geometric chord were also obtained" (p. 1).
Date:
1945
Creator:
Denaci, H. G.
System:
The UNT Digital Library
Wind-Tunnel Tests of a 1/6-Scale Model of Republic XF-12 Vertical Tail Incorporating a De-Icing Air Duct
"A 1/6-scale model of the Republic XF-12 vertical tail with stub fuselage, stub horizontal tail, and a de-icing air duct was tested in the Langley stability tunnel. The investigation consisted of a study of the effects of the duct, with and without air flow, on the aerodynamic characteristics of the model. The model tested was a revision of a model previously tested in the Langley stability tunnel" (p. 1).
Date:
1945
Creator:
MacLachlan, Robert & Miller, Sadie M.
System:
The UNT Digital Library
Wind-Tunnel Tests of a Dual-Rotating Propeller Having One Component Locked or Windmilling
"The effect on the propulsive efficiency of locking or windmilling one propeller of a six-blade dual-rotating propeller installation was determined in the Langley propeller-research tunnel. Tests were made of both pusher and tractor configurations, with the unpowered propeller both leading and following the powered propeller, which was set at a blade angle of 40 degrees. The maximum propulsive efficiency of the powered propeller in combination with the locked or windmilling propeller was, in all cases, lower than that of the powered propeller operating alone" (p. 1).
Date:
January 1945
Creator:
Bartlett, Walter A., Jr.
System:
The UNT Digital Library
XC-35 Gust Research Project Characteristics of Vertical Drafts and Associated Vertical Gust Velocities Within Convective Type Clouds
Report discusses the results of measurements made via an XC-35 airplane to determine the relation between the velocities of vertical drafts and associated gusts within convective-type clouds. Information about vertical-draft velocity and maximum vertical true gust velocity is included.
Date:
January 1945
Creator:
Moskovitz, A. I.
System:
The UNT Digital Library
Transference and Adsorption on Glass of Carrier Free Zirconium
.Technical report describing the transference experiments. The carrying of zirconium and columbium by ferric hydroxide has a very marked dependence on pH. In the experiments it was noticed that the concentration of Zr activity in various solutions changed with time This indicated that the Zr was being adsorbed on the glass. The carrier free trace is adsorbed on glass. This effect must be considered in experiments with Zr tracer in glass apparatus.
Date:
January 3, 1945
Creator:
Dodgen, H. W. & Rollefson, G. F.
System:
The UNT Digital Library
Measurement of Flying Qualities of a Douglas A-26B Airplane (AAF No. 41-39120) 2: Lateral and Directional Stability and Control Characteristics
Report discussing testing of the Douglas A-26B to determine the lateral and directional stability and control characteristics. Information about the control-free lateral and directional oscillations, sideslip due to full aileron deflection, control-fixed and control-free directional stability, effective dihedral, side force due to sideslip, rudder control characteristics, variation of rudder and aileron force with speed, and response to abrupt aileron deflection are described.
Date:
January 4, 1945
Creator:
Sjoberg, S. A.; Crane, H. L. & Hoover, H. H.
System:
The UNT Digital Library
Measurement of Flying Qualities of a Douglas A-26B Airplane (AAF No. 41-39120) 3: Stalling Characteristics
Report discussing testing on the Douglas A-26B airplane to determine the stalling characteristics, variation of maximum normal-force coefficient with flap position, and a calibration of the service airspeed installation.
Date:
January 4, 1945
Creator:
Sjoberg, S. A.; Crane, H. L. & Hoover, H. H.
System:
The UNT Digital Library
The Influence of Exhaust Pressure on Knock-Limited Performance
Report discussing testing on two types of single cylinders to determine the effect of the relation of exhaust pressure to inlet-air pressure on knock-limited performance. Variables explored included exhaust pressure, fuel-air ratio, and engine speed. Three types of fuels were also used to explore the effect of exhaust pressure on fuel ratings.
Date:
January 5, 1945
Creator:
Cook, Harvey A.; Held, Louis F. & Pritchard, Ernest I.
System:
The UNT Digital Library
Estimates of the Maximum Surface Temperature for a Slug Displaced from the Center of the Tube
When a slug has been displaced from its normal position the thickness of the water film is decreased over part of the surface, and higher temperatures may be expected where the film is thin. The experimental data necessary for an exact calculation is incomplete, but some approximate estimates ae made here with special assumption concerning the heat transfer coefficient h as a function of the angle p from the point where the water film is thinnest. Variation in water bulk temperature around the annulus due to poor mixing is not considered here.
Date:
January 9, 1945
Creator:
Murray, F. H.
System:
The UNT Digital Library
Dallas Origin and Destination Survey
Survey created by the Texas Highway Department in conjunction with the "City and County of Dallas" concerning the "major external routes of vehicular travel radiating from Dallas." The survey asked drivers where their trip began, which roads they traveled on, and their destination. This report includes tables and maps showing the compiled data and the various traffic movements around the city.
Date:
January 10, 1945
Creator:
Texas. Highway Department.
System:
The Portal to Texas History
The Control of the HF Concentration of Electrolyte by Electrical Conductance Measurements. Problem Report for Period February 23, 1944 to November 27, 1944
None
Date:
January 11, 1945
Creator:
Turnbull, S. G., Jr.
System:
The UNT Digital Library
METALLURGY DIVISION PROGRESS REPORT FOR THE PERIOD DECEMBER 30 1944 TO JANUARY 6, 1945
None
Date:
January 11, 1945
Creator:
unknown
System:
The UNT Digital Library
Rough notes, coefficient tests, original data
This report provides the original data in the form of rough notes for production reactor coefficient tests.
Date:
January 11, 1945
Creator:
Menegus, R. L.
System:
The UNT Digital Library
The Solvent Extraction of Pu(Iv) by Trifluoroacetylacetone
None
Date:
January 15, 1945
Creator:
Crandall, H. W.; Thomas, J. R. & Reid, J.C.
System:
The UNT Digital Library
The Determination of T at the Dropping Mercury Electrode in Hex Plant Ammonia and Peroxide Decantrates
Inroduction: "A study of the literature, particularly the work done by R. Strubl, I.W. Kolthoff and S.B. Smith, indicated that a polargraphic method for the estimation of T could be devised which would not sacrifice reasonable accuracy for rapidity. Work was begun with the intention of developing such a method."
Date:
January 16, 1945
Creator:
Kwiatkowski, S.; Owens, J. & Casto, C. C.
System:
The UNT Digital Library
Separation of Iron and Tuballoy With Phthallic Acid
Introduction: This report embodies the results of an investigation as to the possibility of removing the bulk of the iron from gunk solutions of various concentrations by precipitation of the iron with phthallic acid and subsequent precipitation of tuballoy. The method consists of dissolving the phthallic acid in the gunk solution and then adding NH₃ to a suitable pH, precipitating the iron, and leaving the tuballoy in solution.
Date:
January 17, 1945
Creator:
Hoffman, R. E.; Armstrong, G. M.; Miller, A. J. & Gates, J. W., Jr.
System:
The UNT Digital Library
Technical Department report on Production Test No. 313-58-M: Recovery of lead dipped slugs
A number of slugs have been dipped in lead, then Al-Si and canned. Laboratory experiments showed that the can and outer bonding layers could be removed by the standard caustic-nitrate treatment. The alloy layer was removed from several slugs by hot nitric acid without use of hydrofluoric acid. It was desired to extend the method to the plant process and to clean accumulated lead dipped pieces. Lead dipped slugs may be cleaned by the regular recovery process with a weight loss of about 0.03 lbs. per slug. Attempts to modify or shorten the procedure were not successful. Twenty-four (24) of the recovered slugs were canned satisfactorily.
Date:
January 17, 1945
Creator:
Eubank, L. D.
System:
The UNT Digital Library