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[Letter from J. C. Barr to C. B. Moore, April 22, 1877]

Description: Barr is talking about an advertising sheet that Moore wrote on that he found interesting. He asks about damages and if someone is going to visit. He mentions that everyone is well. Abner's son is not well with a fever. It has been really wet, and they have been unable to work on their corn. He has cut wood and a garden planted. He were able to sell 700 bushels of corn at 39 cents, 400 bushels of wheat at $1.41. He is hoping for no war in the east because of property damage. He hopes they write… more
Date: April 22, 1877
Creator: Barr, J. C.
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
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[Letter from Birdie McGee to Linnet Moore, April 22, 1898]

Description: This is a letter from the Charles B. Moore Collection. It is written by Birdie McGee and is addressed to Linnet Moore. In this letter, McGee informs Moore of the goings-on in Gallatin, Tennessee. The news includes: a confirmation of the receipt of Linnet's photograph, updates on family and friends, news about her past plans and future plans, agricultural and weather updates,details on community events and the attire that her and some of the family are going to wear to one of the events, a discu… more
Date: April 22, 1898
Creator: McGee, Birdie
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
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[Letter from Lula Watkins to Linnet, Ruth, and Claude D. White, April 22, 1917]

Description: Letter to Linnet, Ruth, and Claude D. White from Lula Watkins. She wrote to express her regret that she will not be able to see Linnet until later in the year and to update her friend on her life. She mentions a new car her family has purchased, friends she has spent time with, and a high-profile divorce case involving Dr. Arthur.
Date: April 22, 1917
Creator: Watkins, Lula
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
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The problem of cooling an air-cooled cylinder on an aircraft engine

Description: An analysis of the cooling problem has been to show by what means the cooling of an air-cooled aircraft engine may be improved. Each means of improving cooling is analyzed on the basis of effectiveness in cooling with respect to power for cooling. The altitude problem is analyzed for both supercharged and unsupercharged engines. The case of ground cooling is also discussed. The heat-transfer process from the hot gases to the cylinder wall is discussed on the basis of the fundamentals of heat tr… more
Date: April 22, 1940
Creator: Brevoort, M. J. & Joyner, U. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of Temperature on the Resonance Absorption of Neutrons by Uranium

Description: The resonance absorption of uranium for neutrons has been investigated between 20 degree C and 1000 degree C. Experiments were caried out on both UO2, density 4.63, and metal. The resonance activity was measured with respect to that of an iodine monitor at several different temperatures and the ratio of activity at temperature T to that at 20 degree C was determined. The increase in activity is 0.9 per cent per 100 degree C for the oxide and 1.1 percent per 100 degree C for the metal. The perio… more
Date: April 22, 1943
Creator: Mitchell, Allan C. G. (Allan Charles Gray), 1902-; Slotin, Louis; Marshall, John; Nedzel, V. A.; Brown, L. J. & Pruett, John R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recovery of Uranium From Beta Salvage Residues by Vapor Phase Chlorination With CClâ‚„

Description: Abstract: A simple process to recover the bulk of the uranium from ignited beta salvage residues was sought. In preliminary experiments a vapor phase chlorination with CClâ‚„ for about four hours followed by water and nitric acid leaching was found adequate. Recoveries are estimated at 60 to 90% of the total uranium content.
Date: April 22, 1946
Creator: Veatch, R. W., Jr. & Miller, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Correlation of the Trim Limits of Stability Obtained for a PB2Y-3 Flying Boat and a 1/8-Size Powered Dynamic Model

Description: Tests of a PB2Y-3 flying boat were made at the U.S. Naval Air Station, Patuxent River, Md., to determine its hydrodynamic trim limits of stability. Corresponding tests were also made of a 1/8-size powered dynamic model of the same flying boat in Langley tank no. 1. During the tank tests, the full-size testing procedure was reproduced as closely as possible in order to obtain data for a direct correlation of the results. As a nominal gross load of 66,000 pounds, the lower trim limits of the full… more
Date: April 22, 1947
Creator: Garrison, Charlie C.; Goldenbaum, David M. & Hacskaylo, Andrew
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Drag characteristics of rectangular and swept-back NACA 65-009 airfoils having various aspect ratios as determined by flight tests at supersonic speeds

Description: Report presenting tests to determine the effect of sweepback angle and aspect ratio on the drag at supersonic speeds of wings of NACA 65-009 airfoil section. The current report is part of a bigger investigation and includes results for aspect ratios of 3.8 and 5.0. Results regarding the drag coefficient and general effect of aspect ratio are provided.
Date: April 22, 1947
Creator: Tucker, Warren A. & Nelson, Robert L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Fast Coincidence Circuit with Pulse Height Selection

Description: Abstract: The output signal of a linear accelerator may have a rise time of 1-2 x 10[minus]7 seconds. Therefore, the output of a pulse height selector operating on this signal has a variation of delay from the original signal of about this amount. In the instrument to be described in this technical report this difficulty is largely resolved.
Date: April 22, 1947
Creator: Bell, P. B.; DeBenedetti, Sergio & Francis, J. B., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Investigation of the Downwash at the Probable Tail Location Behind a High-Aspect-Ratio Wing in the Langley 8-Foot High-Speed Tunnel

Description: Report presenting measurements downwash angles behind a model of a high-aspect-ratio wing at points near the probable tail location at Mach numbers up to 0.89 in the high-speed tunnel. The model has an NACA 65-210 section, an aspect ratio of 9.0, a taper ratio of 2.5:1, no twist, dihedral, or sweepback. Results regarding experimental data and comparison of experimental and calculated results are provided.
Date: April 22, 1947
Creator: Whitcomb, Richard T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summary of the Research Progress Meeting

Description: Technical report includes three reports of research progress: 1) Range Measurements on 190 Mev Deuterons, M. Stephan; 2) Meson measurements, C. Lattes; and 3) N-P Scattering, R. Christian.
Date: April 22, 1948
Creator: Wakerling, R. K. (Raymond Kornelious), 1914-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Time requirements for current discharge operations

Description: In order to evaluate the feasibility of segmental discharge equipment, it was necessary to determine the time required for segmental discharge during the current operating procedures. This memorandum details this time study.
Date: April 22, 1948
Creator: Cabell, C. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vibration of turbine blades in a turbojet engine during operation

Description: Report presenting an experimental investigation to determine the vibration phenomena that occur in turbine blades of a typical jet-propulsion engine during service operation; high-temperature strain gages were used to measure the turbine-blade vibrations. Results regarding modes of vibration, centrifugal stresses, and vibration of turbine blades during operation are provided.
Date: April 22, 1948
Creator: Morgan, W. C.; Kemp, R. H. & Manson, S. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Investigation of Horizontal Tails 1: Unswept and 35 Degrees Swept-Back Plan Forms of Aspect Ratio 3

Description: Memorandum presenting the results of a wind-tunnel investigation of the low-speed characteristics of horizontal tails of aspect ratio 3 with unswept and swept-back plan forms. Two models were tested which had identical areas, aspect ratio, taper ratio, and airfoil section, differing only in the angle of sweepback and elevator area ratios. The major effect of sweepback was to increase the rate of change of hinge-moment coefficient with angle of attack, to reduce the rate of change with elevator … more
Date: April 22, 1948
Creator: Dods, Jules B., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A report on lithium, sodium, and liquid neutron sources

Description: The objectives in producing neutron sources are to produce uniform products of as high efficiencies as possible from the neutron yielding elements and to do this in the safest manner. The purpose of the present work was to improve the methods of preparing sources and at the same time increase the types of sources available. Lithium, sodium, and their compounds were chosen because the neutron fluxes and energies are low, thus making the experimental work less hazardous to the operator. Also, the… more
Date: April 22, 1949
Creator: Bentz, L.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stability Results Obtained With Douglas D-558-1 Airplane (BuAero No. 37971) in Flight Up to a Mach Number of 0.89

Description: Memorandum presenting measurements of some of the high-speed characteristics of the D-558-1 airplane up to Mach number 0.89. The results of the tests showed that the stabilizer incidence drastically affected the longitudinal trim characteristics above a Mach number of 0.80.
Date: April 22, 1949
Creator: Barlow, William H. & Lilly, Howard C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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