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Office of Scientific & Technical Information Technical Reports
3,019
Congressional Research Service Reports
1,392
Texas Patents
637
Texas Attorney General Opinions
591
Defense Base Closure and Realignment Commission
538
Government Accountability Office Reports
406
Technical Report Archive and Image Library
330
National Advisory Committee for Aeronautics Collection
193
Texas Register
123
TRAIL Microcard Collection
110
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High Voltage Electron Beam Welding of W-RE Thermocouples
A series of W-5 Re/W-26 Re thermocouples have been electron beam welded at the Hamilton Standard Division at our request. This technical report is a summary of our evaluation of these joints. These weldments did exhibit incomplete fusion in cap welds and some porosity in undesirable lead junction shapes. In fairness, this was a single attempt to make a difficult joint, and the objective of ungrounded 1/16 OD clad joints was met. As noted by Hamilton, two changes are necessary to improve this joint design: (1) swaging to forming the clad end rather than crimping prior to cap welding. (2) using a fixture with rotary motion on a tilting axis.
Date:
December 13, 1962
Creator:
Doyle, J.
Object Type:
Report
System:
The UNT Digital Library
Ames Project, Chemical Research - Analytical Chemistry, Report for Period of February 1 to March 10, 1944
Technical report covering (1) analysis of uranium bromide and chloride samples, (2) the ferric-nitrate method of analyzing uranium fluorides for fluorine, (3) spectrographic determination of boron, cadmium and manganese in magnesium metal, (4) service analyses. contributions to other problems, (5) attempted preparation of uranous oxyfluoride, and (6) corrections in previous reports.
Date:
April 13, 1944
Creator:
Spedding, F. H. (Frank Harold), 1902- & Wilholm, H. A.
Object Type:
Report
System:
The UNT Digital Library
Chemical Properties of Sodium Triethylhydroborate and Sodium Triisopropoxyhydroborate
Technical report abstract: Sodium hydride and triethylborane react to form sodium triethylhydroborate, NaBH(C2H5)3. This compound, a liquid at rooom temperature, was found to be soluble in hexane and mineral oil. A study was made of the thermal decomposition of sodium triethylhydroborate and its behavior toward boron trifluoride, boron trichloride, methyl borate, carbon dioxide, silane, and ethylene. Sodium triisopropoxyhydroborate, NaBH(OC3H7)3, was prepared and also found to be soluble in hexane and mineral oil. The reactions of this compound with methyl borate, triethylborane, silicon tetrachloride, and boron trichloride were investigated.
Date:
December 13, 1956
Creator:
Pearson, Richard King, 1926-; Edwards, L. J. & Maginnity, P. M.
Object Type:
Report
System:
The UNT Digital Library
Thermal Annealing of Neutron Induced Discomposition in Artificial Graphite : [Part] III, Heating-During-Irradiation Experiments
Experiments are described in which the pile-induced changes in electrical resistivity and elastic modulus of graphite were investigated as functions of the sample temperature during bombardment and the amount of bombardment. The data are for relatively low bombardment times (up to ca. 20 L-units) and temperatures (up to 340*C) and are not sufficiently extensive to permit unequivocal conclusions.
Date:
April 13, 1953
Creator:
Neubert, T. J.
Object Type:
Report
System:
The UNT Digital Library
The Use of the Electrical Conductivity of Graphite as a Radiation Damage and Flux Monitor. Implications of the Results to the General Theory of Radiation Damage
A method for monitoring radiation damage irradiations using the change of the electrical conductivity of graphite is described. Results of monitoring operations in a number of locations are given. An attempt is made to explain the damage rate found in the converter at CP-3. An estimate of the flux spectrum in VT-4 and the converter of CP-3 is made and the damage rate is computed according to theories of Seitz and James. It is found that the experimental results are more in accord with the predictions of Seitz. A number of corrections to James' report, ORNL-307, are noted in an appendix. It is shown that some information about the fast flux spectrum can be inferred from the radiation damage rate.
Date:
July 13, 1953
Creator:
Primak, W. L. & Fuchs, L. H.
Object Type:
Report
System:
The UNT Digital Library
Attack on Uranium by Lithium at 600 C
The tests described in this report were static tests devised to afford a basis for a quick evaluation of the resistance of uranium to attack by lithium. The work was done at the same time as the tests of beryllium, thorium, and various engineering metals in lithium (described in ANL-4990); but the results with uranium are given in the present classified report so that the results of the other tests can be published as an unclassified document. The procedure for carrying out the tests is described in ANL-4990.
Date:
October 13, 1950
Creator:
Wilkinson, Walter D. & Yaggee, Frank L.
Object Type:
Report
System:
The UNT Digital Library
Analysis of the Combustion of Graphite-Uranium Fuels in a Fixed Bed or Moving Bed
The first step in a proposed processing method for recovery of uranium from graphite-uranium fuels consists of oxidation of the fuel by oxygen to volatilize the carbon. Residue ash from the combustion step can be treated in a variety of ways to recover and purify the uranium. The combustion step may be caried out by contacting the solid fuel in a fixed or moving bed with a stream of oxygen-bearing gas in a tubular or annular reactor. Oxidizing gas may be introduced to the reactor at several points up the reactor and there may be continuous or intermittent addition of fresh fuel and removal of residue ash.
Date:
August 13, 1964
Creator:
Scott, Charles D.
Object Type:
Report
System:
The UNT Digital Library
Graduate Programs for the Health Physicist in the United States
The first man-made nuclear reactor -- or "pile" as it was then called -- was rather hurriedly improvised and operated in a crowded space under the athletic bleachers of Stagg Field at the University of Chicago on December 2, 1942. Just prior to this time, there began the assembly of a group of physicists with an unusual assignment. They were determined that radiation hazards of unprecedented proportions must be coped with successfully in the conduct of reactor programs as planned. Since these physicists were to be concerned with the health of radiation workers, they were called health physicists. There was no formal instruction available to this first group of health physicists and they perforce received training as they felt their way by firsthand experience and by trial and error. Health physics at Oak Ridge National Laboratory from the very beginning has been organized into three principal areas: applied activities, education and training and research.
Date:
August 13, 1964
Creator:
Morgan, K. Z. (Karl Ziegler), 1908-
Object Type:
Report
System:
The UNT Digital Library
Three-Velocity Neutron Diffusion Calculations for an Untamped Oralloy Sphere
The results of a series of neutron diffusion calculations relating to an untamped Orally sphere are presented in detail in this report. The three-velocity neutron transport theory was taken as the basis for the analytical work preceding the computations. This particular theory, also known as the transport approximation, is defined in LA-1271 and known to be quite accurate for assemblies primarily involving materials of large atomic weight. For a sphere of uniform density and atomic composition the transport theory has another advantage. It can readily be formulated in terms of simultaneous integral equations (in our case three), relatively simple in form, involving the collision densities [formula] and a set of parameter values describing the materials. Nb(r) is , as indicated, a function of the radial distance [formula] and the velocity index g, g - 1, 2, 3. The parameters, fifteen in number for the three-velocity theory, are comprised of the velocities, the inverse mean free paths, and the transfer coefficients.
Date:
October 13, 1951
Creator:
Carlson, Bengt
Object Type:
Report
System:
The UNT Digital Library
Stability for inhomogeneous difference schemes
Abstract. The Equivalence Theorem of P. Lax is extended to difference schemes for initial-value problems for linear inhomogeneous PDE with linear inhomogeneous boundary values and for boundary-value problems.
Date:
July 13, 1960
Creator:
Seidman, Thomas I.
Object Type:
Report
System:
The UNT Digital Library
Effect of Choice of Electrical Conductor on Power Requirements of Low Temperature Magnets
Introduction. As has been shown by Post, the total power required to produce a strong, steady-state magnetic field is strongly dependent upon the temperature at which the electrical conductor of the magnet operates. The power required for operation at very low temperature can, in some cases, be much less than that required for ambient temperature operation. The power required for low temperature operation depends on many system characteristics which include the metal chosen for the electrical conductor, the purity of this metal, and efficiency of the refrigeration equipment. This paper shows the relative power requirement, as a function of temperature, of a magnet with a particular shape and with a field strength of 100,000 gauss. Data is shown for three electrical conductors: copper, aluminum, and sodium.
Date:
November 13, 1959
Creator:
Mallon, Richard G.
Object Type:
Report
System:
The UNT Digital Library
Become a Trailblazer: Uncovering the Whole Story of Women's Suffrage
Webinar discussing the National Votes for Women Trail with several panelists involved in the project to place historic markers in every state documenting the historical figures and events in the women's suffrage movement. It opens with a video clip describing the markers that have already been placed in Kentucky.
Date:
August 13, 2020
Creator:
United States. Women's Suffrage Centennial Commission.
Object Type:
Video
System:
The UNT Digital Library
Texas Register, Volume 45, Number 46, Pages 8067-8208, November 13, 2020
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
November 13, 2020
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Airship.
Patent for improved airship design involving the containment of gas in an envelop and the passage of gas through multiple compartments with the purpose of facilitating, "steering or repairing of the machine." (line 17) including illustrations.
Date:
August 13, 1918
Creator:
Rainey, James E. J.
Object Type:
Patent
System:
The Portal to Texas History
Adjustable Spring Clamp
Patent for an improved adjustable spring clamp design.
Date:
May 13, 1919
Creator:
Hillin, H. C.
Object Type:
Patent
System:
The Portal to Texas History
Apparatus for Treatment of Oil Emulsions.
Patent for improvements in apparatus for treatment of oil emulsions by providing a means that will greatly assist in the separation of water from oil emulsions and which will aid the re-absorption or retention of gas.
Date:
January 13, 1920
Creator:
McKibben, Charles W.
Object Type:
Patent
System:
The Portal to Texas History
Apparatus for Extracting Minerals from Ores.
Patent for an apparatus that extracts minerals, especially sulfur, from ores. The apparatus features new and useful improvements, creating an automatic extraction that separates the minerals in a pure state.
Date:
January 13, 1920
Creator:
Shires, George M.
Object Type:
Patent
System:
The Portal to Texas History
Construction of the Hulls of Concrete Ships.
Patent for "new and useful improvements in Construction of the Hulls of Concrete Ships" (lines 5-6). The improvements enable concrete hulls to be made efficiently, comparatively lightweight, and durable with a new form of rib reinforcement providing strength to withstand all strains of ocean travel.
Date:
May 13, 1919
Creator:
Holmgreen, Julius H.
Object Type:
Patent
System:
The Portal to Texas History
Safe Lock
Patent for providing "a means which will necessitate the operation of a series of setting devices before the several bolts can be moved to unlock the door". (lines 11-14).
Date:
June 13, 1918
Creator:
Harris, William J. B. of Bonham, TX
Object Type:
Patent
System:
The Portal to Texas History
Automatic Change-Over Signal for Motion-Picture Machines
Patent for an automatic change-over signal for motion picture machines that signals the approach of the end of the film reel.
Date:
August 13, 1918
Creator:
Wood, Victor & Feegles, De Witt C.
Object Type:
Patent
System:
The Portal to Texas History
Carbureter
Patent for the carbureter for controlling the quality of the combustible mixture for internal combustion engines, such as automobiles requiring a wide range of variation in the proportion of fuel and air to efficiently and economically supply the demand.
Date:
January 13, 1920
Creator:
Guthrie, William S.
Object Type:
Patent
System:
The Portal to Texas History
Advertising Attachment for Scales.
Patent for improvements in advertising attachments for scales to "provide an attachment of the character specified, wherein a series of display members are provided, mounted to be moved into different positions, to bring different matter into different positions, and controlled to movement by the stepping onto the weighing platform of the one to be weighed." (lines 11-18)
Date:
July 13, 1920
Creator:
Funk, Arthur Neal
Object Type:
Patent
System:
The Portal to Texas History
Coal-Oil Generator.
Patent for improvements in oil burners to have the "means to permit the same to be positioned within the fire box of a stove, by means of the especially constructed support." (lines 12-15)
Date:
July 13, 1920
Creator:
Epps, Henry Gaston
Object Type:
Patent
System:
The Portal to Texas History
Cooking Utensil
Patent for a device to heat a cooking utensil's content. The object provides a device which will support a receptacle in or outside any type of heating medium. It also requires only a minimal heating surface to radiate heat to all sides of the receptacle as well as the very bottom.
Date:
December 13, 1921
Creator:
Kirk, Robert B. & Young, Joseph B.
Object Type:
Patent
System:
The Portal to Texas History