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Fire Tests of Building Columns
Technical paper issued by the Bureau of Mines over studies conducted on fire resistance on building columns. As stated in the introduction, "the purpose of this investigation is to ascertain (1) the ultimate resistance against fire, of protected and unprotected columns as used in the interior of buildings; (2) their resistance against impact and sudden cooling from hose streams when in a highly heated condition" (p. 12). This paper includes tables, illustrations.
Date:
April 21, 1921
Creator:
Ingberg, S. H.; Griffin, H. K.; Robinson, W. C. & Wilson, R. E.
System:
The UNT Digital Library
Revision of the American Pikas (Genus Ochotona)
Discusses distribution, habitat, habits, pelage, molt, specimens, history, and nomenclature of pikas. Provides descriptions, locations, and a key for species and subspecies.
Date:
August 21, 1924
Creator:
Howell, Arthur H.
System:
The UNT Digital Library
[Investigation Report from George Woods, March 21, 1943]
Investigation Report from George Woods containing a copy of an attached signed statement by one Logan Pierson for the case of U.S. vs. Plosser et al.
Date:
March 21, 1943
Creator:
Woods, George
System:
The Portal to Texas History
Chemical Research -- U233 Production and Extraction; Report for the Month Ending June 21, 1943
Abstract. The precipitation of Pa233 with MnO2 from a solution of thorium nitrate has been studied in some detail and seems quite satisfactory up to 36 gm Th(HO3)4 4H2O per 100 cc solution. The concentration of Pa233 with respect to the manganese dioxide carrier and the thorium precipitated with the carrier appears to be accomplished quite well by either a series of MnO2 cycles or thorium iodate cycles. Volatility methods for both the separation of Pa233 from the original thorium and for its separation from MnO2 are now under investigation. It has been decided that thorium carbonate will the the thorium compound used in the pile at Site X.
Date:
June 21, 1943
Creator:
Franck, J.
System:
The UNT Digital Library
Determination of Free Nitric Acid in UNH Solutions, Problem Assignment No. 208-X2A, Progress Report
Technical report abstract: Since UNH is a highly dissociated compound which ionizes to NO3 and (UO2), the latter ion being very weakly basic, a solution of pure UNH is quite acid (pH about 3). It is possible to titrate to a phenolphthalein and point with standard caustic solution and obtain a figure which represents the free acid plus the NO3 from the the UNH. However, titration of the free nitric acid alone in such a solution presents quite a problem. By precipitating and removing uranium from solution by means of potassium ferrocyanide, the residual free acid may be titrated directly by means of standard caustic using either methyl red or phenolphthalein indicators, with an error of less than 4%. A method is given to determine formic acid, should that acid be present in the mixture.
Date:
April 21, 1944
Creator:
Parlour, A. K. & Hammond, C. W.
System:
The UNT Digital Library
The Influence of Operation on Tuballoy
An attempt is made to estimate the influence of operation upon the mechanical properties of tubealloy. It is to be emphasized that the work is highly speculative, being base upon a set of judicious assumptions regarding the transport material within the metal and should not be used as a substitute for a set of well-planned experiments. The two principal effects considered are the hardening which results from the atomic displacement produced by the fission fragments and the changes in mechanical properties arising from the presence of the fission products. The principal conclusion to be drawn is that the disruption of the metal which accompanies operation takes place at at sufficiently high rate that it could readily cause serious changes in the mechanical properties of the slups. the reversal of the disruption resulting from thermal effects probably is sufficiently high to prevent serious embrittlement as a consequence of displacement through most of the volume of the slug if not at the surface. On the other hand, the migration of atoms also appears to be sufficiently high that the rare gas products may have time to diffuse to cracks and produce embrittlement.
Date:
April 21, 1944
Creator:
Seitz, Frederick, 1911-2008
System:
The UNT Digital Library
A Sensitive Particle Ionization Chamber for Neutron Detection
Abstract. A particle ionization chamber of sensitivity sufficient to detect a source of one neutron per second has been used to measure the neutron yield from a thick target of sulfur upon bombardment with polonium alpha particles. The high-geometry boron trifluoride chamber used had an efficiency of 1.9 percent for fission neutrons. The neutron yield from a thick target of sulfur was measured by this instrument and found to be .0035 +- .0013 neutrons per million incident polonium alpha particles.
Date:
November 21, 1944
Creator:
Sturm, William J. & Dabbs, John
System:
The UNT Digital Library
A Method for Rolling Uranium Foil
"This report gives briefly a rather simple method for fabricating foils from uranium buttons. Two log sheets one of a U-238 run and one of a U-255 run are given."
Date:
October 21, 1947
Creator:
Bernard, George L., (Jr.)
System:
The UNT Digital Library
Evaluation of Gust and Draft Velocities from Flights of P-61C Airplanes within Thunderstorms June 11, 1947 to July 11, 1947 at Clinton County Army Air Field, Ohio
The gust and draft velocities from records of NACA instruments installed in P-61C airplanes participating in thunderstorm flights at Clinton County Army Air Field, Ohio, from June 11, 1947 to July 11, 1947 are presented.
Date:
January 21, 1948
Creator:
Funk, Jack
System:
The UNT Digital Library
Effect of X Irradiation on the Maturation of the Circulating Reticulocyte
This report studies the effect of x irradiation on the maturation of the circulating reticulocytes, using samples of rabbit blood with and without phenylhydresine- or bleeding-induced anemia and comparing them to the blood of human subjects under similar circumstances.
Date:
June 21, 1948
Creator:
Gaston, Evelyn O. & Jacobson, Leon O.
System:
The UNT Digital Library
General Engineering and Consulting Laboratory "Hot Service" Turbine Pump Progress Report: May 1 to June 15, 1948
Introduction: "This report covers progress on the testing of the General Engineering and Consulting Laboratories Turbine Pump No. 1 from May 1, 1948 to Jun 15, 1948. All testing prior to April 30, 1948 has been described in Redox Experiment Testing Report No. 1 (Document HW-9474) and No. 2 (Document HW-9694)."
Date:
June 21, 1948
Creator:
Stringer, J. T. & Allen, A. W.
System:
The UNT Digital Library
The Determination of Free Nitric Acid in Solutions Containing Uranyl Nitrate, Aluminum Nitrtae and Sodium Dichromate
The following report describes the developmental process of the determination of free nitric acid in solutions containing uranyl nitrate, aluminum nitrate and sodium dichromate.
Date:
October 21, 1949
Creator:
Moore, Robert Lee & Schmidt, H. R.
System:
The UNT Digital Library
Statistical evaluation of calibrartion data-infrared method for determination of % TBP
A report which discusses the data submitted for evaluation. This data is about optical densities from infrared spectrometer readings on eight standard samples, ranging in percent TBP from 6.71 to 17.85.
Date:
March 21, 1950
Creator:
Healy, W. C.
System:
The UNT Digital Library
Monthly Divisional Information Meeting : Isotope Research and Production Division, Y-12
The following report contains papers summarizing the activities of the various sections comprising the Isotope Research and Production Division of Y-12.
Date:
July 21, 1950
Creator:
Carbide and Carbon Chemicals Corporation
System:
The UNT Digital Library
Terminal report on the Radiolanthanum Laboratory
A report which intends to acquaint the reader with the planning of the radiochemical laboratory designed for the analytical control of the radiolanthanum process and to define the terminal status of the design of this laboratory and its equipment.
Date:
July 21, 1950
Creator:
Figenshau, J. K.
System:
The UNT Digital Library
Corrosion of Redox Waste Storage Tank Construction Materials
From introduction:"It was the aim of this investigation to determine the resistance of several materials of construction to current and anticipated and anticipated Hanford separation process waste streams under specific conditions. The corrosion rates of mild steel and austenitic stainless steel and the resistance of several commercial protective coatings were established."
Date:
August 21, 1950
Creator:
Koenig, W. W. & Sanborn, K. L.
System:
The UNT Digital Library
The U²²⁷ Collateral Series
The following report describes data from the continuation of investigations which led to the observation and characterization of five artificial radioactive chains collateral to the natural radioactive families that has lead to the partial identification of one additional chain, collateral to the actinium family.
Date:
February 21, 1951
Creator:
Meinke, W. Wayne; Ghiorso, Albert & Seaborg, Glenn T.
System:
The UNT Digital Library
Mound Laboratory Report for General Research: December 26, 1950 to April 16, 1951
A report of quarterly results of research and development directed towards establishing new techniques and instruments towards improving present methods for determining levels of radioactivity accurately and safely.
Date:
May 21, 1951
Creator:
Baker, W. H.; Combs, J. F.; Rogers, A. J.; Curtis, M. L.; Gray, M. I.; Olt, R. G. et al.
System:
The UNT Digital Library
The Synthetic Liquid Fuel Potential of Arkansas
Report documenting the suitability of Arkansas for plant locations to produce synthetic liquid fuels, based on raw materials such as coal, natural gas, oil shale, and oil-impregnated strippable deposits.
Date:
May 21, 1951
Creator:
Ford, Bacon, and Davis
System:
The UNT Digital Library
Lost Creek (Wamsutter) Schroeckingerite Deposit, Sweetwater County, Wyoming
Summary: The Lost Creek schroeckingerite deposit in Sweetwater County, Wyo., has attracted attention in the past both as an occurrence of comparatively rare minerals and more recently as a possible source of uranium ore. During the summer of 1948 a newly-formed company by the name of Uranium, Inc., explored part of the deposit by bulldozer trenching and drilling. under the technical direction of the Minerals Engineering Company of Grand Junction, Colo. Examination of the significant exposures of the schroeckingerite deposit indicated that the uraniferous beds are discontinuous and that their areal distribution is erratic. The overburden has an average thickness of 2.5 feet.
Date:
January 21, 1952
Creator:
Wyant, Donald G.
System:
The UNT Digital Library
The Effects of Internal Conversion on Critical Mass and Operating Life of a Thermal Reactor
"This report was prepared for preliminary use only in the course of work under W31-109 Eng. 52, and the information contained herein may not be correct or in agreement with more recent experimental and operating data. Any values or opinions expressed in the report may only be those of the author, and the General Electric Company makes no representation or warranty (1) as to the value of this report for any purpose or (2) that any use of the report will not infringe the rights of others."
Date:
July 21, 1952
Creator:
Snyder, T. M.
System:
The UNT Digital Library
Examination of Discharged Process Tubes
Introduction: "The observations reported in this document were obtained by C.H. Pitt during his assignment to the Corrosion Group September through October 1951. The tubes examined were: 1.) 0893-F Discharged for corrosion examination after leaking; 2.) 1488-DR Discharged to determine caused of obstruction; 3.) 2276-D Discharged for corrosion examination; 4.) 2376-D Discharged for corrosion examination; 5.) 1185-H Discharged to evaluate the effect of magnesium front dummies."
Date:
July 21, 1952
Creator:
Dalrymple, R. S.
System:
The UNT Digital Library
Water Adsorbed by Graphite at Various Relative Pressures
Summary: "The quantity of water adsorbed by graphite at various relative pressures has been determined and the data are presented in graphical and tabular form."
Date:
July 21, 1953
Creator:
Spalaris, C. N.
System:
The UNT Digital Library
[Herman Lurie's Weekly Report, August 21, 1953]
Weekly report discussing the state of the raw sugar market, including details for prices and market fluctuations related to weights in tons, regions, distribution, years, and figures.
Date:
August 21, 1953
Creator:
Lurie, Herman
System:
The Portal to Texas History