Resource Type
Partner
Collection
Technical Report Archive and Image Library
740
National Advisory Committee for Aeronautics Collection
509
Office of Scientific & Technical Information Technical Reports
227
TRAIL Microcard Collection
116
Texas State Publications
5
Docs In The News
2
Stillwater History Museum at the Sheerar, Stillwater, Oklahoma
2
General Collection
2
Boy and Girl Scout Annual Reports
1
Federal Communications Reports
1
2 More
Serial/Series Title
NACA Research Memorandums
269
NACA Technical Notes
133
Atomic Energy Commission Reports
113
NACA Technical Reports
54
NACA Technical Memorandums
50
United States Bureau of Mines Reports
47
Hanford Works Reports
33
Report of investigations (United States. Bureau of Mines)
30
HW (Series)
29
United States Geological Survey Reports
27
51 More
States
Some Effects Due to Weighing Polonium on a Quartz-Fiber Microbalance
The quartz-fiber microbalances used in the Mound Laboratory operations are of the conventional Kirk-Craig type, but are housed in vacuum-tight cases which permit foil weighing by remote control.
Date:
May 14, 1949
Creator:
Fox, G. L.; Lowry, P. J. & Rembol, E. A.
System:
The UNT Digital Library
Correlation of Soil Properties with Geologic Information: Report Number 1, Simplification of the Liquid Limit Test Procedure
Introduction: The general project of correlating soil properties with geologic information, one phase of which is described in this report, consists in comparing soil properties with soil types and with their geologic history and environment in order to determine what correlations are possible.
Date:
June 1949
Creator:
Waterways Experiment Station (U.S.)
System:
The UNT Digital Library
The Path of Carbon in Photosynthesis VI.
This paper is a compilation of the essential results of our experimental work in the determination of the path of carbon in photosynthesis. There are discussions of the dark fixation of photosynthesis and methods of separation and identification including paper chromatography and radioautography. The definition of the path of carbon in photosynthesis by the distribution of radioactivity Within the compounds is described.
Date:
June 30, 1949
Creator:
Calvin, M.
System:
The UNT Digital Library
A Two Liquid Phase Distribution Method for the Separation ofMetallic Elements
The general principles of a liquid-liquid solvent extraction method for the separation of metallic elements are outlined.
Date:
August 1, 1949
Creator:
Calvin, M.
System:
The UNT Digital Library
A PreliminaryReport on the Mechanism of the Decomposition ofDiacetyl Peroxide in Acetic Acid
The decomposition of diacetyl peroxide in acetic acid-2-C{sup 14} has been studied, The activity of the products in general confirmed the mechanism of the reaction as proposed by Kharasch and Gladstone, The presence and distribution of activity in the methyl acetate produced in this reaction is not explained by the previously proposed mechanism. There was no appreciable exchange of acetic acid and diacetyl peroxide under the conditions of the reaction. Essentially no exchange of methyl acetate and acetic acid was observed when those reagents mere heated at 100 for five hours.
Date:
December 29, 1949
Creator:
Fry, A.J.; Tolbert, B.M. & Calvin, Melvin
System:
The UNT Digital Library
The Path of Carbon in Photosynthesis VII Respiration andPhotosynthesis
The relationship of respiration to photosynthesis in barley seedling leaves and the algae, Chlorella and Scenedesmus, has been investigated using radioactive carbon dioxide and the techniques of paper chromatography and radioautography. The plants are allowed to photosynthesize normally for thirty seconds in c{sup 14}O{sub 2} after which they are allowed to respire in air or helium in the light or dark. Respiration of photosynthetic intermediates as evidenced by the appearance of labeled glutomic, isocitric, fumaric and succinic acids is slower in the light than in the dark. Labeled glycolic acid is observed in barley and algae. It disappears rapidly in the dark and is maintained and increased in quantity in the light in C0{sub 2}-free air.
Date:
July 21, 1949
Creator:
Benson, A. A. & Calvin, M.
System:
The UNT Digital Library
Relationship Between Logac Counts and Thickness of Slides on which Samples are Mounted
The study was made in an effort to determine experimentally the relationship between Logac 1,2 counts and the thickness of the slide on which a sample is mounted.
Date:
April 5, 1949
Creator:
Curtis, M. L.
System:
The UNT Digital Library
Progress Report March 15, 1949 - April 15,1949
None
Date:
April 20, 1949
Creator:
Kent, J. W.; Christiansen, F. A. & Bolt, R. O.
System:
The UNT Digital Library
Master-Slave Manipulator
A device for manipulating a pair of tongs behind a shielding barrier has been built and tested. It is called a Master-Slave Manipulator because the slave tongs move in exact correspondence with a master handle. The "slave hands" follow the master hands in complete synchronism. This is the first completely master-slave manipulator known to exist and has proved that this type of manipulation is very successful when the unit is prooperly engineered and built.
Date:
March 7, 1949
Creator:
Goertz, R. C.
System:
The UNT Digital Library
Supplemental Technical Report on an Improved Process for the Manufacture of High Purity Calcium, Period Covered November 10, 1948 to January 31, 1949
Abstract. Experimental work was carried out to improve material conversion efficiency and to reduce handling costs inherent in the present process for production of high purity calcium. Charges up to 54 pounds were handled successfully in the equipment available. Material losses were reduced and more complete removal of alkali and alkaline earth metals was effected by controlled pressures of inert gas and by melting under positive pressure of Argon.
Date:
January 31, 1949
Creator:
Brown, H. & Woodberry, P.
System:
The UNT Digital Library
Decomposition of Water at High Temperatures and Pressures Under Reactor Irradiation
Partial abstract: "The investigation of the high temperature and pressure dissociation of water under irradiation was undertaken by the Power Pile Division of Oak Ridge National Laboratory in an effort to determine the degree of importance of the phenomenon with respect to the design of a high temperature water-cooled power reactor. Theory and past experimentation indicate that net steady-state dissociation is determined by the rates of the dissociation and recombination reactions under the imposed conditions, the dissociation rate being essentially a function of flux and the recombination rate essentially a function of temperature" (p. 3).
Date:
September 16, 1949
Creator:
Fromm, L. W.
System:
The UNT Digital Library
Fast Neutron Irradiation Procedure
This report discusses a series of investigations for biological and biochemical study of chronic exposures of animals to neutrons through an irradiation procedure.
Date:
1949
Creator:
McDonald, Ellice, 1876-
System:
The UNT Digital Library
The Spectrochemical Analysis of Hafnium and Zirconium
Abstract: "The analysis of hafnium and zirconium by the copper spark technique is presented for solutions of HCl, HF, and HClO4 acids. The special techniques of electrode protection and vacuum drying of perchloric acid samples are outlined. Also given are the working curves and deviations of both elements."
Date:
March 16, 1949
Creator:
Conway, John G. & Moore, Milton F.
System:
The UNT Digital Library
The Preparation and Properties of Uranium Trifluoride
From abstract: "The means of preparing uranium trifluoride are discussed. The most practical method is the reduction of uranium tetrafluoride with uranium although reduction with hydrogen or atomic hydrogen may also be feasible...A literature survey and discussion of other means of preparation are given."
Date:
1949
Creator:
Warf, James C.
System:
The UNT Digital Library
Remote Control for Continuous Liquid Extractors
Abstract: An electronic device has been developed for indication at a distance and simultaneous automatic correction of changes in density, temperature, and interface level of polyphase solutions.
Date:
1949
Creator:
Schenck, Remsen T.
System:
The UNT Digital Library
Direct calorimetric study of fission product decay in active slugs
Report describing the radioactive energy output of U slugs from the Clinton pile. Outputs were measured in a calorimeter. Results have been calculated to watts per gram and compared with previous reports.
Date:
1949
Creator:
Day, R. A. & Cannon, C. V.
System:
The UNT Digital Library
Report on Studies Concerned With Organic Compounds of Uranium
Report discussing the research done on volatile "X" compounds during the period from February 1942 to March 1943.
Date:
1949
Creator:
Gilman, Henry & Jones, R. G.
System:
The UNT Digital Library
Photometric Determination of Copper, Manganese, Molybdenum, Nickel, Titanium, and Vanadium in Uranium bearing materials
Report discussing experiments on the photometric determination of various elements in the presence of trace amounts of Uranium.
Date:
1949-03-09?
Creator:
Petretic, G. J. & Rodden, Clement J.
System:
The UNT Digital Library
Approximate calculation of the neutron flux from a plane source in an infinite medium where the nuclear cross sections vary with the energy and with the distance from the source, for energies above 5 Mev
Report detailing the approximate calculation of the neutron flux from a plane source in an infinite medium.
Date:
1949
Creator:
Murray, F. H.
System:
The UNT Digital Library
Nomograms for Obtaining the Compound Composition of Hydrated Limes from the Oxide Analysis
Report with two nomograms presented for rapidly obtaining the compound composition of hydrated limes from the oxide analysis. The general nomogram can be applied to any commercial hydrated lime and gives values accurate to within 0.3 percent while the special nomogram is applicable only to regularly hydrated and highly hydrated dolomitic limes and is accurate to within 0.1 percent.
Date:
December 30, 1949
Creator:
Levin, Ernest M.
System:
The UNT Digital Library
A Modified Decade Scaler: Final Report on Project Authorization Number CMR-3-5
Final report describing the development and usage of an automatic decade scaler which operates for a fixed number of counts, developed for use with a Geiger tube.
Date:
June 9, 1949
Creator:
Rupert, George N.
System:
The UNT Digital Library
Investigation of Lower Coal Beds in Georges Creek and North Part of Upper Potomac Basins, Allegany and Garrett Counties, Maryland: Reserves, Petrographic and Chemical Characteristics of Coals, and Stratigraphy of Area
Report presenting the results of an investigation into various charactaristics that could increase the output lower, thinner coal beds, to replace the upper coal beds which are nearing exhaustion.
Date:
1949
Creator:
Toenges, Albert L.; Turnbull, Louis A.; Williams, Lloyd & Smith, H. L.
System:
The UNT Digital Library
Methods of Opacity Calculations
"Methods for calculating the opacity of materials at high temperatures are discussed in this report. Minor improvements are outlined for the treatment of continuous absorption processes, and a small error usually made in treating the scattering process is corrected. In contrast to all previous calculations of opacity, the effect of line absorption is carefully examined, for it may well be the dominant process under certain conditions of temperature and density. Detailed methods for calculating the line absorption contribution are, therefore, developed. To illustrate the principles involved, the opacity of pure iron at a temperature of 1000 volts and normal density is worked out in detail" (p. ii).
Date:
1949
Creator:
Mayer, Harris
System:
The UNT Digital Library
The Thermodynamic Properties and Equilibria at High Temperatures of the Compounds of Plutoniun
None
Date:
February 1, 1949
Creator:
Brewer, Leo; Bromley, LeRoy; Gilles, Paul W. & Lofgren, Norman L.
System:
The UNT Digital Library