Collection
Technical Report Archive and Image Library
1,347
National Advisory Committee for Aeronautics Collection
812
Office of Scientific & Technical Information Technical Reports
765
Texas Attorney General Opinions
335
TRAIL Microcard Collection
281
USGS Topographic Map Collection
158
Texas State Publications
40
Government Documents A to Z Digitization Project
20
USDA Farmers' Bulletins
15
Boy and Girl Scout Annual Reports
2
8 More
Serial/Series Title
NACA Research Memorandums
493
NACA Technical Notes
273
Atomic Energy Commission Reports
171
Oak Ridge National Laboratory Reports
120
CF (Series)
106
7.5 Minute Series (Topographic)
99
United States Geological Survey Reports
79
Trace elements investigations report
67
University of California Radiation Laboratory Reports
60
15 Minute Series (Topographic)
50
120 More
States
2,674 Matching Results
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11,400 KW Nuclear Power Plant Employing an Organic Moderated Reactor: Preliminary Description
Abstract: The preliminary design is described for a small electric-power-generating plant powered by an organic moderated reactor. System and component requirements are discussed and possible design configurations and equipment are described.
Date:
1957
Creator:
Wheelock, C. W.
Object Type:
Report
System:
The UNT Digital Library
15 MW Gas-Cooled Closed-Cycle Reactor Power System Study: Final Report, Volumes 1-2
This report covers a feasibility study for a 15 megawatt gas cooled reactor power system, conducted by the Ford Instrument Company Division of the Sperry Rand Corporation during the months of March to August 1956.
Date:
April 1, 1957
Creator:
Ford Instrument Company
Object Type:
Report
System:
The UNT Digital Library
20,000 KW Nuclear Power Plant Study for United States Atomic Energy Commission
Introduction: In September of 156, Gilbert Associates, Inc., entered into a contract with the United States of America, acting through the United States Atomic Energy Commission, for the study and preliminary design of a nuclear power plant being considered for integration into a central station power system at an overseas site.
Date:
July 7, 1957
Creator:
Gilbert Associates, Inc.
Object Type:
Report
System:
The UNT Digital Library
20-MW Dâ‚‚O-Moderated Experimental Boiling Water Reactor Design Studies
None
Date:
February 1957
Creator:
Iskenderian, H. P.
Object Type:
Report
System:
The UNT Digital Library
AN 80 MEGAWATT AQUEOUS HOMOGENEOUS BURNER REACTOR. Reactor Design and Feasibility Problem
An 80 Mw aqueous homogeneous burner reactor suitable for producing 20 Mw of electricity at a remote location is described. The reactor fuel consists of a light water uranyl sulfate solution which acts as its own moderator and coolant. The uranium is highly enriched (93% U/sup 235/). The primary considerstions for the design were simplicity and reliability of the components, automatic demand control and safe for any load change, full xenon override not required, possibility of construction within the immediate future, and economic operation not the cortrolling factor. Reasonably complete studies are presented for the reactor physics, safety, stability, chemistry, hent transfer, and operation of the system. (auth)
Date:
August 1, 1957
Creator:
Chapman, R.H.; Collins, H.L.; Dollard, W.J.; Fieno, D.; Hernandez- Fragoso, J.; Miller, J.W. et al.
Object Type:
Report
System:
The UNT Digital Library
100-B Area flow analysis
Results of experimental programs indicate that it might be desirable in the future to modify the existing reactors by replacing the aluminum process tubes with tubes made of a zirconium alloy. The zirconium tubes would be more corrosion resistant than the aluminum ones and would also be stronger at higher temperatures. These new tubes would have the same outer diameter as the present tubes (for ease of handling and in order to provide adequate graphite cooling) but would have a thinner wall (since zirconium alloy is both stronger and more expensive than aluminum). The inner diameter of the new tubes would, therefore, be greater than in the present tubes. In addition to the tube change, it might also be desirable to replace the existing solid fuel elements with those known as ``I&E`` alements. These pieces would be similar to the present elements except for a longitudinal hole which would allow the passage of cooling vater through the center. The element would then be Internally and Externally cooled, and would have a more uniform temperature distribution. The combination of the larger tube inside diameter and the central hole in the fuel element would result in reduced friction loss for the reactor …
Date:
June 1, 1957
Creator:
Bainard, W. D.
Object Type:
Report
System:
The UNT Digital Library
183 B-C cross tie justification and scope
After the present solid slugs are replaced with the new I&E elements` in the 105-B reactor, the friction loss for the reactor cooling water will be decreased with a resulting opportunity for increase in flow through the reactor. The amount that this flow could be increased is limited by the capacity of the B water plant as well as the reactor itself. It is possible that there will be a shortage of filtered water at 183-B during the critical periods of each year. To overcome this possible shortage of water it has been proposed to construct a thirty inch tie line from the 183-C reservoir to the 183-B clear-well to supply filtered water to 183-B by gravity flow from 183-C. This report presents justification and the scope of this project.
Date:
December 2, 1957
Creator:
Brinkman, L. B.
Object Type:
Report
System:
The UNT Digital Library
Abbott Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1957
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Abnormal grain growth in M-252 and S-816 alloys
Report discussing an experimental investigation was carried out on air- and vacuum-melted M-252 and S-816 alloys to find conditions of heating and hot-working which resulted in abnormal grain growth. The experiments were mainly limited to normal conditions of heating for hot-working and heat treatment and normal temperatures of solution treatment were used to allow grain growth after susceptibility to abnormal grain growth was developed by various experimental conditions. Results indicated that small reductions of essentially strain-free metal were the basic cause of such grain growth.
Date:
November 1957
Creator:
Decker, R. F.; Rush, A. I.; Dano, A. G. & Freeman, J. W.
Object Type:
Report
System:
The UNT Digital Library
Abnormal grain growth in nickel-base heat-resistant alloys
From Introduction: "The data included in this report for Nimonic 80A alloy, for instance, represent experiments carried out to help clarify a production problem of grain-size control in an alloy which has been extensively used. The general procedure of the investigation was to carry out controlled laboratory experiments on samples of bar stock to find conditions of heating and hot-working which resulted in abnormal grain growth."
Date:
December 1957
Creator:
Decker, R. F.; Rush, A. I.; Dano, A. G. & Freeman, J. W.
Object Type:
Report
System:
The UNT Digital Library
An Abrasive Cutoff Machine for Metallurgical Research on Radioactive Materials
An abrasive cutoff machine design, based upon a previous model, (1) was undertaken to provide for the sampling of radioactive material. the design objective was; first, to provide samples for metallographic examination, second, to provide samples for physical and mechanical property testing, and, third, to meet the following design requirements: 1. Remote operation. 2. Airborne contamination control. 3. Radioactive waste collection. 4. Remote maintenance.
Date:
January 5, 1957
Creator:
Boyd, C. L.
Object Type:
Report
System:
The UNT Digital Library
The Absolute Abundance of the Nitrogen Isotopes in the Atmosphere and Compressed Gas From Various Sources
None
Date:
July 23, 1957
Creator:
Junk, G. & Svec, H. J.
Object Type:
Report
System:
The UNT Digital Library
Accelerations in fighter-airplane crashes
From Introduction: "This report describes some measurements of these quantities obtained by crashing fighter aircraft under circumstances approximating those observed in service."
Date:
November 4, 1957
Creator:
Acker, Loren W.; Black, Dugald O. & Moser, Jacob C.
Object Type:
Report
System:
The UNT Digital Library
ACCEPTANCE SAMPLING CRITERIA FOR THE CONSUMER
None
Date:
August 1, 1957
Creator:
Hurford, Allen F.
Object Type:
Report
System:
The UNT Digital Library
Accident in Continuous-Dissolver Pilot Plant of Fluoride Volatility Project on May 15, 1957
A series of explosions, estimated at five, occurred over a period of ten seconds within the continuous dissolver pilot plant, of the Fluoride Volatility Project on May 15, 1957. The explosive reactions occurred in the dissolver vessels as a result of violent chemical reactions between uranium and an interhalogen mixture. Just what the conditions were which triggered the explosions, have not been definitely established. Nevertheless, based upon the evidence which has been collected, several possible explanations, listed according to probability, are presented. A number of recommendations are included to be followed before operation of the pilot plant is resumed. These recommendations relate to additional laboratory research, equipment design, facility design, and use of a review committee. Safety rules for handling BrF/ sub 3/, BrF/sub 5/, ClF/sub 3/, and Br/sub 2/ are appended. (C.H.)
Date:
July 10, 1957
Creator:
Strickland, G.; Horn, F. L.; Johnson, R. & Dwyer, O. E.
Object Type:
Report
System:
The UNT Digital Library
Accident in Continuous-Dissolver Pilot Plant of Fluoride Volatility Project on May 15, 1957
The so-called Fluoride Volatility Processes refer to several proposed non-aqueous methods of processing irradiated fuel elements. In each of these methods, the uranium is fluorinated to UF6 and then decontaminated by distillation. One of those methods, involving the direct fluorination of the uranium by bromine trifluoride (BTF), has been under investigation at BNL since 1950. In 1952, it was demonstrated at BNL that uranium, as UF6, could be satisfactorily decontaminated by distillation in small-scale pilot plant equipment; end in 1953, BNL undertook the job of determining the technical feasibility of a continuous dissolver on a pilot-plant scale. The reason for the project was that the economic superiority of the process seemed to depend upon its amenability to continuous operation.
Date:
July 10, 1957
Creator:
Strickland, Gerald; Horn, F. L.; Johnson, Richard & Dwyer, O. E.
Object Type:
Report
System:
The UNT Digital Library
Accidents from explosives at metal and nonmetallic mines
Circular produced by the U.S. Bureau of Mines to promote safety through a series of reports on accident prevention in mines. According the the scope statement, "This is the fourth section of the revised series of circulars that cover various phases of accident prevention in metal and nonmetallic mines; it give information on accidents and injuries from storing, handling, and using explosive in metal and nonmetallic mines and discusses the precautions by which they can be prevented" (p. 2).
Date:
1957
Creator:
Cash, Frank E.
Object Type:
Report
System:
The UNT Digital Library
Accurate Weighing With the Microchemical Balance
None
Date:
August 1, 1957
Creator:
Flikkema, D. S.
Object Type:
Report
System:
The UNT Digital Library
Acid Formation in the Radiolysis of Phosphorus Esters
The radiolytic decomposition of tributyl phosphate has been show by burr to product gases, acids, and polymers. the acids that are formed can limit the usefulness of tributyl phosphate for the processing of radioactive materials. The study of acid formation on radiolysis therefor becomes important to us for the understanding of the mechanism of acid formation, the influence of added materials and the effect of the structure of organo- phosphorous compounds. Samples of purified esters have been irradiated in the ORNL cobalt source. Conclusions: (1) The formation of acid from tributyl phosphate during irradiation with cobalt gamma rays involves a mechanism that is not a primary step. Evidence has been obtained for a secondary reaction that is minimized by the presence of certain compounds. (2) Toluene acting as an inhibitor for radiolytic formation of acid may indicate the usefulness of an aromatic hydrocarbon diluent in processing. (3) The aromatic hydrocarbon, when phenyl, was not effective when it was part of the molecule. (4) First tests revealed that dibutyl butyl-phosphonate produced less acid the TBP and may warrant further consideration for process application.
Date:
April 3, 1957
Creator:
Baldwin, W. H.
Object Type:
Report
System:
The UNT Digital Library
Action and Emission Spectra of the Luminescence of Green PlantMaterials
The action and emission spectra of the delayed light emission from Chlorella, Nostoc, and spinach chloroplasts have been measured. The action spectra for Chlorella and for spinach chloroplasts are quite similar to the absorption spectra of these materials. The action spectrum for Nostoc, on the other hand, shows a relatively low activity for chlorophyll and carotenoids and a high activity for phycocyanin. The emission spectra of these materials demonstrates that the luminescence is the result of a transition between the first excited singlet state and the ground state of chlorophyll. Low-temperature studies suggest that the triplet state of chlorophyll is not involved at all in the luminescence of spinach chloroplasts. There is some indication that part of the light emitted from Nostoc is due to a phycocyanin transition.
Date:
December 29, 1957
Creator:
Tollin, G.; Fujimori, E. & Calvin, Melvin
Object Type:
Report
System:
The UNT Digital Library
ACTIVATION CROSS SECTION OF Na$sup 23$ AROUND 3 KEV
The activation cross section of sodium in the range from thermal energy through the 3-kev resonance is generally assumed to be given by the one-level BreitWigner formula, the GAMMA /sub gamma / being selected to describe correctly the known thermal absorption cross section. The contribution of this resonance to the resonance activation integral then turns out to be 0.12 barns. This somewhat indirectly inferred value is considerably larger than the value given by Dancoff et al., in an old paper, the latter value being based on experimental work. It is shown in the present memo, that Dancoff's actual measurements are quite consistent with the Breit-Wigner formula and the above mentioned GAMMA /sub gamma /. The discrepancy is a result of Dancoff's transition from the actual measurements to the resonance integral, this transition being based on data that is now obsolete. (auth)
Date:
February 1, 1957
Creator:
Ergen, W.K.
Object Type:
Report
System:
The UNT Digital Library
ACTIVITIES IN LIQUID AND SOLID METAL SYSTEMS. Progress Report for February 1, 1957 to January 31, 1958
The results of the work on activities is the Ma-- Pb--Bi alloys, solubility of Fe--Ni alloys in Pb, and phase distribution in Fe--Ni-- Pb and Fe-- Ni-- Pb--C systems are briefly summarized. (For preceding period see AECU3385.) (J.E.D.)
Date:
November 1, 1957
Creator:
Elliott, J.F.
Object Type:
Report
System:
The UNT Digital Library
Adamsville Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1957
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Addicks Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1957
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History