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Serial/Series Title
Atomic Energy Commission Reports
21
United States Geological Survey Reports
20
United States Bureau of Mines Reports
17
Argonne National Laboratory Reports
9
National Bureau of Standards Reports
9
General Electric Company Atomic Power Reports
8
NACA Technical Memorandums
7
Bulletin of the United States Geological Survey
6
GEAP (Series)
6
Oak Ridge National Laboratory Reports
6
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103 Matching Results
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Welding Rustproof Steels
The following experimental results will perhaps increase the knowledge of the process of welding rustproof steels. The experiments were made with two chrome-steel sheets and with two chrome-steel-nickel sheets having the composition shown in Table I.
Date:
September 1929
Creator:
Hoffmann, W.
Object Type:
Report
System:
The UNT Digital Library
Design and Fabrication of Pellet Fuel Rods Clad With Thin Wall Stainless Steel
Summary: Stainless steel clad nuclear fuel cycle costs can be reduced to those associated with Zircaloy clad fuel or potentially lower by reducing the thickness of the clad tube wall until performance penalties offset the savings associated with the reduction in parasitic neutron absorption. To demonstrate the feasibility and investigate performance capabilities of thin clad fuel rods for power reactor application an assembly was fabricated with 0.0127 cm (5 mil) thick stainless steel cladding tubes for irradiation testing in the Vallecitos Boiling Water Reactor (VBWR). The fuel bundle was placed in the VBWR and irradiation was begun in November, 1961. The irradiation is scheduled to continue until the target exposure of 2.74 x 10(20) fissions/cc (10,000 MWD/T of uranium) average burnup is reached. Destructive examinations of fuel rods will be performed at regular intervals throughout life to determine fuel rod performance.
Date:
February 1964
Creator:
Hoffmann, J. P.
Object Type:
Report
System:
The UNT Digital Library
A Uranium Dioxide Fuel Rod Center Melting Test in the Vallecitos Boiling Water Reactor
Technical report describing that as part of the AEC Fuel Cycle Program, tests are being conducted to evaluate the significance of current fuel design limitations that do not permit the maximum fuel temperature to exceed the melting point of UO2. The reliability of prediction of the fuel rod operating conditions that will cause melting of the UO2 was evaluated by means of a calibration test conducted in the Vallecitos Boiling Water Reactor. Conclusions: (a) The central portion of the 3.15-cm diameter uranium dioxide fuel column melted. It appears that the UO2 was molten to a radius of 1.22 cm in the peak power region. The maximum extent of melting probably occurred during the peak power run when the kdT in this region of the rod reached 171 watts cm. The estimated radius of melting from metallographic examination indicates the kdT for sintered UO2 is 89 watts/cm. This supports a calculated estimate for sintered UO2 thermal conductivity published by D. R. deHalas and G. R. Horn. The results of the previous calibration run and subsequent experimental data by Lyons are also consistent with the value. This conclusion is contingent on the interpretation of the post-irradiation crystal structure of the UO2. Insufficient …
Date:
November 15, 1963
Creator:
Williamson, H. E. & Hoffmann, J. P.
Object Type:
Report
System:
The UNT Digital Library
Dispersion of the Neutron Emission in U235 Fission
The following report discusses experiments made during 1944 to develop the theory for the neutron intensity fluctuations of a water boiler.
Date:
1956
Creator:
Feynman, Richard P.; De Hoffmann, F. & Serber, R.
Object Type:
Report
System:
The UNT Digital Library
Coal Composition, Coal Plasticity, and Coke Strength
From Abstract: "Results of linear correlations of two to four variables by the least-squares method are presented. The variables includes 63 parameters representing coal composition, coal plasticity, and coke strength. The composition parameters are based on chemical analyses; the plasticity parameters, on three plastometer and dilatometer tests and four miscellaneous tests; and cok-strength parameters, on three ASTM indices."
Date:
unknown
Creator:
Wu, W. R. K. & Frederic, W. H.
Object Type:
Report
System:
The UNT Digital Library
Geologic History of the Yosemite Valley
The principal result of the investigations upon which this report is based is the determination within narrow limits of the preglacial depth of the Yosemite Valley and of other facts concerning its preglacial development which permit fairly definite estimates of the proportionate shares of work performed by stream and by glacier. The investigations comprise a detailed survey of the glacial and geomorphologic features of the Yosemite region and an equally intensive study of its rock formations, supplemented by reconnaissance work of both kinds in adjoining parts of the Sierra Nevada.
Date:
1930
Creator:
Matthes, François E.
Object Type:
Report
System:
The UNT Digital Library
North American Geology, Paleontology, Petrology, and Mineralogy for the Year 1896
A paper containing both a bibliography and index. It shows the examined publications which each pertain to either paleontology, mineralogy, petrology, and geology.
Date:
1897
Creator:
Weeks, Fred Boughton
Object Type:
Report
System:
The UNT Digital Library
Fuel Cycle Program Progress Report: Fourteenth Quarter, October-December 1963
Quarterly progress report discussing activities related to the Vallecitos Boiling Water Reactor (VBWR) and related facilities.
Date:
January 15, 1964
Creator:
Howard, C. L.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Uranium-Vanadium Deposits on the Vegetation of the Colorado Plateau
Report discussing a study on "the relation of plants to carnotite deposits in several districts of the Colorado Plateau...Basic geobotanical studies were made largely in the Yellow Cat district, near Thompson, Grand County, Utah."
Date:
October 1951
Creator:
Cannon, Helen L.
Object Type:
Report
System:
The UNT Digital Library
Fuel Cycle Program Progress Report: Fifteenth Report, January-June 1964
Quarterly progress report discussing activities related to the Vallecitos Boiling Water Reactor (VBWR) and related facilities.
Date:
July 15, 1964
Creator:
Howard, C. L.
Object Type:
Report
System:
The UNT Digital Library
On the Thermochemistry of the Rare Earths III : The Heats of Solution and Formation of the Anhydrous Iodides of the Rare Earths
In a previous report (NP-2010) the authors reported on the heats of solution of the metals and the anhydrous chlorides of the rare earths as well as on the heats of formation of the chlorides. The variation of the heats of solution of the chlorides suggested an investigation of the bromides and the iodides which is reported in this publication.
Date:
1941
Creator:
Hohmann, Emil & Bommer, Heinrich
Object Type:
Report
System:
The UNT Digital Library
Foaming of Aircraft-Engine Oils as a Problem in Colloid Chemistry - 1
Report presenting an investigation conducted on the foaming characteristics of representative aircraft-engine lubricants in order to arrive at an adequate theory of the foaming of such oils. Methods of measuring foaming are compared and analyzed for their significant factors.
Date:
September 1944
Creator:
McBain, J. W.; Ross, S.; Brady, A. P.; Robinson, J. V.; Abrams, I. M.; Thorburn, R. C. et al.
Object Type:
Report
System:
The UNT Digital Library
Bulletin of the United States Geological Survey No. 90
Report describing work done in the division of chemistry and physics during the fiscal year of 1891. It includes summaries with findings for much of the research.
Date:
1892
Creator:
Powell, J. W.; Clarke, F. W. & Schneider, E. A.
Object Type:
Report
System:
The UNT Digital Library
UO2 Pellet Thermal Conductivity From Irradiations With Central Melting
Abstract: Continued irradiation experience under the AEC - Euratom, UO2 High Performance Program provided five separate and distinct sets of data on UO2 thermal conductivity. Four of these results are expressed in terms of the value of the thermal conductivity. The first two of these measurements were applicable -- strictly -- to poly crystalline UO2. Recently, three additional sets of measurements have been obtained -- all pertinent to UO2 after the formation of large columnar grains. The extent of melting in the experiments on which the results are based ranges from slight, to greater than 70 percent of the fuel cross section. The conclusions from all of these thermal conductivity measurements considered together are: (1) The true value of the UO2 conductivity integral form 0 degrees C to melting (2805 - 15 degrees C) lies in the range from 90 to 96 W/cm. The most probable value is closer to 90 W/cm. To ensure no central melting and the associated clad swelling the maximum thermal performance level for solid pellet, UO2 fuel rods should not exceed 90 W/cm. (2) Any improvement in thermal conductivity due to the formation of large, columnar UO2 grains is small and not detectable within the …
Date:
July 1964
Creator:
Lyons, M. F.; Coplin, D. H.; Pashos, T. J. & Weidenbaum, B.
Object Type:
Report
System:
The UNT Digital Library
On the Thermo-Electric Measurement of High Temperatures
From preface: The present publication is the first contribution to a research on the physical constants of rocks; the experiments of which are to follow a general plan devised by Mr. Clarence King, former Director of the U. S. Geological Survey.
Date:
1889
Creator:
Barus, Carl
Object Type:
Report
System:
The UNT Digital Library
Materials Technology for Coal-Conversion Processes Quarterly Report: January-March 1981
Quarterly report of the Argonne National Laboratory Materials Science Division regarding the economical, reliable, and safe conversion of coal into clean and usable alternate fuels through the use of durable materials of construction.
Date:
1980?
Creator:
Argonne National Laboratory. Materials Science Division.
Object Type:
Report
System:
The UNT Digital Library
Methods of Analyzing and Testing Coal and Coke
From Abstract: "This bulletin presents all analytical and test methods regularly used by Bureau of Mines laboratories for characterizing coal and coke."
Date:
January 1966
Creator:
United States. Bureau of Mines.
Object Type:
Report
System:
The UNT Digital Library
Mammals of the La Selva-Braulio Carrillo Complex, Costa Rica
Summary of 142 species of mammals of Costa Rica, including geographical distribution, subspecies, last documented sighting in Costa Rica, and origin of specimen examined for each species.
Date:
December 1989
Creator:
Timm, Robert M.; Wilson, Don E.; Clauson, Barbara L.; LaVal, Richard K. & Vaughan, Christopher S.
Object Type:
Report
System:
The UNT Digital Library
Proportional Fission Neutron Counters
Abstract: Some proportional fission neutron counters are described with information on methods of preparation and details of a circuit for a portable model. The portable instrument has an efficiency of .01% for neutrons from polonium beryllium sources.
Date:
March 26, 1951
Creator:
Rohr, R. C.; Rohrer, E. R. & Macklin, R. L.
Object Type:
Report
System:
The UNT Digital Library
The Coal Resources of the Yukon, Alaska
An examination of coal deposits along the Yukon River conducted in 1902 mostly along the river banks from Dawson, Yukon to the delta.
Date:
1903
Creator:
Collier, Arthur J.
Object Type:
Report
System:
The UNT Digital Library
High-Temperature Cyanide Leaching of Platinum-Group Metals from Automobile Catalysts--Pilot Plant Study
From abstract: The U.S. Bureau of Mines Reno Research Center investigated, developed, and patented a high temperature cyanide leaching process for recovering platinum-group metals (PGM) from automobile catalysts. A batch pilot plant was constructed at the center and operated to demonstrate this technology to industry.
Date:
1995
Creator:
Kuczynski, R. J.; Atkinson, G. B. & Dolinar, W. J.
Object Type:
Report
System:
The UNT Digital Library
Pulsed Neutron Experiments With Fast Assemblies
"The pulsed source technique consists of introducing repeated short bursts of neutrons into a subcritical assembly, and following the decay of the leakage flux as a function of time...It is noted that plotting the decay constant as a function of buckling gives an apparently accurate way to extrapolate to prompt critical. The pulsed source technique can also be used to calibrate control rod and poison worth, and will give some estimate of the prompt neutron lifetime."
Date:
October 31, 1957
Creator:
Bengston, Joel & Passell, Lawrence
Object Type:
Report
System:
The UNT Digital Library
Technical report of the 1928 Rhon soaring-flight contest
Report presenting some information on the gliders that participated in the 1928 Rhön soaring flight contest. Almost all of the gliders represented an improvement over gliders used in the previous years. A great increase in the skill of the glider pilots is also noted.
Date:
May 1929
Creator:
Lippisch, A.
Object Type:
Report
System:
The UNT Digital Library
Chemistry of Cement: Proceedings of the Fourth International Symposium, Volume 1, 1960
Document containing principle and supplementary papers presented at the Fourth International Symposium on the Chemistry of Cement, as well as discussions of those papers by members of the Symposium. Index begins on page 551.
Date:
August 31, 1962
Creator:
United States. National Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library