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LITERATURE SEARCH ON LEAD-BISMUTH ALLOYS
BS>The use of a lead-bismuth alloy as a coolant in the removal of heat from power-generating nuclear reactors was considered with the possibility that its ternary alloy with uranium or plutonium might be of use in a reactor of the circulating-liquid-fuel type. Information collected from the literature covering phase-equilibrium studies, physicalproperty data, and reactivity of this alloy toward other substances is presented. (auth)
Date:
February 14, 1950
Creator:
Lee, M.E.
Object Type:
Report
System:
The UNT Digital Library
Interaction of xenon light with the surface of 304 stainless steel
Laser amplifier frames fabricated from Type 304 stainless steel are known to cause damage to glass lenses by ejecting particles which are deposited on the lenses. High energy pulses of xenon light interact with the steel surface to produce damage sites. Heat treatment and surface cleaning procedures greatly affect the surface stability of the steel and influence contamination generated by the steel. It is believed that inclusions and/or carbides play a role, and the size of damage sites observed on glass correlate with the size of nonmetallic phases in the steel. Thermal etching of the steel was found to be a principle mechanism of surface damage caused by the high energy xenon light.
Date:
February 14, 1978
Creator:
Krenzer, R. W.
Object Type:
Report
System:
The UNT Digital Library
[National Endowment for the Arts Visual Arts Special Projects, February 14, 1995]
Photocopy of a letter from Leilani Lattin Duke, Director of the Getty Center, to the RIG Directors. In regards to the National Endowment for the Arts, NEA, Visual Arts Special Projects. Duke has enclosed the results of the eight arts education program funded by NEA to the directors believing the information is useful for them. Enclosed with the letter is the Arts in Education Special Projects Handbook.
Date:
February 14, 1995
Creator:
Duke, Leilani Lattin
Object Type:
Letter
System:
The UNT Digital Library
LLL Geothermal Energy Development Program. Status Report, January 1974--January 1975. [Impulse Turbines, Total Flow Conversion Systems]
None
Date:
February 14, 1975
Creator:
Austin, A. L.
Object Type:
Report
System:
The UNT Digital Library
Analysis of LOFT steam generator main feed piping loop seal modification
The stress analysis is presented for the proposed loop seal modification to the LOFT Steam Generator Main Feed Piping. THE SAP IV finite element computer program was used to analyze normal, upset, emergency, and faulted conditions. Results of the analysis indicate that the modified main feed piping system will satisfy all structural adequacy criteria specified in Subarticle NC-3650 of the ASME Boiler and Pressure Vessel Code. Results also show that the isolation snubber configuration, specified in LTR 115-11, will also be adequate for the piping configuration analyzed.
Date:
February 14, 1978
Creator:
Nitzel, M.E.
Object Type:
Report
System:
The UNT Digital Library
Analysis of potential nonelectrical applications of geothermal energy and their place in the national economy
None
Date:
February 14, 1975
Creator:
Reistad, G.M.
Object Type:
Report
System:
The UNT Digital Library
DISSOLUTION OF BeO-AND Al$sub 2$O$sub 3$-BASE REACTOR FUEL ELEMENTS. PART I
Aqueous methods for recovering uranium from BeO- and Al/sub 2/O/sub 3/- base gas-cooled-reactor fuel elements are being evaluated. Two methods for processing Hastelloy-X--clad pelletized BeO-base fuels containing 60 to 70% UO/ sub 2/, such as the GCRE and MGCR, seem feasible. One method involves mechanical stripping or chopping of the cladding followed by leaching of the uranium from the fuel pellets with boiling 6-l3M HNO/sub 3/. In the other method the cladding and UO/sub 2/ are dissolved in boiling 2M HNO/sub 3/-4M HCl. In either case, most of the BeO matrix remains as an undissolved residue. Pellets containing 70% UO/sub 3/ dissolved completely in less than 20 hr in boiling 8M HNO/sub 3/ containing either 2M H/sub 2/SO/sub 4/ or 0.5M HF, producing solutions containing 4 g of uranium per liter. Fuels of high BeO content, e.g. BeO--5% UO/sub 2/, dissolved only slowly in boiling aqueous reagents. Highest initial rates were in sulfuric acid solutions, log (Rate, mg min/sup -1/cm/sup -2/) = 0.223 (H/sub 2/SO/ sub 4, M) - 2.8l and in HF--NH/sub 4/F solutions. ln boiling 5-8M NH/sub 4/F the initial dissolution rate increased from 0.07 to 3.5 mg min/sup -1/cm/sup -2/ as the HF concentration increased from 0 …
Date:
February 14, 1962
Creator:
Warren, K S; Ferris, L M & Kibbey, A H
Object Type:
Report
System:
The UNT Digital Library
Development of copper sulfide/cadmium sulfide thin film solar cells. First technical progress report, 13 July 1979 to 12 October 1979
Preparation of CdS films by evaporation from a single graphite source, as generally used by the Institute of Energy Conversion (IEC) group at the University of Delaware, has been implemented. Previously at Westinghouse, four evaporation sources were used to permit uniform coverage of large area substrates. The graphite source used in this period is somewhat smaller than the IEC design to permit accommodation to the heater geometry currently available. Initial efforts with the single source evaporation have been on characterizing the thickness profiles of the deposited films. This is needed to permit selection of conditions for obtaining films of about 30..mu..m thickness over the central 4 cm x 4 cm area of the substrate. Barrier processing according to the details of IEC method has been used on four-source CdS films. To date the best cells have only been about 1% efficient. Low short circuit current density values (approx. 5 mA/cm/sub 2/) have been the biggest problem. Annealing in 6% H/sub 2//Ar mixtures at 170/sup 0/C after electrode grid evaporation generally has resulted in reduced values of J/sub sc/. Plans for the next period include the use of single source films for cell processing and the use of small area diode …
Date:
February 14, 1980
Creator:
Szedon, J. R.; Shirland, F. A.; Stoll, J. A. & Dickey, H. C.
Object Type:
Report
System:
The UNT Digital Library
PWR blowdown heat transfer separate-effects program: thermal-hydraulic test facility experimental data report for test 104
Reduced instrument responses are presented for Thermal-Hydraulic Test Facility (THTF) test 104, which is part of the ORNL Pressurized-Water Reactor (PWR) Blowdown Heat Transfer Separate-Effects Program. The objective of the program is to investigate the thermal-hydraulic phenomenon governing the energy transfer and transport processes that occur during a loss-of-coolant accident in the PWR system. Test 104 was conducted to obtain CHF in bundle 1 under blowdown conditions. The primary purpose of this report is to make the reduced instrument responses during test 104 available.
Date:
February 14, 1978
Creator:
Leon, D. M.; White, M. D.; Moore, P. A. & Hedrick, R. A.
Object Type:
Report
System:
The UNT Digital Library
Cell and stack design alternatives. Second quarterly report, November 1, 1978-January 31, 1979
Progress on a program to develop commercially viable phosphoric acid fuel cell driven on-site integration energy systems is presented. A mass and energy balance was completed for one operating point of a selected power generation sub-system with a power output of 119 kW. Potentially, 87% of the LHV of the input fuel is available as bus bar electricity or useful heat. A 2 kW stack of conventional design and a 0.5 kW DIGAS cooled stack have been constructed and are on test at ERC. Renovation of a space for the Westinghouse stack test facility is underway and procurement of equipment has been initiated. The coupled cell temperature - current density analysis has been modified to include the effects of turbulent coolant flow and extended to permit analysis of up to 10 process plates between cooling plates. The REFORM computer program was verified by comparison with data received from the government project manager. A method for predicting carbon deposition was developed and compared with data from the literature.
Date:
February 14, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Polyacetylene, (CH)/sub x/, as an emerging material for solar cell applications. Technical progress report, October, November, December 1979
Initial studies of p-n heterojunctions formed between undoped trans-(CH)/sub x/ and n-CdS are reported. The junctions were characterized by measurements of current vs voltage (I-V), capacitance vs voltage (C-V), and photovoltaic response spectra. The results are analyzed in terms of the standard heterojunction equations. It is concluded that undoped as-grown films of trans-(CH)/sub x/ are p-type with a residual acceptor concentration of 2 x 10/sup 18/ cm/sup -3/, and that in spite of the complex fibril morphology the semiconductor properties can be inferred by treating (CH)/sub x/ as an effective homogeneous medium. Detailed studies of the photovoltaic response at energies below the energy gap for (CH)/sub x/ imply the existence of a well-defined deep trapping state in polyacetylene with an energy near the center of the gap.
Date:
February 14, 1980
Creator:
Heeger, A.J. & MacDiarmid, A.G.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Bush - Tulips]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
February 14, 1995, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Pianist]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
February 14, 1994, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
LOFT blowdown loop piping thermal analysis Class I review
In accordance with ASME Code, Section III requirements, all analyses of Class I components must be independently reviewed. Since the LOFT blowdown loop piping up through the blowdown valve is a Class I piping system, the thermal analyses are reviewed. The Thermal Analysis Branch comments to this review are also included. It is the opinion of the Thermal Analysis Branch that these comments satisfy all of the reviewers questions and that the analyses should stand as is, without additional considerations in meeting the ASME Code requirements and ANC Specification 60139.
Date:
February 14, 1978
Creator:
Kinnaman, T.L.
Object Type:
Report
System:
The UNT Digital Library
Oklahoma State Register (Guthrie, Okla.), Vol. 27, No. 40, Ed. 1 Thursday, February 14, 1918
Weekly newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 14, 1918
Creator:
Golobie, John
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla. Terr.), Vol. 19, No. 33, Ed. 1 Thursday, February 14, 1907
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
February 14, 1907
Creator:
Echols, R. C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla.), Vol. 13, No. 32, Ed. 1 Thursday, February 14, 1901
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
February 14, 1901
Creator:
Townsend, G. B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla.), Vol. 12, No. 33, Ed. 1 Wednesday, February 14, 1900
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
February 14, 1900
Creator:
Scarborough, James
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The U.S.-Colombia Free Trade Agreement: Background and Issues
This report discusses the proposed U.S.-Colombia Free Trade Agreement (CFTA) signed November 22, 2006, which has not yet been approved by Congress. It includes an overview of the proposed CFTA and U.S.-Colombia trade, background on Colombia, issues for Congress to consider, Colombia's plan to improve labor rights, and the actions that Colombia has already taken to improve violence, labor, and human rights within the country.
Date:
February 14, 2014
Creator:
Villarreal, M. Angeles
Object Type:
Report
System:
The UNT Digital Library
Lebanon: Background and U.S. Policy
This report provides an overview of Lebanon and current issues of U.S. interest. It offers background information, analyzes recent developments and key legislative debates, and tracks legislation, U.S. assistance, and recent congressional action.
Date:
February 14, 2014
Creator:
Blanchard, Christopher M.
Object Type:
Report
System:
The UNT Digital Library
The Mangum Star (Mangum, Okla.), Vol. 30, No. 35, Ed. 1 Thursday, February 14, 1918
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 14, 1918
Creator:
Jessee, Elmer V.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Bahrain: Reform, Security, and U.S. Policy
This report discusses the current state of Bahrain, which has undergone substantial political reforms since the late 1990s, but which still suffers from tension between the Shiite majority and the Sunni-led government. It focuses particularly on Bahrain's relationship with Iran and with the United States.
Date:
February 14, 2014
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
The Education Sciences Reform Act
This report discusses the Education Sciences Reform Act (ESRA, Title I of P.L. 107-279) that established the Institute of Education Sciences (IES) as an independent research arm of the Department of Education (ED).
Date:
February 14, 2014
Creator:
Kuenzi, Jeffrey J. & Stoll, Adam
Object Type:
Report
System:
The UNT Digital Library
Changes in the Arctic: Background and Issues for Congress
This report provides an overview of Arctic-related issues for Congress and refers readers to more in-depth CRS reports on specific relevant topics.
Date:
February 14, 2014
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library