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IN-PILE GAS-COOLED FUEL ELEMENT TEST FACILITY
Paper presented at American Nuclear Society Meeting, June I8-21, 1962, Boston, Mass. Design and operating problems of unclad and ceramic gas-cooled reactor fuels in high temperature circulating gas systems will be studied using a test facility now nearing completion at the Oak Ridge Research Reactor. A shielded air-tight cell houses a closed circuit gas system equipped for dealing with fission products circulating in the gas. Experiments can be conducted on fuel element performance and stability, fission product deposition, gas clean up, activity levels, component and system performance and shielding, and decontamination and maintenance of system hardware. (auth)
Date:
July 10, 1962
Creator:
Zasler, J.; Huntley, W. R.; Gnadt, P. A. & Kress, T. S.
Object Type:
Report
System:
The UNT Digital Library
Thermal Control System and Method for a Passive Solar Storage Wall
A system and method are provided for controlling the storing and release of thermal energy from a thermal storage wall wherein said wall is capable of storing thermal energy from insolation. The system and method includes a device such as a plurality of louvers spaced a predetermined distance from the thermal wall for regulating the release of thermal energy from the thermal wall. This regulating device is made from a material which is substantially transparent to the incoming solar radiation so that when it is in any operative position, the thermal storage wall substantially receives all of the impacting solar radiation. The material in the regulating device is further capable of being substantially opaque to thermal energy so that when the device is substantially closed, thermal release of energy from the storage wall is substantially minimized. An adjustment device is interconnected with the regulating mechanism for selectively opening and closing it in order to regulate the release of thermal energy from the wall.
Date:
July 10, 1981
Creator:
Ortega, Joseph Kenneth Earl
Object Type:
Patent
System:
The UNT Digital Library
Electron energies in metals
The modern era of electron-electron interactions began a decade ago. Plummer's group initiated a program of using angular resolved photoemission to examine the band structure of the simple metals. Beginning with aluminum, and carrying on to sodium and potassium, they always found that the occupied energy bands were much narrower than expected. For example, the compressed energy bands for metallic potassium suggest a band effective mass of m* = 1.33m{sub e}. This should be compared to the band mass found from optical conductivity m*/m{sub e} = 1.01 {plus minus} 0.01. The discrepancy between these results is startling. It was this great difference which started my group doing calculations. Our program was two-fold. On one hand, we reanalyzed the experimental data, in order to see if Plummer's result was an experimental artifact. On the other hand, we completely redid the electron-electron self-energy calculations for simple metals, using the most modern choices of local-field corrections and vertex corrections. Our results will be reported in these lectures. They can be summarized as following: Our calculations give the same effective masses as the older calculations, so the theory is relatively unchanged; Our analysis of the experiments suggests that the recent measurements of band narrowing …
Date:
July 10, 1991
Creator:
Mahan, G.D. (Oak Ridge National Lab., TN (United States) Tennessee Univ., Knoxville, TN (United States). Dept. of Physics and Astronomy)
Object Type:
Article
System:
The UNT Digital Library
Scaling of current density, total current, emittance, and brightness for hydrogen negative ion sources
The atomic and molecular processes that play a principal role in negative ion formation in a hydrogen negative ion discharge are discussed. The collisions of energetic electrons with gas molecules within the discharge lead to vibrationally excited molecules. Thermal electrons in turn attach to these excited molecules and generate negative ions via the dissociative attachment process. A system geometry chosen to optimize these collision processes is discussed that consists of a high-power discharge in tandem with a low electron temperature bath, the two regions separated by a magnetic filter. The current density extracted from such a system is found to scale inversely with the system scale length provided the gas density and electron density are also increased inversely with scale length. If a system is scaled downward in size to provide a new beamlet but one with increased current density, and these beamlets are packed to fill the original dimension, the new total extracted current will exceed the original total current by the scale factor. The emittance, epsilon, of the new system remains unchanged. The brightness, J/epsilon/sup 2/, of the new system will also be increased in proportion to the scale factor. 4 refs., 2 figs.
Date:
July 10, 1986
Creator:
Hiskes, J.R.
Object Type:
Article
System:
The UNT Digital Library
Klamath County YMCA geothermal heating project environmental assessment
The YMCA Geothermal Heating project proposes to obtain approximately 57% of the total facility energy usage through direct application of the Klamath Falls KGRA. This will be accomplished through the design and construction of a retrofit and injection system for the utilization of an existing 110/sup 0/F geothermal energy source at the project site. The existing 2016 foot well will be outfitted with a turbine pump with variable speed drive. The well head will be enclosed by a 10' x 10' building. The geothermal fluid, pumped at a peak rate of 350 gpm will be transported to the YMCA Facility through 5'' diameter schedule 40 black iron pipe fitted with victaulic couplings for expansion. All underground supply pipes will be equipped with magnesium anodes for galvaic protection and will be insulted with 1'' thick calcium silicate insulation, with two layers of 45 number roofing felt applied with asphaltic compound. All supply lines within the building will be insulated with 1'' fiberglass insulation material with a cloth jacket. The fluids will pass through a heating coil and heat exchanger system to provide heat for the 30,000 square foot YMCA facility as well as for the 90,000 gallon swimming pool. The spent …
Date:
July 10, 1979
Creator:
Shreve, J.H. (ed.)
Object Type:
Report
System:
The UNT Digital Library
SLAC Divertor Channel Entrance Thermal Stress Analysis
X-ray beams emerging from the new SLAC electron-positron storage ring (PEP) impinge on the entrance to tangential divertor channels causing highly localized heating in the channel structure. Analyses were completed to determine the temperatures and thermally-induced stresses due to this heating. These parts are cooled with water flowing axially over them at 30/sup 0/C. The current design and operating conditions should result in the entrance to the new divertor channel operating at a peak temperature of 123/sup 0/C with a peak thermal stress at 91% of yield. Any micro-cracks that form due to thermally-induced stresses should not propagate to the coolant wall nor form a path for the coolant to leak into the storage ring vacuum. 34 figs., 4 tabs.
Date:
July 10, 1985
Creator:
Johnson, Gary L.; Stein, Werner; Lu, Stephen C. & Riddle, Robert A.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Houston murders]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 10, 1994, 5:30 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Importance of high order momentum terms in SLC optics
The evaluation of background levels at the SLC relies, in several cases, on the proper representation of how low momentum electrons propagate through the Arcs and the Final Focus System (FFS). For example, beam - gas bremsstrahlung in the arcs causes electrons of up to 6% energy loss to be transported through to the IP; secondary showers on edges of masks and collimators yield debris with a very wide momentum spectrum. This note is a naive attempt at checking the validity of TRANSPORT and TURTLE calculations, by evaluating the contributions of the momentum terms to increasingly higher order, and checking the mutual consistency of the results produced by the two methods on a beam of wide momentum spread. 8 refs., 4 figs., 1 tab.
Date:
July 10, 1985
Creator:
Kozanecki, W.
Object Type:
Report
System:
The UNT Digital Library
The Mangum Star. (Mangum, Okla. Terr.), Vol. 15, No. 1, Ed. 1 Thursday, July 10, 1902
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
July 10, 1902
Creator:
Echols, R. C. & Townsend, G. B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat (Altus, Okla.), Vol. 6, No. 18, Ed. 1 Thursday, July 10, 1913
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1913
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Mirror (Mangum, Okla.), Vol. 1, No. 33, Ed. 1 Tuesday, July 10, 1917
Semi-weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1917
Creator:
Ryder, J. W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Guthrie Daily News. (Guthrie, Okla. Terr.), Vol. 5, No. 1531, Ed. 1 Tuesday, July 10, 1894
Daily newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
July 10, 1894
Creator:
Smith, W. Heath
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Wind-Tunnel Investigation to Determine the Horizontal- and Vertical-Tail Contributions to the Static Lateral Stability Characteristics of a Complete-Model Swept-Wing Configuration at High Subsonic Speeds
Results regarding an investigation to determine the horizontal- and vertical-tail contributions to the static lateral stability of a complete-model swept-wing configuration at high subsonic speeds. Generally, Mach number effects within the range studied and wing effects on the tail contribution were small and the overall trends of the data of the present investigation agreed with those which have been established at low speeds.
Date:
July 10, 1953
Creator:
Wiggins, James W.; Kuhn, Richard E. & Fournier, Paul G.
Object Type:
Report
System:
The UNT Digital Library
Weekly Oklahoma State Capital. (Guthrie, Okla.), Vol. 9, No. 15, Ed. 2 Saturday, July 10, 1897
Weekly newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
July 10, 1897
Creator:
Greer, Frank H.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star And Southwest Eagle (Mangum, Okla.), Vol. 32, No. 4, Ed. 1 Thursday, July 10, 1919
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1919
Creator:
Jessee, Elmer V.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Weekly News. (Altus, Okla.), Vol. 20, No. 20, Ed. 1 Thursday, July 10, 1919
Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date:
July 10, 1919
Creator:
Orr, J. P.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Weekly Oklahoma State Capital. (Guthrie, Okla.), Vol. 9, No. 15, Ed. 1 Saturday, July 10, 1897
Weekly newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
July 10, 1897
Creator:
Greer, Frank H.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guthrie Daily Star (Guthrie, Okla.), Vol. 9, No. 104, Ed. 1 Wednesday, July 10, 1912
Daily newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1912
Creator:
Hornaday, W. H.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 23, No. 18, Ed. 1 Thursday, July 10, 1913
Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1913
Creator:
Zimmerman, Warren
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 29, No. 19, Ed. 1 Thursday, July 10, 1919
Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1919
Creator:
Denny, J. Q.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Crowder City Guardian (Crowder, Oklahoma), Vol. 3, No. 31, Ed. 1 Friday, July 10, 1908
Weekly newspaper from Crowder, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1908
Creator:
Barrow, A. E.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Crowder City Guardian (Crowder, Oklahoma), Vol. 9, No. 42, Ed. 1 Friday, July 10, 1914
Weekly newspaper from Crowder, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1914
Creator:
Yeary, Syd L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Hooker Advance (Hooker, Okla.), Vol. 5, No. 22, Ed. 1 Friday, July 10, 1908
Weekly newspaper from Hooker, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1908
Creator:
Moffitt, Jesse S.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Democrat (Beaver, Okla.), Vol. 10, No. 6, Ed. 1 Thursday, July 10, 1919
Weekly newspaper from Beaver, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 10, 1919
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History