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New Pellet Injection Schemes on DIII-D
The pellet fueling system on DIII-D has been modified for injection of deuterium pellets from two vertical ports and two inner wall locations on the magnetic high-field side (HFS) of the tokamak. The HFS pellet injection technique was first employed on ASDEX-Upgrade with significant improvements reported in both pellet penetration and fueling efficiency. The new pellet injection schemes on DIII-D required the installation of new guide tubes. These lines are {approx_equal}12.5 m in total length and are made up of complex bends and turns (''roller coaster'' like) to route pellets from the injector to the plasma, including sections inside the torus. The pellet speed at which intact pellets can survive through the curved guide tubes is limited ({approx_equal}200-300 m/s for HFS injection schemes). Thus, one of the three gas guns on the injector was modified to provide pellets in a lower speed regime than the original guns (normal speed range {approx_equal}500 to 1000 m/s). The guide tube installations and gun modifications are described along with the injector operating parameters, and the latest test results are highlighted.
Date:
November 13, 1999
Creator:
Anderson, P. M.; Baylor, L. R.; Combs, S. K.; Foust, C. R.; Jernigan, T. C. & Robinson, J. I.
Object Type:
Article
System:
The UNT Digital Library
Sensitivity of numerical dispersion modeling to explosive source parameters
The calculation of downwind concentrations from non-traditional sources, such as explosions, provides unique challenges to dispersion models. The US Department of Energy has assigned the Atmospheric Release Advisory Capability (ARAC) at the Lawrence Livermore National Laboratory (LLNL) the task of estimating the impact of accidental radiological releases to the atmosphere anywhere in the world. Our experience includes responses to over 25 incidents in the past 16 years, and about 150 exercises a year. Examples of responses to explosive accidents include the 1980 Titan 2 missile fuel explosion near Damascus, Arkansas and the hydrogen gas explosion in the 1986 Chernobyl nuclear power plant accident. Based on judgment and experience, we frequently estimate the source geometry and the amount of toxic material aerosolized as well as its particle size distribution. To expedite our real-time response, we developed some automated algorithms and default assumptions about several potential sources. It is useful to know how well these algorithms perform against real-world measurements and how sensitive our dispersion model is to the potential range of input values. In this paper we present the algorithms we use to simulate explosive events, compare these methods with limited field data measurements, and analyze their sensitivity to input parameters. …
Date:
February 13, 1991
Creator:
Baskett, R.L. (EG and G Energy Measurements, Inc., Pleasanton, CA (USA)) & Cederwall, R.T. (Lawrence Livermore National Lab., CA (USA))
Object Type:
Article
System:
The UNT Digital Library
The Sticker (Schulenburg, Tex.), Vol. 5, No. 37, Ed. 1 Thursday, April 13, 1899
Weekly newspaper from Schulenburg, Texas that includes local, state and national news along with advertising.
Date:
April 13, 1899
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Grandview Tribune (Grandview, Tex.), Vol. 93, No. 23, Ed. 1 Friday, January 13, 1989
Weekly newspaper from Grandview, Texas that includes local, state, and national news along with advertising.
Date:
January 13, 1989
Creator:
Magness, Jack, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
Shock Absorber for Bicycles and Motor Cycles.
Patent for "invention...to provide a simple, practical and inexpensive device adapted to be readily applied to motorcycles and bicycles and capable of absorbing the shocks and jars and increasing the life of a bicycle or motorcycle and of enabling the engine of the latter to run smoother and at the expenditure of less power" (lines 15-23) including illustrations and instructions.
Date:
August 13, 1918
Creator:
Newberry, Roy D.
Object Type:
Patent
System:
The Portal to Texas History
The Brady Standard (Brady, Tex.), Vol. 21, No. 77, Ed. 1 Friday, December 13, 1929
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
December 13, 1929
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Muskogee/Okmulgee Oklahoma Eagle (Muskogee and Okmulgee, Okla.), Vol. 5, No. 43, Ed. 1 Thursday, December 13, 1979
Weekly newspaper from Muskogee and Okmulgee, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 13, 1979
Creator:
Robinson, Earl
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Weekly Visitor. (Bay City, Tex.), Vol. 1, No. 19, Ed. 1 Friday, October 13, 1899
Weekly newspaper from Bay City, Texas that includes local, state, and national news along with advertising.
Date:
October 13, 1899
Creator:
Gartrell, L. J.
Object Type:
Newspaper
System:
The Portal to Texas History
Lehigh Leader. (Lehigh, Okla.), Vol. 17, No. 39, Ed. 1 Thursday, August 13, 1908
Weekly newspaper from Lehigh, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 13, 1908
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Coalgate Courier. (Coalgate, Okla.), Vol. 10, No. 9, Ed. 1 Thursday, August 13, 1908
Weekly newspaper from Coalgate, Coal County, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 13, 1908
Creator:
White, R. A.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Post-Signal (Pilot Point, Tex.), Vol. 34, No. 7, Ed. 1 Friday, October 13, 1911
Weekly newspaper from Pilot Point, Texas that includes local, state and national news along with advertising.
Date:
October 13, 1911
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Granite Enterprise. (Granite, Okla.), Vol. 9, No. 13, Ed. 1 Thursday, August 13, 1908
Weekly newspaper from Granite, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 13, 1908
Creator:
Ryder, J. W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mexia Weekly Herald (Mexia, Tex.), Vol. 9, No. 33, Ed. 1 Thursday, August 13, 1908
Weekly newspaper from Mexia, Texas that includes local, state and national news along with extensive advertising.
Date:
August 13, 1908
Creator:
Houx, N. P.
Object Type:
Newspaper
System:
The Portal to Texas History
The Hominy Journal (Hominy, Okla.), Vol. 14, No. 4, Ed. 1 Thursday, December 13, 1934
Weekly newspaper from Hominy, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 13, 1934
Creator:
Blackford, F. H.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Schulenburg Sticker (Schulenburg, Tex.), Vol. 11, No. 49, Ed. 1 Thursday, July 13, 1905
Weekly newspaper from Schulenburg, Texas that includes local, state and national news along with advertising.
Date:
July 13, 1905
Creator:
Winfree, Raymond
Object Type:
Newspaper
System:
The Portal to Texas History
Coweta Times. (Coweta, Okla.), Vol. 4, No. 5, Ed. 1 Thursday, August 13, 1908
Weekly newspaper from Coweta, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 13, 1908
Creator:
Leftwich, Mark A.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Shamrock Texan (Shamrock, Tex.), Vol. 31, No. 191, Ed. 1 Thursday, December 13, 1934
Daily newspaper from Shamrock, Texas that includes local, state, and national news along with advertising.
Date:
December 13, 1934
Creator:
Cooper, Albert
Object Type:
Newspaper
System:
The Portal to Texas History
The Winkler County News (Kermit, Tex.), Vol. 78, No. 23, Ed. 1 Thursday, June 13, 2013
Weekly newspaper from Kermit, Texas that includes local, state and national news along with advertising.
Date:
June 13, 2013
Creator:
Parks, Phil
Object Type:
Newspaper
System:
The Portal to Texas History
Gainesville Daily Register (Gainesville, Tex.), Vol. 130, No. 117, Ed. 1 Thursday, February 13, 2020
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
February 13, 2020
Creator:
Einselen, Sarah
Object Type:
Newspaper
System:
The Portal to Texas History
The Deport Times (Deport, Tex.), Vol. 21, No. 45, Ed. 1 Friday, December 13, 1929
Weekly newspaper from Deport, Texas that includes local, state, and national news along with advertising.
Date:
December 13, 1929
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times-Democrat (Altus, Okla.), Vol. 44, No. 189, Ed. 1 Thursday, August 13, 1970
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 13, 1970
Creator:
Gilmore, Robert K. & Goforth, Don
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Cushing Daily Citizen (Cushing, Okla.), Vol. 12, No. 130, Ed. 1 Thursday, December 13, 1934
Daily newspaper from Cushing, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 13, 1934
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Chickasha Daily Express (Chickasha, Okla.), Vol. 99, No. 147, Ed. 1 Sunday, September 13, 1981
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 13, 1981
Creator:
Drew, Charles C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Sentinel Leader. (Sentinel, Okla.), Vol. 9, No. 46, Ed. 1 Friday, June 13, 1913
Weekly newspaper from Sentinel, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 13, 1913
Creator:
Inglish, G. L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History