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Results:
433 - 449 of
449
University Press (Beaumont, Tex.), Vol. 75, No. 42, Ed. 1 Friday, April 16, 1999
Semiweekly newspaper from Lamar University in Beaumont, Texas that includes local, national, and campus news along with advertising.
Date:
April 16, 1999
Creator:
Dorman, Billie
Object Type:
Newspaper
System:
The Portal to Texas History
The Very Large Hadron Collider
I present some of the current ideas about a Very Large Hadron Collider [1] which could eventually extend the high energy frontier beyond that of the Large Hadron Collider (LHC) or any other machine seriously conceived at this time.
Date:
February 16, 1999
Creator:
Albrow, Michael G.
Object Type:
Article
System:
The UNT Digital Library
Věstník (Temple, Tex.), Vol. 87, No. 24, Ed. 1 Wednesday, June 16, 1999
Weekly Czech and English language newspaper from Temple, Texas published as the official organ of the Slavonic Benevolent Order of the State of Texas that includes news of interest to members along with advertising.
Date:
June 16, 1999
Creator:
Vanicek, Brian
Object Type:
Newspaper
System:
The Portal to Texas History
The Virtual Manual: Moving from Paper- to Web-Based Documentation
Lawrence Livermore National Laboratory is implementing an Integrated Safety Management System (ISMS) to assure that all environment, safety, and health (ES&H) requirements and practices are integrated into work planning, execution, and feedback. A major component to ISMS is the rewriting of the Laboratory's ES&H documentation to meet federal, state, and local requirements and standards. Previously, the Laboratory's operations documentation was paper-based and decentralized; updates were time-consuming and expensive to produce and distribute. The immediate goal for the ISMS project team was the development of a virtual, Web-based manual that provides current, consistent information easily accessible to users. Future updates to this virtual manual will be faster, less expensive, and immediately available.
Date:
August 16, 1999
Creator:
Cannon, Gloria; Butler, Janice; Corey, Cara Wilson & Hedman, Irene
Object Type:
Article
System:
The UNT Digital Library
Waste Retrieval Sluicing System Campaign Number 3 Solids Volume Transferred Calculation
Waste Retrieval Sluicing System (WRSS) operations at tank 241-C-106 began on Wednesday, November 18,1998. The purpose of this system is to retrieve and transfer the high-heat sludge from the tank for storage in double-shell tank 241-AY-102, thereby resolving the high-heat safety issue for the tank, and to demonstrate modernized past-practice retrieval technology for single-shell tank waste. Performance Agreement (PA) TWR 1.2.2, C-106 Sluicing, was established by the Department of Energy, Office of River Protection (ORP) for achieving completion of sluicing retrieval of waste from tank 241-C-106 by September 30,1999. This level of sludge removal is defined in the PA as either removal of approximately 72 inches of sludge or removal of 172,000 gallons of sludge (approximately 62 inches) and less than 6,000 gallons (approximately 2 inches) of sludge removal per 12 hour sluice batch for three consecutive batches. Preliminary calculations of the volume of tank 241-C-106 sludge removed as of September 29, 1999 were provided to ORP documenting completion of PA TWR 1.2.2 (Allen 1999a). The purpose of this calculation is to document the final sludge volume removed from tank 241-C-106 up through September 30, 1999. Additionally, the results of an extra batch completed October 6, 1999 is included to …
Date:
November 16, 1999
Creator:
CAROTHERS, K.G.
Object Type:
Report
System:
The UNT Digital Library
Weak Interaction Measurements with Optically Trapped Radioactive Atoms
This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The goal of this project is to apply the latest in magneto-optical and pure magnetic trapping technology to concentrate, cool, confine, and polarize radioactive atoms for precise electroweak interaction measurements. In particular, the authors have concentrated their efforts on the trapping of {sup 82}Rb for a parity-violating, beta-asymmetry measurement. Progress has been made in successfully trapping of up to 6 million {sup 82}Rb(t{sub 1/2}=75s) atoms in a magneto-optical trap coupled to a mass separator. This represents a two order of magnitude improvement in the number trapped radioactive atoms over all previous work. They have also measured the atomic hyperfine structure of {sup 82}Rb and demonstrated the MOT-to-MOT transfer and accumulation of atoms in a second trap. Finally, they have constructed and tested a time-orbiting-potential magnetic trap that will serve as a rotating beacon of spin-polarized nuclei and a beta-telescope detection system. Prototype experiments are now underway with the initial goal of making a 1% measurements of the beta-asymmetry parameter A which would match the world's best measurements.
Date:
July 16, 1999
Creator:
Vieira, D. J.; Crane, S. G.; Guckert, R.; Zhao, X.; Brice, S. J.; Goldschmidt, A. et al.
Object Type:
Report
System:
The UNT Digital Library
The West News (West, Tex.), Vol. 109, No. 37, Ed. 1 Thursday, September 16, 1999
Weekly newspaper from West, Texas that includes local, state, and national news along with advertising.
Date:
September 16, 1999
Creator:
Knapek, Larry
Object Type:
Newspaper
System:
The Portal to Texas History
The West News (West, Tex.), Vol. 109, No. 50, Ed. 1 Thursday, December 16, 1999
Weekly newspaper from West, Texas that includes local, state, and national news along with advertising.
Date:
December 16, 1999
Creator:
Knapek, Larry
Object Type:
Newspaper
System:
The Portal to Texas History
[Wheeler Avenue Baptist Church Bulletin: May 16, 1999]
Church bulletin listing the order of worship for the 7:30 and 11:00 Sunday morning services at the Wheeler Avenue Baptist Church, as well as various notes about upcoming events, congregational news, and other information of relevance to church members.
Date:
May 16, 1999
Creator:
Wheeler Avenue Baptist Church (Houston, Tex.)
Object Type:
Pamphlet
System:
The Portal to Texas History
Work-Op IV summary: lessons from iron opacities
The fourth international LTE opacity workshop and code comparison study, WorkOp-IV, was held in Madrid in 1997. Results of this workshop are summarized with a focus on iron opacities. In particular, the astrophysically important photon absorption region between 50 and 80 eV is emphasized for a sequence of iron plasmas at densities and temperatures that produce nearly the same average ionization stage (Z* {approximately} 8.6). Experimental data that addressed this spectral region is also reviewed.
Date:
April 16, 1999
Creator:
Davidson, S J; Iglesias, C A; Minguez, E & Serduke, F J D
Object Type:
Article
System:
The UNT Digital Library
The Wylie News (Wylie, Tex.), Vol. 53, No. 3, Ed. 1 Wednesday, June 16, 1999
Weekly newspaper from Wylie, Texas that includes local, state and national news along with advertising.
Date:
June 16, 1999
Creator:
Engbrock, Chad B.
Object Type:
Newspaper
System:
The Portal to Texas History
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 97, No. 24, Ed. 1 Thursday, September 16, 1999
Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 16, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 97, No. 37, Ed. 1 Thursday, December 16, 1999
Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 16, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
X-ray absorption spectroscopy on the calcium cofactor to the manganese cluster in photosynthetic oxygen evolution
Along with Mn, calcium and chloride ions are necessary cofactors for oxygen evolution in Photosystem II (PS II). To further test and verify whether Ca is close to the Mn cluster, the authors substituted strontium for Ca and probed from the Sr point of view for any nearby Mn. The extended X-ray absorption fine structure (EXAFS) of Sr-reactivated PS II indicates major differences between the intact and NH{sub 2}OH-treated samples. In intact samples, the Fourier transform of the Sr EXAFS shows a Fourier peak that is missing in inactive samples. This peak II is best simulated by two Mn neighbors at a distance of 3.5 Angstrom, confirming the proximity of Ca (Sr) cofactor to the Mn cluster. In addition, polarized Sr EXAFS on oriented Sr-reactivated samples shows this peak II is dichroic: large magnitude at 10 degrees (angle between the PS II membrane normal and the x-ray electric field vector) and small at 80 degrees. Analysis of the dichroism yields the relative angle between the Sr-Mn vector and membrane normal (23 degrees {+-} 4 degrees), and the isotropic coordination number for these layered samples. X-ray absorption spectroscopy has also been employed to assess the degree of similarity between the manganese …
Date:
December 16, 1999
Creator:
Cinco, Roehl M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Year 2000 Computing Challenge: Readiness of FBI's National Instant Criminal Background Check System Can Be Improved
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Federal Bureau of Investigation's (FBI) efforts to ensure that its National Instant Criminal Background Check System (NICS) is year 2000 compliant."
Date:
December 16, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
The Yellow Jacket (Brownwood, Tex.), Vol. 90, No. 3, Ed. 1, Thursday, September 16, 1999
Weekly student newspaper from Howard Payne University in Brownwood, Texas that includes local, state and campus news along with advertising.
Date:
September 16, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Z-Pinch Generated X-Rays Demonstrate Indirect-Drive ICF Potential
Hohlraums (measuring 6-mm in diameter by 7-mm in height) have been heated by x-rays from a z-pinch. Over measured x-ray input powers P of 0.7 to 13 TW, the hohlraum radiation temperature T increases from {approximately}55 to {approximately}130 eV, and is in agreement with the Planckian relation P-T{sup 4}. The results suggest that indirect-drive ICF studies involving NIF relevant pulse shapes and <2-mm diameter capsules can he studied using this arrangement.
Date:
June 16, 1999
Creator:
Bowers, R. L.; Chandler, G. A.; Derzon, M. S.; Hebron, D. E.; Leeper, R. J.; Matzen, M. K. et al.
Object Type:
Article
System:
The UNT Digital Library