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462 Matching Results
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Progress in Lattice Qcd at Finite Temperature.
I review recent developments in lattice QCD at finite temperature, including the determination of the transition temperature T{sub c}, equation of state and different static screening lengths. The lattice data suggest that at temperatures above 1.5T{sub c} the quark gluon plasma can be considered as gas consisting of quarks and gluons.
Date:
February 11, 2007
Creator:
Petreczky, P.
Object Type:
Article
System:
The UNT Digital Library
RESULTS FROM PP AT 62.4 AND 200 GeV WITH THE BRAHMS EXPERIMENTATION.
Measurements of elementary pp collisions are essential for understanding heavy ion collisions. R.esu1ts for pp collisions at 200 and 62.4 GeV are presented. At both energies NLO pQCD describes pion production well. The measured pion transverse single spin asymmetries are very large at 62.4 GeV and are reasonably well described by models relying on pQCD at transverse momenta larger than 1 GeV/c.
Date:
February 11, 2007
Creator:
Videbaek, F. & EXPERIMENTATION), (BRAHMS
Object Type:
Article
System:
The UNT Digital Library
DATABASE AND ANALYTICAL TOOL DEVELOPMENT FOR THE MANAGEMENT OF DATA DERIVED FROM US DOE (NETL) FUNDED FINE PARTICULATE (PM 2.5) RESEARCH
Advanced Technology Systems, Inc. (ATS) was contracted by the U. S. Department of Energy's National Energy Technology Laboratory (DOE-NETL) to develop a state-of-the-art, scalable and robust web-accessible database application to manage the extensive data sets resulting from the DOE-NETL-sponsored ambient air monitoring programs in the upper Ohio River valley region. The data management system was designed to include a web-based user interface that will allow easy access to the data by the scientific community, policy- and decision-makers, and other interested stakeholders, while providing detailed information on sampling, analytical and quality control parameters. In addition, the system will provide graphical analytical tools for displaying, analyzing and interpreting the air quality data. The system will also provide multiple report generation capabilities and easy-to-understand visualization formats that can be utilized by the media and public outreach/educational institutions. The project is being conducted in two phases. Phase One includes the following tasks: (1) data inventory/benchmarking, including the establishment of an external stakeholder group; (2) development of a data management system; (3) population of the database; (4) development of a web-based data retrieval system, and (5) establishment of an internal quality assurance/quality control system on data management. Phase Two, which is currently underway, involves the …
Date:
February 11, 2006
Creator:
Khosah, Robinson P. & Crawford, Charles G.
Object Type:
Report
System:
The UNT Digital Library
Mitigation of CBRN Incidents for HVAC Systems in Federal Facilities
None
Date:
February 11, 2005
Creator:
MacDonald, JM
Object Type:
Report
System:
The UNT Digital Library
Linear-scaling evaluation of the local energy in quantum MonteCarlo
For atomic and molecular quantum Monte Carlo calculations, most of the computational effort is spent in the evaluation of the local energy. We describe a scheme for reducing the computational cost of the evaluation of the Slater determinants and correlation function for the correlated molecular orbital (CMO) ansatz. A sparse representation of the Slater determinants makes possible efficient evaluation of molecular orbitals. A modification to the scaled distance function facilitates a linear scaling implementation of the Schmidt-Moskowitz-Boys-Handy (SMBH) correlation function that preserves the efficient matrix multiplication structure of the SMBH function. For the evaluation of the local energy, these two methods lead to asymptotic linear scaling with respect to the molecule size.
Date:
February 11, 2006
Creator:
Austin, Brian; Aspuru-Guzik, Alan; Salomon-Ferrer, Romelia & Lester Jr., William A.
Object Type:
Article
System:
The UNT Digital Library
Variational Symplectic Integrator for Long-Time Simulations of the Guiding-Center Motion of Charged Particles in General Magnetic Fields
A variational symplectic integrator for the guiding-center motion of charged particles in general magnetic fields is developed for long-time simulation studies of magnetized plasmas. Instead of discretizing the differential equations of the guiding-center motion, the action of the guiding-center motion is discretized and minimized to obtain the iteration rules for advancing the dynamics. The variational symplectic integrator conserves exactly a discrete Lagrangian symplectic structure, and has better numerical properties over long integration time, compared with standard integrators, such as the standard and variable time-step fourth order Runge-Kutta methods.
Date:
February 11, 2008
Creator:
Qin, H. & Guan, X.
Object Type:
Report
System:
The UNT Digital Library
The Ranger (San Antonio, Tex.), Vol. 75, No. 14, Ed. 1 Friday, February 11, 2000
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
February 11, 2000
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
The Longhorn Express (Harper, Tex.), Vol. 11, No. 3, Ed. 1 Wednesday, February 11, 2009
Student newspaper of Harper Independent School District in Harper, Texas that includes school news and information along with advertising.
Date:
February 11, 2009
Creator:
Harper Independent School District Journalism Class
Object Type:
Newspaper
System:
The Portal to Texas History
The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 205, No. 5, Ed. 1 Friday, February 11, 2000
Weekly newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date:
February 11, 2000
Creator:
Keys, Scott & Lamb, Bill
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 114, No. 6, Ed. 1 Wednesday, February 11, 2009
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 11, 2009
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 109, No. 12, Ed. 1 Wednesday, February 11, 2004
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 11, 2004
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 125, No. 12, Ed. 1 Sunday, February 11, 2007
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
February 11, 2007
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
[Man playing a bass]
Photograph of a man playing a bass.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a saxophone for audience members]
Photograph of a man playing a saxophone for audience members.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a bass]
Photograph of a man playing a bass.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a saxophone]
Photograph of a man playing a saxophone.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Musicians playing on stage]
Photograph of musicians playing on stage.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a soprano saxophone]
Photograph of a man playing a soprano saxophone.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a saxophone]
Photograph of a man playing a saxophone.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a soprano saxophone]
Photograph of a man playing a soprano saxophone.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a keyboard]
Photograph of a man playing a keyboard.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a saxophone]
Photograph of a man playing a saxophone.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing drums]
Photograph of a man playing drums.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Man playing a saxophone for audience members]
Photograph of a man playing a saxophone for audience members.
Date:
February 11, 2006
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library