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385 Matching Results
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Event-by-event hexb pt hexb fluctuations in Au-Au collisions atsqrt(sNN) = 130 GeV
We present the first large-acceptance measurement of event-wise <p{sub t}> fluctuations in Au-Au collisions at {radical}s{sub NN} = 130 GeV. Significant nonstatistical fluctuations are observed. The measured fractional r.m.s. width excess of the event-wise <p{sub t}> distribution for the 15% most-central events for charged hadrons within |{eta}| < 1 and 0.15 {le} p{sub t} {le} 2 GeV/c is 13.7 {+-} 0.1(stat) {+-}1.3(syst)% relative to a statistical reference. The variation of charge-independent fluctuation excess with centrality is non-monotonic but smooth. Charge-dependent nonstatistical fluctuations are also observed.
Date:
September 2, 2003
Creator:
Adams, J.; Adler, C.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Object Type:
Article
System:
The UNT Digital Library
Transverse-Momentum and Collision Energy Dependence of High p{sub T} Hadron Suppression in Au+Au Collisions at Ultrarelativistic Energies
No abstract prepared.
Date:
September 2, 2003
Creator:
Adams, J.; Adler, C.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Object Type:
Article
System:
The UNT Digital Library
Does the Endangered Species Act (ESA) Listing Provide More Protection of the Polar Bear?
This report discusses the polar bear that has been protected under the Marine Mammal Protection Act (MMPA) since 1972. The polar bear was listed because the bear's primary habitat of sea ice was threatened with destruction due to global climate change.
Date:
September 2, 2008
Creator:
Alexander, Kristina
Object Type:
Report
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 19, No. 35, Ed. 1 Thursday, September 2, 2004
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
September 2, 2004
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Supercritical Water Nuclear Steam Supply System: Innovations In Materials, Neutronics & Thermal-Hydraulics
In the 1990's supercritical light-water reactors were considered in conceptual designs. A nuclear reactor cooled by supercritical waster would have a much higher thermal efficiency with a once-through direct power cycle, and could be based on standardized water reactor components (light water or heavy water). The theoretical efficiency could be improved by more than 33% over that of other water reactors and could be simplified with higher reliability; e.g., a boiling water reactor without steam separators or dryers.
Date:
September 2, 2004
Creator:
Anderson, Mark; Corradini, M.L.; Sridharan, K.; WIlson, P.; Cho, D.; Kim, T.K. et al.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 144, Ed. 1 Tuesday, September 2, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 2, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 132, Ed. 1 Thursday, September 2, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 2, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 131, Ed. 1 Friday, September 2, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 2, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oral History Interview with Tim Ashcraft, September 2, 2008
The National Museum of the Pacific War presents an interview with Tim Ashcraft. Ashcraft joined the Army in October of 1943. He was assigned to the Medical Department. He worked at Ashford General Hospital in West Virginia. He traveled to Europe in 1944, including Germany and France. He was discharged in 1945.
Date:
September 2, 2008
Creator:
Ashcraft, Tim
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Tim Ashcraft, September 2, 2008
The National Museum of the Pacific War presents an interview with Tim Ashcraft. Ashcraft joined the Army in October of 1943. He was assigned to the Medical Department. He worked at Ashford General Hospital in West Virginia. He traveled to Europe in 1944, including Germany and France. He was discharged in 1945.
Date:
September 2, 2008
Creator:
Ashcraft, Tim
Object Type:
Text
System:
The Portal to Texas History
Atmospheric Radiation Measurement Program Facilities Newsletter, August 2003.
Monthly newsletter discussing news and activities related to the Atmospheric Radiation Measurement Program, articles about weather and atmospheric phenomena, and other related topics.
Date:
September 2, 2003
Creator:
Atmospheric Radiation Measurement Program (U.S.)
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Strategic Petroleum Reserve
This report includes information regarding strategic petroleum reserve. Background and analysis, purchases of crude oil, and drawdown of the reserve are among topics discussed in this report.
Date:
September 2, 2005
Creator:
Bamberger, Robert
Object Type:
Report
System:
The UNT Digital Library
Estimates of energy fluence at the focal plane in beams undergoing neutralized drift compression
The authors estimate the energy fluence (energy per unit area) at the focal plane of a beam undergoing neutralized drift compression and neutralized solenoidal final focus, as is being carried out in the Neutralized Drift Compression Experiment (NDCX) at LBNL. In these experiments, in order to reach high beam intensity, the beam is compressed longitudinally by ramping the beam velocity (i.e. introducing a velocity tilt) over the course of the pulse, and the beam is transversely focused in a high field solenoid just before the target. To remove the effects of space charge, the beam drifts in a plasma. The tilt introduces chromatic aberrations, with different slices of the original beam having different radii at the focal plane. The fluence can be calculated by summing the contribution from the various slices. They develop analytic formulae for the energy fluence for beams that have current profiles that are initially constant in time. They compare with envelope and particle-in-cell calculations. The expressions derived are useful for predicting how the fluence scales with accelerator and beam parameters.
Date:
September 2, 2008
Creator:
Barnard, J. J.; Seidl, P. A.; Coleman, J. E.; Ogata, D. & Welch, D. R.
Object Type:
Article
System:
The UNT Digital Library
Disaster Evacuation and Displacement Policy: Issues for Congress
The devastation caused by Hurricane Katrina reaches beyond the borders of the states directly affected by the wind, rain, and floods. Before the storm reached the coast, thousands of residents of Louisiana and Mississippi evacuated to other states, including Texas and Oklahoma. Many people, for a variety of reasons, chose to disregard the mandatory evacuation orders issued by state and local officials. In general, evacuation policy is set and enforced by state and local officials. Federal policy provides for various aspects of civilian evacuation. As Members of Congress explore the challenges and losses in the states affected directly or indirectly by Hurricane Katrina, they may be called upon to consider federal policy options to more fully integrate federal and state authorities.
Date:
September 2, 2005
Creator:
Bea, Keith
Object Type:
Report
System:
The UNT Digital Library
Alabama Emergency Management and Homeland Security Statutory Authorities Summarized
This report is one of a series that profiles the emergency management and homeland security statutory authorities of the 50 states, the District of Columbia, the Commonwealth of the Northern Mariana Islands, the Commonwealth of Puerto Rico, and three territories (American Samoa, Guam, and the U.S. Virgin Islands). Each profile identifies the more significant elements of state statutes, generally as codified. This report focuses on the state of Alabama.
Date:
September 2, 2005
Creator:
Bea, Keith; Runyon, L. Cheryl & Warnock, Kae
Object Type:
Report
System:
The UNT Digital Library
The Grandview Tribune (Grandview, Tex.), Vol. 110, No. 51, Ed. 1 Friday, September 2, 2005
Weekly newspaper from Grandview, Texas that includes local, state, and national news along with advertising.
Date:
September 2, 2005
Creator:
Beck-Adams, Candie
Object Type:
Newspaper
System:
The Portal to Texas History
Animal Identification and Meat Traceability
U.S. animal agriculture is seeking to improve its ability to trace the movement of livestock from their birthplace to slaughter. The livestock and meat industries are working with the U.S. government to develop a national animal identification (ID) plan for livestock disease tracking purposes. This report focuses on animal ID and, to a lesser extent, on meat traceability.
Date:
September 2, 2005
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
Extraction of Highly Charged AU Ions From a Multiamphere Electron Beam EBIS at BNL
Excellent progress has been made in the operation of the BNL Electron Beam Ion Source (EBIS), which is a prototype for an EBIS that could meet requirements for a RHIC preinjector. We have achieved very stable operation of the electron beam at 10 A through the EBIS trap. Ion injection of low charge gold ions from a LEVA [1] ion source and subsequent extraction of these ions with most probable charge state AU{sup 34+} has been demonstrated with electron beams up to 8A. The total ion charge for gold measured on current transformer at the EBIS exit was 55nC after a 30ms confinement period. This corresponds to {approx}85% of the theoretical ion trap capacity and exceeds our goal of 50% neutralization. The collected ion charge is proportional to the electron current and the gold charge state scales with the electron current density. Details of the EBIS configuration, total charge measurements, and TOF spectra are given.
Date:
September 2, 2001
Creator:
Beebe, E. N.; Alessi, J. G.; Gould, O.; Graham, D.; Kponou, A.; Pikin, A. et al.
Object Type:
Article
System:
The UNT Digital Library
The Genome Sequence of the Obligately Chemolithoautotrophic, Facultatively Anaerobic Bacterium Thiobacillus Denitrificans
None
Date:
September 2, 2005
Creator:
Beller, H; Chain, P; Letain, T; Chakicherla, A; Larimer, F; Richardson, P et al.
Object Type:
Article
System:
The UNT Digital Library
The National Intelligence Council: Issues and Options for Congress
The purpose of this report to describe the statutory provisions that authorize the National Intelligence Council (NIC), provide a brief history of its work, and review its role within the federal government. The report will focus on congressional interaction with the NIC and describe various options for modifying congressional oversight.
Date:
September 2, 2009
Creator:
Best, Richard A., Jr.
Object Type:
Report
System:
The UNT Digital Library
Hanford Site Environmental Surveillance Data Report for Calendar Year 2001
This document contains the tables of data on which PNNL's environmental surveillance summary information is based. This data report contains the actual raw data used to create the tables and summaries in the Hanford Site Environmental Report for Calendar Year 2001.
Date:
September 2, 2002
Creator:
Bisping, Lynn E.
Object Type:
Report
System:
The UNT Digital Library
The Air Force KC-767 Tanker Lease Proposal: Key Issues for Congress
The Air Force is proposing to replace 133 of its oldest Boeing KC-135E aerial refueling tanker aircraft by leasing 100 new Boeing KC-767 tankers instead of initially buying them outright. The proposed lease was authorized by Section 8159 of the FY2002 DOD Appropriations Act (P.L. 107-117 of January 10, 2002). The main issue for Congress is whether to approve or disapprove the lease. This report examines the lease proposal and its ramifications by providing background information on the Air Force’s tanker fleet, the Boeing 767 tanker, and the proposed lease itself. Then the report analyzes potential oversight issues for Congress relating to the merits of the proposed lease:
Date:
September 2, 2003
Creator:
Bolkcom, Christopher
Object Type:
Report
System:
The UNT Digital Library
Multi-layered Spectral Formation in SNe Ia Around Maximum Light
We use the radiative transfer code \phx\ to study the line formation of the wavelength region 5000-7000 Angstrom. This is the region where the SNe Ia defining Si II feature occurs. This region is important since the ratio of the two nearby silicon lines has been shown to correlate with the absolute blue magnitude. We use a grid of LTE synthetic spectral models to investigate the formation of line features in the spectra of SNe Ia. By isolating the main contributors to the spectral formation we show that the ions that drive the spectral ratio are FeIII, FeII, SiII and SII. While the first two strongly dominate the flux transfer, the latter two form in the same physical region inside of the supernova. We also show that the naive blackbody that one would derive from a fit to the observed spectrum is far different than the true underlying continuum.
Date:
September 2, 2008
Creator:
Bongard, Sebastien; Baron, E.; Smadja, G.; Branch, David & Hauschildt, Peter H.
Object Type:
Article
System:
The UNT Digital Library
The effect of pi-stacking, h-bonding, and electrostatic interactions on the ionization energies of nucleic acid bases: adenine-adenine, thymine-thymine and adenine-thymine dimers
A combined theoretical and experimental study of the ionized dimers of thymine and adenine, TT, AA, and AT, is presented. Adiabatic and vertical ionization energies(IEs) for monomers and dimers as well as thresholds for the appearance of the protonated species are reported and analyzed. Non-covalent interactions stronglyaffect the observed IEs. The magnitude and the nature of the effect is different for different isomers of the dimers. The computations reveal that for TT, the largestchanges in vertical IEs (0.4 eV) occur in asymmetric h-bonded and symmetric pi- stacked isomers, whereas in the lowest-energy symmetric h-bonded dimer the shiftin IEs is much smaller (0.1 eV). The origin of the shift and the character of the ionized states is different in asymmetric h-bonded and symmetric stacked isomers. Inthe former, the initial hole is localized on one of the fragments, and the shift is due to the electrostatic stabilization of the positive charge of the ionized fragment by thedipole moment of the neutral fragment. In the latter, the hole is delocalized, and the change in IE is proportional to the overlap of the fragments' MOs. The shifts in AAare much smaller due to a less effcient overlap and a smaller dipole moment. The ionization …
Date:
September 2, 2009
Creator:
Bravaya, Ksenia B.; Kostko, Oleg; Ahmed, Musahid & Krylov, Anna I.
Object Type:
Article
System:
The UNT Digital Library