Partner
UNT Libraries Government Documents Department
215
Oklahoma Historical Society
39
UNT Libraries
17
National Museum of the Pacific War/Admiral Nimitz Foundation
16
UNT Libraries Special Collections
16
Private Collection of Jim Bell
10
Sterling Municipal Library
10
Carl Albert Congressional Research and Studies Center
5
Rice University Woodson Research Center
4
Alvin Community College
3
58 More
Collection
Office of Scientific & Technical Information Technical Reports
112
Texas Digital Newspaper Program
97
Congressional Research Service Reports
70
Oklahoma Digital Newspaper Program
45
Tocker Foundation Grant
35
Government Accountability Office Reports
21
National Museum of the Pacific War Oral History Collection
16
National Museum of the Pacific War Digital Archive
16
The Greensheet
13
The Baytown Sun
10
94 More
Degree Department
Country
States
Decade
Month
Day
Language
407 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
407
next
Identified particle distributions in pp and Au+Au collisions atsqrt sNN=200 GeV
Transverse mass and rapidity distributions for charged pions, charged kaons, protons and antiprotons are reported for {radical}sNN = 200 GeV pp and Au+Au collisions at RHIC. The transverse mass distributions are rapidity independent within |y| < 0.5, consistent with a boost-invariant system in this rapidity interval. Spectral shapes and relative particle yields are similar in pp and peripheral Au+Au collisions and change smoothly to central Au+Au collisions. No centrality dependence was observed in the kaon and antiproton production rates relative to the pion production rate from medium-central to central collisions. Chemical and kinetic equilibrium model fits to our data reveal strong radial flow and relatively long duration from chemical to kinetic freeze-out in central Au+Au collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.
Date:
October 6, 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
Industrial Applications of Induced Positron Annihilation
This presentation discusses industrial applications of induced positron annihilation.
Date:
October 6, 2004
Creator:
Akers, D.
Object Type:
Presentation
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 40, Ed. 1 Thursday, October 6, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 6, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
THE IMPACT OF THE GLOBAL NUCLEAR SAFETY REGIME IN BRAZIL
A turning point of the world nuclear industry with respect to safety occurred due to the accident at Chernobyl, in 1986. A side from the tragic personal losses and the enormous financial damage, the Chernobyl accident has literally demonstrated that ''a nuclear accident anywhere is an accident everywhere''. The impact was felt immediately by the nuclear industry, with plant cancellations (e.g. Austria), elimination of national programs (e.g. Italy) and general construction delays. However, the reaction of the nuclear industry was equally immediate, which led to the proposal and establishment of a Global Nuclear Safety Regime. This regime is composed of biding international safety conventions, globally accepted safety standard, and a voluntary peer review system. In a previous work, the author has presented in detail the components of this Regime, and briefly discussed its impact in the Brazilian nuclear power organizations, including the Regulatory Body. This work, on the opposite, briefly reviews the Global Nuclear Safety Regime, and concentrates in detail in the discussion of its impact in Brazil, showing how it has produced some changes, and where the peer pressure regime has failed to produce real results.
Date:
October 6, 2004
Creator:
Almeida, C.
Object Type:
Article
System:
The UNT Digital Library
Top Jets at the LHC
We investigatethe reconstruction of high pT hadronically-decaying top quarksat the Large Hadron Collider. One of the main challenges in identifying energetictop quarks is that the decay products become increasingly collimated. This reducesthe efficacy of conventional reconstruction methods that exploit the topology of thetop quark decay chain. We focus on the cases where the decay products of the topquark are reconstructed as a single jet, a"top-jet." The most basic"top-tag" methodbased on jet mass measurement is considered in detail. To analyze the feasibility ofthe top-tagging method, both theoretical and experimental aspects of the large QCDjet background contribution are examined. Based on a factorization approach, wederive a simple analytic approximation for the shape of the QCD jet mass spectrum.We observe very good agreement with the Monte Carlo simulation. We consider high pT tt bar production in the Standard Model as an example, and show that our theoretical QCD jet mass distributions can efficiently characterize the background via sideband analyses. We show that with 25 fb-1 of data, our approach allows us to resolve top-jets with pT _> 1 TeV, from the QCD background, and about 1.5 TeV top-jets with 100 fb-1, without relying on b-tagging. To further improve the significancewe consider jet shapes …
Date:
October 6, 2008
Creator:
Almeida, L.G.; Lee, S.J.; Perez, G.; Sung, I. & Virzi, J.
Object Type:
Article
System:
The UNT Digital Library
3-D Thermal Evaluations for a Fueled Experiment in the Advanced Test Reactor
The DOE Advanced Fuel Cycle Initiative and Generation IV reactor programs are developing new fuel types for use in the current Light Water Reactors and future advanced reactor concepts. The Advanced Gas Reactor program is planning to test fuel to be used in the Next Generation Nuclear Plant (NGNP) nuclear reactor. Preliminary information for assessing performance of the fuel will be obtained from irradiations performed in the Advanced Test Reactor large ''B'' experimental facility. A test configuration has been identified for demonstrating fuel types typical of gas cooled reactors or fast reactors that may play a role in closing the fuel cycle or increasing efficiency via high temperature operation Plans are to have 6 capsules, each containing 12 compacts, for the test configuration. Each capsule will have its own temperature control system. Passing a helium-neon gas through the void regions between the fuel compacts and the graphite carrier and between the graphite carrier and the capsule wall will control temperature. This design with three compacts per axial level was evaluated for thermal performance to ascertain the temperature distributions in the capsule and test specimens with heating rates that encompass the range of initial heat generation rates.
Date:
October 6, 2004
Creator:
Ambrosek, Richard G.; Chang, Gray S. & Utterbeck, Debby J.
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 173, Ed. 1 Monday, October 6, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 6, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 161, Ed. 1 Wednesday, October 6, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 6, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Black Hole Entropy, Marginal Stability and Mirror Symmetry
We consider the superconformal quantum mechanics associated to BPS black holes in type IIB Calabi-Yau compactifications. This quantum mechanics describes the dynamics of D-branes in the near-horizon attractor geometry of the black hole. In many cases, the black hole entropy can be found by counting the number of chiral primaries in this quantum mechanics. Both the attractor mechanism and notions of marginal stability play important roles in generating the large number of microstates required to explain this entropy. We compute the microscopic entropy explicitly in a few different cases, where the theory reduces to quantum mechanics on the moduli space of special Lagrangians. Under certain assumptions, the problem may be solved by implementing mirror symmetry as three T-dualities: this is essentially the mirror of a calculation by Gaiotto, Strominger and Yin. In some simple cases, the calculation may be done in greater generality without resorting to conjectures about mirror symmetry. For example, the K3 x T{sub 2} case may be studied precisely using the Fourier-Mukai transform.
Date:
October 6, 2006
Creator:
Aspinwall, Paul S.; Maloney, Alexander & Simons, Aaron
Object Type:
Article
System:
The UNT Digital Library
Observation of CP violation in B^0 to eta' K^0
The authors present measurements of the time-dependent CP-violation parameters S and C in B{sup 0} {yields} K{sup 0} decays. The data sample corresponds to 384 million B{bar B} pairs produced by e{sup +}e{sup -} annihilation at the {Upsilon}(4S). The results are S = 0.58 {+-} 0.10 {+-} 0.03, and C = -0.16 {+-} 0.07 {+-} 0.03. They observe mixing-induced CP violation with a significance of 5.5 standard deviations in this b {yields} s penguin dominated mode.
Date:
October 6, 2006
Creator:
Aubert, B.
Object Type:
Article
System:
The UNT Digital Library
The Debt Limit: History and Recent Increases
This report contains the history and increases of the debt limit for the second time in 2008.
Date:
October 6, 2008
Creator:
Austin, D. Andrew & Levit, Mindy R.
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Earl E. Ambrose, October 6, 2007
Access:
Use of this item is restricted to the UNT Community
Interview with Earl E. Ambrose, Korean War veteran, as part of the Tarrant County War Veterans Oral History Project. The interview includes Ambrose's personal experiences of childhood, basic training, volunteering for service in Korea, and attending Arlington State College using GI Bill benefits. Additionally, Ambrose discusses family experiences in military service, the decision to join the Marines, assignments to Quantico and Yorktown, Virginia, his brief combat experience and assignment to the Main Line of Resistance near the Imjin River, his discharge from the Marines, and his career with Bell Helicopter.
Date:
October 6, 2007
Creator:
Ball, Gregory & Ambrose, Earl E.
Object Type:
Book
System:
The UNT Digital Library
Designing PV Incentive Programs to Promote Performance: A Reviewof Current Practice in the U.S.
In the U.S., the increasing financial support for customer-sited photovoltaic (PV) systems provided through publicly-funded incentive programs has heightened concerns about the long-term performance of these systems. Given the barriers that customers face to ensuring that their PV systems perform well, and the responsibility that PV incentive programs bear to ensure that public funds are prudently spent, these programs should, and often do, play a critical role in addressing PV system performance. To provide a point of reference for assessing the current state of the art, and to inform program design efforts going forward, we examine the approaches to encouraging PV system performance used by 32 prominent PV incentive programs in the U.S. We identify eight general strategies or groups of related strategies that these programs have used to address factors that affect performance, and describe key implementation details. Based on this review, we then offer recommendations for how PV incentive programs can be effectively designed to mitigate potential performance issues.
Date:
October 6, 2006
Creator:
Barbose, Galen; Wiser, Ryan & Bolinger, Mark
Object Type:
Article
System:
The UNT Digital Library
Investigation of Anderson lattice behavior in Yb1-xLuxAl3
Measurements of magnetic susceptibility {chi}(T), specific heat C(T), Hall coefficient R{sub H}(T), and Yb valence {nu} = 2 + n{sub f} [f-occupation number n{sub f} (T) determined from Yb L{sub 3} x-ray absorption measurements] were carried out on single crystals of Yb{sub 1-x}Lu{sub x}Al{sub 3}. The low temperature anomalies observed in {chi}(T) and C(T) corresponding to an energy scale T{sub coh} {approx} 40 K in the intermediate valence, Kondo lattice compound YbAl{sub 3} are suppressed by Lu concentrations as small as 5% suggesting these low-T anomalies are extremely sensitive to disorder and, therefore, are a true coherence effect. By comparing the temperature dependence of various physical quantities to the predictions of the Anderson Impurity Model, the slow crossover behavior observed in YbAl{sub 3}, in which the data evolve from a low-temperature coherent, Fermi-liquid regime to a high temperature local moment regime more gradually than predicted by the Anderson Impurity Model, appears to evolve to fast crossover behavior at x {approx} 0.7 where the evolution is more rapid than predicted. These two phenomena found in Yb{sub 1-x}Lu{sub x}Al{sub 3}, i.e., the low-T anomalies and the slow/fast crossover behavior are discussed in relation to recent theories of the Anderson lattice.
Date:
October 6, 2003
Creator:
Bauer, E. D.; Booth, C. H.; Lawrence, J. M.; Hundley, M. F.; Sarrao, J. L.; Thompson, J. D. et al.
Object Type:
Article
System:
The UNT Digital Library
A Laser Technology Test Facility for Laser Inertial Fusion Energy (LIFE)
A LIFE laser driver needs to be designed and operated which meets the rigorous requirements of the NIF laser system while operating at high average power, and operate for a lifetime of >30 years. Ignition on NIF will serve to demonstrate laser driver functionality, operation of the Mercury laser system at LLNL demonstrates the ability of a diode-pumped solid-state laser to run at high average power, but the operational lifetime >30 yrs remains to be proven. A Laser Technology test Facility (LTF) has been designed to specifically address this issue. The LTF is a 100-Hz diode-pumped solid-state laser system intended for accelerated testing of the diodes, gain media, optics, frequency converters and final optics, providing system statistics for billion shot class tests. These statistics will be utilized for material and technology development as well as economic and reliability models for LIFE laser drivers.
Date:
October 6, 2009
Creator:
Bayramian, A. J.; Campbell, R. W.; Ebbers, C. A.; Freitas, B. L.; Latkowski, J.; Molander, W. A. et al.
Object Type:
Article
System:
The UNT Digital Library
The Grandview Tribune (Grandview, Tex.), Vol. 111, No. 6, Ed. 1 Friday, October 6, 2006
Weekly newspaper from Grandview, Texas that includes local, state, and national news along with advertising.
Date:
October 6, 2006
Creator:
Beck-Adams, Candie
Object Type:
Newspaper
System:
The Portal to Texas History
Mad Cow Disease: Agricultural Issues for Congress
This report includes information regarding various agriculture issues surrounding mad cow disease. Topics of discussion include risk analysis, safeguards, and trade issues.
Date:
October 6, 2005
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
Energy and Water Development: FY2009 Appropriations
None
Date:
October 6, 2008
Creator:
Behrens, Carl E.; Andrews, Anthony; Bearden, David M.; Carter, Nicole T.; Holt, Mark; Lane, Nic et al.
Object Type:
Report
System:
The UNT Digital Library
The Cost of Iraq, Afghanistan and Enhanced Base Security since 9/11
Since the 9/11 terrorist attacks, CRS estimates that the Administration has allocated a total of about $357 billion for military operations, reconstruction, embassy costs, and various foreign aid programs in Iraq and Afghanistan, and for enhanced security at defense bases. This total includes $45 billion in “bridge” funding for the Department of Defense (DOD) as provided in H.J.Res. 68 /P.L.109- 77, a FY2006 Continuing Resolution, which was signed by the President on September 30, 2005.
Date:
October 6, 2005
Creator:
Belasco, Amy
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Howard Bell, October 6, 2005
The National Museum of the Pacific War presents an oral interview with Howard Bell. Bell finished college at Texas Tech before joining the Army Air Forces in 1942. He was commissioned and sent to India where he joined the 341st Bomb Group as an engineer officer. He shares several anecdotes about his experiences.
Date:
October 6, 2005
Creator:
Bell, Howard
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Howard Bell, October 6, 2005
The National Museum of the Pacific War presents an oral interview with Howard Bell. Bell finished college at Texas Tech before joining the Army Air Forces in 1942. He was commissioned and sent to India where he joined the 341st Bomb Group as an engineer officer. He shares several anecdotes about his experiences.
Date:
October 6, 2005
Creator:
Bell, Howard
Object Type:
Text
System:
The Portal to Texas History
1894 Penn Building on the Courthouse Square
Photograph of 1894 Penn Building on Main Street of the Courthouse Square in downtown Waxahachie, Texas.
Date:
October 6, 2007
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1895 Ellis County Courthouse Clock Tower
Photograph of the 1895 Ellis County courthouse clock tower from the south. The clock tower is nine stories tall.
Date:
October 6, 2007
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1895 Ellis County Courthouse Clock Tower and Eagles
Photograph of the clock and bell tower of the 1895 Ellis County Courthouse. A sculptures of eagles are perched on each side of the roof.
Date:
October 6, 2007
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History