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2011 Computation Directorate Annual Report (open access)

2011 Computation Directorate Annual Report

From its founding in 1952 until today, Lawrence Livermore National Laboratory (LLNL) has made significant strategic investments to develop high performance computing (HPC) and its application to national security and basic science. Now, 60 years later, the Computation Directorate and its myriad resources and capabilities have become a key enabler for LLNL programs and an integral part of the effort to support our nation's nuclear deterrent and, more broadly, national security. In addition, the technological innovation HPC makes possible is seen as vital to the nation's economic vitality. LLNL, along with other national laboratories, is working to make supercomputing capabilities and expertise available to industry to boost the nation's global competitiveness. LLNL is on the brink of an exciting milestone with the 2012 deployment of Sequoia, the National Nuclear Security Administration's (NNSA's) 20-petaFLOP/s resource that will apply uncertainty quantification to weapons science. Sequoia will bring LLNL's total computing power to more than 23 petaFLOP/s-all brought to bear on basic science and national security needs. The computing systems at LLNL provide game-changing capabilities. Sequoia and other next-generation platforms will enable predictive simulation in the coming decade and leverage industry trends, such as massively parallel and multicore processors, to run petascale applications. …
Date: April 11, 2012
Creator: Crawford, D. L.
Object Type: Report
System: The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 261, Ed. 1 Wednesday, April 11, 2012 (open access)

The Altus Times (Altus, Okla.), Vol. 112, No. 261, Ed. 1 Wednesday, April 11, 2012

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: April 11, 2012
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Amplitude Analysis and Measurement of the Time-dependent CP Asymmetry of B0 to KsKsKs Decays (open access)

Amplitude Analysis and Measurement of the Time-dependent CP Asymmetry of B0 to KsKsKs Decays

We present the first results on the Dalitz-plot structure and improved measurements of the time-dependent CP-violation parameters of the process B{sup 0} {yields} K{sub S}{sup 0}K{sub S}{sup 0}K{sub S}{sup 0} obtained using 468 x 10{sup 6} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. The Dalitz-plot structure is probed by a time-integrated amplitude analysis that does not distinguish between B{sup 0} and {bar B}{sup 0} decays. We measure the total inclusive branching fraction {Beta}(B{sup 0} {yields} K{sub S}{sup 0}K{sub S}{sup 0}K{sub S}{sup 0}) = (6.19 {+-} 0.48 {+-} 0.15 {+-} 0.12) x 10{sup -6}, where the first uncertainty is statistical, the second is systematic, and the third represents the Dalitz-plot signal model dependence. We also observe evidence for the intermediate resonant states f{sub 0}(980), f{sub 0}(1710), and f{sub 2}(2010). Their respective product branching fractions are measured to be (2.70{sub -1.19}{sup +1.25} {+-} 0.36 {+-} 1.17) x 10{sup -6}, (0.50{sub -0.24}{sup +0.46} {+-} 0.04 {+-} 0.10) x 10{sup -6}, and (0.54{sub -0.20}{sup +0.21} {+-} 0.03 {+-} 0.52) x 10{sup -6}. Additionally, we determine the mixing-induced CP-violation parameters to be S = -0.94{sub -0.21}{sup +0.24} {+-} 0.06 and C = -0.17 {+-} 0.18 {+-} …
Date: April 11, 2012
Creator: Lees, J. P.
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 92, No. 72, Ed. 1 Wednesday, April 11, 2012 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 92, No. 72, Ed. 1 Wednesday, April 11, 2012

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: April 11, 2012
Creator: Yanelli, Adam
Object Type: Newspaper
System: The Portal to Texas History

Berkner High School

Webpage from McKinney TXSSAR website containing photographs from an event at Berkner High School on April 11, 2012.
Date: April 11, 2012
Creator: Texas Society Sons of the American Revolution, McKinney Chapter 63
Object Type: Website
System: The UNT Digital Library
Brain-Targeted Proanthocyanidin Metabolites for Alzheimer's Disease Treatment (open access)

Brain-Targeted Proanthocyanidin Metabolites for Alzheimer's Disease Treatment

Article on brain-targeted proanthocyanidin metabolites for Alzheimer's disease treatment.
Date: April 11, 2012
Creator: Wang, Jun; Ferruzzi, Mario G.; Ho, Lap; Blount, Jack W.; Janle, Elsa M.; Gong, Bing et al.
Object Type: Article
System: The UNT Digital Library
Charge transport properties of CdMnTe radiation detectors (open access)

Charge transport properties of CdMnTe radiation detectors

Growth, fabrication and characterization of indium-doped cadmium manganese telluride (CdMnTe)radiation detectors have been described. Alpha-particle spectroscopy measurements and time resolved current transient measurements have yielded an average charge collection efficiency approaching 100 %. Spatially resolved charge collection efficiency maps have been produced for a range of detector bias voltages. Inhomogeneities in the charge transport of the CdMnTe crystals have been associated with chains of tellurium inclusions within the detector bulk. Further, it has been shown that the role of tellurium inclusions in degrading chargecollection is reduced with increasing values of bias voltage. The electron transit time was determined from time of flight measurements. From the dependence of drift velocity on applied electric field the electron mobility was found to be n = (718 55) cm2/Vs at room temperature.
Date: April 11, 2012
Creator: Kim, K.; Rafiel, R.; Boardman, M.; Reinhard, I.; Sarbutt, A.; Watt, G. et al.
Object Type: Report
System: The UNT Digital Library
Cherokeean Herald (Rusk, Tex.), Vol. 163, No. 7, Ed. 1 Wednesday, April 11, 2012 (open access)

Cherokeean Herald (Rusk, Tex.), Vol. 163, No. 7, Ed. 1 Wednesday, April 11, 2012

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: April 11, 2012
Creator: Gonzalez, Terrie
Object Type: Newspaper
System: The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 31, No. 11, Ed. 1 Wednesday, April 11, 2012 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 31, No. 11, Ed. 1 Wednesday, April 11, 2012

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: April 11, 2012
Creator: Mann, Rick
Object Type: Newspaper
System: The Portal to Texas History
Comptroller Susan Combs Distributes $489 Million in Monthly Sales Tax Revenue to Local Governments (open access)

Comptroller Susan Combs Distributes $489 Million in Monthly Sales Tax Revenue to Local Governments

This document provides information on the distributions of $489 million in monthly sales tax revenue to local governments.
Date: April 11, 2012
Creator: Combs, Susan
Object Type: Book
System: The Portal to Texas History

[Concert Poster: Real Live Tigers]

Poster/flyer advertising a concert by Real Live Tigers, Sarah Reddington, New Science Projects, Kelli Shay Hicks and A Childlike Fear on April 11, 2012, at Rubber Gloves Rehearsal Studios in Denton, TX. Poster is all black and white with a line drawing of a house sitting on a cloud. Event details and performance line up are in block letters.
Date: April 11, 2012
Creator: unknown
Object Type: Poster
System: The UNT Digital Library
Delta f Monte Carlo Calculation Of Neoclassical Transport In Perturbed Tokamaks (open access)

Delta f Monte Carlo Calculation Of Neoclassical Transport In Perturbed Tokamaks

Non-axisymmetric magnetic perturbations can fundamentally change neoclassical transport in tokamaks by distorting particle orbits on deformed or broken flux surfaces. This so-called non-ambipolar transport is highly complex, and eventually a numerical simulation is required to achieve its precise description and understanding. A new delta#14;f particle code (POCA) has been developed for this purpose using a modi ed pitch angle collision operator preserving momentum conservation. POCA was successfully benchmarked for neoclassical transport and momentum conservation in axisymmetric con guration. Non-ambipolar particle flux is calculated in the non-axisymmetric case, and results show a clear resonant nature of non-ambipolar transport and magnetic braking. Neoclassical toroidal viscosity (NTV) torque is calculated using anisotropic pressures and magnetic fi eld spectrum, and compared with the generalized NTV theory. Calculations indicate a clear #14;B2 dependence of NTV, and good agreements with theory on NTV torque pro les and amplitudes depending on collisionality.
Date: April 11, 2012
Creator: Kimin Kim, Jong-Kyu Park, Gerrit Kramer and Allen H. Boozer
Object Type: Report
System: The UNT Digital Library
Detention of U.S. Persons as Enemy Belligerents (open access)

Detention of U.S. Persons as Enemy Belligerents

The detainee provisions passed as part of the National Defense Authorization Act for FY2012 affirm that the Authorization for Use of Military Force in response to the terrorist attacks of September 11, 2001, authorizes the detention of persons captured in connection with hostilities. This report provides a background to the legal issues presented, followed by a brief introduction to the law of war pertinent to the detention of different categories of individuals. An overview of U.S. practice during wartime to detain persons deemed dangerous to the national security is presented.
Date: April 11, 2012
Creator: Elsea, Jennifer K.
Object Type: Report
System: The UNT Digital Library
The Ennis Daily News (Ennis, Tex.), Ed. 1 Wednesday, April 11, 2012 (open access)

The Ennis Daily News (Ennis, Tex.), Ed. 1 Wednesday, April 11, 2012

Daily newspaper from Ennis, Texas that includes local, state and national news along with advertising.
Date: April 11, 2012
Creator: Todaro, Nick
Object Type: Newspaper
System: The Portal to Texas History

Ensemble: 2012-04-11 – Concert Band

Access: Use of this item is restricted to the UNT Community
Concert Band concert performed at the UNT College of Music Winspear Hall.
Date: April 11, 2012
Creator: University of North Texas. Concert Band I.
Object Type: Video
System: The UNT Digital Library

Ensemble: 2012-04-11 – Concert Band

Access: Use of this item is restricted to the UNT Community
A symphonic band concert performed at the UNT College of Music Winspear Hall.
Date: April 11, 2012
Creator: University of North Texas. Concert Band I.
Object Type: Sound
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, April 11, 2012 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, April 11, 2012

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: April 11, 2012
Creator: DeSilver, Debi
Object Type: Newspaper
System: The Gateway to Oklahoma History

Faculty and Guest Artist Recital: 2012-04-11 - Gustavo Romero, piano and Jinson Kim, piano

Access: Use of this item is restricted to the UNT Community
A piano recital performed at the UNT College of Music Voertman Hall.
Date: April 11, 2012
Creator: Romero, Gustavo & Kim, Jinson
Object Type: Sound
System: The UNT Digital Library
Federal Reserve Banks: Areas for Improvement in Information Systems Controls (open access)

Federal Reserve Banks: Areas for Improvement in Information Systems Controls

Correspondence issued by the Government Accountability Office with an abstract that begins ""
Date: April 11, 2012
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Fermi Large Area Telescope Measurements of the Diffuse Gamma-Ray Emission at Intermediate Galactic Latitudes (open access)

Fermi Large Area Telescope Measurements of the Diffuse Gamma-Ray Emission at Intermediate Galactic Latitudes

The diffuse galactic {gamma}-ray emission is produced by cosmic rays (CRs) interacting with the interstellar gas and radiation field. Measurements by the Energetic Gamma-Ray Experiment Telescope (EGRET) instrument on the Compton Gamma-Ray Observatory indicated excess {gamma}-ray emission {ge}1 GeV relative to diffuse galactic {gamma}-ray emission models consistent with directly measured CR spectra (the so-called 'EGRET GeV excess'). The Large Area Telescope (LAT) instrument on the Fermi Gamma-Ray Space Telescope has measured the diffuse {gamma}-ray emission with improved sensitivity and resolution compared to EGRET. We report on LAT measurements for energies 100 MeV to 10 GeV and galactic latitudes 10{sup o} {le} |b| {le} 20{sup o}. The LAT spectrum for this region of the sky is well reproduced by a diffuse galactic {gamma}-ray emission model that is consistent with local CR spectra and inconsistent with the EGRET GeV excess.
Date: April 11, 2012
Creator: Abdo, A. A.; Ackermann, M.; Ajello, M.; Anderson, B.; Atwood, W. B.; Axelsson, M. et al.
Object Type: Article
System: The UNT Digital Library
Godiva IV and Juliet Diagnostics CED-1, Rev. 1 (IER-176) (open access)

Godiva IV and Juliet Diagnostics CED-1, Rev. 1 (IER-176)

The Juliet experiment is currently in preliminary design (IER-128). This experiment will utilize a suite of diagnostics to measure the physical state of the device (temperature, surface motion, stress, etc.) and the total and time rate of change of neutron and gamma fluxes. A variety of potential diagnostics has been proposed in this CED-1 report. Based on schedule and funding, a subset of diagnostics will be selected for testing using the Godiva IV pulsed reactor as a source of neutrons and gammas. The diagnostics development and testing will occur over a two year period (FY12-13) culminating in a final set of diagnostics to be fielded for he Juliet experiment currently proposed for execution in FY15.
Date: April 11, 2012
Creator: Scorby, J C & Myers, W L
Object Type: Report
System: The UNT Digital Library
The Greensheet (Dallas, Tex.), Vol. 36, No. 8, Ed. 1 Wednesday, April 11, 2012 (open access)

The Greensheet (Dallas, Tex.), Vol. 36, No. 8, Ed. 1 Wednesday, April 11, 2012

Free weekly newspaper that includes business and classified advertising.
Date: April 11, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 36, No. 9, Ed. 1 Wednesday, April 11, 2012 (open access)

The Greensheet (Dallas, Tex.), Vol. 36, No. 9, Ed. 1 Wednesday, April 11, 2012

Free weekly newspaper that includes business and classified advertising.
Date: April 11, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 124, Ed. 1 Wednesday, April 11, 2012 (open access)

The Greensheet (Houston, Tex.), Vol. 43, No. 124, Ed. 1 Wednesday, April 11, 2012

Free weekly newspaper that includes business and classified advertising.
Date: April 11, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History