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Beyond DVFS: A First Look at Performance Under a Hardware-Enforced Power Bound (open access)

Beyond DVFS: A First Look at Performance Under a Hardware-Enforced Power Bound

None
Date: March 5, 2012
Creator: Rountree, B. R.; Ahn, D. H.; de Supinski, B. R.; Lowenthal, D. K. & Schulz, M.
Object Type: Article
System: The UNT Digital Library

Composition Recital: 2012-03-05 – Spectrum and Collevoxus Quartet

Spectrum concert performed at the UNT College of Music Recital Hall.
Date: March 5, 2012
Creator: Collevoxus Quartet
Object Type: Sound
System: The UNT Digital Library
Doctoral Lecture Recital: 2012-03-05 – Chris Lee, guitar transcript

Doctoral Lecture Recital: 2012-03-05 – Chris Lee, guitar

Lecture recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: March 5, 2012
Creator: Lee, Chris
Object Type: Sound
System: The UNT Digital Library

Eisemann Concert Center Plano

Webpage from McKinney TXSSAR website containing photographs from an event at the Eisemann Center on March 5, 2012.
Date: March 5, 2012
Creator: Texas Society Sons of the American Revolution, McKinney Chapter 63
Object Type: Website
System: The UNT Digital Library
Extreme Star Formation in the Host Galaxies of the Fastest Growing Supermassive Black Holes at z = 4.8 (open access)

Extreme Star Formation in the Host Galaxies of the Fastest Growing Supermassive Black Holes at z = 4.8

This article reports new Herschel observations of extremely luminous optically selected active galactic nuclei.
Date: March 5, 2012
Creator: Mor, Rivay; Netzer, Hagai; Trakhtenbrot, Benny; Shemmer, Ohad & Lira, Paulina
Object Type: Article
System: The UNT Digital Library
Gauge Properties Of The Guiding Center Variational Symplectic Integrator (open access)

Gauge Properties Of The Guiding Center Variational Symplectic Integrator

Recently, variational symplectic algorithms have been developed for the long-time simulation of charged particles in magnetic fields1-3. As a direct consequence of their derivation from a discrete variational principle, these algorithms have very good long-time energy conservation, as well as exactly preserving discrete momenta. We present stability results for these algorithms, focusing on understanding how explicit variational integrators can be designed for this type of system. It is found that for explicit algorithms an instability arises because the discrete symplectic structure does not become the continuous structure in the t → 0 limit. We examine how a generalized gauge transformation can be used to put the Lagrangian in the "antisymmetric discretization gauge," in which the discrete symplectic structure has the correct form, thus eliminating the numerical instability. Finally, it is noted that the variational guiding center algorithms are not electromagnetically gauge invariant. By designing a model discrete Lagrangian, we show that the algorithms are approximately gauge invariant as long as A and #30; are relatively smooth. A gauge invariant discrete Lagrangian is very important in a variational particle-in-cell algorithm where it ensures current continuity and preservation of Gauss's law4.
Date: March 5, 2012
Creator: J. Squire, H. Qin and W. Tang
Object Type: Report
System: The UNT Digital Library
A Grid-based Binary Model for Coulomb Collisions in Plasmas (open access)

A Grid-based Binary Model for Coulomb Collisions in Plasmas

None
Date: March 5, 2012
Creator: Cohen, B I; Dimits, A M & Strozzi, D J
Object Type: Article
System: The UNT Digital Library

Guest Artist: 2012-03-05 - Denton High School Fine Arts

Access: Use of this item is restricted to the UNT Community
A fine arts concert at the UNT College of Music Winspear.
Date: March 5, 2012
Creator: Denton High School Choir
Object Type: Sound
System: The UNT Digital Library
A Hierarchical Approach for Load Balancing on Parallel Multi-core Systems (open access)

A Hierarchical Approach for Load Balancing on Parallel Multi-core Systems

None
Date: March 5, 2012
Creator: Pilla, L L; Ribeiro, C P; Cordeiro, D; Mei, C; Bhatele, A; Navaux, P A et al.
Object Type: Article
System: The UNT Digital Library

Master's Recital: 2012-03-05 - Derek Klinge, tenor and bass trombones

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Master of Music (MM) degree.
Date: March 5, 2012
Creator: Klinge, Derek & Sukhina, Nataliya
Object Type: Sound
System: The UNT Digital Library
Medicare Advantage Risk Adjustment and Risk Adjustment Data Validation Audits (open access)

Medicare Advantage Risk Adjustment and Risk Adjustment Data Validation Audits

None
Date: March 5, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Multi-Scale Mass Transfer Processes Controlling Natural Attenuation and Engineered Remediation: An IFRC Focused on Hanford’s 300 Area Uranium Plume January 2011 to January 2012 (open access)

Multi-Scale Mass Transfer Processes Controlling Natural Attenuation and Engineered Remediation: An IFRC Focused on Hanford’s 300 Area Uranium Plume January 2011 to January 2012

The Integrated Field Research Challenge (IFRC) at the Hanford Site 300 Area uranium (U) plume addresses multi-scale mass transfer processes in a complex subsurface biogeochemical setting where groundwater and riverwater interact. A series of forefront science questions on reactive mass transfer motivates research. These questions relate to the effect of spatial heterogeneities; the importance of scale; coupled interactions between biogeochemical, hydrologic, and mass transfer processes; and measurements and approaches needed to characterize and model a mass-transfer dominated biogeochemical system. The project was initiated in February 2007, with CY 2007, CY 2008, CY 2009, and CY 2010 progress summarized in preceding reports. A project peer review was held in March 2010, and the IFRC project acted upon all suggestions and recommendations made in consequence by reviewers and SBR/DOE. These responses have included the development of 'Modeling' and 'Well-Field Mitigation' plans that are now posted on the Hanford IFRC web-site, and modifications to the IFRC well-field completed in CY 2011. The site has 35 instrumented wells, and an extensive monitoring system. It includes a deep borehole for microbiologic and biogeochemical research that sampled the entire thickness of the unconfined 300 A aquifer. Significant, impactful progress has been made in CY 2011 including: …
Date: March 5, 2012
Creator: Zachara, John M.; Bjornstad, Bruce N.; Christensen, John N.; Conrad, Mark S.; Fredrickson, Jim K.; Freshley, Mark D. et al.
Object Type: Report
System: The UNT Digital Library
The National Institute of Standards and Technology: An Appropriations Overview (open access)

The National Institute of Standards and Technology: An Appropriations Overview

This report is a look at the funding for the National Institute of Standards and Technology (NIST), a laboratory of the Department of Commerce. NIST is mandated to provide technical services to facilitate the competitiveness of U.S. industry. In 2007, the Advanced Technology Program (ATP) was terminated and replaced by the Technology Innovation Program (TIP). However, no funding was appropriated for TIP in the FY2012 appropriations legislation and NIST is "...currently taking the necessary actions for an orderly shutdown." In April 2009, the current President stated his decision to double the budget of key science agencies, including NIST, over the next 10 years. While additional funding has been forthcoming, it remains to be seen how support for internal R&D at NIST will evolve and how this might affect financing of extramural efforts such as MEP. The dispensation of funding for NIST programs may influence the way by which the federal government supports technology development for commercial application.
Date: March 5, 2012
Creator: Schacht, Wendy H.
Object Type: Report
System: The UNT Digital Library
The National Telecommunications and Information Administration (NTIA): Policies, Programs, and Funding (open access)

The National Telecommunications and Information Administration (NTIA): Policies, Programs, and Funding

This report discusses the National Telecommunications and Information Administration (NTIA), which is an agency of the Department of Commerce set up to advise on domestic and international telecommunications and information policies.
Date: March 5, 2012
Creator: Moore, Linda K.
Object Type: Report
System: The UNT Digital Library
The Observer III (Lexington, Okla.), Vol. 2, No. 5, Ed. 1 Monday, March 5, 2012 (open access)

The Observer III (Lexington, Okla.), Vol. 2, No. 5, Ed. 1 Monday, March 5, 2012

Semi-monthly newspaper from Lexington, Oklahoma that includes local, state, and national news along with advertising.
Date: March 5, 2012
Creator: Murphy, Lou Ann
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 97, No. 114, Ed. 1 Monday, March 5, 2012 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 97, No. 114, Ed. 1 Monday, March 5, 2012

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: March 5, 2012
Creator: Lusk, Chris
Object Type: Newspaper
System: The Gateway to Oklahoma History
Private Pensions: Better Agency Coordination Could Help Small Employers Address Challenges to Plan Sponsorship (open access)

Private Pensions: Better Agency Coordination Could Help Small Employers Address Challenges to Plan Sponsorship

A letter report issued by the Government Accountability Office with an abstract that begins "Based on available data, about 14 percent of small employers sponsor some type of retirement plan. Overall, GAO found that the likelihood that a small employer will sponsor a retirement plan largely depends on the size of the employer’s workforce and the workers’ average wages more than on the industry in which the employer operates and the geographic region in which the employer is located. GAO found the greatest likelihood of plan sponsorship was among small employers with larger numbers of employees and those paying an average annual wage of $50,000 to $99,999. GAO also found that the most common plans sponsored by small employers are 401(k)s and Savings Incentive Match Plans for Employees (SIMPLE) Individual Retirement Arrangements (IRA)—an employer-sponsored IRA designed for small employers—at 46 percent and 40 percent, respectively, of total plans. However, IRS currently does not have the means to collect information on employers that sponsor another type of IRA plan designed for small employers, the Simplified Employee Pension (SEP) IRA plan, which limits what is known about employers that sponsor these plans."
Date: March 5, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Radar-cross-section reduction of wind turbines. part 1. (open access)

Radar-cross-section reduction of wind turbines. part 1.

In recent years, increasing deployment of large wind-turbine farms has become an issue of growing concern for the radar community. The large radar cross section (RCS) presented by wind turbines interferes with radar operation, and the Doppler shift caused by blade rotation causes problems identifying and tracking moving targets. Each new wind-turbine farm installation must be carefully evaluated for potential disruption of radar operation for air defense, air traffic control, weather sensing, and other applications. Several approaches currently exist to minimize conflict between wind-turbine farms and radar installations, including procedural adjustments, radar upgrades, and proper choice of low-impact wind-farm sites, but each has problems with limited effectiveness or prohibitive cost. An alternative approach, heretofore not technically feasible, is to reduce the RCS of wind turbines to the extent that they can be installed near existing radar installations. This report summarizes efforts to reduce wind-turbine RCS, with a particular emphasis on the blades. The report begins with a survey of the wind-turbine RCS-reduction literature to establish a baseline for comparison. The following topics are then addressed: electromagnetic model development and validation, novel material development, integration into wind-turbine fabrication processes, integrated-absorber design, and wind-turbine RCS modeling. Related topics of interest, including alternative …
Date: March 5, 2012
Creator: Brock, Billy C.; Loui, Hung; McDonald, Jacob J.; Paquette, Joshua A.; Calkins, David A.; Miller, William K. et al.
Object Type: Report
System: The UNT Digital Library
The Ranger (San Antonio, Tex.), Vol. 86, No. 15, Ed. 1 Monday, March 5, 2012 (open access)

The Ranger (San Antonio, Tex.), Vol. 86, No. 15, Ed. 1 Monday, March 5, 2012

Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date: March 5, 2012
Creator: San Antonio College
Object Type: Newspaper
System: The Portal to Texas History
Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources (open access)

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources

A space-charge-limited beam with current densities (J) exceeding 1 mA/cm{sup 2} have been measured from lithium alumino-silicate ion sources at a temperature of #24;~1275#14;{degrees} C. At higher extraction voltages, the source appears to become emission limited with J #21;{>=} 1.5 mA/cm{sup 2}, and J increases weakly with the applied voltage. A 6.35 mm diameter source with an alumino-silicate coating, {<=}#20;0.25 mm thick, has a measured lifetime of ~#24;40 hours at ~#24;1275#14;{degrees} C, when pulsed at 0.05 Hz and with pulse length of #24;~6 μs each. At this rate, the source lifetime was independent of the actual beam charge extracted due to the loss of neutral atoms at high temperature. The source lifetime increases with the amount of alumino-silicate coated on the emitting surface, and may also be further extended if the temperature is reduced between pulses.
Date: March 5, 2012
Creator: Roy, Prabir K.; Greenway, Wayne G. & Kwan, Joe W
Object Type: Article
System: The UNT Digital Library
The suppression of magnetism and the development of superconductivity within the collapsed tetragonal phase of Ca0.67Sr0.33Fe2As2 at high pressure (open access)

The suppression of magnetism and the development of superconductivity within the collapsed tetragonal phase of Ca0.67Sr0.33Fe2As2 at high pressure

None
Date: March 5, 2012
Creator: Jeffries, J R; Butch, N P; Kirshenbaum, K; Saha, S R; Weir, S T; Vohra, Y K et al.
Object Type: Article
System: The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 114, No. 041, Ed. 1 Monday, March 5, 2012 (open access)

Sweetwater Reporter (Sweetwater, Tex.), Vol. 114, No. 041, Ed. 1 Monday, March 5, 2012

Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date: March 5, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History