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N >= 4 Supergravity Amplitudes from Gauge Theory at Two Loops (open access)

N >= 4 Supergravity Amplitudes from Gauge Theory at Two Loops

We present the full two-loop four-graviton amplitudes in N = 4, 5, 6 supergravity. These results were obtained using the double-copy structure of gravity, which follows from the recently conjectured color-kinematics duality in gauge theory. The two-loop four-gluon scattering amplitudes in N = 0, 1, 2 supersymmetric gauge theory are a second essential ingredient. The gravity amplitudes have the expected infrared behavior: the two-loop divergences are given in terms of the squares of the corresponding one-loop amplitudes. The finite remainders are presented in a compact form. The finite remainder for N = 8 supergravity is also presented, in a form that utilizes a pure function with a very simple symbol.
Date: February 15, 2012
Creator: Boucher-Veronneau, C. & Dixon, L. J.
Object Type: Article
System: The UNT Digital Library
20% Wind by 2030: Overcoming the Challenges in West Virginia (open access)

20% Wind by 2030: Overcoming the Challenges in West Virginia

Final Report for '20% Wind by 2030: Overcoming the Challenges in West Virginia'. The objective of this project was to examine the obstacles and constraints to the development of wind energy in West Virginia as well as the obstacles and constraints to the achievement of the national goal of 20% wind by 2030. For the portion contracted with WVU, there were four tasks in this examination of obstacles and constraints. Task 1 involved the establishment of a Wind Resource Council. Task 2 involved conducting limited research activities. These activities involved an ongoing review of wind energy documents including documents regarding the potential for wind farms being located on reclaimed surface mining sites as well as other brownfield sites. The Principal Investigator also examined the results of the Marshall University SODAR assessment of the potential for placing wind farms on reclaimed surface mining sites. Task 3 involved the conducting of outreach activities. These activities involved working with the members of the Wind Resource Council, the staff of the Regional Wind Energy Institute, and the staff of Penn Future. This task also involved the examination of the importance of transmission for wind energy development. The Principal Investigator kept informed as to transmission …
Date: February 15, 2012
Creator: Mann, Patrick & Risch, Christine
Object Type: Report
System: The UNT Digital Library
2012 PLASMONICS GORDON RESEARCH CONFERENCE AND GORDON RESEARCH SEMINAR, JUNE 10-15, 2012 (open access)

2012 PLASMONICS GORDON RESEARCH CONFERENCE AND GORDON RESEARCH SEMINAR, JUNE 10-15, 2012

The focus of this meeting is on recent advances in science and engineering of plasmonic optics and its applications in the design of novel devices and components. The impacts of plasmonic phenomena on other disciplines such as chemistry, biology, medicine and engineering will also be discussed.
Date: June 15, 2012
Creator: Engheta, Nader
Object Type: Article
System: The UNT Digital Library
[20th annual Christmas & Kwanzaa concert] captions transcript

[20th annual Christmas & Kwanzaa concert]

Video recording from The Black Academy of Arts and Letters recorded during their 20th annual Christmas and Kwanzaa holiday concert in collaboration with local high school bands and choirs. The footage shows a large band seated in front of a mixed-gender student choir. The concert features students from South Oak Cliff, Lincoln, Carter, and Kimball high schools with the Townview Big D Band.
Date: December 15, 2012
Creator: Waller, Alonzo
Object Type: Video
System: The UNT Digital Library
[20th Annual Christmas/Kwanzaa Concert audio tape] transcript

[20th Annual Christmas/Kwanzaa Concert audio tape]

Audio cassette from The Black Academy of Arts and Letters recorded during the 20th Annual Christmas/Kwanzaa Concert held at the Naomi Bruton Theatre on December 15th, 2012. The audio tape includes one track of audio of the performance featuring students from DISD high schools and the Townview Big D Band.
Date: December 15, 2012
Creator: unknown
Object Type: Sound
System: The UNT Digital Library
[20th annual Christmas & Kwanzaa concert, camera 2] captions transcript

[20th annual Christmas & Kwanzaa concert, camera 2]

Video recording from The Black Academy of Arts and Letters recorded during their 20th annual Christmas and Kwanzaa holiday concert in collaboration with local high school bands and choirs. The footage shows a large band seated in front of a mixed-gender student choir. The concert features students from South Oak Cliff, Lincoln, Carter, and Kimball high schools with the Townview Big D Band. The tape shows camera angle 2 which focuses on close-ups of the performers and speakers.
Date: December 15, 2012
Creator: Waller, Alonzo
Object Type: Video
System: The UNT Digital Library
[20th annual Christmas & Kwanzaa concert, camera 3] captions transcript

[20th annual Christmas & Kwanzaa concert, camera 3]

Video recording from The Black Academy of Arts and Letters recorded during their 20th annual Christmas and Kwanzaa holiday concert in collaboration with local high school bands and choirs. The footage shows a large band seated in front of a mixed-gender student choir. The concert features students from South Oak Cliff, Lincoln, Carter, and Kimball high schools with the Townview Big D Band. The tape switches to unrelated content at the 25:20 minute mark.
Date: December 15, 2012
Creator: Waller, Alonzo
Object Type: Video
System: The UNT Digital Library
[20th annual Christmas & Kwanzaa concert, edited version] captions transcript

[20th annual Christmas & Kwanzaa concert, edited version]

Video recording from The Black Academy of Arts and Letters recorded during their 20th annual Christmas and Kwanzaa holiday concert in collaboration with local high school bands and choirs. The footage shows a large band seated in front of a mixed-gender student choir. The concert features students from South Oak Cliff, Lincoln, Carter, and Kimball high schools with the Townview Big D Band. The tape shows an edited version of the concert to fit on one tape.
Date: December 15, 2012
Creator: Waller, Alonzo
Object Type: Video
System: The UNT Digital Library
[20th annual Christmas & Kwanzaa concert, tape 1] captions transcript

[20th annual Christmas & Kwanzaa concert, tape 1]

Video recording from The Black Academy of Arts and Letters recorded during their 20th annual Christmas and Kwanzaa holiday concert in collaboration with local high school bands and choirs. The footage shows a large band seated in front of a mixed-gender student choir. The concert features students from South Oak Cliff, Lincoln, Carter, and Kimball high schools with the Townview Big D Band. The tape shows the opening along with individual acknowledgments.
Date: December 15, 2012
Creator: Waller, Alonzo
Object Type: Video
System: The UNT Digital Library
[20th annual Christmas & Kwanzaa concert, tape 2] captions transcript

[20th annual Christmas & Kwanzaa concert, tape 2]

Video recording from The Black Academy of Arts and Letters recorded during their 20th annual Christmas and Kwanzaa holiday concert in collaboration with local high school bands and choirs. The footage shows a large band seated in front of a mixed-gender student choir. The concert features students from South Oak Cliff, Lincoln, Carter, and Kimball high schools with the Townview Big D Band.
Date: December 15, 2012
Creator: Waller, Alonzo
Object Type: Video
System: The UNT Digital Library
[29th annual "Black Music and the Civil Rights Movement Concert" televised broadcast] captions transcript

[29th annual "Black Music and the Civil Rights Movement Concert" televised broadcast]

Video recording from The Black Academy of Arts and Letters of the CBS 11 televised broadcast for the 29th annual "Black Music and the Civil Rights Movement Concert" held on January 15th. The footage shows the audience entering the Myerson and the performance edited into seamless clips from various moving camera angles showing featured performers such as Cece Winans.
Date: January 15, 2012
Creator: CBS 11/ TXA 21
Object Type: Video
System: The UNT Digital Library
ADA Paratransit Services: Demand Has Increased, but Little is Known about Compliance (open access)

ADA Paratransit Services: Demand Has Increased, but Little is Known about Compliance

A letter report issued by the Government Accountability Office with an abstract that begins "Little is known about the extent of transit agencies' compliance with the Americans with Disabilities Act (ADA) paratransit service requirements. FTA does receive some assurance that agencies are complying with federal statutes and regulations, including ADA paratransit requirements, because transit agencies that receive FTA funding are required to self-certify and assure that they are complying with the Department of Transportation's ADA regulations. Additionally, FTA conducts specialized ADA paratransit compliance reviews that examine multiple aspects of an agency's paratransit services; however, few transit agencies are selected for review each year. FTA generally relies on complaints, media reports, experience with an agency, and other information to select agencies for review, but does not have documented criteria for selecting agencies. This informal selection process does not align with federal guidance on internal controls related to communication, documentation, and monitoring. Lastly, according to FTA officials, all finalized ADA paratransit compliance review reports are to be available on FTA's website, but GAO identified nine final review reports--conducted from 2004 to 2010--that have not been posted to FTA's website."
Date: November 15, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Addressing Control of Hazardous Energy (COHE) Requirements in a Laser Safety Program (open access)

Addressing Control of Hazardous Energy (COHE) Requirements in a Laser Safety Program

OSHA regulation 29CFR1910.147 specifies control of hazardous energy requirements for 'the servicing and maintenance of machines and equipment in which the unexpected energization or start up of the machines or equipment, or release of stored energy could cause injury to employees.' Class 3B and Class 4 laser beams must be considered hazardous energy sources because of the potential for serious eye injury; careful consideration is therefore needed to safely de-energize these lasers. This paper discusses and evaluates control of hazardous energy principles in this OSHA regulation, in ANSI Z136.1 ''Safe Use of Lasers,'' and in ANSI Z244.1 ''Control of Hazardous Energy, Lockout/Tagout and Alternative Methods.'' Recommendations are made for updating and improving CoHE (control of hazardous energy) requirements in these standards for their applicability to safe laser operations.
Date: February 15, 2012
Creator: Woods, Michael
Object Type: Article
System: The UNT Digital Library
Advanced, Integrated Control for Building Operations to Achieve 40% Energy Saving (open access)

Advanced, Integrated Control for Building Operations to Achieve 40% Energy Saving

we developed and demonstrated a software based integrated advanced building control platform called Smart Energy Box (SEB), which can coordinate building subsystem controls, integrate variety of energy optimization algorithms and provide proactive and collaborative energy management and control for building operations using weather and occupancy information. The integrated control system is a low cost solution and also features: Scalable component based architecture allows to build a solution for different building control system configurations with needed components; Open Architecture with a central data repository for data exchange among runtime components; Extendible to accommodate variety of communication protocols. Optimal building control for central loads, distributed loads and onsite energy resource Uses web server as a loosely coupled way to engage both building operators and building occupants in collaboration for energy conservation. Based on the open platform of SEB, we have investigated and evaluated a variety of operation and energy saving control strategies on Carnegie Mellon University Intelligent Work place which is equipped with alternative cooling/heating/ventilation/lighting methods, including radiant mullions, radiant cooling/heating ceiling panels, cool waves, dedicated ventilation unit, motorized window and blinds, and external louvers. Based on the validation results of these control strategies, they were integrated in SEB in a collaborative …
Date: October 15, 2012
Creator: Dr. Zhen Song, Prof. Vivian Loftness, Dr. Kun Ji, Dr. Sam Zheng, Mr. Bertrand Lasternas, Ms. Flore Marion, Mr. Yuebin Yu
Object Type: Report
System: The UNT Digital Library
Advances in Superresolution Optical Fluctuation Imaging (SOFI) (open access)

Advances in Superresolution Optical Fluctuation Imaging (SOFI)

None
Date: May 15, 2012
Creator: Dertinger, T.; Pallaoro, A.; Braun, G.; Ly, S.; Laurence, T. A. & Weiss, S.
Object Type: Article
System: The UNT Digital Library
AHTR Mechanical, Structural, and Neutronic Preconceptual Design (open access)

AHTR Mechanical, Structural, and Neutronic Preconceptual Design

This report provides an overview of the mechanical, structural, and neutronic aspects of the Advanced High Temperature Reactor (AHTR) design concept. The AHTR is a design concept for a large output Fluoride salt cooled High-temperature Reactor (FHR) that is being developed to enable evaluation of the technology hurdles remaining to be overcome prior to FHRs becoming an option for commercial reactor deployment. This report documents the incremental AHTR design maturation performed over the past year and is focused on advancing the design concept to a level of a functional, self-consistent system. The reactor concept development remains at a preconceptual level of maturity. While the overall appearance of an AHTR design is anticipated to be similar to the current concept, optimized dimensions will differ from those presented here. The AHTR employs plate type coated particle fuel assemblies with rapid, off-line refueling. Neutronic analysis of the core has confirmed the viability of a 6-month two-batch cycle with 9 wt. % enriched uranium fuel. Refueling is intended to be performed automatically under visual guidance using dedicated robotic manipulators. The report includes a preconceptual design of the manipulators, the fuel transfer system, and the used fuel storage system. The present design intent is for …
Date: September 15, 2012
Creator: Varma, V. K.; Holcomb, D. E.; Peretz, F. J.; Bradley, E. C.; Ilas, D.; Qualls, A. L. et al.
Object Type: Report
System: The UNT Digital Library
AHTR Refueling Systems and Process Description (open access)

AHTR Refueling Systems and Process Description

The Advanced High-Temperature Reactor (AHTR) is a design concept for a central station-type [1500 MW(e)] Fluoride salt–cooled High-temperature Reactor (FHR) that is currently undergoing development by Oak Ridge National Laboratory for the US. Department of Energy, Office of Nuclear Energy’s Advanced Reactor Concepts program. FHRs, by definition, feature low-pressure liquid fluoride salt cooling, coated-particle fuel, a high-temperature power cycle, and fully passive decay heat rejection. The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. The AHTR is approaching a preconceptual level of maturity. An initial integrated layout of its major systems, structures, and components (SSCs), and an initial, high-level sequence of operations necessary for constructing and operating the plant is nearing completion. An overview of the current status of the AHTR concept has been recently published [1], and a report providing a more detailed overview of the AHTR structures and mechanical systems is currently in preparation. This report documents the refueling components and processes envisioned at this early development phase. The report is limited to the refueling aspects of the AHTR and does not include overall reactor or power plant design information. The …
Date: July 15, 2012
Creator: Varma, V. K.; Holcomb, D. E.; Bradley, E. C.; Zaharia, N. M. & Cooper, E. J.
Object Type: Report
System: The UNT Digital Library
AIP Conference Proceedings for the 19th Topical Conference on Radio Frequency Power in Plasmas (open access)

AIP Conference Proceedings for the 19th Topical Conference on Radio Frequency Power in Plasmas

An analytic model for single particle motion in the presence of a wave field and multiple cyclotron harmonics is developed and investigated. The model suggests that even in the absence of Doppler broadening, cyclotron harmonic layers have finite spatial extent. This allows for particles to interact with more than one harmonic layer simultaneously, provided the layers are tightly packed. The latter phenomenon is investigated in the context of the model using symplectic mapping techniques. Then the model behavior is compared with numerical simulations of neutral beam particle trajectories in NSTX using the full-orbit code SPIRAL
Date: August 15, 2012
Creator: Burby, J. W.; Kramer, G. J.; Phillips, C. K. & Valeo, E. J.
Object Type: Article
System: The UNT Digital Library
Air Conditioning with Magnetic Refrigeration (open access)

Air Conditioning with Magnetic Refrigeration

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Building Energy Efficiency Through Innovative Thermodevices (BEETIT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses air conditioning with magnetic refrigeration as part of "An Efficient, Green Compact Cooling System Using Magnetic Refrigeration" project.
Date: February 15, 2012
Creator: Astronautics Corporation of America
Object Type: Text
System: The UNT Digital Library
Air Passenger Screening: Transportation Security Administration Could Improve Complaint Processes (open access)

Air Passenger Screening: Transportation Security Administration Could Improve Complaint Processes

A letter report issued by the Government Accountability Office with an abstract that begins "The Transportation Security Administration (TSA) receives thousands of air passenger screening complaints through five mechanisms, but does not have an agencywide policy or consistent processes to guide receipt and use of such information. For example, from October 2009 through June 2012, TSA received more than 39,000 screening complaints through its TSA Contact Center (TCC). However, the data from the five mechanisms do not reflect the full nature and extent of complaints because local TSA staff have discretion in implementing TSA's complaint processes, including how they receive and document complaints. For example, comment cards are used at four of the six airports GAO contacted, but TSA does not have a policy requiring that complaints submitted using the cards be tracked or reported centrally. A consistent policy to guide all TSA efforts to receive and document complaints would improve TSA's oversight of these activities and help ensure consistent implementation. TSA also uses TCC data to inform the public about air passenger screening complaints, monitor operational effectiveness of airport security checkpoints, and make changes as needed. However, TSA does not use data from its other four mechanisms, in part …
Date: November 15, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Alabama Energy and Cost Savings for New Single- and Multifamily Homes: 2009 and 2012 IECC as Compared to the 2006 IECC (open access)

Alabama Energy and Cost Savings for New Single- and Multifamily Homes: 2009 and 2012 IECC as Compared to the 2006 IECC

The 2009 and 2012 International Energy Conservation Codes (IECC) yield positive benefits for Alabama homeowners. Moving to either the 2009 or 2012 IECC from the 2006 IECC is cost effective over a 30-year life cycle. On average, Alabama homeowners will save $2,117 over 30 years under the 2009 IECC, with savings still higher at $6,182 with the 2012 IECC. After accounting for upfront costs and additional costs financed in the mortgage, homeowners should see net positive cash flows (i.e., cumulative savings exceeding cumulative cash outlays) in 2 years for both the 2009 and 2012 IECC. Average annual energy savings are $168 for the 2009 IECC and $462 for the 2012 IECC.
Date: June 15, 2012
Creator: Lucas, Robert G.; Taylor, Zachary T.; Mendon, Vrushali V. & Goel, Supriya
Object Type: Report
System: The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 136, No. 43, Ed. 1 Thursday, March 15, 2012 (open access)

The Albany News (Albany, Tex.), Vol. 136, No. 43, Ed. 1 Thursday, March 15, 2012

Weekly newspaper from Albany, Texas that includes local, state and national news along with advertising.
Date: March 15, 2012
Creator: Lucas, Melinda L.
Object Type: Newspaper
System: The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 137, No. 26, Ed. 1 Thursday, November 15, 2012 (open access)

The Albany News (Albany, Tex.), Vol. 137, No. 26, Ed. 1 Thursday, November 15, 2012

Weekly newspaper from Albany, Texas that includes local, state and national news along with advertising.
Date: November 15, 2012
Creator: Lucas, Melinda L.
Object Type: Newspaper
System: The Portal to Texas History
All-Optical Time-Resolved Measurement of Laser Energy Modulation in a Relativistic Electron Beam (open access)

All-Optical Time-Resolved Measurement of Laser Energy Modulation in a Relativistic Electron Beam

Hamiltonian light-front theory has been proposed as a promising method for solving bound states problems in quantum field theory a long time ago, see, e.g., the review article[1] for its various advantages compared to the traditional instant-form theories. Recently the Basis Light-Front Quantization (BLFQ) approach [2, 3] has been developed as a nonperturbative approach to solve Hamiltonian light-front quantum field theory. Numerical efficiency is a key advantage of this approach. The basic idea of BLFQ is to represent the theory in an optimal basis which respects many symmetries of the theory and thus minimizes the dimensionality of the Hamiltonian for a fixed precision. Specifically, the BLFQ approach employs a plane wave basis in the light-front longitudinal direction and a 2D harmonic oscillator basis in the transverse directions. In previous work [3] this approach has been applied to evaluate the anomalous magnetic moment of electrons which are confined in an external trap with an extrapolation to the zero trap limit. In this work we extend and improve this approach in several aspects including the direct evaluation of a free electron system. This article is organized as follows: In Sec. 2 we discuss the key extensions and improvements made in this work …
Date: February 15, 2012
Creator: Xiang, D.; Colby, E.; Dunning, M.; Gilevich, S.; Hast, C.; Jobe, K. et al.
Object Type: Article
System: The UNT Digital Library