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N >= 4 Supergravity Amplitudes from Gauge Theory at One Loop
We expose simple and practical relations between the integrated four- and five-point one-loop amplitudes of N {ge} 4 supergravity and the corresponding (super-)Yang-Mills amplitudes. The link between the amplitudes is simply understood using the recently uncovered duality between color and kinematics that leads to a double-copy structure for gravity. These examples provide additional direct confirmations of the duality and double-copy properties at loop level for a sample of different theories.
Date:
August 19, 2011
Creator:
Bern, Z.; Boucher-Veronneau, C. & Johansson, H.
Object Type:
Article
System:
The UNT Digital Library
2011 Laser Diagnostics in Combustion Gordon Research Conference, (August 14-19, 2011, Waterville Valley Resort, Waterville Valley, NH)
The vast majority of the world's energy needs are met by combustion of fossil fuels. Optimum utilization of limited resources and control of emissions of pollutants and greenhouse gases demand sustained improvement of combustion technology. This task can be satisfied only by detailed knowledge of the underlying physical and chemical processes. Non-intrusive laser diagnostics continuously contribute to our growing understanding of these complex and coupled multi-scale processes. The GRC on Laser Diagnostics in Combustion focuses on the most recent scientific advances and brings together scientists and engineers working at the leading edge of combustion research. Major tasks of the community are developing and applying methods for precise and accurate measurements of fluid motion and temperatures; chemical compositions; multi-phase phenomena appearing near walls, in spray and sooting combustion; improving sensitivities, precision, spatial resolution and tracking transients in their spatio-temporal development. The properties and behaviour of novel laser sources, detectors, optical systems that lead to new diagnostic capabilities are also part of the conference program.
Date:
August 19, 2011
Creator:
Settersten, Thomas
Object Type:
Article
System:
The UNT Digital Library
2011 Status of the Automatic Alignment System for the National Ignition Facility
Automated alignment for the National Ignition Facility (NIF) is accomplished using a large-scale parallel control system that directs 192 laser beams along the 300-m optical path. The beams are then focused down to a 50-micron spot in the middle of the target chamber. The entire process is completed in less than 50 minutes. The alignment system commands 9,000 stepping motors for highly accurate adjustment of mirrors and other optics. 41 control loops per beamline perform parallel processing services running on a LINUX cluster to analyze high-resolution images of the beams and their references. This paper describes the status the NIF automatic alignment system and the challenges encountered as NIF development has transitioned from building the laser, to becoming a research project supporting a 24 hour, 7 day laser facility. NIF is now a continuously operated system where performance monitoring is increasingly more critical for operation, maintenance, and commissioning tasks. Equipment wear and the effects of high energy neutrons from fusion experiments are issues which alter alignment efficiency and accuracy. New sensors needing automatic alignment assistance are common. System modifications to improve efficiency and accuracy are prevalent. Handling these evolving alignment and maintenance needs while minimizing the impact on NIF experiment …
Date:
July 19, 2011
Creator:
Wilhelmsen, K.; Awwal, A.; Burkhart, S.; McGuigan, D.; Kamm, V. M.; Leach, R. et al.
Object Type:
Article
System:
The UNT Digital Library
82nd Texas Legislature, Regular Session, House Bill 15, Chapter 73
Bill introduced by the Texas House of Representatives relating to informed consent to an abortion.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Bill 46, Chapter 74
Bill introduced by the Texas House of Representatives relating to compensatory time off for certain employees of the Parks and Wildlife Department.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Bill 906, Chapter 75
Bill introduced by the Texas House of Representatives relating to appointments made in and the appeal of certain suits affecting the parent-child relationship.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Bill 984, Chapter 76
Bill introduced by the Texas House of Representatives relating to agreements between neighboring municipalities regarding jurisdiction of cases in municipal courts.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Bill 1032, Chapter 77
Bill introduced by the Texas House of Representatives relating to a rescission period for annuity contracts.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Bill 1346, Chapter 78
Bill introduced by the Texas House of Representatives relating to the consistent use of the term "game warden" throughout the Parks and Wildlife Code.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Bill 1625, Chapter 79
Bill introduced by the Texas House of Representatives relating to the renewal of electrical sign apprentice licenses.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Bill 2561, Chapter 80
Bill introduced by the Texas House of Representatives relating to the definition of "school year" for purposes of the Teacher Retirement System of Texas.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Concurrent Resolution 45
Concurrent resolution introduced by the Texas House of Representatives and Senate designating Giddings as the official Depot Capital of Texas.
Date:
May 19, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 18, Chapter 81
Bill introduced by the Texas Senate relating to the use of eminent domain authority.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 265, Chapter 82
Bill introduced by the Texas Senate relating to training for employees and operators of certain child-care facilities.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 378, Chapter 83
Bill introduced by the Texas Senate relating to the date by which a pest management zone or cotton grower may request an extension of the cotton stalk destruction deadline.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 1195, Chapter 89
Bill introduced by the Texas Senate relating to postponement of jury service in certain counties.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 1272, Chapter 90
Bill introduced by the Texas Senate relating to tuition rates and formula funding for certain nonresident students enrolled at Texas A&M University--Texarkana.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 1303, Chapter 91
Bill introduced by the Texas Senate relating to nonsubstantive additions to and corrections in enacted codes, to the nonsubstantive codification or disposition of various laws omitted from enacted codes, and to conforming codifications enacted by the 81st Legislature to other Acts of that legislature.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 1490, Chapter 92
Bill introduced by the Texas Senate relating to the recording of proceedings and the issuance of a warrant to take physical custody of a child in certain suits affecting the parent-child relationship; creating an offense.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 1568, Chapter 93
Bill introduced by the Texas Senate relating to shareholder standing after a merger.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 1716, Chapter 94
Bill introduced by the Texas Senate relating to voidability of contracts procured through and liability arising from conduct constituting barratry; providing a civil penalty.
Date:
May 19, 2011
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
Accessing the Distribution of Linearly Polarized Gluons in Unpolarized Hadrons
Gluons inside unpolarized hadrons can be linearly polarized provided they have a nonzero transverse momentum. The simplest and theoretically safest way to probe this distribution of linearly polarized gluons is through cos2{phi} asymmetries in heavy quark pair or dijet production in electron-hadron collisions. Future Electron-Ion Collider (EIC) or Large Hadron electron Collider (LHeC) experiments are ideally suited for this purpose. Here we estimate the maximum asymmetries for EIC kinematics.
Date:
August 19, 2011
Creator:
Boer, Daniel; Brodsky, Stanley J.; Mulders, Piet J. & Pisano, Cristian
Object Type:
Article
System:
The UNT Digital Library
Advanced Energy and Water Recovery Technology from Low Grade Waste Heat
The project has developed a nanoporous membrane based water vapor separation technology that can be used for recovering energy and water from low-temperature industrial waste gas streams with high moisture contents. This kind of exhaust stream is widely present in many industrial processes including the forest products and paper industry, food industry, chemical industry, cement industry, metal industry, and petroleum industry. The technology can recover not only the sensible heat but also high-purity water along with its considerable latent heat. Waste heats from such streams are considered very difficult to recover by conventional technology because of poor heat transfer performance of heat-exchanger type equipment at low temperature and moisture-related corrosion issues. During the one-year Concept Definition stage of the project, the goal was to prove the concept and technology in the laboratory and identify any issues that need to be addressed in future development of this technology. In this project, computational modeling and simulation have been conducted to investigate the performance of a nanoporous material based technology, transport membrane condenser (TMC), for waste heat and water recovery from low grade industrial flue gases. A series of theoretical and computational analyses have provided insight and support in advanced TMC design and …
Date:
December 19, 2011
Creator:
Wang, Dexin
Object Type:
Report
System:
The UNT Digital Library
Advanced Energy and Water Recovery Technology from Low Grade Waste Heat
The project has developed a nanoporous membrane based water vapor separation technology that can be used for recovering energy and water from low-temperature industrial waste gas streams with high moisture contents. This kind of exhaust stream is widely present in many industrial processes including the forest products and paper industry, food industry, chemical industry, cement industry, metal industry, and petroleum industry. The technology can recover not only the sensible heat but also high-purity water along with its considerable latent heat. Waste heats from such streams are considered very difficult to recover by conventional technology because of poor heat transfer performance of heat-exchanger type equipment at low temperature and moisture-related corrosion issues. During the one-year Concept Definition stage of the project, the goal was to prove the concept and technology in the laboratory and identify any issues that need to be addressed in future development of this technology. In this project, computational modeling and simulation have been conducted to investigate the performance of a nanoporous material based technology, transport membrane condenser (TMC), for waste heat and water recovery from low grade industrial flue gases. A series of theoretical and computational analyses have provided insight and support in advanced TMC design and …
Date:
December 19, 2011
Creator:
Wang, Dexin
Object Type:
Report
System:
The UNT Digital Library