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433 Matching Results
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Membrane Dehumidifier
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 more energy efficient dehumidifying as part of the "High-Efficiency, On-Line Membrane Air Dehumidifier Enabling Sensible Cooling for Warm and Humid Climates" project.
Date:
February 15, 2012
Creator:
ADMA Products
Object Type:
Text
System:
The UNT Digital Library
Comments Concerning “Measurement of the Solubility of the Salt of 2-Mercaptobenzothiazole With Cyclohexylamine and Tert-Butylamine in Various Solvents at Low Temperatures: Models and Thermodynamic Parameters”
This article identifies several errors in the published paper by Wongkaew and coworkers [Fluid Phase Equilibria 434 (2017) 141-151].
Date:
February 15, 2018
Creator:
Acree, William E. (William Eugene)
Object Type:
Article
System:
The UNT Digital Library
Bulk Superconductivity and Disorder in Single Crystals of LaFePO
We have studied the intrinsic normal and superconducting properties of the oxypnictide LaFePO. These samples exhibit bulk superconductivity and the evidence suggests that stoichiometric LaFePO is indeed superconducting, in contrast to other reports. We find that superconductivity is independent of the interplane residual resistivity {rho}{sub 0} and discuss the implications of this on the nature of the superconducting order parameter. Finally we find that, unlike T{sub c}, other properties in single-crystal LaFePO including the resistivity and magnetoresistance, can be very sensitive to disorder.
Date:
February 15, 2010
Creator:
Analytis, James G.; Chu, Jiun-Haw; Erickson, Ann S.; Kucharczyk, Chris; /Stanford U., Appl. Phys. Dept.; Serafin, Alessandro et al.
Object Type:
Article
System:
The UNT Digital Library
The European Union: Current Challenges and Future Prospects
This report provides a brief history of the European Union (EU) and the major challenges currently confronting the EU as an institution. It also discusses the potential implications both for the EU itself and for U.S.-EU relations.
Date:
February 15, 2016
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
Energy Efficient Building Ventilation Systems
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 that uses moisture and heat exchange technology as part of the "Innovative Building-Integrated Enthalpy Recovery" project.
Date:
February 15, 2012
Creator:
Architectural Application
Object Type:
Text
System:
The UNT Digital Library
Western Sahara
This report discusses how Morocco and the independence-seeking Popular Front for the Liberation of Saqiat al Hamra and Rio de Oro (Polisario) have been vying for control of the Western Sahara, a former Spanish territory, since the 1970s. The report discusses recent settlement attempts, as well as how the Western Sahara issue has affected Algerian-Moroccan bilaterial relations, Moroccan relations with the African Union, and regional cooperation on economic and security issues. The report also discusses the United States' involvement in and stance on the issue.
Date:
February 15, 2011
Creator:
Arieff, Alexis
Object Type:
Report
System:
The UNT Digital Library
Gainesville Daily Register (Gainesville, Tex.), Vol. 127, No. 121, Ed. 1 Wednesday, February 15, 2017
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2017
Creator:
Armstrong, Mark J.
Object Type:
Newspaper
System:
The Portal to Texas History
Gainesville Daily Register (Gainesville, Tex.), Vol. 128, No. 116, Ed. 1 Thursday, February 15, 2018
Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2018
Creator:
Armstrong, Mark J.
Object Type:
Newspaper
System:
The Portal to Texas History
U.S. Department of Energy Clean Cities Five-Year Strategic Plan
Clean Cities is a government-industry partnership sponsored by the U.S. Department of Energy's (DOE) Vehicle Technologies Program, which is part of the Office of Energy Efficiency and Renewable Energy. Working with its network of about 100 local coalitions and more than 6,500 stakeholders across the country, Clean Cities delivers on its mission to reduce petroleum consumption in on-road transportation. In its work to reduce petroleum use, Clean Cities focuses on a portfolio of technologies that includes electric drive, propane, natural gas, renewable natural gas/biomethane, ethanol/E85, biodiesel/B20 and higher-level blends, fuel economy, and idle reduction. Over the past 17 years, Clean Cities coalitions have displaced more than 2.4 billion gallons of petroleum; they are on track to displace 2.5 billion gallons of gasoline per year by 2020. This Clean Cities Strategic Plan lays out an aggressive five-year agenda to help DOE Clean Cities and its network of coalitions and stakeholders accelerate the deployment of alternative fuel and advanced technology vehicles, while also expanding the supporting infrastructure to reduce petroleum use. Today, Clean Cities has a far larger opportunity to make an impact than at any time in its history because of its unprecedented $300 million allocation for community-based deployment projects from …
Date:
February 15, 2011
Creator:
Associates, Cambridge Concord
Object Type:
Report
System:
The UNT Digital Library
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
Mount Pleasant Tribune (Mount Pleasant, Tex.), Vol. 143, No. 45, Ed. 1 Wednesday, February 15, 2017
Semiweekly newspaper from Mount Pleasant, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2017
Creator:
Bachman, Marty
Object Type:
Newspaper
System:
The Portal to Texas History
XML Network Description Language (XNDL) for ns-3
None
Date:
February 15, 2013
Creator:
Banks, L. E.; Barnes, P. D.; Jefferson, D. R. & Nikolaev, S.
Object Type:
Report
System:
The UNT Digital Library
A new, faint population of X-ray transients
This article reports on the detection of a remarkable new fast high-energy transient found in the Chandra Deep Field-South, robustly associated with a faint host in the CANDELS survey.
Date:
February 15, 2017
Creator:
Bauer, Franz E.; Treister, Ezequiel; Schawinski, K.; Schulze, S.; Luo, Bin; Alexander, David M. et al.
Object Type:
Article
System:
The UNT Digital Library
Using SciDB to Support Photon Science Data Analysis
Array data analytic systems like SciDB hold great potential to accelerate processing data from SLAC's Linac Coherent Light Source and other experiments. SciDB is unique in its ability to integrate storage and processing of array data efficiently, providing both space-efficient storage and out-of-memory efficient parallel array processing. We describe a recent effort to leverage SciDB to store and process LCLS data. The work includes development of software to import data into SciDB, subsequent benchmarks, and interactive manipulation of data in SciDB.
Date:
February 15, 2012
Creator:
Becla, Jack; Wang, Daniel & lim, Kian-Tat
Object Type:
Report
System:
The UNT Digital Library
NLO Jet Physics with BlackHat
We present several results obtained using the BLACKHAT next-to-leading order QCD program library, in conjunction with SHERPA. In particular, we present distributions for vector boson plus 1,2,3-jet production at the Tevatron and at the asymptotic running energy of the Large Hadron Collider, including new Z + 3-jet distributions. The Z + 2-jet predictions for the second-jet P{sub T} distribution are compared to CDF data. We present the jet-emission probability at NLO in W + 2-jet events at the LHC, where the tagging jets are taken to be the ones furthest apart in pseudorapidity. We analyze further the large left-handed W{sup {+-}} polarization, identified in our previous study, for W bosons produced at high P{sub T} at the LHC.
Date:
February 15, 2010
Creator:
Berger, C. F.; Bern, Z.; Dixon, L. J.; Cordero, F. Febres; Forde, D.; Gleisberg, T. et al.
Object Type:
Article
System:
The UNT Digital Library
Simplifying Multi-loop Integrands of Gauge Theory and Gravity Amplitudes
We use the duality between color and kinematics to simplify the construction of the complete four-loop four-point amplitude of N = 4 super-Yang-Mills theory, including the nonplanar contributions. The duality completely determines the amplitude's integrand in terms of just two planar graphs. The existence of a manifestly dual gauge-theory amplitude trivializes the construction of the corresponding N = 8 supergravity integrand, whose graph numerators are double copies (squares) of the N = 4 super-Yang-Mills numerators. The success of this procedure provides further nontrivial evidence that the duality and double-copy properties hold at loop level. The new form of the four-loop four-point supergravity amplitude makes manifest the same ultraviolet power counting as the corresponding N = 4 super-Yang-Mills amplitude. We determine the amplitude's ultraviolet pole in the critical dimension of D = 11/2, the same dimension as for N = 4 super-Yang-Mills theory. Strikingly, exactly the same combination of vacuum integrals (after simplification) describes the ultraviolet divergence of N = 8 supergravity as the subleading-in-1/N{sub c}{sup 2} single-trace divergence in N = 4 super-Yang-Mills theory.
Date:
February 15, 2012
Creator:
Bern, Z.; Carrasco, J.J.M.; Dixon, L.J.; Johansson, H. & Roiban, R.
Object Type:
Article
System:
The UNT Digital Library
NLO Vector Boson Production With Light Jets
In this contribution we present recent progress in the computation of next-to-leading order (NLO) QCD corrections for the production of an electroweak vector boson in association with jets at hadron colliders. We focus on results obtained using the virtual matrix element library BlackHat in conjunction with SHERPA, focusing on results relevant to understanding the background to top production. The production of a vector boson in association with several jets at the Large Hadron Collider (LHC) is an important background for other Standard Model processes as well as new physics signals. In particular, the production of a W boson in association with many jets is an important background for processes involving one or more top quarks. Precise predictions for the backgrounds are crucial to measurement of top-quark processes. Vector boson production in association with multiple jets is also a very important background for many SUSY searches, as it mimics the signatures of many typical decay chains. Here we will discuss how polarization information can be used as an additional handle to differentiate top pair production from 'prompt' W-boson production. More generally, ratios of observables, for example for events containing a W boson versus those containing a Z boson, are expected to …
Date:
February 15, 2012
Creator:
Bern, Z.; Diana, G.; Dixon, L.J.; Febres Cordero, F.; Forde, D.; Gleisberg, T. et al.
Object Type:
Article
System:
The UNT Digital Library
Bounds and self-consistent estimates for elastic constants of polycrystals of hcp solid He{sup 4}
Recent advances in methods for computing both Hashin-Shtrikman bounds and related selfconsistent (or CPA) estimates of elastic constants for polycrystals composed of randomly oriented crystals can be applied successfully to hexagonal close packed solid He{sup 4}. In particular, since the shear modulus C{sub 44} of hexagonal close-packed solid He is known to undergo large temperature variations when 20 mK {<=}#20; T {<=}#20; 200 mK, bounds and estimates computed with this class of effective medium methods, while using C{sub 44} {r_arrow} 0 as a proxy for melting, are found to be both qualitatively and quantitatively very similar to prior results obtained using Monte Carlo methods. Hashin- Shtrikman bounds provide significantly tighter constraints on the polycrystal behavior than do the traditional Voigt and Reuss bounds.
Date:
February 15, 2012
Creator:
Berryman, J. G.
Object Type:
Article
System:
The UNT Digital Library
The Leonard Graphic (Leonard, Tex.), Vol. 128, No. 7, Ed. 1 Thursday, February 15, 2018
Weekly newspaper from Leonard, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2018
Creator:
Blevins, Betsy
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 95, No. 31, Ed. 1 Sunday, February 15, 2015
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2015
Creator:
Bloom, David
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 97, No. 34, Ed. 1 Wednesday, February 15, 2017
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2017
Creator:
Bloom, David
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 98, No. 33, Ed. 1 Thursday, February 15, 2018
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2018
Creator:
Bloom, David
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 99, No. 34, Ed. 1 Friday, February 15, 2019
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 2019
Creator:
Bloom, David
Object Type:
Newspaper
System:
The Portal to Texas History
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