Evaluating Unsupervised Ensembles when applied to Word Sense Induction (open access)

Evaluating Unsupervised Ensembles when applied to Word Sense Induction

None
Date: February 15, 2012
Creator: Stevens, K D
Object Type: Article
System: The UNT Digital Library
Membrane Dehumidifier (open access)

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
Bounds and self-consistent estimates for elastic constants of polycrystals of hcp solid He{sup 4} (open access)

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
Energy Efficient Building Ventilation Systems (open access)

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
Elastic Metal Alloy Refrigerants (open access)

Elastic Metal Alloy Refrigerants

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 efficient cooling systems as part of the "Thermoelastic Cooling" project.
Date: February 15, 2012
Creator: University of Maryland
Object Type: Text
System: The UNT Digital Library
Compact Solid State Cooling Systems (open access)

Compact Solid State Cooling 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 eliminates polluting refrigerants as part of the "Compact MEMS Electrocaloric Module" project.
Date: February 15, 2012
Creator: University of California, Los Angeles
Object Type: Text
System: The UNT Digital Library
Liquid Desiccant in Air Conditioners (open access)

Liquid Desiccant in Air Conditioners

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 would reduce system corrosion and be more efficient as part of the "Nano-Engineered Porous Hollow Fiber Membrane-Based Air Conditioning System" project.
Date: February 15, 2012
Creator: United Technologies Research Center
Object Type: Text
System: The UNT Digital Library
Helium-Based Soundwave Chiller (open access)

Helium-Based Soundwave Chiller

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 thermoacoustic freezers as part of the "Trillium: A Helium-Based Sonic Chiller- Tons of Freezing with 0 GWP Refrigerants" project.
Date: February 15, 2012
Creator: Pennsylvania State University
Object Type: Text
System: The UNT Digital Library
Summary Report on CO{sub 2} Geologic Sequestration & Water Resources Workshop (open access)

Summary Report on CO{sub 2} Geologic Sequestration & Water Resources Workshop

The United States Environmental Protection Agency (EPA) and Lawrence Berkeley National Laboratory (LBNL) jointly hosted a workshop on “CO{sub 2} Geologic Sequestration and Water Resources” in Berkeley, June 1–2, 2011. The focus of the workshop was to evaluate R&D needs related to geological storage of CO{sub 2} and potential impacts on water resources. The objectives were to assess the current status of R&D, to identify key knowledge gaps, and to define specific research areas with relevance to EPA’s mission. About 70 experts from EPA, the DOE National Laboratories, industry, and academia came to Berkeley for two days of intensive discussions. Participants were split into four breakout session groups organized around the following themes: Water Quality and Impact Assessment/Risk Prediction; Modeling and Mapping of Area of Potential Impact; Monitoring and Mitigation; Wells as Leakage Pathways. In each breakout group, participants identified and addressed several key science issues. All groups developed lists of specific research needs; some groups prioritized them, others developed short-term vs. long-term recommendations for research directions. Several crosscutting issues came up. Most participants agreed that the risk of CO{sub 2} leakage from sequestration sites that are properly selected and monitored is expected to be low. However, it also became …
Date: February 15, 2012
Creator: Varadharajan, C.; Birkholzer, J.; Kraemer, S.; Porse, S.; Carroll, S.; Wilkin, R. et al.
Object Type: Report
System: The UNT Digital Library
Carbon Dioxide and Ionic Liquid Refrigerants (open access)

Carbon Dioxide and Ionic Liquid Refrigerants

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 new refrigerants as part of the "Compact, Efficient Air Conditioning with Ionic Liquid-Based Refrigerants" project.
Date: February 15, 2012
Creator: University of Notre Dame
Object Type: Text
System: The UNT Digital Library
High-Efficiency Stirling Air Conditioning (open access)

High-Efficiency Stirling Air Conditioning

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 would use no polluting refrigerants as part of the "Stirling Air Conditioner for Compact Cooling" project.
Date: February 15, 2012
Creator: Infinia Corporation
Object Type: Text
System: The UNT Digital Library
High Efficiency Adsorption Chillers (open access)

High Efficiency Adsorption Chillers

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 would be smaller, more efficient, and cheaper as part of the "High Efficiency Adsorption Cooling Using Metal Organic Heat Carriers" project.
Date: February 15, 2012
Creator: Pacific Northwest National Laboratory (U.S.)
Object Type: Text
System: The UNT Digital Library
Statistical line-by-line model for atomic spectra in intermediate coupling (open access)

Statistical line-by-line model for atomic spectra in intermediate coupling

None
Date: February 15, 2012
Creator: Iglesias, C
Object Type: Article
System: The UNT Digital Library
Innovative Miniaturized Heat Pumps for Buildings (open access)

Innovative Miniaturized Heat Pumps for Buildings

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 a more efficient heat pump as part of the "Modular Thermal Hub for Building Heating, Cooling and Water Heating" project.
Date: February 15, 2012
Creator: Georgia Institute of Technology
Object Type: Text
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
Membrane-Based Absorption Refrigeration Systems (open access)

Membrane-Based Absorption Refrigeration 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 a heat-powered refrigeration system as part of the "Nanoengineered Membrane-Based Absorption Cooling for Buildings Using Unconcentrated Solar & Waste Heat" project.
Date: February 15, 2012
Creator: University of Florida
Object Type: Text
System: The UNT Digital Library
Measurement of Moisture Outgassing of the Plastic-Bonded TATB Explosive LX-17 (open access)

Measurement of Moisture Outgassing of the Plastic-Bonded TATB Explosive LX-17

None
Date: February 15, 2012
Creator: Small, W; Glascoe, E A & Overturf, G E
Object Type: Article
System: The UNT Digital Library
From Nucleons To Nuclei To Fusion Reactions (open access)

From Nucleons To Nuclei To Fusion Reactions

Nuclei are prototypes of many-body open quantum systems. Complex aggregates of protons and neutrons that interact through forces arising from quantum chromo-dynamics, nuclei exhibit both bound and unbound states, which can be strongly coupled. In this respect, one of the major challenges for computational nuclear physics, is to provide a unified description of structural and reaction properties of nuclei that is based on the fundamental underlying physics: the constituent nucleons and the realistic interactions among them. This requires a combination of innovative theoretical approaches and high-performance computing. In this contribution, we present one of such promising techniques, the ab initio no-core shell model/resonating-group method, and discuss applications to light nuclei scattering and fusion reactions that power stars and Earth-base fusion facilities.
Date: February 15, 2012
Creator: Quaglioni, S; Navratil, P; Roth, R & Horiuchi, W
Object Type: Article
System: The UNT Digital Library
Real-structure effects: Band gaps of Mg_xZn_{1-x}O, Cd_xZn_{1-x}O, and n-type ZnO from ab-initio calculations (open access)

Real-structure effects: Band gaps of Mg_xZn_{1-x}O, Cd_xZn_{1-x}O, and n-type ZnO from ab-initio calculations

Many-body perturbation theory is applied to compute the quasiparticle electronic structures and the optical-absorption spectra (including excitonic effects) for several transparent conducting oxides. We discuss HSE+G{sub 0}W{sub 0} results for band structures, fundamental band gaps, and effective electron masses of MgO, ZnO, CdO, SnO{sub 2}, SnO, In{sub 2}O{sub 3}, and SiO{sub 2}. The Bethe-Salpeter equation is solved to account for excitonic effects in the calculation of the frequency-dependent absorption coefficients. We show that the HSE+G{sub 0}W{sub 0} approach and the solution of the Bethe-Salpeter equation are very well-suited to describe the electronic structure and the optical properties of various transparent conducting oxides in good agreement with experiment.
Date: February 15, 2012
Creator: Schleife, A & Bechstedt, F
Object Type: Article
System: The UNT Digital Library
FRW Solutions and Holography from Uplifted AdS/CFT (open access)

FRW Solutions and Holography from Uplifted AdS/CFT

Starting from concrete AdS/CFT dual pairs, one can introduce ingredients which produce cosmological solutions, including metastable de Sitter and its decay to non-accelerating FRW. We present simple FRW solutions sourced by magnetic flavor branes and analyze correlation functions and particle and brane dynamics. To obtain a holographic description, we exhibit a time-dependent warped metric on the solution and interpret the resulting redshifted region as a Lorentzian low energy effective field theory in one fewer dimension. At finite times, this theory has a finite cutoff, a propagating lower dimensional graviton and a finite covariant entropy bound, but at late times the lower dimensional Planck mass and entropy go off to infinity in a way that is dominated by contributions from the low energy effective theory. This opens up the possibility of a precise dual at late times. We reproduce the time-dependent growth of the number of degrees of freedom in the system via a count of available microscopic states in the corresponding magnetic brane construction.
Date: February 15, 2012
Creator: Dong, Xi; Horn, Bart; /Stanford U., ITP /Stanford U., Phys. Dept. /SLAC; Matsuura, Shunji; /Santa Barbara, KITP /Stanford U., ITP /Stanford U., Phys. Dept. /SLAC; Silverstein, Eva et al.
Object Type: Report
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
New Sources of Gravitational Waves During Inflation (open access)

New Sources of Gravitational Waves During Inflation

We point out that detectable inflationary tensor modes can be generated by particle or string sources produced during inflation, consistently with the requirements for inflation and constraints from scalar fluctuations. We show via examples that this effect can dominate over the contribution from quantum fluctuations of the metric, occurring even when the inflationary potential energy is too low to produce a comparable signal. Thus a detection of tensor modes from inflation does not automatically constitute a determination of the inflationary Hubble scale.
Date: February 15, 2012
Creator: Senatore, Leonardo; Silverstein, Eva; /Stanford U., Phys. Dept. /SLAC; Zaldarriaga, Matias & /Princeton, Inst. Advanced Study
Object Type: Report
System: The UNT Digital Library
RADIUM AND THORIUM SORPTION BY MONOSODIUM TITANATE (MST) AND MODIFIED MST (mMST) (open access)

RADIUM AND THORIUM SORPTION BY MONOSODIUM TITANATE (MST) AND MODIFIED MST (mMST)

A series of tests were planned to examine the removal of Ra and Th by monosodium titanate (MST) and modified monosodium titanate (mMST). Simulated waste solutions were prepared containing Ra and Th, along with Sr, Np, Pu, and U. Following simulant preparation the simulants were filtered through 0.45-m filters. Analysis of the simulants indicated no Th in the filtered solution. This is due to the very low solubility of Th in alkaline solutions. Based on the reported detection limits for {sup 228}Th by gamma analyses, the solubility of Th in the simulant solutions is < 3.0E-10 g/L or < 1.3E-12 M. Therefore, data could not be obtained regarding the removal of Th by MST and mMST; however, testing proceeded to examine the removal of Ra. Sorption testing indicated that Ra, like Sr, is very rapidly removed from solution by both MST and mMST. The Ra concentration in solution fell below the method detection limit (MDL) within 30 minutes of contact with MST, and within 2 hours of contact with mMST, when tested at 25 C using a 5.6 M Na simulant. Additional testing examined the effects of ionic strength and temperature on the MST and mMST performance. Results from these …
Date: February 15, 2012
Creator: Taylor-Pashow, K. & Hobbs, D.
Object Type: Report
System: The UNT Digital Library
Electroweak Baryogenesis and Colored Scalars (open access)

Electroweak Baryogenesis and Colored Scalars

We consider the 2-loop finite temperature effective potential for a Standard Model-like Higgs boson, allowing Higgs boson couplings to additional scalars. If the scalars transform under color, they contribute 2-loop diagrams to the effective potential that include gluons. These 2-loop effects are perhaps stronger than previously appreciated. For a Higgs boson mass of 115 GeV, they can increase the strength of the phase transition by as much as a factor of 3.5. It is this effect that is responsible for the survival of the tenuous electroweak baryogenesis window of the Minimal Supersymmetric Standard Model. We further illuminate the importance of these 2-loop diagrams by contrasting models with colored scalars to models with singlet scalars. We conclude that baryogenesis favors models with light colored scalars. This motivates searches for pair-produced di-jet resonances or jet(s) + = E{sub T}.
Date: February 15, 2012
Creator: Cohen, Timothy; /SLAC /Michigan U., MCTP; Pierce, Aaron & /Michigan U., MCTP
Object Type: Article
System: The UNT Digital Library