Greenidge Multi-Pollutant Control Project (Part 2) (open access)

Greenidge Multi-Pollutant Control Project (Part 2)

The digital full text of this report is divided into two parts. This part of the report contains five and a half of the twelve appendices of the report.
Date: October 18, 2008
Creator: 960446, See OSTI ID
Object Type: Report
System: The UNT Digital Library
Greenidge Multi-Pollutant Control Project (Part 3) (open access)

Greenidge Multi-Pollutant Control Project (Part 3)

None
Date: October 18, 2008
Creator: 960446, See OSTI ID Number
Object Type: Report
System: The UNT Digital Library
IBS and Expected Luminosity Performance For RHIC Beams At Top Energy With 56 MHz SRF Cavity (open access)

IBS and Expected Luminosity Performance For RHIC Beams At Top Energy With 56 MHz SRF Cavity

N/A
Date: October 1, 2008
Creator: A., Fedotov
Object Type: Report
System: The UNT Digital Library
RHIC Performance with 56 MHz RF and Gold Ion Beams Pre-cooled at Lower Energy (open access)

RHIC Performance with 56 MHz RF and Gold Ion Beams Pre-cooled at Lower Energy

N/A
Date: October 1, 2008
Creator: A., Fedotov
Object Type: Report
System: The UNT Digital Library
Search for High-Mass \boldmath$e^+e^-$ Resonances in \boldmath$p\bar{p}$ Collisions at \boldmath$\sqrt{s}=$1.96 TeV (open access)

Search for High-Mass \boldmath$e^+e^-$ Resonances in \boldmath$p\bar{p}$ Collisions at \boldmath$\sqrt{s}=$1.96 TeV

A search for high-mass resonances in the e{sup +}e{sup -} final state is presented based on {radical}s =1.96 TeV p{bar p} collision data from the CDF II detector at the Fermilab Tevatron from an integrated luminosity of 2.5 fb{sup -1}. The largest excess over the standard model prediction is at an e{sup +}e{sup -} invariant mass of 240 GeV/c{sup 2}. The probability of observing such an excess arising from fluctuations in the standard model anywhere in the mass range of 150-1,000 GeV/c{sup 2} is 0.6% (equivalent to 2.5 {sigma}). We set Bayesian upper limits on {sigma}(p{bar p} {yields} X) {center_dot} {Beta}(X {yields} e{sup +}e{sup -}) at the 95% credibility level, where X is a spin 1 or spin 2 particle, and we exclude the standard model coupling Z{prime} and the Randall-Sundrum graviton for {kappa}/{bar M}{sub Pl} = 0.1 with masses below 963 and 848 GeV/c{sup 2}, respectively.
Date: October 1, 2008
Creator: Aaltonen, T.; Phys., /Helsinki Inst. of; Adelman, J.; /Chicago U., EFI; Akimoto, T.; U., /Tsukuba et al.
Object Type: Article
System: The UNT Digital Library
Evidence of WW+WZ production with lepton + jets final states in p anti-p collisions at s**(1/2) = 1.96-TeV (open access)

Evidence of WW+WZ production with lepton + jets final states in p anti-p collisions at s**(1/2) = 1.96-TeV

We present the first evidence of WW+WZ production with lepton+jets final states at a hadron collider. The data correspond to 1.07 inverse femtobarns of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider in proton-antiproton collisions at sqrt(s)=1.96 TeV. The observed cross section for WW+WZ production is 20.2 +/- 4.5 pb, consistent with the SM prediction of 16.1 +/- 0.9 pb. The probability for background fluctuations to produce an excess equal to or larger than that observed is estimated to be 5.4e-6, corresponding to a significance of 4.4 standard deviations.
Date: October 1, 2008
Creator: Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T. et al.
Object Type: Article
System: The UNT Digital Library
Kahler Independence of the G2-MSSM (open access)

Kahler Independence of the G2-MSSM

The G{sub 2}-MSSM is a model of particle physics coupled to moduli fields with interesting phenomenology both for colliders and astrophysical experiments. In this paper we consider a more general model--whose moduli Kahler potential is a completely arbitrary G{sub 2}-holonomy Kahler potential and whose matter Kahler potential is also more general. We prove that the vacuum structure and spectrum of BSM particles is largely unchanged in this much more general class of theories. In particular, gaugino masses are still suppressed relative to the gravitino mass and moduli masses. We also consider the effects of higher order corrections to the matter Kahler potential and find a connection between the nature of the LSP and flavor effects.
Date: October 31, 2008
Creator: Acharya, Bobby S. & Bobkov, Konstantin
Object Type: Article
System: The UNT Digital Library
Synthesis and Characterization of Cluster-Derived Supported Bimetallic Catalysts (open access)

Synthesis and Characterization of Cluster-Derived Supported Bimetallic Catalysts

New procedures have been developed for synthesizing di- and tri-metallic cluster complexes. The chemical properties of the new complexes have been investigated, particularly toward the activation of molecular hydrogen. These complexes were then converted into bi- and tri-metallic nanoparticles on silica and alumina supports. These nanoparticles were characterized by electron microscopy and were then tested for their ability to produce catalytic hydrogenation of unsaturated hydrocarbons and for the preferential oxidation of CO in the presence of hydrogen. The bi- and tri-metallic nanoparticles exhibited far superior activity and selectivity as hydrogenation catalysts when compared to the individual metallic components. It was found that the addition of tin greatly improved the selectivity of the catalysts for the hydrogenation of polyolefins. The addition of iron improves the catalysts for the selective oxidation of CO by platinum in the presence of hydrogen. The observations should lead to the development of lower cost routes to molecules that can be used to produce polymers and plastics for use by the general public and for procedures to purify hydrogen for use as an alternative energy in the hydrogen economy of the future.
Date: October 10, 2008
Creator: Adams, Richard D & Amiridis, Michael D
Object Type: Report
System: The UNT Digital Library
Transatlantic Regulatory Cooperation: Background and Analysis (open access)

Transatlantic Regulatory Cooperation: Background and Analysis

This report is intended to serve as an introduction and primer on a complicated, broad, and often highly technical set of issues. It is presented in seven parts: the first section describes the nature and scope of U.S.-EU regulatory barriers; the second section explains the rationale for regulatory cooperation; the third section highlights the differences in U.S.-EU regulatory approaches; the fourth section examines the various forms of regulatory cooperation; the fifth section evaluates the results of past initiatives at regulatory cooperation; the sixth section analyses the creation and operation of the Transatlantic Economic Council; and the last section highlights the role of Congress in transatlantic regulatory cooperation.
Date: October 22, 2008
Creator: Ahearn, Raymond J.
Object Type: Report
System: The UNT Digital Library
Co-Funding for the Conference on Magnetic Resonance in Biological Systems (open access)

Co-Funding for the Conference on Magnetic Resonance in Biological Systems

The XXIst International Conference on Magnetic Resonance in Biological Systems (ICMRBS 2005), '60th anniversary of the discovery of Nuclear Magnetic Resonance,' was held between 16 and 21 January 2005 in Hyderabad, India. The meeting focused on a broad range of magnetic resonance methods as applied to studies of biological processes related to human health. The biennial ICMRBS has become the major venue for discussion of advances in nuclear and electron magnetic resonance (NMR & EMR/EPR) studies of the structure, dynamics, and chemical properties of important classes of biomolecules. Magnetic resonance has become an established tool in structural biology, and its special importance derives from its ability to provide atomic level information. It is becoming increasingly evident that the dynamic features of biomolecules, their intermolecular interactions, and accessible conformations in solution are data of key importance in understanding molecular recognition and function. NMR, which is already contributing to approximately 25% of the new structures being deposited with the Protein Data Bank, is destined to be a major player in the post genomic structure age with its emphasis on structure and function. In-vivo magnetic resonance spectroscopy (MRS) and magnetic resonance imaging (MRI) results shed light on human metabolic processes and on the …
Date: October 1, 2008
Creator: Alan McLaughlin, Ph.D., Director, Division of Applied Science & Technology, NIBIB, NIH
Object Type: Report
System: The UNT Digital Library
Laminin and biomimetic extracellular elasticity enhance functional differentiation in mammary epithelia (open access)

Laminin and biomimetic extracellular elasticity enhance functional differentiation in mammary epithelia

In the mammary gland, epithelial cells are embedded in a 'soft' environment and become functionally differentiated in culture when exposed to a laminin-rich extracellular matrix gel. Here, we define the processes by which mammary epithelial cells integrate biochemical and mechanical extracellular cues to maintain their differentiated phenotype. We used single cells cultured on top of gels in conditions permissive for {beta}-casein expression using atomic force microscopy to measure the elasticity of the cells and their underlying substrata. We found that maintenance of {beta}-casein expression required both laminin signalling and a 'soft' extracellular matrix, as is the case in normal tissues in vivo, and biomimetic intracellular elasticity, as is the case in primary mammary epithelial organoids. Conversely, two hallmarks of breast cancer development, stiffening of the extracellular matrix and loss of laminin signalling, led to the loss of {beta}-casein expression and non-biomimetic intracellular elasticity. Our data indicate that tissue-specific gene expression is controlled by both the tissues unique biochemical milieu and mechanical properties, processes involved in maintenance of tissue integrity and protection against tumorigenesis.
Date: October 20, 2008
Creator: Alcaraz, Jordi; Xu, Ren; Mori, Hidetoshi; Nelson, Celeste M.; Mroue, Rana; Spencer, Virginia A. et al.
Object Type: Article
System: The UNT Digital Library
Does the Endangered Species Act (ESA) Listing Provide More Protection of the Polar Bear? (open access)

Does the Endangered Species Act (ESA) Listing Provide More Protection of the Polar Bear?

None
Date: October 16, 2008
Creator: Alexander, Kristina
Object Type: Report
System: The UNT Digital Library
Gray Wolves Under the Endangered Species Act (ESA): Distinct Population Segments and Experimental Populations (open access)

Gray Wolves Under the Endangered Species Act (ESA): Distinct Population Segments and Experimental Populations

This report looks at the distinct population segments (DPSs) process as it is applied to the gray wolf. It also reviews experimental populations of wolves under the Endangered Species Act (ESA) and their protections.
Date: October 20, 2008
Creator: Alexander, Kristina & Corn, M. Lynne
Object Type: Report
System: The UNT Digital Library
World Biofuels Study (open access)

World Biofuels Study

This report forms part of a project entitled 'World Biofuels Study'. The objective is to study world biofuel markets and to examine the possible contribution that biofuel imports could make to help meet the Renewable Fuel Standard (RFS) of the Energy Independence and Security Act of 2007 (EISA). The study was sponsored by the Biomass Program of the Assistant Secretary for Energy Efficiency and Renewable Energy (EERE), U.S. Department of Energy. It is a collaborative effort among the Office of Policy and International Affairs (PI), Department of Energy and Oak Ridge National Laboratory (ORNL), National Renewable Energy Laboratory (NREL) and Brookhaven National Laboratory (BNL). The project consisted of three main components: (1) Assessment of the resource potential for biofuel feedstocks such as sugarcane, grains, soybean, palm oil and lignocellulosic crops and development of supply curves (ORNL). (2) Assessment of the cost and performance of biofuel production technologies (NREL). (3) Scenario-based analysis of world biofuel markets using the ETP global energy model with data developed in the first parts of the study (BNL). This report covers the modeling and analysis part of the project conducted by BNL in cooperation with PI. The Energy Technology Perspectives (ETP) energy system model was used …
Date: October 1, 2008
Creator: Alfstad,T.
Object Type: Report
System: The UNT Digital Library
Computational investigation of noble gas adsorption and separation by nanoporous materials. (open access)

Computational investigation of noble gas adsorption and separation by nanoporous materials.

Molecular simulations are used to assess the ability of metal-organic framework (MOF) materials to store and separate noble gases. Specifically, grand canonical Monte Carlo simulation techniques are used to predict noble gas adsorption isotherms at room temperature. Experimental trends of noble gas inflation curves of a Zn-based material (IRMOF-1) are matched by the simulation results. The simulations also predict that IRMOF-1 selectively adsorbs Xe atoms in Xe/Kr and Xe/Ar mixtures at total feed gas pressures of 1 bar (14.7 psia) and 10 bar (147 psia). Finally, simulations of a copper-based MOF (Cu-BTC) predict this material's ability to selectively adsorb Xe and Kr atoms when present in trace amounts in atmospheric air samples. These preliminary results suggest that Cu-BTC may be an ideal candidate for the pre-concentration of noble gases from air samples. Additional simulations and experiments are needed to determine the saturation limit of Cu-BTC for xenon, and whether any krypton atoms would remain in the Cu-BTC pores upon saturation.
Date: October 1, 2008
Creator: Allendorf, Mark D. (Sandia National Laboratories, Livermore, CA); Sanders, Joseph C. & Greathouse, Jeffery A.
Object Type: Report
System: The UNT Digital Library
Top Jets at the LHC (open access)

Top Jets at the LHC

We investigatethe reconstruction of high pT hadronically-decaying top quarksat the Large Hadron Collider. One of the main challenges in identifying energetictop quarks is that the decay products become increasingly collimated. This reducesthe efficacy of conventional reconstruction methods that exploit the topology of thetop quark decay chain. We focus on the cases where the decay products of the topquark are reconstructed as a single jet, a"top-jet." The most basic"top-tag" methodbased on jet mass measurement is considered in detail. To analyze the feasibility ofthe top-tagging method, both theoretical and experimental aspects of the large QCDjet background contribution are examined. Based on a factorization approach, wederive a simple analytic approximation for the shape of the QCD jet mass spectrum.We observe very good agreement with the Monte Carlo simulation. We consider high pT tt bar production in the Standard Model as an example, and show that our theoretical QCD jet mass distributions can efficiently characterize the background via sideband analyses. We show that with 25 fb-1 of data, our approach allows us to resolve top-jets with pT _> 1 TeV, from the QCD background, and about 1.5 TeV top-jets with 100 fb-1, without relying on b-tagging. To further improve the significancewe consider jet shapes …
Date: October 6, 2008
Creator: Almeida, L.G.; Lee, S.J.; Perez, G.; Sung, I. & Virzi, J.
Object Type: Article
System: The UNT Digital Library
Materials and Component Development for Advanced Turbine Systems (open access)

Materials and Component Development for Advanced Turbine Systems

In order to meet the 2010-2020 DOE Fossil Energy goals for Advanced Power Systems, future oxy-fuel and hydrogen-fired turbines will need to be operated at higher temperatures for extended periods of time, in environments that contain substantially higher moisture concentrations in comparison to current commercial natural gas-fired turbines. Development of modified or advanced material systems, combined with aerothermal concepts are currently being addressed in order to achieve successful operation of these land-based engines. To support the advanced turbine technology development, the National Energy Technology Laboratory (NETL) has initiated a research program effort in collaboration with the University of Pittsburgh (UPitt), and West Virginia University (WVU), working in conjunction with commercial material and coating suppliers as Howmet International and Coatings for Industry (CFI), and test facilities as Westinghouse Plasma Corporation (WPC) and Praxair, to develop advanced material and aerothermal technologies for use in future oxy-fuel and hydrogen-fired turbine applications. Our program efforts and recent results are presented.
Date: October 1, 2008
Creator: Alvin, M. A.; Pettit, F.; Meier, G.; Yanar, N.; Chyu, M.; Mazzotta, D. et al.
Object Type: Article
System: The UNT Digital Library
Architect of the Capitol: Appointment, Duties, and Current Issues (open access)

Architect of the Capitol: Appointment, Duties, and Current Issues

This report discusses the responsibilities of the AOC, traces the statutory evolution of the office, summarizes the status of current and recent projects, and reviews selected issues before the 110th congress.
Date: October 16, 2008
Creator: Amer, Mildred
Object Type: Report
System: The UNT Digital Library
The First Day of a New Congress: A Guide to Proceedings on the House Floor (open access)

The First Day of a New Congress: A Guide to Proceedings on the House Floor

This report focuses on the floor activities of the House during its first formal session in a new Congress, and serves as a guide for those participating in or watching these proceedings.
Date: October 31, 2008
Creator: Amer, Mildred
Object Type: Report
System: The UNT Digital Library
The First Day of a New Congress: A Guide to Proceedings on the Senate Floor (open access)

The First Day of a New Congress: A Guide to Proceedings on the Senate Floor

The Senate follows a well-established routine on the opening day of a new Congress. This report discusses the various opening-day procedures, including the swearing in of new members, administrative business, and election of the President pro tempore.
Date: October 29, 2008
Creator: Amer, Mildred L.
Object Type: Report
System: The UNT Digital Library
Abiotic Degradation Rates for Carbon Tetrachloride: and Chloroform: Progress in FY 2008 (open access)

Abiotic Degradation Rates for Carbon Tetrachloride: and Chloroform: Progress in FY 2008

This is a letter report summarizing work performed in FY2008 to determine the rates of carbon tetrachloride hydrolysis at temperatures close to actual groundwater temperatures. The report describes the project, the methodology, and the results obtained since the project's inception in FY2006. Measurements of hydrolysis rates in homogeneous solution have been completed for temperaturs of 70 C through 40 C, with additional data available at 30 C and 20 C. These results show no difference between the rates in deionized H2O and in filter-sterilized Hanford-Site groundwater. Moreover, the rates measured are 2-3 times slower than predicted from the open literature. Measurements of rates involving sterile suspensions of Hanford-Site sediment in Hanford-Site groundwater, however, show faster hydrolysis at temperatures below 40 C. Extrapolation of the current data available suggests a six-fold increase in rate would be expected at groundwater temperature of 16 C due to the presence of the sediment. This result translates into a 78-year half-life, rather than the 470-680 year half-life that would be predicted from rate determinations in homogeneous solution. The hydrolysis rate data at 20 C, in contrast to those at higher temperatures, are preliminary and have low statistical power. While significant (p < 0.05) differences between …
Date: October 31, 2008
Creator: Amonette, James E.; Jeffers, Peter M.; Qafoku, Odeta; Russell, Colleen K.; Wietsma, Thomas W. & Truex, Michael J.
Object Type: Report
System: The UNT Digital Library
The complete genome sequence of Staphylothermus marinus reveals differences in sulfur metabolism among heterotrophic Crenarchaeota (open access)

The complete genome sequence of Staphylothermus marinus reveals differences in sulfur metabolism among heterotrophic Crenarchaeota

This report talks about the complete genome sequence of Staphylothermus marinus reveals differences in sulfur metabolism among heterotrophic Crenarchaeota
Date: October 1, 2008
Creator: Anderson, Iain; Dharmarajan, Lakshmi; Rodriguez, Jason; Hooper, Sean; Porat, Iris; Ulrich, Luke E. et al.
Object Type: Article
System: The UNT Digital Library
Lattice Boltzmann simulation of solute transport in heterogeneous porous media with conduits to estimate macroscopic continuous time random walk model parameters (open access)

Lattice Boltzmann simulation of solute transport in heterogeneous porous media with conduits to estimate macroscopic continuous time random walk model parameters

Lattice Boltzmann models simulate solute transport in porous media traversed by conduits. Resulting solute breakthrough curves are fitted with Continuous Time Random Walk models. Porous media are simulated by damping flow inertia and, when the damping is large enough, a Darcy's Law solution instead of the Navier-Stokes solution normally provided by the lattice Boltzmann model is obtained. Anisotropic dispersion is incorporated using a direction-dependent relaxation time. Our particular interest is to simulate transport processes outside the applicability of the standard Advection-Dispersion Equation (ADE) including eddy mixing in conduits. The ADE fails to adequately fit any of these breakthrough curves.
Date: October 20, 2008
Creator: Anwar, S.; Cortis, A. & Sukop, M.
Object Type: Article
System: The UNT Digital Library
Observation and Polarization of B->phiK1+ and phiK*2+ (open access)

Observation and Polarization of B->phiK1+ and phiK*2+

With the full BABAR data sample of 465 million B{bar B} pairs, they observe the decays B{sup {+-}} {yields} {psi}K{sub 1}(1270){sup {+-}} and B{sup {+-}} {yields} {psi}K*{sub 2}(1430){sup {+-}}. They measure the branching fractions (6.1 {+-} 1.6 {+-} 1.1) x 10{sup -6} and (8.4 {+-} 1.9 {+-} 0.9) x 10{sup -6} and the fractions of longitudinal polarization 0.46{sub -0.13-0.07}{sup +0.12+0.03} and 0.80{sub -0.10}{sup +0.09} {+-} 0.03, respectively. They also report on the B{sup {+-}} {yields} {psi}K*{sub 0}(1430){sup {+-}} decay branching fraction of (7.0 {+-} 1.3 {+-} 0.9) x 10{sup -6} and several parameters sensitive to CP violation and interference in the above three decays. Upper limits are placed on the B{sup {+-}} decay rates to final states with {psi} and K{sub 1}(1400){sup {+-}}, K*(1410){sup {+-}}, K{sub 2}(1770){sup {+-}}, or K{sub 2}(1820){sup {+-}}. Understanding the observed polarization pattern requires amplitude contributions from an uncertain source.
Date: October 31, 2008
Creator: Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E. et al.
Object Type: Article
System: The UNT Digital Library