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Ab-initio description of quasiparticle band structures and optical near-edge absorption of transparent conducting oxides (open access)

Ab-initio description of quasiparticle band structures and optical near-edge absorption of transparent conducting oxides

None
Date: February 14, 2012
Creator: Schleife, A & Bechstedt, F
Object Type: Article
System: The UNT Digital Library
Air-Cooled Stack Freeze Tolerance Freeze Failure Modes and Freeze Tolerance Strategies for GenDriveTM Material Handling Application Systems and Stacks Final Scientific Report (open access)

Air-Cooled Stack Freeze Tolerance Freeze Failure Modes and Freeze Tolerance Strategies for GenDriveTM Material Handling Application Systems and Stacks Final Scientific Report

Air-cooled stack technology offers the potential for a simpler system architecture (versus liquid-cooled) for applications below 4 kilowatts. The combined cooling and cathode air allows for a reduction in part count and hence a lower cost solution. However, efficient heat rejection challenges escalate as power and ambient temperature increase. For applications in ambient temperatures below freezing, the air-cooled approach has additional challenges associated with not overcooling the fuel cell stack. The focus of this project was freeze tolerance while maintaining all other stack and system requirements. Through this project, Plug Power advanced the state of the art in technology for air-cooled PEM fuel cell stacks and related GenDrive material handling application fuel cell systems. This was accomplished through a collaborative work plan to improve freeze tolerance and mitigate freeze-thaw effect failure modes within innovative material handling equipment fuel cell systems designed for use in freezer forklift applications. Freeze tolerance remains an area where additional research and understanding can help fuel cells to become commercially viable. This project evaluated both stack level and system level solutions to improve fuel cell stack freeze tolerance. At this time, the most cost effective solutions are at the system level. The freeze mitigation strategies developed …
Date: February 14, 2012
Creator: Hancock, David, W.
Object Type: Report
System: The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 220, Ed. 1 Tuesday, February 14, 2012 (open access)

The Altus Times (Altus, Okla.), Vol. 112, No. 220, Ed. 1 Tuesday, February 14, 2012

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: February 14, 2012
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Assistance to Firefighters Program: Distribution of Fire Grant Funding (open access)

Assistance to Firefighters Program: Distribution of Fire Grant Funding

This report discusses the firefighting activities that are traditionally the responsibility of states and local communities. The report also talks about the funding for firefighters, which is provided mostly by state and local governments. However, during the 106th Congress, many in the fire community asserted that local fire departments require and deserve greater support from the federal government.
Date: February 14, 2012
Creator: Kruger, Lennard G.
Object Type: Report
System: The UNT Digital Library
Assistance to Firefighters Program: Distribution of Fire Grant Funding (open access)

Assistance to Firefighters Program: Distribution of Fire Grant Funding

Background of the Fire Grants Authorization Act of 2011, including its purpose and uses of funding resulting from the act.
Date: February 14, 2012
Creator: Kruger, Lennard G.
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 92, No. 32, Ed. 1 Tuesday, February 14, 2012 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 92, No. 32, Ed. 1 Tuesday, February 14, 2012

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: February 14, 2012
Creator: Yanelli, Adam
Object Type: Newspaper
System: The Portal to Texas History
Branching Fraction Measurements of the Color-Suppressed Decays B0bar to D(*)0 pi0, D(*)0 eta, D(*)0 omega, and D(*)0 eta_prime and Measurement of the Polarization in the Decay B0bar to D*0 omega (open access)

Branching Fraction Measurements of the Color-Suppressed Decays B0bar to D(*)0 pi0, D(*)0 eta, D(*)0 omega, and D(*)0 eta_prime and Measurement of the Polarization in the Decay B0bar to D*0 omega

We report updated branching fraction measurements of the color-suppressed decays {bar B}{sup 0} {yields} D{sup 0}{pi}{sup 0}, D*{sup 0}{pi}{sup 0}, D{sup 0}{eta}, D*{sup 0}{eta}, D{sup 0}{omega}, D*{sup 0}{omega}, D{sup 0}{eta}', and D*{sup 0}{eta}'. We measure the branching fractions (x10{sup -4}): {Beta}({bar B}{sup 0} {yields} D{sup 0}{pi}{sup 0}) = 2.69 {+-} 0.09 {+-} 0.13, {Beta}({bar B}{sup 0} {yields} D*{sup 0}{pi}{sup 0}) = 3.05 {+-} 0.14 {+-} 0.28, {Beta}({bar B}{sup 0} {yields} D{sup 0}{eta}) = 2.53 {+-} 0.09 {+-} 0.11, {Beta}({bar B}{sup 0} {yields} D*{sup 0}{eta}) = 2.69 {+-} 0.14 {+-} 0.23, {Beta}({bar B}{sup 0} {yields} D{sup 0}{omega}) = 2.57 {+-} 0.11 {+-} 0.14, {Beta}({bar B}{sup 0} {yields} D*{sup 0}{omega}) = 4.55 {+-} 0.24 {+-} 0.39, {Beta}({bar B}{sup 0} {yields} D{sup 0}{eta}') = 1.48 {+-} 0.13 {+-} 0.07, and {Beta}({bar B}{sup 0} {yields} D*{sup 0}{eta}') = 1.49 {+-} 0.22 {+-} 0.15. We also present the first measurement of the longitudinal polarization fraction of the decay channel D*{sup 0}{omega}, f{sub L} = (66.5 {+-} 4.7 {+-} 1.5)%. In the above, the first uncertainty is statistical and the second is systematic. The results are based on a sample of (454 {+-} 5) x 10{sup 6} B{bar B} pairs collected at the {Upsilon}(4S) resonance, with …
Date: February 14, 2012
Creator: Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M. et al.
Object Type: Article
System: The UNT Digital Library
Composite Octet Searches with Jet Substructure (open access)

Composite Octet Searches with Jet Substructure

Many new physics models with strongly interacting sectors predict a mass hierarchy between the lightest vector meson and the lightest pseudoscalar mesons. We examine the power of jet substructure tools to extend the 7 TeV LHC sensitivity to these new states for the case of QCD octet mesons, considering both two gluon and two b-jet decay modes for the pseudoscalar mesons. We develop both a simple dijet search using only the jet mass and a more sophisticated jet substructure analysis, both of which can discover the composite octets in a dijet-like signature. The reach depends on the mass hierarchy between the vector and pseudoscalar mesons. We find that for the pseudoscalar-to-vector meson mass ratio below approximately 0.2 the simple jet mass analysis provides the best discovery limit; for a ratio between 0.2 and the QCD-like value of 0.3, the sophisticated jet substructure analysis has the best discovery potential; for a ratio above approximately 0.3, the standard four-jet analysis is more suitable.
Date: February 14, 2012
Creator: Bai, Yang & Shelton, Jessie
Object Type: Article
System: The UNT Digital Library
The DEEP2 Galaxy Redshift Survey: The Voronoi-Delaunay Method Catalog of Galaxy Groups (open access)

The DEEP2 Galaxy Redshift Survey: The Voronoi-Delaunay Method Catalog of Galaxy Groups

We use the first 25% of the DEEP2 Galaxy Redshift Survey spectroscopic data to identify groups and clusters of galaxies in redshift space. The data set contains 8370 galaxies with confirmed redshifts in the range 0.7 {<=} z {<=} 1.4, over one square degree on the sky. Groups are identified using an algorithm (the Voronoi-Delaunay Method) that has been shown to accurately reproduce the statistics of groups in simulated DEEP2-like samples. We optimize this algorithm for the DEEP2 survey by applying it to realistic mock galaxy catalogs and assessing the results using a stringent set of criteria for measuring group-finding success, which we develop and describe in detail here. We find in particular that the group-finder can successfully identify {approx}78% of real groups and that {approx}79% of the galaxies that are true members of groups can be identified as such. Conversely, we estimate that {approx}55% of the groups we find can be definitively identified with real groups and that {approx}46% of the galaxies we place into groups are interloper field galaxies. Most importantly, we find that it is possible to measure the distribution of groups in redshift and velocity dispersion, n({sigma}, z), to an accuracy limited by cosmic variance, for …
Date: February 14, 2012
Creator: Gerke, Brian F.; Newman, Jeffrey A.; Davis, Marc; Marinoni, Christian; Yan, Renbin; Coil, Alison L. et al.
Object Type: Article
System: The UNT Digital Library
Discretionary Budget Authority by Subfunction: An Overview (open access)

Discretionary Budget Authority by Subfunction: An Overview

President Obama's FY2013 budget submission was released on February 13, 2012. This report provides a graphical overview of historical trends in discretionary budget authority (BA) from FY1976 through FY2011, enacted levels for FY2012 spending, and the levels consistent with the President's proposals for FY2013 through FY2017. Spending caps and budget enforcement mechanisms established in the Budget Control Act (BCA) of 2011 will probably strongly affect the FY2013 budget cycle. This report may provide a starting point for discussions about spending trends and federal priorities, but it does not attempt to explain spending patterns in each policy area.
Date: February 14, 2012
Creator: Austin, D. Andrew
Object Type: Report
System: The UNT Digital Library

Doctoral Recital: 2012-02-14 - J.D. Burnett, conductor

Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: February 14, 2012
Creator: Burnett, J.D.
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2012-02-14 – Brass Quintet Session

Access: Use of this item is restricted to the UNT Community
Brass Quintet session performed at the UNT College of Music Kenton Hall.
Date: February 14, 2012
Creator: Plog, Anthony
Object Type: Video
System: The UNT Digital Library
Evaluation of Representative Smart Grid Investment Grant Project Technologies: Distributed Generation (open access)

Evaluation of Representative Smart Grid Investment Grant Project Technologies: Distributed Generation

This document is one of a series of reports estimating the benefits of deploying technologies similar to those implemented on the Smart Grid Investment Grant (SGIG) projects. Four technical reports cover the various types of technologies deployed in the SGIG projects, distribution automation, demand response, energy storage, and renewables integration. A fifth report in the series examines the benefits of deploying these technologies on a national level. This technical report examines the impacts of addition of renewable resources- solar and wind in the distribution system as deployed in the SGIG projects.
Date: February 14, 2012
Creator: Singh, Ruchi & Vyakaranam, Bharat GNVSR
Object Type: Report
System: The UNT Digital Library
Evaluation of Representative Smart Grid Investment Grant Project Technologies: Thermal Energy Storage (open access)

Evaluation of Representative Smart Grid Investment Grant Project Technologies: Thermal Energy Storage

This document is one of a series of reports estimating the benefits of deploying technologies similar to those implemented on the Smart Grid Investment Grant (SGIG) projects. Four technical reports cover the various types of technologies deployed in the SGIG projects, distribution automation, demand response, energy storage, and renewables integration. A fifth report in the series examines the benefits of deploying these technologies on a national level. This technical report examines the impacts of energy storage technologies deployed in the SGIG projects.
Date: February 14, 2012
Creator: Tuffner, Francis K. & Bonebrake, Christopher A.
Object Type: Report
System: The UNT Digital Library
Evaluation of Representative Smart Grid Investment Project Technologies: Demand Response (open access)

Evaluation of Representative Smart Grid Investment Project Technologies: Demand Response

This document is one of a series of reports estimating the benefits of deploying technologies similar to those implemented on the Smart Grid Investment Grant (SGIG) projects. Four technical reports cover the various types of technologies deployed in the SGIG projects, distribution automation, demand response, energy storage, and renewables integration. A fifth report in the series examines the benefits of deploying these technologies on a national level. This technical report examines the impacts of a limited number of demand response technologies and implementations deployed in the SGIG projects.
Date: February 14, 2012
Creator: Fuller, Jason C.; Prakash Kumar, Nirupama & Bonebrake, Christopher A.
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, February 14, 2012 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, February 14, 2012

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: February 14, 2012
Creator: DeSilver, Debi
Object Type: Newspaper
System: The Gateway to Oklahoma History
Extending the Temporary Payroll Tax Reduction: A Brief Description and Economic Analysis (open access)

Extending the Temporary Payroll Tax Reduction: A Brief Description and Economic Analysis

This report briefly discusses economic stimulus considerations related to temporary payroll tax reductions. In addition, as the Social Security trust fund is made whole through a transfer from the general fund, select options to offset this increase in the deficit will be examined to illustrate how the choice offsets can affect the net amount of economic stimulus provided.
Date: February 14, 2012
Creator: Marples, Donald J. & Sherlock, Molly F.
Object Type: Report
System: The UNT Digital Library

February 14, 2012 Veterans Hospital in Bonham, Texas

Webpage from McKinney TXSSAR website containing information about an event at Veterans Hospital in Bonham, Texas on February 14, 2012.
Date: February 14, 2012
Creator: Texas Society Sons of the American Revolution, McKinney Chapter 63
Object Type: Website
System: The UNT Digital Library
Federal Employees' Retirement System: Benefits and Financing (open access)

Federal Employees' Retirement System: Benefits and Financing

Most civilian federal employees who were hired before 1984 are covered by the Civil Service Retirement System, and contribute 7.0% of their pay to a retirement fund. Federal employees hired in 1984 or later are covered by the Federal Employees' Retirement System and contribute 0.8% of their pay to a retirement fund. Both require participants to contribute toward the cost of their pensions through a payroll tax. The taxable wage base is $110,100 in 2012. This report discusses both retirement funds.
Date: February 14, 2012
Creator: Isaacs, Katelin P.
Object Type: Report
System: The UNT Digital Library
Focus Report, Volume 82, Number 2, February 14, 2011 (open access)

Focus Report, Volume 82, Number 2, February 14, 2011

"This report summarizes the key constitutional provisions and rules governing bills in the Legislature, with emphasis on House rules."
Date: February 14, 2012
Creator: Texas. Legislature. House of Representatives. Research Organization.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 25, Ed. 1 Tuesday, February 14, 2012 (open access)

The Greensheet (Houston, Tex.), Vol. 43, No. 25, Ed. 1 Tuesday, February 14, 2012

Free weekly newspaper that includes business and classified advertising.
Date: February 14, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 26, Ed. 1 Tuesday, February 14, 2012 (open access)

The Greensheet (Houston, Tex.), Vol. 43, No. 26, Ed. 1 Tuesday, February 14, 2012

Free weekly newspaper that includes business and classified advertising.
Date: February 14, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
[Historic Marker Application: W. T. Carter, Jr. House] (open access)

[Historic Marker Application: W. T. Carter, Jr. House]

Application materials submitted to the Texas Historical Commission requesting a historic marker for the W. T. Carter, Jr. House, in Houston, Texas. The materials include the inscription text of the marker, original application, narrative, floor plans, and photographs.
Date: February 14, 2012
Creator: Texas Historical Commission
Object Type: Text
System: The Portal to Texas History
Integrated genome-based studies of Shewanella ecophysiology (open access)

Integrated genome-based studies of Shewanella ecophysiology

This project was a component of the Shewanella Federation and, as such, contributed to the overall goal of applying the genomic tools to better understand eco-physiology and speciation of respiratory-versatile members of Shewanella genus. Our role at Boston University was to perform bioreactor and high throughput gene expression microarrays, and combine dynamic flux balance modeling with experimentally obtained transcriptional and gene expression datasets from different growth conditions. In the first part of project, we designed the S. oneidensis microarray probes for Affymetrix Inc. (based in California), then we identified the pathways of carbon utilization in the metal-reducing marine bacterium Shewanella oneidensis MR-1, using our newly designed high-density oligonucleotide Affymetrix microarray on Shewanella cells grown with various carbon sources. Next, using a combination of experimental and computational approaches, we built algorithm and methods to integrate the transcriptional and metabolic regulatory networks of S. oneidensis. Specifically, we combined mRNA microarray and metabolite measurements with statistical inference and dynamic flux balance analysis (dFBA) to study the transcriptional response of S. oneidensis MR-1 as it passes through exponential, stationary, and transition phases. By measuring time-dependent mRNA expression levels during batch growth of S. oneidensis MR-1 under two radically different nutrient compositions (minimal lactate and …
Date: February 14, 2012
Creator: Daniel, Segre & Qasim, Beg
Object Type: Report
System: The UNT Digital Library