The Effect of Absorption Systems on Cosmic Reionization (open access)

The Effect of Absorption Systems on Cosmic Reionization

None
Date: October 25, 2013
Creator: Alvarez, Marcelo A. & Abel, Tom
Object Type: Article
System: The UNT Digital Library
Assistance to States on Electric Industry Issues (open access)

Assistance to States on Electric Industry Issues

This project seeks to educate state policymakers through a coordinated approach involving state legislatures, regulators, energy officials, and governors’ staffs. NCSL’s activities in this project focus on educating state legislators. Major components of this proposal include technical assistance to state legislatures, briefing papers, coordination with the National Council on Electricity Policy, information assistance, coordination and outreach, meetings, and a set of transmission-related activities.
Date: October 25, 2010
Creator: Andersen, Glen
Object Type: Report
System: The UNT Digital Library
Inelastic Dark Matter at the LHC (open access)

Inelastic Dark Matter at the LHC

None
Date: October 25, 2013
Creator: Bai, Yang & Tait, Tim M. P.
Object Type: Article
System: The UNT Digital Library
Measuring the Invisible Higgs Width at the 7 and 8 TeV LHC (open access)

Measuring the Invisible Higgs Width at the 7 and 8 TeV LHC

None
Date: October 25, 2013
Creator: Bai, Yang; Draper, Patrick & Shelton, Jessie
Object Type: Article
System: The UNT Digital Library
ALTERNATIVE METHODS FOR TRITIUM RECOVERY FROM THE LIFELITHIUM BLANKET: FY13 FINAL REPORT (open access)

ALTERNATIVE METHODS FOR TRITIUM RECOVERY FROM THE LIFELITHIUM BLANKET: FY13 FINAL REPORT

None
Date: October 25, 2013
Creator: Bandhauer, T & Adler, J
Object Type: Report
System: The UNT Digital Library
Solar Projects: DOE Section 1705 Loan Guarantees (open access)

Solar Projects: DOE Section 1705 Loan Guarantees

This report discusses the solar energy initiative and the political implications. The objective of this report is to provide Congress with insight regarding solar projects supported by Department of Energy (DOE’s) loan guarantee program, the risk characteristics of these projects, and how other DOE loan guarantee projects are either similar to or different from the Solyndra solar manufacturing project.
Date: October 25, 2011
Creator: Brown, Phillip
Object Type: Report
System: The UNT Digital Library
GAO Issues Opinions on Applicability of Congressional Review Act to Two Guidance Documents (open access)

GAO Issues Opinions on Applicability of Congressional Review Act to Two Guidance Documents

This report discusses the Government Accountability Office's (GAO) issued opinions regarding whether a 2013 interagency guidance document and a 2016 amendment to the Tongass Land and Resource Management Plan by the Department of Agriculture were considered "rules" and as such be subject to the Congressional Review Act (CRA). The GAO determined neither document was a rule and thus they were not subject to CRA.
Date: October 25, 2017
Creator: Carey, Maeve P.
Object Type: Report
System: The UNT Digital Library
Optical System Case Studies for Speckle Imaging (open access)

Optical System Case Studies for Speckle Imaging

None
Date: October 25, 2013
Creator: Carrano, C J
Object Type: Report
System: The UNT Digital Library
A luminescent nanocrystal stress gauge (open access)

A luminescent nanocrystal stress gauge

Microscale mechanical forces can determine important outcomes ranging from the site of material fracture to stem cell fate. However, local stresses in a vast majority of systems cannot be measured due to the limitations of current techniques. In this work, we present the design and implementation of the CdSe/CdS core/shell tetrapod nanocrystal, a local stress sensor with bright luminescence readout. We calibrate the tetrapod luminescence response to stress, and use the luminescence signal to report the spatial distribution of local stresses in single polyester fibers under uniaxial strain. The bright stress-dependent emission of the tetrapod, its nanoscale size, and its colloidal nature provide a unique tool that may be incorporated into a variety of micromechanical systems including materials and biological samples to quantify local stresses with high spatial resolution.
Date: October 25, 2010
Creator: Choi, Charina; Koski, Kristie; Olson, Andrew & Alivisatos, Paul
Object Type: Article
System: The UNT Digital Library
Doing Business with Iran: EU-Iran Trade and Investment Relations (open access)

Doing Business with Iran: EU-Iran Trade and Investment Relations

This report discusses the European Union's (EU's) resumption of business with Iran after the signing of the 2015 nuclear disarmament agreement which led to the lifting of nuclear related sanctions. It outlines rates of business and major investments in Iran by European companies and the effect possible U.S. re-imposition of sanctions against Iran may have on the market and U.S.-EU relations.
Date: October 25, 2017
Creator: Cimino-Isaacs, Cathleen D. & Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library
Bounds on Dark Matter Interactions with Electroweak Gauge Bosons (open access)

Bounds on Dark Matter Interactions with Electroweak Gauge Bosons

None
Date: October 25, 2013
Creator: Cotta, R. C.; Hewett, J. L.; Le, M. P. & Rizzo, T. G.
Object Type: Article
System: The UNT Digital Library
Poverty in the United States in 2016: In Brief (open access)

Poverty in the United States in 2016: In Brief

This report discuses the poverty rate in the United States for 2016 as reported by the U.S. Census Bureau. The Census Bureau releases poverty estimates every September for the prior calendar year. Hence, most of the comparisons discussed in this report are year-to-year comparisons. However, in addition to the most recent year's data, this brief will present a historical perspective as well as information on poverty for demographic groups (by family structure, age, race and Hispanic origin, and work status) and by state. Over the past several decades, criticisms of the official poverty measure have led to the development of an alternative research measure called the Supplemental Poverty Measure (SPM), which the Census Bureau has also computed and released. Statistics comparing the official measure with the SPM are provided at the conclusion of this brief.
Date: October 25, 2017
Creator: Dalaker, Joseph
Object Type: Report
System: The UNT Digital Library

Working With the Federal Fleets

Presentation about federal fleet data, working with the federal government, and results from a survey of Clean Cities coordinators about their experiences with regulated fleets.
Date: October 25, 2010
Creator: Daley, R.
Object Type: Presentation
System: The UNT Digital Library
All Tree-level Amplitudes in Massless QCD (open access)

All Tree-level Amplitudes in Massless QCD

We derive compact analytical formulae for all tree-level color-ordered gauge theory amplitudes involving any number of external gluons and up to three massless quark-anti-quark pairs. A general formula is presented based on the combinatorics of paths along a rooted tree and associated determinants. Explicit expressions are displayed for the next-to-maximally helicity violating (NMHV) and next-to-next-to-maximally helicity violating (NNMHV) gauge theory amplitudes. Our results are obtained by projecting the previously-found expressions for the super-amplitudes of the maximally supersymmetric Yang-Mills theory (N = 4 SYM) onto the relevant components yielding all gluon-gluino tree amplitudes in N = 4 SYM. We show how these results carry over to the corresponding QCD amplitudes, including massless quarks of different flavors as well as a single electroweak vector boson. The public Mathematica package GGT is described, which encodes the results of this work and yields analytical formulae for all N = 4 SYM gluon-gluino trees. These in turn yield all QCD trees with up to four external arbitrary-flavored massless quark-anti-quark-pairs.
Date: October 25, 2010
Creator: Dixon, Lance J.; Henn, Johannes M.; Plefka, Jan & Schuster, Theodor
Object Type: Article
System: The UNT Digital Library
2006 National Ambient Air Quality Standards (NAAQS) for Fine Particulate Matter (PM2.5): Designating Nonattainment Areas (open access)

2006 National Ambient Air Quality Standards (NAAQS) for Fine Particulate Matter (PM2.5): Designating Nonattainment Areas

This report focuses primarily on the NAAQS implementation process for designating geographical nonattainment areas with respect to the tightening of the PM2.5 standards under the 2006 particulates NAAQS, including comparisons with the final designations under the 1997 PM2.5 NAAQS. Also included is a brief overview of states' subsequent obligations for developing and submitting implementation plans (SIPs) for attaining or maintaining compliance with the NAAQS.
Date: October 25, 2012
Creator: Esworthy, Robert
Object Type: Report
System: The UNT Digital Library
Pb Isotopes as an Indicator of the Asian Contribution to Particulate Air Pollution in Urban California (open access)

Pb Isotopes as an Indicator of the Asian Contribution to Particulate Air Pollution in Urban California

During the last two decades, expanding industrial activity in east Asia has led to increased production of airborne pollutants that can be transported to North America. Previous efforts to detect this trans-Pacific pollution have relied upon remote sensing and remote sample locations. We tested whether Pb isotope ratios in airborne particles can be used to directly evaluate the Asian contribution to airborne particles of anthropogenic origin in western North America, using a time series of samples from a pair of sites upwind and downwind of the San Francisco Bay Area. Our results for airborne Pb at these sites indicate a median value of 29 Asian origin, based on mixing relations between distinct regional sample groups. This trans-Pacific Pb is present in small quantities but serves as a tracer for airborne particles within the growing Asian industrial plume. We then applied this analysis to archived samples from urban sites in central California. Taken together, our results suggest that the analysis of Pb isotopes can reveal the distribution of airborne particles affected by Asian industrial pollution at urban sites in northern California. Under suitable circumstances, this analysis can improve understanding of the global transport of pollution, independent of transport models.
Date: October 25, 2010
Creator: Ewing, Stephanie A.; Christensen, John N.; Brown, Shaun T.; Vancuren, Richard A.; Cliff, Steven S. & DePaolo, Donald J.
Object Type: Article
System: The UNT Digital Library
Zgoubi users guide (open access)

Zgoubi users guide

N/A
Date: October 25, 2012
Creator: F., Meot
Object Type: Report
System: The UNT Digital Library
Army Drawdown and Restructuring: Background and Issues for Congress (open access)

Army Drawdown and Restructuring: Background and Issues for Congress

This report discusses the new defense strategy, which was unveiled by senior DOD leadership based on a review of potential future security challenges, current defense strategy, and budgetary constraints. This strategy will rebalance the Army's global posture and presence, emphasizing where potential problems are likely to arise, such as the Asia-Pacific region and the Middle East
Date: October 25, 2013
Creator: Feickert, Andrew
Object Type: Report
System: The UNT Digital Library
Modeling Ternary Pumped Storage Units (open access)

Modeling Ternary Pumped Storage Units

None
Date: October 25, 2013
Creator: Feltes, J.; Kazachkov, Y.; Gong, B.; Trouille, B.; Donalek, P.; Koritarov, V. et al.
Object Type: Report
System: The UNT Digital Library
Modeling Adjustable Speed Pumped Storage Hydro Units Employing Doubly-Fed Induction Machines (open access)

Modeling Adjustable Speed Pumped Storage Hydro Units Employing Doubly-Fed Induction Machines

None
Date: October 25, 2013
Creator: Feltes, J.; Koritarov, V.; Guzowski, L.; Kazachkov, Y.; Gong, B.; Trouille, B. et al.
Object Type: Report
System: The UNT Digital Library
Review of Existing Hydroelectric Turbine-Governor Simulation Models (open access)

Review of Existing Hydroelectric Turbine-Governor Simulation Models

None
Date: October 25, 2013
Creator: Feltes, J.; Koritarov, V.; Guzowski, L.; Kazachkov, Y.; Lam, B.; Grande-Moran, C. et al.
Object Type: Report
System: The UNT Digital Library
Testing Dynamic Simulation Models for Different Types of Advanced Pumped Storage Hydro Units (open access)

Testing Dynamic Simulation Models for Different Types of Advanced Pumped Storage Hydro Units

None
Date: October 25, 2013
Creator: Feltes, J.; Koritarov, V.; Kazachkov, Y.; Gong, B.; Donalek, P.; Gevorgian, V. (Decision and Information Sciences) et al.
Object Type: Report
System: The UNT Digital Library
Payments for Affordable Care Act (ACA) Cost-Sharing Reductions (open access)

Payments for Affordable Care Act (ACA) Cost-Sharing Reductions

This report discusses President Trump's announcement that the federal government would stop issuing cost-sharing reductions(CSRs) to insurers under the Affordable Care Act (ACA) and potential implications for the insurance market and consumers.
Date: October 25, 2017
Creator: Fernandez, Bernadette
Object Type: Report
System: The UNT Digital Library
MCNP5 CALCULATIONS REPLICATING ARH-600 NITRATE DATA (open access)

MCNP5 CALCULATIONS REPLICATING ARH-600 NITRATE DATA

This report serves to extend the previous document: 'MCNP Calculations Replicating ARH-600 Data' by replicating the nitrate curves found in ARH-600. This report includes the MCNP models used, the calculated critical dimension for each analyzed parameter set, and the resulting data libraries for use with the CritView code. As with the ARH-600 data, this report is not meant to replace the analysis of the fissile systems by qualified criticality personnel. The M CNP data is presented without accounting for the statistical uncertainty (although this is typically less than 0.001) or bias and, as such, the application of a reasonable safety margin is required. The data that follows pertains to the uranyl nitrate and plutonium nitrate spheres, infinite cylinders, and infinite slabs of varying isotopic composition, reflector thickness, and molarity. Each of the cases was modeled in MCNP (version 5.1.40), using the ENDF/B-VI cross section set. Given a molarity, isotopic composition, and reflector thickness, the fissile concentration and diameter (or thicknesses in the case of the slab geometries) were varied. The diameter for which k-effective equals 1.00 for a given concentration could then be calculated and graphed. These graphs are included in this report. The pages that follow describe the regions …
Date: October 25, 2011
Creator: Finfrock, S. H.
Object Type: Report
System: The UNT Digital Library