Economic Recovery: Sustaining U.S. Economic Growth in a Post-Crisis Economy (open access)

Economic Recovery: Sustaining U.S. Economic Growth in a Post-Crisis Economy

This report looks at how Congress has been proactive in helping the economy recover after the 2008-2009 recession, as well as how it can help to keep recessions at bay in the future. Issues include typical post-war recessions, insufficient pace of private spending, and the long-term debt problem.
Date: July 22, 2010
Creator: Elwell, Craig K.
Object Type: Report
System: The UNT Digital Library
Final Technical Report (open access)

Final Technical Report

The research project focuses on the following topics: a) removal of artifacts in the Doppler spectra from the ARM cloud radars, b) development of the second generation Active Remote Sensing of Cloud Layers (ARSCL) cloud data products, and c) evaluation of ARM cloud property retrievals within the framework of the EarthCARE simulator. We continue to pursue research on areas related to radiative transfer, atmospheric heating rates and related dynamics (topics of interest to the ARM science community at this time) and to contribute on an ad-hoc basis to the science of other ARM-supported principal investigators.
Date: February 22, 2010
Creator: Eugene Clothiaux, Johannes Verlinde, Jerry Harrington
Object Type: Report
System: The UNT Digital Library
The TANF Emergency Contingency Fund (open access)

The TANF Emergency Contingency Fund

This report discusses the American Recovery and Reinvestment Act of 2009, which created an Emergency Contingency Fund (ECF) within the Temporary Assistance for Needy Families (TANF) block grant. The fund expired on September 30, 2010. It helped states, Indian tribes, and territories pay for additional costs of providing economic aid to families during the current economic downturn for FY2009 and FY2010. This report describes the TANF ECF as well as proposals offered in 2010 to extend and modify TANF emergency funding.
Date: December 22, 2010
Creator: Falk, Gene
Object Type: Report
System: The UNT Digital Library
The Temporary Assistance for Needy Families (TANF) Block Grant: A Primer on TANF Financing and Federal Requirements (open access)

The Temporary Assistance for Needy Families (TANF) Block Grant: A Primer on TANF Financing and Federal Requirements

None
Date: December 22, 2010
Creator: Falk, Gene
Object Type: Report
System: The UNT Digital Library
Chemical Species in the Vapor Phase of Hanford Double-Shell Tanks: Potential Impacts on Waste Tank Corrosion Processes (open access)

Chemical Species in the Vapor Phase of Hanford Double-Shell Tanks: Potential Impacts on Waste Tank Corrosion Processes

The presence of corrosive and inhibiting chemicals on the tank walls in the vapor space, arising from the waste supernatant, dictate the type and degree of corrosion that occurs there. An understanding of how waste chemicals are transported to the walls and the affect on vapor species from changing supernatant chemistry (e.g., pH, etc.), are basic to the evaluation of risks and impacts of waste changes on vapor space corrosion (VSC). In order to address these issues the expert panel workshop on double-shell tank (DST) vapor space corrosion testing (RPP-RPT-31129) participants made several recommendations on the future data and modeling needs in the area of DST corrosion. In particular, the drying of vapor phase condensates or supernatants can form salt or other deposits at the carbon steel interface resulting in a chemical composition at the near surface substantially different from that observed directly in the condensates or the supernatants. As a result, over the past three years chemical modeling and experimental studies have been performed on DST supernatants and condensates to predict the changes in chemical composition that might occur as condensates or supernatants equilibrate with the vapor space species and dry at the carbon steel surface. The experimental studies …
Date: September 22, 2010
Creator: Felmy, Andrew R.; Qafoku, Odeta; Arey, Bruce W. & Boomer, Kayle D.
Object Type: Report
System: The UNT Digital Library
SPECTRAL AMPLITUDE AND PHASE EVOLUTION IN PETAWATT LASER PULSES (open access)

SPECTRAL AMPLITUDE AND PHASE EVOLUTION IN PETAWATT LASER PULSES

The influence of the active gain medium on the spectral amplitude and phase of amplified pulses in a CPA system is studied. Results from a 10-PW example based on Nd-doped mixed glasses are presented. In conclusion, this study shows that, by using spectral shaping and gain saturation in a mixed-glass amplifier, it is possible to produce 124 fs, 1.4 kJ laser pulses. One detrimental effect, the pulse distortion due to resonant amplification medium, has been investigated and its magnitude as well as its compensation calculated.
Date: November 22, 2010
Creator: Filip, C V
Object Type: Article
System: The UNT Digital Library
Organized Crime in the United States: Trends and Issues for Congress (open access)

Organized Crime in the United States: Trends and Issues for Congress

This report provides a background on organized crime in the United States as well as the tools that Congress has afforded for the federal government to combat it. It outlines the trends in federal efforts to investigate and prosecute organized crime. The report then discusses the evolving nature of organized crime, including the domestic impact of organized crime, prominent organized crime groups, and their illegal activities affecting the United States. It concludes with a discussion of issues that Congress may wish to consider, including the attention the federal government allocates to organized crime matters, the multilateral efforts to combat organized crime, and issues surrounding a potential nexus between organized crime and terrorism.
Date: December 22, 2010
Creator: Finklea, Kristin M.
Object Type: Report
System: The UNT Digital Library
Plasticity at High Pressures and Strain Rates Using Oblique-Impact Isentropic-Compression Experiments (open access)

Plasticity at High Pressures and Strain Rates Using Oblique-Impact Isentropic-Compression Experiments

None
Date: March 22, 2010
Creator: Florando, Jeff N.; Jiao, Tong; Grunschel, Stephen E.; Clifton, Rodney J.; Lassila, David H.; Ferranti, Louis, Jr. et al.
Object Type: Report
System: The UNT Digital Library
Earthquakes: Risk, Detection, Warning, and Research (open access)

Earthquakes: Risk, Detection, Warning, and Research

This report discusses earthquake hazards and risk in the United States, federal programs that support earthquake monitoring, the U.S. capability to detect earthquakes and issue notifications and warnings, and federally-supported research to improve the fundamental scientific understanding of earthquakes with a goal of reducing U.S. vulnerability.
Date: January 22, 2010
Creator: Folger, Peter
Object Type: Report
System: The UNT Digital Library
Safety Evaluation Report: Development of Improved Composite Pressure Vessels for Hydrogen Storage, Lincoln Composites, Lincoln, NE, May 25, 2010 (open access)

Safety Evaluation Report: Development of Improved Composite Pressure Vessels for Hydrogen Storage, Lincoln Composites, Lincoln, NE, May 25, 2010

Lincoln Composites operates a facility for designing, testing, and manufacturing composite pressure vessels. Lincoln Composites also has a U.S. Department of Energy (DOE)-funded project to develop composite tanks for high-pressure hydrogen storage. The initial stage of this project involves testing the permeation of high-pressure hydrogen through polymer liners. The company recently moved and is constructing a dedicated research/testing laboratory at their new location. In the meantime, permeation tests are being performed in a corner of a large manufacturing facility. The safety review team visited the Lincoln Composites site on May 25, 2010. The project team presented an overview of the company and project and took the safety review team on a tour of the facility. The safety review team saw the entire process of winding a carbon fiber/resin tank on a liner, installing the boss and valves, and curing and painting the tank. The review team also saw the new laboratory that is being built for the DOE project and the temporary arrangement for the hydrogen permeation tests.
Date: December 22, 2010
Creator: Fort, III, William C.; Kallman, Richard A.; Maes, Miguel; Skolnik, Edward G. & Weiner, Steven C.
Object Type: Report
System: The UNT Digital Library
Next Generation Metallic Iron Nodule Technology in Electric Arc Steelmaking - Phase II (open access)

Next Generation Metallic Iron Nodule Technology in Electric Arc Steelmaking - Phase II

The current trend in the steel industry is a gradual decline in conventional steelmaking from taconite pellets in blast furnaces, and an increasing number of alternative processes using metallic scrap iron, pig iron and metallized iron ore products. Currently, iron ores from Minnesota and Michigan are pelletized and shipped to the lower Great Lakes ports as blast furnace feed. The existing transportation system and infrastructure is geared to handling these bulk materials. In order to expand the opportunities for the existing iron ore mines beyond their blast furnace customer base, a new material is needed to satisfy the needs of the emerging steel industry while utilizing the existing infrastructure and materials handling. A recent commercial installation employing Kobe Steel’s ITmk3 process, was installed in Northeastern Minnesota. The basic process uses a moving hearth furnace to directly reduce iron oxides to metallic iron from a mixture of iron ore, coals and additives. The resulting products can be shipped using the existing infrastructure for use in various steelmaking processes. The technology reportedly saves energy by 30% over the current integrated steelmaking process and reduces emissions by more than 40%. A similar large-scale pilot plant campaign is also currently in progress using JFE …
Date: December 22, 2010
Creator: Fosnacht, Donald R.; Iwasaki, Iwao; Kiesel, Richard F.; Englund, David J.; Hendrickson, David W. & Bleifuss, Rodney L.
Object Type: Report
System: The UNT Digital Library
PRELIMINARY STUDY OF CERAMICS FOR IMMOBILIZATION OF ADVANCED FUEL CYCLE REPROCESSING WASTES (open access)

PRELIMINARY STUDY OF CERAMICS FOR IMMOBILIZATION OF ADVANCED FUEL CYCLE REPROCESSING WASTES

The Savannah River National Laboratory (SRNL) developed a series of ceramic waste forms for the immobilization of Cesium/Lanthanide (CS/LN) and Cesium/Lanthanide/Transition Metal (CS/LN/TM) waste streams anticipated to result from nuclear fuel reprocessing. Simple raw materials, including Al{sub 2}O{sub 3}, CaO, and TiO{sub 2} were combined with simulated waste components to produce multiphase ceramics containing hollandite-type phases, perovskites (particularly BaTiO{sub 3}), pyrochlores, zirconolite, and other minor metal titanate phases. Identification of excess Al{sub 2}O{sub 3} via X-ray Diffraction (XRD) and Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/EDS) in the first series of compositions led to a Phase II study, with significantly reduced Al{sub 2}O{sub 3} concentrations and increased waste loadings. Three fabrication methodologies were used, including melting and crystallizing, pressing and sintering, and Spark Plasma Sintering (SPS), with the intent of studying phase evolution under various sintering conditions. XRD and SEM/EDS results showed that the partitioning of the waste elements in the sintered materials was very similar, despite varying stoichiometry of the phases formed. The Phase II compositions generally contained a reduced amount of unreacted Al{sub 2}O{sub 3} as identified by XRD, and had phase assemblages that were closer to the initial targets. Chemical composition measurements showed no significant issues …
Date: September 22, 2010
Creator: Fox, K.; Billings, A.; Brinkman, K. & Marra, J.
Object Type: Report
System: The UNT Digital Library
The MS-13 and 18th Street Gangs: Emerging Transnational Gang Threats? (open access)

The MS-13 and 18th Street Gangs: Emerging Transnational Gang Threats?

This report provides an overview of the MS-13 and M-18 gangs,5 examines how MS-13 and M-18 gangs are different from other gangs and organized crime groups, and discusses what constitutes a transnational gang. The report also explores whether MS-13 and M-18 gangs are transnational gangs, and discusses the various federal responses to these gangs.
Date: January 22, 2010
Creator: Franco, Celinda
Object Type: Report
System: The UNT Digital Library
Automated Political Telephone Calls ("Robo Calls") in Federal Campaigns: Overview and Policy Options (open access)

Automated Political Telephone Calls ("Robo Calls") in Federal Campaigns: Overview and Policy Options

This report provides an overview of how automated political calls are used in federal campaigns, including attention to recent spending estimates and polling data regarding these calls. The report also discusses legislation that would affect the calls, with descriptions of various policy options and how the options or their regulation may be related to campaign finance law and to the First Amendment.
Date: March 22, 2010
Creator: Garrett, R. S. & Ruane, Kathleen Ann
Object Type: Report
System: The UNT Digital Library
The Disruption of Vessel-Spanning Bubbles with Sloped Fins in Flat-Bottom and 2:1 Elliptical-Bottom Vessels (open access)

The Disruption of Vessel-Spanning Bubbles with Sloped Fins in Flat-Bottom and 2:1 Elliptical-Bottom Vessels

Radioactive sludge was generated in the K-East Basin and K-West Basin fuel storage pools at the Hanford Site while irradiated uranium metal fuel elements from the N Reactor were being stored and packaged. The fuel has been removed from the K Basins, and currently, the sludge resides in the KW Basin in large underwater Engineered Containers. The first phase to the Sludge Treatment Project being led by CH2MHILL Plateau Remediation Company (CHPRC) is to retrieve and load the sludge into sludge transport and storage containers (STSCs) and transport the sludge to T Plant for interim storage. The STSCs will be stored inside T Plant cells that are equipped with secondary containment and leak-detection systems. The sludge is composed of a variety of particulate materials and water, including a fraction of reactive uranium metal particles that are a source of hydrogen gas. If a situation occurs where the reactive uranium metal particles settle out at the bottom of a container, previous studies have shown that a vessel-spanning gas layer above the uranium metal particles can develop and can push the overlying layer of sludge upward. The major concern, in addition to the general concern associated with the retention and release of …
Date: September 22, 2010
Creator: Gauglitz, Phillip A.; Buchmiller, William C.; Jenks, Jeromy WJ; Chun, Jaehun; Russell, Renee L.; Schmidt, Andrew J. et al.
Object Type: Report
System: The UNT Digital Library
F-35 Alternate Engine Program: Background and Issues for Congress (open access)

F-35 Alternate Engine Program: Background and Issues for Congress

This report discusses the past four years of administration proposals to terminate the program to develop the General Electric/Rolls-Royce F136 engine as an alternative to the Pratt & Whitney F135 engine that currently powers the F-35 Joint Strike Fighter (JSF). This report explores both sides of the termination argument.
Date: March 22, 2010
Creator: Gertler, Jeremiah
Object Type: Report
System: The UNT Digital Library
Federal Advisory Committees: An Overview (open access)

Federal Advisory Committees: An Overview

This report is categorized into four categories: (I) Introduction, (II) The Federal Advisory Committee Act, (III) Creating a FACA Committee and (IV) Analysis.
Date: March 22, 2010
Creator: Ginsberg, Wendy R.
Object Type: Report
System: The UNT Digital Library
Energy Efficiency Services Sector: Workforce Size and Expectations for Growth (open access)

Energy Efficiency Services Sector: Workforce Size and Expectations for Growth

The energy efficiency services sector (EESS) is poised to become an increasingly important part of the U.S. economy. Climate change and energy supply concerns, volatile and increasing energy prices, and a desire for greater energy independence have led many state and national leaders to support an increasingly prominent role for energy efficiency in U.S. energy policy. The national economic recession has also helped to boost the visibility of energy efficiency, as part of a strategy to support economic recovery. We expect investment in energy efficiency to increase dramatically both in the near-term and through 2020 and beyond. This increase will come both from public support, such as the American Recovery and Reinvestment Act (ARRA) and significant increases in utility ratepayer funds directed toward efficiency, and also from increased private spending due to codes and standards, increasing energy prices, and voluntary standards for industry. Given the growing attention on energy efficiency, there is a concern among policy makers, program administrators, and others that there is an insufficiently trained workforce in place to meet the energy efficiency goals being put in place by local, state, and federal policy. To understand the likelihood of a potential workforce gap and appropriate response strategies, one …
Date: March 22, 2010
Creator: Goldman, Charles; Fuller, Merrian C.; Stuart, Elizabeth; Peters, Jane S.; McRae, Marjorie; Albers, Nathaniel et al.
Object Type: Report
System: The UNT Digital Library
Federal Funding for Wildfire Control and Management (open access)

Federal Funding for Wildfire Control and Management

None
Date: April 22, 2010
Creator: Gorte, Ross W.
Object Type: Report
System: The UNT Digital Library
Federal Lands Managed by the Bureau of Land Management (BLM) and the Forest Service (FS): Issues in the 111th Congress (open access)

Federal Lands Managed by the Bureau of Land Management (BLM) and the Forest Service (FS): Issues in the 111th Congress

None
Date: October 22, 2010
Creator: Gorte, Ross W.; Vincent, Carol Hardy; Alexander, Kristina & Humphries, Marc
Object Type: Report
System: The UNT Digital Library
Project BioShield: Authorities, Appropriations, Acquisitions, and Issues for Congress (open access)

Project BioShield: Authorities, Appropriations, Acquisitions, and Issues for Congress

This report discusses the Project BioShield Act (P.L. 108-276), In 2004, passed by Congress to encourage the private sector to develop medical countermeasures against chemical, biological, radiological, and nuclear (CBRN) terrorism agents and to provide a novel mechanism for federal acquisition of those newly developed countermeasures. This law provides three main authorities: (1) relaxing regulatory requirements for some CBRN terrorism-related spending, including hiring personnel and awarding research grants; (2) guaranteeing a federal market for new CBRN medical countermeasures; and (3) permitting emergency use of unapproved countermeasures.
Date: January 22, 2010
Creator: Gottron, Frank
Object Type: Report
System: The UNT Digital Library
Building Energy Information Systems: User Case Studies (open access)

Building Energy Information Systems: User Case Studies

Measured energy performance data are essential to national efforts to improve building efficiency, as evidenced in recent benchmarking mandates, and in a growing body of work that indicates the value of permanent monitoring and energy information feedback. This paper presents case studies of energy information systems (EIS) at four enterprises and university campuses, focusing on the attained energy savings, and successes and challenges in technology use and integration. EIS are broadly defined as performance monitoring software, data acquisition hardware, and communication systems to store, analyze and display building energy information. Case investigations showed that the most common energy savings and instances of waste concerned scheduling errors, measurement and verification, and inefficient operations. Data quality is critical to effective EIS use, and is most challenging at the subsystem or component level, and with non-electric energy sources. Sophisticated prediction algorithms may not be well understood but can be applied quite effectively, and sites with custom benchmark models or metrics are more likely to perform analyses external to the EIS. Finally, resources and staffing were identified as a universal challenge, indicating a need to identify additional models of EIS use that extend beyond exclusive in-house use, to analysis services.
Date: March 22, 2010
Creator: Granderson, Jessica; Piette, Mary Ann & Ghatikar, Girish
Object Type: Article
System: The UNT Digital Library
The War Powers Resolution: After Thirty-Six Years (open access)

The War Powers Resolution: After Thirty-Six Years

This report discusses and assesses the War Powers Resolution and its application since enactment in 1973, providing detailed background on various cases in which it was used, as well as cases in which issues of its applicability were raised.
Date: April 22, 2010
Creator: Grimmett, Richard F.
Object Type: Report
System: The UNT Digital Library
Persistence of gamma-H2AX and 53BP1 foci in proliferating and nonproliferating human mammary epithelial cells after exposure to gamma-rays or iron ions (open access)

Persistence of gamma-H2AX and 53BP1 foci in proliferating and nonproliferating human mammary epithelial cells after exposure to gamma-rays or iron ions

To investigate {gamma}-H2AX (phosphorylated histone H2AX) and 53BP1 (tumour protein 53 binding protein No. 1) foci formation and removal in proliferating and non-proliferating human mammary epithelial cells (HMEC) after exposure to sparsely and densely ionizing radiation under different cell culture conditions. HMEC cells were grown either as monolayers (2D) or in extracellular matrix to allow the formation of acinar structures in vitro (3D). Foci numbers were quantified by image analysis at various time points after exposure. Our results reveal that in non-proliferating cells under 2D and 3D cell culture conditions, iron-ion induced {gamma}-H2AX foci were still present at 72 h after exposure, although 53BP1 foci returned to control levels at 48 h. In contrast in proliferating HMEC, both {gamma}-H2AX and 53BP1 foci decreased to control levels during the 24-48 h time interval after irradiation under 2D conditions. Foci numbers decreased faster after {gamma}-ray irradiation and returned to control levels by 12 h regardless of marker, cell proliferation status, and cell culture condition. Conclusions: The disappearance of radiation induced {gamma}-H2AX and 53BP1 foci in HMEC have different dynamics that depend on radiation quality and proliferation status. Notably, the general patterns do not depend on the cell culture condition (2D versus 3D). …
Date: December 22, 2010
Creator: Groesser, Torsten; Chang, Hang; Fontenay, Gerald; Chen, James; Costes, Sylvain V.; Barcellos-Hoff, Mary Helen et al.
Object Type: Article
System: The UNT Digital Library