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Transatlantic Regulatory Cooperation: A Possible Role for Congress (open access)

Transatlantic Regulatory Cooperation: A Possible Role for Congress

This report provides background and analysis on the TEC process, the role of the Congress, and the TLD.
Date: August 25, 2009
Creator: Ahearn, Raymond J. & Morelli, Vincent
System: The UNT Digital Library
Final Technical Report for Award DE-FG02-05ER41389 A New Electrostatically-Focused, UV HPD for Liquid Xenon: A Direct Comparison with APD, PMT, SiPM in an Integrated Database (open access)

Final Technical Report for Award DE-FG02-05ER41389 A New Electrostatically-Focused, UV HPD for Liquid Xenon: A Direct Comparison with APD, PMT, SiPM in an Integrated Database

Within the scope of the project, a LXe detector and associated gas handling and purification system were set up to study the response of various photodetectors to the VUV Xe light. In particular we tested an Advanced Photonix Large Area Avalanche Photodiode (APD), Silicon Photomultipliers (SiPMs) from two different sources and an Hamamtsu Photonics APD. As part of the XENON Dark Matter project, sponsored by the National Science Foundation, we have accumulated independent knowledge of the response of compact metal channel photomultipliers. At this stage, we conclude that the last are far superior in terms of reliability and performance in a LXe detector environment. More studies are needed with APDs and SiPMs in LXe, taking advantage of the improved performance of these sensors with time. We could not test a hybrid PMT (HPD) since the only available unit on loan from one manufacturer lacked the mechanical stability and was packaged in a form not compatible with LXe purity requirements. Meanwhile, within the XENON collaboration, we are developing with Hamamatsu a hybrid PMT which is named QUPID (Quartz Photon Intensifying Detector) which promises to solve the problems of radioactivity and purity encountered with previous HPDs. We attach to this report two …
Date: August 25, 2009
Creator: Aprile, Elena
System: The UNT Digital Library
The European Union: Questions and Answers (open access)

The European Union: Questions and Answers

This report provides a brief overview of the European Union (EU), an economic and political partnership between 27 sovereign member states. The report describes the formation of the EU, the three main institutions of the EU, and the EU's relationship with the United States.
Date: September 25, 2009
Creator: Archick, Kristin & Mix, Derek E.
System: The UNT Digital Library
Sexual Violence in African Conflicts (open access)

Sexual Violence in African Conflicts

This report focuses on current conflicts in Africa in which sexual violence is reported to be widespread or systematic. It describes the context in which such violence takes place, selected cases where it is currently occurring, and U.S. policy responses. It concludes with a discussion of potential policy considerations for Congress.
Date: November 25, 2009
Creator: Arieff, Alexis
System: The UNT Digital Library
The Global Economic Crisis: Impact on Sub-Saharan Africa and Global Policy Responses (open access)

The Global Economic Crisis: Impact on Sub-Saharan Africa and Global Policy Responses

This report analyzes Africa's vulnerability to the global crisis and potential implications for economic growth, poverty alleviation, fiscal balances, and political stability. The report describes channels through which the crisis is affecting Africa, and provides information on international efforts to address the impact, including U.S. policies and those of multilateral institutions in which the United States plays a major role.
Date: August 25, 2009
Creator: Arieff, Alexis; Weiss, Martin A. & Jones, Vivian C.
System: The UNT Digital Library
The Federal Budget: Current and Upcoming Issues (open access)

The Federal Budget: Current and Upcoming Issues

This report examines changes to the Federal Budget for Fiscal Years 2008-2010. The report considers the factors that have an effect on various budgetary functions and decisions. The report specifically focuses on the effect of the 2007-2008 financial recession on the budget, but also considers more long-term fiscal issues such as health care for retiring Baby-Boomers.
Date: November 25, 2009
Creator: Austin, D. Andrew & Levit, Mindy R.
System: The UNT Digital Library
Advances in the theory of box integrals (open access)

Advances in the theory of box integrals

Box integrals - expectations <|{rvec r}|{sup s}> or <|{rvec r}-{rvec q}|{sup s}> over the unit n-cube (or n-box) - have over three decades been occasionally given closed forms for isolated n,s. By employing experimental mathematics together with a new, global analytic strategy, we prove that for n {le} 4 dimensions the box integrals are for any integer s hypergeometrically closed in a sense we clarify herein. For n = 5 dimensions, we show that a single unresolved integral we call K{sub 5} stands in the way of such hyperclosure proofs. We supply a compendium of exemplary closed forms that naturally arise algorithmically from this theory.
Date: June 25, 2009
Creator: Bailey, David H.; Borwein, J. M. & Crandall, R. E.
System: The UNT Digital Library
Hydrogen Production by Water Dissociation Using Ceramic Membranes - Annual Report for Fy 2008. (open access)

Hydrogen Production by Water Dissociation Using Ceramic Membranes - Annual Report for Fy 2008.

The objective of this project is to develop dense ceramic membranes that, without using an external power supply or circuitry, can produce hydrogen via coal/coal gas-assisted water dissociation. This project grew from an effort to develop a dense ceramic membrane for separating hydrogen from gas mixtures such as those generated during coal gasification, methane partial oxidation, and water-gas shift reactions. That effort led to the development of various cermet (i.e., ceramic/metal composite) membranes that enable hydrogen production by two methods. In one method, a hydrogen transport membrane (HTM) selectively removes hydrogen from a gas mixture by transporting it through either a mixed protonic/electronic conductor or a hydrogen transport metal. In the other method, an oxygen transport membrane (OTM) generates hydrogen mixed with steam by removing oxygen that is generated through water splitting. This project focuses on the development of OTMs that efficiently produce hydrogen via the dissociation of water. Supercritical boilers offer very high-pressure steam that can be decomposed to provide pure hydrogen by means of OTMs. Oxygen resulting from the dissociation of steam can be used for coal gasification, enriched combustion, or synthesis gas production. Hydrogen and sequestration-ready CO{sub 2} can be produced from coal and steam by using …
Date: March 25, 2009
Creator: Balachandran, U.; Dorris, S. E.; Emerson, J. E.; Lee, T. H.; Lu, Y.; Park, C. Y. et al.
System: The UNT Digital Library
Enhanced Inclusion Removal from Steel in the Tundish (open access)

Enhanced Inclusion Removal from Steel in the Tundish

The objective of this project was to develop an effective chemical filtering system for significantly reducing the content of inclusion particles in the steel melts exiting the tundish for continuous casting. This project combined a multi-process approach that aimed to make significant progress towards an "inclusion free" steel by incorporating several interdependent concepts to reduce the content of inclusions in the molten steel exiting the tundish for the caster. The goal is to produce "cleaner" steel.
Date: September 25, 2009
Creator: Bradt, R. C. & Sharif, M.A.R.
System: The UNT Digital Library
Enhanced Incluison Removal from Steel in the Tundish (open access)

Enhanced Incluison Removal from Steel in the Tundish

The objective of this project was to develop an effective chemical filtering system for significantly reducing the content of inclusion particles in the steel melts exiting the tundish for continuous casting. This project combined a multi-process approach that aimed to make significant progress towards an "inclusion free" steel by incorporating several interdependent concepts to reduce the content of inclusions in the molten steel exiting the tundish for the caster. The goal is to produce "cleaner" steel.
Date: September 25, 2009
Creator: Bradt, R.C. & Sharif, M.A.R.
System: The UNT Digital Library
The Endangered Species Act (ESA) in the 11th Congress: Conflicting Values and Difficult Choices (open access)

The Endangered Species Act (ESA) in the 11th Congress: Conflicting Values and Difficult Choices

This report discusses U.S. policy toward global climate change, which evolved from a "study only" to a more "study and action" orientation in 1992 with ratification of the U.N. Framework Convention on Climate Change (UNFCCC).
Date: February 25, 2009
Creator: Buck, Eugene H.; Corn, M. L.; Sheikh, Pervaze A.; Meltz, Robert & Alexander, Kristina
System: The UNT Digital Library
Japan-U.S. Relations: Issues for Congress (open access)

Japan-U.S. Relations: Issues for Congress

This report discusses the relationship between the United States and Japan, including Japanese efforts to support the U.S. in the wake of the September 11th, 2001 terrorist attacks and the two countries' economic ties, especially with regards to the recent economic downturn. This report also discusses the general political atmosphere of Japan, including the recent and ongoing political turmoil in Tokyo.
Date: November 25, 2009
Creator: Chanlett-Avery, Emma; Cooper, William H.; Manyin, Mark E. & Konishi, Weston S.
System: The UNT Digital Library
Traumatic Brain Injury: Care and Treatment of Operation Enduring Freedom and Operation Iraqi Freedom Veterans (open access)

Traumatic Brain Injury: Care and Treatment of Operation Enduring Freedom and Operation Iraqi Freedom Veterans

This report provides a review of traumatic brain injury (TBI) as an illness, its prevalence among veterans, current activity to address the issue in the Department of Veterans Affairs, and current policy issues.
Date: November 25, 2009
Creator: Corby-Edwards, Amalia K.
System: The UNT Digital Library
"Gang of Four" Congressional Intelligence Notifications (open access)

"Gang of Four" Congressional Intelligence Notifications

This report reviews the history of Gang of Four notification process and compares this procedure with that of the "Gang of Eight" notification procedure.
Date: September 25, 2009
Creator: Cumming, Alfred
System: The UNT Digital Library
Intelligence Reform at the Department of Energy: Policy Issues and Organizational Alternatives (open access)

Intelligence Reform at the Department of Energy: Policy Issues and Organizational Alternatives

This report analyzes two consolidations of separate counterintelligence (CI) office -- the first authorized by Congress at the Department of Energy's (DOE) request; the second initiated by DOE -- and examines the impact of each on the effectiveness of the Department's CI program.
Date: September 25, 2009
Creator: Cumming, Alfred
System: The UNT Digital Library
Sensitive Covert Action Notifications: Oversight Options for Congress (open access)

Sensitive Covert Action Notifications: Oversight Options for Congress

This report describes the statutory provision authorizing Gang of Eight notifications, reviews the legislative history of the provision, and examines the impact of such notifications on congressional oversight.
Date: September 25, 2009
Creator: Cumming, Alfred
System: The UNT Digital Library
Parameterizing Size Distribution in Ice Clouds (open access)

Parameterizing Size Distribution in Ice Clouds

PARAMETERIZING SIZE DISTRIBUTIONS IN ICE CLOUDS David L. Mitchell and Daniel H. DeSlover ABSTRACT An outstanding problem that contributes considerable uncertainty to Global Climate Model (GCM) predictions of future climate is the characterization of ice particle sizes in cirrus clouds. Recent parameterizations of ice cloud effective diameter differ by a factor of three, which, for overcast conditions, often translate to changes in outgoing longwave radiation (OLR) of 55 W m-2 or more. Much of this uncertainty in cirrus particle sizes is related to the problem of ice particle shattering during in situ sampling of the ice particle size distribution (PSD). Ice particles often shatter into many smaller ice fragments upon collision with the rim of the probe inlet tube. These small ice artifacts are counted as real ice crystals, resulting in anomalously high concentrations of small ice crystals (D < 100 µm) and underestimates of the mean and effective size of the PSD. Half of the cirrus cloud optical depth calculated from these in situ measurements can be due to this shattering phenomenon. Another challenge is the determination of ice and liquid water amounts in mixed phase clouds. Mixed phase clouds in the Arctic contain mostly liquid water, and the …
Date: September 25, 2009
Creator: DeSlover, Daniel & Mitchell, David L.
System: The UNT Digital Library
On-Axis Brilliance and Power of In-Vacuum Undulators for the Advanced Photon Source. (open access)

On-Axis Brilliance and Power of In-Vacuum Undulators for the Advanced Photon Source.

A request for studying the spectral performance of in-vacuum undulators (IVUs) for the APS storage ring was recently put forward. In-vacuum undulators are prevalent at other synchrotron radiation facilities such as the ESRF and the Spring-8. However, they never made it into the arsenal of undulators at the APS because the brilliance tuning curves were sufficiently wide due to the fact that the undulator minimum gap could be set as low as 10.5 mm. For sector 3, which in the past used a narrow-gap vacuum chamber, the minimum undulator pole gap was allowed to be set as low as 8.5 mm, providing contiguous tuning curves between the first and third harmonic radiation for a 2.7-cm-period device. (Subsequently, the narrow-gap vacuum chamber was removed and replaced with a standard vacuum chamber, which allows a minimum gap of 10.5 mm.) For sector 4, which currently holds the only narrow-gap vacuum chamber at the APS, the minimum gap is 9.5 mm. In this sector, a permanent magnet hybrid undulator with SmCo magnets is used instead of NdFeB magnets because of their higher radiation resistance and their better protection against radiation-induced demagnetization of the magnets. In the realm of looking to the future, new …
Date: November 25, 2009
Creator: Dejus, R.; Jaski, M. & Kim, S. H.
System: The UNT Digital Library
Military Construction, Veterans Affairs, and Related Agencies: FY2009 Appropriations (open access)

Military Construction, Veterans Affairs, and Related Agencies: FY2009 Appropriations

This report examines various aspects of H.R. 1, the American Recovery and Reinvestment Act of 2009 (ARRA), otherwise known as the "economic stimulus," passed by both chambers and enacted by President Barak Obama on February 17, 2009.
Date: February 25, 2009
Creator: Else, Daniel H.; Scott, Christine & Panangala, Sidath Viranga
System: The UNT Digital Library
Immigration: Frequently Asked Questions on the State Criminal Alien Assistance Program (SCAAP) (open access)

Immigration: Frequently Asked Questions on the State Criminal Alien Assistance Program (SCAAP)

This report addresses frequently asked questions regarding the State Criminal Alien Assistance Program (SCAAP), a formula grant program that provides financial assistance to states and localities for correctional officer salary costs incurred for incarcerating "undocumented criminal aliens."
Date: September 25, 2009
Creator: Ester, Karma
System: The UNT Digital Library
United States Military Casualty Statistics: Operation Iraqi Freedom and Operation Enduring Freedom (open access)

United States Military Casualty Statistics: Operation Iraqi Freedom and Operation Enduring Freedom

This report presents difficult-to-find statistics regarding U.S. military casualties in Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF, Afghanistan), including those concerning medical evacuations, amputations, and the demographics of casualties.
Date: March 25, 2009
Creator: Fischer, Hannah
System: The UNT Digital Library
The FHA Modernization Act of 2008 (open access)

The FHA Modernization Act of 2008

This report discusses the Federal Housing Administration (FHA) Manufactured Housing Loan Modernization Act of 2008, which makes several amendments to the FHA program that insures loans on manufactured housing loan program under Title I of the National Housing.
Date: February 25, 2009
Creator: Foote, Bruce E.
System: The UNT Digital Library
EMSL Operations Manual (open access)

EMSL Operations Manual

This manual is a general resource tool to assist EMSL users and Laboratory staff within EMSL locate official policy, practice and subject matter experts. It is not intended to replace or amend any formal Battelle policy or practice. Users of this manual should rely only on Battelle’s Standard Based Management System (SBMS) for official policy. No contractual commitment or right of any kind is created by this manual. Battelle management reserves the right to alter, change, or delete any information contained within this manual without prior notice.
Date: March 25, 2009
Creator: Foster, Nancy S.
System: The UNT Digital Library
Technosocial Modeling for Determining the Status and Nature of a State’s Nuclear Activities (open access)

Technosocial Modeling for Determining the Status and Nature of a State’s Nuclear Activities

The International Atomic Energy Agency State Evaluation Process: The Role of Information Analysis in Reaching Safeguards Conclusions (Mathews et al. 2008), several examples of nonproliferation models using analytical software were developed that may assist the IAEA with collecting, visualizing, analyzing, and reporting information in support of the State Evaluation Process. This paper focuses on one of the examples a set of models developed in the Proactive Scenario Production, Evidence Collection, and Testing (ProSPECT) software that evaluates the status and nature of a state’s nuclear activities. The models use three distinct subject areas to perform this assessment: the presence of nuclear activities, the consistency of those nuclear activities with national nuclear energy goals, and the geopolitical context in which those nuclear activities are taking place. As a proof-of-concept for the models, a crude case study was performed. The study, which attempted to evaluate the nuclear activities taking place in Syria prior to September 2007, yielded illustrative, yet inconclusive, results. Due to the inconclusive nature of the case study results, changes that may improve the model’s efficiency and accuracy are proposed.
Date: September 25, 2009
Creator: Gastelum, Zoe N. & Harvey, Julia B.
System: The UNT Digital Library