Response of NSTX Liquid Lithium divertor to High Heat Loads (open access)

Response of NSTX Liquid Lithium divertor to High Heat Loads

Samples of the NSTX Liquid Lithium Divertor (LLD) with and without an evaporative Li coating were directly exposed to a neutral beam ex-situ at a power of ~1.5 MW/m2 for 1-3 seconds. Measurements of front face and bulk sample temperature were obtained. Predictions of temperature evolution were derived from a 1D heat flux model. No macroscopic damage occurred when the "bare" sample was exposed to the beam but microscopic changes to the surface were observed. The Li-coated sample developed a lithium hydroxide (LiOH) coating, which did not change even when the front face temperature exceeded the pure Li melting point. These results are consistent with the lack of damage to the LLD surface and imply that heating alone may not expose pure liquid Li if the melting point of surface impurities is not exceeded. This suggests that flow and heat are needed for future PFCs requiring a liquid Li surface. __________________________________________________
Date: July 18, 2012
Creator: Abrams, Tyler; Kallman, J; Kaitaa, R; Foley, E L; Grayd, T K; Kugel, H et al.
Object Type: Article
System: The UNT Digital Library
U.S.-EU Trade and Economic Relations: Key Policy Issues for the 112th Congress (open access)

U.S.-EU Trade and Economic Relations: Key Policy Issues for the 112th Congress

U.S. and European private stakeholders, concerned about slow growth, job creation, and increased competition from emerging economies, have urged Brussels and Washington to strengthen transatlantic trade and economic ties by reducing or eliminating remaining trade barriers and by cooperating more closely in addressing global economic challenges. A select group of these issues are examined in this report.
Date: January 18, 2012
Creator: Ahearn, Raymond J.
Object Type: Report
System: The UNT Digital Library
The Strategic Petroleum Reserve: Authorization, Operation, and Drawdown Policy (open access)

The Strategic Petroleum Reserve: Authorization, Operation, and Drawdown Policy

This report looks at the history, purpose, and current status of the Strategic Petroleum Reserve.
Date: June 18, 2012
Creator: Andrews, Anthony & Pirog, Robert
Object Type: Report
System: The UNT Digital Library
Algeria: Current Issues (open access)

Algeria: Current Issues

This report focuses on current political issues, as well as Algeria's economy, its foreign policy, and U.S.-Algeria relations. Key issues include reform efforts initiated after anti-government demonstrations in early 2011 and amid the regional tumult of the "Arab Spring"; terrorism and related security issues; human rights; national reconciliation following the "dark decade" of the 1990s Islamist insurgency; and activism in ethnic Berber areas.
Date: January 18, 2012
Creator: Arieff, Alexis
Object Type: Report
System: The UNT Digital Library
Political Transition in Tunisia (open access)

Political Transition in Tunisia

This report discusses Tunisia's "Jasmine Revolution," the common term for President Zine El Abidine Ben Ali's flight from the country following weeks of mounting anti-government protests. This report discusses how the Jasmine Revolution appears to have added momentum to anti-government sentiment in Egypt, Libya, Yemen, and other countries. This report discusses Tunisia's pro-democracy movement; concerns over potential instability in a previously secure, pro-Western area; and U.S.-Tunisian relations.
Date: June 18, 2012
Creator: Arieff, Alexis
Object Type: Report
System: The UNT Digital Library
RELAP5 Application to Accident Analysis of the NIST Research Reactor (open access)

RELAP5 Application to Accident Analysis of the NIST Research Reactor

Detailed safety analyses have been performed for the 20 MW D{sub 2}O moderated research reactor (NBSR) at the National Institute of Standards and Technology (NIST). The time-dependent analysis of the primary system is determined with a RELAP5 transient analysis model that includes the reactor vessel, the pump, heat exchanger, fuel element geometry, and flow channels for both the six inner and twenty-four outer fuel elements. A post-processing of the simulation results has been conducted to evaluate minimum critical heat flux ratio (CHFR) using the Sudo-Kaminaga correlation. Evaluations are performed for the following accidents: (1) the control rod withdrawal startup accident and (2) the maximum reactivity insertion accident. In both cases the RELAP5 results indicate that there is adequate margin to CHF and no damage to the fuel will occur because of sufficient coolant flow through the fuel channels and the negative scram reactivity insertion.
Date: March 18, 2012
Creator: Baek, J.; Cuadra Gascon, A.; Cheng, L. Y. & Diamond, D.
Object Type: Article
System: The UNT Digital Library
Defense Surplus Equipment Disposal: Background Information (open access)

Defense Surplus Equipment Disposal: Background Information

This report discusses the Department of Defense (DOD) policy via the Defense Utilization and Marketing Service (DRMS) for disposing of government equipment and supplies considered surplus or deemed unnecessary to the agency's currently designated mission. The report focuses on DRMS background, as well as the most recent DRMS policy modifications.
Date: July 18, 2012
Creator: Bailey Grasso, Valerie
Object Type: Report
System: The UNT Digital Library
A Note on the Convergence of the Godunov Method for Impact Problems (open access)

A Note on the Convergence of the Godunov Method for Impact Problems

None
Date: April 18, 2012
Creator: Banks, J W
Object Type: Article
System: The UNT Digital Library
Medicaid and the State Children’s Health Insurance Program (CHIP) Provisions in ACA: Summary and Timeline (open access)

Medicaid and the State Children’s Health Insurance Program (CHIP) Provisions in ACA: Summary and Timeline

None
Date: January 18, 2012
Creator: Baumrucker, Evelyne P.; Binder, Cliff; Herz, Elicia J. & Heisler, Elayne J.
Object Type: Report
System: The UNT Digital Library
Treated Wood Waste Identification and Characterization (open access)

Treated Wood Waste Identification and Characterization

None
Date: January 18, 2012
Creator: Belue, A
Object Type: Report
System: The UNT Digital Library
NEW MATERIALS DEVELOPED TO MEET REGULATORY AND TECHNICAL REQUIREMENTS ASSOCIATED WITH IN-SITU DECOMMISSIONING OF NUCLEAR REACTORS AND ASSOCIATED FACILITIES (open access)

NEW MATERIALS DEVELOPED TO MEET REGULATORY AND TECHNICAL REQUIREMENTS ASSOCIATED WITH IN-SITU DECOMMISSIONING OF NUCLEAR REACTORS AND ASSOCIATED FACILITIES

For the 2010 ANS Embedded Topical Meeting on Decommissioning, Decontamination and Reutilization and Technology, Savannah River National Laboratory's Mike Serrato reported initial information on the newly developed specialty grout materials necessary to satisfy all requirements associated with in-situ decommissioning of P-Reactor and R-Reactor at the U.S. Department of Energy's Savannah River Site. Since that report, both projects have been successfully completed and extensive test data on both fresh properties and cured properties has been gathered and analyzed for a total of almost 191,150 m{sup 3} (250,000 yd{sup 3}) of new materials placed. The focus of this paper is to describe the (1) special grout mix for filling the P-Reactor vessel (RV) and (2) the new flowable structural fill materials used to fill the below grade portions of the facilities. With a wealth of data now in hand, this paper also captures the test results and reports on the performance of these new materials. Both reactors were constructed and entered service in the early 1950s, producing weapons grade materials for the nation's defense nuclear program. R-Reactor was shut down in 1964 and the P-Reactor in 1991. In-situ decommissioning (ISD) was selected for both facilities and performed as Comprehensive Environmental Response, Compensations …
Date: January 18, 2012
Creator: Blankenship, J.; Langton, C.; Musall, J. & Griffin, W.
Object Type: Article
System: The UNT Digital Library
Advanced Flywheel Composite Rotors (open access)

Advanced Flywheel Composite Rotors

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Grid-Scale Rampable Intermittent Dispatchable Storage (GRIDS) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses advanced flywheel composite rotors as part of the "Low-Cost, High-Energy Density Flywheel Storage Grid Demonstration" project.
Date: May 18, 2012
Creator: Boeing Aerospace Company
Object Type: Text
System: The UNT Digital Library
Reexamination of Agency Reporting Requirements: Annual Process Under the GPRA Modernization Act of 2010 (GPRAMA) (open access)

Reexamination of Agency Reporting Requirements: Annual Process Under the GPRA Modernization Act of 2010 (GPRAMA)

On January 4, 2011, the GPRA Modernization Act of 2010 (GPRAMA) became law. The acronym "GPRA" in the act's short title refers to the Government Performance and Results Act of 1993 (GPRA 1993), a law that GPRAMA substantially modified. Some of GPRAMA's provisions require agencies to produce plans and reports for a variety of audiences that focus on goal-setting and performance measurement. Other provisions, by contrast, establish an annual process to reexamine the usefulness of certain reporting requirements. The report concludes by looking potential issues for Congress in two categories.
Date: April 18, 2012
Creator: Brass, Clinton T.
Object Type: Report
System: The UNT Digital Library
Evaluating Use of Satellite Observations for Detecting Large CO2 Leaks and Carbon Sequestration Monitoring (open access)

Evaluating Use of Satellite Observations for Detecting Large CO2 Leaks and Carbon Sequestration Monitoring

None
Date: July 18, 2012
Creator: Brewer, W; Hoffman, G; Silver, E; DiLeonardo, C; Henderson, J R & Vigil, S
Object Type: Report
System: The UNT Digital Library
Electricity Transmission Cost Allocation (open access)

Electricity Transmission Cost Allocation

This report analyzes recent developments concerning transmission cost allocation leading up to the Federal Energy Regulatory Commission's (FERC) Order No. 1000, as well as the contents of the order and their potential impact on the transmission planning process in the future.
Date: December 18, 2012
Creator: Campbell, Richard J. & Vann, Adam
Object Type: Report
System: The UNT Digital Library
Midnight Rulemaking (open access)

Midnight Rulemaking

This report provides an overview of midnight rulemaking (regulations issued at the end of a presidential administration) and discusses actions that recent outgoing and incoming administrations have taken pertaining to midnight rules. It explains how an incoming President could change or eliminate midnight rules, and provides options for congressional oversight of midnight rules.
Date: July 18, 2012
Creator: Carey, Maeve P.
Object Type: Report
System: The UNT Digital Library
Opening The NIF Archive To The Scientific User Community (open access)

Opening The NIF Archive To The Scientific User Community

None
Date: December 18, 2012
Creator: Casey, A
Object Type: Report
System: The UNT Digital Library
Afghanistan Casualties: Military Forces and Civilians (open access)

Afghanistan Casualties: Military Forces and Civilians

This report collects statistics from a variety of sources on casualties sustained during Operation Enduring Freedom (OEF), which began on October 7, 2001, and is ongoing. OEF actions take place primarily in Afghanistan.
Date: January 18, 2012
Creator: Chesser, Susan G.
Object Type: Report
System: The UNT Digital Library
Flow-Assisted Alkaline Battery (open access)

Flow-Assisted Alkaline Battery

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Grid-Scale Rampable Intermittent Dispatchable Storage (GRIDS) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses the enhancement of consumer-grade disposable batteries as part of the "Low-Cost Grid-Scale Electrical Storage using a Flow-Assisted Rechargeable Zinc-Manganese Dioxide Battery" project.
Date: May 18, 2012
Creator: City University of New York. Energy Institute.
Object Type: Text
System: The UNT Digital Library
Numerical Reproducibility for Implicit Monte Carlo Simulations (open access)

Numerical Reproducibility for Implicit Monte Carlo Simulations

None
Date: October 18, 2012
Creator: Cleveland, M.; Brunner, T. & Gentile, N.
Object Type: Article
System: The UNT Digital Library
Plasma blobs and filaments -- fusion scientists discover secrets of turbulent edge transport (open access)

Plasma blobs and filaments -- fusion scientists discover secrets of turbulent edge transport

None
Date: October 18, 2012
Creator: Cohen, B I; Myra, J; Garcia, O E; Smith, D & Parker, S E
Object Type: Article
System: The UNT Digital Library
Contemporary Developments in Presidential Elections (open access)

Contemporary Developments in Presidential Elections

This report considers contemporary developments in presidential elections. It emphasizes three topics chosen for their recurring importance and notable recent developments.
Date: October 18, 2012
Creator: Coleman, Kevin J.; Garrett, R. Sam & Neale, Thomas H.
Object Type: Report
System: The UNT Digital Library
Free Trade Agreements: Impact on U.S. Trade and Implications for U.S. Trade Policy (open access)

Free Trade Agreements: Impact on U.S. Trade and Implications for U.S. Trade Policy

This report looks at how free trade areas (FTAs) affect U.S. trade in regards to trade policy, specifically tariffs. It looks closely at the Bush Administration's Trade Promotion Policy, and pending FTAs leftover from this administration. Additionally, it looks at the Obama Administration's work in the prospective Trans-Pacific Strategic Economic Partnership Agreement (TPP).
Date: June 18, 2012
Creator: Cooper, William H.
Object Type: Report
System: The UNT Digital Library