30 Matching Results

Search Results

Results: 1 - 24 next
open access

A Proof-of-Principle Echo-enabled Harmonic Generation Free Electron Laser Experiment at SLAC

Description: With the advent of X-ray Free Electron Lasers (FELs), new methods have been developed to extend capabilities at short wavelengths beyond Self-Amplified Spontaneous Emission (SASE). In particular, seeding of a FEL allows for temporal control of the radiation pulse and increases the peak brightness by orders of magnitude. Most recently, Gennady Stupakov and colleagues at SLAC proposed a new technique: Echo-Enabled Harmonic Generation (EEHG). Here a laser microbunches the beam in an undulator and … more
Date: January 6, 2012
Creator: Pernet, Pierre-Louis
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Ticket to Work and Self-Sufficiency Program: Overview and Current Issues

Description: This report begins with an explanation of the various Ticket to Work provisions and provides an analysis of program performance and return-to-work barriers encountered by ticket holders and ENs. The report concludes with a discussion of program-related issues that may be of interest to Congress.
Date: January 6, 2012
Creator: Moulta-Ali, Umar
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Exploration of Optimization Options for Increasing Performance of a GPU Implementation of a Three-dimensional Bilateral Filter

Description: This report explores using GPUs as a platform for performing high performance medical image data processing, specifically smoothing using a 3D bilateral filter, which performs anisotropic, edge-preserving smoothing. The algorithm consists of a running a specialized 3D convolution kernel over a source volume to produce an output volume. Overall, our objective is to understand what algorithmic design choices and configuration options lead to optimal performance of this algorithm on the GPU. We ex… more
Date: January 6, 2012
Creator: Bethel, E. Wes & Bethel, E. Wes
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

INVESTIGATION OF PLUTONIUM AND URANIUM UPTAKE INTO MCU SOLVENT AND NEXT GENERATION SOLVENT

Description: At the request of the Savannah River Remediation (SRR) customer, the Savannah River National Laboratory (SRNL) examined the plutonium (Pu) and uranium (U) uptake into the Next Generation Solvent (NGS) that will be used at the Salt Waste Processing Facility (SWPF). SRNL examined archived samples of solvent used in Extraction-Scrub-Strip (ESS) tests, as well as samples from new tests designed explicitly to examine the Pu and U uptake. Direct radiocounting for Pu and U provided the best results. U… more
Date: January 6, 2012
Creator: Peters, T. & Fink, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Examination of Temporal Trends in Electricity Reliability Based on Reports from U.S. Electric Utilities

Description: Since the 1960s, the U.S. electric power system has experienced a major blackout about once every 10 years. Each has been a vivid reminder of the importance society places on the continuous availability of electricity and has led to calls for changes to enhance reliability. At the root of these calls are judgments about what reliability is worth and how much should be paid to ensure it. In principle, comprehensive information on the actual reliability of the electric power system and on how pro… more
Date: January 6, 2012
Creator: Eto, Joseph H.; LaCommare, Kristina Hamachi; Larsen, Peter; Todd, Annika & Fisher, Emily
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

U.S. Assistance Programs in China

Description: This report examines U.S. foreign assistance activities in the People's Republic of China (PRC), including U.S. Department of State and U.S. Agency for International Development (USAID) programming, foreign operations appropriations, policy history, and legislative background. International programs supported by U.S. departments and agencies other than the Department of State and USAID are not covered in this report.
Date: January 6, 2012
Creator: Lum, Thomas
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Debt Limit: History and Recent Increases

Description: This report discusses how the total debt of the federal government can increase, an historical overview of debt limits, and how the current economic slowdown has led to higher deficits and thereby a series of debt limit increases, as well as legislation related to these increases.
Date: January 6, 2012
Creator: Austin, D. Andrew & Levit, Mindy R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress

Description: The planned size of the Navy, the rate of Navy ship procurement, and the prospective affordability of the Navy's shipbuilding plans have been matters of concern for the congressional defense committees for the past several years. The Navy's proposed FY2012 budget requested funding for the procurement of 10 new battle force ships. Issues for Congress include the appropriate future size and structure of the Navy in light of changes in strategic and budget circumstances, the sufficiency of the Nav… more
Date: January 6, 2012
Creator: O'Rourke, Ronald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Iran Sanctions

Description: This report focuses on the United States' relationship with Iran and how the Obama Administration is handling prior administration's economic sanctions against Iran. The Obama Administration's policy approach toward Iran has contrasted with the Bush Administration's by attempting to couple the imposition of sanctions to an active and direct U.S. effort to negotiate with Iran on the nuclear issue. That approach was not initially altered because of the Iranian dispute over its June 12, 2009, elec… more
Date: January 6, 2012
Creator: Katzman, Kenneth
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

State, Foreign Operations, and Related Programs: FY2012 Budget and Appropriations

Description: This report analyzes the FY2012 request and congressional action related to FY2012 State- Foreign Operations legislation. This report focuses on only the accounts funded through the State-Foreign Operations appropriations bill, but provides appropriations figures for the entire international affairs (Function 150) budget in Appendix E.
Date: January 6, 2012
Creator: Epstein, Susan B. & Lawson, Marian Leonardo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

"Surge Recovery" and Next Steps in the War in Afghanistan: In Brief

Description: This report draws in part on the author's recent three-week visit to Afghanistan, in November 2011, based on an invitation from the Commander of NATO's International Security Assistance Force (ISAF), General John Allen. It provides initial observations about surge recovery in broader operational and strategic context, and links those observations to current debates that may be of interest to Congress as it considers the strength and duration of further U.S. involvement in Afghanistan.
Date: January 6, 2012
Creator: Dale, Catherine
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Border Security: Immigration Enforcement Between Ports of Entry

Description: This report concludes by raising additional questions about future investments at the border, how to weigh such investments against other enforcement strategies, and the relationship between border enforcement and the broader debate about U.S. immigration policy.
Date: January 6, 2012
Creator: Rosenblum, Marc R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen