DETERMINATION OF REPORTABLE RADIONUCLIDES FOR DWPF SLUDGE BATCH 5 (MACROBATCH 6) (open access)

DETERMINATION OF REPORTABLE RADIONUCLIDES FOR DWPF SLUDGE BATCH 5 (MACROBATCH 6)

The Waste Acceptance Product Specifications (WAPS) 1.2 require that ''The Producer shall report the inventory of radionuclides (in Curies) that have half-lives longer than 10 years and that are, or will be, present in concentrations greater than 0.05 percent of the total inventory for each waste type indexed to the years 2015 and 3115''. As part of the strategy to comply with WAPS 1.2, the Defense Waste Processing Facility (DWPF) will report for each waste type, all radionuclides (with half-lives greater than 10 years) that have concentrations greater than 0.01 percent of the total inventory from time of production through the 1100 year period from 2015 through 3115. The initial listing of radionuclides to be included is based on the design-basis glass as identified in the Waste Form Compliance Plan (WCP) and Waste Form Qualification Report (WQR). However, it is required that this list be expanded if other radionuclides with half-lives greater than 10 years are identified that may meet the greater than 0.01% criterion for Curie content. Specification 1.6 of the WAPS, International Atomic Energy Agency (IAEA) Safeguards Reporting for High Level Waste (HLW), requires that the ratio by weights of the following uranium and plutonium isotopes be reported: …
Date: February 4, 2010
Creator: Bannochie, C.; Bibler, N. & Diprete, D.
Object Type: Report
System: The UNT Digital Library
Assessment and Mitigation of Electromagnetic Pulse (EMP) Impacts at Short-pulse Laser Facilities (open access)

Assessment and Mitigation of Electromagnetic Pulse (EMP) Impacts at Short-pulse Laser Facilities

The National Ignition Facility (NIF) will be impacted by electromagnetic pulse (EMP) during normal long-pulse operation, but the largest impacts are expected during short-pulse operation utilizing the Advanced Radiographic Capability (ARC). Without mitigation these impacts could range from data corruption to hardware damage. We describe our EMP measurement systems on Titan and NIF and present some preliminary results and thoughts on mitigation.
Date: February 4, 2010
Creator: Brown, Jr., C G; Bond, E; Clancy, T; Dangi, S; Eder, D C; Ferguson, W et al.
Object Type: Article
System: The UNT Digital Library
Waste Area Group 10, Operable Unit 10-08, Annual Monitoring Status Report for Fiscal Year 2009 (open access)

Waste Area Group 10, Operable Unit 10-08, Annual Monitoring Status Report for Fiscal Year 2009

This report documents the status of Fiscal Year 2009 groundwater monitoring performed in Waste Area Group 10 at the U.S. Department of Energy Idaho National Laboratory Site, as identified in the Groundwater Monitoring and Field Sampling Plan for Operable Unit 10-08. Twelve of the fourteen required wells were sampled, and all ten required intervals from the Westbay wells were sampled. Two wells were not sampled because they were in the process of being converted into multiple-sample-interval Westbay wells by the U.S. Geological Survey. Groundwater samples were analyzed for volatile organic compounds identified on the Contract Laboratory Program target analyte list as well as metals (filtered), anions, and radionuclides (i.e., I-129, tritium, Tc-99, gross alpha, gross beta, and Sr-90). No contaminant exceeded maximum contaminant levels in wells along the southern boundary of the Idaho National Laboratory Site or in guard wells. Iron was above its secondary maximum contaminant level of 300 ug/L in one well. The cause of the elevated iron concentration is uncertain. Lead was detected just below its action level. However, the zinc concentration was also elevated in these wells, and the source of the lead is probably galvanized riser pipe in the wells. Once the galvanized pipe is …
Date: February 4, 2010
Creator: Forsythe, Howard
Object Type: Report
System: The UNT Digital Library
EMSL Quarterly Highlights Report: 1st Quarter, Fiscal Year 2010 (open access)

EMSL Quarterly Highlights Report: 1st Quarter, Fiscal Year 2010

This report outlines the science, awards and honors, and publications that resulted during the first quarter of Fiscal Year 2010 at EMSL.
Date: February 4, 2010
Creator: Showalter, Mary Ann; Kathmann, Loel E.; Manke, Kristin L.; Wiley, Julie G. & Reed, Jennifer R.
Object Type: Report
System: The UNT Digital Library
Momentum Transfer by Laser Ablation of Irregularly Shaped Space Debris (open access)

Momentum Transfer by Laser Ablation of Irregularly Shaped Space Debris

Proposals for ground-based laser remediation of space debris rely on the creation of appropriately directed ablation-driven impulses to either divert the fragment or drive it into an orbit with a perigee allowing atmospheric capture. For a spherical fragment, the ablation impulse is a function of the orbital parameters and the laser engagement angle. If, however, the target is irregularly shaped and arbitrarily oriented, new impulse effects come into play. Here we present an analysis of some of these effects.
Date: February 4, 2010
Creator: Liedahl, D A; Libby, S B & Rubenchik, A
Object Type: Article
System: The UNT Digital Library
Discrete Sampling Test Plan for the 200-BP-5 Operable Unit (open access)

Discrete Sampling Test Plan for the 200-BP-5 Operable Unit

The Discrete Groundwater Sampling Project is conducted by the Pacific Northwest National Laboratory (PNNL) on behalf of CH2M HILL Plateau Remediation Company. The project is focused on delivering groundwater samples from proscribed horizons within select groundwater wells residing in the 200-BP-5 Operable Unit (200-BP-5 OU) on the Hanford Site. This document provides the scope, schedule, methodology, and other details of the PNNL discrete sampling effort.
Date: February 4, 2010
Creator: Sweeney, Mark D.
Object Type: Report
System: The UNT Digital Library
Structure, Function, and Evolution of Rice Centromeres (open access)

Structure, Function, and Evolution of Rice Centromeres

The centromere is the most characteristic landmark of eukaryotic chromosomes. Centromeres function as the site for kinetochore assembly and spindle attachment, allowing for the faithful pairing and segregation of sister chromatids during cell division. Characterization of centromeric DNA is not only essential to understand the structure and organization of plant genomes, but it is also a critical step in the development of plant artificial chromosomes. The centromeres of most model eukaryotic species, consist predominantly of long arrays of satellite DNA. Determining the precise DNA boundary of a centromere has proven to be a difficult task in multicellular eukaryotes. We have successfully cloned and sequenced the centromere of rice chromosome 8 (Cen8), representing the first fully sequenced centromere from any multicellular eukaryotes. The functional core of Cen8 spans ~800 kb of DNA, which was determined by chromatin immunoprecipitation (ChIP) using an antibody against the rice centromere-specific H3 histone. We discovered 16 actively transcribed genes distributed throughout the Cen8 region. In addition to Cen8, we have characterized eight additional rice centromeres using the next generation sequencing technology. We discovered four subfamilies of the CRR retrotransposon that is highly enriched in rice centromeres. CRR elements are constitutively transcribed and different CRR subfamilies are …
Date: February 4, 2010
Creator: Jiang, Jiming
Object Type: Report
System: The UNT Digital Library
Time-Resolved Imaging of Material Response Following Laser-Induced Breakdown in the Bulk and Surface of Fused Silica (open access)

Time-Resolved Imaging of Material Response Following Laser-Induced Breakdown in the Bulk and Surface of Fused Silica

Optical components within high energy laser systems are susceptible to laser-induced material modification when the breakdown threshold is exceeded or damage is initiated by pre-existing impurities or defects. These modifications are the result of exposure to extreme conditions involving the generation of high temperatures and pressures and occur on a volumetric scale of the order of a few cubic microns. The response of the material following localized energy deposition, including the timeline of events and the individual processes involved during this timeline, is still largely unknown. In this work, we investigate the events taking place during the entire timeline in both bulk and surface damage in fused silica using a set of time-resolved microscopy systems. These microscope systems offer up to 1 micron spatial resolution when imaging static or dynamic effects, allowing for imaging of the entire process with adequate temporal and spatial resolution. These systems incorporate various pump-probe geometries designed to optimize the sensitivity for detecting individual aspects of the process such as the propagation of shock waves, near-surface material motion, the speed of ejecta, and material transformations. The experimental results indicate that the material response can be separated into distinct phases, some terminating within a few tens of …
Date: February 4, 2010
Creator: Raman, R N; Negres, R A; DeMange, P & Demos, S G
Object Type: Article
System: The UNT Digital Library
A Ferrocene-Based Catecholamide Ligand: the Consequences of Ligand Swivel for Directed Supramolecular Self-Assembly (open access)

A Ferrocene-Based Catecholamide Ligand: the Consequences of Ligand Swivel for Directed Supramolecular Self-Assembly

A ferrocene-based biscatecholamide ligand was prepared and investigated for the formation of metal-ligand supramolecular assemblies with different metals. Reaction with Ge(IV) resulted in the formation of a variety of Ge{sub n}L{sub m} coordination complexes, including [Ge{sub 2}L{sub 3}]{sup 4-} and [Ge{sub 2}L{sub 2}({mu}-OMe){sub 2}]{sup 2-}. The ligand's ability to swivel about the ferrocenyl linker and adopt different conformations accounts for formation of many different Ge{sub n}L{sub m} species. This study demonstrates why conformational ligand rigidity is essential in the rational design and directed self-assembly of supramolecular complexes.
Date: February 4, 2010
Creator: Mugridge, Jeffrey; Fiedler, Dorothea & Raymond, Kenneth
Object Type: Article
System: The UNT Digital Library
Membership of the 111th Congress: A Profile (open access)

Membership of the 111th Congress: A Profile

None
Date: February 4, 2010
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Religious Exemptions for Mandatory Health Care Programs: A Legal Analysis (open access)

Religious Exemptions for Mandatory Health Care Programs: A Legal Analysis

None
Date: February 4, 2010
Creator: Brougher, Cynthia
Object Type: Report
System: The UNT Digital Library
Department of Defense "Section 1207" Security and Stabilization Assistance: Background and Congressional Concerns (open access)

Department of Defense "Section 1207" Security and Stabilization Assistance: Background and Congressional Concerns

This report discusses the section 1207 of the National Defense Authorization Act (NDAA) for Fiscal Year 2006 that provides authority for the Department of Defense (DOD) to transfer to the State Department up to $100 million per fiscal year in defense articles, services, training, or other support for reconstruction, stabilization, and security activities in foreign countries. The 111th Congress must decide whether to extend Section 1207, which expires on September 30, 2009. This report discusses what issues Congress must take into consideration when making this decision.
Date: February 4, 2010
Creator: Serafino, Nina M.
Object Type: Report
System: The UNT Digital Library
Foreign Investment, CFIUS, and Homeland Security: An Overview (open access)

Foreign Investment, CFIUS, and Homeland Security: An Overview

This report gives a brief overview of P.L. 110-49, the Foreign Investment and National Security Act of 2007. Although both the President and Congress are directly involved in formulating the scope and direction of U.S. foreign investment policy, this law broadens Congress's oversight role; it also explicitly includes the areas of homeland security and critical infrastructure as separately-identifiable components of national security that the President must consider when evaluating the national security implications of a foreign investment transaction.
Date: February 4, 2010
Creator: Jackson, James K.
Object Type: Report
System: The UNT Digital Library
Military Construction, Veterans Affairs, and Related Agencies: FY2010 Appropriations (open access)

Military Construction, Veterans Affairs, and Related Agencies: FY2010 Appropriations

This report discusses the President's Fiscal Year (FY) 2011 budget request for the Military Construction, Veterans Affairs, and Related Agencies appropriations bill, which provides funding for the planning, design, construction, alteration, and improvement of facilities used by active and reserve military components worldwide.
Date: February 4, 2010
Creator: Else, Daniel H.; Scott, Christine & Panangala, Sidath V.
Object Type: Report
System: The UNT Digital Library
The 2009 Asia Pacific Economic Cooperation (APEC) Meetings and U.S. Trade Policy in Asia (open access)

The 2009 Asia Pacific Economic Cooperation (APEC) Meetings and U.S. Trade Policy in Asia

This report discusses the Asia Pacific Economic Cooperation forum (APEC) approach to trade liberalization, results of the 2009 meetings in Singapore, APEC and U.S. trade policy in Asia as well as other issues regarding APEC.
Date: February 4, 2010
Creator: Martin, Michael F.
Object Type: Report
System: The UNT Digital Library
Financial Market Supervision: European Perspectives (open access)

Financial Market Supervision: European Perspectives

This report addresses the European perspectives on a number of proposals that are being advanced for financial oversight and regulation in Europe. The European experience may be instructive because financial markets in Europe are well developed, European firms often are competitors of U.S. firms, and European governments have faced severe problems of integration and consistency across the various financial structures that exist in Europe.
Date: February 4, 2010
Creator: Jackson, James K.
Object Type: Report
System: The UNT Digital Library
Nonproliferation and Threat Reduction Assistance: U.S. Programs in the Former Soviet Union (open access)

Nonproliferation and Threat Reduction Assistance: U.S. Programs in the Former Soviet Union

This report focuses on funding for threat reduction and nonproliferation programs in the states of the former Soviet Union. Although the United States has expanded its efforts to programs that seek to assist other nations in securing nuclear, biological, and chemical weapons materials, the overwhelming majority of U.S. funds still support programs in the former Soviet states. Nevertheless, because U.S. funding and focus has shifted in recent years, this report provides only a partial view of U.S. nonproliferation and threat reduction programs.
Date: February 4, 2010
Creator: Woolf, Amy F.
Object Type: Report
System: The UNT Digital Library
Agriculture in Pending U.S. Free Trade Agreements with Colombia, Panama, and South Korea (open access)

Agriculture in Pending U.S. Free Trade Agreements with Colombia, Panama, and South Korea

This report discusses pending U.S. free trade agreements (FTAs) with South Korea, Colombia, and Panama. The bills to implement these agreements will now be debated under trade promotion authority, or fast-track rules, designed to expedite congressional consideration. The report includes an overview of agricultural issues regarding FTAs and pending FTA partners, as well as a closer breakdown of the specific issues for each of the countries.
Date: February 4, 2010
Creator: Jurenas, Remy
Object Type: Report
System: The UNT Digital Library
Financial Services and General Government (FSGG): FY2010 Appropriations (open access)

Financial Services and General Government (FSGG): FY2010 Appropriations

This report discuses the Financial Services and General Government (FSGG) appropriations bill, which provides funding for two of the three branches of the federal government, a city government, and 26 independent agencies with a range of functions and encompasses a number of potentially controversial issues.
Date: February 4, 2010
Creator: Hatch, Garrett
Object Type: Report
System: The UNT Digital Library
Sudan: The Crisis in Darfur and Status of the North-South Peace Agreement (open access)

Sudan: The Crisis in Darfur and Status of the North-South Peace Agreement

This report discusses the history of Sudan's civil unrest and the subsequent crisis in Darfur, as well as United Nations and United States aid and peacekeeping efforts, and current related policy under the Obama Administration.
Date: February 4, 2010
Creator: Dagne, Ted
Object Type: Report
System: The UNT Digital Library
U.S. Trade and Investment Relationship with Sub-Saharan Africa: The African Growth and Opportunity Act (open access)

U.S. Trade and Investment Relationship with Sub-Saharan Africa: The African Growth and Opportunity Act

This report presents perspectives on African economic trends and provides an overview of U.S. trade and investment flows with sub-Saharan Africa (SSA). It discusses the provisions of the African Growth and Opportunity Act (AGOA) and the changes that have occurred since its enactment. It concludes with a brief discussion of issues of congressional interest.
Date: February 4, 2010
Creator: Jones, Vivian C.
Object Type: Report
System: The UNT Digital Library
U.S. Nuclear Cooperation with India: Issues for Congress (open access)

U.S. Nuclear Cooperation with India: Issues for Congress

This report discusses the United States' relationship with India as it relates to nuclear arsenals and nuclear nonproliferation policies. The report includes background information on India's nuclear history and nuclear weapons-specific U.S. legislation.
Date: February 4, 2010
Creator: Kerr, Paul K.
Object Type: Report
System: The UNT Digital Library
The Exon-Florio National Security Test for Foreign Investment (open access)

The Exon-Florio National Security Test for Foreign Investment

This report covers the recent background of the Exon-Florio provision with special regards to issues faced in the 112th Congress. The Exon-Florio provision grants the President the authority to block proposed or pending foreign acquisitions of "persons engaged in interstate commerce in the United States" that threaten to impair the national security.
Date: February 4, 2010
Creator: Jackson, James K.
Object Type: Report
System: The UNT Digital Library
Kenya: Current Conditions and the Challenges Ahead (open access)

Kenya: Current Conditions and the Challenges Ahead

This report discusses the current political conditions of Kenya, which has long been an important ally of the United States. The report focuses particularly on the December 2007 elections, which many international observers have declared as rigged and deeply flawed. The report also discusses violence that erupted once election results were announced, as well as U.S. efforts to urge Kenya toward election reforms.
Date: February 4, 2010
Creator: Dagne, Ted
Object Type: Report
System: The UNT Digital Library