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100-N Area Strontium-90 Treatability Demonstration Project: Food Chain Transfer Studies for Phytoremediation Along the 100-N Columbia River Riparian Zone (open access)

100-N Area Strontium-90 Treatability Demonstration Project: Food Chain Transfer Studies for Phytoremediation Along the 100-N Columbia River Riparian Zone

Strontium-90 (90Sr) exceeds the U.S. Environmental Protection Agency’s drinking water standards for groundwater (8 picocuries/L) by as much as a factor of 1000 at several locations within the Hanford 100-N Area and along the 100-N Area Columbia River shoreline). Phytoextraction, a managed remediation technology in which plants or integrated plant/rhizosphere systems are employed to phytoextract and/or sequester 90Sr, is being considered as a potential remediation system along the riparian zone of the Columbia River as part of a treatment train that includes an apatite barrier to immobilize groundwater transport of 90Sr. Phytoextraction would employ coyote willow (Salix exigua) to extract 90Sr from the vadose zone soil and aquifer sediments (phytoextraction) and filter 90Sr (rhizofiltration) from the shallow groundwater along the riparian zone of the Columbia River. The stem and foliage of coyote willows accumulating 90Sr may present not only a mechanism to remove the contaminant but also can be viewed as a source of nutrition for natural herbivores, therefore becoming a potential pathway for the isotope to enter the riparian food chain. Engineered barriers such as large and small animal fencing constructed around the field plot will control the intrusion of deer, rodents, birds, and humans. These efforts, however, will …
Date: April 1, 2009
Creator: Fellows, Robert J.; Fruchter, Jonathan S. & Driver, Crystal J.
System: The UNT Digital Library
2008 Lobbying Disclosure: Observations on Lobbyists' Compliance with Disclosure Requirements (open access)

2008 Lobbying Disclosure: Observations on Lobbyists' Compliance with Disclosure Requirements

A letter report issued by the Government Accountability Office with an abstract that begins "The Honest Leadership and Open Government Act (HLOGA) of 2007 amended the Lobbying Disclosure Act of 1995 by doubling the frequency of lobbyists' reporting and increasing criminal and civil penalties. This is GAO's second report in response to the Act's requirement for GAO to annually (1) determine the extent to which lobbyists can demonstrate compliance with the Act by providing support for information on their registrations and reports, (2) describe challenges identified by lobbyists to complying with the Act, and (3) describe the resources and authorities available to the U.S. Attorney's Office for the District of Columbia's efforts to enforce the Act. For this report, GAO placed increased emphasis on written documentation to support disclosure reports. GAO reviewed a random sample of 100 lobbyist disclosure reports filed during the first three quarters of calendar year 2008. GAO also selected a random sample of 100 reports of federal political contributions, filed for the first time, for mid-calendar-year 2008. This methodology allowed GAO to generalize the sample results to the populations of 40,169 lobbying activity disclosure reports and 6,048 reports with contributions filed. GAO met with lobbyists regarding …
Date: April 1, 2009
Creator: United States. Government Accountability Office.
System: The UNT Digital Library
Advanced Simulation and Computing FY09-FY10 Implementation Plan Volume 2, Rev. 1 (open access)

Advanced Simulation and Computing FY09-FY10 Implementation Plan Volume 2, Rev. 1

The Stockpile Stewardship Program (SSP) is a single, highly integrated technical program for maintaining the surety and reliability of the U.S. nuclear stockpile. The SSP uses past nuclear test data along with current and future non-nuclear test data, computational modeling and simulation, and experimental facilities to advance understanding of nuclear weapons. It includes stockpile surveillance, experimental research, development and engineering programs, and an appropriately scaled production capability to support stockpile requirements. This integrated national program requires the continued use of current facilities and programs along with new experimental facilities and computational enhancements to support these programs. The Advanced Simulation and Computing Program (ASC) is a cornerstone of the SSP, providing simulation capabilities and computational resources to support the annual stockpile assessment and certification, to study advanced nuclear weapons design and manufacturing processes, to analyze accident scenarios and weapons aging, and to provide the tools to enable stockpile Life Extension Programs (LEPs) and the resolution of Significant Finding Investigations (SFIs). This requires a balanced resource, including technical staff, hardware, simulation software, and computer science solutions. In its first decade, the ASC strategy focused on demonstrating simulation capabilities of unprecedented scale in three spatial dimensions. In its second decade, ASC is focused …
Date: April 1, 2009
Creator: Kissel, L
System: The UNT Digital Library
Aerosol penetration of leak pathways : an examination of the available data and models. (open access)

Aerosol penetration of leak pathways : an examination of the available data and models.

Data and models of aerosol particle deposition in leak pathways are described. Pathways considered include capillaries, orifices, slots and cracks in concrete. The Morewitz-Vaughan criterion for aerosol plugging of leak pathways is shown to be applicable only to a limited range of particle settling velocities and Stokes numbers. More useful are sampling efficiency criteria defined by Davies and by Liu and Agarwal. Deposition of particles can be limited by bounce from surfaces defining leak pathways and by resuspension of particles deposited on these surfaces. A model of the probability of particle bounce is described. Resuspension of deposited particles can be triggered by changes in flow conditions, particle impact on deposits and by shock or vibration of the surfaces. This examination was performed as part of the review of the AP1000 Standard Combined License Technical Report, APP-GW-GLN-12, Revision 0, 'Offsite and Control Room Dose Changes' (TR-112) in support of the USNRC AP1000 Standard Combined License Pre-Application Review.
Date: April 1, 2009
Creator: Powers, Dana Auburn
System: The UNT Digital Library
Analysis of cavern stability at the Bryan Mound SPR site. (open access)

Analysis of cavern stability at the Bryan Mound SPR site.

This report presents computational analyses that simulate the structural response of caverns at the Strategic Petroleum Reserve Bryan Mound site. The cavern field comprises 20 caverns. Five caverns (1, 2, 4, and 5; 3 was later plugged and abandoned) were acquired from industry and have unusual shapes and a history dating back to 1946. The other 16 caverns (101-116) were leached according to SPR standards in the mid-1980s and have tall cylindrical shapes. The history of the caverns and their shapes are simulated in a 3-D geomechanics model of the site that predicts deformations, strains, and stresses. Future leaching scenarios due to oil drawdowns using fresh water are also simulated by increasing the volume of the caverns. Cavern pressures are varied in the model to capture operational practices in the field. The results of the finite element model are interpreted to provide information on the current and future status of subsidence, well integrity, and cavern stability. The most significant result in this report is relevant to caverns 1, 2, and 5. The caverns have non-cylindrical shapes and have potential regions where the surrounding salt may be damaged during workover procedures. During a workover the normal cavern operating pressure is lowered …
Date: April 1, 2009
Creator: Ehgartner, Brian L. & Sobolik, Steven Ronald
System: The UNT Digital Library
Annual Technical Progress Report of Radioisotope Power Systems Materials Production and Technology Program Tasks for October 1, 2007 Through September 30,2008 (open access)

Annual Technical Progress Report of Radioisotope Power Systems Materials Production and Technology Program Tasks for October 1, 2007 Through September 30,2008

The Office of Radioisotope Power Systems (RPS) of the Department of Energy (DOE) provides RPS for applications where conventional power systems are not feasible. For example, radioisotope thermoelectric generators were supplied by the DOE to the National Aeronautics and Space Administration (NASA) for deep space missions including the Cassini Mission launched in October of 1997 to study the planet Saturn. For the Cassini Mission, ORNL produced carbon-bonded carbon fiber (CBCF) insulator sets, iridium alloy blanks and foil, and clad vent sets (CVS) used in the generators. The Oak Ridge National Laboratory (ORNL) has been involved in developing materials and technology and producing components for the DOE for more than three decades. This report reflects program guidance from the Office of RPS for fiscal year (FY) 2008. Production activities for prime quality (prime) CBCF insulator sets, iridium alloy blanks and foil, and CVS are summarized in this report. Technology activities are also reported that were conducted to improve the manufacturing processes, characterize materials, or to develop information for new RPS.
Date: April 1, 2009
Creator: King, James F
System: The UNT Digital Library
ART CCIM PHASE II-A OFF-GAS SYSTEM EVALUATION TEST REPORT (open access)

ART CCIM PHASE II-A OFF-GAS SYSTEM EVALUATION TEST REPORT

AREVA Federal Services (AFS) is performing a multi-year, multi-phase Advanced Remediation Technologies (ART) project, sponsored by the U.S. Department of Energy (DOE), to evaluate the feasibility and benefits of replacing the existing joule-heated melter (JHM) used to treat high level waste (HLW) in the Defense Waste Processing Facility (DWPF) at the Savannah River Site with a cold crucible induction melter (CCIM). The AFS ART CCIM project includes several collaborators from AREVA subsidiaries, French companies, and DOE national laboratories. The Savannah River National Laboratory and the Commissariat a l’Energie Atomique (CEA) have performed laboratory-scale studies and testing to determine a suitable, high-waste-loading glass matrix. The Idaho National Laboratory (INL) and CEA are performing CCIM demonstrations at two different pilot scales to assess CCIM design and operation for treating SRS sludge wastes that are currently being treated in the DWPF. SGN is performing engineering studies to validate the feasibility of retrofitting CCIM technology into the DWPF Melter Cell. The long-term project plan includes more lab-testing, pilot- and large-scale demonstrations, and engineering activities to be performed during subsequent project phases. A simulant of the DWPF SB4 feed was successfully fed and melted in a small pilot-scale CCIM system during two test series. The …
Date: April 1, 2009
Creator: Soelberg, Nick
System: The UNT Digital Library
Assessment of Biomass Resources in Liberia (open access)

Assessment of Biomass Resources in Liberia

Biomass resources meet about 99.5% of the Liberian population?s energy needs so they are vital to basic welfare and economic activity. Already, traditional biomass products like firewood and charcoal are the primary energy source used for domestic cooking and heating. However, other more efficient biomass technologies are available that could open opportunities for agriculture and rural development, and provide other socio-economic and environmental benefits.The main objective of this study is to estimate the biomass resources currently and potentially available in the country and evaluate their contribution for power generation and the production of transportation fuels. It intends to inform policy makers and industry developers of the biomass resource availability in Liberia, identify areas with high potential, and serve as a base for further, more detailed site-specific assessments.
Date: April 1, 2009
Creator: Milbrandt, A.
System: The UNT Digital Library
Assessment of the Energy Impacts of Outside Air in the Commercial Sector (open access)

Assessment of the Energy Impacts of Outside Air in the Commercial Sector

The enormous quantity of energy consumed by U.S. commercial buildings places a significant burden on the energy supply and is a potential source of economic strain. To address this, the DOE Building Technologies Program has established the goal of developing market-viable zero energy buildings by 2025. This study focuses on the effects of outside air, and considers various outside air sources, types of building construction, building subsectors, and climates. Based on the information about energy consumption attributed to outside air, it identifies topics for further research that have the greatest potential to achieve energy savings.
Date: April 1, 2009
Creator: Benne, K.; Griffith, B.; Long, N.; Torcellini, P.; Crawley, D. & Logee, T.
System: The UNT Digital Library
Assistance to North Korea (open access)

Assistance to North Korea

This report summarizes the U.S. assistance to North Korea.
Date: April 1, 2009
Creator: Manyin, Mark E. & Nikitin, Mary Beth
System: The UNT Digital Library
An Audit Report on Ethics Policies for Trustee Investing Practices at the Employees Retirement System, the Teacher Retirement System, and The University of Texas Investment Management Company (open access)

An Audit Report on Ethics Policies for Trustee Investing Practices at the Employees Retirement System, the Teacher Retirement System, and The University of Texas Investment Management Company

Report of the Texas State Auditor's Office related to the ethics policies for trustee investing practices of the Employees Retirement System, the Teacher Retirement System, and The University of Texas Investment Management Company (investing entities), which must be consistent with applicable statutory requirements.
Date: April 2009
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on Financial Transactions Associated with Hurricane Katrina and Hurricane Rita at the Lamar Higher Education Institutions and the Texas State University System (open access)

An Audit Report on Financial Transactions Associated with Hurricane Katrina and Hurricane Rita at the Lamar Higher Education Institutions and the Texas State University System

Report of the Texas State Auditor's Office related to determining how the Lamar higher education institutions calculated and supported expenditure and revenue losses attributable to Hurricane Katrina and Hurricane Rita, and how the Texas State University System approved and allocated emergency funds.
Date: April 2009
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on Performance Measures at the Board of Tax Professional Examiners (open access)

An Audit Report on Performance Measures at the Board of Tax Professional Examiners

Report of the Texas State Auditor's Office related to determining whether the Board of Tax Professional Examiners accurately reports selected key performance measures to the Automated Budget and Evaluation System of Texas (ABEST), and has adequate control systems in place over the collecting, calculating, and reporting of selected key performance measures.
Date: April 2009
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on Performance Measures at the Bond Review Board (open access)

An Audit Report on Performance Measures at the Bond Review Board

Report of the Texas State Auditor's Office related to determining whether the Bond Review Board accurately reported selected key performance measures to the Automated Budget and Evaluation System of Texas (ABEST), and had adequate control systems in place over the collecting, calculating, and reporting of selected key performance measures.
Date: April 2009
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on Performance Measures at the Office of Public Insurance Counsel (open access)

An Audit Report on Performance Measures at the Office of Public Insurance Counsel

Report of the Texas State Auditor's Office related to determining whether the Office of Public Insurance Counsel (OPIC) accurately reported selected key performance measures to ABEST and had adequate control systems in place over the collecting, calculating, and reporting of selected key performance measures.
Date: April 2009
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on Performance Measures at the Veterans Commission (open access)

An Audit Report on Performance Measures at the Veterans Commission

Report of the Texas State Auditor's Office related to determining whether the Veterans Commission is accurately reporting selected key performance measures to ABEST and has adequate control systems over the collection, calculation, and reporting of selected key performance measures.
Date: April 2009
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on the Court of Criminal Appeals' Administration of Grant Funds from the Judicial and Court Personnel Training Fund (open access)

An Audit Report on the Court of Criminal Appeals' Administration of Grant Funds from the Judicial and Court Personnel Training Fund

Report of the Texas State Auditor's Office related to determining whether the Court of Criminal Appeals has processes that provide reasonable assurance that grant funds from the Judiciary and Court Personnel Training Fund are being awarded and used in accordance with Texas Government Code requirements, the terms of grant agreements, administrative and Court rules, and Court policy; and determining the status of implementation of recommendations made by MTG Management Consultants, L.L.C.
Date: April 2009
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
BigBOSS: The Ground-Based Stage IV BAO Experiment (open access)

BigBOSS: The Ground-Based Stage IV BAO Experiment

The BigBOSS experiment is a proposed DOE-NSF Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with an all-sky galaxy redshift survey. The project is designed to unlock the mystery of dark energy using existing ground-based facilities operated by NOAO. A new 4000-fiber R=5000 spectrograph covering a 3-degree diameter field will measure BAO and redshift space distortions in the distribution of galaxies and hydrogen gas spanning redshifts from 0.2< z< 3.5. The Dark Energy Task Force figure of merit (DETF FoM) for this experiment is expected to be equal to that of a JDEM mission for BAO with the lower risk and cost typical of a ground-based experiment.
Date: April 1, 2009
Creator: Schlegel, David; Bebek, Chris; Heetderks, Henry; Ho, Shirley; Lampton, Michael; Levi, Michael et al.
System: The UNT Digital Library
Bosnia: Current Issues and U.S. Policy (open access)

Bosnia: Current Issues and U.S. Policy

This report presents an overview of the economic and political situation in Bosnia. It starts out by describing the current situation, the negotiations on forming a new central government, the international role in Bosnia, and the last part discusses the implications of U.S. policy.
Date: April 1, 2009
Creator: Woehrel, Steven
System: The UNT Digital Library
"Bottom-up" meets "top-down" : self-assembly to direct manipulation of nanostructures on length scales from atoms to microns. (open access)

"Bottom-up" meets "top-down" : self-assembly to direct manipulation of nanostructures on length scales from atoms to microns.

This document is the final SAND Report for the LDRD Project 102660 - 'Bottomup' meets 'top-down': Self-assembly to direct manipulation of nanostructures on length scales from atoms to microns - funded through the Strategic Partnerships investment area as part of the National Institute for Nano-Engineering (NINE) project.
Date: April 1, 2009
Creator: Swartzentruber, Brian Shoemaker
System: The UNT Digital Library
Budget Reconciliation Measures Enacted Into Law: 1980-2008 (open access)

Budget Reconciliation Measures Enacted Into Law: 1980-2008

This report identifies and briefly summarizes the 19 budget reconciliation measures enacted into law during the period covering 1980, when reconciliation procedures first were used by both chambers, through 2008, the last year of the 110th Congress.
Date: April 1, 2009
Creator: Keith, Robert
System: The UNT Digital Library
Clutter in the GMTI range-velocity map. (open access)

Clutter in the GMTI range-velocity map.

Ground Moving Target Indicator (GMTI) radar maps echo data to range and range-rate, which is a function of a moving target's velocity and its position within the antenna beam footprint. Even stationary clutter will exhibit an apparent motion spectrum and can interfere with moving vehicle detections. Consequently it is very important for a radar to understand how stationary clutter maps into radar measurements of range and velocity. This mapping depends on a wide variety of factors, including details of the radar motion, orientation, and the 3-D topography of the clutter.
Date: April 1, 2009
Creator: Doerry, Armin Walter
System: The UNT Digital Library
Comparison of Hydrogen and Propane Fuels (Brochure) (open access)

Comparison of Hydrogen and Propane Fuels (Brochure)

Factsheet comparing the chemical, physical, and thermal properties of hydrogen and propane, designed to facilitate an understanding of the differences and similarites of the two fuels.
Date: April 1, 2009
Creator: unknown
System: The UNT Digital Library
Connections: Lyndon B. Johnson in San Marcos (open access)

Connections: Lyndon B. Johnson in San Marcos

Report detailing President Lyndon B. Johnson's time attending Texas State University in San Marcos.
Date: April 2009
Creator: Texas State University
System: The Portal to Texas History