2009 Pilot Scale Fluidized Bed Steam Reforming Testing Using the Thor (Thermal Organic Reduction) Process: Analytical Results for Tank 48h Organic Destruction - 10408 (open access)

2009 Pilot Scale Fluidized Bed Steam Reforming Testing Using the Thor (Thermal Organic Reduction) Process: Analytical Results for Tank 48h Organic Destruction - 10408

The Savannah River Site (SRS) must empty the contents of Tank 48H, a 1.3 million gallon Type IIIA HLW storage tank, to return this tank to service. The tank contains organic compounds, mainly potassium tetraphenylborate that cannot be processed downstream until the organic components are destroyed. The THOR{reg_sign} Treatment Technologies (TTT) Fluidized Bed Steam Reforming (FBSR) technology, herein after referred to as steam reforming, has been demonstrated to be a viable process to remove greater than 99.9% of the organics from Tank 48H during various bench scale and pilot scale tests. These demonstrations were supported by Savannah River Remediation (SRR) and the Department of Energy (DOE) has concurred with the SRR recommendation to proceed with the deployment of the FBSR technology to treat the contents of Tank 48H. The Savannah River National Laboratory (SRNL) developed and proved the concept with non-radioactive simulants for SRR beginning in 2003. By 2008, several pilot scale campaigns had been completed and extensive crucible testing and bench scale testing were performed in the SRNL Shielded Cells using Tank 48H radioactive sample. SRNL developed a Tank 48H non-radioactive simulant complete with organic compounds, salt, and metals characteristic of those measured in a sample of the radioactive …
Date: December 28, 2009
Creator: Williams, M. R.; Jantzen, Carol M.; Burket, P. R.; Crawford, C. L.; Daniel, W. E.; Aponte, C. et al.
Object Type: Article
System: The UNT Digital Library
The Effects on U.S. Farm Workers of an Agricultural Guest Worker Program (open access)

The Effects on U.S. Farm Workers of an Agricultural Guest Worker Program

This report provides an overview of the effects on U.S. farm workers of an agricultural guest worker program.
Date: December 28, 2009
Creator: Levine, Linda
Object Type: Report
System: The UNT Digital Library
Final Technical Report (open access)

Final Technical Report

The Center of Excellence for Hazardous Materials Management award was used to establish the organization and initiate investigations of hazardous waste issues along the U.S.-Mexico border. Scientific investigations conducted during the execution of this grant contributed significant data and established new sampling protocols to the dimension, frequency and severity of hazardous materials (e.g., heavy metals) along the U.S.-Mexico border. Additionally, new protocols and assessments with distinct Homeland Security implications were embedded thus establishing a baseline that will be significant for related investigations in the future.
Date: December 28, 2009
Creator: Lynn, Douglas C. & Restani, Marco, Ph.D
Object Type: Report
System: The UNT Digital Library
Medicare Managed Care: Observations about Medicare Cost Plans (open access)

Medicare Managed Care: Observations about Medicare Cost Plans

A letter report issued by the Government Accountability Office with an abstract that begins "Medicare cost plans--managed care plans paid based on the reasonable costs of delivering Medicare-covered services--enroll a small number of beneficiaries compared to Medicare Advantage (MA), Medicare's managed care program in which the plans accept financial risk if their costs exceed fixed payments received for each enrolled beneficiary. Despite the small enrollment, industry representatives stated that cost plans provide a managed care option in areas that traditionally had few or no MA plans. Current law allows existing cost plans to continue operating unless specific MA plans of sufficient enrollment serve the same area. In such cases, the cost plan must discontinue serving that area beginning in 2011. The Medicare Improvements for Patients and Providers Act of 2008 (MIPPA) required the Government Accountability Office (GAO) to examine issues related to the conversion of Medicare cost plans to MA plans. In response, GAO (1) determined the MA options available to beneficiaries in cost plans, (2) described key differences for beneficiaries between cost plans, MA plans, and Medicare fee-for-service (FFS); (3) determined the extent to which organizations offering cost plans also offer MA plans; and (4) described concerns cost plans …
Date: December 28, 2009
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
SECONDARY WASTE/ETF (EFFLUENT TREATMENT FACILITY) PRELIMINARY PRE-CONCEPTUAL ENGINEERING STUDY (open access)

SECONDARY WASTE/ETF (EFFLUENT TREATMENT FACILITY) PRELIMINARY PRE-CONCEPTUAL ENGINEERING STUDY

This pre-conceptual engineering study is intended to assist in supporting the critical decision (CD) 0 milestone by providing a basis for the justification of mission need (JMN) for the handling and disposal of liquid effluents. The ETF baseline strategy, to accommodate (WTP) requirements, calls for a solidification treatment unit (STU) to be added to the ETF to provide the needed additional processing capability. This STU is to process the ETF evaporator concentrate into a cement-based waste form. The cementitious waste will be cast into blocks for curing, storage, and disposal. Tis pre-conceptual engineering study explores this baseline strategy, in addition to other potential alternatives, for meeting the ETF future mission needs. Within each reviewed case study, a technical and facility description is outlined, along with a preliminary cost analysis and the associated risks and benefits.
Date: December 28, 2009
Creator: May, Thomas H.; Gehner, Phillip D.; Stegen, Gary; Hymas, Jay; Pajunen, Al; Sexton, Rich et al.
Object Type: Report
System: The UNT Digital Library
Survival Rates of Juvenile Salmonids Passing Through the Bonneville Dam and Spillway in 2008 (open access)

Survival Rates of Juvenile Salmonids Passing Through the Bonneville Dam and Spillway in 2008

This report describes a 2008 acoustic telemetry survival study conducted by the Pacific Northwest National Laboratory for the Portland District of the U.S. Army Corps of Engineers. The study estimated the survival of juvenile Chinook salmon and steelhead passing Bonneville Dam (BON) and its spillway. Of particular interest was the relative survival of smolts detected passing through end spill bays 1-3 and 16-18, which had deep flow deflectors immediately downstream of spill gates, versus survival of smolts passing middle spill bays 4-15, which had shallow flow deflectors.
Date: December 28, 2009
Creator: Ploskey, Gene R.; Weiland, Mark A.; Faber, Derrek M.; Deng, Zhiqun; Johnson, Gary E.; Hughes, James S. et al.
Object Type: Report
System: The UNT Digital Library
Systems Analysis of an Advanced Nuclear Fuel Cycle Based on a Modified UREX+3c Process (open access)

Systems Analysis of an Advanced Nuclear Fuel Cycle Based on a Modified UREX+3c Process

The research described in this report was performed under a grant from the U.S. Department of Energy (DOE) to describe and compare the merits of two advanced alternative nuclear fuel cycles -- named by this study as the “UREX+3c fuel cycle” and the “Alternative Fuel Cycle” (AFC). Both fuel cycles were assumed to support 100 1,000 MWe light water reactor (LWR) nuclear power plants operating over the period 2020 through 2100, and the fast reactors (FRs) necessary to burn the plutonium and minor actinides generated by the LWRs. Reprocessing in both fuel cycles is assumed to be based on the UREX+3c process reported in earlier work by the DOE. Conceptually, the UREX+3c process provides nearly complete separation of the various components of spent nuclear fuel in order to enable recycle of reusable nuclear materials, and the storage, conversion, transmutation and/or disposal of other recovered components. Output of the process contains substantially all of the plutonium, which is recovered as a 5:1 uranium/plutonium mixture, in order to discourage plutonium diversion. Mixed oxide (MOX) fuel for recycle in LWRs is made using this 5:1 U/Pu mixture plus appropriate makeup uranium. A second process output contains all of the recovered uranium except the …
Date: December 28, 2009
Creator: Johnson, E. R. & Best, R. E.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: GA-0752 (open access)

Texas Attorney General Opinion: GA-0752

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Whether multiple contiguous lots may be claimed as part of a homestead exemption under section 11.13(j) of the Tax Code (RQ-0808-GA)
Date: December 28, 2009
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: GA-0753 (open access)

Texas Attorney General Opinion: GA-0753

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Whether a peace officer who has taken a person into custody under chapter 573 of the Health and Safety Code may be required to transport that individual to a medical facility for evaluation prior to taking that person to a mental health facility (RQ-0809-GA)
Date: December 28, 2009
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Worker Environment Beryllium Characterization Study (open access)

Worker Environment Beryllium Characterization Study

This report summarizes the conclusion of regular monitoring of occupied buildings at the Nevada Test Site and North Las Vegas facility to determine the extent of beryllium (Be) contamination in accordance with Judgment of Needs 6 of the August 14, 2003, “Minnema Report.”
Date: December 28, 2009
Creator: NSTec Environment, Safety, Health & Quality
Object Type: Report
System: The UNT Digital Library
Piracy off the Horn of Africa (open access)

Piracy off the Horn of Africa

This report discusses recent (2008-2009) pirate attacks on vessels, including United States vessels, in the waters off the Horn of Africa. The Horn of Africa is sometimes called the Somali Peninsula and includes the nations of Eritrea, Djibouti, Ethiopia, and Somalia. This report explores reasons behind the increased number of pirate attacks in recent years, as well as what efforts are being taken to combat said attacks, including those by the 111th Congress and President Obama and his Administration.
Date: November 28, 2009
Creator: Ploch, Lauren; Blanchard, Christopher M.; O'Rourke, Ronald; Mason, R. Chuck & King, Rawle O.
Object Type: Report
System: The UNT Digital Library
401(k) Plans: Several Factors Can Diminish Retirement Savings, but Automatic Enrollment Shows Promise for Increasing Participation and Savings (open access)

401(k) Plans: Several Factors Can Diminish Retirement Savings, but Automatic Enrollment Shows Promise for Increasing Participation and Savings

Testimony issued by the Government Accountability Office with an abstract that begins "Over the past 25 years, the number of defined benefit (DB) plans has declined while the number of defined contribution (DC) plans has increased. Today, DC plans are the dominant type of employer-sponsored retirement plans, with more than 49 million U.S. workers participating in them. 401(k) plans currently cover over 85 percent of active DC plan participants and are the fastest growing type of employer-sponsored pension plan. Given these shifts in pension coverage, workers are increasingly relying on 401(k) plans for their pension income. Recently, policy makers have focused attention on the ability of 401(k) plans to provide participants with adequate retirement income and the challenges that arise as 401(k) plans become the predominant retirement savings plan for employees. As a result, GAO was asked to report on (1) challenges to building and maintaining of savings in 401(k) plans, and (2) recent measures to improve 401(k) participation and savings levels."
Date: October 28, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Alternative Waste Forms for Electro-Chemical Salt Waste (open access)

Alternative Waste Forms for Electro-Chemical Salt Waste

This study was undertaken to examine alternate crystalline (ceramic/mineral) and glass waste forms for immobilizing spent salt from the Advanced Fuel Cycle Initiative (AFCI) electrochemical separations process. The AFCI is a program sponsored by U.S. Department of Energy (DOE) to develop and demonstrate a process for recycling spent nuclear fuel (SNF). The electrochemical process is a molten salt process for the reprocessing of spent nuclear fuel in an electrorefiner and generates spent salt that is contaminated with alkali, alkaline earths, and lanthanide fission products (FP) that must either be cleaned of fission products or eventually replaced with new salt to maintain separations efficiency. Currently, these spent salts are mixed with zeolite to form sodalite in a glass-bonded waste form. The focus of this study was to investigate alternate waste forms to immobilize spent salt. On a mole basis, the spent salt is dominated by alkali and Cl with minor amounts of alkaline earth and lanthanides. In the study reported here, we made an effort to explore glass systems that are more compatible with Cl and have not been previously considered for use as waste forms. In addition, alternate methods were explored with the hope of finding a way to produce …
Date: October 28, 2009
Creator: Crum, Jarrod V.; Sundaram, S. K.; Riley, Brian J.; Matyas, Josef; Arreguin, Shelly A. & Vienna, John D.
Object Type: Report
System: The UNT Digital Library
Congressional Salaries and Allowances (open access)

Congressional Salaries and Allowances

This report provides basic information on congressional salaries and allowances. First, the report briefly summarizes the current salary of Members of Congress, limits on their outside earned income and honoraria, and applicable health insurance and retirement benefits.
Date: October 28, 2009
Creator: Brudnick, Ida A.
Object Type: Report
System: The UNT Digital Library
Development of Designer Diamond Technology for High Pressure High Temperature Experiments in Support of Stockpile Stewardship Program (open access)

Development of Designer Diamond Technology for High Pressure High Temperature Experiments in Support of Stockpile Stewardship Program

The role of nitrogen in the fabrication of designer diamond was systematically investigated by adding controlled amount of nitrogen in hydrogen/methane/oxygen plasma. This has led to a successful recipe for reproducible fabrication of designer diamond anvils for high-pressure high-temperature research in support of stockpile stewardship program. In the three-year support period, several designer diamonds fabricated with this new growth chemistry were utilized in high-pressure experiments at UAB and Lawrence Livermore National Laboratory. The designer diamond anvils were utilized in high-pressure studies on heavy rare earth metals, high pressure melting studies on metals, and electrical resistance measurements on iron-based layered superconductors under high pressures. The growth chemistry developed under NNSA support can be adapted for commercial production of designer diamonds.
Date: October 28, 2009
Creator: Vohra, Yogesh, K.
Object Type: Report
System: The UNT Digital Library

Duty Cycle Analysis & Tools: Maximizing Vehicle Performance (Presentation)

Shows that the benefits of using hybrid vehicle trucks in fleets depends on the duty cycle, or how the vehicles will be driven (e.g., stop and go) over a particular route (e.g., urban or rural).
Date: October 28, 2009
Creator: Walkowicz, K.
Object Type: Presentation
System: The UNT Digital Library
Expanding the Scope of the Public Performance Right for Sound Recordings: A Legal Analysis of the Performance Rights Act (H.R. 848 and S. 379) (open access)

Expanding the Scope of the Public Performance Right for Sound Recordings: A Legal Analysis of the Performance Rights Act (H.R. 848 and S. 379)

This report provides information about a Legal Analysis of the Performance Rights Act of 2007 (H.R. 4789 and S. 2500) on Expanding the Scope of the Public Performance Right for Sound Recordings.
Date: October 28, 2009
Creator: Yeh, Brian T.
Object Type: Report
System: The UNT Digital Library
Federal Aviation Administration: Human Capital System Incorporates Many Leading Practices, but Improving Employees' Satisfaction with Their Workplace Remains a Challenge (open access)

Federal Aviation Administration: Human Capital System Incorporates Many Leading Practices, but Improving Employees' Satisfaction with Their Workplace Remains a Challenge

A letter report issued by the Government Accountability Office with an abstract that begins "Aviation is critical to the nation's economic well-being, global competitiveness, and national security. The Federal Aviation Administration's (FAA) 48,000 employees guide aircraft, oversee safety, and maintain air traffic control equipment. FAA will need these skills and additional expertise to address evolving missions. As requested, GAO reviewed (1) how FAA's human capital system compares with practices of leading organizations and (2) how FAA employees' workplace satisfaction compares with that of other federal government employees. GAO reviewed documents and relevant studies, and interviewed FAA officials who implement human capital procedures and union representatives. GAO also reviewed survey data on workplace satisfaction."
Date: October 28, 2009
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Financial Regulatory Reform: Systemic Risk and the Federal Reserve (open access)

Financial Regulatory Reform: Systemic Risk and the Federal Reserve

The recent financial crisis contained a number of systemic risk episodes, or episodes that caused instability for large parts of the financial system. The lesson some policymakers have taken from this crisis is that a systemic risk or "macroprudential" regulator is needed to prevent similar episodes in the future. This report defines the potential duties and responsibilities of a systemic risk regulator, relating those duties to events that potentially contributed to the recent crisis. It then identifies the powers that would need to be given to a regulator to perform those duties, and compares those powers and responsibilities to the Fed's existing powers and responsibilities. It discusses advantages and disadvantages of giving those responsibilities to the Fed or the executive branch. The report also includes a brief overview of major elements of the Administration's proposal, H.R. 4173, which passed the House on December 11, 2009, and the Restoring American Financial Stability Act, which was ordered to be reported out of the Senate Banking Committee on March 22, 2010.
Date: October 28, 2009
Creator: Labonte, Marc
Object Type: Report
System: The UNT Digital Library
Higher Education and Disability: Education Needs a Coordinated Approach to Improve Its Assistance to Schools in Supporting Students (open access)

Higher Education and Disability: Education Needs a Coordinated Approach to Improve Its Assistance to Schools in Supporting Students

A letter report issued by the Government Accountability Office with an abstract that begins "Research suggests that more students with disabilities are pursuing higher education than in years past, and recent legislative changes, such as those in the Higher Education Opportunity Act and Post-9/11 Veterans Educational Assistance Act of 2008, have the potential to increase the number and diversity of this population. GAO was asked to examine (1) what is known about the population of postsecondary students with disabilities; (2) how postsecondary schools are supporting students with disabilities; (3) what challenges, if any, schools face in supporting these students; and (4) how the Department of Education is assisting schools in supporting these students. To conduct this work, GAO analyzed federal survey and some state data; conducted site visits; interviewed agency officials, disability experts, school officials, and students; and reviewed laws, regulations, and literature."
Date: October 28, 2009
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Human Capital: Monitoring of Safeguards and Addressing Employee Perceptions Are Key to Implementing a Civilian Performance Management System in DOD (open access)

Human Capital: Monitoring of Safeguards and Addressing Employee Perceptions Are Key to Implementing a Civilian Performance Management System in DOD

A letter report issued by the Government Accountability Office with an abstract that begins "In 2004, the Department of Defense (DOD) began implementing the National Security Personnel System (NSPS)--a human capital system for DOD civilians. NSPS significantly redesigned the way DOD civilians are hired, compensated, and promoted. Pub. L. No. 110-181 mandated that GAO conduct reviews of the NSPS performance management system in calendar years 2008, 2009, and 2010. In this report, GAO assessed (1) the extent to which DOD has implemented certain internal safeguards to ensure the fairness, effectiveness, and credibility of NSPS, and monitored their implementation, and (2) how DOD civilian personnel perceive NSPS, and the actions DOD has taken to address those perceptions. GAO analyzed relevant documents and employee survey results, interviewed DOD officials, and conducted discussion groups with DOD employees at eight locations outside of the continental United States. Toward the end of GAO's review, both Houses of Congress passed proposed legislation that, if enacted, would terminate NSPS and require any future performance management system for DOD civilians to include certain internal safeguards"
Date: October 28, 2009
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Internet Domain Names: Background and Policy Issues (open access)

Internet Domain Names: Background and Policy Issues

This report discusses the Domain Name System (DNS), which is the distributed set of databases residing in computers around the world that contain address numbers mapped to corresponding domain names, making it possible to send and receive messages and to access information from computers anywhere on the Internet.
Date: October 28, 2009
Creator: Kruger, Lennard G.
Object Type: Report
System: The UNT Digital Library
Iraq: Post-Saddam Governance and Security (open access)

Iraq: Post-Saddam Governance and Security

This report discusses the current political and social climate of Iraq, specifically in regards to the influence of the U.S. military presence over recent years. This report addresses planned and possible future efforts under the Obama Administration, including the scheduled gradual troops withdrawal. This report also discusses the continued tensions between various Iraqi sociocultural groups.
Date: October 28, 2009
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library
Mechanical Behavior Analysis of a Test Coil for MICE Coupling Solenoid during Quench (open access)

Mechanical Behavior Analysis of a Test Coil for MICE Coupling Solenoid during Quench

The coupling magnet for the Muon Ionization Cooling Experiment has a self-inductance of 592 H and the magnet stored energy of 13 MJ at a full current of 210 A for the worst operation case of the MICE channel. The high level of stored energy in the magnet can cause high peak temperature during a quench and induce considerable impact of stresses. One test coil was built in order to validate the design method and to practice the stress and strain situation to occur in the coupling coil. In this study, the analysis on stress redistribution during a quench with sub-divided winding was performed. The stress variation may bring about failure of impregnating material such as epoxy resin, which is the curse of a new normal zone arising. Spring models for impregnating epoxy and fiber-glass cloth in the coil were used to evaluate the mechanical disturbance by impregnated materials failure. This paper presents the detailed dynamic stress and stability analysis to assess the stress distribution during the quench process and to check whether the transient loads are acceptable for the magnet.
Date: October 28, 2009
Creator: Pan, Heng; Wang, Li; Guo, Xinglong; Wu, Hong & Green, M.A.
Object Type: Article
System: The UNT Digital Library