Annual Radioactive Waste Tank Inspection Program 2009 (open access)

Annual Radioactive Waste Tank Inspection Program 2009

Aqueous radioactive wastes from Savannah River Site (SRS) separations and vitrification processes are contained in large underground carbon steel tanks. Inspections made during 2009 to evaluate these vessels and other waste handling facilities along with evaluations based on data from previous inspections are the subject of this report. The 2009 inspection program revealed that the structural integrity and waste confinement capability of the Savannah River Site waste tanks were maintained. All inspections scheduled per LWO-LWE-2008-00423, HLW Tank Farm Inspection Plan for 2009, were completed. All Ultrasonic measurements (UT) performed in 2009 met the requirements of C-ESG-00006, In-Service Inspection Program for High Level Waste Tanks, Rev. 1, and WSRC-TR-2002-00061, Rev.4. UT inspections were performed on Tank 29 and the findings are documented in SRNL-STI-2009-00559, Tank Inspection NDE Results for Fiscal Year 2009, Waste Tank 29. Post chemical cleaning UT measurements were made in Tank 6 and the results are documented in SRNL-STI-2009-00560, Tank Inspection NDE Results Tank 6, Including Summary of Waste Removal Support Activities in Tanks 5 and 6. A total of 6669 photographs were made and 1276 visual and video inspections were performed during 2009. Twenty-Two new leaksites were identified in 2009. The locations of these leaksites are documented …
Date: June 21, 2010
Creator: West, B. & Waltz, R.
Object Type: Report
System: The UNT Digital Library
Application of Absorption Spectroscopy to Actinide Process Analysis and Monitoring (open access)

Application of Absorption Spectroscopy to Actinide Process Analysis and Monitoring

The characteristic strong colors of aqueous actinide solutions form the basis of analytical techniques for actinides based on absorption spectroscopy. Colorimetric measurements of samples from processing activities have been used for at least half a century. This seemingly mature technology has been recently revitalized by developments in chemometric data analysis. Where reliable measurements could formerly only be obtained under well-defined conditions, modern methods are robust with respect to variations in acidity, concentration of complexants and spectral interferents, and temperature. This paper describes two examples of the use of process absorption spectroscopy for Pu analysis at the Savannah River Site, in Aiken, SC. In one example, custom optical filters allow accurate colorimetric measurements of Pu in a stream with rapid nitric acid variation. The second example demonstrates simultaneous measurement of Pu and U by chemometric treatment of absorption spectra. The paper concludes with a description of the use of these analyzers to supplement existing technologies in nuclear materials monitoring in processing, reprocessing, and storage facilities.
Date: June 3, 2010
Creator: Lascola, R. & Sharma, V.
Object Type: Article
System: The UNT Digital Library
Application of Adaptive Beamforming to Signal Observations at the Mt. Meron Array, Israel (open access)

Application of Adaptive Beamforming to Signal Observations at the Mt. Meron Array, Israel

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Date: June 7, 2010
Creator: Harris, D B
Object Type: Report
System: The UNT Digital Library
Application of solution techniques to rapid growth of organic crystals (open access)

Application of solution techniques to rapid growth of organic crystals

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Date: June 29, 2010
Creator: Zaitseva, N.; Carman, L.; Glenn, A.; Newby, J.; Faust, M.; Hamel, S. et al.
Object Type: Article
System: The UNT Digital Library
Appropriations and Fund Transfers in the Patient Protection and Affordable Care Act (PPACA) (open access)

Appropriations and Fund Transfers in the Patient Protection and Affordable Care Act (PPACA)

This report provides information about the mandatory appropriations and fund transfers in patient protection and ACA.
Date: June 28, 2010
Creator: Redhead, C. Stephen
Object Type: Report
System: The UNT Digital Library
Approximate gauge symemtry of composite vector bosons (open access)

Approximate gauge symemtry of composite vector bosons

It can be shown in a solvable field theory model that the couplings of the composite vector mesons made of a fermion pair approach the gauge couplings in the limit of strong binding. Although this phenomenon may appear accidental and special to the vector bosons made of a fermion pair, we extend it to the case of bosons being constituents and find that the same phenomenon occurs in more an intriguing way. The functional formalism not only facilitates computation but also provides us with a better insight into the generating mechanism of approximate gauge symmetry, in particular, how the strong binding and global current conservation conspire to generate such an approximate symmetry. Remarks are made on its possible relevance or irrelevance to electroweak and higher symmetries.
Date: June 1, 2010
Creator: Suzuki, Mahiko
Object Type: Article
System: The UNT Digital Library
The April 2010 Coup in Kyrgyzstan and its Aftermath: Context and Implications for U.S. Interests (open access)

The April 2010 Coup in Kyrgyzstan and its Aftermath: Context and Implications for U.S. Interests

This report discusses the most recent developments after the coup in Kyrgyzstan and its aftermath.
Date: June 15, 2010
Creator: Nichol, Jim
Object Type: Report
System: The UNT Digital Library
Argentina's Defaulted Sovereign Debt: Dealing with the "Holdouts" (open access)

Argentina's Defaulted Sovereign Debt: Dealing with the "Holdouts"

This report reviews Argentina's financial crisis, the bond exchanges of 2005 and 2010, ongoing litigation, prospects for a final solution, related U.S. legislation, and broader policy issues. These include lessons on the effectiveness and cost of Argentina's default strategy, the ability to force sovereigns to meet their debt obligations, and ways to avoid future defaults like Argentina's.
Date: June 17, 2010
Creator: Hornbeck, J. F.
Object Type: Report
System: The UNT Digital Library
ARM Climate Research Facility Monthly Instrument Report May 2010 (open access)

ARM Climate Research Facility Monthly Instrument Report May 2010

The purpose of this report is to provide a concise but comprehensive overview of Atmospheric Radiation Measurement Climate Research Facility instrumentation status. The report is divided into the following five sections: (1) new instrumentation in the process of being acquired and deployed, (2) field campaigns, (3) existing instrumentation and progress on improvements or upgrades, (4) proposed future instrumentation, and (5) Small Business Innovation Research instrument development.
Date: June 21, 2010
Creator: Voyles, J. W.
Object Type: Report
System: The UNT Digital Library
ARM User Survey Report (open access)

ARM User Survey Report

The objective of this survey was to obtain user feedback to, among other things, determine how to organize the exponentially growing data within the Atmospheric Radiation Measurement (ARM) Climate Research Facility, and identify users’ preferred data analysis system. The survey findings appear to have met this objective, having received approximately 300 responses that give insight into the type of work users perform, usage of the data, percentage of data analysis users might perform on an ARM-hosted computing resource, downloading volume level where users begin having reservations, opinion about usage if given more powerful computing resources (including ability to manipulate data), types of tools that would be most beneficial to them, preferred programming language and data analysis system, level of importance for certain types of capabilities, and finally, level of interest in participating in a code-sharing community.
Date: June 22, 2010
Creator: Roeder, L. R.
Object Type: Report
System: The UNT Digital Library
Armenia, Azerbaijan, and Georgia: Political Developments and Implications for U.S. Interests (open access)

Armenia, Azerbaijan, and Georgia: Political Developments and Implications for U.S. Interests

This report discusses the history and political background of Armenia, Azerbaijan, and Georgia since breaking away from the former Soviet Union at the end of 1991. It looks at key issues for the 112th Congress including economies, energy, regional politics, local crime, and terrorism.
Date: June 30, 2010
Creator: Nichol, Jim
Object Type: Report
System: The UNT Digital Library
Army Working Capital Fund: Army Faces Challenges in Managing Working Capital Fund Cash Balance during Wartime Environment (open access)

Army Working Capital Fund: Army Faces Challenges in Managing Working Capital Fund Cash Balance during Wartime Environment

A letter report issued by the Government Accountability Office with an abstract that begins "The Army Working Capital Fund (AWCF) collected over $16 billion for goods and services provided to customers in fiscal year 2009. Cash generated from sales is used by AWCF to cover its expenses such as paying employees. In light of the Army's changing role in the Middle East, GAO was asked to determine whether (1) AWCF's monthly cash balances fell within the Department of Defense's (DOD) cash requirements for fiscal years 2000 through 2009, (2) the cash transfers resulted in AWCF's monthly cash balances falling below the minimum amount required by DOD, and (3) the AWCF's projected monthly cash balances are expected to fall below DOD's minimum cash requirement for fiscal years 2010 and 2011 and actions the Army can take to manage those balances. To address these objectives, GAO (1) reviewed relevant DOD guidance, (2) obtained and analyzed AWCF budget and accounting reports containing cash information, and (3) interviewed DOD and Army officials."
Date: June 22, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
The Army's M-4 Carbine: Background and Issues for Congress (open access)

The Army's M-4 Carbine: Background and Issues for Congress

This report discusses the M-4 carbine, which is the Army's primary individual combat weapon for infantry units. While there have been concerns raised by some about the M-4's reliability and lethality, some studies suggest that the M-4 is performing well and is viewed favorably by users. The Army is undertaking both the M4 Carbine Improvement Program and the Individual Carbine Competition, the former to identify ways to improve the current weapon, and the latter to conduct an open competition among small arms manufacturers for a follow-on weapon. An integrated product team comprising representatives from the Infantry Center; the Armament, Research, Development, and Engineering Center; the Program Executive Office Soldier; and each of the armed services will assess proposed improvements to the M4. The proposal for the industry-wide competition is currently before the Joint Requirements Oversight Council, and with the anticipated approval, solicitation for industry submissions could begin this fall. It is expected, however, that a selection for a follow-on weapon will not occur before FY2013, and that fielding of a new weapon would take an additional three to four years.
Date: June 8, 2010
Creator: Feickert, Andrew
Object Type: Report
System: The UNT Digital Library
ARPES studies of the electronic structure of LaOFe(P,As) (open access)

ARPES studies of the electronic structure of LaOFe(P,As)

We report a comparison study of LaOFeP and LaOFeAs, two parent compounds of recently discovered iron-pnictide superconductors, using angle-resolved photoemission spectroscopy. Both systems exhibit some common features that are very different from well-studied cuprates. In addition, important differences have also been observed between these two ferrooxypnictides. For LaOFeP, quantitative agreement can be found between our photoemission data and the LDA band structure calculations, suggesting that a weak coupling approach based on an itinerant ground state may be more appropriate for understanding this new superconducting compound. In contrast, the agreement between LDA calculations and experiments in LaOFeAs is relatively poor, as highlighted by the unexpected Fermi surface topology around ({pi},{pi}). Further investigations are required for a comprehensive understanding of the electronic structure of LaOFeAs and related compounds.
Date: June 2, 2010
Creator: Analytis, J.G.
Object Type: Article
System: The UNT Digital Library
Arsenic remediation of drinking water using iron-oxide coated coal bottom ash (open access)

Arsenic remediation of drinking water using iron-oxide coated coal bottom ash

We describe laboratory and field results of a novel arsenic removal adsorbent called 'Arsenic Removal Using Bottom Ash' (ARUBA). ARUBA is prepared by coating particles of coal bottom ash, a waste material from coal fired power plants, with iron (hydr)oxide. The coating process is simple and conducted at room temperature and atmospheric pressure. Material costs for ARUBA are estimated to be low (~;;$0.08 per kg) and arsenic remediation with ARUBA has the potential to be affordable to resource-constrained communities. ARUBA is used for removing arsenic via a dispersal-and-removal process, and we envision that ARUBA would be used in community-scale water treatment centers. We show that ARUBA is able to reduce arsenic concentrations in contaminated Bangladesh groundwater to below the Bangladesh standard of 50 ppb. Using the Langmuir isotherm (R2 = 0.77) ARUBA's adsorption capacity in treating real groundwater is 2.6x10-6 mol/g (0.20 mg/g). Time-to-90percent (defined as the time interval for ARUBA to remove 90percent of the total amount of arsenic that is removed at equilibrium) is less than one hour. Reaction rates (pseudo-second-order kinetic model, R2>_ 0.99) increase from 2.4x105 to 7.2x105 g mol-1 min-1 as the groundwater arsenic concentration decreases from 560 to 170 ppb. We show that ARUBA's …
Date: June 1, 2010
Creator: Mathieu, Johanna L.; Gadgil, Ashok J.; Addy, Susan E. A. & Kowolik, Kristin
Object Type: Article
System: The UNT Digital Library
Asian Carp and the Great Lakes Region (open access)

Asian Carp and the Great Lakes Region

This report describes non-indigenous Asian carp migrating to the United States, their potential impacts on the ecosystem, federal responses, and litigation.
Date: June 7, 2010
Creator: Buck, Eugene H.; Upton, Harold F.; Stern, Charles V. & Nichols, James E.
Object Type: Report
System: The UNT Digital Library
Asian Carp and the Great Lakes Region (open access)

Asian Carp and the Great Lakes Region

Report describing threats to waterways in the Great Lakes area by invasive carp species. It includes background about the various species, the potential negative impacts and federal responses, as well as litigation, international concerns (regarding Canada), and areas of interest for Congress.
Date: June 25, 2010
Creator: Buck, Eugene H.; Upton, Harold F.; Stern, Charles V. & Nichols, James E.
Object Type: Report
System: The UNT Digital Library
Assembling the Marine Metagenome, One Cell at a Time (open access)

Assembling the Marine Metagenome, One Cell at a Time

The difficulty associated with the cultivation of most microorganisms and the complexity of natural microbial assemblages, such as marine plankton or human microbiome, hinder genome reconstruction of representative taxa using cultivation or metagenomic approaches. Here we used an alternative, single cell sequencing approach to obtain high-quality genome assemblies of two uncultured, numerically significant marine microorganisms. We employed fluorescence-activated cell sorting and multiple displacement amplification to obtain hundreds of micrograms of genomic DNA from individual, uncultured cells of two marine flavobacteria from the Gulf of Maine that were phylogenetically distant from existing cultured strains. Shotgun sequencing and genome finishing yielded 1.9 Mbp in 17 contigs and 1.5 Mbp in 21 contigs for the two flavobacteria, with estimated genome recoveries of about 91percent and 78percent, respectively. Only 0.24percent of the assembling sequences were contaminants and were removed from further analysis using rigorous quality control. In contrast to all cultured strains of marine flavobacteria, the two single cell genomes were excellent Global Ocean Sampling (GOS) metagenome fragment recruiters, demonstrating their numerical significance in the ocean. The geographic distribution of GOS recruits along the Northwest Atlantic coast coincided with ocean surface currents. Metabolic reconstruction indicated diverse potential energy sources, including biopolymer degradation, proteorhodopsin photometabolism, …
Date: June 24, 2010
Creator: Woyke, Tanja; Xie, Gary; Copeland, Alex; Gonzalez, Jose M.; Han, Cliff; Kiss, Hajnalka et al.
Object Type: Article
System: The UNT Digital Library
Assessing the Impacts of Reduced Noise Operations of Wind Turbines on Neighbor Annoyance: A Preliminary Analysis in Vinalhaven, Maine (open access)

Assessing the Impacts of Reduced Noise Operations of Wind Turbines on Neighbor Annoyance: A Preliminary Analysis in Vinalhaven, Maine

Neighbors living near the 3 turbine, 4.5 MW Vinalhaven, Maine wind power facility, which began operations in late 2009, have complained that the noise from the turbines is unwelcome and annoying. Fox Islands Wind, the owner of the facility, hypothesized that implementing a Noise Reduced Operation (NRO) for the turbines, which effectively limits the turbines maximum rpm and power output, would reduce the sound levels produced by the turbines, and therefore might also reduce the degree to which the neighbors report being annoyed by those sounds. To test this hypothesis in a preliminary fashion, a pilot study was conducted in early 2010, the results of which are the subject of this brief report. The study included asking near-by residents - those within roughly 3000 feet - to rate the sounds and the degree to which they were annoyed by them using logs which they filled out at multiple times during the day on as many days as were possible in the 35 day study period in February and March, 2010. Meanwhile, FIW adjusted the NRO settings of the turbines in a random fashion in the evenings during the same period, but in a pattern that the respondents were not made …
Date: June 23, 2010
Creator: Hoen, Ben; Wiser, Ryan & Eckholdt, Haftan
Object Type: Report
System: The UNT Digital Library
Assessment of Building Energy-Saving Policies and Programs in China During the 11th Five Year Plan (open access)

Assessment of Building Energy-Saving Policies and Programs in China During the 11th Five Year Plan

China's 11th Five-Year Plan (FYP) sets an ambitious target to reduce the energy intensity per unit of gross domestic product (GDP) by 20% from 2005 to 2010 (NDRC, 2006). In the building sector, the primary energy-saving target allocated during the 11 FYP period is 100 Mtce. Savings are expected to be achieved through the strengthening of enforcement of building energy efficiency codes, existing building retrofits and heat supply system reform, followed by energy management of government office buildings and large scale public buildings, adoption of renewable energy sources. To date, China has reported that it achieved the half of the 20% intensity reduction target by the end of 2008, however, little has been made clear on the status and the impact of the building programs. There has also been lack of description on methodology for calculating the savings and baseline definition, and no total savings that have been officially reported to date. This paper intend to provide both quantitative and qualitative assessment of the key policies and programs in building sector that China has instituted in its quest to fulfill the national goal. Overall, this paper concludes that the largest improvement for building energy efficiency were achieved in new buildings; …
Date: June 7, 2010
Creator: Zhou, Nan; McNeil, Michael & Levine, Mark
Object Type: Article
System: The UNT Digital Library
ASSESSMENT OF COMBINED HEAT AND POWER SYSTEM"PREMIUM POWER" APPLICATIONS IN CALIFORNIA (open access)

ASSESSMENT OF COMBINED HEAT AND POWER SYSTEM"PREMIUM POWER" APPLICATIONS IN CALIFORNIA

The effectiveness of combined heat and power (CHP) systems for power interruption intolerant,"premium power," facilities is the focus of this study. Through three real-world case studies and economic cost minimization modeling, the economic and environmental performance of"premium power" CHP is analyzed. The results of the analysis for a brewery, data center, and hospital lead to some interesting conclusions about CHP limited to the specific CHP technologies installed at those sites. Firstly, facilities with high heating loads prove to be the most appropriate for CHP installations from a purely economic standpoint. Secondly, waste heat driven thermal cooling systems are only economically attractive if the technology for these chillers can increase above the current best system efficiency. Thirdly, if the reliability of CHP systems proves to be as high as diesel generators they could replace these generators at little or no additional cost if the thermal to electric (relative) load of those facilities was already high enough to economically justify a CHP system. Lastly, in terms of greenhouse gas emissions, the modeled CHP systems provide some degree of decreased emissions, estimated at approximately 10percent for the hospital, the application with the highest relative thermal load in this case
Date: June 1, 2010
Creator: Norwood, Zack; Lipman, Timothy; Stadler, Michael & Marnay, Chris
Object Type: Article
System: The UNT Digital Library
Assessment of Offshore Wind Energy Resources for the United States (open access)

Assessment of Offshore Wind Energy Resources for the United States

This report summarizes the offshore wind resource potential for the contiguous United States and Hawaii as of May 2009. The development of this assessment has evolved over multiple stages as new regional meso-scale assessments became available, new validation data was obtained, and better modeling capabilities were implemented. It is expected that further updates to the current assessment will be made in future reports.
Date: June 1, 2010
Creator: Schwartz, M.; Heimiller, D.; Haymes, S. & Musial, W.
Object Type: Report
System: The UNT Digital Library
An Audit Report on Racetrack License Application Processing at the Racing Commission (open access)

An Audit Report on Racetrack License Application Processing at the Racing Commission

Report of the Texas State Auditor's Office related to determining whether the Racing Commission (Agency) processes racetrack license applications in a timely manner and in accordance with applicable law and Agency rules.
Date: June 2010
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History
An Audit Report on Selected Financial Processes at Sam Houston State University (open access)

An Audit Report on Selected Financial Processes at Sam Houston State University

Report of the Texas State Auditor's Office related to evaluating selected financial processes to determining whether Sam Houston State University has implemented a system of financial and administrative internal controls and considering whether accounting procedures and controls provide assurance of accurate, complete, reliable, and timely financial information; security controls within the University's financial system provide assurance that critical data is protected from unauthorized alteration, loss, or improper use; controls are adequate and effective in providing assurance to safeguard assets; and the University complies with applicable laws and regulations.
Date: June 2010
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History