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Disaster Assistance: Federal Assistance for Permanent Housing Primarily Benefited Homeowners; Opportunities Exist to Better Target Rental Housing Needs (open access)

Disaster Assistance: Federal Assistance for Permanent Housing Primarily Benefited Homeowners; Opportunities Exist to Better Target Rental Housing Needs

A letter report issued by the Government Accountability Office with an abstract that begins "In response to the 2005 Gulf Coast hurricanes, Congress provided about $130 billion in disaster recovery assistance, including assistance for permanent housing. Congress has expressed an interest in how this assistance has been allocated to homeowners and rental property owners, particularly for state-administered programs. GAO's objectives were to review (1) how federal disaster-related assistance for permanent housing has been provided to homeowners and rental property owners, (2) the extent to which federally funded programs have responded to the needs of homeowners and rental property owners, and (3) the challenges that homeowners and rental property owners have faced in applying for and using federal assistance, and potential options for addressing these challenges. To address these objectives, GAO analyzed documentation for key programs and program data, and interviewed federal, state, and local officials regarding the challenges associated with these programs."
Date: January 14, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Department of Energy: Actions Needed to Develop High-Quality Cost Estimates for Construction and Environmental Cleanup Projects (open access)

Department of Energy: Actions Needed to Develop High-Quality Cost Estimates for Construction and Environmental Cleanup Projects

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Energy (DOE) spends billions of dollars on construction projects--those that maintain nuclear weapons, conduct research, and process nuclear waste--and projects that clean up nuclear and hazardous wastes at DOE's sites; these projects are largely executed by contractors. DOE has struggled to keep these projects within cost and schedule estimates. GAO was asked to assess (1) DOE's cost-estimating policies and guidance, (2) the extent to which selected projects' cost estimates reflect best practices compiled in GAO's cost-estimating guide, and (3) DOE's recent actions to improve cost estimating. GAO reviewed relevant documents, including support for cost estimates at three major construction projects--those costing $750 million or more--and one environmental cleanup project, and interviewed DOE officials."
Date: January 14, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Surface Coal Mining: Financial Assurances for, and Long-Term Oversight of, Mines with Valley Fills in Four Appalachian States (open access)

Surface Coal Mining: Financial Assurances for, and Long-Term Oversight of, Mines with Valley Fills in Four Appalachian States

A letter report issued by the Government Accountability Office with an abstract that begins "Surface mining for coal in Appalachia has generated opposition because rock and dirt from mountaintops is often removed and placed in nearby valleys and streams. The Office of Surface Mining Reclamation and Enforcement (OSM) in the Department of the Interior and states with approved programs regulate these mines under the Surface Mining Control and Reclamation Act (SMCRA). The Army Corps of Engineers (Corps), the Environmental Protection Agency (EPA), and states also regulate different aspects of coal mining, including the filling of valley streams, under the Clean Water Act. Under SMCRA, mine operators must provide financial assurances sufficient to allow mines to be reclaimed. Under the Clean Water Act, the Corps may require financial assurances that the impact of mines on streams can be mitigated. GAO was asked to examine (1) the approaches OSM, the states, and the Corps have taken to obtain financial assurances for surface coal mines with valley fills; (2) federal and state agencies' monitoring of these mines after reclamation and mitigation are complete; and (3) the federal laws agencies may use, and have used, to address latent environmental problems. GAO gathered information from …
Date: January 14, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Briefing on Commercial and Department of Defense Space System Requirements and Acquisition Practices (open access)

Briefing on Commercial and Department of Defense Space System Requirements and Acquisition Practices

Correspondence issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) has had long-standing difficulties developing and delivering space systems on time and within budget. Some programs have been delayed by years and cost billions of dollars more than their initial estimates. Attempts to reform DOD space acquisitions in the past have sought to leverage commercial approaches or rely more on the commercial sector to meet DOD needs. These efforts have not been successful and, in some cases, have exacerbated problems, particularly with respect to oversight. In view of past challenges with adopting commercial approaches, Congress requested an examination of the following questions: (1) What are the differences between commercial and national security space system missions, requirements, and technology development? (2) What acquisition practices adopted by commercial companies could be used for national security space system acquisitions? (3) Which acquisition practices adopted by commercial companies may not be readily adaptable for national security space system acquisitions?"
Date: January 14, 2010
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
The Greensheet (Houston, Tex.), Vol. 40, No. 597, Ed. 1 Thursday, January 14, 2010 (open access)

The Greensheet (Houston, Tex.), Vol. 40, No. 597, Ed. 1 Thursday, January 14, 2010

Free weekly newspaper that includes business and classified advertising.
Date: January 14, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 40, No. 596, Ed. 1 Thursday, January 14, 2010 (open access)

The Greensheet (Houston, Tex.), Vol. 40, No. 596, Ed. 1 Thursday, January 14, 2010

Free weekly newspaper that includes business and classified advertising.
Date: January 14, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Texas Jewish Post (Fort Worth, Tex.), Vol. 64, No. 2, Ed. 1 Thursday, January 14, 2010 (open access)

Texas Jewish Post (Fort Worth, Tex.), Vol. 64, No. 2, Ed. 1 Thursday, January 14, 2010

Weekly Jewish newspaper from Fort Worth, Texas that includes local, state and national news along with extensive advertising.
Date: January 14, 2010
Creator: Wisch, Rene
Object Type: Newspaper
System: The Portal to Texas History
The Bastrop Advertiser (Bastrop, Tex.), Vol. 156, No. 91, Ed. 1 Thursday, January 14, 2010 (open access)

The Bastrop Advertiser (Bastrop, Tex.), Vol. 156, No. 91, Ed. 1 Thursday, January 14, 2010

Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.
Date: January 14, 2010
Creator: Wright, Cyndi
Object Type: Newspaper
System: The Portal to Texas History
The Design and Implementation of Patent Revocation Proceedings: Innovation Issues (open access)

The Design and Implementation of Patent Revocation Proceedings: Innovation Issues

This report contains an overview of the innovation issues of the design and implementation of patent revocation proceedings.
Date: January 14, 2010
Creator: Thomas, John R.
Object Type: Report
System: The UNT Digital Library
Massively Multi-core Acceleration of a Document-Similarity Classifier to Detect Web Attacks (open access)

Massively Multi-core Acceleration of a Document-Similarity Classifier to Detect Web Attacks

This paper describes our approach to adapting a text document similarity classifier based on the Term Frequency Inverse Document Frequency (TFIDF) metric to two massively multi-core hardware platforms. The TFIDF classifier is used to detect web attacks in HTTP data. In our parallel hardware approaches, we design streaming, real time classifiers by simplifying the sequential algorithm and manipulating the classifier's model to allow decision information to be represented compactly. Parallel implementations on the Tilera 64-core System on Chip and the Xilinx Virtex 5-LX FPGA are presented. For the Tilera, we employ a reduced state machine to recognize dictionary terms without requiring explicit tokenization, and achieve throughput of 37MB/s at slightly reduced accuracy. For the FPGA, we have developed a set of software tools to help automate the process of converting training data to synthesizable hardware and to provide a means of trading off between accuracy and resource utilization. The Xilinx Virtex 5-LX implementation requires 0.2% of the memory used by the original algorithm. At 166MB/s (80X the software) the hardware implementation is able to achieve Gigabit network throughput at the same accuracy as the original algorithm.
Date: January 14, 2010
Creator: Ulmer, C.; Gokhale, M.; Top, P.; Gallagher, B. & Eliassi-Rad, T.
Object Type: Article
System: The UNT Digital Library
[TSDC Summary of Texas Ethics Commission Filing] (open access)

[TSDC Summary of Texas Ethics Commission Filing]

Summary of Texas Ethics Commission Filing on July 1, 2009 to December 31, 2009 listing General-Purpose Committee Campaign Finance Report, General-Purpose Committee Report Purpose and Totals, Political Contributions other than Pledges or Loans, Political Expenditures, acknowledgement receipt of filing for Texas Stonewall Democratic Caucus, custom summary report from July through December 2009, Balance Sheet Details as of December 31, 2009, and records of all the financial transactions as of December 31, 2009.
Date: January 14, 2010
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Shockwave Engine: Wave Disk Engine (open access)

Shockwave Engine: Wave Disk Engine

Broad Funding Opportunity Announcement Project: MSU is developing a new engine for use in hybrid automobiles that could significantly reduce fuel waste and improve engine efficiency. In a traditional internal combustion engine, air and fuel are ignited, creating high-temperature and high-pressure gases which expand rapidly. This expansion of gases forces the engine’s pistons to pump and powers the car. MSU’s engine has no pistons. It uses the combustion of air and fuel to build up pressure within the engine, generating a shockwave that blasts hot gas exhaust into the blades of the engine’s rotors causing them to turn, which generates electricity. MSU’s redesigned engine would be the size of a cooking pot and contain fewer moving parts—reducing the weight of the engine by 30%. It would also enable a vehicle that could use 60% of its fuel for propulsion.
Date: January 14, 2010
Creator: unknown
Object Type: Text
System: The UNT Digital Library
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 33, No. 283, Ed. 1 Thursday, January 14, 2010 (open access)

The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 33, No. 283, Ed. 1 Thursday, January 14, 2010

Free weekly newspaper that includes business and classified advertising.
Date: January 14, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 33, No. 285, Ed. 1 Thursday, January 14, 2010 (open access)

The Greensheet (Fort Worth, Tex.), Vol. 33, No. 285, Ed. 1 Thursday, January 14, 2010

Free weekly newspaper that includes business and classified advertising.
Date: January 14, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 33, No. 284, Ed. 1 Thursday, January 14, 2010 (open access)

The Greensheet (Fort Worth, Tex.), Vol. 33, No. 284, Ed. 1 Thursday, January 14, 2010

Free weekly newspaper that includes business and classified advertising.
Date: January 14, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
System Planning With the Hanford Waste Operations Simulator (open access)

System Planning With the Hanford Waste Operations Simulator

At the U. S. Department of Energy's Hanford Site in southeastern Washington State, 216 million liters (57 million gallons) of nuclear waste is currently stored in aging underground tanks, threatening the Columbia River. The River Protection Project (RPP), a fully integrated system of waste storage, retrieval, treatment, and disposal facilities, is in varying stages of design, construction, operation, and future planning. These facilities face many overlapping technical, regulatory, and financial hurdles to achieve site cleanup and closure. Program execution is ongoing, but completion is currently expected to take approximately 40 more years. Strategic planning for the treatment of Hanford tank waste is by nature a multi-faceted, complex and iterative process. To help manage the planning, a report referred to as the RPP System Plan is prepared to provide a basis for aligning the program scope with the cost and schedule, from upper-tier contracts to individual facility operating plans. The Hanford Tank Waste Operations Simulator (HTWOS), a dynamic flowsheet simulation and mass balance computer model, is used to simulate the current planned RPP mission, evaluate the impacts of changes to the mission, and assist in planning near-term facility operations. Development of additional modeling tools, including an operations research model and a …
Date: January 14, 2010
Creator: Crawford, T. W.; Certa, P. J. & Wells, M. N.
Object Type: Article
System: The UNT Digital Library
DEPLOYING TECHNOLOGY ADVANCEMENTS FOR CHARACTERIZING THE VADOSE ZONE IN SINGLE-SHELL TANK WASTE MANAGEMENT AREAS (open access)

DEPLOYING TECHNOLOGY ADVANCEMENTS FOR CHARACTERIZING THE VADOSE ZONE IN SINGLE-SHELL TANK WASTE MANAGEMENT AREAS

As much as one million gallons of waste is believed to have leaked from tanks, pipelines or other equipment in the single-shell tank farm waste management areas (WMAs) within the 200 East and West areas of the U.S. Department of Energy's Hanford Site near Richland, Washington. Although some contamination has reached groundwater, most contamination still resides in the vadose zone. The magnitude ofthis problem requires new approaches for soil characterization if we are to understand the nature and extent of the contamination and take action to protect the enviromnent. Because of the complexity and expense of drilling traditional boreholes in contaminated soil, direct push characterization using a hydraulic hammer has been extensively employed. Direct push probe holes <3-inch diameter have been pushed to a maximum depth of 240 feet below ground surface in 200 East area. Previously gross gamma and moisture logging of these narrow probe holes was perfonned to identify the location of cesium-137 ({sup 137}Cs) (which has limited mobility in Hanford soil) and moisture peaks. Recently a bismuth germinate detector has been deployed for detecting and quantifying the spectrum of cobalt-60 ({sup 60}Co) (a more mobile contaminant), which provides additional information. The direct push system is configured to …
Date: January 14, 2010
Creator: SJ, EBERLEIN; HA, SYDNOR & MYERS, DA
Object Type: Article
System: The UNT Digital Library
HIGH-LEVEL WASTE FEED CERTIFICATION IN HANFORD DOUBLE-SHELL TANKS (open access)

HIGH-LEVEL WASTE FEED CERTIFICATION IN HANFORD DOUBLE-SHELL TANKS

The ability to effectively mix, sample, certify, and deliver consistent batches of High Level Waste (HLW) feed from the Hanford Double Shell Tanks (DST) to the Waste Treatment and Immobilization Plant (WTP) presents a significant mission risk with potential to impact mission length and the quantity of HLW glass produced. DOE's River Protection Project (RPP) mission modeling and WTP facility modeling assume that individual 3785 cubic meter (l million gallon) HLW feed tanks are homogenously mixed, representatively sampled, and consistently delivered to the WTP. It has been demonstrated that homogenous mixing ofHLW sludge in Hanford DSTs is not likely achievable with the baseline design thereby causing representative sampling and consistent feed delivery to be more difficult. Inconsistent feed to the WTP could cause additional batch-to-batch operational adjustments that reduce operating efficiency and have the potential to increase the overall mission length. The Hanford mixing and sampling demonstration program will identify DST mixing performance capability, will evaluate representative sampling techniques, and will estimate feed batch consistency. An evaluation of demonstration program results will identify potential mission improvement considerations that will help ensure successful mission completion. This paper will discuss the history, progress, and future activities that will define and mitigate the …
Date: January 14, 2010
Creator: MG, THIEN; BE, WELLS & DJ, ADAMSON
Object Type: Article
System: The UNT Digital Library
Sitewide monitoring at Agra, Kansas, June 2009. (open access)

Sitewide monitoring at Agra, Kansas, June 2009.

In 1985, carbon tetrachloride was discovered in the groundwater at Agra, Kansas, during routine sampling of public water supply wells. Two of Agra's four public water supply wells contained low but detectable levels of carbon tetrachloride; the concentrations in wells PWS-3 and PWS-4 exceeded the maximum contaminant level. These wells were removed from service in 1986, although they remain available for uses other than drinking water. Other public wells, outside the area of contamination, supply drinking water for the city of Agra. In 1987-2005, the Kansas Department of Health and Environment (KDHE) and the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) conducted investigations to delineate the contaminant plume and to identify source areas for the contamination - which results from the past use of grain fumigants containing carbon tetrachloride. Source areas were identified on the former CCC/USDA grain storage facility property and on the Producers Agricultural Marketing Association, Inc., property located to the south (Argonne 2006). The contaminant plume extends to the southeast, toward well PWS-3, from the identified source areas. Both the CCC/USDA and Pro-Ag Marketing are currently implementing KDHE-approved interim measures (IMs). To address the contamination identified on its former property, the CCC/USDA is implementing …
Date: January 14, 2010
Creator: LaFreniere, L. M.
Object Type: Report
System: The UNT Digital Library
TANK OPERATIONS CONTRACT CONSTRUCTION MANAGEMENT METHODOLOGY UTILIZING THE AGENCY METHOD OF CONSTRUCTION MANAGEMENT TO SAFELY AND EFFECTIVELY COMPLETE NUCLEAR CONSTRUCTION WORK (open access)

TANK OPERATIONS CONTRACT CONSTRUCTION MANAGEMENT METHODOLOGY UTILIZING THE AGENCY METHOD OF CONSTRUCTION MANAGEMENT TO SAFELY AND EFFECTIVELY COMPLETE NUCLEAR CONSTRUCTION WORK

Washington River Protection Solutions, LLC (WRPS) has faced significant project management challenges in managing Davis-Bacon construction work that meets contractually required small business goals. The unique challenge is to provide contracting opportunities to multiple small business construction subcontractors while performing high hazard work in a safe and productive manner. Previous to the Washington River Protection Solutions, LLC contract, Construction work at the Hanford Tank Farms was contracted to large companies, while current Department of Energy (DOE) Contracts typically emphasize small business awards. As an integral part of Nuclear Project Management at Hanford Tank Farms, construction involves removal of old equipment and structures and installation of new infrastructure to support waste retrieval and waste feed delivery to the Waste Treatment Plant. Utilizing the optimum construction approach ensures that the contractors responsible for this work are successful in meeting safety, quality, cost and schedule objectives while working in a very hazardous environment. This paper describes the successful transition from a traditional project delivery method that utilized a large business general contractor and subcontractors to a new project construction management model that is more oriented to small businesses. Construction has selected the Agency Construction Management Method. This method was implemented in the first …
Date: January 14, 2010
Creator: KF, LESO; HM, HAMILTON; M, FARNER & T, HEATH
Object Type: Article
System: The UNT Digital Library
THE SENSITIVITY OF CARBON STEELS' SUSCEPTIBILITY TO LOCALIZED CORROSION TO THE PH OF NITRATE BASED NUCLEAR WASTES (open access)

THE SENSITIVITY OF CARBON STEELS' SUSCEPTIBILITY TO LOCALIZED CORROSION TO THE PH OF NITRATE BASED NUCLEAR WASTES

The Hanford tank reservation contains approximately 50 million gallons of liquid legacy radioactive waste from cold war weapons production, which is stored in 177 underground storage tanks. The tanks will be in use until waste processing operations are completed. The wastes tend to be high pH (over 10) and nitrate based. Under these alkaline conditions carbon steels tend to be passive and undergo relatively slow uniform corrosion. However, the presence of nitrate and other aggressive species, can lead to pitting and stress corrosion cracking. This work is a continuation of previous work that investigated the propensity of steels to suffer pitting and stress corrosion cracking in various waste simulants. The focus of this work is an investigation of the sensitivity of the steels' pitting and stress corrosion cracking susceptibility tosimulant pH. Previous work demonstrated that wastes that are high in aggressive nitrate and low in inhibitory nitrite are susceptible to localized corrosion. However, the previous work involved wastes with pH 12 or higher. The current work involves wastes with lower pH of 10 or 11. It is expected that at these lower pHs that a higher nitrite-to-nitrate ratio will be necessary to ensure tank integrity. This experimental work involved both …
Date: January 14, 2010
Creator: KD, BOOMER
Object Type: Article
System: The UNT Digital Library
PERFORMANCE ASSESSMENT TO SUPPORT CLOSURE OF SINGLE-SHELL TANK WASTE MANAGEMENT AREA C AT THE HANFORD SITE (open access)

PERFORMANCE ASSESSMENT TO SUPPORT CLOSURE OF SINGLE-SHELL TANK WASTE MANAGEMENT AREA C AT THE HANFORD SITE

Current proposed regulatory agreements (Consent Decree) at the Hanford Site call for closure of the Single-Shell Tank (SST) Waste Management Area (WMA) C in the year 2019. WMA C is part of the SST system in 200 East area ofthe Hanford Site and is one of the first tank farm areas built in mid-1940s. In order to close WMA C, both tank and facility closure activities and corrective actions associated with existing soil and groundwater contamination must be performed. Remedial activities for WMA C and corrective actions for soils and groundwater within that system will be supported by various types of risk assessments and interim performance assessments (PA). The U.S. Department of Energy, Office of River Protection (DOE-ORP) and the State ofWashington Department of Ecology (Ecology) are sponsoring a series of working sessions with regulators and stakeholders to solicit input and to obtain a common understanding concerning the scope, methods, and data to be used in the planned risk assessments and PAs to support closure of WMA C. In addition to DOE-ORP and Ecology staff and contractors, working session members include representatives from the U.S. Enviromnental Protection Agency, the U.S. Nuclear Regulatory Commission (NRC), interested tribal nations, other stakeholders groups, …
Date: January 14, 2010
Creator: MP, BERGERON
Object Type: Article
System: The UNT Digital Library
Implications of NSTX Lithium Results for Magnetic Fusion Research (open access)

Implications of NSTX Lithium Results for Magnetic Fusion Research

Lithium wall coating techniques have been experimentally explored on NSTX for the last five years. The lithium experimentation on NSTX started with a few milligrams of lithium injected into the plasma as pellets and it has evolved to a lithium evaporation system which can evaporate up to ~ 100 g of lithium onto the lower divertor plates between lithium reloadings. The unique feature of the lithium research program on NSTX is that it can investigate the effects of lithium in H-mode divertor plasmas. This lithium evaporation system thus far has produced many intriguing and potentially important results; the latest of these are summarized in a companion paper by H. Kugel. In this paper, we suggest possible implications and applications of the NSTX lithium results on the magnetic fusion research which include electron and global energy confinement improvements, MHD stability enhancement at high beta, ELM control, H-mode power threshold reduction, improvements in radio frequency heating and non-inductive plasma start-up performance, innovative divertor solutions and improved operational efficiency.
Date: January 14, 2010
Creator: M. Ono, M.G. Bell, R.E. Bell, R. Kaita, H.W. Kugel, B.P. LeBlanc, J.M. Canik, S. Diem, S.P.. Gerhardt, J. Hosea, S. Kaye, D. Mansfield, R. Maingi, J. Menard, S. F. Paul, R. Raman, S.A. Sabbagh, C.H. Skinner, V. Soukhanovskii, G. Taylor, and the NSTX Research Team
Object Type: Report
System: The UNT Digital Library
RESORCINOL-FORMALDEHYDE ION EXCHANGE RESIN CHEMISTRY FOR HIGH LEVEL WASTE TREATMENT (open access)

RESORCINOL-FORMALDEHYDE ION EXCHANGE RESIN CHEMISTRY FOR HIGH LEVEL WASTE TREATMENT

A principal goal at the Savannah River Site is to safely dispose of the large volume of liquid nuclear waste held in many storage tanks. In-tank ion exchange technology is being considered for cesium removal using a polymer resin made of resorcinol formaldehyde that has been engineered into microspheres. The waste under study is generally lower in potassium and organic components than Hanford waste; therefore, the resin performance was evaluated with actual dissolved salt waste. The ion exchange performance and resin chemistry results are discussed.
Date: January 14, 2010
Creator: Nash, C. & Duignan, M.
Object Type: Article
System: The UNT Digital Library