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Department of Energy: Further Actions Are Needed to Strengthen Contract Management for Major Projects (open access)

Department of Energy: Further Actions Are Needed to Strengthen Contract Management for Major Projects

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Energy (DOE) pays its contractors billions of dollars each year to implement its major projects--those costing more than $400 million each. Many major projects have experienced substantial cost and schedule overruns, largely because of contract management problems. GAO was asked to assess, for major departmental projects, (1) DOE's use of performance incentives to effectively control costs and maintain schedules, (2) the reliability of the data DOE uses to monitor and assess contractor performance, and (3) the reliability of the Project Assessment and Reporting System (PARS) data that senior managers use for project oversight."
Date: March 18, 2005
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Free Trade Area of the Americas: Missed Deadline Prompts Efforts to Restart Stalled Hemispheric Trade Negotiations (open access)

Free Trade Area of the Americas: Missed Deadline Prompts Efforts to Restart Stalled Hemispheric Trade Negotiations

A letter report issued by the Government Accountability Office with an abstract that begins "If completed, the Free Trade Area of the Americas (FTAA) agreement would encompass an area of 800 million people and about $13 trillion in production of goods and services, making it the most significant regional trade initiative presently being pursued by the United States. The 34 democratic nations of the Western Hemisphere formally launched negotiations towards a FTAA in 1998, and set a January 2005 deadline for concluding a FTAA agreement. GAO was asked to analyze (1) progress made in FTAA negotiations since GAO's last (April 2003) report (2) factors that have been influencing the FTAA's progress; and (3) future prospects for the FTAA. USTR disagreed with our report, stating it was a poorly framed portrayal of progress and problems in the negotiations, overemphasized the role of the United States and Brazil in the current impasse, and did not give sufficient weight to U.S. efforts to make progress. GAO made several changes in response, but disagreed with USTR's assessment. The Departments of State, Commerce, and Agriculture provided technical comments, which we incorporated."
Date: March 18, 2005
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Managing for Results: Building on the Momentum for Strategic Human Capital Reform (open access)

Managing for Results: Building on the Momentum for Strategic Human Capital Reform

Testimony issued by the General Accounting Office with an abstract that begins "This testimony discusses the federal government's human capital challenges. The basic problem has been a longstanding lack of a consistent strategic approach to marshalling, managing, and maintaining the government's human capital needs. To overcome this problem, GAO has developed a model of strategic human capital management that highlights the importance of a sustained commitment by agency leaders to maximize the value of their workforce. The Office of Personnel Management and the Office of Management and Budget have developed tools to assess human capital management efforts that are conceptually consistent with GAO's model. GAO's model emphasizes two central principles. First, people are assets whose value can be enhanced through investment. As with any investment, the goal is to maximize value while managing risk. Second, an organization's human capital approaches should be designed, implemented, and assessed by how well they help pursue its mission and achieve desired results. GAO has also identified a preliminary list of key practices that will enable agencies to acquire, develop, and retain talent. Successful organizational change depends on a willingness by agency leaders to embrace strategic human capital management and related change management approaches."
Date: March 18, 2002
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
South Florida Restoration: Task Force Needs to Improve Science Coordination to Increase the Likelihood of Success (open access)

South Florida Restoration: Task Force Needs to Improve Science Coordination to Increase the Likelihood of Success

A letter report issued by the General Accounting Office with an abstract that begins "Restoration of the South Florida ecosystem is a significant federal and state priority, requiring the development and use of extensive scientific information. GAO was asked to report on the funds spent on scientific activities for restoration, the gaps that exist in scientific information, and the extent to which scientific activities are being coordinated."
Date: March 18, 2003
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Aviation Security: Preliminary Observations on TSA's Progress and Challenges in Meeting the Statutory Mandate for Screening Air Cargo on Passenger Aircraft (open access)

Aviation Security: Preliminary Observations on TSA's Progress and Challenges in Meeting the Statutory Mandate for Screening Air Cargo on Passenger Aircraft

Testimony issued by the Government Accountability Office with an abstract that begins "The Implementing Recommendations of the 9/11 Commission Act of 2007 mandates the Department of Homeland Security (DHS) to establish a system to physically screen 50 percent of cargo transported on passenger aircraft by February 2009 and 100 percent of such cargo by August 2010. This testimony provides preliminary observations on the Transportation Security Administration's (TSA) progress in meeting the mandate to screen cargo on passenger aircraft and the challenges TSA and industry stakeholders may face in screening such cargo. GAO's testimony is based on products issued from October 2005 through August 2008, and its ongoing review of air cargo security. GAO reviewed TSA's air cargo security programs, interviewed program officials and industry representatives, and visited two large U.S. airports."
Date: March 18, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Foreign Assistance: U.S. Democracy Programs in Six Latin American Countries Have Yielded Modest Results (open access)

Foreign Assistance: U.S. Democracy Programs in Six Latin American Countries Have Yielded Modest Results

A chapter report issued by the General Accounting Office with an abstract that begins "Supporting democracy abroad is a major U.S. foreign policy objective. To better understand how this assistance has been implemented in Latin America, GAO was asked to review programs in six countries--Bolivia, Colombia, El Salvador, Guatemala, Nicaragua, and Peru--that have been of particular importance to U.S. interests in Central and South America. Between fiscal years 1992 and 2002, U.S. agencies have funded more than $580 million in democracy-related programs in these countries. This report discusses the impact of and factors affecting this assistance and the overarching management issues that have affected program planning and implementation."
Date: March 18, 2003
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Defense Acquisitions: DOD Must Prioritize Its Weapon System Acquisitions and Balance Them with Available Resources (open access)

Defense Acquisitions: DOD Must Prioritize Its Weapon System Acquisitions and Balance Them with Available Resources

Testimony issued by the Government Accountability Office with an abstract that begins "Since fiscal year 2000, the Department of Defense (DOD) has significantly increased the number of major defense acquisition programs and its overall investment in them. However, acquisition outcomes have not improved. Over the next 5 years, DOD expects to invest $357 billion on the development and procurement of major defense acquisition programs and billions more on their operation and maintenance. Last year, we reported that the total acquisition cost of DOD's portfolio of major defense programs under development or in production has grown by $295 billion (in fiscal year 2008 dollars). In most cases, the programs we assessed failed to deliver capabilities when promised--often forcing warfighters to spend additional funds on maintaining legacy systems. Continued cost growth results in less funding being available for other DOD priorities and programs, while continued failure to deliver weapon systems on time delays providing critical capabilities to the warfighter. This testimony describes the systemic problems that have contributed to poor cost and schedule outcomes in DOD's acquisition of major weapon systems; recent actions DOD has taken to address these problems; and steps that Congress and DOD need to take to improve the …
Date: March 18, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Homeland Security: Risks Facing Key Border and Transportation Security Program Need to Be Addressed (open access)

Homeland Security: Risks Facing Key Border and Transportation Security Program Need to Be Addressed

Testimony issued by the General Accounting Office with an abstract that begins "US-VISIT (United States Visitor and Immigrant Status Indicator Technology) is a governmentwide program to enhance national security, facilitate legitimate trade and travel, contribute to the integrity of the U.S. immigration system, and adhere to U.S. privacy laws and policies by (1) collecting, maintaining, and sharing information on certain foreign nationals who enter and exit the United States; (2) identifying foreign nationals who (1) have overstayed or violated the terms of their visit; (2) can receive, extend, or adjust their immigration status; or (3) should be apprehended or detained by law enforcement officials; (3) detecting fraudulent travel documents, verifying traveler identity, and determining traveler admissibility through the use of biometrics; and (4) facilitating information sharing and coordination within the border management community. GAO was asked to testify on its completed work on the nature, status, and management of the USVISIT program."
Date: March 18, 2004
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Health-Care-Associated Infections In Hospitals: Continuing Leadership Needed from HHS to Prioritize Prevention Practices and Improve Data on These Infections (open access)

Health-Care-Associated Infections In Hospitals: Continuing Leadership Needed from HHS to Prioritize Prevention Practices and Improve Data on These Infections

Testimony issued by the Government Accountability Office with an abstract that begins "According to the Centers for Disease Control and Prevention (CDC), health-care-associated infections (HAI)--infections that patients acquire while receiving treatment for other conditions-- are estimated to be 1 of the top 10 causes of death in the nation. The statement GAO is issuing today summarizes a March 2008 report, Health-Care-Associated Infections in Hospitals: Leadership Needed from HHS to Prioritize Prevention Practices and Improve Data on These Infections (GAO-08-283). In this report, GAO examined (1) CDC's guidelines for hospitals to reduce or prevent HAIs and what HHS does to promote their implementation, (2) Centers for Medicare & Medicaid Services' (CMS) and hospital accrediting organizations' required standards for hospitals to reduce or prevent HAIs, and (3) HHS programs that collect data related to HAIs and integration of the data across HHS. To conduct the work, GAO reviewed documents and interviewed HHS and accrediting organization officials. To update certain information for this statement, GAO reviewed relevant HHS documents released after GAO's March 2008 report."
Date: March 18, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Small Business Contracting: Concerns About the Administration's Plan to Address Contract Bundling Issues (open access)

Small Business Contracting: Concerns About the Administration's Plan to Address Contract Bundling Issues

Testimony issued by the General Accounting Office with an abstract that begins "The Office of Federal Procurement Policy's (OFPP) plan to increase federal contracting opportunities for small business is aimed at eliminating unnecessary contract bundling and mitigating the effects of necessary contract bundling. Specifically it calls for a series of actions to (1) hold federal agency managers accountable for improving small business contracting opportunities, (2) strengthen the Federal Acquisition Regulation and Small Business Administration (SBA) regulations governing contract bundling, and (3) use SBA and agency small business resources to improve oversight and mitigate the effects of bundling. This testimony focuses on two implementation concerns: (1) the measures and information that will be used to monitor agencies' progress in eliminating unnecessary contract bundling and mitigating the effects of necessary bundling and (2) the ability of SBA's Procurement Center Representatives and agencies' Small and Disadvantaged Business Utilization offices to meet the added responsibilities laid out in the plan."
Date: March 18, 2003
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Next Generation Air Transportation System: Status of Transformation and Issues Associated with Midterm Implementation of Capabilities (open access)

Next Generation Air Transportation System: Status of Transformation and Issues Associated with Midterm Implementation of Capabilities

Testimony issued by the Government Accountability Office with an abstract that begins "To prepare for forecasted air traffic growth, the Federal Aviation Administration (FAA), including its Joint Planning and Development Office (JPDO) and Air Traffic Organization (ATO), is planning for and implementing the Next Generation Air Transportation System (NextGen) in partnership with other federal agencies and the aviation industry. NextGen will transform the current radar-based air traffic control system into a more automated, aircraft-centered, satellite-based system. GAO's previous work has identified issues related to the usefulness of NextGen planning documents, FAA's organizational structure to manage the transition to NextGen, and FAA's workforce to oversee and implement NextGen. Recently, the focus of NextGen planning and implementation has shifted to capabilities that can be achieved in the midterm, defined as 2012 through 2018. GAO's testimony focuses on (1) JPDO's and ATO's progress in planning and implementing NextGen, (2) ongoing efforts to implement midterm capabilities to address capacity constraints and delays, (3) the potential impact on NextGen of organizational changes and human capital issues, and (4) research and development and facilities maintenance and reconfiguration challenges going forward. GAO's testimony updates prior GAO work with FAA data and interviews with agency and union officials …
Date: March 18, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Recovering Iraq's Assets: Preliminary Observations on U.S. Efforts and Challenges (open access)

Recovering Iraq's Assets: Preliminary Observations on U.S. Efforts and Challenges

Testimony issued by the General Accounting Office with an abstract that begins "Rebuilding Iraq is a U.S. national security priority. Billions of dollars are needed for Iraq's reconstruction. The U.S. government and the international community have undertaken important efforts to recover the assets of the former regime and return them to the Iraqi people. In this testimony, GAO will present its preliminary observations on the recovery effort. Specifically, GAO (1) updates its estimate of the revenues diverted from the Oil for Food Program, (2) describes the U.S. government agencies working on the asset recovery effort, (3) discusses the results of U.S. efforts, and (4) highlights challenges that the United States faces in recovering Iraqi assets."
Date: March 18, 2004
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Federal Financial Assistance: Preliminary Observations on Assistance Provided to AIG (open access)

Federal Financial Assistance: Preliminary Observations on Assistance Provided to AIG

Testimony issued by the Government Accountability Office with an abstract that begins "The Board of Governors of the Federal Reserve System (Federal Reserve) and the Department of the Treasury (Treasury) have made available over $182 billion in assistance to American International Group (AIG) to prevent its failure. However, questions have been raised about the goals of the assistance and how it is being monitored. Also, because AIG is generally known for its insurance operations, questions exist about the effect of the assistance on certain insurance markets. This statement provides preliminary findings on (1) the goals and monitoring of federal assistance to AIG and challenges to AIG's repayment of the assistance; and (2) the potential effects of the federal assistance on the U.S. commercial property/casualty insurance market. GAO's work on these issues is ongoing. To date, we have reviewed relevant documents on the assistance and ongoing operations of AIG, as well as documents issued by the Federal Reserve and Treasury. We also interviewed officials from these organizations as well as industry participants (competitors, brokers, and customers) and insurance regulators, among others."
Date: March 18, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Private Pensions: Multiemployer Pensions Face Key Challenges to Their Long-Term Prospects (open access)

Private Pensions: Multiemployer Pensions Face Key Challenges to Their Long-Term Prospects

Testimony issued by the General Accounting Office with an abstract that begins "Multiemployer defined benefit pension plans, which are created by collective bargaining agreements covering more than one employer and generally operated under the joint trusteeship of labor and management, provide coverage to over 9.7 million of the 44 million participants insured by the Pension Benefit Guaranty Corporation (PBGC). The recent termination of several large single-employer plans--plans sponsored by individual firms--has led to millions of dollars in benefit losses for thousands of workers and left PBGC, their public insurer, an $11.2 billion deficit as of September 30, 2003. The serious difficulties experienced by these single-employer plans have prompted questions about the health of multiemployer plans. This testimony provides information on differences between single employer and multiemployer pension plans, recent trends in the funding of multiemployer pension plans and worker participation in those plans, and factors that may pose challenges to the future prospects of multiemployer plans. GAO will soon release a separate report on multiemployer pension issues."
Date: March 18, 2004
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Catalyzed Water Oxidation by Solar Irradiation of Band-Gap-Narrowed Semiconductors (Part 2. Overview). (open access)

Catalyzed Water Oxidation by Solar Irradiation of Band-Gap-Narrowed Semiconductors (Part 2. Overview).

The objectives of this report are: (1) Investigate the catalysis of water oxidation by cobalt and manganese hydrous oxides immobilized on titania or silica nanoparticles, and dinuclear metal complexes with quinonoid ligands in order to develop a better understanding of the critical water oxidation chemistry, and rationally search for improved catalysts. (2) Optimize the light-harvesting and charge-separation abilities of stable semiconductors including both a focused effort to improve the best existing materials by investigating their structural and electronic properties using a full suite of characterization tools, and a parallel effort to discover and characterize new materials. (3) Combine these elements to examine the function of oxidation catalysts on Band-Gap-Narrowed Semiconductor (BGNSC) surfaces and elucidate the core scientific challenges to the efficient coupling of the materials functions.
Date: March 18, 2008
Creator: Fujita, E.; Khalifah, P.; Lymar, S.; Muckerman, J. T. & Rodriguez, J.
Object Type: Article
System: The UNT Digital Library
TRANSITION STATE FOR THE GAS-PHASE REACTION OF URANIUM HEXAFLUORIDE WITH WATER (open access)

TRANSITION STATE FOR THE GAS-PHASE REACTION OF URANIUM HEXAFLUORIDE WITH WATER

Density Functional Theory and small-core, relativistic pseudopotentials were used to look for symmetric and asymmetric transitions states of the gas-phase hydrolysis reaction of uranium hexafluoride, UF{sub 6}, with water. At the B3LYP/6-31G(d,p)/SDD level, an asymmetric transition state leading to the formation of a uranium hydroxyl fluoride, U(OH)F{sub 5}, and hydrogen fluoride was found with an energy barrier of +77.3 kJ/mol and an enthalpy of reaction of +63.0 kJ/mol (both including zero-point energy corrections). Addition of diffuse functions to all atoms except uranium led to only minor changes in the structure and relative energies of the reacting complex and transition state. However, a significant change in the product complex structure was found, significantly reducing the enthalpy of reaction to +31.9 kJ/mol. Similar structures and values were found for PBE0 and MP2 calculations with this larger basis set, supporting the B3LYP results. No symmetric transition state leading to the direct formation of uranium oxide tetrafluoride, UOF{sub 4}, was found, indicating that the reaction under ambient conditions likely includes several more steps than the mechanisms commonly mentioned. The transition state presented here appears to be the first published transition state for the important gas-phase reaction of UF{sub 6} with water.
Date: March 18, 2008
Creator: Garrison, S & James Becnel, J
Object Type: Article
System: The UNT Digital Library
Cleanup Verification Package for the 118-F-8:4 Fuel Storage Basin West Side Adjacent and Side Slope Soils (open access)

Cleanup Verification Package for the 118-F-8:4 Fuel Storage Basin West Side Adjacent and Side Slope Soils

This cleanup verification package documents completion of remedial action, sampling activities, and compliance with cleanup criteria for the 118-F-8:4 Fuel Storage Basin West Side Adjacent and Side Slope Soils. The rectangular-shaped concrete basin on the south side of the 105-F Reactor building served as an underwater collection, storage, and transfer facility for irradiated fuel elements discharged from the reactor.
Date: March 18, 2008
Creator: Habel, L. D.
Object Type: Report
System: The UNT Digital Library
THE USE OF VAPOR EXTRACTION SYSTEM AND ITS SUBSEQUENT REDUCTION OF WORKER EXPOSURE TO CARBON TETRACHLORIDE DURING RETRIEVAL OF HANFORDS LEGACY WASTE (open access)

THE USE OF VAPOR EXTRACTION SYSTEM AND ITS SUBSEQUENT REDUCTION OF WORKER EXPOSURE TO CARBON TETRACHLORIDE DURING RETRIEVAL OF HANFORDS LEGACY WASTE

The Hanford Site is a decommissioned nuclear productions complex located in south eastern Washington and is operated by the Department of Energy (DOE). From 1955 to 1973, carbon tetrachloride (CCl{sub 4}), used in mixtures with other organic compounds, was used to recover plutonium from aqueous streams at Z Plant located on the Hanford Site. The aqueous and organic liquid waste that remained at the end of this process was discharged to soil columns in waste cribs located near Z Plant. Included in this waste slurry along with CCl{sub 4} were tributyl phosphate, dibutyl butyl phosphate, and lard oil. (Truex et al., 2001). In the mid 1980's, CCl{sub 4} was found in the unconfined aquifer below the 200 West Area and subsequent ground water monitoring indicated that the plume was widespread and that the concentrations were increasing. It has been estimated that approximately 750,000 kg (826.7 tons) of CCl{sub 4} was discharged to the soil from 1955 to 1973. (Truex et al., 2001). With initial concentration readings of approximately 30,000 parts per million by volume (ppmv) in one well field alone, soil vapor extraction began in 1992 in an effort to remove the CCl{sub 4} from the soil. (Rohay, 1999). Since …
Date: March 18, 2008
Creator: DA, PITTS
Object Type: Article
System: The UNT Digital Library
Properties of Transition Metal Atoms and Ions (open access)

Properties of Transition Metal Atoms and Ions

Accomplishments of this project include: (1) improvement of the accuracy and efficiency of the RCI methodology to permit it to tackle almost all TM properties, and making good progress in extending these gains to the RE. Our improvements have stimulated improvements in the GRASP package, done by Froese Fischer. RCI efficiency gains are estimated to be {approx} 200x since the start of the project - about 10x from hardware improvements (originally DOE funded) and about 20x from software improvements. The net result is that currently the longest runs don't exceed 1 day. (2) identification and removal of systematic errors in several TM properties. To some extent, the PI became a 'court of last resort' for experimenters who wondered why certain theoretical-experimental discrepancies existed. Auxiliary analysis codes were written and successfully used to improve the systematic understanding of correlation effects in TM and RE. This improved efficiency and a priori understanding of what new projects might involve. [Unsurprisingly, there are several cases which the PI was unable to resolve. Work on these is unpublished]. (3) education and training of graduate students and postdocs.
Date: March 18, 2008
Creator: Donald, Beck, R.
Object Type: Report
System: The UNT Digital Library
Catalyzed Water Oxidation by Solar Irradiation of Band-Gap-Narrowed Semiconductors (Part 1. Overview). (open access)

Catalyzed Water Oxidation by Solar Irradiation of Band-Gap-Narrowed Semiconductors (Part 1. Overview).

The objectives of this report are: (1) Investigate the catalysis of water oxidation by cobalt and manganese hydrous oxides immobilized on titania or silica nanoparticles, and dinuclear metal complexes with quinonoid ligands in order to develop a better understanding of the critical water oxidation chemistry, and rationally search for improved catalysts. (2) Optimize the light-harvesting and charge-separation abilities of stable semiconductors including both a focused effort to improve the best existing materials by investigating their structural and electronic properties using a full suite of characterization tools, and a parallel effort to discover and characterize new materials. (3) Combine these elements to examine the function of oxidation catalysts on Band-Gap-Narrowed Semiconductor (BGNSC) surfaces and elucidate the core scientific challenges to the efficient coupling of the materials functions.
Date: March 18, 2008
Creator: Fujita, E.; Khalifah, P.; Lymar, S.; Muckerman, J. T. & Rodgriguez, J.
Object Type: Article
System: The UNT Digital Library
41. DISCOVERY, SEARCH, AND COMMUNICATION OF TEXTUAL KNOWLEDGE RESOURCES IN DISTRIBUTED SYSTEMS a. Discovering and Utilizing Knowledge Sources for Metasearch Knowledge Systems (open access)

41. DISCOVERY, SEARCH, AND COMMUNICATION OF TEXTUAL KNOWLEDGE RESOURCES IN DISTRIBUTED SYSTEMS a. Discovering and Utilizing Knowledge Sources for Metasearch Knowledge Systems

Advanced Natural Language Processing Tools for Web Information Retrieval, Content Analysis, and Synthesis. The goal of this SBIR was to implement and evaluate several advanced Natural Language Processing (NLP) tools and techniques to enhance the precision and relevance of search results by analyzing and augmenting search queries and by helping to organize the search output obtained from heterogeneous databases and web pages containing textual information of interest to DOE and the scientific-technical user communities in general. The SBIR investigated 1) the incorporation of spelling checkers in search applications, 2) identification of significant phrases and concepts using a combination of linguistic and statistical techniques, and 3) enhancement of the query interface and search retrieval results through the use of semantic resources, such as thesauri. A search program with a flexible query interface was developed to search reference databases with the objective of enhancing search results from web queries or queries of specialized search systems such as DOE's Information Bridge. The DOE ETDE/INIS Joint Thesaurus was processed to create a searchable database. Term frequencies and term co-occurrences were used to enhance the web information retrieval by providing algorithmically-derived objective criteria to organize relevant documents into clusters containing significant terms. A thesaurus provides …
Date: March 18, 2008
Creator: Zamora, Antonio
Object Type: Report
System: The UNT Digital Library
Ecology of Juvenile Salmonids in Shallow Tidal Freshwater Habitats in the Vicinity of the Sandy River Delta, Lower Columbia River, 2007 (open access)

Ecology of Juvenile Salmonids in Shallow Tidal Freshwater Habitats in the Vicinity of the Sandy River Delta, Lower Columbia River, 2007

This document is the first annual report for the study titled “Ecology of Juvenile Salmonids in Shallow Tidal Freshwater Habitats in the Vicinity of the Sandy River Delta in the Lower Columbia River.” Hereafter, we refer to this research as the Tidal Freshwater Monitoring (TFM) Study. The study is part of the research, monitoring, and evaluation effort developed by the Action Agencies (Bonneville Power Administration, U.S. Army Corps of Engineers, U.S. Bureau of Reclamation) in response to obligations arising from the Endangered Species Act as a result of operation of the Federal Columbia River Power System (FCRPS). The project is performed under the auspices of the Northwest Power and Conservation Council’s Columbia Basin Fish and Wildlife Program.
Date: March 18, 2008
Creator: Sobocinski, Kathryn L.; Johnson, Gary E.; Sather, Nichole K.; Storch, Adam; Jones, Tucker A.; Mallette, Christine et al.
Object Type: Report
System: The UNT Digital Library
Remaining Sites Verification Package for the 100-F-26:15 Miscellaneous Pipelines Associated with the 132-F-6, 1608-F Waste Water Pumping Station, Waste Site Reclassification Form 2007-031 (open access)

Remaining Sites Verification Package for the 100-F-26:15 Miscellaneous Pipelines Associated with the 132-F-6, 1608-F Waste Water Pumping Station, Waste Site Reclassification Form 2007-031

The 100-F-26:15 waste site consisted of the remnant portions of underground process effluent and floor drain pipelines that originated at the 105-F Reactor. In accordance with this evaluation, the verification sampling results support a reclassification of this site to Interim Closed Out. The results of verification sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.
Date: March 18, 2008
Creator: Dittmer, L. M.
Object Type: Report
System: The UNT Digital Library
Pulse Length Control in an X-Ray FEL by Using Wakefields (open access)

Pulse Length Control in an X-Ray FEL by Using Wakefields

For the users of the high-brightness radiation sources of free-electron lasers it is desirable to reduce the FEL pulse length to 10 fs and below for time-resolved pump and probe experiments. Although it can be achieved by conventional compression methods for the electron beam or the chirped FEL pulse, the technical realization is demanding. In this presentation we study the impact of longitudinal wakefields in the undulator and how their properties can be used to reduced the amplifying part of the bunch to the desired length. Methods of actively controlling the wakefields are presented.
Date: March 18, 2008
Creator: Reiche, S.; Pellegrini, Claudio; Emma, P. & /SLAC, /UCLA
Object Type: Article
System: The UNT Digital Library