Sludge Batch 4 (SB4) is currently being processed in the Defense Waste Processing Facility (DWPF) using Frit 510. The slurry pumps in Tank 40 are experiencing in-leakage of bearing water, which is causing the sludge slurry in Tank 40 to become dilute at a rapid rate. Currently, the DWPF is removing this dilution water by performing caustic boiling during the Sludge Receipt and Adjustment Tank (SRAT) cycle. In order to alleviate prolonged SRAT cycle times, which may eventually impact canister production rates, the Liquid Waste Organization (LWO) performed a 100K gallon supernate decant of Tank 40 in April 2008. SRNL performed a supplemental glass variability study to support the April 2008 100K gallon decant incorporating the impact of coupled operations (addition of the Actinide Removal Process (ARP) stream). Recently LWO requested that SRNL assess the impact of a second decant (up to 100K gallon) to the Frit 510-SB4 system. This second decant occurred in June 2008. LWO provided nominal compositions on May 6, 2008 representing Tank 40 prior to the second decant, following the second decant, and the SB4 Heel prior to blending with Tank 51 to constitute SB5. Paper study assessments were performed for these options based on sludge-only …

This paper describes the design and operation of a compact, 2-MeV, S-band linear accelerator (linac) with variable energy tuning and short-pulse operation down to 15 ps with 100-A peak current. The design consists of a buncher cavity for short-pulse operation and two coupled resonator sections for acceleration. Single-pulse operation is accomplished through a fast injector system with a 219-MHz subharmonic buncher. The machine is intended to support a variety of applications, such as x-ray and electron beam diagnostic development, and recently, electron diffraction studies of phase transitions in shocked materials.

NREL's JEDI Wind model performed an analysis of wind-power-related economic development drivers. Economic development benefits for wind and coal were estimated using NREL's JEDI Wind and JEDI Coal models.

A letter report issued by the Government Accountability Office with an abstract that begins "In July 2004, GAO reported that the six Department of Veterans Affairs (VA) medical centers it audited lacked a reliable property control database and effective inventory policies and procedures. In July 2007, GAO reported that continuing internal control weaknesses over IT equipment at four case study locations at VA resulted in an increased risk of theft, loss, and misappropriation of IT equipment assets. GAO's two reports included 18 recommendations to improve internal control over IT equipment. GAO was asked to perform a follow-up audit to determine (1) whether VA has made progress in implementing GAO's prior recommendations for improving internal control over IT equipment and (2) the effectiveness of VA's current internal controls to prevent theft, loss, or misappropriation of IT equipment. GAO reviewed policies and other pertinent documentation, statistically tested IT equipment inventory controls at four geographically disparate locations, and interviewed VA officials."

Testimony issued by the Government Accountability Office with an abstract that begins "The Veterans Health Administration (VHA) has been using miscellaneous obligations for over 60 years to record estimates of obligations to be incurred at a later time. The large percentage of procurements recorded as miscellaneous obligations in fiscal year 2007 raised questions about whether proper controls were in place over the authorization and use of billions of dollars. GAO's testimony provides preliminary findings related to (1) how VHA used miscellaneous obligations during fiscal year 2007, and (2) whether the Department of Veterans' Affairs (VA) policies and procedures were designed to provide adequate controls over their authorization and use. GAO recently provided its related draft report to the Secretary of Veterans Affairs for review and comment and plans to issue its final report as a follow-up to this testimony. GAO obtained and analyzed available VHA data on miscellaneous obligations, reviewed VA policies and procedures, and reviewed a nongeneralizable sample of 42 miscellaneous obligations at three case study locations. GAO's related draft report includes four recommendations to strengthen internal controls governing the authorization and use of miscellaneous obligations, in compliance with applicable federal appropriations law and internal control standards."

This report provides a brief background on the veterans' health care system, followed by a discussion of the FY2009 Veterans Health Administration (VHA) budget request, and House and Senate Appropriation Committee action. The report concludes with a discussion of major VHA budget issues.

This report provides a brief legislative history of the Violence Against Women Act (VAWA) and an overview of the crimes addressed through VAWA. It concludes with a brief description of the most recent reauthorization of VAWA.

The countrate response of a gamma spectrometry system from a neutron radiation source behind a plane of moderating material doped with a nuclide of a large radiative neutron capture cross-section exhibits a countrate response analogous to a gamma radiation source at the same position from the detector. Using a planar, surface area of the neutron moderating material exposed to the neutron radiation produces a larger area under the prompt gamma ray peak in the detector than a smaller area of dimensions relative to the active volume of the gamma detection system.

Unexpectedly high concentrations of volatile organic compounds (VOC) were discovered while drilling in the unconfined aquifer beneath the Hanford Site’s 300 Area during 2006. The discovery involved an interval of relatively finer-grained sediment within the unconfined aquifer, an interval that is not sampled by routine groundwater monitoring. Although VOC contamination in the unconfined aquifer has been identified and monitored, the concentrations of newly discovered contamination are much higher than encountered previously, with some new results significantly higher than the drinking water standards. The primary contaminant is trichloroethene, with lesser amounts of tetrachloroethene. Both chemicals were used extensively as degreasing agents during the fuels fabrication process. A biological degradation product of these chemicals, 1,2-dichloroethene, was also detected. To further define the nature and extent of this contamination, additional characterization drilling was undertaken during 2007. Four locations were drilled to supplement the information obtained at four locations drilled during the earlier investigation in 2006. The results of the combined drilling indicate that the newly discovered contamination is limited to a relatively finer-grained interval of Ringold Formation sediment within the unconfined aquifer. The extent of this contamination appears to be the area immediately east and south of the former South Process Pond. Samples …

In a future linear collider, such as the International Linear Collider (ILC), trains of high current, low emittance bunches will be accelerated in a linac before colliding at the interaction point. Asymmetries in the accelerating cavities of the linac will generate fields that will kick the beam transversely and degrade the beam emittance and thus the collider performance. In the main linac of the ILC, which is filled with TESLA-type superconducting cavities, it is the fundamental (FM) and higher mode (HM) couplers that are asymmetric and thus the source of such kicks. The kicks are of two types: one, due to (the asymmetry in) the fundamental RF fields and the other, due to transverse wakefields that are generated by the beam even when it is on axis. In this report we calculate the strength of these kicks and estimate their effect on the ILC beam. The TESLA cavity comprises nine cells, one HM coupler in the upstream end, and one (identical, though rotated) HM coupler and one FM coupler in the downstream end (for their shapes and location see Figs. 1, 2) [1]. The cavity is 1.1 m long, the iris radius 35 mm, and the coupler beam pipe radius …

This report describes wave, tidal, and in-stream energy generation technologies -- also referred to as hydrokinetic or marine energy. It discusses the recent changes in law aimed to clarify the federal role in ocean wave and renewable energy.

This report provides background information on the forces that most likely determine the path of the dollar exchange rate. The report also considers recent events in international markets for goods and assets as well as suggest what implications these forces carry for the state of the U.S. economy and for economic policy.

The report documents recent changes in wetland acres. The U.S. Fish and Wildlife Service released its most recent periodic survey of changes in wetland acreage nationwide in March 2006. Covering 1998 to 2004, it concluded that during this time period there was a small net gain in overall wetland acres for the first time that this survey has been conducted. Others caution, however, that much of this gain was in ponds, rather than natural wetlands.

This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

This poster shows the benefits of integrating a workflow management system with logging and log mining capabilities. By combing two existing, mature technologies: Pegasus-WMS and Netlogger, we are able to efficiently process execution logs of earthquake science workflows consisting of hundreds of thousands to one million tasks. In particular we show results of processing logs of CyberShake, a workflow application running on the TeraGrid. Client-side tools allow scientists to quickly gather statistics about a workflow run and find out which tasks executed, where they were executed, what was their runtime, etc. These statistics can be used to understand the performance characteristics of a workflow and help tune the execution parameters of the workflow management system. This poster shows the scalability of the system presenting results of uploading task execution records into the system and by showing results of querying the system for overall workflow performance information.

This report identifies the names, commmittee assignments, dates of service, and (for Representatives) districts of the 245 women who have served in Congress.

The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) formerly operated a grain storage facility at Milford, Nebraska. In May 2008, the CCC/USDA directed the Environmental Science Division of Argonne National Laboratory, as its technical consultant, to develop a work plan for a targeted investigation at the Milford site. The purpose of the targeted investigation is to assess the current extent and configuration of the carbon tetrachloride plume downgradient from the former CCC/USDA facility and proximal to the banks of the Big Blue River, which borders the area of concern to the east, southeast, and northeast. In 1995, carbon tetrachloride contamination was detected by the Nebraska Department of Health and Human Services in a private drinking water well and a livestock well 1.25 mi south of Milford (Figure 1.1). The Trojan drinking water well is located directly downgradient (approximately 300 ft east) of the former CCC/USDA facility. Low levels of carbon tetrachloride contamination were also found in the Troyer livestock well, approximately 1,200 ft north of the former CCC/USDA facility.

Congress has comprehensively dealt with the legal effect of World Trade Organization (WTO) agreements and dispute settlement results in the United States in the Uruguay Round Agreements Act (URAA), P.L. 103-465, which provides that domestic law prevails over conflicting provisions of WTO agreements and prohibits private remedies based on alleged violations of these agreements. This report analyzes the URAA in detail and outlines various WTO decisions and their effect on U.S. trade law and policy.

In July of 2008, a Ministerial conference was held in Geneva to resolve the remaining outstanding issues in the Doha Round negotiations. This report reviewed the status of agricultural negotiations for domestic support, market access, export subsidies, and the potential implications for U.S. agriculture.

This report provides an overview of Zimbabwe's March 2008 elections. The report discusses the power-sharing agreement, the transitional government, cholera outbreak, international reactions, and U.S. policy on Zimbabwe.