The objective of this study was to measure the leaching and adsorption characteristics of uranium in six near-surface sediment samples collected from the 300 Area of the Hanford Site. Scanning electron micrographs of the samples showed that the uranium contamination in the sediments is most likely present as co-precipitates and/or discrete uranium particles. Molecular probe techniques also confirm the presence of crystalline discrete uranium bearing phases. In all cases, the uranium is present as oxidized uranium (uranyl [U(VI)]). Results from the column leach tests showed that uranium leaching did not follow a constant solubility paradigm. Four of the five contaminated sediments showed a large near instantaneous release of a few percent of the total uranium followed by a slower continual release. Steady-state uranium leachate concentrations were never measured and leaching characteristics and trends were not consistent among the samples. Dissolution kinetics were slow, and the measured leach curves most likely represent a slow kinetically controlled desorption or dissolution paradigm. Batch adsorption experiments were performed to investigate the effect of pH and uranium and carbonate solution concentrations on uranium adsorption onto the uncontaminated sediment. Uranium adsorption Kd values ranged from 0 to > 100 ml/g depending on which solution parameter was …

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.

Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.

This is a select chronology of, and a finding guide for information on, congressional and presidential actions and documents related to major budget events in calendar year 2002, covering the FY2003 budget. Brief information is provided for the President’s budget, congressional budget resolutions, appropriations measures (regular, continuing, supplementals, and rescissions), budget reconciliation, House and Senate votes, line-item vetoes, publications, testimony, charts, and tables.

A briefing report issued by the General Accounting Office with an abstract that begins "Congress responded to the attacks of September 11, 2001, with dramatic funding increases to combat terrorism. Even before these attacks, Congress was concerned about increased funding in this area, and based on findings from a 1997 GAO report, mandated that the Office of Management and Budget (OMB) report annually on funding to combat terrorism. In this review, GAO was asked to analyze such funding trends, describe difficulties in coordinating combating terrorism budgets, assess data reported to Congress, and describe the executive branch's efforts to maximize the effective use of combating terrorism funds. The review relied on OMB's definition of "combating terrorism" to include both homeland security and overseas combating terrorism missions."

This report contains information regarding the Current Economic Conditions, Recent Macroeconomic Developments, Posture of Monetary and Fiscal Policy, Summary of Current Developments, Sources of GDP Growth, Economic Forecasts 2001, and Promotion of Economic Growth. The report also presents statistics regarding the Growth Rate of Real GDP v. Final Sales, Civilian Unemployment Rate, Rate of Change in the Consumer Price Index, Rate of Change in the GDP Deflators, Rate of Change in Labor Costs, U.S. Foreign Trade Deficit, Alternative Measures of Fiscal Policy, The Growth Rates of the Monetary Aggregates, etc.

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.

Jazz concert performed at the UNT College of Music Winspear Hall.

We are investigating the evaporation of pore water representative of the designated high-level-nuclear-waste repository at Yucca Mountain, NV to predict the range of brine compositions that may contact waste containers. These brines could form potentially corrosive thin films on the containers and impact their long-term integrity. Here we report the geochemistry of a relatively complex synthetic Topopah Spring Tuff pore water that was progressively evaporated in a series of experiments. The experiments were conducted in a closed vessel, heated to 95 C, and purged with atmospheric CO{sub 2}. Aqueous samples of the evaporating solution were taken and analyzed to determine the evolving water chemistry, and the final solid precipitate was analyzed by X-ray diffraction. The synthetic Topopah Spring Tuff water evolved towards a complex brine that contains about 3 mol% SO{sub 4}, and 2 mol% Ca, 3 mol% K, 5 mol% NO{sub 3}, 40 mol% Cl, and 47 mol% Na. Trends in the solution data and identification of CaSO{sub 4} solids (anhydrite and bassanite) suggest that fluorite, carbonate, sulfate, and Mg-silicate precipitation minimize the corrosion potential of ''sulfate type pore water'' by removing F, Ca, and Mg during the early stages of evaporation.

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

Funeral program for Joseph Lee Strait, born May 14, 1961 and died November 21, 2002. The funeral was held November 26, 2002 at Greater Evangelist Temple Church of God in Christ, officiated by Superintendent C. W. Steward. Funeral arrangements were made through the Lewis Funeral Home and he was buried in Meadowlawn Memorial Park in San Antonio, Texas.

Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.

OAK B204 The objective of this project is to demonstrate the feasibility and effectiveness of using full-scale virtual reality simulation in the design, construction, and maintenance of future nuclear power plants. Specifically, this project will test the suitability of Immersive Projection Display (IPD) technology to aid engineers in the design of the next generation nuclear power plant and to evaluate potential cost reductions that can be realized by optimization of installation and construction sequences. The intent is to see if this type of information technology can be used in capacities similar to those currently filled by full-scale physical mockups.

The transformation of gibbsite to boehmite in strongly caustic solutions was studied using quantitative X-ray diffraction, Fourier transform infrared spectroscopy, and transmission electron microscopy techniques. Under hydrothermal conditions we identified two transformation mechanisms; dehydration and in-situ nucleation and dissolution and nucleation. If the reaction container was not completely sealed, dehydration of gibbsite followed by in-situ nucleation of boehmite was the preferred mechanism. Boehmite produced fibrous boehmite particles within the amorphous matrix of the decomposed gibbsite particles, which exhibited a poorly crystalline structure and smaller size than the initial gibbsite particles. In a closed environment, the preferred mechanism was the dissolution of gibbsite along (001) planes. The final boehmite particles were not morphologically related to the initial gibbsite particles and could be many times larger than the gibbsite particles.

This report presents an abbreviated legislative history of the Homeland Security Act of 2002, providing information on the sequence of events leading up to passage and references to related legislative proposals.

Transport mirrors within the National Ignition Facility, a 192-beam 4-MJ fusion laser at 1053 nm, will be exposed to backscattered light from plasmas created from fusion targets and backlighters. This backscattered light covers the UV and visible spectrum from 351-600 nm. The transport mirror BK7 substrates will be intentionally solarized to absorb >95% of the backscattered light to prevent damage to the metallic mechanical support hardware. Solarization has minimal impact on the 351- and 1053-nm laser-induced damage threshold or the reflected wavefront of the multilayer hafnia silica coating. Radiation sources of various energies were examined for BK7 darkening efficiency within the UV and visible region with 1.1 MeV gamma rays from a Cobalt 60 source ultimately being selected. Finally, bleaching rates were measured at elevated temperatures to generate a model for predicting the lifetime at ambient conditions (20 C), before solarized BK7 substrates exceed 5% transmission in the UV and visible region. Over a 30-mm thickness, BK7 glass will bleach in 10 years to 5% transmission at 600 nm, the most transmissive wavelengths over the 351-600 nm regions.

Solute effect on the creep resistance of two-phase lamellar TiAl with an ultrafine microstructure creep-deformed in a low-stress (LS) creep regime [where a linear creep behavior was observed] has been investigated. The resulted deformation substructure and in-situ TEM experiment revealed that interface sliding by the motion of pre-existing interfacial dislocations is the predominant deformation mechanism in LS creep regime. Solute segregation at lamellar interfaces and interfacial precipitation caused by the solute segregation result in a beneficial effect on the creep resistance of ultrafine lamellar TiAl in LS creep regime.

None

Report discussing the most recent political developments in Iran, including who the country offers support to and opposes. The report also makes note of U.S. policy regarding these developments, as well as the measures put in place to ensure continued peaceful relations between the two countries.

This report is intended to provide a brief overview of the various potential restrictions or regulations on lobbying activities of non-profit organizations. Public charities, social welfare organizations, religious groups, and other non-profit, tax-exempt organizations are not generally prohibited from engaging in all lobbying or public policy advocacy merely because of their tax-exempt status.

This report is intended to provide a brief overview of the various potential restrictions or regulations on lobbying activities of non-profit organizations. Public charities, social welfare organizations, religious groups, and other non-profit, tax-exempt organizations are not generally prohibited from engaging in all lobbying or public policy advocacy merely because of their tax-exempt status.

One of the current priorities within the Department of Energy (DOE) complex is the stabilization, packaging and storage of plutonium-bearing materials. The packaging is key to the safe long-term handling and storage of these materials. Packaging consists of placing the stabilized materials into a set of two nested stainless steel containers. Each container is seal-welded, providing double containment of the plutonium materials. The outer container is designated as the primary barrier to the release of the materials to the environment. An initial, full scope diagnostic analysis of the equipment, welding materials / consumables and process conditions identified the primary cause of the porosity to be related to geometry at the root of the weld joint preparation. A volume of gas is trapped between the advancing weld puddle and the start of the weld, at weld tie-in, and incorporated into the weld during puddle solidification. Figure 5 illustrates the basic geometric conditions contributing to the porosity. This paper describes the efforts to analyze and understand / quantify the interaction between the weld-joint geometry and formation of porosity.