A letter report issued by the Government Accountability Office with an abstract that begins "In April 2005, GAO reported on factors affecting the timely production of up-armored high-mobility multi-purpose wheeled vehicles (HMMWV) and add-on armor kits for HMMWVs, as well as other items critically needed by deployed forces during Operation Iraqi Freedom. Due to high interest by Congress and the public regarding vehicle armor, GAO initiated this subsequent engagement to examine issues affecting the production and installation of armor for medium and heavy trucks. The objectives were to (1) determine the extent to which truck armor was produced and installed to meet identified requirements, (2) identify what factors affected the time to provide truck armor, and (3) identify what actions the Department of Defense (DOD) and the Army have taken to improve the timely availability of truck armor. To address these objectives, GAO collected and analyzed supply data for medium and heavy tactical trucks used by Army forces."

A letter report issued by the Government Accountability Office with an abstract that begins "Preventing radioactive material from being smuggled into the United States is a key national security objective. To help address this threat, in October 2002, DHS began deploying radiation detection equipment at U.S. ports-of-entry. This report reviews recent progress DHS has made (1) deploying radiation detection equipment, (2) using radiation detection equipment, (3) improving the capabilities and testing of this equipment, and (4) increasing cooperation between DHS and other federal agencies in conducting radiation detection programs."

A letter report issued by the Government Accountability Office with an abstract that begins "The federal government is placing greater emphasis on thinning vegetation on public lands to reduce the risk of wildland fire. To help defray the cost of thinning efforts, it also is seeking to stimulate a market for the resulting material, including the smaller trees, limbs, and brush--referred to as woody biomass--that traditionally have had little or no commercial value. As GAO has reported in the past, the increased use of woody biomass faces obstacles, including the high cost of harvesting and transporting it and an unpredictable supply in some locations. Nevertheless, some entities, such as schools and businesses, are utilizing the material, potentially offering insights for broadening its use. GAO agreed to (1) identify key factors facilitating the use of woody biomass among selected users, (2) identify challenges these users have faced in using woody biomass, and (3) discuss any insights that these findings may offer for promoting greater use of woody biomass. In responding to a draft of this report, the Departments of Agriculture, Energy, and the Interior all generally agreed with GAO's findings."

This report provides a concise historical account of the dispute over softwood lumber imports from Canada, summarizes the subsidy and injury evidence, and discusses current issues and events.

Newspaper clippings of an article about why a charity, Christ's Kitchen, is unable to accept donations of meat. There are advertisements and obituaries on the back of the clippings.

Newspaper clipping of an opinion article about a proposal to create "quiet zones" in Victoria, Texas. On the back of the clipping is part of a photo of a child looking up.

Newspaper clippings of an article about a Victoria City Council meeting on Tuesday, March 21, 2006, at which municipal noise control and other municipal issues were discussed. Other articles and advertisements are visible on the back of the clippings, including an article about Wal-Mart and an advertisement for Dick's Food Store.

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

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.

Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state and campus news along with advertising.

Fotografía de miembros del equipo de rifle aéreo del Cuerpo de Entrenamiento de Oficiales de la Reserva Junior en la Escuela Secundaria Paschal de Fort Worth durante una práctica. En la fotografía se ve a cuatro chicos, con el pelo cortado y con gafas de seguridad. Cada uno de ellos apunta con rifles de aire, de color rojo y azul y bronceado, a la derecha de la fotografía. Participan en un programa de educación premilitar que les permite viajar a Georgia para competir en un torneo nacional para ver si son los mejores del país.

Federal farm support, food assistance, agricultural trade, marketing, and rural development policies are governed by a variety of separate laws. Many of these laws periodically have been evaluated, revised, and renewed through an omnibus, multi-year farm bill. This report discusses the "farm bill" and it's components.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

This report describes information that has been gathered about impacts of Hurricanes Katrina and Rita on drinking water and wastewater treatment facilities and on ongoing efforts to assess damages and needs to repair and reconstruct damaged systems.

In support of the HB-Line Engineering agitator mixing project, flow pattern calculations have been made for a 90{sup o} apart and helical pitch agitator submerged in a flat tank containing dissolver baskets. The work is intended to determine maximum agitator speed to keep the dissolver baskets from contacting the agitator for the nominal tank liquid level. The analysis model was based on one dissolver basket located on the bottom surface of the flat tank for a conservative estimate. The modeling results will help determine acceptable agitator speeds and tank liquid levels to ensure that the dissolver basket is kept from contacting the agitator blade during HB-Line dissolver tank operations. The numerical modeling and calculations have been performed using a computational fluid dynamics approach. Three-dimensional steady-state momentum and continuity equations were used as the basic equations to estimate fluid motion driven by an agitator with four 90{sup o} pitched blades or three flat blades. Hydraulic conditions were fully turbulent (Reynolds number about 1 x 10{sup 5}). A standard two-equation turbulence model ({kappa},{var_epsilon}), was used to capture turbulent eddy motion. The commercial finite volume code, Fluent [5], was used to create a prototypic geometry file with a non-orthogonal mesh. Hybrid meshing was …

A controller for the third generation, 6 degree-of-freedom (DOF) piezoelectric translation stage shown in Figure 1 is presented. This was tested by monitoring all six coordinate motions using an orthogonal array of six, high-resolution capacitance gages. The full 6 DOF matrix transformations and controller block diagrams for this system have been measured and the system operated under closed loop control. Results of early experiments to determine the 21 open loop response functions as well as preliminary results showing the closed loop response for the 3 linear translations are presented in this abstract. The ultimate goal of this project is to incorporate this 6 DOF stage within a long range X-Y scanning system for nanometer pick-and-place capability over an area of 50 x 50 mm. The control strategy and early results from this system will be presented.

Spontaneous mixing of materials at unstably stratified interfaces occurs in a wide variety of atmospheric, oceanic, geophysical and astrophysical flows. The Rayleigh-Taylor instability, in particular, plays key roles in the death of stars, planet formation and the quest for controlled thermonuclear fusion. Despite its ubiquity, fundamental questions regarding Rayleigh-Taylor instability persist. Among such questions are: Does the flow forget its initial conditions? Is the flow self-similar? What is the value of the scaling constant? How does mixing influence the growth rate? Here we show results from a 3072{sup 3} grid-point Direct Numerical Simulation in an attempt to answer these and other questions. The data indicate that the scaling constant cannot be found by fitting a curve to the width of the mixing region (as is common practice) but can only be accurately obtained by recourse to the similarity equation for the growth rate. The data further establish that the ratio of kinetic energy to released potential energy is not constant, as has heretofore been assumed. The simulated flow reaches a Reynolds number of 32,000, far exceeding that of all previous simulations. The latter stages of the simulation reveal a weak Reynolds number dependence, which may have profound consequences for modeling …

The research and development programs in support of the Defense Waste Processing Facility (DWPF) and other high level waste vitrification processes require the use of both nonradioactive waste simulants and actual waste samples. The nonradioactive waste simulants have been used for laboratory testing, pilot-scale testing and full-scale integrated facility testing. Recent efforts have focused on matching the physical properties of actual sludge. These waste simulants were designed to reproduce the chemical and, if possible, the physical properties of the actual high level waste. This technical report documents a study of simulant production methods for high level waste simulated sludge and their impact on the physical properties of the resultant SRAT product. The sludge simulants used in support of DWPF have been based on average waste compositions and on expected or actual batch compositions. These sludge simulants were created to primarily match the chemical properties of the actual waste. These sludges were produced by generating manganese dioxide, MnO{sub 2}, from permanganate ion (MnO{sub 4}{sup -}) and manganous nitrate, precipitating ferric nitrate and nickel nitrate with sodium hydroxide, washing with inhibited water and then addition of other waste species. While these simulated sludges provided a good match for chemical reaction studies, they …

This paper discusses the use of computational fluid dynamics (CFD) methods to understand and characterize erosion of the floor and internal structures in the slurry mixing vessels in the Defense Waste Processing Facility. An initial literature survey helped identify the principal drivers of erosion for a solids laden fluid: the solids content of the working fluid, the regions of recirculation and particle impact with the walls, and the regions of high wall shear. A series of CFD analyses was performed to characterize slurry-flow profiles, wall shear, and particle impingement distributions in key components such as coil restraints and the vessel floor. The calculations showed that the primary locations of high erosion resulting from abrasion were at the leading edge of the coil guide, the tank floor below the insert plate of the coil guide support, and the upstream lead-in plate. These modeling results based on the calculated high shear regions were in excellent agreement with the observed erosion sites in both location and the degree of erosion. Loss of the leading edge of the coil guide due to the erosion damage during the slurry mixing operation did not affect the erosion patterns on the tank floor. Calculations for a lower …

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Between January 9-12, 2006 a series of experiments were performed on the DARHT-II injector to measure the beam's emittance. Part of these experiments were pepper-pot measurements. This note describes the analysis of the data, and our conclusions from the experiments.

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

Weekly newspaper from Yoakum, Texas that includes local, state, and national news along with advertising.