In conjunction with efforts to develop novel actinide extractants exhibiting solubility in supercritical carbon dioxide, the effect of adding silicon-based functionalities to diphosphonic acids has been investigated. Specifically, a series of silyl-substituted diphosphonic acids has been prepared and characterized, and their aggregation and metal ion extraction properties compared with alkyl-substituted diphosphonic acids, reagents previously demonstrated to be effective extractants of actinides from acidic aqueous media into various organic solvents. In addition, the influence of the number of methylene groups bridging the phosphorus atoms of the diphosphonic acids on their extraction behavior has been investigated. Variations in the extraction behavior of the compounds arising from differences in the number of bridging methylene groups have been shown to be attributable to a combination of factors, in particular, the aggregation state of the ligand, the size of the chelate rings formed upon complexation, the basicity of the phosphoryl group and the relative acidities of the ligands.

Testimony issued by the General Accounting Office with an abstract that begins "This testimony discusses the Federal Aviation Administration's (FAA) efforts to modernize the nation's air traffic control (ATC) system and its relationship to other initiatives to address the escalating crises of insufficient capacity facing the aviation industry. Specifically, GAO reviews the (1) extent of the delay and congestion problems and the contribution of the ATC system to them, (2) progress and problems encountered in FAA's ATC modernization program, and (3) importance of a continued focus on delivering ATC equipment and on human capital issues as policymakers seek to address delays and congestion. GAO found that the national airspace system (NAS) is facing significant capacity problems. Last year, more than 25 percent of nationwide flights were canceled, delayed or diverted. These actions affected 163 million passengers who, on average, were delayed almost an hour. Inefficiencies in the ATC system contribute to the delays and congestion. Modernizing equipment, along with other changes in the ATC system, is expected to help increase the capacity of NAS between 5 and 15 percent. However, improvements from FAA's modernization program have fallen short so far. Although FAA has installed new equipment to provide the necessary …

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We report observations of the first low-to-high (L-H) confinement mode transitions in the National Spherical Torus Experiment (NSTX). The H-mode energy confinement time increased over reference L-mode discharges transiently by 100-300%, as high as {approximately}150 ms. This confinement time is {approximately}1.8-2.3 times higher than predicted by a multi-machine ELM-free H-mode scaling. This achievement extends the H-mode window of fusion devices down to a record low aspect ratio (R/a) {approximately} 1.3, challenging both confinement and L-H power thresholds scalings based on conventional aspect ratio tokamaks.

The following are proposed activities for quarter 3 (12/15/00-3/14/01): (1) Conduct TGA and fuel characterization studies - Task 1; (2) Continue to perform re-burn experiments. - Task 2; (3) Design fixed bed combustor. - Task 3; and (4) Modify the PCGC2 code to include moisture evaporation model - Task 4. The following were achieved During Quarter 3 (12/15/0-3/14/01): (1) Conducted TGA and Fuel Characterization studies (Appendix I). A comparison of -fuel properties, TGA traces etc is given in Appendix I. Litter has 3 and 6 times more N compared to coal on mass and heat basis. The P of litter is almost 2 % (Task 1). Both litter biomass (LB) and feedlot biomass (FB) have been pulverized. The size distributions are similar for both litter and FB in that 75 % pass through 150 {micro}m sieve while for coal 75 % pass through 60 {micro}m sieve. Rosin Rammler curve parameters are given. The TGA characteristics of FB and LB are similar and pyrolysis starts at 100 C below that of coal; (2) Reburn experiments with litter and with FB have been performed (Appendix II) -Task 2. Litter is almost twice effective (almost 70--90 % reduction) compared to coal in reducing …

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

Testimony issued by the General Accounting Office with an abstract that begins "Fish populations in many commercial fisheries are declining, causing a growing imbalance between the number of vessels in fishing fleets and the number of fish available to catch. Federally funded fishery buyback programs are one tool available for managers to bring the number of vessels and the number of fish back into balance. Buyback programs need to be carefully designed if they are to sucessfully sustain fisheries. If buyback programs are not accompanied by other measures that reduce incentives to reenter a fishery, capacity reductions resulting from buybacks will erode. Unless a buyback program prevents it, fishermen can use previously inactive vessels or permits and reenter the buyback fishery. By themselves, the buyback programs do not address a root cause of overfishing, which is called the "race to fish." In most fisheries, fishermen have an incentive to increase their fishing capacity to catch fish before someone else does or use their existing capacity more intensely. Plans for evaluating the results of buybacks should also be considered when these programs are being designed. Measuring and evaluating results can identify important lessons that can improve the effectiveness of future buybacks. …

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

A letter report issued by the General Accounting Office with an abstract that begins "According to the current National Military Strategy the United States should be prepared to fight and win two nearly simultaneous wars in different parts of the world. Military policy calls for each of the services to acquire and maintain enough war material inventories to sustain a two-war scenario until the industrial base can resupply our armed forces. Because of limitations in the Army's process for determining war reserve spare parts requirements, however, the accuracy of the war reserve spare parts requirements and funding needs are uncertain. These limitations include (1) not using the best available data on the rate at which spare parts would be consumed during wartime for its war reserve spare parts requirements calculations, (2) having a potential mismatch between the Army's process for determining spare parts requirements for war reserves and how the Army plans to repair equipment on the battlefield, and (3) lacking a fact-based assessment of industrial base capacity to provide needed parts for the two-war scenario. Uncertainties are likely to persist for some time as the Army contemplates a significant transformation of its forces and other changes are considered affecting …

Efforts to develop fibrous ceramic monoliths for primarily structural applications are described. Fibrous monoliths (FMs) are relatively insensitive to flaws and can exhibit graceful failure and large work-of-fracture values. They can be inexpensively produced in a wide variety of forms by conventional ceramic processing methods such as extrusion. The FM project that is the subject of this report involved investigations to (1) develop FMs that can be pressureless sintered rather than hot pressed, (2) develop technologies to continuously extrude FM filaments and inexpensively fabricate FM components, (3) evaluate the performance of commercial and new, prototype FMs, (4) develop micromechanical models to guide the design of new FMs and predict their properties, and (5) forge collaborations with industry to produce useful parts.

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

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

Testimony issued by the General Accounting Office with an abstract that begins "This testimony reviews GAO's fiscal year 2000 accomplishments, fiscal year 2001 plans and future challenges, and fiscal year 2002 budget request. In fiscal year 2000, GAO saved taxpayers more than $23 billion. GAO's work also resulted in improved public health and safety, better national security, and stronger financial management and information systems. During fiscal year 2001, GAO will continue to focus on the major issues facing Congress, including the solvency of Social Security, education, economic development, Medicare reform, and national security. Internally, GAO will continue to take steps to address its own two major management challenges: human capital and information technology. To fully support Congress, GAO is requesting a budget of about $430.3 million for fiscal year 2000. This funding will allow GAO to staff and support its approved 3,275 full-time equivalent staffing level and sustain existing services to Congress."

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

This paper addresses the question of how to handle irreducible regions during optimization, which has become even more relevant for contemporary processors since recent VLIW-like architectures highly rely on instruction scheduling. The contributions of this paper are twofold. First, a method of optimized node splitting to transform irreducible regions of control flow into reducible regions is derived. This method is superior to approaches previously published since it reduces the number of replicated nodes by comparison. Second, three methods that handle regions of irreducible control flow are evaluated with respect to their impact on compiler optimizations: traditional and optimized node splitting as well as loop analysis through DJ graphs. Measurements show improvements of 1-40% for these methods of handling irreducible loop over the unoptimized case.

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