The response of a glass batch to heating is determined by the batch makeup and in turn determines the rate of melting. Batches formulated for a high-alumina nuclear waste to be vitrified in an all-electric melter were heated at a constant temperature-increase rate to determine changes in melting behavior in response to the selection of batch chemicals and silica grain-size as well as the addition of heat-generating reactants. The type of batch materials and the size of silica grains determine how much, if any, primary foam occurs during melting. Small quartz grains, 5 {micro}m in size, caused extensive foaming because their major portion dissolved at temperatures <800 C, contributing to the formation of viscous glass forming melt that trapped evolving batch gases. Primary foam did not occur in batches with larger quartz grains, {+-}75 {micro}m in size, because their major portion dissolved at temperatures >800 C when batch gases no longer evolved. The exothermal reaction of nitrates with sucrose was ignited at a temperature as low as 160 C and caused a temporary jump in temperature of several hundred degrees. Secondary foam, the source of which is oxygen from redox reactions, occurred in all batches of a limited composition variation …

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Annual financial report of the Angelina & Neches River Authority containing independently-audited financial information for fiscal year 2011, including statements of assets, expenses, revenues, and cash flows, with supplementary notes and information.

Maintaining the security of U.S. borders is a fundamental responsibility of the federal government. This report discusses the contribution of intelligence agencies to the border security efforts of the Department of Homeland Security, the Department of Defense, and other federal agencies that work in cooperation with state, local, and tribal law enforcement agencies. Much of the intelligence community's border security-related efforts are classified, however.

This report describes homegrown violent jihadists and the plots and attacks that have occurred since 9/11. "Homegrown" and "domestic" are terms that describe terrorist activity or plots perpetrated within the United States or abroad by American citizens, legal permanent residents, or visitors radicalized largely within the United States. The report also discusses the radicalization process and the forces driving violent extremist activity. It analyzes post-9/11 domestic jihadist terrorism and describes law enforcement and intelligence efforts to combat terrorism and the challenges associated with those efforts.

The characteristics of photoelectron microbunches emitted from a photocathode in response to laser irradiation determine many of the incident laser pulse requirements. RF photocathode designs based on grazing incidence of the irradiation benefit from the removal of launch optics from the electron beamline and enhanced absorption at Brewster angles. However, this also introduces two well known complexities in the laser pulse 'launch' requirements: (i) a transverse spatial anamorphism to guarantee that the projected transverse spatial profile of the irradiation is circular (in the plane of the photocathode) and (ii) a 'time slew' or tilted amplitude front on the laser pulse that is incident on the photocathode to guarantee that the temporal (longitudinal) profiles are synchronous across the entire transverse irradiation profile in the photocathode plane. A single diffraction grating can be used to fulfill these combined requirements. This reported work focuses on grating behavior only. It does not address imaging requirements associated with relayed optical transport from the grating to the photocathode. Because the grating is a highly dispersive optical element by design, the dispersive aspects of all launch requirements are important.

Roller Cam Positioners could support the LCLS undulator sections allowing micron sized alignment adjustment of each undulator in 5 degrees of freedom. The supports are kinematic with the number of degrees of freedom matched to the number of constraints. Ton loads are supported on simple ball bearings. Motion is intrinsically bounded. Positioning mechanisms are based on pure rolling motion with sub-micron hysteresis and micron resolution. This note describes a general purpose positioning mechanism suitable for undulator support.

Report on the feasibility of a water quality monitoring program on the lower Rio Grande River.

Transcript of a public hearing held by the Commission to Eliminate Child Abuse and Neglect Fatalities (CECANF) held December 7-8, 2015 in Herndon, Virginia. This hearing includes deliberation on recommendations to the Commission's final report to be delivered to the President and Congress.

This report provides a broad overview of the issues that may be relevant to any number of present and future challenges to agency action in federal court.

This document provides information on the distribution of more than $478 million in monthly sales tax revenue to local governments.

This report discusses in brief the current political state of the Democratic Republic of the Congo, as well as the crisis situation in eastern Congo that has displaced more than 250,000 civilians. It also describes U.S., U.N., and other international efforts to aid in resolving the crisis.

This report discusses the current political conditions of Rwanda, including a brief historical overview. The report also includes information about the poor human rights conditions in Rwanda and U.S. Rwanda relations.

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This report provides an overview of Title IX in general and the intercollegiate athletics regulations in particular, as well as a summary of the commission’s report and ED’s response and a discussion of legal challenges to the regulations and to the three-part test.

For more than a decade, various experts have expressed concerns about information-system security-often referred to as cybersecurity-in the United States and abroad. This report discusses that framework and proposals to amend more than 30 acts of Congress that are part of or relevant to it.

A new solvent system referred to as Next Generation Solvent or NGS, has been developed at Oak Ridge National Laboratory for the removal of cesium from alkaline solutions in the Caustic Side Solvent Extraction process. The NGS is proposed for deployment at MCU{sup a} and at the Salt Waste Processing Facility. This work investigated the chemical compatibility between NGS and 16 M, 8 M, and 3 M nitric acid from contact that may occur in handling of analytical samples from MCU or, for 3 M acid, which may occur during contactor cleaning operations at MCU. This work shows that reactions occurred between NGS components and the high molarity nitric acid. Reaction rates are much faster in 8 M and 16 M nitric acid than in 3 M nitric acid. In the case of 16 M and 8 M nitric acid, the nitric acid reacts with the extractant to produce initially organo-nitrate species. The reaction also releases soluble fluorinated alcohols such as tetrafluoropropanol. With longer contact time, the modifier reacts to produce a tarry substance with evolved gases (NO{sub x} and possibly CO). Calorimetric analysis of the reaction product mixtures revealed that the organo-nitrates reaction products are not explosive and will …

The LCLS injector and linac systems utilize a series of quadrupole magnets with a beam position monitor (BPM) captured in the magnet pole tips. The BPM measures the electron beam position by comparing the electrical signal from 4 electrodes and interpolating beam position from these signals. The manufacturing tolerances of the magnet and BPM are critical in determining the mechanical precision of the electrodes relative to the nominal electron beam Z-axis. This study evaluates the statistical uncertainty of the electrodes center axis relative to the nominal electron beam axis.

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Between 2007 and 2010 DuPont conducted a program under DOE award DE-FC36-07GO17056 to develop and improve Zymomonas mobilis as an ethanologen for commercial use in biorefineries to produce cellulosic ethanol. This program followed upon an earlier DOE funded program in which DuPont, in collaboration with the National Renewable Energy Laboratory (NREL) had developed a Zymomonas strain in conjunction with the development of an integrated cellulosic ethanol process. In the current project, we sought to maximize the utility of Zymomonas by adding the pathway to allow fermentation of the minor sugar arabinose, improve the utilization of xylose, improve tolerance to process hydrolysate and reduce the cost of producing the ethanologen. We undertook four major work streams to address these tasks, employing a range of approaches including genetic engineering, adaptation, metabolite and pathway analysis and fermentation process development. Through this project, we have developed a series of strains with improved characteristics versus the starting strain, and demonstrated robust scalability to at least the 200L scale. By a combination of improved ethanol fermentation yield and titer as well as reduced seed train costs, we have been able to reduce the capital investment and minimum ethanol selling price (MESP) by approximately 8.5% and 11% …

This report provides an overview of Lebanon and current issues of U.S. interest. It provides background information, analyzes recent developments and key policy debates, and tracks legislation, U.S. assistance, and recent congressional action. The report includes information regarding Prime Minister Saad Hariri's resignation and subsequent reinstatement in November 2017.

Congress has linked adjustments in federal pay to the ECI so that wages for federal employees will remain competitive with wages paid by firms in the private sector. Under the terms of the Federal Employees' Pay Comparability Act of 1990 (P.L. 101-509), pay for civilian federal employees is adjusted each year to keep the salaries of federal workers competitive with comparable occupations in the private sector. These annual adjustments in federal employee pay-which are distinct from any pay raises associated with within-grade step increases or promotions to a higher pay grade-are based on changes in the cash compensation paid to workers in the private sector, as measured by the ECI. Under certain circumstances, the President may limit the annual increase in federal pay by executive order.

This report describes online tools, reports, and data compilations created by the Office of Management and Budget (OMB) and the Office of Personnel Management (OPM) that contain statistics about federal employees and the federal workforce. The report also describes key characteristics of each resource and briefly discusses selected methodological differences, with the intention of facilitating the selection of appropriate data for specific purposes.

This report discusses a proposal by the U.S. in the North American Free Trade Agreement (NAFTA) renegotiations that would allow U.S. agricultural producers of certain fruits and vegetables to more easily file an injury claim regarding imports from Mexico. It includes details regarding the proposal, Mexican produce imports statistics, and arguments for and against the proposal.