To support the selection of a waste form for the liquid secondary wastes from the Hanford Waste Immobilization and Treatment Plant, Washington River Protection Solutions (WRPS) has initiated secondary waste form testing on four candidate waste forms. Two of the candidate waste forms have not been developed to scale as the more mature waste forms. This work describes engineering-scale demonstrations conducted on Ceramicrete and DuraLith candidate waste forms. Both candidate waste forms were successfully demonstrated at an engineering scale. A preliminary conceptual design could be prepared for full-scale production of the candidate waste forms. However, both waste forms are still too immature to support a detailed design. Formulations for each candidate waste form need to be developed so that the material has a longer working time after mixing the liquid and solid constituents together. Formulations optimized based on previous lab studies did not have sufficient working time to support large-scale testing. The engineering-scale testing was successfully completed using modified formulations. Further lab development and parametric studies are needed to optimize formulations with adequate working time and assess the effects of changes in raw materials and process parameters on the final product performance. Studies on effects of mixing intensity on the …

This report describes the beef provisions in the Korea-U.S. Free Trade Agreement (KORUS FTA) and the separate bilateral protocols that the United States has negotiated in order to secure the lifting of South Korea's ban on U.S. beef imports, imposed after the discovery of mad cow disease in late 2003. It also summarizes U.S. beef export developments to this key market before and after the ban and since these protocols took effect; and lays out the outstanding issues on U.S. beef access that will likely need to be resolved to facilitate congressional consideration of the KORUS FTA.

This report describes Federal-Aid Highway Assistance (FHWA) assistance for the repair and reconstruction of disaster-damaged highways and bridges or catastrophic failures. It begins with a brief discussion of the legislative origins of federal assistance and describes the ER program in its current form.

This report begins with a discussion of the problems associated with the trust fund financing system (which supports both federal highway and public transportation programs) and then explores possible options for financing surface transportation infrastructure.

Some policymakers, believing that disparities in broadband access across American society could have adverse economic and social consequences on those left behind, assert that the federal government should play a more active role to avoid a "digital divide" in broadband access. One approach is for the federal government to provide financial assistance to support broadband deployment in underserved areas. Others, however, believe that federal assistance for broadband deployment is not appropriate. Some opponents question the reality of the "digital divide," and argue that federal intervention in the broadband marketplace would be premature and, in some cases, counterproductive.

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This report provides an overview of selected legal mechanisms that the federal government could rely upon in holding contractors accountable for deficiencies in their performance under the contract, or for other misconduct.

China's ruling executive body, the State Council, established the China Investment Corporation (CIC), a sovereign wealth fund, in September 2007 to invest $200 billion of China's then $1.4 trillion in foreign exchange reserves. Congress and financial analysts raised concerns about the CIC after its creation, partly because it was a comparatively large sovereign wealth fund, partly because it was government-owned, and partly because it reported directly to the State Council. These concerns raise question about U.S. policies on inward foreign direct investment (FDI) and the global competitiveness of U.S. financial institutions. Certain commentators suggest that more should be done to protect the United States from China's rising role in international capital markets.

The Experimental Program to Stimulate Competitive Research (EPSCoR) of the National Science Foundation (NSF) was authorized by Congress in 1978, partly in response to concerns in Congress and the concerns of some in academia and the scientific community about the geographic distribution of federal research and development (R&D) funds. Some have questioned the length of time states should receive EPSCoR support. It continues to be called an experimental program after 28 years, and observers have noted that no state has yet to graduate, or leave the program. This report discusses current policy involving EPSCoR, as well as budget requests.

This 32-pp annual report/brochure describes the accomplishments of the Class of 2012 of the Nonproliferation Graduate Fellowship Program (the last class of this program), which PNNL administers for the National Nuclear Security Administration. The time period covers Sept 2011 through June 2013.

This report examines Georgia's efforts to democratize and bolster its free market economy, while surmounting separatism, Russian economic sanctions, and other problems. U.S. policy and assistance are discussed. Basic facts and biographical information are provided. Related products include CRS Report RL33453, Armenia, Azerbaijan, and Georgia: Political Developments and Implications for U.S. Interests, by Jim Nichol.

Recent research into the moisture retention properties of saltstone suggest that osmotic pressure may play a potentially significant role in contaminant transport (Dixon et al., 2009 and Dixon, 2011). The Savannah River Remediation Closure and Disposal Assessments Group requested the Savannah River National Laboratory (SRNL) to conduct a literature search on osmotic potential as it relates to contaminant transport and to develop a conceptual model of saltstone that incorporates osmotic potential. This report presents the findings of the literature review and presents a conceptual model for saltstone that incorporates osmotic potential. The task was requested through Task Technical Request HLW-SSF-TTR-2013-0004. Simulated saltstone typically has very low permeability (Dixon et al. 2008) and pore water that contains a large concentration of dissolved salts (Flach and Smith 2013). Pore water in simulated saltstone has a high salt concentration relative to pore water in concrete and groundwater. This contrast in salt concentration can generate high osmotic pressures if simulated saltstone has the properties of a semipermeable membrane. Estimates of osmotic pressure using results from the analysis of pore water collected from simulated saltstone show that an osmotic pressure up to 2790 psig could be generated within the saltstone. Most semi-permeable materials are non-ideal …

This report provides background information and issues for Congress on the Navy's Littoral Combat Ship (LCS)/Frigate program, a program to procure 52 LCSs and frigates. The Navy's proposed FY2016 budget requests the procurement of three more LCSs.

This report provides background information and potential oversight issues for Congress on the Ohio replacement program (ORP), a program to design and build a new class of 12 ballistic missile submarines (SSBNs) to replace the Navy's current force of 14 Ohio-class SSBNs.

This report provides background information and issues for Congress on the Virginia-class nuclear-powered attack submarine (SSN) program. Decisions that Congress makes on procurement of Virginia-class boats could substantially affect U.S. Navy capabilities and funding requirements, and the U.S. shipbuilding industrial base.

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This report outlines an array of homeland security issues that may come before the 113th Congress. After a brief discussion of the overall homeland security budget, the report divides the specific issues into five broad categories: counterterrorism and security management, border security and trade, immigration, disaster preparedness, response, and recovery, and departmental management.

This report describes statutory requirements for allocating congressional nominations to service academies.It is an overview and resources for Outreach and Management Congressional nominations to U.S. service academies.

This report looks at how U.S. energy supply can be increased by wind power, which is a secure, environmentally-friendly, and economical source of power. Specific topics addressed are the components and manufacturing of wind turbines, and legislation mandating production of turbines and production of wind power.

The Saltstone Production Facility has a 10-inch Readco-Kurimoto continuous mixer that mixes the premix dry feeds and low-level waste salt solution to make fresh (uncured) saltstone. Inspection of the mixer in January 2013 showed significant wear on the third, fourth and fifth paddle pairs after the conveying augers. A 2-inch Readco-Kurimoto continuous mixer was used to test alternate paddle configurations for use in the 10-inch mixer to decrease the wear rate on the paddles. Two wear tests were conducted to investigate a method of reducing wear on the mixer paddles. The first test (wear test 2a) had a paddle configuration similar to the currently installed 10-inch mixer in the SPF. This test established baseline wear. The second test (wear test 2b) had a reconfigured paddle arrangement that replaced the flat paddles with helical paddles for paddle pairs 2 � 6 and aligned paddle pair 1 with the augers. The intent of the reconfiguration was to more effectively convey the partially wetted dry feeds through the transition region and into the liquid feed where paddle wear is reduced due to dry feeds and salt solution being mixed at the intended water to premix ratio. The design of the helical paddles provides …

Climate is defined by the Glossary of Meteorology as the mean of atmospheric variables over a period of time ranging from as short as a few months to multiple years and longer. Although the term climate is often used to refer to long-term weather statistics, the broader definition of climate is the time evolution of a system consisting of the atmosphere, hydrosphere, lithosphere, and biosphere. Physical, chemical, and biological processes are involved in interactions among the components of the climate system. Vegetation, soil moisture, and glaciers are part of the climate system in addition to the usually considered temperature and precipitation (Pielke, 2008). Climate change refers to any systematic change in the long-term statistics of climate elements (such as temperature, pressure, or winds) sustained over several decades or longer. Climate change can be initiated by external forces, such as cyclical variations in the Earth's solar orbit that are thought to have caused glacial and interglacial periods within the last 2 million years (Milankovitch, 1941). However, a linear response to astronomical forcing does not explain many other observed glacial and interglacial cycles (Petit et al., 1999). It is now understood that climate is influenced by the interaction of solar radiation with …

This is a project report for an Early Career PI grant on automated software for finite elements.

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This report discusses the opportunities for Representatives to offer floor amendments to a bill or resolution procedures by which the House considers the measure.