Search Results

Melter Throughput Enhancements for High-Iron HLW

Description: This report describes work performed to develop and test new glass and feed formulations in order to increase glass melting rates in high waste loading glass formulations for HLW with high concentrations of iron. Testing was designed to identify glass and melter feed formulations that optimize waste loading and waste processing rate while meeting all processing and product quality requirements. The work included preparation and characterization of crucible melts to assess melt rate using a vertical gradient furnace system and to develop new formulations with enhanced melt rate. Testing evaluated the effects of waste loading on glass properties and the maximum waste loading that can be achieved. The results from crucible-scale testing supported subsequent DuraMelter 100 (DM100) tests designed to examine the effects of enhanced glass and feed formulations on waste processing rate and product quality. The DM100 was selected as the platform for these tests due to its extensive previous use in processing rate determination for various HLW streams and glass compositions.
Date: December 26, 2012
Creator: Kruger, A. A.; Gan, Hoa; Joseph, Innocent; Pegg, Ian L.; Matlack, Keith S.; Chaudhuri, Malabika et al.
Partner: UNT Libraries Government Documents Department

Analytical Plans Supporting The Sludge Batch 8 Glass Variability Study Being Conducted By Energysolutions And Cua's Vitreous State Laboratory

Description: EnergySolutions (ES) and its partner, the Vitreous State Laboratory (VSL) of The Catholic University of America (CUA), are to provide engineering and technical services support to Savannah River Remediation, LLC (SRR) for ongoing operation of the Defense Waste Processing Facility (DWPF) flowsheet as well as for modifications to improve overall plant performance. SRR has requested via a statement of work that ES/VSL conduct a glass variability study (VS) for Sludge Batch 8. SRR issued a technical task request (TTR) asking that the Savannah River National Laboratory (SRNL) provide planning and data reduction support for the ES/VSL effort. This document provides two analytical plans for use by ES/VSL: one plan is to guide the measurement of the chemical composition of the study glasses while the second is to guide the measurement of the durability of the study glasses. The measurements generated by ES/VSL are to be provided to SRNL for data reduction and evaluation. SRNL is to review the results of its evaluation with ES/VSL and SRR. The results will subsequently be incorporated into a joint report with ES/VSL as a deliverable to SRR to support the processing of SB8 at DWPF.
Date: November 26, 2012
Creator: Edwards, T. B. & Peeler, D. K.
Partner: UNT Libraries Government Documents Department

Enhanced seed production under prolonged heat stress conditions in Arabidopsis thaliana plants deficient in cytosolic ascorbate peroxidase 2

Description: Article discussing enhanced seed production under prolonged heat stress conditions in Arabidopsis thaliana plants deficient in cytosolic ascorbate peroxidase 2.
Date: November 26, 2012
Creator: Suzuki, Nobuhiro; Miller, Gad; Sejima, Hiroe; Harper, Jeffrey F. & Mittler, Ron
Partner: UNT College of Arts and Sciences

Gangs in Central America. November 2012

Description: This report describes the gang problem in Central America, discusses country and regional approaches to deal with the gangs, and analyzes U.S. policy with respect to gangs in Central America.
Date: November 26, 2012
Creator: Seelke, Clare Ribando
Partner: UNT Libraries Government Documents Department

Geospatial Information: OMB and Agencies Need to Make Coordination a Priority to Reduce Duplication

Description: A letter report issued by the Government Accountability Office with an abstract that begins "While the President and the Office of Management and Budget (OMB) have established policies and procedures for coordinating investments in geospatial data, governmentwide committees and federal departments and agencies have not effectively implemented them. The committee that was established to promote the coordination of geospatial data nationwide--the Federal Geographic Data Committee (FGDC)--has developed and endorsed key standards-- including a metadata standard that includes descriptive information about a particular set of geospatial data--and established a clearinghouse of metadata; however, the clearinghouse is not being used by agencies to identify planned geospatial investments to promote coordination and reduce duplication. The FGDC has not yet planned or implemented an approach to manage geospatial data as related groups of investments to allow agencies to more effectively plan geospatial data collection efforts and minimize duplicative investments; and its strategic plan is missing key elements, such as performance measures for many of its defined objectives. Further, none of the three federal departments in GAO's review have fully implemented important activities for coordinating geospatial data, such as preparing and implementing a strategy for advancing geospatial activities within their respective departments."
Date: November 26, 2012
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department

How to Fit In? Integrating a web archiving program in your organization

Description: This presentation combines session slides from the 2012 International Internet Preservation Consortium sponsored workshop on "How to fit in? Integrate a web archiving program in your organization. This workshop aims to investigate the challenges and methods involved in implementing web archiving in all mainstream activities of a heritage institution.
Date: November 26, 2012
Creator: Derrot, Sophie; Oury, Clément; Rives, Caroline; Jacquet, Françoise; Lorthios, Annick; Sablonnière, Marguerite et al.
Partner: International Internet Preservation Consortium