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Conceptual design study on incorporating a 25-ton/day pyrolysis unit into an operating total energy system. Final report

Description: The results of a conceptual design study on incorporating a pyrolysis unit into an existing total energy plant are presented. The objectives of this study were to examine the institutional, technical and economic factors affecting the incorporation of a 25-ton/day pyrolysis unit into the Indian Creek Total Energy Plant. The Indian Creek total energy plant is described. Results of the conceptual design are presented. A survey of the availability of waste materials and a review of health and safe… more
Date: December 13, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Research and Development Activities Fixation of Radioactive Residues Quarterly Progress Report, July-September 1961

Description: Progress is reported on research and development work in pot calcination and radiant-heat spray calcination studies of synthetic Purex high-level wastes; and sorption studies using synthetic minerals and resins as well as natural minerals. The calcination studies are discussed in terms of batch calcination, melting of pot calcination products, spray calcination, and off-gas treatment; and sorption studies in terms of mineral reactions, fixation chemistry, and condensate wastes. (B.O.G.)
Date: October 13, 1961
Creator: Irish, E.R. ed.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Data processing for the 1/5-scale Boiling Water Reactor Mark I pressure suppression experiment

Description: A description is given of methods used for data reduction and post-processing of reduced data for the 1/5-scale Boiling Water Reactor (BWR) Mark I pressure suppression experiment. Output from approximately 200 transducers, recorded onto analog magnetic tape, were reduced to engineering quantities with an analog-to-digital, COBOL-like conversion code. The reduced data were analyzed with conversational FORTRAN codes and mass-processed for reports with batch-processing FORTRAN codes.
Date: January 13, 1978
Creator: Lai, W. & McCauley, E.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Molten salt processing of mixed wastes with offgas condensation

Description: We are developing an advanced process for treatment of mixed wastes in molten salt media at temperatures of 700--1000{degrees}C. Waste destruction has been demonstrated in a single stage oxidation process, with destruction efficiencies above 99.9999% for many waste categories. The molten salt provides a heat transfer medium, prevents thermal surges, and functions as an in situ scrubber to transform the acid-gas forming components of the waste into neutral salts and immobilizes potentially fugit… more
Date: May 13, 1991
Creator: Cooper, J.F.; Brummond, W.; Celeste, J.; Farmer, J.; Hoenig, C.; Krikorian, O.H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Modeling node bandwidth limits and their effects on vector combining algorithms

Description: Each node in a message-passing multicomputer typically has several communication links. However, the maximum aggregate communication speed of a node is often less than the sum of its individual link speeds. Such computers are called node bandwidth limited (NBL). The NBL constraint is important when choosing algorithms because it can change the relative performance of different algorithms that accomplish the same task. This paper introduces a model of communication performance for NBL computers … more
Date: January 13, 1992
Creator: Littlefield, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Soil Sampling Plan in Support of the Human Health and Ecological Risk Assessment for the Operation of the Explosives Waste Treatment Facilitiy at Site 300 of the Lawrence Livermore National Laboratory

Description: LLNL proposes to obtain soil samples from the following areas: (1) Four areas downwind of the Explosives Waste Treatment Facility (EWTF) Burn Units (i.e., Thermal Treatment Unit and Burn Pan); (2) One area upwind of the Burn Units and Detonation Pad; (3) Two areas downwind of the EWTF Detonation Pad; and (4) Three areas unaffected (representing ambient conditions) by EWTF operations approximately 7000-8000 feet upwind of the facility. The purpose of the sampling in areas 1, 2, and 3 is to detec… more
Date: December 13, 2007
Creator: Terusaki, S
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Toward Fast Computation of Dense Image Correspondence on the GPU

Description: Large-scale video processing systems are needed to support human analysis of massive collections of image streams. Video, from both current small-format and future large-format camera systems, constitutes the single largest data source of the near future, dwarfing the output of all other data sources combined. A critical component to further advances in the processing and analysis of such video streams is the ability to register successive video frames into a common coordinate system at the pix… more
Date: August 13, 2007
Creator: Duchaineau, M; Cohen, J & Vaidya, S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The U.S. Support Program to IAEA Safeguards - Destructive Analysis

Description: The U.S. Support Program (USSP) to IAEA Safeguards priority of destructive analysis is aimed at strengthening the IAEA's ability to use destructive analysis as a safeguards tool. IAEA inspectors bring back nuclear and environmental samples from inspections, which are first cataloged by the IAEA and then analyzed by a network of laboratories located in many Member States and the IAEA's own Safeguards Analytical Laboratory in Seibersdorf, Austria. Historically, the USSP was instrumental in introd… more
Date: July 13, 2008
Creator: Hoffheins,B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Language Classification using N-grams Accelerated by FPGA-based Bloom Filters

Description: N-Gram (n-character sequences in text documents) counting is a well-established technique used in classifying the language of text in a document. In this paper, n-gram processing is accelerated through the use of reconfigurable hardware on the XtremeData XD1000 system. Our design employs parallelism at multiple levels, with parallel Bloom Filters accessing on-chip RAM, parallel language classifiers, and parallel document processing. In contrast to another hardware implementation (HAIL algorithm… more
Date: September 13, 2007
Creator: Jacob, A. & Gokhale, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A multi-model assessment of pollution transport to the Arctic

Description: We examine the response of Arctic gas and aerosol concentrations to perturbations in pollutant emissions from Europe, East and South Asia, and North America using results from a coordinated model intercomparison. These sensitivities to regional emissions (mixing ratio change per unit emission) vary widely across models and species. Intermodel differences are systematic, however, so that the relative importance of different regions is robust. North America contributes the most to Arctic ozone po… more
Date: March 13, 2008
Creator: Shindell, D T; Chin, M; Dentener, F; Doherty, R M; Faluvegi, G; Fiore, A M et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

REFINEMENT OF THE NEPHELINE DISCRIMINATOR: RESULTS OF A PHASE I STUDY

Description: The performance of a glass used for immobilization of high-level nuclear waste (HLW) is generally quantified by its resistance to chemical degradation, or durability. The durability of a HLW glass is dependent on its composition. If crystalline phases form within a glass during cooling, the composition of the residual glass network is altered, therefore affecting the durability of the glass. Crystallization of nepheline (NaAlSiO{sub 4}) has been shown to adversely impact the durability of HLW g… more
Date: February 13, 2008
Creator: Fox, K; James Newell, J; Tommy Edwards, T; David Best, D; Irene Reamer, I & Phyllis Workman, P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Average Power, High Energy Short Pulse Fiber Laser System

Description: Recently continuous wave fiber laser systems with output powers in excess of 500W with good beam quality have been demonstrated [1]. High energy, ultrafast, chirped pulsed fiber laser systems have achieved record output energies of 1mJ [2]. However, these high-energy systems have not been scaled beyond a few watts of average output power. Fiber laser systems are attractive for many applications because they offer the promise of high efficiency, compact, robust systems that are turn key. Applica… more
Date: November 13, 2007
Creator: Messerly, M J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The U.S. Support Program to IAEA Safeguards - How It Works

Description: The U.S. Support Program to International Atomic Energy Agency (IAEA) Safeguards (USSP) was established in 1977 to transfer US technology and expertise to assist the IAEA Department of Safeguards because its limited budget and scope would not allow for R&D activities and the procurement of specialized or customized equipment. Over the years, the USSP and the Department of Safeguards have worked together continuously to develop and improve processes for requesting, selecting, and managing pr… more
Date: July 13, 2008
Creator: Nock,C. & Hoffheins,B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Process development for automated solar cell and module production. Task 4: automated array assembly. Quarterly report No. 3

Description: The objective of this program is to develop process and handling technology required to allow large volume, low cost terrestrial solar array production. Emphasis has been placed on module lay-up and interconnect and edge sealing. During this reporting period, progress has been directed toward automated interconnection and lay-up of solar modules using a Unimate model 2000B industrial robot. A study of interconnect bond methods lead to the decision that induction heating would be most applicable… more
Date: July 13, 1979
Creator: Philp, T.B. & Hagerty, J.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Immobilization of high level nuclear reactor wastes in SYNROC: a current appraisal. [Synthetic perovskite and hollandite; natural zirconolite and perovskite]

Description: Results are presented for leach testing at 95/sup 0/C and 200/sup 0/C of SYNROC containing 9% and 20% simulated high level radioactive waste, synthetic hollandite and pervoskite samples, and natural zirconolite and pervoskite samples. Single phase synthetic minerals show much higher leach rates than natural mineral samples and polyphase SYNROC samples. Natural zirconolite samples with low radiation damage have leach rates at 200/sup 0/C based on U which are identical to those measured on SYNROC… more
Date: October 13, 1981
Creator: Oversby, V.M. & Ringwood, A.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DWPF PCCS version 2. 0 test case

Description: To verify the operation of the Product Composition Control System (PCCS), a test case specific to DWPF operation was developed. The values and parameters necessary to demonstrate proper DWPF product composition control have been determined and are presented in this paper. If this control information (i.e., for transfers and analyses) is entered into the PCCS as illustrated in this paper, and the results obtained correspond to the independently-generated results, it can safely be said that the P… more
Date: August 13, 1992
Creator: Brown, K.G. & Pickett, M.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ammonium generation during SRAT cycle

Description: During the IDMS noble-metal demonstration runs ammonium nitrate deposition was found in the vessel vent system of the feed preparation area. In the bench-scale experiments of studying the hydrogen generation during the sludge treatment cycle, ammonium ion production was also monitored. It was found that: During a simulation of the DWPF Cold Chemical Runs SRAT cycle no detectable amount of ammonium ions was generated when treating a non-noble-metal containing sludge simulant according to the nit… more
Date: October 13, 1992
Creator: Hsu, C.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bases for pump pit requirements calculations

Description: A task team is preparing the Process Requirements for the interarea transfer pump pits at the Defense Waste Process Facility (DWPF). The team is developing requirements to prevent flammable mixtures from forming and requires values to use on the generation of various components such as benzene, hydrogen, and N20. The purpose of this memorandum is to document values to be used and to provide sample calculations using these values. There are no recommendations contained in this document.
Date: February 13, 1992
Creator: Jacobs, R.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Plutonium and uranium adsorption on monosodium titanate

Description: Adsorption of Pu and U onto monosodium titanate (MST) in alkaline salt solution was measured. Changes in MST particle size distribution do not significantly affect the loadings of actinides. Max loading of plutonium-239 is 0.68 wt% at 0.79 mg/L Pu, below the infinitely safe value of 0.80 wt%. Max loading of uranium-235 onto MST is 1.4 wt% at a concentration of 20.3 {plus_minus} 2.0 mg/L U, slightly higher than the calculated infinitely safe limit of 1.2 wt%. Experimental data indicated there is… more
Date: August 13, 1992
Creator: Hobbs, D. T. & Walker, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cellulose fermentation by nitrogen-fixing anaerobic bacteria

Description: In anaerobic natural environments cellulose is degraded to methane, carbon dioxide and other products by the combined activities of many diverse microorganisms. We are simulating processes occurring in natural environments by constructing biologically-defined, stable, heterogeneous bacterial communities (consortia) that we use as in vitro systems for quantitative studies of cellulose degradation under conditions of combined nitrogen deprivation. These studies include the investigation of (i) me… more
Date: December 13, 1992
Creator: Canale-Parola, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DWPF PCCS version 2.0 test case. Revision 1

Description: To verify the operation of the Product Composition Control System (PCCS), a test case specific to DWPF operation was developed. The values and parameters necessary to demonstrate proper DWPF product composition control have been determined and are presented in this paper. If this control information (i.e., for transfers and analyses) is entered into the PCCS as illustrated in this paper, and the results obtained correspond to the independently-generated results, it can safely be said that the P… more
Date: August 13, 1992
Creator: Brown, K. G. & Pickett, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The processing of Pu scrap at Hanford

Description: This study responds to the requests for data on the subject contained in the D.S. Burrows letter entitled ``Processing Plutonium Scrap`` (symbol FAc:EAS) dated June 30, 1961 and received for reading by Chemical Processing Department Management on July 5, 1961. Cognizance is also taken of the July 5 teletype from G.F. Quinn requesting an appendix updating the content of our document HW-63560 (Pu Reclamation -- January 18, 1960) with regard to safety aspects covered therein. Appendix A of this pa… more
Date: July 13, 1961
Creator: Grimm, K. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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