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Fiscal Year 2002
2
Winter Fuels Report
2
Ames Laboratory Reports
1
Bench-Scale Co-Processing Quarterly Report
1
Carbon Sequestration on Surface Mine Lands Quarterly Report
1
Direct FuelCell/Turbine Power Plant Annual Report
1
Fiscal Year 1998
1
Fiscal Year 2000
1
Fiscal Year 2001
1
Fiscal Year 2005
1
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FY13 Progress Report on the Phase I Mini-SHINE Water Irradiations and Micro-SHINE Irradiations
None
Date:
February 19, 2014
Creator:
Youker, A. J.; Krebs, J. F.; Kalensky, M.; Tkac, P.; Chemerisov, S. & Vandegrift, G. F. (Chemical Sciences and Engineering Division)
System:
The UNT Digital Library
Organic Matter Composition, Recycling Susceptibility, and the Effectiveness of the Biological Pump – An Evaluation Using NMR Spectra of Marine Plankton
Carbon (C) sequestration through fertilization of phytoplankton with micronutrients and enhancement of the absorption and retention of atmospheric C by ocean biota heavily depends on the efficiency of the “biological pump”. The long-term effectiveness of this strategy depends on a net transfer of C from the upper ocean-atmosphere system to the deep ocean where the C is removed from contact with the atmosphere for an extended period of time. This C removal can be equated to the amount of C fixation by phytoplankton minus the C cycling and regeneration in the euphotic zone. If the regeneration efficiency is increased, then despite increased C fixation, no net loss (sequestration) of C will result. A reduction in cycling efficiency in the euphotic zone, on the other hand, will increase the effectiveness of the “biological pump” and thus C sequestration. The degree of organic matter biodegradation and recycling depends on the “reactivity” of compounds synthesized by the biota, which in turn, is controlled by the structural characteristic of these compounds. There is considerable evidence that different phytoplankton taxa differ substantially in their biogeochemical characteristics and it is likely that the relative abundance of different compounds synthesized by these distinct taxa, and even within …
Date:
February 19, 2014
Creator:
Paytan, Adina
System:
The UNT Digital Library
Recovery of Mo for Accelerator Production of Mo-99 Using (y,n) Reaction on Mo-100
None
Date:
February 19, 2014
Creator:
Tkac, P.; Vandegrift, G. F.; Nunn, S. D. & Harvey, J.
System:
The UNT Digital Library
Density of Additively-Manufactured, 316L SS Parts Using Laser Powder-Bed Fusion at Powers Up to 400W
None
Date:
December 19, 2013
Creator:
Kamath, C; El-dasher, B; Gallegos, G F; King, W E & Sisto, A
System:
The UNT Digital Library
DOE SciDAC’s Earth System Grid Center for Enabling Technologies Final Report for University of Southern California Information Sciences Institute
The mission of the Earth System Grid Federation (ESGF) is to provide the worldwide climate-research community with access to the data, information, model codes, analysis tools, and intercomparison capabilities required to make sense of enormous climate data sets. Its specific goals are to (1) provide an easy-to-use and secure web-based data access environment for data sets; (2) add value to individual data sets by presenting them in the context of other data sets and tools for comparative analysis; (3) address the specific requirements of participating organizations with respect to bandwidth, access restrictions, and replication; (4) ensure that the data are readily accessible through the analysis and visualization tools used by the climate research community; and (5) transfer infrastructure advances to other domain areas. For the ESGF, the U.S. Department of Energy’s (DOE’s) Earth System Grid Center for Enabling Technologies (ESG-CET) team has led international development and delivered a production environment for managing and accessing ultra-scale climate data. This production environment includes multiple national and international climate projects (such as the Community Earth System Model and the Coupled Model Intercomparison Project), ocean model data (such as the Parallel Ocean Program), observation data (Atmospheric Radiation Measurement Best Estimate, Carbon Dioxide Information and …
Date:
December 19, 2013
Creator:
Chervenak, Ann Louise
System:
The UNT Digital Library
FINAL REPORT: Transformational electrode drying process
This report includes major findings and outlook from the transformational electrode drying project performance period from January 6, 2012 to August 1, 2012. Electrode drying before cell assembly is an operational bottleneck in battery manufacturing due to long drying times and batch processing. Water taken up during shipment and other manufacturing steps needs to be removed before final battery assembly. Conventional vacuum ovens are limited in drying speed due to a temperature threshold needed to avoid damaging polymer components in the composite electrode. Roll to roll operation and alternative treatments can increase the water desorption and removal rate without overheating and damaging other components in the composite electrode, thus considerably reducing drying time and energy use. The objective of this project was the development of an electrode drying procedure, and the demonstration of processes with no decrease in battery performance. The benchmark for all drying data was an 80°C vacuum furnace treatment with a residence time of 18 – 22 hours. This report demonstrates an alternative roll to roll drying process with a 500-fold improvement in drying time down to 2 minutes and consumption of only 30% of the energy compared to vacuum furnace treatment.
Date:
December 19, 2013
Creator:
Claus Daniel, C. & Wixom, M. (A123 Systems, Inc.)
System:
The UNT Digital Library
High Performance Computing Operations Review Report
None
Date:
December 19, 2013
Creator:
Cupps, K C
System:
The UNT Digital Library
241-AW Tank Farm Construction Extent of Condition Review for Tank Integrity
This report provides the results of an extent of condition construction history review for the 241-AW tank farm. The construction history of the 241-AW tank farm has been reviewed to identify issues similar to those experienced during tank AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank AY-102 as the comparison benchmark. In the 241-AW tank farm, the fourth double-shell tank farm constructed, similar issues as those with tank 241-AY-102 construction occured. The overall extent of similary and affect on 241-AW tank farm integrity is described herein.
Date:
November 19, 2013
Creator:
Barnes, Travis J.; Gunter, Jason R. & Reeploeg, Gretchen E.
System:
The UNT Digital Library
Hanford Single-Shell Tank Leak Causes and Locations - 241-BY and 241-TY Farm
This document identifies 241-BY Tank Farm (BY Farm) and 241-TY Tank Farm (TY Farm) leak causes and locations for the 100 series leaking tanks (241-BY-103, 241-TY-103, 241-TY-104, 241-TY-105, and 241-TY-106) identified in RPP-RPT-43704, Hanford BY Farm Leak Assessments Report, and in RPP-RPT-42296, Hanford TY Farm Leak Assessments Report. This document satisfies the BY and TY Farm portion of the target (T04) in Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.
Date:
November 19, 2013
Creator:
Girardot, Crystal L. & Harlow, Donald G.
System:
The UNT Digital Library
Integrating Solar PV in Utility System Operations
None
Date:
November 19, 2013
Creator:
Mills, A.; Botterud, A.; Wu, J.; Zhou, Z.; Hodge, B-M. & Heaney, M.
System:
The UNT Digital Library
Pecan Street Smart Grid Extension Service at the University of Texas
Through funding from the Department of Energy’s Electricity Delivery and Reliability Office, Pecan Street Inc., in partnership with Austin Energy and Oncor, developed and tested third- party data access platforms and services for Green Button offerings and for other home energy use data providers. As more utilities seek to offer Green Button-compliant data to their customers, the question continually arises of how this data can be used to help customers better manage their energy use.
Date:
November 19, 2013
Creator:
McCracken, Brewster
System:
The UNT Digital Library
Settings of the NSLS-II BSR magnets for energy interlock
N/A
Date:
November 19, 2013
Creator:
Seletskiy, S.
System:
The UNT Digital Library
High-Power Warm-White Hybrid LED Package for Illumination
In this project, an integrated warm-white hybrid light engine was developed. The hybrid approach involves combining phosphor-converted off-white InGaN LEDs and direct-emitting red AlInGaP LEDs in a single light engine to achieve high efficacy together with high color rendering index. We developed and integrated technology improvements in InGaN and AlInGaP die technology, phosphor technology, package architecture and encapsulation, to realize a hybrid warm-white LED package with an efficacy of 140 lm/W at a correlated color temperature of 3000K and a color rendering index of 90, measured under representative operating conditions. This efficacy is 26% higher than the best warm-white LEDs of similar specification that are commercially available at the end of the project. Since the InGaN- and AlInGaP-based LEDs used in the hybrid engine show different behavior as a function of current and temperature, a control system needs to be in place to ensure a stable color point over all operating conditions. In this project, we developed an electronic control circuit that is fully integrated into the light engine in such a way that the module can simply be driven by a conventional single-channel driver. The integrated control circuit uses a switch-mode boost converter topology to control the LED drive …
Date:
September 19, 2013
Creator:
Soer, Wouter
System:
The UNT Digital Library
In situ characterization of nanoscale catalysts during anodic redox processes
Controlling the structure and composition of the anode is critical to achieving high efficiency and good long-term performance. In addition to being a mixed electronic and ionic conductor, the ideal anode material should act as an efficient catalyst for oxidizing hydrogen, carbon monoxide and dry hydrocarbons without de-activating through either sintering or coking. It is also important to develop novel anode materials that can operate at lower temperatures to reduce costs and minimized materials failure associated with high temperature cycling. We proposed to synthesize and characterize novel anode cermets materials based on ceria doped with Pr and/or Gd together with either a Ni or Cu metallic components. Ceria is a good oxidation catalyst and is an ionic conductor at room temperature. Doping it with trivalent rare earths such as Pr or Gd retards sintering and makes it a mixed ion conductor (ionic and electronic). We have developed a fundamental scientific understanding of the behavior of the cermet material under reaction conditions by following the catalytic oxidation process at the atomic scale using a powerful Environmental Scanning Transmission Electron Microscope (ESTEM). The ESTEM allowed in situ monitoring of structural, chemical and morphological changes occurring at the cermet under conditions approximating that …
Date:
September 19, 2013
Creator:
Sharma, Renu; Crozier, Peter & Adams, James
System:
The UNT Digital Library
Lawrence Livermore National Laboratory Environmental Report 2012
None
Date:
September 19, 2013
Creator:
Jones, H. E.; Armstrong, D.; Blake, R. G.; Bertoldo, N. A.; Cerruti, S. J.; Fish, C. et al.
System:
The UNT Digital Library
Sample Results From The Interim Salt Disposition Program Macrobatch 7 Tank 21H Qualification MST Solids Sample
Savannah River National Laboratory (SRNL) performed experiments on qualification material for use in the Interim Salt Disposition Program (ISDP) Batch 7 processing. The Marcrobatch 7 material was received with visible fine particulate solids, atypical for these samples. The as received material was allowed to settle for a period greater than 24 hours. The supernatant was then decanted and utilized as our clarified feed material. As part of this qualification work, SRNL performed an Actinide Removal Process (ARP) test using the clarified feed material. From this test, the residual monosodium titanate (MST) was analyzed for radionuclide uptake after filtration from H-Tank Farm (HTF) feed salt solution. The results of these analyses are reported and are within historical precedent.
Date:
September 19, 2013
Creator:
Washington, A. L. II & Peters, T. B.
System:
The UNT Digital Library
Tank 40 Final Sludge Batch 8 Chemical Characterization Results
A sample of Sludge Batch 8 (SB8) was pulled from Tank 40 in order to obtain radionuclide inventory analyses necessary for compliance with the Waste Acceptance Product Specifications (WAPS). The SB8 WAPS sample was also analyzed for chemical composition, including noble metals, and fissile constituents, and these results are reported here. These analyses along with the WAPS radionuclide analyses will help define the composition of the sludge in Tank 40 that is currently being fed to the Defense Waste Processing Facility (DWPF) as SB8. At SRNL, the 3-L Tank 40 SB8 sample was transferred from the shipping container into a 4-L high density polyethylene bottle and solids were allowed to settle. Supernate was then siphoned off and circulated through the shipping container to complete the transfer of the sample. Following thorough mixing of the 3-L sample, a 553 g sub-sample was removed. This sub-sample was then utilized for all subsequent slurry sample preparations. Eight separate aliquots of the slurry were digested, four with HNO{sub 3}/HCl (aqua regia) in sealed Teflon(r) vessels and four with NaOH/Na{sub 2}O{sub 2} (alkali or peroxide fusion) using Zr crucibles. Two Analytical Reference Glass - 1 (ARG-1) standards were digested along with a blank for each …
Date:
September 19, 2013
Creator:
Bannochie, Christopher J.
System:
The UNT Digital Library
West Valley Demonstration Project Annual Site Environmental Report Calendar Year 2012
The West Valley Demonstration Project (WVDP) Annual Site Environmental Report (ASER) for Calendar Year 2012. The report, prepared for the U.S. Department of Energy West Valley Demonstration Project office (DOE-WVDP), summarizes the environmental protection program at the WVDP for calendar year (CY) 2012. Monitoring and surveillance of the facilities used by the DOE are conducted to verify protection of public health and safety and the environment. The report is a key component of DOE’s effort to keep the public informed of environmental conditions at the WVDP. The quality assurance protocols applied to the environmental monitoring program ensure the validity and accuracy of the monitoring data. In addition to demonstrating compliance with environmental laws, regulations, and directives, evaluation of data collected in 2012 continued to indicate that WVDP activities pose no threat to public health or safety, or to the environment.
Date:
September 19, 2013
Creator:
Rendall, John D.; Steiner, Alison F. & Klenk, David P.
System:
The UNT Digital Library
Presentations by MIIS-LLNL Safeguards Policy Interns
None
Date:
August 19, 2013
Creator:
Anzelon, G. A.; Davydov, J. S.; Park, K. K.; McCarthy, K. T.; Kuwata, Y. A. & Wilbourne, J. L.
System:
The UNT Digital Library
Technical Report on NETL's Non Newtonian Multiphase Slurry Workshop: A path forward to understanding non-Newtonian multiphase slurry flows
The Department of Energy’s (DOE) National Energy Technology Laboratory (NETL) sponsored a workshop on non-Newtonian multiphase slurry at NETL’s Morgantown campus August 19 and 20, 2013. The objective of this special two-day meeting of 20-30 invited experts from industry, National Labs and academia was to identify and address technical issues associated with handling non-Newtonian multiphase slurries across various facilities managed by DOE. Particular emphasis during this workshop was placed on applications managed by the Office of Environmental Management (EM). The workshop was preceded by two webinars wherein personnel from ORP and NETL provided background information on the Hanford WTP project and discussed the critical design challenges facing this project. In non-Newtonian fluids, viscosity is not constant and exhibits a complex dependence on applied shear stress or deformation. Many applications under EM’s tank farm mission involve non-Newtonian slurries that are multiphase in nature; tank farm storage and handling, slurry transport, and mixing all involve multiphase flow dynamics, which require an improved understanding of the mechanisms responsible for rheological changes in non-Newtonian multiphase slurries (NNMS). To discuss the issues in predicting the behavior of NNMS, the workshop focused on two topic areas: (1) State-of-the-art in non-Newtonian Multiphase Slurry Flow, and (2) Scaling …
Date:
August 19, 2013
Creator:
Guenther, Chris & Garg, Rahul
System:
The UNT Digital Library
The Effective Number Density of Galaxies for Weak Lensing Measurements in the LSST Project
None
Date:
July 19, 2013
Creator:
Chang, C.; /KIPAC, Menlo Park; Jarvis, M.; Jain, B.; U., /Pennsylvania; Kahn, S.M. et al.
System:
The UNT Digital Library
National Computational Infrastructure for Lattice Gauge Theory SciDAC-2 Closeout Report
Under its SciDAC-1 and SciDAC-2 grants, the USQCD Collaboration developed software and algorithmic infrastructure for the numerical study of lattice gauge theories.
Date:
July 19, 2013
Creator:
Mackenzie, Paul; Brower, Richard; Karsch, Frithjof; Christ, Norman; Gottlieb, Steven; Negele, John et al.
System:
The UNT Digital Library
Applications of Geothermally-Produced Colloidal Silica in Reservoir Management - Smart Gels
None
Date:
June 19, 2013
Creator:
Hunt, J D; Ezzedine, S M; Bourcier, W & Roberts, S
System:
The UNT Digital Library
Computational Mechanics Research and Support for Aerodynamics and Hydraulics at TFHRC, Year 3 Quarter 1 Progress Report
None
Date:
June 19, 2013
Creator:
Lottes, S.A. & Bojanowski, C.
System:
The UNT Digital Library