Resource Type
Serial/Series Title
Fiscal Year 2004
4
Downhole Power Generation and Wireless Communications for Intelligent Completions Applications, Quarterly Report
2
Fiscal Year 1996
2
Winter Fuels Report
2
Active Cathodes for Super-High Power Density Solid Oxide Fuel Cells Through Space Charge Effects Quarterly Report
1
CO2 Capture by Absorption With Potassium Carbonate Quarterly Report
1
Chemical Processing Department Monthly Report
1
Development of Continuous Solvent Extraction Processes for Coal Derived Carbon Products Quarterly Report
1
Development of ITM Oxygen Technology for Integration in IGCC & Other Advanced Power Generation Systems (ITM Oxygen) Progress Report
1
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
1
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Development of Novel Sorbents for Uranium Extraction from Seawater
As the uranium resource in terrestrial ores is limited, it is difficult to ensure a long-term sustainable nuclear energy technology. The oceans contain approximately 4.5 billion tons of uranium, which is one thousand times the amount of uranium in terrestrial ores. Development of technologies to recover the uranium from seawater would greatly improve the uranium resource availability, sustaining the fuel supply for nuclear energy. Several methods have been previously evaluated including solvent extraction, ion exchange, flotation, biomass collection, and adsorption; however, none have been found to be suitable for reasons such as cost effectiveness, long term stability, and selectivity. Recent research has focused on the amidoxime functional group as a promising candidate for uranium sorption. Polymer beads and fibers have been functionalized with amidoxime functional groups, and uranium adsorption capacities as high as 1.5 g U/kg adsorbent have recently been reported with these types of materials. As uranium concentration in seawater is only ~3 ppb, great improvements to uranium collection systems must be made in order to make uranium extraction from seawater economically feasible. This proposed research intends to develop transformative technologies for economic uranium extraction from seawater. The Lin group will design advanced porous supports by taking advantage of …
Date:
January 8, 2014
Creator:
Lin, Wenbin & Taylor-Pashow, Kathryn
System:
The UNT Digital Library
Hanford Single-Shell Tank Leak Causes and Locations - 241-SX Farm
This document identifies 241-SX Tank Farm (SX Farm) leak causes and locations for the 100 series leaking tanks (241-SX-107, 241-SX-108, 241-SX-109, 241-SX-111, 241-SX-112, 241-SX-113, 241-SX-114, and 241-SX-115) identified in RPP-ENV-39658, Rev. 0, Hanford SX-Farm Leak Assessments Report. This document satisfies the SX Farm portion of the target (T04) in the Hanford Federal Facility Agreement and Consent Order milestone M-045-91F.
Date:
January 8, 2014
Creator:
Girardot, Crystal L. & Harlow, Donald G.
System:
The UNT Digital Library
Integrated Genome-Based Studies of Shewanella Ecophysiology
The aim of the work reported is to study Shewanella population genomics, and to understand the evolution, ecophysiology, and speciation of Shewanella. The tasks supporting this aim are: to study genetic and ecophysiological bases defining the core and diversification of Shewanella species; to determine gene content patterns along redox gradients; and to Investigate the evolutionary processes, patterns and mechanisms of Shewanella.
Date:
January 8, 2014
Creator:
Tiedje, James M.; Konstantinidis, Kostas & Worden, Mark
System:
The UNT Digital Library
Ultra-High Intensity Magnetic Field Generation in Dense Plasma
I. Grant Objective The main objective of this grant proposal was to explore the efficient generation of intense currents. Whereasthefficient generation of electric current in low-‐energy-‐ density plasma has occupied the attention of the magnetic fusion community for several decades, scant attention has been paid to carrying over to high-‐energy-‐ density plasma the ideas for steady-‐state current drive developed for low-‐energy-‐ density plasma, or, for that matter, to inventing new methodologies for generating electric current in high-‐energy-‐density plasma. What we proposed to do was to identify new mechanisms to accomplish current generation, and to assess the operation, physics, and engineering basis of new forms of current drive in regimes appropriate for new fusion concepts.
Date:
January 8, 2014
Creator:
Fisch, Nathaniel J
System:
The UNT Digital Library
Multi-gap Resistive Plate Chambers as a Time-of-Flight System for the PHENIX Experiment
In this project a Time-of-Flight detector based on multi-gap resistive plate chambers was built and installed for the PHENIX experiment at RHIC.
Date:
December 8, 2013
Creator:
Velkovska, Julia
System:
The UNT Digital Library
Conditional Dependence in Microbial Forensic Assays - A Primer
None
Date:
November 8, 2013
Creator:
Velsko, S. P.
System:
The UNT Digital Library
Description of the Process Model for the Technoeconomic Evaluation of MEA versus Mixed Amines for Carbon Dioxide Removal from Stack Gas
None
Date:
November 8, 2013
Creator:
Jones, D. A.
System:
The UNT Digital Library
A Global, Multi-Resolution Approach to Regional Ocean Modeling
In this collaborative research project between Pennsylvania State University, Colorado State University and Florida State University, we mainly focused on developing multi-resolution algorithms which are suitable to regional ocean modeling. We developed hybrid implicit and explicit adaptive multirate time integration method to solve systems of time-dependent equations that present two signi#12;cantly di#11;erent scales. We studied the e#11;ects of spatial simplicial meshes on the stability and the conditioning of fully discrete approximations. We also studies adaptive #12;nite element method (AFEM) based upon the Centroidal Voronoi Tessellation (CVT) and superconvergent gradient recovery. Some of these techniques are now being used by geoscientists(such as those at LANL).
Date:
November 8, 2013
Creator:
Du, Qiang
System:
The UNT Digital Library
Physics with Rare Isotope Beams
Using stable and radioactive beams provided by ATLAS nuclear reactions of special interest in astrophysics have been studied with emphasis on breakout from the hot CNO cycle to the rp-process. The masses of nuclear fragments provided by a strong fission source have been measured in order to help trace the path of the r process. 8Li ions produced by the d(7Li,8Li)n reaction have been trapped and the electrons and alphas emitted in the ensuing beta-decay measured. The neutrino directions were therefore determined, which leads to a measurement of the electron-neutrino correlation. The energies and kinematics are such that a sensitive search for any tensor admixture could be performed and an upper limit of 0.6% was placed on any such admixture. Earlier work on the electromagnetic form factors of the proton was extended. Graduate students were active participants in all of these eperiments, which formed the basis for six PhD theses.
Date:
November 8, 2013
Creator:
Segel, Ralph E.
System:
The UNT Digital Library
Tank 12H Acidic Chemical Cleaning Sample Analysis And Material Balance
A process of Bulk Oxalic Acid (BOA) chemical cleaning was performed for Tank 12H during June and July of 2013 to remove all or a portion of the approximately 4400 gallon sludge heel. Three strikes of oxalic acid (nominally 4 wt % or 2 wt %) were used at 55 �C and tank volumes of 96- to 140-thousand gallons. This report details the sample analysis of a scrape sample taken prior to BOA cleaning and dip samples taken during BOA cleaning. It also documents a rudimentary material balance for the Tank 12H cleaning results.
Date:
November 8, 2013
Creator:
Martino, C. J.; Reboul, S. H.; Wiersma, B. J. & Coleman, C. J.
System:
The UNT Digital Library
Construction Cost Estimate Livermore Site Solar Generation Project
None
Date:
October 8, 2013
Creator:
Quinly, C E
System:
The UNT Digital Library
Novel Battery Management System with Distributed Wireless and Fiber Optic Sensors for Early Detection and Suppression of Thermal Runaway in Large Battery Packs, FY13 Q4 Report, ARPA-E Program: Advanced Management Protection of Energy Storage Devices (AMPE
None
Date:
October 8, 2013
Creator:
Farmer, J.; Chang, J.; Zumstein, J.; Kovotsky, J.; Puglia, F.; Dobley, A. et al.
System:
The UNT Digital Library
Receiver Operating Characteristic (ROC) Curves: An Analysis Tool for Detection Performance
None
Date:
August 8, 2013
Creator:
Candy, J V & Breitfeller, E F
System:
The UNT Digital Library
Sample Results From The Interim Salt Disposition Program Macrobatch 7 Tank 21H Qualification Samples
Savannah River National Laboratory (SRNL) analyzed samples from Tank 21H in support of qualification of Macrobatch (Salt Batch) 7 for the Interim Salt Disposition Program (ISDP). An ARP and several ESS tests were also performed. This document reports characterization data on the samples of Tank 21H as well as simulated performance of ARP/MCU. No issues with the projected Salt Batch 7 strategy are identified, other than the presence of visible quantities of dark colored solids. A demonstration of the monosodium titanate (0.2 g/L) removal of strontium and actinides provided acceptable 4 hour average decontamination factors for Pu and Sr of 3.22 and 18.4, respectively. The Four ESS tests also showed acceptable behavior with distribution ratios (D(Cs)) values of 15.96, 57.1, 58.6, and 65.6 for the MCU, cold blend, hot blend, and Next Generation Solvent (NGS), respectively. The predicted value for the MCU solvent was 13.2. Currently, there are no models that would allow a prediction of extraction behavior for the other three solvents. SRNL recommends that a model for predicting extraction behavior for cesium removal for the blended solvent and NGS be developed. While no outstanding issues were noted, the presence of solids in the samples should be investigated in …
Date:
August 8, 2013
Creator:
Peters, T. B. & Washington, A. L. II
System:
The UNT Digital Library
Sample Results From The Next Generation Solvent Program Real Waste Extraction-Scrub-Strip Testing
Savannah River National Laboratory (SRNL) performed multiple Extraction-Scrub-Strip (ESS) testing using real waste solutions, and three Next Generation Solvent (NGS) variations, which included radiologically clean pure NGS, a blend of radiologically clean NGS and radiologically clean BOBCalixC6 (NGS-MCU), and a blend of radiologically clean NGS and radiologically contaminated BOBCalixC6 from the MCU Solvent system. The results from the tests indicate that both the NGS and the NGS-MCU blend exhibit adequate extraction, scrub and strip behavior.
Date:
August 8, 2013
Creator:
Peters, T. B. & Washington, A. L. II
System:
The UNT Digital Library
Stability of Intrinsic Pu Colloids in the Presence of Montmorillonite at 25 and 80C: High-Fired and Freshly Prepared PuO2 Oxides
None
Date:
August 8, 2013
Creator:
Zhao, P.; Kersting, A. B.; Dai, Z. & Zavarin, M.
System:
The UNT Digital Library
Comparison between the United States and United Kingdom Criticality Safety Personnel Training Program Guidance
None
Date:
July 8, 2013
Creator:
Wysong, A R
System:
The UNT Digital Library
Cryogenic Thermal Expansion of Y-12 Graphite Fuel Elements
Thermal expansion measurements betwccn 20°K and 300°K were made on segments of three uranium-loaded Y-12 uncoated graphite fuel elements. The thermal expansion of these fuel elements over this temperature range is represented by the equation: {Delta}L/L = -39.42 x 10{sup -5} + 1.10 x 10{sup -7} T + 6.47 x 10{sup -9} T{sup 2} - 8.30 x 10{sup -12} T{sup 3}.
Date:
July 8, 2013
Creator:
Eash, D. T.
System:
The UNT Digital Library
Fuel Plate Deformation Resulting from Fuel Swelling and Aluminum Cladding Constraint. GTRI - Reactor Conversion Program. WBS 21.2.96.2.7 - Out-of-Pile Testing and Codes. Task 13.4.1, Deliverable 1.
None
Date:
July 8, 2013
Creator:
Kim, Y. S. & Hofman, G.
System:
The UNT Digital Library
Preliminary Accident Analyses for Conversion of the University of Missouri Research Reactor (MURR) from Highly-Enriched to Low-Enriched Uranium Prepared by
None
Date:
July 8, 2013
Creator:
Feldman, E. E.; Foyto, L. P.; Kutikkad, K.; McKibben, J. C.; Peters, N. J.; Stevens, J. G. et al.
System:
The UNT Digital Library
Results Of Initial Analyses Of The Macrobatch 7 Tank 21H Qualification Samples
Savannah River National Laboratory (SRNL) analyzed samples from Tank 21H in support of qualification of Salt (Macro) Batch 7 for the Interim Salt Disposition Program (ISDP) through ARP/MCU. This document reports the initial results of the analyses of samples of Tank 21H. Further results on the chemistry and other tests will be issued in the future. No issues with the projected Salt Batch 7 strategy are identified, other than the presence of visible quantities of dark colored solids. Based upon a SRNL settling test, the solids should settle well within the months-long settling period to be employed in Tank 21H. However, SRNL recommends analyzing the solids to provide input to OLI modeling in order to evaluate the impacts of these solids to present and future salt batches.
Date:
July 8, 2013
Creator:
Peters, T. B. & Washington, A. L. II
System:
The UNT Digital Library
Saltstone 1QCY13 TCLP Results
A Saltstone waste form was prepared in the Savannah River National Laboratory (SRNL) from a Tank 50H sample and Z-Area premix material for the first quarter of calendar year 2013 (1QCY13). After a 49 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24 and R.61-79.268.48(a) requirements for a nonhazardous waste form with respect to RCRA metals and underlying hazardous constituents. These analyses met all quality assurance specifications of USEPA SW-846.
Date:
July 8, 2013
Creator:
Eibling, R. E.
System:
The UNT Digital Library
Low-e Storm Windows: Market Assessment and Pathways to Market Transformation
Field studies sponsored by the U.S. Department of Energy (DOE) have shown that the use of low-e storm windows can lead to significant heating and cooling energy savings in residential homes. This study examines the market for low-e storm windows based on market data, case studies, and recent experience with weatherization deployment programs. It uses information from interviews conducted with DOE researchers and industry partners involved in case studies and early deployment efforts related to low-e storm windows. In addition, this study examines potential barriers to market acceptance, assesses the market and energy savings potential, and identifies opportunities to transform the market for low-e storm windows and overcome market adoption barriers.
Date:
June 8, 2013
Creator:
Cort, Katherine A.
System:
The UNT Digital Library