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Separating the Minor Actinides Through Advances in Selective Coordination Chemistry
This report describes work conducted at the Pacific Northwest National Laboratory (PNNL) in Fiscal Year (FY) 2012 under the auspices of the Sigma Team for Minor Actinide Separation, funded by the U.S. Department of Energy Office of Nuclear Energy. Researchers at PNNL and Argonne National Laboratory (ANL) are investigating a simplified solvent extraction system for providing a single-step process to separate the minor actinide elements from acidic high-level liquid waste (HLW), including separating the minor actinides from the lanthanide fission products.
Date:
August 22, 2012
Creator:
Lumetta, Gregg J.; Braley, Jenifer C.; Sinkov, Sergey I. & Carter, Jennifer C.
Object Type:
Report
System:
The UNT Digital Library
Development of a Low Cost Insulated Foil Substrate for Cu(InGaSe)2 Photovoltaics
The project validated the use of stainless steel flexible substrate coated with silicone-based resin dielectric, developed by Dow Corning Corporation, for Cu(InGa)Se2 based photovoltaics. The projects driving force was the high performance of Cu(InGa)Se2 based photovoltaics coupled with potential cost reduction that could be achieved with dielectric coated SS web substrate.
Date:
January 22, 2012
Creator:
Eser, Erten
Object Type:
Report
System:
The UNT Digital Library
Micro-Analysis of Actinide Minerals for Nuclear Forensics and Treaty Verification
Micro-Raman spectroscopy has been demonstrated to be a viable tool for nondestructive determination of the crystal phase of relevant minerals. Collecting spectra on particles down to 5 microns in size was completed. Some minerals studied were weak scatterers and were better studied with the other techniques. A decent graphical software package should easily be able to compare collected spectra to a spectral library as well as subtract out matrix vibration peaks. Due to the success and unequivocal determination of the most common mineral false positive (zircon), it is clear that Raman has a future for complementary, rapid determination of unknown particulate samples containing actinides.
Date:
March 22, 2012
Creator:
M. Morey, M. Manard, R. Russo, G. Havrilla
Object Type:
Article
System:
The UNT Digital Library
2012 CHEMISTRY & PHYSICS OF GRAPHITIC CARBON MATERIALS GORDON RESEARCH CONFERENCE, JUNE 17-22, 2012
This conference will highlight the urgency for research on graphitic carbon materials and gather scientists in physics, chemistry, and engineering to tackle the challenges in this field. The conference will focus on scalable synthesis, characterization, novel physical and electronic properties, structure-properties relationship studies, and new applications of the carbon materials. Contributors
Date:
June 22, 2012
Creator:
Fertig, Herbert
Object Type:
Article
System:
The UNT Digital Library
Defining How a Microbial Cell Senses and Responds to a Redox Active Environment
This grant was for four years, and the work was designed to look at the mechanisms of extracellular electron transfer by the dissimilatory iron reducing bacteria Shewanella oneidensis MR-1, and other closely related Shewanella strains and species. During this work, we defined many of the basic physiological and biochemical properties of the Shewanella group, Much of which was summarized in review articles. We also finished and published the genome sequence of strain MR-1, the first of the shewanellae to have its genome sequenced. Control at the transcriptional and translational level was studied in collaboration with colleagues at PNNL and ANL. We utilized synchrotron X-ray radiation to image both the bacteria and the metal oxide particles via a technique called STXM, synchrotron X-ray absorption (ref. No.9), and X-ray microbeam analysis. We purified several of the cytochromes involved with metal reduction, and improved gene annotation of the MR-1 genome. The conductive appendages (nanowires) of MR-1 were described and characterized. Comparative genomics and biochemistry revealed that the pathway for the utilization of N-acetyl glucosamine in the various strains of Shewanella exhibited great variability, and had a number of previously unknown genes.
Date:
June 22, 2012
Creator:
Nealson, Kenneth H.
Object Type:
Report
System:
The UNT Digital Library
Summary Report for the Radiation Detection for Nuclear Security Summer School 2012
The Pacific Northwest National Laboratory (PNNL) hosted students from across the United States at the inaugural Radiation Detection for Nuclear Security Summer School from June 11 – 22, 2012. The summer school provided students with a unique understanding of nuclear security challenges faced in the field and exposed them to the technical foundations, analyses, and insight that will be required by future leaders in technology development and implementation. The course heavily emphasized laboratory and field demonstrations including direct measurements of special nuclear material. The first week of the summer school focused on the foundational knowledge required by technology practitioners; the second week focused on contemporary applications. Student evaluations and feedback from student advisors indicates that the summer school achieved its objectives of 1) exposing students to the range of nuclear security applications for which radiation detection is necessary, 2) articulating the relevance of student research into the broader context, and 3) exciting students about the possibility of future careers in nuclear security.
Date:
August 22, 2012
Creator:
Runkle, Robert C.; Baciak, James E. & Stave, Jean A.
Object Type:
Report
System:
The UNT Digital Library
Human Factors Engineering Program Review Model (NUREG-0711)Revision 3: Update Methodology and Key Revisions
The U.S. Nuclear Regulatory Commission (NRC) reviews the human factors engineering (HFE) programs of applicants for nuclear power plant construction permits, operating licenses, standard design certifications, and combined operating licenses. The purpose of these safety reviews is to help ensure that personnel performance and reliability are appropriately supported. Detailed design review procedures and guidance for the evaluations is provided in three key documents: the Standard Review Plan (NUREG-0800), the HFE Program Review Model (NUREG-0711), and the Human-System Interface Design Review Guidelines (NUREG-0700). These documents were last revised in 2007, 2004 and 2002, respectively. The NRC is committed to the periodic update and improvement of the guidance to ensure that it remains a state-of-the-art design evaluation tool. To this end, the NRC is updating its guidance to stay current with recent research on human performance, advances in HFE methods and tools, and new technology being employed in plant and control room design. NUREG-0711 is the first document to be addressed. We present the methodology used to update NUREG-0711 and summarize the main changes made. Finally, we discuss the current status of the update program and the future plans.
Date:
July 22, 2012
Creator:
Ohara J. M.; Higgins, J. & Fleger, S.
Object Type:
Article
System:
The UNT Digital Library
High-speed, multi-channel detector readout electronics for fast radiation detectors
In this project, we are developing a high speed digital spectrometer that a) captures detector waveforms at rates up to 500 MSPS b) has upgraded event data acquisition with additional data buffers for zero dead time operation c) moves energy calculations to the FPGA to increase spectrometer throughput in fast scintillator applications d) uses a streamlined architecture and high speed data interface for even faster readout to the host PC These features are in addition to the standard functions in our existing spectrometers such as digitization, programmable trigger and energy filters, pileup inspection, data acquisition with energy and time stamps, MCA histograms, and run statistics. In Phase I, we upgraded one of our existing spectrometer designs to demonstrate the key principle of fast waveform capture using a 500 MSPS, 12 bit ADC and a Xilinx Virtex-4 FPGA. This upgraded spectrometer, named P500, performed well in initial tests of energy resolution, pulse shape analysis, and timing measurements, thus achieving item (a) above. In Phase II, we are revising the P500 to build a commercial prototype with the improvements listed in items (b)-(d). As described in the previous report, two devices were built to pursue this goal, named the Pixie-500 and the …
Date:
June 22, 2012
Creator:
Hennig, Wolfgang
Object Type:
Report
System:
The UNT Digital Library
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 355, Ed. 1 Thursday, March 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
March 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 235, Ed. 1 Thursday, November 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
November 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 353, Ed. 1 Wednesday, August 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
August 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 36, No. 141, Ed. 1 Wednesday, August 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
August 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 35, No. 323, Ed. 1 Wednesday, February 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
February 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 251, Ed. 1 Friday, June 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
June 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Austin, Tex.), Vol. 35, No. 7, Ed. 1 Thursday, March 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
March 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 236, Ed. 1 Thursday, November 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
November 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 41, Ed. 1 Wednesday, February 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
February 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 36, No. 234, Ed. 1 Thursday, November 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
November 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 35, No. 353, Ed. 1 Thursday, March 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
March 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 354, Ed. 1 Thursday, March 22, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
March 22, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
California GAMA Special Study: Examination of Water Quality of Tritium-Dead Drinking Water Wells
None
Date:
May 22, 2012
Creator:
Visser, A.; Moran, J. E.; Singleton, M. J.; Hillegonds, D. J.; Belitz, K.; Kulongoski, J. et al.
Object Type:
Report
System:
The UNT Digital Library
Foundations of Feature Selection and Classification for Non-Gaussian Distributed Targets
None
Date:
August 22, 2012
Creator:
Clark, G. A.
Object Type:
Report
System:
The UNT Digital Library
Lessons Re-learned: The Little Things
This slide show discusses: connector choices; polishing technique (manual vs. machine); fiber interconnect construction; and deployment of fiber in the field.
Date:
October 22, 2012
Creator:
Perez, C., Lewis, T.
Object Type:
Article
System:
The UNT Digital Library
Cascade Reverse Osmosis Air Conditioning System
Advanced Research Projects Agency-Energy project sheet summarizing general information about the Building Energy Efficiency Through Innovative Thermodevices (BEETIT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses air conditioning that has increased electrical efficiency as part of the "Cascade Reverse Osmosis and the Absorption Osmosis Cycle" project.
Date:
February 22, 2012
Creator:
Batelle Memorial Institute
Object Type:
Text
System:
The UNT Digital Library