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Tank 48 - Chemical Destruction (open access)

Tank 48 - Chemical Destruction

Small tank copper-catalyzed peroxide oxidation (CCPO) is a potentially viable technology to facilitate the destruction of tetraphenylborate (TPB) organic solids contained within the Tank 48H waste at the Savannah River Site (SRS). A maturation strategy was created that identified a number of near-term development activities required to determine the viability of the CCPO process, and subsequent disposition of the CCPO effluent. Critical activities included laboratory-scale validation of the process and identification of forward transfer paths for the CCPO effluent. The technical documentation and the successful application of the CCPO process on simulated Tank 48 waste confirm that the CCPO process is a viable process for the disposition of the Tank 48 contents.
Date: January 9, 2013
Creator: Simner, Steven P.; Aponte, Celia I. & Brass, Earl A.
System: The UNT Digital Library
A Theoretical Evaluation of Possible Transition Metal Electro-catalysts for N-2 Reduction (open access)

A Theoretical Evaluation of Possible Transition Metal Electro-catalysts for N-2 Reduction

None
Date: January 9, 2013
Creator: Skulason, Egill; Bligaard, Thomas; Gudmundsdottir, Sigridur; Felix Studt3, Jan a Felix Studt; Rossmeisl, Jan; Abild-Pedersen, Frank et al.
System: The UNT Digital Library
Tuning the LULESH Mini-app for Current and Future Hardware (open access)

Tuning the LULESH Mini-app for Current and Future Hardware

None
Date: January 9, 2013
Creator: Karlin, I; McGraw, J; Keasler, J & Still, B
System: The UNT Digital Library
Ultra Barrier Topsheet (UBT) for Flexible Photovoltaics (open access)

Ultra Barrier Topsheet (UBT) for Flexible Photovoltaics

This slideshow presents work intended to: Scale-up the Generation -1 UBT to 1+meter width full-scale manufacturing; Develop a Generation-2 UBT on the pilot line, targeting improved performance, longer lifetime and lower cost; Transfer Generation-2 UBT from the pilot line to the full-scale manufacturing line in 2014; and Validate service life of Generation-1 UBT for the 25+ year lifetime. 3M has scaled up UBT for production at 1.2 meter width. 3M is conducting extensive lifetime studies including: –Evaluation of customer processing and installation conditions; –Indoor accelerated testing of UBT film and full CIGS modules; –Outdoor testing of UBT film and CIGS modules. Results have been used to improve ultra barrier film performance for flex module applications.
Date: January 9, 2013
Creator: Schubert, Charlene
System: The UNT Digital Library
Unveiling the Nature of the Unidentified Gamma-ray Sources II: Radio, Infrared and Optical Counterparts of the gamma-ray Blazar Candidates (open access)

Unveiling the Nature of the Unidentified Gamma-ray Sources II: Radio, Infrared and Optical Counterparts of the gamma-ray Blazar Candidates

None
Date: April 9, 2013
Creator: Massaro, F.; D'Abrusco, R.; Paggi, A.; Masetti, N.; Giroletti, M.; Tosti, G. et al.
System: The UNT Digital Library
Upward-facing Lithium Flash Evaporator for NSTX-U (open access)

Upward-facing Lithium Flash Evaporator for NSTX-U

NSTX plasma performance has been significantly enhanced by lithium conditioning [1]. To date, the lower divertor and passive plates have been conditioned by downward facing lithium evaporators (LITER) as appropriate for lower null plasmas. The higher power operation expected from NSTX-U requires double null plasma operation in order to distribute the heat flux between the upper and lower divertors making it desirable to coat the upper divertor region with Li as well. An upward aiming LITER (U-LITER) is presently under development and will be inserted into NSTX-U using a horizontal probe drive located in a 6" upper midplane port. In the retracted position the evaporator will be loaded with up to 300 mg of Li granules utilizing one of the calibrated NSTX Li powder droppers[2]. The evaporator will then be inserted into the vessel in a location within the shadow of the RF limiters and will remain in the vessel during the discharge. About 10 seconds before a discharge, it will be rapidly heated and the lithium completely evaporated onto the upper divertor, thus avoiding the complication of a shutter that prevents evaporation during the shot when the diagnostic shutters are open. The minimal time interval between the evaporation and …
Date: July 9, 2013
Creator: Roquemore, A. L.
System: The UNT Digital Library