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37 Matching Results
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Charm Decays and Spectroscopy at BABAR
None
Date:
November 6, 2013
Creator:
Godang, Romulus
System:
The UNT Digital Library
Dichromatic Dark Matter
None
Date:
November 6, 2013
Creator:
Bai, Yang; Su, Meng & Zhao, Yue
System:
The UNT Digital Library
Discovery of the First Leaking Double-Shell Tank - Hanford Tank 241-AY-102-14222
A routine video inspection of the annulus space between the primary tank and secondary liner of double-shell tank 241-AY-102 was performed in August 2012. During the inspection, unexpected material was discovered. A subsequent video inspection revealed additional unexpected material on the opposite side of the tank, none of which had been observed during inspections performed in December 2006 and January 2007. A formal leak assessment team was established to review the tank's construction and operating histories, and preparations for sampling and analysis began to determine the material's origin. A new sampling device was required to collect material from locations that were inaccessible to the available sampler. Following its design and fabrication, a mock-up test was performed for the new sampling tool to ensure its functionality and capability of performing the required tasks. Within three months of the discovery of the unexpected material, sampling tools were deployed, material was collected, and analyses were performed. Results indicated that some of the unknown material was indicative of soil, whereas the remainder was consistent with tank waste. This, along with the analyses performed by the leak assessment team on the tank's construction history, lead to the conclusion that the primary tank was leaking into …
Date:
November 6, 2013
Creator:
Harrington, Stephanie J. & Sams, Terry L.
System:
The UNT Digital Library
Which Network Similarity Measure Should You Choose: An Empirical Study
None
Date:
November 6, 2013
Creator:
Soundarajan, S; Eliassi-Rad, T & Gallagher, B
System:
The UNT Digital Library
Accelerator control data visualization with Google Map
N/A
Date:
October 6, 2013
Creator:
W., Fu & Nemesure, S.
System:
The UNT Digital Library
A Monte Carlo Simulation Approach to the Reliability Modeling of the Beam Permit System of the Relativistic Heavy Ion Collider (RHIC) at BNL
N/A
Date:
October 6, 2013
Creator:
Chitnis, P.; Robertazzi, T. G. & Brown, K. A.
System:
The UNT Digital Library
Quantitative fault tree analysis of the Beam Permit System elements of Relativistic Heavy Ion Collider (RHIC) at BNL
N/A
Date:
October 6, 2013
Creator:
Chitnis, P.; Robertazzi, T. G.; Brown, K. A. & Theisen, C.
System:
The UNT Digital Library
THE EFFECTS OF HYDROGEN, TRITIUM, AND HEAT TREATMENT ON THE DEFORMATION AND FRACTURE TOUGHNESS PROPERTIES OF STAINLESS STEEL
The deformation and fracture toughness properties of forged stainless steels pre-charged with tritium were compared to the deformation and fracture toughness properties of the same steels heat treated at 773 K or 873 K and precharged with hydrogen. Forged stainless steels pre-charged with tritium exhibit an aging effect: Fracture toughness values decrease with aging time after precharging because of the increase in concentration of helium from tritium decay. This study shows that forged stainless steels given a prior heat treatment and then pre-charged with hydrogen also exhibit an aging effect: Fracture toughness values decrease with increasing time at temperature. A microstructural analysis showed that the fracture toughness reduction in the heat-treated steels was due to patches of recrystallized grains that form within the forged matrix during the heat treatment. The combination of hydrogen and the patches of recrystallized grains resulted in more deformation twinning. Heavy deformation twinning on multiple slip planes was typical for the hydrogen-charged samples; whereas, in the non-charged samples, less twinning was observed and was generally limited to one slip plane. Similar effects occur in tritium pre-charged steels, but the deformation twinning is brought on by the hardening associated with decay helium bubbles in the microstructure.
Date:
September 6, 2013
Creator:
Morgan, M.; Tosten, M. & Chapman, G.
System:
The UNT Digital Library
Improvement of Quality in Publication of Experimental Thermophysical Property Data: Challenges, Assessment Tools, Global Implementation, and Online Support
Article on the improvement of quality in the publication of experimental thermophysical property data.
Date:
September 6, 2013
Creator:
Chirico, Robert D.; Frenkel, Michael; Magee, Joseph W.; Diky, Vladimir; Muzny, Chris D.; Kazakov, Andrei F. et al.
System:
The UNT Digital Library
Zero and One Jet Combined NLO Analysis of the Top Quark Forward-backward Asymmetry
None
Date:
September 6, 2013
Creator:
Hoeche, Stefan; Huang, Junwu; Luisoni, Gionata; Schoenherr, Marek & Winter, Jan
System:
The UNT Digital Library
COG11.1 Code Features for SHielding and Criticality Safety Analyses
None
Date:
August 6, 2013
Creator:
Heinrichs, D.; Kim, S.; Biswas, D.; Chow, P.; Buck, R.; Lent, E. et al.
System:
The UNT Digital Library
REVERSIBLE HYDROGEN STORAGE IN A LiBH{sub 4}-C{sub 60} NANOCOMPOSITE
Reversible hydrogen storage in a LiBH{sub 4}:C{sub 60} nanocomposite (70:30 wt. %) synthesized by solvent-assisted mixing has been demonstrated. During the solvent-assisted mixing and nanocomposite formation, a chemical reaction occurs in which the C{sub 60} cages are significantly modified by polymerization as well as by hydrogenation (fullerane formation) in the presence of LiBH{sub 4}. We have determined that two distinct hydrogen desorption events are observed upon rehydrogenation of the material, which are attributed to the reversible formation of a fullerane (C{sub 60}H{sub x}) as well as a LiBH4 species. This system is unique in that the carbon species (C{sub 60}) actively participates in the hydrogen storage process which differs from the common practice of melt infiltration of high surface area carbon materials with LiBH{sub 4} (nanoconfinment effect). This nanocomposite demonstrated good reversible hydrogen storage properties as well as the ability to absorb hydrogen under mild conditions (pressures as low as 10 bar H{sub 2} or temperatures as low as 150�C). The nanocomposite was characterized by TGA-RGA, DSC, XRD, LDI-TOF-MS, FTIR, 1H NMR, and APPI MS.
Date:
August 6, 2013
Creator:
Teprovich, J.; Zidan, R.; Peters, B. & Wheeler, J.
System:
The UNT Digital Library
Chiral Anomaly Effects And the BaBar Measurements of the $\gamma\gamma^{*}\to \pi^{0}$ Transition Form Factor
None
Date:
June 6, 2013
Creator:
Pham, T. N. & Pham, X. Y.
System:
The UNT Digital Library
Experimental Status of $B to \tau \nu$ And $B to L \nu (\gamma)$
None
Date:
June 6, 2013
Creator:
Barlow, Roger & U., /Huddersfield
System:
The UNT Digital Library
Implementing the DOE M 441.1-1 Nuclear Materials Packaging Manual at Lawrence Livermore National Laboratory
None
Date:
June 6, 2013
Creator:
Riley, D C
System:
The UNT Digital Library
Long-Duration Gamma-Ray Emissions from 2007 And 2008 Winter Thunderstorms
None
Date:
June 6, 2013
Creator:
Tsuchiya, H.; Enoto, T.; Yamada, S.; Yuasa, T.; Nakazawa, K.; Kitaguchi, T. et al.
System:
The UNT Digital Library
Measurements of Inclusive $B \rightarrow X_U \ell \nu$ Decays
None
Date:
June 6, 2013
Creator:
Bozzi, Concezio
System:
The UNT Digital Library
Measurements of the Partial Branching Fraction for B to Xulnu and the Determination of Vub
None
Date:
June 6, 2013
Creator:
Sigamani, Michael & /INFN, Rome
System:
The UNT Digital Library
Neural Interface for Deep Brain Stimulation
None
Date:
June 6, 2013
Creator:
Tooker, A. C.; Madsen, T. E.; Crowell, A.; Shah, K. G.; Felix, S. H.; Mayberg, H. S. et al.
System:
The UNT Digital Library
Overview of the De-Inventory Effort at Lawrence Livermore National Laboratory
None
Date:
June 6, 2013
Creator:
Riley, D C
System:
The UNT Digital Library
Scale-Invariance and the Strong Coupling Problem
None
Date:
June 6, 2013
Creator:
Baumann, Daniel; /Princeton, Inst. Advanced Study; Senatore, Leonardo; /Stanford U., ITP /KIPAC, Menlo Park; Zaldarriaga, Matias & /Princeton, Inst. Advanced Study
System:
The UNT Digital Library
Search for Supersymmetry using Final States with One Lepton, Jets, and Missing Transverse Momentum with the ATLAS Detector in $\sqrt{s}=7$ TeV $Pp$
None
Date:
June 6, 2013
Creator:
Aad, Georges
System:
The UNT Digital Library
Searches for Dark Matter Annihilation Signatures in the Segue 1 Satellite Galaxy with the MAGIC-I Telescope
None
Date:
June 6, 2013
Creator:
Aleksic, J.; Alvarez, E. A.; Antonelli, L. A.; Antoranz, P.; Asensio, M.; Backes, M. et al.
System:
The UNT Digital Library
Studies of Exclusive Charmless Semileptonique B Decays and Extraction of |V_{ub}| at BABAR
None
Date:
June 6, 2013
Creator:
Simard, Martin
System:
The UNT Digital Library