Results 41 to 50 of about 3,422,985 (329)
Active-Sterile Neutrino Transformation and r-Process Nucleosynthesis [PDF]
, 2000 The type II supernova is considered as a candidate site for the production of heavy elements. Since the supernova produces an intense neutrino flux, neutrino scattering processes will impact element formation.
McLaughlin, G. C.
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Metals, 2020 Estimating the thermo-elasto-plastic deformation by arc welding through finite element analysis has been used in various industrial fields. The Goldak heat source model is one of the most important and widely used models in finite element analysis, and ...
Changmin Pyo, Jisun Kim, Jaewoong Kim
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Changes in r-process abundances at late times [PDF]
, 2001 We explore changes in abundance patterns that occur late in the r process. As the neutrons available for capture begin to disappear, a quasiequilibrium funnel shifts material into the large peaks at A=130 and A=195, and into the rare-earth "bump" at A ...
B. S. Meyer +15 more
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Applied Sciences, 2021 The uniformity of the wafer in a chemical mechanical polishing (CMP) process is vital to the ultra-fine and high integration of semiconductor structures.
Hanchul Cho +3 more
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A new r-process star with low abundances of r-process elements
Journal of Physics: Conference Series, 2016 Metal-poor stars with measurable r-process element abundances provide key clues to the production site(s) of the r-process and how its products are mixed with the surrounding medium. While the number of stars exhibiting strong enhancements of r-process elements has grown over the years, the lower "floor" of r-process enrichment in metal-poor stars has ...
Frebel, Anna L. +2 more
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Probing the Production of Actinides under Different r-process Conditions [PDF]
, 2019 Several extremely metal-poor stars are known to have an enhanced thorium abundance. These actinide-boost stars have likely inherited material from an r-process that operated under different conditions than the r-process that is reflected in most other ...
Arcones, A. +3 more
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Engineering in Life Sciences, 2021 To improve the fermentation efficiency of Propionibacterium acidipropionici, a semi‐continuous coupled fermentation process was established to achieve co‐production of propionic acid (PA) and succinic acid (SA).
Xiaolian Li +4 more
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The End Of Nucleosynthesis: Production Of Lead And Thorium In The Early Galaxy [PDF]
, 2009 We examine the Pb and Th abundances in 27 metal-poor stars (-3.1 56) enrichment was produced only by the rapid (r-) nucleosynthesis process. New abundances are derived from Hubble Space Telescope/Space Telescope Imaging Spectrograph, Keck/High ...
Christlieb, Norbert +6 more
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Analytical Science Advances, 2021 Chromatographic analysis of therapeutic oligonucleotides is challenging due to the presence of closely related impurities, degradants or metabolites and due to the presence of phosphorothioate bonds, which introduce chiral centers.
Lieve Dillen +5 more
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Supernova Neutrino-Nucleus Physics and the r-process
, 2004 This talk reviews three inputs important to neutrino-induced nucleosynthesis in a supernova: 1) "standard" properties of the supernova neutrino flux, 2) effects of phenomena like neutrino oscillations on that flux, and 3) nuclear structure issues in ...
Haxton, W. C.
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