Results 31 to 40 of about 21,084,106 (317)
Metals, 2020 Active brazing of zirconia with metallic alloys is a promising method for enhancing the mechanical property of zirconia. However, the brazing process of zirconia and metallic alloys has not been studied in detail because of a limitation in selection of ...
Sung Woo Park +9 more
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The production of actinides in neutron star mergers
AAPPS Bulletin, 2022 Although the multimessenger detection of the neutron star merger event GW170817 confirmed that mergers are promising sites producing the majority of nature’s heavy elements via the rapid neutron-capture process (r-process), a number of issues related to ...
Meng-Ru Wu, Projjwal Banerjee
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β-delayed Fission in r-process Nucleosynthesis [PDF]
The Astrophysical Journal, 2018 Abstract We present β-delayed neutron emission and β-delayed fission (βdf) calculations for heavy, neutron-rich nuclei using the coupled Quasi-Particle Random Phase Approximation plus Hauser-Feshbach (QRPA+HF) approach. From the initial population of a compound nucleus after β-decay, we follow the statistical decay, taking into account ...
M. R. Mumpower +6 more
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The Origin of r-process Elements in the Milky Way [PDF]
The Astrophysical Journal, 2018 Abstract Some of the heavy elements, such as gold and europium (Eu), are almost exclusively formed by the rapid neutron capture process (r-process). However, it is still unclear which astrophysical site between core-collapse supernovae and neutron star–neutron star (NS–NS) mergers produced most of the r-process elements in the universe ...
Benoit Côté +10 more
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Nuclear quests for the r-process [PDF]
The European Physical Journal A, 2023 AbstractThe astrophysical r-process produces about half of the elements heavier than iron in the Universe and all of the transactinides. Recently neutron star mergers have been identified as one site of r-process nucleosynthesis. Simulations of this site and the associated nucleosynthesis requires essential nuclear input, ranging from the Equation of ...
Martinez Pinedo, Gabriel +1 more
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Metals, 2023 A383 Al-Si-Cu alloy matrix composites were reinforced with different amounts (0.5, 1.0, 1.5 and 2.0 wt%) of chopped multiwalled carbon nanotubes (MWCNTs) and fabricated using the oxygen-replacing die casting (ORDC) process to reduce gas porosities via ...
Seong-Hyo Oh +6 more
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Effects of Mg Content on Hydrogen Content and Melt Quality of Al-Mg Alloys
Metals, 2019 In Al-Mg alloys with Mg content 0 ≤ XMg ≤ 6 wt. %, the effects of XMg on dissolved hydrogen content ([H]) and melt quality were investigated.
Ho Sung Jang +7 more
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Engineering in Life Sciences, 2021 SARS‐CoV‐2 is responsible for a disruptive worldwide viral pandemic, and renders a severe respiratory disease known as COVID‐19. Spike protein of SARS‐CoV‐2 mediates viral entry into host cells by binding ACE2 through the receptor‐binding domain (RBD ...
Yunxia He +5 more
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EPJ Web of Conferences, 2018 The r-process nucleosynthesis in the Universe is constrained by observations of chemical abundances of the Solar System and those of old stars that should record the products of the r-process events in the early Universe. This review provides a brief overview of the observational technique to determine chemical abundances of stars.
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Impact of the first-forbidden ß decay on the production of A ~ 195 r-process peak
, 2016 We investigated the effects of first-forbidden transitions in ß decays on the production of the r -process A~195 peak. The theoretical calculated ß-decay rates with ß-delayed neutron emission were examined using several astrophysical conditions.
core +1 more source