Results 31 to 40 of about 3,422,985 (329)
Neutrinos, Weak Interactions, and r-process Nucleosynthesis [PDF]
, 2006 Two of the key issues in understanding the neutron-to-proton ratio in a core-collapse supernova are discussed. One of these is the behavior of the neutrino-nucleon cross sections as supernova energies.
A B Balantekin +10 more
core +2 more sources
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
doaj +1 more source
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.
openaire +2 more sources
Diverse Supernova Sources for the r-Process [PDF]
, 1997 (Abridged) It is shown that a semi-quantitative agreement with the gross solar r-process abundance pattern near and above mass number A=130 can be obtained by a superposition of two distinctive kinds of supernova r-process events.
Cameron A. G. W. +6 more
core +3 more sources
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
doaj +1 more source
Neutrino capture by r-process waiting-point nuclei [PDF]
, 1998 We use the Quasiparticle Random Phase Approximation to include the effects of low-lying Gamow-Teller and first forbidden strength in neutrino capture by very neutron-rich nuclei with N = 50, 82, or 126.
A. Hosaka +21 more
core +4 more sources
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
doaj +1 more source
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
doaj +1 more source
Sensitivity of the r-process to nuclear masses [PDF]
, 2012 The rapid neutron capture process (r-process) is thought to be responsible for the creation of more than half of all elements beyond iron. The scientific challenges to understanding the origin of the heavy elements beyond iron lie in both the ...
Aprahamian, A. +4 more
core +2 more sources
r-Process Nucleosynthesis from Compact Binary Mergers [PDF]
, 2021 The merger of two neutron stars or of a neutron star and a black hole often result in the ejection of a few percents of a solar mass of matter expanding at high speed in space. Being matter coming from the violent disruption of a neutron star, these ejecta are initially very dense, hot and extremely rich in neutrons.
Perego, A. +2 more
openaire +4 more sources