Results 31 to 40 of about 65,258,316 (368)
The s process in rotating low-mass AGB stars [PDF]
Astronomy & Astrophysics, 2019 Aims. We investigate the s-process during the AGB phase of stellar models whose cores are enforced to rotate at rates consistent with asteroseismology observations of their progenitors and successors. Methods.
J. Hartogh +7 more
semanticscholar +1 more source
The Astrophysical Journal, 1967 The nucleosynthesis of heavy stable nuclei by successive captures of neutrons in a weak neutron flux (the s-process) is terminated at large atomic weight by alpha decay to isotopes of lead. We analyze the details of this termination and calculate the abundances of lead and bismuth isotopes synthesized by the exposure of lighter nuclei to neutrons.
Clayton, Donald D, Rassbach, M E
openaire +1 more source
Beilstein Journal of Organic Chemistry, 2023 A mild, operationally convenient, and practical method for the synthesis of synthetically useful N-arylsulfonylimines from N-(arylsulfonyl)benzylamines using K2S2O8 in the presence of pyridine as a base is reported herein. In addition, a “one-pot” tandem
Joydev K. Laha +2 more
doaj +1 more source
The R-Process Alliance: Discovery of the First Metal-poor Star with a Combined r- and s-process Element Signature [PDF]
Astrophysical Journal, 2018 We present a high-resolution (R ∼ 35,000), high signal-to-noise ratio (S/N > 200) Magellan/MIKE spectrum of the star RAVE J094921.8−161722, a bright (V = 11.3) metal-poor red giant star with [Fe/H] = −2.2, identified as a carbon-enhanced metal-poor (CEMP)
M. Gull +13 more
semanticscholar +1 more source
GALACTIC CHEMICAL EVOLUTION: THE IMPACT OF THE 13C-POCKET STRUCTURE ON THE s-PROCESS DISTRIBUTION [PDF]
, 2017 The solar s-process abundances have been analyzed in the framework of a Galactic Chemical Evolution (GCE) model. The aim of this work is to implement the study by Bisterzo et al., who investigated the effect of one of the major uncertainties of ...
S. Bisterzo +4 more
semanticscholar +1 more source
S stars and s-process in the Gaia era [PDF]
Astronomy & Astrophysics, 2018 Context. S stars are transition objects between M-type giants and carbon stars on the asymptotic giant branch (AGB). They are characterized by overabundances of s-process elements.
S. Shetye +8 more
semanticscholar +1 more source
Scalable process discovery and conformance checking [PDF]
, 2018 Considerable amounts of data, including process events, are collected and stored by organisations nowadays. Discovering a process model from such event data and verification of the quality of discovered models are important steps in process mining.
Aalst, WMP Wil van der +8 more
core +1 more source
Photoneutron cross sections for Ni isotopes: Toward understanding (n,γ) cross sections relevant to weak s -process nucleosynthesis [PDF]
Physical Review C, 2018 Photoneutron cross sections were measured for $^{58}$Ni, $^{60}$Ni, $^{61}$Ni, and $^{64}$Ni at energies between the one-neutron and two-neutron thresholds using quasi-monochromatic $\gamma$-ray beams produced in laser Compton-scattering at the NewSUBARU
H. Utsunomiya +21 more
semanticscholar +1 more source
Toward an Ideal Access Control Strategy for Industry 4.0 Manufacturing Systems
IEEE Access, 2021 Industrial control systems control and supervise our most important and critical infrastructures, such as power utilities, clean water plants and nuclear plants, as well as the manufacturing industries at the base of our economy.
Bjorn Leander +3 more
doaj +1 more source
A Brief Review of the s-process of Nucleosynthesis [PDF]
Symposium - International Astronomical Union, 1991 A brief overview is presented of the s-process of nucleosynthesis. Special emphasis is put on some of its nuclear physics aspects, and in particular on the uncertainties that still affect the rates of the 13C(α,n)16O and 22Ne(α,n)25Mg neutron producing reactions.
openaire +1 more source