Results 31 to 40 of about 3,517,480 (298)
Recent advances in microbial capture of hydrogen sulfide from sour gas via sulfur‐oxidizing bacteria
Biological desulfurization offers several remarkably environmental advantages of operation at ambient temperature and atmospheric pressure, no demand of toxic chemicals as well as the formation of biologically re‐usable sulfur (S0), which has attracted ...
Zheng Chen +8 more
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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
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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Sensitivity of the r-process to nuclear masses [PDF]
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
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
r-Process Nucleosynthesis from Compact Binary Mergers [PDF]
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
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
A new r-process star with low abundances of r-process elements
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
openaire +2 more sources
The End Of Nucleosynthesis: Production Of Lead And Thorium In The Early Galaxy [PDF]
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
core +2 more sources
Effects of Mg Content on Hydrogen Content and Melt Quality of Al-Mg Alloys
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

