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High enrichment of 15N by chromatographic chemical process
Journal of Chromatography A, 2008Nitrogen isotope enrichment experiments were conducted to obtain highly enriched (15)N by ion-exchange process. (15)NH(4)Cl ((15)N=80%) as feeding materials were used to perform the chromatographic operation with two different flow rates and column diameters. Both separation coefficient (epsilon) and height equivalent to a theoretical plate (HETP) have
Xingcheng, Ding +3 more
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Chemical enrichment of the Intracluster Medium
Astronomische Nachrichten, 2005X-ray observations (e.g. Fukazawa et al. 1998) show that the Intracluster Medium (ICM) contains metals with abundances ~ 0.2 - 0.3 Z ⊙. Since heavy elements are produced mainly in stars of cluster galaxies, they must have been transported into the intracluster space.
Baumgartner, Verena +1 more
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Inhomogeneous chemical enrichment of the universe
AIP Conference Proceedings, 2012Elemental and isotopic abundances are the fossils of galactic archaeology. The observed [X/Fe]-[Fe/H] relations in the Galactic bulge and disk and the mass-metallicity relation of galaxies are roughly reproduced with chemodynamical simulations of galaxies under the standard Λ-CDM picture and standard stellar physics.
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Chemical Enrichment of the Interstellar Medium
1991The aim of these lessons is to show that there is evidence for chemical evolution of the interstellar gas, as proven by the spectroscopic analysis of stars of all ages in the solar neighbourhood, of interstellar molecules and of HII regions both in our Galaxy and in external ones.
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Surface enrichment of lanthanum on Co3O4 for stable chemical looping combustion
Journal of CO2 Utilization, 2023Hyun Suk Lim
exaly
Stellar migration and chemical enrichment in the milky way disc: a hybrid model
Monthly Notices of the Royal Astronomical Society, 2021James W Johnson +2 more
exaly
Superhydrophobic 3D‐Assembled Metallic Nanoparticles for Trace Chemical Enrichment in SERS Sensing
Small, 2022Youhai Liu, Haomin Song, Qiaoqiang Gan
exaly
Chemical Enrichment of the Early Solar System
2017Meteorites preserved from the birth of the Solar system over 4.5 billion years ago contain the chemical signature of a nearby contemporaneous stellar explosion in the form of short-lived radioisotopes (SLRs) such as Aluminum-26. Yet results from hydrodynamical models of SLR injection into the pre-Solar cloud or disk encounter a common problem: it is ...
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MBROLE3: improved functional enrichment of chemical compounds for metabolomics data analysis
Nucleic Acids Research, 2023Javier López-Ibáñez +2 more
exaly