Results 21 to 30 of about 502,778 (343)
HD 97394: a magnetic Ap star with high cerium overabundance [PDF]
, 2011 We report a spectroscopic analysis of the chemically peculiar Ap star HD 97394. The stellar spectrum is rich in lines of rare earth elements with large overabundances, especially cerium, gadolinium and europium.
Elkin, V. G., Kurtz, D. W., Mathys, G.
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Indonesian Journal on Geoscience, 2018 DOI: 10.17014/ijog.5.2.179-197A geochemical study was carried out to determine the geochemical characteristics of limestone in Wonosari-Punung Formation, and to suggest its depositional conditions and the source of rare earth elements.
Didik Dwi Atmoko +2 more
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Geochemical characteristics and mining prospects of REE in Lugou coal mine of Xinmi coalfield
矿业科学学报, 2020 The content of rare earth elements and their occurrence characteristics under low temperature ashing conditions in Lugou coal mine of Xinmi coalfield were studied by XRD, XRF and ICP-MS analysis techniques.The results show that the total content of rare ...
Luo Zhonggeng +3 more
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Plants, 2021 Rare earth element fractionation and distribution in the coastal ecosystem have been of significant concern and are recognized worldwide as emerging micro-pollutants. However, unlike other metals such as trace elements, little is known about their uptake
Abdullahi Bala Alhassan +1 more
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Metabolomic Analysis Reveals Contributions of Citric and Citramalic Acids to Rare Earth Bioleaching by a Paecilomyces Fungus. [PDF]
, 2019 Conventional methods for extracting rare earth elements from monazite ore require high energy inputs and produce environmentally damaging waste streams. Bioleaching offers a potentially more environmentally friendly alternative extraction process.
Alvarez-Cohen, Lisa +2 more
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Al-Kimia, 2016 Rare earth elements play an important role in a variety of applications, mostly for high-tech industries. But their presence in mineral jointly separation makes it difficult to determine the content of rare earths because each element has physical and ...
Yeni Wahyuni Hartati +3 more
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Open Chemistry, 2023 Austenitic stainless steels (SSs) are commonly used as in-core and surrounding structural materials in today’s industrial BWR and PWR systems. Such adaptable steels have also been the primary materials studied and used in several advanced nuclear reactor
Say Yakup +5 more
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Time-resolved spectroscopy of the rapidly oscillating Ap star KIC 10195926 [PDF]
, 2014 We report an analysis of high time resolution spectra of the chemically peculiar Ap star KIC 10195926 obtained with the Subaru telescope. We find that the star has low overabundances of rare earth elements compared with other rapidly oscillating Ap stars.
Elkin, V. G. +3 more
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Nitrite complexes of the rare earth elements [PDF]
, 2014 International audienceThe coordination chemistry of the nitrite anion has been investigated with rare earth elements, and the resulting complexes were structurally characterized. Among them, the first homoleptic examples of nitrite complexes of samarium,
Berthet, Jean-Claude +3 more
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Overview of microbial technology in the utilization of rare earth resources
工程科学学报, 2020 As an important resource for the development of modern industry, rare earth elements are widely used in nuclear technology, batteries, permanent magnet, electronic products, catalysis, and superconducting technology, and they have been mined at a ...
Xiao-lu LIU +3 more
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