Results 11 to 20 of about 38,293 (305)

Distribution Characteristics of Rare Earth Elements in Plants and Soils from the Bayan Obo Mining Area

Yankuang ceshi, 2019
BACKGROUND The Bayan Obo mining area is the main producing area of rare earth elements. During mining and refining, rare earth elements enter plants through migration and enrichment.
ZHANG Li-feng, LIU Jie-min, ZHANG Yi-ming   +2 more
doaj   +1 more source

Rare earth elements in coastal sediments of the Northern Galician Shelf: influence of geological features [PDF]

, 2012
Prego, R., Caetano, M., Bernardez, P., Brito, P., Ospina-Alvarez, N., & Vale, C. (2012). Rare earth elements in coastal sediments of the Northern Galician Shelf: influence of geological features. Continental Shelf Research, 35, 75–85.
Caetano, M, Vale, C., Bernárdez, Patricia, Bernardez, P, Ospina-Álvarez, Natalia, Brito, Pedro, Vale, Carlos, Prego, R., Caetano, Miguel, Ospina-Alvarez, N., Brito, P, Prego, R   +11 more
core   +1 more source

Study of microstructure and mechanical properties of Mg–3Y-1REmOn composites by Y-REmOn (RE=La, Ce, Sm, Gd) in-situ reaction

Journal of Materials Research and Technology, 2023
The expensive cost of master alloys for preparing high-performance Mg rare-earth alloys has prevented their large-scale production and application. This paper demonstrates that some inexpensive rare-earth oxides can replace the corresponding master ...
Liang Ren, Xiong Zhou, Tong Wang, Yinglong Li, Qichi Le, Qiyu Liao   +5 more
doaj   +1 more source

Effect of Rare Earth Element on Microstructure and Properties of in situ Synthesized TiB₂/Al Composites

Cailiao gongcheng, 2018
The effect of rare earth element Ce, Sc and Er on TiB2 particles and matrix alloy micros-tructure of TiB2/Al composites was studied with in situ synthesis method. It shows that the addition of rare earth element improves the microstructure and properties
QU Min, LIU Xin, CUI Yan, LIU Feng-bin, JIAO Zhi-wei, LIU Yuan   +5 more
doaj   +1 more source

Rare earth element contents, geochemistry of soil samples between Burdur and Isparta region and assessment of their origin

Bulletin of the Mineral Research and Exploration, 2020
This study was carried out in 5 locations between Burdur and Isparta in the inner southern part of Isparta Bend. The study aims to determine the rare earth element (REE) concentrations in the soil samples collected from the field and to interpret the ...
Ebru Tat, Mustafa Gurhan Yalcın
doaj   +1 more source

Investigation of rare earth elements in drinking water of typical rare earth mining and non-mining areas in three provinces of China

Zhongguo shipin weisheng zazhi, 2021
ObjectiveTo explore the concentrations of rare earth elements (Rare earth elements, REEs) in drinking water in rare earth mining and non-mining areas in Shandong, Guangdong, and Jiangxi provinces of China.MethodsTypical rare earth mining areas and 3 non ...
LOU Minhan, WANG Yibaina, SUI Haixia, MAO Weifeng, ZHANG Lei, LIU Zhaoping, WANG Yin, YONG Ling, SONG Yan   +8 more
doaj   +1 more source

Origin and fluxes of atmospheric REE entering an ombrotrophic peat bog in Black Forest (SW Germany): Evidence from snow, lichens and mosses [PDF]

, 2006
The fate of the Rare Earth Elements (REE) were investigated in different types of archives of atmospheric deposition in the Black Forest, Southern Germany: (1) a 70 cm snow pack collected on the domed part of a raised bog and representing 2 months of ...
Le Roux, Gaël, Aubert, D., Stille, Peter, Krachler, Michael, Shotyk, William, Kober, B., Kober, Bernd, Aubert, Dominique, Krachler, M., Stille, P., Shotyk, W., Le Roux, G., Cheburkin, A., Cheburkin, Andriy   +13 more
core   +1 more source

REE fractionation during granite weathering and removal by waters and suspended loads: Sr and Nd isotopic evidence [PDF]

, 2001
Very few studies deal with REE (rare earth element) mobility within the system soil–soil solution–streamwater. In this article, we try to characterize the fractionation and the migration of the REE in a granite-derived soil system located in a small ...
Dominique Aubert, Aubert, Dominique, Anne Probst, Stille, Peter, Probst, Anne, Peter Stille   +5 more
core   +1 more source

Effect of scandium on amylase production by Bacillus subtilis

Studies in Science and Technology, 2023
Scandium, lutetium, and gadolinium were selected from rare earth elements, and their effects on amylase activity secreted into the culture supernatant were examined when they were added to the NG medium.
Nobuki Hayase, Yuuki Manabe, Susumu Nakayama   +2 more
doaj   +1 more source

Rare Earth Elements in Wetlands

, 2016
International ...
Davranche, Mélanie, Gruau, Gérard, Dia, Aline, Bouhnik-Le Coz, Martine, Marsac, Remi, Pédrot, Mathieu, Pourret, Olivier   +6 more
openaire   +3 more sources