Results 21 to 30 of about 26,129 (256)

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

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

Geochemical Discrimination of Monazite Source Rock Based on Machine Learning Techniques and Multinomial Logistic Regression Analysis

Geosciences, 2020
Detrital monazite geochronology has been used in provenance studies. However, there are complexities in the interpretation of age spectra due to their wide occurrence in both igneous and metamorphic rocks. We use the multinomial logistic regression (MLR)
Keita Itano, Kenta Ueki, Tsuyoshi Iizuka, Tatsu Kuwatani   +3 more
doaj   +1 more source

New deltahedral architectures of rhodium-mediated Pn73− (Pn = Sb and Bi) cages

Nano Research
The reactions of K5Pn4 (Pn = Sb and Bi) and CpRh(PPh3)2 (Cp = C5H5, cyclopentadiene) in ethylenediamine (en) solutions resulted in a series of new Pn73− adducts, {Pn8[Rh(PPh3)]2}2−, {Sb7[Rh(PPh3)]2}2−, and {Sb7[Rh(PPh3)]3}2−, through slight variations in
Lei Qiao, Chuan-Ling Chen, Zhong-Ming Sun   +2 more
doaj   +1 more source

Synthesis, characterization, and electrochemical properties of rare earth element nanoparticles and its application in electrochemical nanosensor for the detection of various biomolecules and hazardous compounds: A review

Sensing and Bio-Sensing Research, 2023
The utilization of nanoparticles of rare earth elements (REEs) has gained considerable interest and represents an advancement over micron-sized rare earth materials due to the distinct quantum properties exhibited by nanoparticles.
Nur Azizah Ferdiana, Husein Hernandi Bahti, Dikdik Kurnia, Santhy Wyantuti   +3 more
doaj   +1 more source

Research progress on the distribution and occurrence characteristics of rare earth elements in coal and coal-fired products

Meitan kexue jishu
Rare earth elements are widely used in permanent magnet, metallurgy, hydrogen storage materials and other fields due to their special properties, and their consumption is increasing year by year.
Yanyang XING, Hua DING, Xiangfei BAI, Jin HE   +3 more
doaj   +1 more source