Results 61 to 70 of about 742,292 (243)

Review of Rare Earth Elements as Fertilizers and Feed Additives: A Knowledge Gap Analysis

open access: yesArchives of Environmental Contamination and Toxicology, 2020
Rare earth elements (REEs) are key constituents of modern technology and play important roles in various chemical and industrial applications. They also are increasingly used in agricultural and zootechnical applications, such as fertilizers and feed ...
F. Tommasi   +7 more
semanticscholar   +1 more source

Rare Earth Elements

open access: yesRevista Vórtex, 2014
Rare (Earth) Elements is a cycle of works for solo piano. The cycle was inspired by James Dillon's Book of Elements (Vol. I-V). The complete cycle will consist of 14 pieces; one for each selected rare (earth) element. The chosen elements are Neodymium, Erbium, Tellurium, Hafnium, Tantalum, Technetium, Indium, Dysprosium, Lanthanium, Cerium, Europium ...
openaire   +2 more sources

Significant Enrichment of Rare Earth Element Concentrations in Stream Sediments of Sharm El-Sheikh Area, Southern Sinai-Egypt: Geochemical Prospecting and Heavy Mineral Survey

open access: yesIraqi Geological Journal, 2023
Economic rare earth element bearing-heavy mineral accommodation in alluvial deposits (stream sediments) is a well-known process caused by varying rates of weathering and transportation of heavy minerals and sediments, which is significant in ...
Omnia Elsayed   +3 more
doaj   +1 more source

Stark broadening data for spectral lines of rare-earth elements: Nb III

open access: yes, 2013
The electron-impact widths for 15 doubly charged Nb ion lines have been theoretically determined by using the modified semiempirical method. Using the obtained results, we considered the influence of the electron-impact mechanism on line shapes in ...
Dimitrijević, Milan S.   +2 more
core   +3 more sources

Characteristics of Precipitation of Rare Earth Elements with Various Precipitants

open access: yesMinerals, 2020
The effective and selective leaching of rare earth elements (REEs) from various sources is frequently possible in practice by adopting a carefully coordinated strategy incorporating a selective precipitation of these elements from undesired ones in ...
K. Han
semanticscholar   +1 more source

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

open access: yesMeitan 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   +3 more
doaj   +1 more source

A Comprehensive Review of Rare Earth Elements Recovery from Coal-Related Materials

open access: yesMinerals, 2020
Many studies have been published in recent years focusing on the recovery of rare earth elements (REEs) from coal-related materials, including coal, coal refuse, coal mine drainage, and coal combustion byproducts particularly fly ash.
Wencai Zhang   +3 more
semanticscholar   +1 more source

Synthesis, Crystal Structure and Optical Properties of Novel 1,10-Phenanthroline Derivatives Containing 2,6-Diisopropylphenoxy Substituents

open access: yesCrystals
Two phenanthroline derivatives, 2-(2,6-diisopropylphenoxy)-9-phenyl-1,10-phenanthroline and 2,9-bis(2,6-diisopropylphenoxy)-1,10-phenanthroline, were synthesized. The unsymmetrical derivative was obtained in high yield through a sequence combining Suzuki
Martin Tsvetkov   +4 more
doaj   +1 more source

Effect of Rare Earth Content on Microstructure and Corrosion Resistance of HRB400 Steel [PDF]

open access: yesTeshugang
The steel rebar with low cost and excellent corrosion resistance were prepared by adding trace lanthanum (La) and cerium (Ce) rare earth elements. The effect of rare earth addition on the microstructure and corrosion resistance of corrosion resistant ...
Chen Hao, Sun Yibin, Xie Qingmin, Liu Xiaolong, Zhang Cunshuai, Peng Zhixian, Cheng Zhaoyang, Liu Jing
doaj   +3 more sources

Rare (Earth) Elements [score]

open access: yesRevista Vortex, 2014
Rare (Earth) Elements is a cycle of works for solo piano. The cycle was inspired by James Dillon’s Book of Elements (Vol. I-V). The complete cycle will consist of 14 pieces; one for each selected rare (earth) element.
Camilo Méndez
doaj  

Home - About - Disclaimer - Privacy