Results 1 to 10 of about 490,516 (296)
Rare earth elements in plastics [PDF]
Because of their unique properties, rare earth elements (REEs), comprising the lanthanide elements plus Sc and Y, have a variety of integral applications in modern electronic equipment. Consequently, it has been suggested that REEs may act as contaminants of and tracers for recycled electrical and electronic plastics in consumer goods.
Andrew, Turner +2 more
openaire +2 more sources
Examples of tetrad effect in lanthanides in natural systems [PDF]
The irregular patterns of rare earth elements, caused by the tetrad effect are revised and discussed in this work, covering its concept and subdivision into M and W types, quantification and the mechanisms that led to its occurrence in magmatic ...
Lauro Valentim Stoll Nardi +2 more
doaj +1 more source
BACKGROUNDCoal and coal-bearing rock series can enrich beneficial elements such as rare earth under specific geological conditions, forming coal-related key metal deposits.
Xin ZHANG +6 more
doaj +1 more source
Lanthanides Release and Partitioning in Municipal Wastewater Effluents
The use of lanthanides is increasing in our society, whether in communication technologies, transportation, electronics or medical imaging. Some lanthanides enter urban wastewater and flow through municipal wastewater treatment plants (WWTPs).
Patrice Turcotte +3 more
doaj +1 more source
Quantitative analysis of rare earth elements in Mg–Zn–RE(Ce, Y, Gd)–Zr alloy
The solid solution amount of rare earth elements and the mass fraction of compounds were measured by low-temperature phase separation technology, the existing forms of rare earth elements in ZK-RE(Ce, Y, Gd) alloy were quantitatively studied, and the ...
Yuguang Li +4 more
doaj +1 more source
Direct Recovery of the Rare Earth Elements Using a Silk Displaying a Metal-Recognizing Peptide
Rare earth elements (RE) are indispensable metallic resources in the production of advanced materials; hence, a cost- and energy-effective recovery process is required to meet the rapidly increasing RE demand.
Nobuhiro Ishida +7 more
doaj +1 more source
Time-resolved spectroscopy of the rapidly oscillating Ap star KIC 10195926 [PDF]
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
core +1 more source
Rare earth elements from waste
Rare earth elements (REEs) are critical materials in electronics and clean technologies. With the diminishing of easily accessible minerals for mining, the REE recovery from waste is an alternative toward a circular economy. Present methods for REE recovery suffer from lengthy purifications, low extractability, and high wastewater streams.
Bing Deng +6 more
openaire +2 more sources
Time resolved spectroscopy of the cool Ap star HD 213637 [PDF]
We present an analysis of high time resolution spectra of the chemically peculiar Ap star HD 213637. The star shows rapid radial velocity variations with a period close to the photometric pulsation period.
Balmforth +44 more
core +2 more sources
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
doaj +1 more source

