نتایج جستجو برای: rare earths
تعداد نتایج: 241550 فیلتر نتایج به سال:
The termites and mud-dauber wasps of West Africa build earthen structures in which their eggs and larvae develop. This paper examines how these insect earths are understood and used in West Africa, focusing on their direct consumption (geophagy) and medicinal qualities. Existing research reveals these earths to be enriched in minerals otherwise lacking in the diets of the region, and suggests t...
Rare Earth Elements are in growing demand globally. This paper presents a case study of applied mathematical modeling and multi objective optimization to optimize the separation of heavy Rare Earth Elements, Terbium-Lutetium, by means of preparative solid phase extraction chromatography, which means that an extraction ligand, HDEHP, is immobilized on a C18 silica phase, and nitric acid is used ...
Designing nanostructured materials with high dosimetric efficiency is a great challenge in radiation dosimetry research. From rare-earth series, yttrium oxide is considered as excellent host matrix for rare-earth ions, leading to formation of advanced functional materials with optical, mechanical, chemical, and thermal properties notably improved. Nevertheless, there is a lack of information wh...
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