Showing 21 - 40 results of 99 for search '"Earth element"', query time: 0.07s Refine Results
  1. 21

    Geochemical exploration of rare earth element resources in highland karstic bauxite deposits in the Sierra de Bahoruco, Pedernales Province, Southwestern Dominican Republic. by Mark Chappell, Harold Rojas, Charles Andros, Autumn Acree, Yoko Masue-Slowey, Christine Young, Paige Fowler, Elizabeth Lotufo, Wesley Rowland, Michelle Wynter, Marcelo Salles, Leopoldo Gonzalez

    Published 2025-01-01
    “…This study investigates the geochemical characteristics of rare earth elements (REEs) in highland karstic bauxite deposits located in the Sierra de Bahoruco, Pedernales Province, Dominican Republic. …”
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    Studies on adsorption of rare earth elements from nitric acid solution with macroporous silica-based bis(2-ethylhexyl)phosphoric acid impregnated polymeric adsorbent by Qiding Shu, Afshin Khayambashi, Xinpeng Wang, Yuezhou Wei

    Published 2018-05-01
    “…For the adsorption and recovery of rare earth elements from aqueous nitric acid, solid-phase extraction resins were prepared by impregnating and immobilizing of bis(2-ethylhexyl)phosphoric acid extractant into the macroporous silica-based polymeric (SiO 2 -P) particles. …”
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  4. 24

    Behavior and Distribution of Heavy Metals Including Rare Earth Elements, Thorium, and Uranium in Sludge from Industry Water Treatment Plant and Recovery Method of Metals by Biosurfactants Application by Lidi Gao, Naoki Kano, Yuichi Sato, Chong Li, Shuang Zhang, Hiroshi Imaizumi

    Published 2012-01-01
    “…In order to investigate the behavior, distribution, and characteristics of heavy metals including rare earth elements (REEs), thorium (Th), and uranium (U) in sludge, the total and fractional concentrations of these elements in sludge collected from an industry water treatment plant were determined and compared with those in natural soil. …”
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    Evolution of the Radiation Shielding, Optical, and Luminescence Properties of PbO<sub>2</sub>-SiO<sub>2</sub> Glass Systems and the Influence of Rare Earth Elements (Eu, Ce, Yb) by Mioara Zagrai, Ramona-Crina Suciu, Radu Cristian Gavrea, Vasile Rednic

    Published 2025-01-01
    “…The results show that rare earth elements densify the glass network, thereby enhancing radiation attenuation properties, quantified through parameters like the linear attenuation coefficient (μ), the half-value layer (HVL), and the mean free path (MFP). …”
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  10. 30

    Composite welds reinforced in volume with lanthanides by Y. S. Usherenko, S. M. Usherenko, A. L. Minkov, A. H. Yazdani‑Cherati

    Published 2023-09-01
    Subjects: “…synthesis of rare earth elements…”
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    Investigation into the Use of Macroporous Anion Exchangers for the Sorption and Separation of Iminodiacetate Complexes of Lanthanum(III) and Neodymium(III) by Halina Hubicka, Dorota Kolodyńska

    Published 2000-10-01
    “…Rare earth element complexes with iminodiacetic acid (IMDA) of the Ln(IMDA) − 2 type exhibit an unusual sequence of affinities for anion exchangers. …”
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  19. 39

    Thermodynamic Stability Areas of Polyvanadates of Alkaline Earth Metals by Igor Povar, Inga Zinicovscaia, Oxana Spinu, Boris Pintilie

    Published 2019-01-01
    “…A thermodynamic method of the global Gibbs energy variation calculation for describing heterogeneous equilibria of transformations of calcium, strontium, and barium polyvanadates, that occur in systems MeO-V2O5-H2O, where Me is the alkaline earth element, has been developed and used. Its quintessence consists in the thermodynamic analysis of the real conditions of various processes on the basis of their total thermodynamic characteristics. …”
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  20. 40

    Effect of Nd Addition on the Microstructure and Martensitic Transformation of Ni-Ti Shape Memory Alloys by M. Dovchinvanchig, C. W. Zhao, S. L. Zhao, X. K. Meng, Y. J. Jin, Y. M. Xing

    Published 2014-01-01
    “…The effect of rare earth element Nd addition on the microstructure and martensitic transformation behavior of Ni50Ti50−xNdx (x=0, 1, 3, 7, 20) shape memory alloy was investigated experimentally. …”
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