Results 71 to 80 of about 399,955 (196)
Phase Diagram and Incommensurate Phases in Undoped Manganites
, 2005 We study the existence of incommensurate phases in the phase diagram of the two orbital double exchange model coupled with Jahn-Teller phonons and with superexchange interactions.
C. Zener +5 more
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High temperature oxidation behavior of heat resistant steel with rare earth element Ce
Materials Research Express, 2020 This study examined the oxidation properties of rare earth steel at high temperatures (600 °C–900 °C) in the air atmosphere by using Scanning Electronic Microscope (SEM) with an energy dispersive spectroscopy (EDS), x-ray diffraction analyzer (XRD) and ...
Shuai Wang +6 more
doaj +1 more source
Rare Earth Doping and Effective Band-Convergence in SnTe for Improved Thermoelectric Performance
, 2018 Thermoelectric performance of SnTe has been found to enhance with isovalent doping of alkaline and transition metal elements where most of these elements have solubility of less than 13%.
Acharya, Somnath +4 more
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Rare-Earth Magnet Free Flux-Switching Generator for Wind Turbines in Micro-Grids: A Review
CES Transactions on Electrical Machines and SystemsIn traditional electricity generation plants, large powerful synchronous, induction, and direct current generators were used. With the proliferation of microgrids focused on electricity generation from renewable energy sources in today's power grids ...
Tugberk Ozmen +3 more
doaj +1 more source
Effects of lanthanum on growth and accumulation in roots of rice seedlings
Plant, Soil and Environment, 2013 Hormetic effects on the growth were found in the roots of rice (Oryza sativa L. cv. Shengdao 16) exposed to increasing concentrations of La3+ (0.05, 0.1, 0.5, 1.0, and 1.5 mmol/L). The results indicated that La3+ promoted the growth of rice roots at 0.05
D. Liu, X. Wang, X. Zhang, Z. Gao
doaj +1 more source
Margins of the North Atlantic Craton: the world’s most prospective zone for the critical rare earth elements? [PDF]
, 2016 Seven years after the “rare earth element crisis” of 2009, the rare earth elements (REE) remain among the most critical of metals, with supply concentrated in China. Despite intense global exploration efforts, it has proved difficult for mining
Goodenough, Kathryn M.
core
Rare earth element concentrations and Nd isotopes in the Southeast Pacific Ocean
, 2013 International audienceThree vertical profiles of rare earth element concentrations and Nd isotopic compositions have been measured in the remote southeast Pacific Ocean.
Delattre, H. +4 more
core +4 more sources
Movement of Trace Elements During Residence in the Antarctic Ice: a Laboratory Simulation [PDF]
, 1991 Recent work has determined that differences in the trace element distribution between Antarctic eucrites and non-Antarctic eucrites may be due to weathering during residence in the ice, and samples that demonstrate trace element disturbances do not ...
Strait, Melissa M.
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Communications Earth & EnvironmentDeep-sea sediments enriched in rare earth elements represent important potential resources and paleoceanographic archives. The transfer of these elements from marine particles (e.g., Fe-Mn (oxyhydr)oxides or organic matter) to phosphate phases is ...
Pengcong Wang +11 more
doaj +1 more source
, 2005 We have performed a systematic investigation of the variations of the lattice constants with substituent rare-earth element concentration x in the nominally undoped superconductors T'-(La3+)2-x(RE3+)xCuO4 (RE = Sm, Eu, Gd, Tb, Lu, and Y), which we have ...
A. Tsukada +21 more
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