Mostrando 501 - 520 Resultados de 6,796 Para Buscar 'niobio~', tiempo de consulta: 3.04s Limitar resultados
  1. 501
    por Krampf, A., Messerschmidt, S., Imlau, M.
    Publicado 2020
    “…Various manifestations of small polarons strongly affect the linear and nonlinear optical properties of the oxide crystal lithium niobate ([Formula: see text] , LN). While related transient absorption phenomena in LN have been extensively studied in recent decades, a sound microscopic picture describing the blue-green (photo)luminescence of lithium niobate single crystals is still missing. …”
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  2. 502
    “…In this work, we investigated the role of solid-state dealumination by (NH(4))(2)SiF(6) (25% Al removal and 13% Si insertion), the impregnation of niobium (10, 18, and 25 wt. %) on dealuminated *BEA (DB) zeolite and their catalytic properties in ethanol and xylose transformations. …”
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  3. 503
    “…Niobium (Nb) thin films, which are potentially useful for integration into electronics and optoelectronics, were made by radio-frequency magnetron sputtering by varying the substrate temperature. …”
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  4. 504
    “…We study the manipulation of thermal/quantum phase slips (tPSs/qPSs) in ultra-thin niobium-nitride superconducting nanowires (scNW) grown on carbon-nanotube templates. …”
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  5. 505
  6. 506
    por Zong, Yun, Liu, Chun-Ming
    Publicado 2021
    “…Four types of ultra-low carbon bainite (ULCB) steels were obtained using unified production methods to investigate solely the effect of niobium content on the performance of ULCB steels. …”
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  7. 507
  8. 508
  9. 509
    “…In the current study, we evaluated the action of a novel probiotic Lactobacillus plantarum Probio-88 against SARS-COV-2 replication and immune regulation using an in vitro and in silico study. …”
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  10. 510
  11. 511
    “…We present a two-step surface modification process to tailor the micro and nano morphology of niobium oxide layers. Niobium was firstly anodized in spark regime in a Ca- and P-containing solution and subsequently treated by acid etching. …”
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  12. 512
    “…The present work systematically investigated the effects of niobium and molybdenum on the microstructures and corrosion properties of high-entropy CrFeCoNiNb(x)Mo(x) and CrFeCoNiNb(x)Mo(1−x) alloys, the maximum content of (Nb + Mo) was 20 at.%. …”
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  13. 513
    “…The efficient conversion of carbohydrates to 5-hydroxymethylfurfural (5-HMF) under mild conditions represents a very attractive and promising method of producing important building blocks. In this work, niobium phosphotungstates, with Nb/P molar ratios of 0.6, 1.0, 2.0 and 4.0 (NbPW-06, NbPW-1, NbPW-2, and NbPW-4, respectively) have been prepared by a facile, one-pot, alcohol-mediated thermal process and used for the direct conversion of fructose to 5-HMF. …”
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  14. 514
  15. 515
  16. 516
    “…In this work, we developed a CWAs sensor based on in-situ niobium-doped MoS(2) NSs (Nb-MoS(2) NSs) via direct chemical-vapor-deposition (CVD) growth. …”
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  17. 517
    “…Then, the effects of the morphology and niobium doping on the microstructure and electrochemical properties of FeTiO(3) were systematically studied. …”
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  18. 518
  19. 519
    “…In this study, the Lactobacillus sakei Probio65 extract (P65-CFS) was tested for its safety and efficacy in inhibiting SARS-CoV-2 replication. …”
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  20. 520
    “…We have established that luminescence in lithium niobate crystals both congruent and near-stoichiometric (R ≈ 1) is due to point defects in the cationic sublattice and intraconfigurational transitions in the oxygen-octahedral NbO(6) clusters. …”
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