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Mostrando 321 - 340 Resultados de 6,796 Para Buscar 'niobio~', tiempo de consulta: 2.49s Limitar resultados
  1. 321
    “…[Image: see text] Five types of niobium(V) oxides (Nb(2)O(5)) were synthesized by hydrothermal and heat treatment processes, and their structural properties and catalytic activities for the hydrogen absorption/desorption reactions of magnesium were characterized. …”
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    Catalytic Activities of Various Niobium Oxides for Hydrogen Absorption/Desorption Reactions of Magnesium
  2. 322
    “…This study investigates the effect of using ethanol as the process control agent during the wet ball milling of niobium (Nb). Dried nanocrystal Nb powders, of high purity, with particle sizes, ranging from 8.5 to 14.3 nm, were synthesized by ball milling. …”
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    Wet ball milling of niobium by using ethanol, determination of the crystallite size and microstructures
  3. 323
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    Niobium- and zirconium-catalyzed reactions of substituted 2 alkynylamines with Et(2)Zn
  4. 324
    “…[Image: see text] Typically, pure niobium oxide coatings are deposited on metallic substrates, such as commercially pure Ti, Ti6Al4 V alloys, stainless steels, niobium, TiNb alloy, and Mg alloys using techniques such as sputter deposition, sol–gel deposition, anodizing, and wet plasma electrolytic oxidation. …”
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    Progress in Niobium Oxide-Containing Coatings for Biomedical Applications: A Critical Review
  5. 325
    “…Photonic integrated circuits (PICs) have garnered increasing attention because of their high efficiency in information processing. Recently, lithium niobate on insulator (LNOI) has become a new platform for PICs with excellent properties. …”
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    On-Chip Optical Beam Manipulation with an Electrically Tunable Lithium-Niobate-on-Insulator Metasurface
  6. 326
    “…Superconducting Radio-Frequency cavities are currently made out of niobium. Niobium cavities are limited by the magnetic field on the cavity walls due to the entry of vortices at the field of first vortex penetration, H[Formula: see text] . …”
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    No interface energy barrier and increased surface pinning in low temperature baked niobium
  7. 327
    por Wang, Yong, Ren, Lei, Li, Zifeng, Xin, Feng
    Publicado 2022
    “…Hollow niobium oxide nanospheres were successfully synthesized by using prepared three-dimensional (3D) mesoporous carbon as the hard template. …”
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    Preparation of Hollow Niobium Oxide Nanospheres with Enhanced Catalytic Activity for Oxidative Desulfurization
  8. 328
    “…Here, we overcome these limitations by harnessing photonic integrated circuits based on thin-film lithium niobate platform. We successfully realize a portfolio of thin-film lithium niobate devices for essential polarization management functionalities, including arbitrary polarization generation, fast polarization measurement, polarization scrambling, and automatic polarization control. …”
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    High-performance polarization management devices based on thin-film lithium niobate
  9. 329
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    Time dependence of domain structures in potassium sodium niobate-based piezoelectric ceramics
  10. 330
    “…In this study, the variation of the melt structure at different superheating temperatures and the cooling rate during the deep solidification of cold niobium melt was investigated by a large-scale molecular dynamics simulation method. …”
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    Relation between superheated temperature and cooling rate for deep supercooled niobium melt
  11. 331
    “…This is in non-stoichiometric potassium sodium niobate epitaxial thin films with a high density of self-assembled planar faults. …”
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    Origin of giant electric-field-induced strain in faulted alkali niobate films
  12. 332
    “…For more than five decades, alkali niobate-based materials (K(x)Na(1−x)NbO(3)) have been one of the most promising lead-free piezoelectric materials researched to be used in electronics, photocatalysis, energy storage/conversion and medical applications, due to their important health and environmentally friendly nature. …”
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    Alkali Niobate Powder Synthesis Using an Emerging Microwave-Assisted Hydrothermal Method
  13. 333
    “…The title compound, [Nb(6)Cl(12)(H(2)O)(6)]I(2), consists of the niobium cluster cation [Nb(6)Cl(12)(H(2)O)(6)](2+) and two non-coordinating, charge-balancing iodide ions. …”
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    Hexa­aquadodeca-μ(2)-chlorido-octa­hedro-hexa­niobium diiodide
  14. 334
    “…The intensified quest for efficient materials drives us to study the alkali (Na)-based niobate (NaNbO(3)) and tantalate (NaTaO(3)) perovskites while exploiting the first-principles approach based on density functional theory, coded within WIEN2K. …”
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    First-principles structural, elastic and optoelectronics study of sodium niobate and tantalate perovskites
  15. 335
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    Determination of the Dielectric Constant of Niobium Oxide by Using Combined EIS and Ellipsometric Methods
  16. 336
    Libro
    Nouveau dictionnaire analogique /
  17. 337
    “…We identified eight genetic units throughout the entire Biobío system with high effective sizes. A reduced effective size estimate was, however, observed in a single population located between two impassable barriers. …”
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    Human‐induced habitat fragmentation effects on connectivity, diversity, and population persistence of an endemic fish, Percilia irwini, in the Biobío River basin (Chile)
  18. 338
    “…Three types of niobia nanostructured films (so-called native, planarized, and column-like) were formed on glass substrates by porous alumina assisted anodizing in a 0.2 M aqueous solution of oxalic acid in a potentiostatic mode at a 53 V and then reanodizing in an electrolyte containing 0.5 M boric acid and 0.05 M sodium tetraborate in a potentiodynamic mode by raising the voltage to 230 V, and chemical post-processing. …”
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    Optical Properties of Porous Alumina Assisted Niobia Nanostructured Films–Designing 2-D Photonic Crystals Based on Hexagonally Arranged Nanocolumns
  19. 339
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    MiBio: A dataset for OCR post-processing evaluation
  20. 340
    “…In this paper, we determined the complete mitochondrial DNA (mtDNA) sequence of Gobio coriparoides and analyzed its phylogenetic position. …”
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    The complete mitochondrial genome sequence and phylogenetic position of Gobio coriparoides
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