Mostrando 2,161 - 2,180 Resultados de 99,129 Para Buscar '" metal"', tiempo de consulta: 0.79s Limitar resultados
  1. 2161
    “…Supramolecular hydrogels that can be assembled using metal–phenolic coordination of naturally occurring polyphenols and group IV metal ions (e.g. …”
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  2. 2162
    “…A transition‐metal‐free reductive hydroxymethylation reaction has been developed, enabling the preparation of tetrahydroisoquinolines bearing C4‐quaternary centers from the corresponding isoquinolines. …”
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  3. 2163
  4. 2164
    por Rudnick, Gary
    Publicado 2019
    “…Rudnick highlights a kinetic analysis of a bacterial Nramp transporter that focuses on how H(+) gradients are coupled to metal transport.…”
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  5. 2165
  6. 2166
    “…Metasurfaces are made of subwavelength nanoantennas with a flat, ultrathin architecture, and strong capability in manipulating the propagation of light by flexible modulations on its phase, amplitude, and polarization. Conventional metallic metalenses always suffer from its low efficiencies due to large intrinsic loss. …”
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  7. 2167
    “…Results: The bond strength without primers was 8.14 MPa (±1.49) for metal, 21.9 MPa (±3.55) for ceramic and 10.47 MPa (±2.11) for polycarbonate brackets (p < .05). …”
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  8. 2168
    “…The photophysical and photochemical properties of transition metal complexes can be controlled by the appropriate choice of the metal, its oxidation state, the number and types of ligands, and the coordination geometry.…”
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  9. 2169
  10. 2170
    “…[Image: see text] Laboratory assessments of aqueous metal toxicity generally demonstrate aquatic insects tolerate relatively high concentrations of metals in aqueous exposures; however, mesocosm experiments and field biomonitoring often indicate effects at relatively low metal concentrations. …”
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  11. 2171
    “…This work reviews design aspects of liquid metal antennas and their corresponding applications. …”
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  12. 2172
    “…However, industrial workers can also develop lung diseases due to the inhalation of metallic titanium materials during metal grinding.…”
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  13. 2173
    “…[Image: see text] In recent years, metal–organic frameworks (MOFs) have been wildly studied as heterogeneous catalysts due to their diversity of structures and outstanding physical and chemical properties. …”
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  14. 2174
    “…Oxygen vacancies often determine the electronic structure of metal oxides, but existing techniques cannot distinguish the oxygen-vacancy sites in the crystal structure. …”
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  15. 2175
    “…Three-dimensional (3D) printing technology has received great attention in the past decades in both academia and industry because of its advantages such as customized fabrication, low manufacturing cost, unprecedented capability for complex geometry, and short fabrication period. 3D printing of metals with controllable structures represents a state-of-the-art technology that enables the development of metallic implants for biomedical applications. …”
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  16. 2176
    “…In addition, improved understanding of different tauopathies would disclose environmental factors, such as xenobiotics and trace metals, that can precipitate or modify the progression of the disorder. …”
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  17. 2177
  18. 2178
    “…In this work, we demonstrate both experimentally as well as theoretically how the intrinsic threshold noise of an insulator-metal-transition (IMT) material can enable SR. We borrow inspiration from natural systems which use SR to detect and amplify low-amplitude signals, to demonstrate how a simple electrical circuit which uses an IMT device can exploit SR in engineering applications. …”
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  19. 2179
    por Larquet, Clément, Carenco, Sophie
    Publicado 2020
    “…This review summarizes the syntheses and applications of metal oxysulfides. Bulk compounds of rare earth and transition metals are discussed in the section Introduction. …”
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  20. 2180
    por Zhang, Huacheng, Liu, Zhaona, Shen, Jian
    Publicado 2020
    “…Recent progress about a novel organic–inorganic hybrid materials, namely cyclodextrins (CDs) modified/coated metal–organic frameworks (MOFs) is summarized by using a special categorization method focusing on the interactions between CDs and MOFs moieties, such as ligand–metal cations interactions, supramolecular interactions including host–guest interactions and hydrogen bonding, as well as covalent bonds. …”
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