Mostrando 341 - 360 Resultados de 6,796 Para Buscar 'niobio~', tiempo de consulta: 2.49s Limitar resultados
  1. 341
  2. 342
  3. 343
    “…We present the cost-effective production of superconductingradio frequency (SRF) cavities made of medium grain (MG) niobium(Nb) discs directly sliced from forged and annealed billet. …”
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  4. 344
  5. 345
    “…Superconducting RF accelerating cavities have been produced at CERN by sputter-coating, with a thin niobium layer, cavities made of copper. In the present work, the discharge behaviour and niobium film properties have been investigated when part of the argon sputtering gas is replaced with helium. …”
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  6. 346
  7. 347
    “…The surface resistance of superconducting niobium films induced by the presence of trapped magnetic flux, presumably in the form of a pinned fluxon lattice, is shown to be modified by the presence of a field emitting impurity or defect. …”
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  8. 348
  9. 349
    Publicado 2004
    “…This document concerns the proposal to negotiate an amendment to an existing contract for the supply of Niobium-Titanium alloy bars for the LHC. For the reasons explained in this document, the Finance Committee is invited to approve an amendment to an existing contract with the firm WAH CHANG (USA) for the supply of an additional 64.2 tonnes of Niobium-Titanium alloy bars for an amount exceeding the previously approved amount by up to 6 707 932 US dollars (8 349 363 Swiss francs), not subject to revision, bringing the total to a maximum amount of up to 51 786 805 US dollars (64 459 036 Swiss francs). …”
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  10. 350
    por Peck, M A
    Publicado 2000
    “…The present work presents the results of a systematic study of superconducting and structural properties of niobium films sputter deposited onto the inner walls of radiofrequency copper resonators. …”
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  11. 351
    “…The cavities are made of bulk copper with thin niobium film coated. They will be operated at 101.28 MHz at 4.5 K providing 6 MV/m accelerating gradient with 10 W power dissipation. …”
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  12. 352
  13. 353
  14. 354
    “…Niobium oxide (Nb(2)O(5)) is a semiconductor that exhibits photocatalytic properties, making it potentially valuable in addressing air pollution, self-cleaning, and self-disinfection in cement-based materials (CBMs). …”
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  15. 355
  16. 356
    “…Here, we propose a strategy of wrapping deleterious inclusions with corrosion-resistant niobium armour (Z phase). After systematic theoretical screening, we introduce minor Nb into duplex stainless steels (DSSs) to form inclusion@Z core-shell structures, thus isolating the inclusions from corrosive environments. …”
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  17. 357
    “…The combinations of 1-butyl-3-methylimidazolium chloride with NbCl(5) yielded ionic mixtures with different melting point temperatures and acidity depending on the niobium molar fraction. The mixtures were characterized by thermal (DSC) and spectroscopic (FT-IR and (1)H NMR) analysis. …”
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  18. 358
    “…We report layered potassium niobate (K(4)Nb(6)O(17)) nanolamina as adsorbent to remove toxic Sr(2+), Ba(2+) and Cs(+) cations from wastewater. …”
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  19. 359
  20. 360
    “…With the corrected Sellmeier equation of lithium niobate, the propagation of transverse magnetic mode surface plasmon polaritons in an air/graphene/lithium niobate structure was studied when monolayer graphene was tuned by down polarization direction ferroelectric domain with different polarization levels. …”
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