Mostrando 981 - 1,000 Resultados de 8,547 Para Buscar '"Sol"', tiempo de consulta: 0.20s Limitar resultados
  1. 981
    “…Nanocrystalline Eu(3+), Tb(3+) co-doped Lu(2)O(3) powders with a maximum size of 25.5 nm were prepared by the sol-gel process, using lutetium, europium and terbium nitrates as precursors, and ethanol as a solvent. …”
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  2. 982
    “…In the present work, ZnO quantum dots (QDs) have been prepared by the sol–gel method, and the performance of the QDs has been improved. …”
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  3. 983
    “…Maleimide-functionalized polystyrene (PSMA-SiO(2)/TiO(2)) hybrid nanocomposites were prepared by sol–gel reaction starting from tratraethoxysilane (TEOS) and titanium isopropoxide in the solution of polystyrene maleimide in 1,4-dioxane. …”
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  4. 984
    “…[Image: see text] Reactions of Ta(NMe(2))(5) and n-propylamine are shown to be an effective system for sol-gel processing of Ta(3)N(5). Ordered macroporous films of Ta(3)N(5) on silica substrates have been prepared by infiltration of such a sol into close-packed sacrificial templates of cross-linked 500 nm polystyrene spheres followed by pyrolysis under ammonia to remove the template and crystallize the Ta(3)N(5). …”
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  5. 985
    “…We resorted to the nanoencapsulation of this enzyme in wet silica sol-gels for studying the role of intrasubunit local mobility in its allosteric activation under the suppression of quaternary transition. …”
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  6. 986
    “…OBJECTIVE: We examine differences in prevalence of diabetes and rates of awareness and control among adults from diverse Hispanic/Latino backgrounds in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL). RESEARCH DESIGN AND METHODS: The HCHS/SOL, a prospective, multicenter, population-based study, enrolled from four U.S. metropolitan areas from 2008 to 2011 16,415 18–74-year-old people of Hispanic/Latino descent. …”
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  7. 987
  8. 988
    “…Monolithic macroporous zirconia (ZrO(2)) derived from ionic precursors has been successfully fabricated via the epoxide-mediated sol-gel route accompanied by phase separation in the presence of propylene oxide (PO) and poly(ethylene oxide) (PEO). …”
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  9. 989
    “…Nanocrystalline lithium ferrite Li (0.5) Fe (1.7) Mg (0.8) O (4) powders were synthesized by the sol–gel auto-combustion method from the corresponding metal nitrates using citric acid as fuel. …”
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  10. 990
  11. 991
    “…This modification was reached by the formation of a two-level relief hierarchy by means of a sol-gel approach that included dip coating with subsequent shock drying. …”
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  12. 992
    “…Organic/inorganic hybrid materials are attracting considerable attention in the biomedical area. The sol-gel process provides a convenient way to produce many bioactive organic–inorganic hybrids. …”
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  13. 993
    “…Indium tin oxide (ITO) still remains as the main candidate for high-performance optoelectronic devices, but there is a vital requirement in the development of sol-gel based synthesizing techniques with regards to green environment and higher conductivity. …”
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  14. 994
  15. 995
    “…A highly sensitive self-powered humidity sensor has been realized from AuNPs hybrid black zinc oxide (ZnO) nanorods prepared through a sol-gel method. XRD pattern reveals that both ZnO and ZnO/AuNPs exhibit a wurtzite structure. …”
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  16. 996
  17. 997
    “…In fact, after their preparation at low temperature by the sol-gel method, they still have reactive silanol groups due to incomplete condensation reactions that can be removed by accelerating these processes upon heating them in controlled experimental conditions. …”
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  18. 998
    “…The paper proposed a method to improve the anti-oxidation performance of carbon fibers (CF) at high temperature environment by coating silicon dioxide (SiO(2)) and silicon carbide (SiC). The modified sol-gel method had been used to ensure the proper interface between fibers and coating. …”
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  19. 999
  20. 1000
    “…Using Ti(OC(4)H(9))(4) as a precursor, Fe(NO(3))(3)⋅9H(2)O as the source of iron, and NH(4)NO(3) as the source of nitrogen, an Fe/N codoped TiO(2) catalyst was prepared using a sol-gel hydrothermal method. The as-prepared powders were characterized using X-ray powder diffraction, electron spectroscopy for chemical analysis, Fourier-transform infrared spectroscopy, and ultraviolet-visible spectrophotometry. …”
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