يعرض 641 - 660 نتائج من 1,762 نتيجة بحث عن '(( 200 μ decrease ) OR ( 10 ((meet decrease) OR (((mean decrease) OR (a decrease)))) ))*', وقت الاستعلام: 0.22s تنقيح النتائج
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  10. 650

    Wind energy potential along the onshore and offshore Qatar حسب Mohammed, Aboobacker Valliyil

    منشور في 2020
    "…cant increase or decrease of wind power around Qatar in the last 40 years in most of the locations, while there is a slight decreasing trend in the o?…"
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  11. 651
  12. 652
  13. 653

    Pd nanocrystals encapsulated in MOF-derived Ni/N-doped hollow carbon nanosheets for efficient thermal CO oxidation: unveiling the effect of porosity حسب Ipadeola, Adewale K.

    منشور في 2023
    "…The obtained Pd/Ni-MOF-HNC possesses hollow carbon sheets with a great surface area (153.05 m2 g−1), pore volume (0.12 cm3 g−1), rich Pd/Ni-Nx active sites, Ni-metal defects, rich N-content (7.53 at%), mixed Pd/Ni-oxide phases, and uniformly distributed ultra-small Pd nanocrystals (7.03 ± 1.10 nm); meanwhile, Pd/Ni-MOF-NC formed without etching had no porosity and less Ni-metal defects. …"
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  14. 654

    Synthesis and electrochemical properties of nickel oxide/carbon nanofiber composites حسب Al-Enizi, Abdullah M.

    منشور في 2014
    "…The electrospinning of polyacrylonitrile (PAN) with a polyaniline and graphene sol–gel mixture produced uniform, smooth fibers with an average diameter of 0.3 μm. These electrospun fibers were stabilized for 2 h at 200 °C and then carbonized at 800 °C for 5 h. …"
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  15. 655
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    Nickel Toxicity Interferes with NO3−/NH4+ Uptake and Nitrogen Metabolic Enzyme Activity in Rice (Oryza sativa L.) حسب Rizwan, Muhammad

    منشور في 2022
    "…We evaluated the effects of Ni concentrations on nitrate (NO3−) and ammonium (NH4+) concentrations, and nitrogen metabolism enzyme activity in rice seedlings grown in hydroponic systems, using different Ni concentrations. A Ni concentration of 200 µM significantly decreased the NO3− concentration in rice leaves, as well as the activities of nitrate reductase (NR), nitrite reductase (NiR), glutamine synthetase (GS), and glutamate synthetase (GOGAT), respectively, when compared to the control. …"
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  18. 658
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