يعرض 861 - 880 نتائج من 911 نتيجة بحث عن '(( 2 step decrease ) OR ( 5 ((greater decrease) OR (((mean decrease) OR (a decrease)))) ))', وقت الاستعلام: 0.18s تنقيح النتائج
  1. 861

    Facile Electrochemical Synthesis of Highly Efficient Copper-Cobalt Oxide Nanostructures for Oxygen Evolution Reactions حسب Nath, Narayan Chandra Deb

    منشور في 2020
    "…An optimized nanopetal structure of CuxCo3-xO4 (x = 0.95, annealed at 200 °C) shows a considerably high Faradaic efficiency (∼93%) with a remarkably low overpotential (∼230 mV) at a benchmark current density (J) of 10 mA cm-2; at the same J in an alkaline solution (1 M KOH) for OER, it also exhibits high durability (up to 100 h). …"
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  2. 862

    Effect of the length of silicon nano-dot/wire on band gap حسب Hassan, Walid M.I.

    منشور في 2014
    "…We will report on the role of the length of silicon nanowire (SNW) in determining the band gap of a structure. We find that the band gap decreases with SNW length for the same diameter and approaches the band gap for an ideal infinitely long SNW. …"
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  3. 863

    Emerging clay-aryl-gold nanohybrids for efficient electrocatalytic proton reduction حسب Jlassi, Khouloud

    منشور في 2018
    "…Both nanohybrids showed efficient electrochemical activity for HER in acidic condition (0.1 M H2SO4) with high current density up to −25 mA.cm−2 at −1 V and 0.148 mV onset. Negligible decreasing in current density and slight shift in onset was observed after 1000 cycles. …"
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  4. 864

    Experimental determination and computational fluid dynamics predictions of pressure loss in close-coupled elbows (RP-1682) حسب Salehi, Mohammad

    منشور في 2017
    "…The results of this study showed that the loss coefficient increased as a function of separation distance between the elbows in a Z-configuration and decreased in a U-configuration. …"
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  5. 865
  6. 866
  7. 867
  8. 868

    Electrochemical oxidation of ammonia (NH4+/NH3) ON synthesized nickel-cobalt oxide catalyst حسب Almomani F.

    منشور في 2021
    "…The reported Pgen were 0.55, 0.85, 1.1 and 0.0.93 mW/cm2 for Ni–C, Co10/Ni–C, Co20/Ni–C and Co40/Ni–C. A concentration of Co higher than 40% decreased cell potential (Vcell) and reduced the percentage removal of ammonia (%REAmm). …"
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  9. 869
  10. 870
  11. 871

    Simulation and experimental study of underwater dissimilar friction-stir welding between aluminium and steel حسب Eyvazian, Arameh

    منشور في 2020
    "…Theeffects of processing parameters on the formation of intermetallic compounds (IMCs) atthe Al/St interface, microstructural characteristics, and mechanical property of dissimilarweldments were studied and addressed. By decreasing tool rotational speed (w), increas-ing traverse velocity (v), and employing cooling medium, peak temperature continuouslyreduced (down to ?…"
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  12. 872

    Do unemployment benefits affect the choice of debt source? حسب Ben-Nasr, Hamdi

    منشور في 2019
    "…Finally, we find that debt maturity (security) decreases (increases) when UI benefits increase. - 2019 Elsevier B.V.…"
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  13. 873

    Persistent viral infectivity after 27 days from COVID-19 symptoms onset حسب Zupin, Luisa

    منشور في 2021
    "…The persistence of SARS-CoV- 2 in pharyngeal swabs belonging to patients affected by COVID-19 is not a rare occurrence. …"
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  14. 874

    Co-doped zigzag graphene nanoribbon based gas sensor for sensitive detection of H2S: DFT study حسب Salih, Ehab

    منشور في 2021
    "…Moreover, the adsorption distance (D) between H2S and Cu/Zn-ZGNR decreased remarkably to 2.23 Å and an S–Cu bond was generated. …"
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  15. 875
  16. 876
  17. 877
  18. 878

    Structural performance and moment redistribution of basalt FRC continuous beams reinforced with basalt FRP bars حسب Abushanab, Abdelrahman

    منشور في 2021
    "…This study investigated the structural performance and moment redistribution of basalt fiber reinforced concrete (BFRC) continuous beams reinforced with basalt fiber reinforced polymers (BFRP) bars. A total of 10 reinforced concrete (RC) continuous beams over two equal spans of 1800 mm were tested under five-point loading until failure. …"
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  19. 879
  20. 880

    Tailoring the defects of sub-100 nm multipodal titanium nitride/oxynitride nanotubes for efficient water splitting performance حسب Eid, Kamel

    منشور في 2021
    "…These defects decreased the bandgap energy to 2.4 eV, increased visible-light response, and enhanced the incident photon-to-current collection efficiency (IPCE) and the photocurrent density of TiONxNTs by nearly 8 times compared with TiO2NTs, besides a quick carrier diffusion at the nanotube/electrolyte interface. …"
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