يعرض 841 - 860 نتائج من 897 نتيجة بحث عن '(( 29 points decrease ) OR ( 5 ((((steer decrease) OR (mean decrease))) OR (a decrease)) ))', وقت الاستعلام: 0.21s تنقيح النتائج
  1. 841
  2. 842

    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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  3. 843
  4. 844

    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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  5. 845

    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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  6. 846

    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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  7. 847
  8. 848
  9. 849
  10. 850

    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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  11. 851
  12. 852
  13. 853

    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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  14. 854

    Long-Distance Vowel-to-Vowel Coarticulation in Arabic: Influences of Intervening Consonant Pharyngealization and Length حسب Ahmed, Sarah

    منشور في 2019
    "…Speakers of Egyptian Arabic were recorded saying sentences containing nonsense sequences of the form /baɁabaCV:/, where C was chosen from {/t/, /tˤ/, /t:/, /tˤ:/} and V was a long vowel /i:/, /a:/ or /u:/. Analysis of the first and second formants of the recorded vowels revealed that (a) vowel-to-vowel coarticulatory effects could sometimes extend to a distance of three vowels before the context vowel; (b) the consonant-to-vowel effects associated with pharyngealization were consistently seen at similar distances, while also decreasing in magnitude at greater distances from the triggering consonant; and (c) effects related to intervening consonant length were idiosyncratic, and in particular did not lead to consistent blocking of vowel-to-vowel effects. …"
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  15. 855

    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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  16. 856

    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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  17. 857

    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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  18. 858
  19. 859
  20. 860