يعرض 861 - 880 نتائج من 893 نتيجة بحث عن '(( 5 points decrease ) OR ( 5 ((meer decrease) OR (((we decrease) OR (a decrease)))) ))', وقت الاستعلام: 0.22s تنقيح النتائج
  1. 861
  2. 862

    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. 863
  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

    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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  6. 866
  7. 867
  8. 868

    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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  9. 869

    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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  10. 870

    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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  11. 871
  12. 872
  13. 873
  14. 874
  15. 875
  16. 876
  17. 877

    Selective adsorption of carbon dioxide, methane and nitrogen using resorcinol-formaldehyde-xerogel activated carbon حسب Awadallah, Ahmed

    منشور في 2017
    "…Adsorption/desorption isotherms of CO2, CH4, and N2 gases onto RF-ACX adsorbent were measured gravimetrically by a magnetic suspension microbalance at five different temperatures (20, 30, 40, 50 and 60 °C) in the pressure range of 0–1 MPa. …"
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  18. 878

    Trends of use of SGLT2 inhibitors in Qatar حسب Zaghloul, Nancy

    منشور في 2021
    "…Background: Type 2 diabetes mellitus (T2DM) represents a growing health challenge in Qatar and worldwide. …"
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  19. 879
  20. 880