يعرض 641 - 660 نتائج من 1,769 نتيجة بحث عن '(( 5 ((wt decrease) OR (mean decrease)) ) OR ( 10 (((meer OR meet) decrease) OR (a decrease)) ))', وقت الاستعلام: 0.16s تنقيح النتائج
  1. 641
  2. 642

    Forecast of the outbreak of COVID-19 using artificial neural network: Case study Qatar, Spain, and Italy حسب Shawaqfah M.

    منشور في 2021
    "…The model sensitivity was analyzed using the root mean square error (RMSE), the mean absolute percentage error and the regression coefficient index R2, which yielded highly accurate values of the predicted correlation for the infected and dead cases of 0.99 for the dates considered. …"
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  3. 643

    Tailoring electrocatalytic properties of Pt nanoparticles grown on Ti3C2Tx MXene surface حسب Filip, Jaroslav

    منشور في 2019
    "…Composites containing 14 wt% Pt showed HER with an onset potential of −75.9 mV and a current density of −10 mA cm−2 achieved at −226 mV. …"
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  4. 644

    The Structure of the Free Volume in Poly(styrene-co-acrylonitrile) from Positron Lifetime and Pressure Volume Temperature (PVT) Experiments حسب Dlubek, Gunter

    منشور في 2004
    "…The mean hole volume, vh, varies in PS between 105 Å3 (27 °C) and 220 Å3 (190 °C), and shows a systematic decrease with increasing AN content, at Tg from 121 Å3 for PS to 102 (±2) Å3 for SAN50. …"
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  5. 645
  6. 646

    Investigating the effect of polymer-modified graphene oxide coating on RO membrane fouling حسب Ashfaq, Mohammad Y.

    منشور في 2022
    "…The membrane surface characterization showed a decrease in membrane surface roughness from 74.7 nm to 69.0 nm and an increase in membrane hydrophilicity as the contact angle decreased from 41.7 ± 4.50 to 22.0 ± 1.10. …"
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  7. 647
  8. 648

    Higher egg consumption associated with increased risk of diabetes in Chinese adults - China Health and Nutrition Survey. حسب Wang, Yue

    منشور في 2020
    "…Logistic regression was used to examine the association. The mean age of the study population was 50·9 (sd 15·1) years. …"
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  9. 649
  10. 650
  11. 651
  12. 652
  13. 653

    Correlation of structural and mechanical properties for Al-Al2O3-SiC hybrid metal matrix composites حسب Ahamad, Naseem

    منشور في 2021
    "…Al-Al2O3-SiC hybrid composite has been developed through stir casting with addition of ceramics i.e. Al2O3-SiC (2.5 wt.%, 5.0 wt.%, 7.5 wt.% and 10.0 wt.%) in relative and symmetrical proportion. …"
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  14. 654
  15. 655
  16. 656

    Effects of superelastic nano-NiTi additions on electroless Ni –P coating properties under bending حسب MacLean M.

    منشور في 2019
    "…In this study, electroless Ni –P-nano-NiTi composite coatings containing 5.14 wt%, 6.07 wt%, and 7.02 wt % NiTi were subjected to three-point bend testing in order to determine bending properties. …"
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  17. 657

    Prospects Of Amino Acids And Ionic Liquids As Natural Gas Hydrate Inhibitors For Offshore Flow Assurance حسب Qureshi, M. Fahed Aziz

    منشور في 2018
    "…The inhibitors tend to show better hydrate inhibition effect at low pressures (40 bars) and their inhibition effect decreases as the pressure rises. At the same concentration (10 wt%), the ammonium-based ionic liquid [EA][Of] provided the inhibition effect similar to MEG and at the higher concentration (20 wt%) the amino acid glycine provided better hydrate inhibition effect than the MEG. …"
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  18. 658

    Synthesis and properties of HA/ZnO/CNT nanocomposite حسب Ding M.

    منشور في 2018
    "…The goal of this study was to examine the tribomechanical properties of hydroxyapatite (HA)/ZnO and HA/ZnO/CNT composite ceramics (carbon nanotubes; with different ratios 0.5 wt%, 1.0 wt%, and 1.5 wt%). The composites were synthesized using the hydrothermal method in an autoclave. …"
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  19. 659

    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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  20. 660

    Association Between Sleep Duration, Food Consumption Patterns and Obesity Among Adolescents in Qatar حسب Mohammed, Sara

    منشور في 2020
    "…Multiple regression analysis revealed that as the WC and BMI increased, consumption of healthy eating pattern decreased by 25% and 10 % respectively (p<0.001) Conclusion: Lack of sufficient sleep and decreased consumption of healthy foods have an association with increased risk of being obese among adolescents…"
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