يعرض 641 - 660 نتائج من 755 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( i e decrease ) OR ( a step decrease ))))*', وقت الاستعلام: 0.17s تنقيح النتائج
  1. 641

    Application of Fe3O4 magnetite nanoparticles grafted in silica (SiO2) for oil recovery from oil in water emulsions حسب Elmobarak W.F.

    منشور في 2021
    "…An excellent %ηdem ≥ 90% was achieved Coil in the range 50–2000 mg/L. Using an MDdose as low as 10 mg/L attained a %ηdem in the range of 93%–94.3% for O/W mixtures with Coil < 2000 mg/L, which slightly decreased to ∼90% for higher concentrations. …"
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  2. 642
  3. 643

    Thermodynamic analysis of solar-driven chemical looping steam methane reforming over Cr2O3/Cr redox pair حسب Bhosale, Rahul

    منشور في 2019
    "…For this study, two process configurations are considered: a) CS process - Cr2O3/Cr based MR open process, and b) CSH process- Cr2O3/Cr based MR and WS semi-open process. …"
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  4. 644
  5. 645

    Caffeine use or napping to enhance repeated sprint performance after partial sleep deprivation: Why not both? حسب Romdhani, Mohamed

    منشور في 2021
    "…Purpose: To compare the effect of a 20-minute nap opportunity (N20), a moderate dose of caffeine (CAF; 5 mg·kg-1), or a moderate dose of caffeine before N20 (CAF+N) as possible countermeasures to the decreased performance and the partial sleep deprivation-induced muscle damage. …"
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  6. 646

    The Influence of Qatari Dust on the Element Composition of Marine Plankton حسب Yigiterhan, Oguz

    منشور في 2021
    "…The excess concentrations relative to average dust from Qatar for most elements (except Cd) decreased with distance from shore. This may be due to contamination or uncertainties with the lithogenic correction or due to our sampling locations in a marginal sea, dominated by dust input. …"
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  7. 647
  8. 648
  9. 649

    Biochar of spent coffee grounds as per se and impregnated with tio2: Promising waste-derived adsorbents for balofloxacin حسب El-Azazy, Marwa

    منشور في 2021
    "…BET analysis indicated that the impregnation with TiO2 has increased the surface area (50.54 m2 /g) and decreased the pore size and volume. …"
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  10. 650

    Association of Macronutrients Intake with Body Composition and Sarcopenic Obesity in Children and Adolescents: A Population-Based Analysis of the National Health and Nutrition Exam... حسب Yang, Bing

    منشور في 2023
    "…Substituting carbohydrate (5 %E) with fat decreased muscle mass by 0.03 (95% CI 0.01 to 0.06) but increased fat mass by 0.03 (95% CI 0.01 to 0.06) and increased the prevalence of sarcopenic obesity by 254% (95% CI 15% to 487%). …"
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  11. 651
  12. 652
  13. 653
  14. 654
  15. 655

    The electrical and optical properties of poly (4-ethylidene-l, 3-cyclopentylene vinylene) حسب Shahada, Lamis [لميس شحادة]

    منشور في 1989
    "…Under vacuum the activation energy is 1.38 eV at T > 377°K. The electrical conductivity of the annealed samples increases at low temperature and decreases at high temperature. …"
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  16. 656

    Method to prepare ternary methanol electro-oxidation catalysts for direct methanol fuel cell applications حسب Yousaf, Ammar Bin

    منشور في 2017
    "…The highest catalyst activity of 12.36 mA/mg has been found for the Pt-Ru/NiO-MC, which is higher than the commercial Pt-Ru/C (E-TEK) catalyst. The measured catalytic activity decreased in the order: Pt-Ru/NiO-MC > Pt-Ru/CoO-MC > Pt-Ru/Fe2O3-MC > Pt-Ru/C (E-TEK). …"
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  17. 657
  18. 658
  19. 659
  20. 660