يعرض 21 - 40 نتائج من 514 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( 5 wt decrease ) OR ( 5 w decrease ))))', وقت الاستعلام: 0.20s تنقيح النتائج
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    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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    Functionalization of silica-coated magnetic nanoparticles as powerful demulsifier to recover oil from oil-in-water emulsion حسب Elmobarak W.F.

    منشور في 2021
    "…This study presents an innovative approach for the preparation of Fe3O4 nanoparticles covered with SiO2 shell (denoted as Fe–Si-MNP), which were used to recover oil recovery from oil-in-water emulsion (O/W-emul). The Fe–Si-MNP were prepared with differing silica layer thicknesses (5 nm [Fe–Si-1], 8 nm [Fe–Si-2], 10 nm [Fe–Si-3], and 15 nm [Fe–Si-4]) and tested for the percentage of oil separation (%Soil) under different dosages (DMNP), oil concentration (Doil), surfactant dosages (Dsur), and pH. …"
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    A novel index based on planktonic copepod reproductive traits as a tool for marine ecotoxicology studies حسب Mohamed Bakr, Hussain

    منشور في 2020
    "…At high concentrations, cadmium and silver induce an increase in EPR in the copepods Acartia tonsa and Acartia hudsonica, while exposure to mercury decreases EPR in adults by 50%. All three metals affect HS, with mercury inducing a stronger effect than cadmium and silver. …"
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    Appropriateness of gentamicin therapeutic drug monitoring at a Middle Eastern tertiary hospital setting: a retrospective evaluation and quality audit حسب Al-Sulaiti, Fatima Khalifa

    منشور في 2024
    "…Objective: This study aimed to evaluate the appropriateness of gentamicin therapeutic drug monitoring (TDM) at a tertiary care hospital in Qatar. Methods: A one-year quantitative retrospective chart review of all gentamicin TDM records was conducted. …"
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    Enhanced boron removal by electricity generation in a microbial fuel cell حسب Ping, Qingyun

    منشور في 2016
    "…Two scenarios were examined, the MFC as a pretreatment process and the MFC as a post-treatment step in connection with conventional desalination. …"
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