يعرض 381 - 400 نتائج من 770 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( 25 10 decrease ) OR ( a step decrease ))))*', وقت الاستعلام: 0.16s تنقيح النتائج
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    Effects of combined calcium hypochlorite and chlorine dioxide on drinking water quality in Qatar and disinfection by-products formation حسب Mohamed, Elsamoul H.

    منشور في 2017
    "…The bottles were spiked with Ca(ClO)2 in sequence to give concentration of 0.2, 0.4, 0.6, 0.8, 1.0, and 1.2 mg/L as free chlorine. The mixtures were stored for 7 days at 25°C in the dark then heated to 45°C for two days more, and analyzed daily for physical and chemical parameters. …"
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    Nanoclay compatibilization of phase separated polysulfone/polyimide films for oxygen barrier حسب Ammar, Ali

    منشور في 2017
    "…Thermal decomposition (TGA) measurements of PSF/PI films showed a decrease in thermal stability upon adding C30B due to its surfactant modification, while film mechanical tensile modulus properties improved slightly by adding low concentration of C30B (~ 1 mass%), but higher nanoclay loading decreased tensile strength and elongation at break. …"
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  18. 398

    Association between central obesity indices and iron status indicators among Qatari adults حسب Kerkadi, Abdelhamid

    منشور في 2021
    "…This study aimed to investigate the link between abdominal obesity indices and iron status among adults in Qatar. A random sample of 1000 healthy Qatari adults, aged 20–50 years, was obtained from Qatar Biobank study. …"
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  19. 399

    Screening the growth inhibition mechanism of sulfate reducing bacteria by chitosan/lignosulfonate nanocomposite (CS@LS) in seawater media حسب Kashif, Rasool

    منشور في 2021
    "…As the nanocomposite concentration was increased from 50 to 500 µg/mL, the specific sulfate reduction rate (SSRR) decreased from 0.278 to 0.036 g-sulfate/g-VSS*day showing a relative sulfate reduction inhibition of 86.64% as compared to that of control. …"
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