يعرض 201 - 220 نتائج من 1,774 نتيجة بحث عن '(( 5 ((we decrease) OR (nn decrease)) ) OR ( 10 (((peter OR per) decrease) OR (a decrease)) ))', وقت الاستعلام: 0.27s تنقيح النتائج
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    EFFECT OF PHENOL AS A CONTAMINANT ON THE WILD PEARL OYSTER PINCTADA IMBRICATA RADIATA IN QATAR: ECOTOXICOLOGICAL APPROACH AND USE OF OYSTER SHELL STRUCTURE AS A POTENTIAL MITIGATIO... حسب BARAH, FARAHNAZ GHOLAMREZA

    منشور في 2022
    "…The highest phenol removal of real olive wastewater was at pH 10 and room temperature by OSNP-S (56.78%). Based on the adsorption isotherm model, the adsorption capacity decreased by temperature and the coefficient of determination R2 of the Freundlich adsorption isotherm model showed the best equilibrium data for phenol adsorption with the physical interaction adsorption process. …"
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    Effect of using Cement Kiln Dust as a nano-material on the strength of cement mortars حسب Alnahhal, Wael

    منشور في 2017
    "…The CKD was milled up to 4 hours in a planetary ball mill. In addition to the control cement mortar mixture with 0% CKD, a total of 28 concrete mortar mixtures were prepared with four different replacement percentages of nano-CKD (5, 10, 15, and 20 %), and seven different milling times (1, 1.5, 2, 2.5, 3, 3.5, and 4 hours). …"
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    Preparation and characterization of chemically synthesized polyaniline–polystyrene blends as a carbon dioxide gas sensor حسب J., Bhadra

    منشور في 2013
    "…Generally, there are two prerequisites for choosing the blended polymers: good compatibility with PS molecules and comparatively high electrical conductivity. Therefore, we use different monomer ratios of PS keeping the aniline concentration constant while preparing the five blends. …"
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    Sorption of benzene and naphthalene on (semi)-arid coastal soil as a function of salinity and temperature حسب NgueleuS.K.

    منشور في 2018
    "…The sorption of naphthalene was not affected by the change in salinity but increased by 18% when the temperature decreased from 35 to 5 �C. A sorption kinetic model was also applied to define the sorption behavior of benzene and naphthalene for the coastal soil collected in Qatar and the best fits were achieved with the Langmuir sorption isotherm.…"
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    Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar حسب Chemaitelly, Hiam

    منشور في 2023
    "…The post-first omicron phase saw a drastic drop to 0.10 (95% CI 0.08 to 0.14) per 1000 person years, a 95.4% reduction. …"
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