يعرض 1 - 3 نتائج من 3 نتيجة بحث عن '(((( 50 a decrease ) OR ( 5 a decrease ))) OR ((( _ test decrease ) OR ( _ past decrease ))))~', وقت الاستعلام: 0.16s تنقيح النتائج
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    Combined effects of treated domestic wastewater, fly ash, and calcium nitrite toward concrete sustainability حسب Abdelrahman Abushanab (17268940)

    منشور في 2021
    "…Concrete hardened properties were tested at 7, 28, and 90 days. Test results revealed that TWW slightly decreased concrete compressive and flexural strengths by 5%–12%, whereas it dramatically increased the porosity and chloride permeability by about 40%. …"
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    Trends in prevalence of blindness and distance and near vision impairment over 30 years: an analysis for the Global Burden of Disease Study حسب Rupert Bourne (603842)

    منشور في 2020
    "…Globally, between 1990 and 2020, among adults aged 50 years or older, age-standardised prevalence of blindness decreased by 28·5% (–29·4 to −27·7) and prevalence of mild vision impairment decreased slightly (–0·3%, −0·8 to −0·2), whereas prevalence of moderate and severe vision impairment increased slightly (2·5%, 1·9 to 3·2; insufficient data were available to calculate this statistic for vision impairment from uncorrected presbyopia). …"