يعرض 181 - 200 نتائج من 580 نتيجة بحث عن '(( 50 ((mean decrease) OR (a decrease)) ) OR ((( i w decrease ) OR ( a point decrease ))))*', وقت الاستعلام: 0.22s تنقيح النتائج
  1. 181
  2. 182

    Global age-sex-specific fertility, mortality, healthy life expectancy (HALE), and population estimates in 204 countries and territories, 1950–2019: a comprehensive demographic anal... حسب Haidong, Wang

    منشور في 2020
    "…Background Accurate and up-to-date assessment of demographic metrics is crucial for understanding a wide range of social, economic, and public health issues that affect populations worldwide. …"
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  3. 183

    Global age-sex-specific fertility, mortality, healthy life expectancy (HALE), and population estimates in 204 countries and territories, 1950–2019: a comprehensive demographic anal... حسب Haidong, Wang

    منشور في 2020
    "…Background Accurate and up-to-date assessment of demographic metrics is crucial for understanding a wide range of social, economic, and public health issues that affect populations worldwide. …"
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    article
  4. 184

    Seasonal Variations of Acoustic Properties in Ropme Sea Area حسب El Gindy, A. A. H. [احمد عبد الحميد الجندي]

    منشور في 1993
    "…Sound speed was similar in the upper 60 meters. From an acoustic point of view, the basin west of 56°E is considered as a shallow area while the Gulf of Oman is a deep area. …"
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  5. 185
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  10. 190

    The relationship between heavy metal concentration and soil mycoflora in the Gizan region, Saudi Arabia حسب Falih, A. M. [عبد الله مساعد خلف الفالح]

    منشور في 1997
    "…There was a marked decrease in bacterial counts, as well as a significant decline in numbers of actinomycetes, nitrifying bacteria and fungi. …"
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  11. 191

    Evacuated tube heat pipe solar collector for Encontech engine-driven reverse osmosis solar desalination حسب Takalkar, Gorakshnath

    منشور في 2020
    "…The maximum energetic efficiency of 52.5% is obtained for h vacuum (1 W/m2 K). Obtained results further demonstrate that the energetic and exergetic performances of the ETHPSC are higher at T i = 50°C. …"
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  12. 192

    Performance assessment of inductive power transfer for railway applications حسب Almuhannadi, D.

    منشور في 2015
    "…The practical implementation has been conducted at a rated voltage of 100V DC at 50kHz and input power of 80W. …"
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  13. 193

    Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) حسب Connor, Izumi

    منشور في 2022
    "…The slope suggests that removal of C as CaCO3, organic matter (CH2O) or gas exchange (FCO2) is occurring with a ratio of ΔCaCO3/(ΔCH2O or FCO2) = 1:2.86. The tracer Alk*, defined as the deviation of potential alkalinity (AP) (where AP = TA + 1.26 [NO3]) from conservative potential alkalinity ((ApC), (ApC = S Ap′S′ where A'P and S′ are mean values for the whole surface ocean) has values primarily determined by CaCO3 precipitation and dissolution. …"
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  14. 194

    Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) حسب Connor, Izumi

    منشور في 2022
    "…The slope suggests that removal of C as CaCO3, organic matter (CH2O) or gas exchange (FCO2) is occurring with a ratio of ΔCaCO3/(ΔCH2O or FCO2) = 1:2.86. The tracer Alk*, defined as the deviation of potential alkalinity (AP) (where AP = TA + 1.26 [NO3]) from conservative potential alkalinity ((ApC), (ApC = S Ap′S′ where A'P and S′ are mean values for the whole surface ocean) has values primarily determined by CaCO3 precipitation and dissolution. …"
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    article
  15. 195
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    The Structure of the Free Volume in Poly(styrene-co-acrylonitrile) from Positron Lifetime and Pressure Volume Temperature (PVT) Experiments حسب Dlubek, Gunter

    منشور في 2004
    "…The mean hole volume, vh, varies in PS between 105 Å3 (27 °C) and 220 Å3 (190 °C), and shows a systematic decrease with increasing AN content, at Tg from 121 Å3 for PS to 102 (±2) Å3 for SAN50. …"
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  19. 199

    Foamed phase change materials based on recycled polyethylene/paraffin wax blends حسب Sobolčiak, Patrik

    منشور في 2021
    "…The porosity of FPCMs was about 85–87 vol.% and resulting thermal conductivity 0.054–0.086 W/m·K. Differential Scanning Calorimetry was used to determine the specific enthalpies of melting (22.4–25.1 J/g) what is the latent heat of materials utilized during a heat absorption. …"
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  20. 200

    Trends in prevalence of depression and anxiety symptoms and effects of sociodemographic variables before and after the first wave of COVID-19 in Qatar حسب Khaled, Salma M.

    منشور في 2022
    "…The data for 2020/21 showed a 35.1% and 29.2% decrease in depression and anxiety symptoms scores compared to pre-pandemic years (2017/2018) after adjusting for sociodemographic factors. …"
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