يعرض 661 - 680 نتائج من 688 نتيجة بحث عن '(( 2020 a decrease ) OR ( 10 ((meter decrease) OR (((nn decrease) OR (mean decrease)))) ))*', وقت الاستعلام: 0.19s تنقيح النتائج
  1. 661

    Spatial-temporal pattern of cultivated land productivity based on net primary productivity and analysis of influencing factors in the Songhua River basin حسب Yang, Shiliang

    منشور في 2022
    "…The results showed that: (1) the area of cultivated land in SRB decreased, but NPP of cultivated land area increased, during 2000-2020; (2) spatially, NPP was relatively low in the middle of the basin and gradually increased towards the periphery; (3) The main positive factors were the normalized difference vegetation index (NDVI), slope, precipitation, evapotranspiration, and total nitrogen, while the main negative factors were temperature, Ratio Vegetation Index, and total phosphorus. …"
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  2. 662

    Global, regional, and national burden of household air pollution, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021 حسب Fiona B, Bennitt

    منشور في 2025
    "…FindingsIn 2021, 2·67 billion (95% uncertainty interval [UI] 2·63–2·71) people, 33·8% (95% UI 33·2–34·3) of the global population, were exposed to HAP from all sources at a mean concentration of 84·2 μg/m3. Although these figures show a notable reduction in the percentage of the global population exposed in 1990 (56·7%, 56·4–57·1), in absolute terms, there has been only a decline of 0·35 billion (10%) from the 3·02 billion people exposed to HAP in 1990. …"
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    article
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    Impact of COVID-19 lockdown on smoking (waterpipe and cigarette) and participants' BMI across various sociodemographic groups in Arab countries in the Mediterranean Region حسب Al Sabbah, Haleama

    منشور في 2022
    "…METHODS: The data were derived from a large-scale retrospective cross-sectional study using a validated online international survey from 38 countries (n=37207) conducted between 17 April and 25 June 2020. …"
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  10. 670

    Correlated decay of triplet excitations in the shastry-sutherland compound SrCu2 (BO3)2 حسب Zayed, M.E.

    منشور في 2014
    "…The temperature dependence of the gapped triplet excitations (triplons) in the 2D Shastry-Sutherland quantum magnet SrCu2(BO3)2 is studied by means of inelastic neutron scattering. The excitation amplitude rapidly decreases as a function of temperature, while the integrated spectral weight can be explained by an isolated dimer model up to 10 K. …"
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    A MEASUREMENT CAMPAIGN TO INVESTIGATE THE EFFECT OF USING SOFT RAILPADS ON GROUND-BORNE VIBRATIONS FROM UNDERGROUND RAILWAYS حسب Alsharo, Anas

    منشور في 2023
    "…Insertion Gains were calculated from the acquired data, and the findings demonstrated that using the soft resilient railpads decreased the vibration level on the free surface by around 10 dB for the majority of frequencies in the range of 40-200 Hz.…"
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