يعرض 121 - 140 نتائج من 784 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( a step decrease ) OR ( 19 a decrease ))))*', وقت الاستعلام: 0.23s تنقيح النتائج
  1. 121
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    RF-based drone detection and identification using deep learning approaches: An initiative towards a large open source drone database حسب Al-Sa'd, Mohammad F.

    منشور في 2019
    "…Unfortunately, breakthroughs in relevant technologies are hindered by the lack of open source databases for drone's Radio Frequency (RF) signals, which are remotely sensed and stored to enable developing the most effective way for detecting and identifying these drones. This paper presents a stepping stone initiative towards the goal of building a database for the RF signals of various drones under different flight modes. …"
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    Effects of SARS-CoV-2 Alpha, Beta, and Delta variants, age, vaccination, and prior infection on infectiousness of SARS-CoV-2 infections حسب Qassim, Suelen H.

    منشور في 2022
    "…Children <10 years of age had 2.18 higher Ct cycles (95% CI: 1.88-2.48) than those 10-19 years of age. Compared to unvaccinated individuals, the Ct value was higher among individuals who had received one or two vaccine doses, but the Ct value decreased gradually with time since the second-dose vaccination. …"
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  7. 127
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    Pulpal blood flow changes and pain scores related to using superelastic 0.018-inch nickel titanium as the first orthodontic alignment archwire: A prospective clinical trial حسب Alhaija, Elham S.Abu

    منشور في 2021
    "…Pain scores were recorded using a visual analogue scale (VAS). A repeated measures ANOVA and a post-hoc Bonferroni comparison tests were conducted to examine differences at the different time points before and during orthodontic alignment. …"
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    Global, regional, and national age-sex-specific burden of diarrhoeal diseases, their risk factors, and aetiologies, 1990–2021, for 204 countries and territories: a systematic analy... حسب Hmwe Hmwe, Kyu

    منشور في 2024
    "…FindingsIn 2021, diarrhoeal diseases caused an estimated 1·17 million (95% uncertainty interval 0·793–1·62) deaths globally, representing a 60·3% (50·6–69·0) decrease since 1990 (2·93 million [2·31–3·73] deaths). …"
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    article
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    Occurrence and removal characteristics of phthalate esters from bottled drinking water using silver modified roasted date pits حسب Alhaddad F.A.

    منشور في 2021
    "…The removal percentage was increased from 90 to 99% by increasing the temperature from 30 to 50��C and then decreased to 92.3% at 60��C. Conclusion: RODP was successfully used as an effective adsorbent for phthalate esters removal from drinking water. …"
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    Enhancing the electrocoagulation process for harvesting marine microalgae (Tetraselmis sp.) using interdigitated electrodes حسب A. Khatib, Wardan

    منشور في 2021
    "…In this study, 10 min electrolysis time was found to be sufficient to harvest 82.4% microalgae with 1 cm electrode distance and 50 mA/cm2 current density. Furthermore, decreasing the electrode distance to 0.5 cm increased the algal harvesting efficiency to 96.18%. …"
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    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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  18. 138

    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
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