يعرض 621 - 640 نتائج من 776 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( a step decrease ) OR ( 1 we decrease ))))*', وقت الاستعلام: 0.17s تنقيح النتائج
  1. 621

    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. …"
    احصل على النص الكامل
    احصل على النص الكامل
  2. 622

    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
    "…The rate of HAP-attributable DALYs was higher for males (1530·5, 1023·4–2263·6) than for females (1318·5, 866·1–1977·2). Approximately one-third of the HAP-attributable burden (518·1, 410·1–641·7) was mediated via short gestation and low birthweight. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
    article
  3. 623
  4. 624
  5. 625
  6. 626
  7. 627

    A vector quantization based k-NN approach for large-scale image classification حسب Ozan, Ezgi Can

    منشور في 2017
    "…The k-nearest-neighbour classifiers (k-NN) have been one of the simplest yet most effective approaches to instance based learning problem for image classification. …"
    احصل على النص الكامل
    احصل على النص الكامل
  8. 628
  9. 629

    Forced spectrum access termination probability analysis under restricted channel handoff حسب NoroozOliaee, MohammadJavad

    منشور في 2012
    "…This paper studies the performance of cognitive radio networks with dynamic multichannel access capability, but while considering realistic channel handoff assumptions, where cognitive users can only move/jump to their immediate neighboring channels. Specifically, we consider a cognitive access network with m channels in which a cognitive user, currently using a particular channel, can only switch to one of its k immediate neighboring channels. …"
    احصل على النص الكامل
    احصل على النص الكامل
  10. 630
  11. 631
  12. 632
  13. 633

    Fluid-Structure-Acoustic coupling analysis for external laminar and turbulent fluid flows حسب Tohid, Adibi

    منشور في 2023
    "…The results indicate that the transmission loss is 27% more at the elastic plate’s highest position. By decreasing the length of the elastic plate by 50%, the mean transmission loss is reduced by 9%. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
    article
  14. 634
  15. 635
  16. 636

    Association between Lebanese Mediterranean Diet and Frailty in Community-Dwelling Lebanese Older Adults—A Preliminary Study حسب Daou, Tracy

    منشور في 2022
    "…No significant association was found between LMD adherence and frailty in fully adjusted models (OR = 0.195; 95% CI: 0.033–1.154; p = 0.071 when categorical and OR = 0.856; 95% CI: 0.668–1.097; p = 0.218 when continuous). …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
  17. 637

    Type 2 diabetes epidemic and key risk factors in Qatar: A mathematical modeling analysis حسب Awad, Susanne F.

    منشور في 2022
    "…Obesity prevalence increased from 8.2% to 12.5%, smoking declined from 28.3% to 26.9%, and physical inactivity increased from 23.1% to 26.8%. The proportion of incident T2DM cases attributed to obesity increased from 21.9% to 29.9%, while the contribution of smoking and physical inactivity decreased from 7.1% to 6.0% and from 7.3% to 7.2%, respectively. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
  18. 638

    Long-term performance analysis and power prediction of PV technology in the State of Qatar حسب Touati F.

    منشور في 2017
    "…Results show that due to panel dusting for eight months, the PV output power decreased by 50%. Also, owing to lower ambient temperatures, clearer sky and cleaner panels due to occasional rainfall, the PV panels show higher output power in Winter than in Summer season. …"
    احصل على النص الكامل
    احصل على النص الكامل
  19. 639

    Development of an Air-Cooled Induction Manifold for Diesel Engines in Hot and Humid Climate حسب Elrentisy, Mohamed H.

    منشور في 2022
    "…For the emissions, there was a considerable reduction rate in NOx emissions with about 83% at 20 °C as well as a 50% reduction in hydrocarbon (HC) emissions compared with 45 °C. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
  20. 640

    Selective adsorption of carbon dioxide, methane and nitrogen using resorcinol-formaldehyde-xerogel activated carbon حسب Awadallah, Ahmed

    منشور في 2017
    "…Adsorption/desorption isotherms of CO2, CH4, and N2 gases onto RF-ACX adsorbent were measured gravimetrically by a magnetic suspension microbalance at five different temperatures (20, 30, 40, 50 and 60 °C) in the pressure range of 0–1 MPa. …"
    احصل على النص الكامل
    احصل على النص الكامل