يعرض 1 - 20 نتائج من 18,831 نتيجة بحث عن '(((( 50 ppm decrease ) OR ((( 50 nn decrease ) OR ( 100 ng decrease ))))) OR ( 50 _ decrease ))', وقت الاستعلام: 1.29s تنقيح النتائج
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    Global Land Use Change Impacts on Soil Nitrogen Availability and Environmental Losses حسب Jing Wang (6206297)

    منشور في 2025
    "…As a central part of the global N cycle, soil N supply from net N mineralization (NNM) and net nitrification (NN) contributes to over 50% of crop N uptake. However, how global land use changes impact soil N supply and potential N loss remains elusive. …"
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    Pulse Ultrasound-Based Response Enhancement of a MOX Gas Sensor حسب Yumin Yang (5737235)

    منشور في 2024
    "…Comparing the steady responses of five target gases under the pulse and continuous ultrasound, respectively, it is found that the pulse ultrasound causes a better catalysis effect, and response enhancement (RE) by the pulse ultrasound with an optimal pulse width depends on the ultrasonic strength as well as the species and concentration of the target gas. For 2 ppm methanol, the RE by the pulse ultrasound is 50%, relative to the continuous ultrasound, when the pulse width, duty ratio, and working frequency are 0.4 ms, 50%, and 110.1 kHz, respectively. …"
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    Pulse Ultrasound-Based Response Enhancement of a MOX Gas Sensor حسب Yumin Yang (5737235)

    منشور في 2024
    "…Comparing the steady responses of five target gases under the pulse and continuous ultrasound, respectively, it is found that the pulse ultrasound causes a better catalysis effect, and response enhancement (RE) by the pulse ultrasound with an optimal pulse width depends on the ultrasonic strength as well as the species and concentration of the target gas. For 2 ppm methanol, the RE by the pulse ultrasound is 50%, relative to the continuous ultrasound, when the pulse width, duty ratio, and working frequency are 0.4 ms, 50%, and 110.1 kHz, respectively. …"
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    Scenario (6): Parameter variation (50% decrease)—With 5 N.m load applied at t = 0.3s. حسب Djaloul Karboua (16510091)

    منشور في 2023
    "…<p>Scenario (6): Parameter variation (50% decrease)—With 5 N.m load applied at t = 0.3s.…"
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