يعرض 21 - 40 نتائج من 7,300 نتيجة بحث عن '(( 50 ppm decrease ) OR ( 50 c decrease ))', وقت الاستعلام: 0.45s تنقيح النتائج
  1. 21

    Fig 11 - حسب B. Ulfhake (6293984)

    منشور في 2022
    الموضوعات:
  2. 22

    Fig 14 - حسب B. Ulfhake (6293984)

    منشور في 2022
    الموضوعات:
  3. 23

    Fig 2 - حسب B. Ulfhake (6293984)

    منشور في 2022
    الموضوعات:
  4. 24
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    S3 File - حسب Abdullah Niaz (16955618)

    منشور في 2023
    "…At higher concentrations some desorption was observed (36% at 50 ppm) but was reduced at lower concentrations (1–3% at < 5 ppm). …"
  7. 27

    S1 File - حسب Abdullah Niaz (16955618)

    منشور في 2023
    "…At higher concentrations some desorption was observed (36% at 50 ppm) but was reduced at lower concentrations (1–3% at < 5 ppm). …"
  8. 28

    Key properties of MCPA. حسب Abdullah Niaz (16955618)

    منشور في 2023
    "…At higher concentrations some desorption was observed (36% at 50 ppm) but was reduced at lower concentrations (1–3% at < 5 ppm). …"
  9. 29

    S2 File - حسب Abdullah Niaz (16955618)

    منشور في 2023
    "…At higher concentrations some desorption was observed (36% at 50 ppm) but was reduced at lower concentrations (1–3% at < 5 ppm). …"
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  14. 34

    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. …"
  15. 35

    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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