Showing 121 - 140 results of 29,358 for search '(( 50 ((((ppm decrease) OR (nn decrease))) OR (a decrease)) ) OR ( a web decrease ))', query time: 0.76s Refine Results
  1. 121
  2. 122
  3. 123
  4. 124
  5. 125
  6. 126
  7. 127
  8. 128
  9. 129

    Pulse Ultrasound-Based Response Enhancement of a MOX Gas Sensor by Yumin Yang (5737235)

    Published 2024
    “…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. …”
  10. 130

    Pulse Ultrasound-Based Response Enhancement of a MOX Gas Sensor by Yumin Yang (5737235)

    Published 2024
    “…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. …”
  11. 131
  12. 132
  13. 133
  14. 134
  15. 135
  16. 136
  17. 137
  18. 138
  19. 139
  20. 140