Showing 81 - 100 results of 16,735 for search '(( 50 ppm decrease ) OR ((( 50 ng decrease ) OR ( 50 ((a decrease) OR (mean decrease)) ))))', query time: 0.59s Refine Results
  1. 81
  2. 82
  3. 83
  4. 84
  5. 85
  6. 86
  7. 87
  8. 88
  9. 89
  10. 90
  11. 91

    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. …”
  12. 92

    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. …”
  13. 93
  14. 94

    Means for STEM competence for pre- and post-test. by Esther Kim (2996622)

    Published 2024
    “…After the Challenge, participants increased in awareness of global issues, and engagement with others, but also showed a small but significant decrease in respect for people from other cultural backgrounds. …”
  15. 95
  16. 96
  17. 97
  18. 98
  19. 99
  20. 100