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Fig. 4.
Fig. 4. Discharge patterns in different pulse width and frequency with an input voltage of 3.0 kV at a pressure of 0.3 atm [Frequency: (a) 10 kHz, (b) 20 kHz, (c) 30 kHz, and (d) 40 kHz].
Applied Science and Convergence Technology 2021;30:141~145
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