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Schematic diagram of the experimental setup.
(a) Photograph of DBD in the ceramic discharge chamber between the sidewalls with argon used as working gas and (b) time variation over several cycles of the applied voltage and discharge current with the discharge power of only about 13 mW.
Voltage-current (V-I) characteristics of the DC argon glow discharge under different gas flowrates with and without the enhancement of DBD.
Images of the DBDELPJ, (a) front view and (b) side view; (c) shows the spatial distribution of gas temperature.
Relative optical emission spectra of the plasma jet (a) with and (b) without of the enhancement of DBD.
Emission profiles of the radical OH molecular line at 309.7 nm, the excited molecular line at 337.1 nm and the excited argon atomic line at 763.7 nm along (a) x axis and (b) y axis with the sustaining voltage of 0.27 kV, the current of 22 mA, and the flow of 10 L/min; (c) shows the spatial-resolved optical emission spectra of the laminar plasma along the height (x = 0 mm) with the sustaining voltage of 1.15 kV, the current of 35 mA, and the flow of 10 L/min.
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