Table 2.

Ultrasonic field enhancement effects with different thin liquid layer parameters.

Parameter	Value
$f\left(\text{kHz}\right)$	20
$\text{a}\left(\text{m}\right)$	0.015	0.01	0.005
$\text{h}\left(\text{m}\right)$	0.005	0.003	0.001	0.005	0.003	0.001	0.005	0.003	0.001
$\text{a/h}$	3	5	15	2	3.3	10	1	1.6	5
K	1.48	2.48	7.47	0.49	0.82	2.45	0.12	0.2	0.59
Effect	Enhance	Enhance	Enhance	Weaken	Weaken	Enhance	Weaken	Weaken	Weaken