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. 2015 Jul 30;5:12572. doi: 10.1038/srep12572

Table 1. Parameters to calculate the resonant frequencies of the bubbles.

Parameters Physical meaning Values
σ Surface tension of 1-octanol63 0.0265 N/m
ρ1 Density of water 1000 kg/m3
l1 Length of water in cavity 80 μm
ρ2 Density of 1-octanol 824 kg/m3
l2 Length of 1-octanol in cavity 50 μm
a Width of cavity 60 μm
b Depth of cavity 55 μm