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مکانیک::
میکرو حباب
Electrochemical valves are actuated using gas microbubbles generated by the electrolysis of
The valve shown in Figure 6.20(d) utilises as actuation fluid the same fluid, which is to be controlled [33], The pressure p generated by the microbubble can be described as a function of surface tension cr and the radius of curvature of the bubble R:
The microbubble can be generated by means of electrolysis of water or by heating liquid
Acoustic streaming can also be focused using the cavity effect, Marmoltanl and Hilgenfeldt [ 16] used a 15- JTL microbubble to attract cells.
The microbubble is driven near its own resonance with a frequency of 180 kHz.
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