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. 2007 Jul 19;1(3):034103. doi: 10.1063/1.2766761

Figure 2.

Figure 2

Characteristic transmission electron micrographs of (a) micrometer and (b) nanometer sized droplet residues for an applied voltage to flow rate of ∼10∕11 kV and ∼10−9 m3 s−1 for a ground electrode distance of ∼15 mm from the exit of the needle, respectively.