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Operating ranges used to obtain different spraying modes (a) PCL : DMAC 2∶98 (wt%), (b) PCL : DMAC 5∶95 (wt%), (c) PCL : DMAC 10∶90 (wt%). (d) Comparison of the cone-jet mode region of different solutions. (d) Triangles, PCL 10 wt%; circles, PCL 5 wt%; diamonds, PCL 2 wt%.
