Table 7 RSM factor levels.

From: Multi objective optimization and experimental investigation of the stirring performance of a novel micro actuator

Level

\(x_{1}\) (mm\(^{2}\))

\(x_{2}\) (Å)

\(x_{3}\) (mm)

\(x_{4}\) (mm)

-2

4.056

61

0.30

5.25

-1

4.646

63

0.35

6.00

0

5.236

65

0.40

6.75

1

5.826

67

0.45

7.50

2

6.417

69

0.50

8.25

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