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The length of the power strokes. The length of the power stroke was calculated by summing up the distances, lV, spanned in tAT/tl ~ 137 consecutive cycles of the program. Upper part of the figure: P/P0 = 0.421; aL = 0.5 m.s-2; F1 = 228.43 pN; k = 2.26 10-4 s. Lower part of the figure: P/P0 = 0.421; aL = 9.8 m.s-2; F1 = 2030.66 pN; k = 2.467 10-5s.
