Fig. 8. Regression slope coefficient and sum of squared residuals between predicted and measured lipid contents expressed as functions of drag coefficients (C_D; ranging from 0.09 to 1.20) used in the predictive model of lipid content. The red line represents the sum of squared residuals (SSR) for each C_D value used, while the blue line represents the slope coefficient. The horizontal broken line represents a slope coefficient of 1, and the left-hand vertical broken line represents the corresponding C_D value (0.49). The right-hand vertical broken line represents the C_D value (0.69) that corresponded to the minimum SSR of predicted and measured lipid contents (see also Fig. 9).

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