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Official Journal of the Japan Wood Research Society

Fig. 4 | Journal of Wood Science

Fig. 4

From: Examination of Cinnamomum camphora interlocked grain adopting X-ray computed tomography combined with particle image velocimetry

Fig. 4

Radial variation of the grain angle (δ) measured using PIV and 2D-FFT methods with a positive value indicating right-handed spirals grain and a negative value left-handed spirals grain as seen from the bark side. A dashed blue line represents the gray level profile along the radial direction with higher intensity correlating to higher density. The peaks represent the position of latewood that delineates annual rings

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