To provide beads contributing to increasing the kinds of color-code in making a color-coding by the aid of concentration gradient through elaborating an originality for how to adopt the gradient in two-dimensional and three- dimensional cases in view of the fact that in conventional color-coding, a separation has been made by taking points at intersections respectively parallel to X-axis and Y-axis in the two-dimensional case, while by taking points at intersections respectively parallel to XY-axis, YZ-axis and ZX-axis in the three- dimensional case.
The beads give the following advantage: without taking points at intersections on respective straight lines parallel to each other on the axes, points are laid out so as to be shifted from each other, and an analysis is then made, thus enabling a separation is to be made surely compared to conventional cases, resulting in enabling the number of points to be increased in the case of an analysis comparable in accuracy to conventional cases.
YAMAMOTO KENJI
ITO TOSHIAKI
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