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Roundness is dominated by the shape's gross features rather than the definition of its edges and corners, or the surface roughness of a manufactured object. A smooth ellipse can have low roundness, if its eccentricity is large. Regular polygons increase their roundness with increasing numbers of sides, even though they are still sharp-edged.
Body roundness index (BRI) is a calculated geometric index used to quantify an aspect of a person's individual body shape. Based on the principle of body eccentricity, it provides a rapid visual and anthropometric tool for health evaluation. [1] Introduced in 2013, the BRI calculation can be used to estimate total and visceral body fat.
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Defined by Wadell in 1935, [1] the sphericity, , of an object is the ratio of the surface area of a sphere with the same volume to the object's surface area: = where is volume of the object and is the surface area.
Circular definition; Circular economy; Circular reasoning, also known as circular logic Begging the question; Circularity of an object or roundness; A circularity ratio as a compactness measure of a shape; An assumption of ANOVAs, with repeated-measures, often called "sphericity"
Meanwhile, research is ongoing about the relationship between body roundness index and health. The results of a recent study suggest that higher body roundness index trajectories may increase the ...
The ripples formed by dropping a small object into still water naturally form an expanding system of concentric circles. [9] Evenly spaced circles on the targets used in target archery [10] or similar sports provide another familiar example of concentric circles.
The Interpersonal Circumplex is a taxonomy of interpersonal personality traits and behaviours. The circumplex consists of orthogonal dimensions and concentric circles indicating the level of intensity