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Roundness is the measure of how closely the shape of an object approaches that of a mathematically perfect circle. Roundness applies in two dimensions , such as the cross sectional circles along a cylindrical object such as a shaft or a cylindrical roller for a bearing .
Roundness is an important indicator of the genetic affiliation of a clastic rock. The degree of roundness points to the range and mode of transport of clastic material, and can also serve as a search criterion in mineral exploration, especially for placer deposits. Alluvial debris in major rivers tend to exhibit a high degree of roundness ...
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.
However, there has been disagreement on the required size. Early speculations were based on the small moons of the giant planets, which attain roundness around a threshold of 200 km radius. [49] However, these moons are at higher temperatures than TNOs and are icier than TNOs are likely to be.
While body mass index (BMI) has long been a go-to measure of a person's health, used by doctors and health insurers alike, a new approach is taking hold. Body roundness index, or BRI, is gaining ...
Let be a metric space with distance function .Let be a set of indices and let () be a tuple (indexed collection) of nonempty subsets (the sites) in the space .The Voronoi cell, or Voronoi region, , associated with the site is the set of all points in whose distance to is not greater than their distance to the other sites , where is any index different from .
The Body Roundness Index is a novel body composition measurement that is touted as being a more accurate alternative to Body Mass Index. In a large retrospective study of 33,000 US adults ...
In their crude model, the moderate-stable group had a 61% increased risk for cardiovascular disease compared to the low-stable group, and the high-stable group had a 163% increased risk.