radius ratio

radius ratio

[′rād·ē·əs ‚rā·shō]
(physical chemistry)
The ratio of the radius of a cation to the radius of an ion; relative ionic radii are pertinent to crystal lattice structure, particularly the determination of coordination number.
References in periodicals archive ?
When a planetary gear set is in star mode or its speed ratio is equal to zero, radius ratio [alpha] is equal to 1.
the number of balls (z), the curvature sum (R), the equivalent elastic modulus (E), the effective radius ratio ([gamma]), the friction force, and the load.
Grsvenor, T & Scott, R, 'Role of the axial length/ corneal radius ratio in determining the refractive state of the eye', Optometry and vision science, vol.
Figures 7 to 10 show that the dimensionless temperature ([GRAMMA]*), in general, increases with the angular distance from the smallest gap, [beta], and the power-law index, n, but decreases with the dimensionless radius ratio, [phi].
of test models having the wall thickness to cylinder radius ratio ([R.
Figure 3 indicates that the thickness of laminar flow layer has direct proportionality with both eccentricity and radius ratio.
Six clear web hole distances representing a clear distance to web hole radius ratio of 1, 2, 3, 4, 6, and 8 were tested.
The radius ratio is the ratio determined by maximum radius/minimum radius.
This study presents accurate and suitable general expressions for all coupled sliced coaxial cables with a wide range of cut depths and an outer to inner conductor radius ratio between 1.
Meanwhile, the radius ratio was close to unity, which demonstrates that the bubble was always axisymmetric.