It is important to point out that, during the tests, the type of wear did not change as a function of the variation in sediment concentration, since the concentrations were not higher than 18% (Cozza, 2011), justifying the coherence of the logarithmic curve
with [R.sup.2] close 1.
Other shapes are sometimes used such as the combination of multiple arcs or the combination of a logarithmic curve
and a circular arc, but all these shapes are also very complex to set-up and optimize.
The empirical cdf was fitted mostly by a logarithmic curve
and the estimated return levels were fitted by a hyperbolic function (4).
In other words, the relative radius of the roller needs to be shorter than the relative radii of the output and input discs at any point on the Logarithmic curve
Dimming can be set on a linear or logarithmic curve
. With a built-in relay, devices down the line can be turned off completely, giving complete lighting control and reducing energy costs.