Application of distribution functions to partition curves

The regular Tromp curve is a log-normal probability (K—Kolmogoroff) function; it is, however, also a modified RRS (Rosin-Rammler-Sperling) or GGS (Gates-Gaudin-Schuhmann) function. The exponent m (distribution modulus) is a measure of the slope of the functions, i.e. Tromp curves and can be used instead of the indices Ep or I to characterize the efficiency of the various separating (sorting or classifying or sizing) equipments. The relationship Im ⋍ constant is valid.