Disclosed herein are materials and compositions comprising: an oxidized carbon black having a BET surface area ranging from 50 to 700 m2g, a DBP oil adsorption number ranging from 50 to 200 mL100 g, and a primary particle size ranging from 7 to 30 nm; and a polyetheramine comprising ethylene oxide and propylene oxide monomers, wherein the polyetheramine coats the oxidized carbon black. The drive device comprises first and second elements rotatable relative to each other. In the current concentration, current not less than a predetermined threshold value flows continuously for a predetermined period in one or more phases of the inverter. When the user selects an attribute to be color coded from the attribute list and selects a conversion rule corresponding to the selected attribute, components of the three-dimensional virtual model are displayed with different colors in conformity with the conversion rule selected.