There is described a novel process for preparing interpolymers comprising ethylene, at least one monomer unit selected from heteroatom substituted olefin monomer units derived from a compound of the formula XV . The communication module is configured to execute close proximity wireless transfer. The belt skiver also includes a drive mechanism shifting the cutting mechanism relative to the belt end laterally along the belt end, and whereby the upper and lower blades contemporaneously sever both the upper surface layer and lower surface layer from the belt end. By changing the shape of the N-type layer, an increase in the area of the interface between the P-type region and N-type layer can be attained.