A single-stage AC to DC conversion device includes an energy storage unit, a magnetic unit, and a switch unit. The method for communicating data is adapted for a base station, and the method includes grouping a data for transmission in a plurality of data subsets, in which the data for transmission includes a plurality of information bits, encoding the data subsets; modulating the data subsets, and transmitting the data subsets to a receiving device. The epitaxial layer leaves a gap between adjacent columns of the patterned mandrel, and a dielectric material may be deposited in the gap between the adjacent columns of the patterned mandrel. Preferably, the quaternary ammonium salt compounds are applied to paper substrates in an amount of about 1000 ppm. The local clock buffer circuit is capable of producing a secondary timing signal based on the primary timing signal. The stabilized platform also includes a supported structure, rotatably mounted relative to the supporting structure around a secondary rotation axis substantially perpendicular to the main rotation axis.