A utility winch having a single planet gear assembly that commonly engages adjacent ring gears, one ring gear fixed and the other rotatable. In one implementation, such a binary adder includes a network of carry-processing cells for producing kill, generate, and propagate signals and carry-skip cells for bypassing certain bit positions with dual-wire differential signal paths to provide high-speed processing of adding operations. The low frequency inductor is being disposed on a dielectric board configured to be coupled to the circuit board. In addition, when the transmitting end does know the channel state, an antenna having the best channel state is selected for each group, and accordingly, performance degradation due to feedback delay of channel state information and inter-antenna interference due to an increase of mobility of the terminal can be prevented. Methods of production of the composition and salts of compounds of formula I, as well as related analogs and novel reagents and intermediates for the production thereof, are also described. The heat conductive composite substrate comprises a heat dissipation substrate and a metal diamond composite layer physically disposed on the heat dissipation substrate for passing heat energy to the heat dissipation substrate.