A fuel cell system, control method and current measuring device for a power unit are disclosed. Each log file record records the execution of a statement and includes a transaction identifier. Such binding domains include a peptide having 4 framework regions and 3 complementarity-determining regions, or fragment thereof, wherein the binding domains bind or retain a carrier onto a plant. By removing the sidewall spacers, the aspect ratio of the gap between adjacent closely spaced gate electrodes is substantially reduced, thereby preventing voids during the subsequent deposition of an ILD layer. The interface conductors may be smoothly rounded, include teeth, spherical or hemispherical include multiple rounded nodules.