A composition comprising: at least one porous carbon monolith, such as a carbon aerogel, comprising internal pores, and at least one nanomaterial, such as carbon nanotubes, disposed uniformly throughout the internal pores. The cot frame includes a pair of side extension arms provided between the leading end and the trailing end, each of the side extension arms being adapted to slidably extend outwardly from a stowed position adjacent the cot frame to an extended position substantially perpendicular to the cot frame. Ground engaging rollers are mounted on the support legs and are braked against rotation when the ramp is in a working position. At least one terminal block is provided where each terminal block is connected to the primary winding taps or the plurality of secondary winding taps. The first and second voltage-contrast images are then compared to detect electrically-active defects. The master trace bits are further made available to system debuggers on pins external to the system or via a port accessible to software.