An electric element includes a pair of electrodes; and a plurality of carbon nanotubes of three-dimensional network structure which are located between the pair of electrodes. Also included is an apparatus comprising at least one component configured to implement a method comprising compiling an external protocol extension message comprising a plurality of TLVs and a header that indicates an external protocol extension, and transmitting the external protocol message. The first and second gain media generate a laser beam. The head impact protection device may include as a module, an airbag carrier, an airbag and a gas generator. A displaying unit displays the found source code portion in a manner distinguishable from other portions of the source code.