A door control system for vehicles has a transmitter and a receiver for detecting an electronic key in a first predetermined area around a vehicle. The hydroxylamine compositions can include hydroxylamine nitrate, hydroxylamine, hydroxylamine sulfate, hydroxyl ammonium salts and mixtures thereof. The power conversion is performed at improved levels of efficiency, and less input power is dissipated as thermal energy. Consequently, nitriding can enhance longevity and controllability of a variable geometry turbine. An information processing apparatus, connected to plural printing systems, can create a job ticket for a second system based on a job ticket and content data for a first system and device function information for the second system.