The embodiments described herein include an object detection system and method for identifying objects within an area. A user who joins the network transmits an execute-on-leave script to one or several users. An air-fuel controller is provided for changing the air-fuel ratio of the mixture, which is to be supplied to the engine, to a condition leaner or richer than the stoichiometric air-fuel ratio. The energy-curable coating is cured by exposing it to an electron beam or other appropriate energy. Corresponding method and system for displaying an energy variation. The second VAD component determines that the second signal corresponds to voiced speech when a ratio of a second parameter corresponding to the second signal and a first parameter corresponding to the first signal exceeds a second threshold.