A mobile terminal includes a power managing unit coupled to a control unit, and a switch unit coupled to the control unit and the power managing unit. The network visualization system may include a monitoring server that discovers devices in a client network, and a client application including a discovery controller and a rendering unit. min or more in a temperature range which is equal to or higher than a temperature at which the volatile component is volatilized. Vehicles equipped with the apparatus, and methods of reducing vehicular air drag using the apparatus, are also disclosed. These points may include items such as preparation points, warning points, instruction points and confirmation points.