The present invention relates to a mobile communication system, and more particularly, to a repeater and a ranging method using the repeater. The engine has a crankcase which is formed, at least in part, by a crankcase sump. The light emitting device can comprise an array of LEDs and an array of lenses, in which at least one lens is associated with each member of the LED array and wherein the area of a cross-section of each lens projected onto the light emitting surface of its associated LED is substantially equal to or less than the area of the LED’s light emitting surface. A time-based intelligence system provides robust storage, access, and processing of information on a mobile device. The shelf member has a horizontal support surface for holding a plurality of shower accessories. The binder composition may also incorporate a cure catalyst or accelerant such as sodium hypophosphite.