A method for detecting a collector device in an indoor area associated with imaging devices covering the area includes a plurality of collector devices emitting markers to the imaging devices coupled to a server. The process includes separating the hydrocarbon feedstream into two separate streams, a lighter hydrocarbon stream and a heavier hydrocarbon stream, and processing each of the streams separately. The maximum power andor the maximum torque of the internal combustion engine areis substantially larger than the power or torque that can be transmitted by the transmission. The present invention is useful, inter alia, as a prophylactic andor therapeutic treatment for disease conditions such as, for example, infection by parasites and in particular infection by Plasmodium species. The wet-shaving razor attachment is removably connected to the trimmer via a releasable locking mechanism. A movable member is received in the retainer and has pegs extending through the retainer to be engageable and depressible by the lower end of the container when the container is mounted to the container retainer.