A method of producing a prepolymerized catalyst for olefin polymerization comprising a fine powder removal step of removing fine particles from olefin-prepolymerized catalyst particles for olefin polymerization. In a programming mode of the chip, external programming voltages are provided for programming the off-system programmable nonvolatile memory, and in an operation mode of the chip, the pumping circuit produces internal programming voltages for the on-system programmable nonvolatile memory for programming the on-system programmable nonvolatile memory. Because shorter slot cycles are utilized for remote units operating in dispatch mode, the time it takes to make a dispatch call is greatly reduced. The second member has walls and a protrusion having sides extending from the walls to an end of the protrusion. In preferred embodiments, the toxic protein is a ribonuclease that has been modified to make it toxic to target cells and that can be conjugated to a target cell-specific delivery vector, such as an antibody, for delivery to pathogenic cells. Furthermore, due to the barcode serial number is sequential and the gaps between the barcodes are the same, the self-propelled vehicle can calculate its velocity, distance of travel and a distance to a target location according to the barcode serial numbers.