Embodiments for adjusting fuel injection are provided. The system designates the selected entities, elements, and sub-elements originating endpoints for the desired relationship. The second flow having the first blood cellular component is then differentially removed from the first flow having the second blood cellular component. The lock may comprise a tooth and slot configuration, wherein the tooth is in compressive contact with a spring which compression continuously exerts force on the tooth and causes the end of the tooth to engage to the cam slot on the barrel, thereby locking the barrel inside the receptacle. Information concerning extent of an inputoutput processing request issued by a host processor is stored in a control memory incorporated in a control unit for allowing the control unit to make decision as to overlap of the extents of the inputoutput processings to thereby effectuate exclusive control on an extent-by-extent basis.