The invention relates to an oxide material of general formula A2\u2212x\u2212yA\u2032XA\u2033yM1\u2212z M\u2032Z04+\u03b4, wherein A and A\u2032 are independently a metal cation of a group formed by lanthanides andor alkalis andor alkaline earths, A\u2033 is a cationic gap, i. The multi-station boxing center has a base arranged to be positioned on a generally horizontal support surface and a canted frame having a means for supporting a heavy bag and a means for supporting a speedbag. A measuring step measures a rotation speed of an impeller of the coolant water pump for a period in which the predefined output is applied to the coolant water pump. The one or more delta attributes are then stored. The shaft is adapted to be coupled to a position sensor such that rotation of the shaft causes the position sensor to produce electrical throttle control signals that represent the movement of the controller within its operating range.