A radar system having orthogonal antenna apertures is disclosed. A method for checking the secured object is by means of such a device. The network information may be classified as static or dynamic. A control circuit compares the speed of the engine to a stored engine speed and modifies, based upon the position of the shift linkage when the speed of the engine reaches the stored engine speed, a neutral state threshold that determines when the control circuit ceases reducing the speed of the engine to facilitate a shift change. The miniature size rollers are located so close to each other that both axis rollers can be rotated simultaneously by a touch a finger pad of a distal phalanx of one finger to simultaneously change positional information in said first and second axes. The mixture contains compounds having the following general formula : where R represents a hydrogen atom or a C1 to C8 alkyl group, a C4 to C10 cycloalkyl group or a C6 to C12 aromatic group and n is a whole number greater than or equal to one so as to give a functionality of 2 to 6.