This invention provides a system and method that improves the sensitivity and localization capabilities of Magnetic Particle Imaging by using combinations of time-varying and static magnetic fields. The arrangement includes an articulated lever combination; a servo element associated with the articulated lever combination; preferably two rotary distribution blowers each having a material inlet opening and a rotor circumference and being connected to the articulated lever combination. During each of a plurality of capture intervals, a set of points corresponding to the object is detected when the object is disposed adjacent to the interactive display surface. The key escrow service also revokes the keys from deselected secure service providers. When the top-up confirmation is not received, the server requests top-up confirmation from the mobile device. At least one guide wheel pivotably mounted to a shaft having at least one shaft arms, wherein the at least one guide wheel and the shaft arms are configured to slide along the entire length of the at least one movable rail while adjusting the height of the at least one shelf in a vertical direction.