A method, apparatus, and article of manufacture of a computer-implemented parallel database loading system. The protection element has thickness in the direction perpendicular to the circuit board and it is shaped to leave the electrical components unscreened in the direction perpendicular to the circuit board. The method further comprises determining a start point within the geographic area, determining an end point within the geographic area, and dynamically determining at least a first route between the start point and the end point, the route containing at least one arc, wherein the first route is determined by using a characteristic of the arc between the start point and the end point. The apparatus includes a transducer producing a capacitance in response to the acceleration, a sensing system producing a first signal from the capacitance representing the acceleration, and a compensation system coupled between the sensing system and transducer.