A filter for use in a gas generator of a safety arrangement in vehicles, has several layers of a woven metal fabric consisting of metal wires which are woven together. In one embodiment, an apparatus designed to perform directed rounding includes an instruction decoder configured to decode an instruction, which includes a rounding control information to calculate a result boundary. At east one additional member is formed of a conductive member having a rod shape, the additional member having both ends connected to one of the rod members, the additional member being disposed outside a first imaging region formed by the end members and the rod members, and forming a second imaging region. The method of utilizing the shroud involves securing the shroud to the prosthetic implant. The space between the PLDD regions is preferably larger that the space between the NLDD regions because of the wider PMOS spacers.