Supports for Fischer-Tropsch catalysts are formed by forming a particulate material from titania, alumina and optionally silica. The apparatus includes an end fitting piece and a medial fitting piece. Hydrogen resulting from the reactions may be used to make electricity in a fuel cell. In particular, a zero Doppler slow channel is used to derive predicted surface clutter residue information, and a near zero Doppler slow channel is used to derive additional false alarm control attenuation information. The apparatus comprises a DCDC converter, operated in a quasi-resonant mode, comprising a transformer, a primary switch, coupled to a primary winding of the transformer, for controlling current flow through the primary winding, and a varactor, coupled to the transformer, for accelerating a downswing in a voltage across the primary switch.