An inductor device is described. The process includes the steps of introducing magnetite to a quantity of water containing heavy metal. Rails and projectile are represented by a FEM model, while the ambient air surrounding the rail-gun is represented by a BEM mesh for simulating the electromagnetic fields. Sensors of the present invention have a non-adhesive laminated layer. A solid fuel pulverizer and exhauster system of the present invention acting in cooperative association with a fuel-fired steam generating power plant includes an exhauster fan transmission assembly 50, 52 operable to translate the rotation of the drive shaft 54 of the exhauster fan drive motor 44 through ninety degrees to thereby effect rotation of the fan by the exhauster fan drive motor 44. The adaptive packet header is used for both signaling and payload transfer.