A process for preparing a metal oxide having groups of the general formula I\u2014O1+n\u2014SiR12\u2212n\u2014CH2\u2014Y\u2003\u2003which involves reacting a solid having OH groups on the surface with silanes of the general formula IIRO1+n\u2014SiR12\u2212n\u2014CH2\u2014Y\u2003\u2003whereY is a functional group \u2014NRx2, \u2014OCC\u2550CH2, -halo, or \u2014NCO. The rear structure further has side rear members having a hat-shaped cross-section and having a kick-up portion that is upwardly inclined. The extended bandwidth system of the invention provides for additional copies of a spectrum of a 2 Mbaud training signal for better accuracy in decoding transmitted data by a receiver. The leg supports are powered by a plurality of actuators adapted to apply torques to the leg supports in response to movement of the user’s legs. A first pixel electrode overlaps the trench. Additionally, the parameters may be stored.