A cryptographic method and apparatus for anonymously signing a message. The retaining arrangement overrideably prevents the shaft member from being axially removed from the hub axle when in a predetermined position within the through bore of the hub axle. The dissolved oxygen is monitored, the pH level is monitored, the flow is monitored, and the temperate of the organic waste liquids and solids in the collection vessel are all monitored and data is generated therefrom. The coating has a magnetic permeability suitable to and is provided in an amount effective to reduce MRI image distortion caused by the component of the circuit board. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times relative to a non-equal gain composite beamforming technique.