Oxidation of turbine buckets may cause unexpected and expensive turbine failures. The ISI cancellation equalizer comprises a non-linear mapping circuit, a filter, a delay circuit, and a combiner. In addition, the shaving razor can include a biasing pivoting member producing a progressively increasing return torque on the razor cartridge that forces the cartridge into flat contact with the skin thus improving glide and shaving closeness. If illumination occurs from another source within the recurring window, an operational window for the second illumination source is determined an a new a new operational window within the recurring window established for the capture device. On the upper inner member, outer peripheral downward inclined surfaces are formed, and on the lower inner member, outer peripheral upward inclined surfaces are formed. For example, in addition to forwarding messages from tenant-controlled NMSs to the open access system elements, the open access NMS preferably acts as a caching firewall to ensure that the tenant NMS are permitted privileges to access only those system elements to which they are a properly assigned.