The invention relates to the assembly of a drive shaft with the cutting head hub of a submersible granulator. The high performance powdered metal mixture includes powdered tungsten and powdered metal binder. The groups of symbols are processed by a channel estimation subsystem to determine channel characteristics. The wrapper object can later be invalidated by the extensibility point when the extensibility point has completed its operation on the message. A grammar-based Minimum Description Length compression algorithm is used to determine a masquerade based on a distance from a threshold in a model of an estimated algorithmic minimum sufficient statistic. The first end segment and second end segment each include at least one convex segment proximal the intersection of the first end segment with the transverse segment.