An axle assembly with an axle housing with a pair of bearing journals, a differential assembly disposed between the bearing journals, a pair of differential bearings and a pair of hollow adjusters that can be threaded into the bearing journals to preload the differential bearings and control gear lash between a pinion and a ring gear. The integrated circuit structure includes a dielectric layer, a conductive structure, a low-k dielectric layer and a plug. The vertical section has bolts extending through it for attachment to the fender. The flux concentrator includes anisotropy aligned with an appropriate conductor. Discriminative adjustments are made to model parameters of at least one acoustic model based on a joint discriminative criterion over multiple complementary acoustic models to lower recognition word error rate in the system.