Ortho, ortho-substituted nitrogen-containing bisaryl compounds, processes for their preparation, their use as medicaments, and pharmaceutical preparations including their use as antiarrhythmic active compounds, for example, for the treatment and prophylaxis of atrial arrhythmias, e. A test driver applies an input test signal to the device. The metal reinforcement includes an outer oxidized layer that bonds to the ceramic matrix composite. Application to air-hydrogen cells . The edges of the raised regions act as partition edges for the second layer.