Modafinil polymorphic forms of modafinil racemate, methods of preparation thereof, pharmaceutical compositions and methods of therapeutic treatment involving modafinil polymorphic forms. Test data for the performance kit is preloaded into an installation image that is distributed with a vendor’s product. The semiconductor integrated circuit chip cab be obtained, which can maintain an impedance of a power distribution network below a target impedance in a wide frequency range, particularly at a high frequency, by minimizing an inductance between a decoupling capacitor and a semiconductor integrated circuit chip. Also disclosed is a method of molding a molded article with the knurled workpiece to impart the inverse of the knurl pattern onto the molded article, such a molded article, a method of forming a structured abrasive article with the molded article, and such an abrasive article. The system includes a motor and gearbox including a system of clutches and brakes which allow for controlling and limiting the movement of compressing mechanisms operating on the chest and the abdomen of a patient.