Abstract: A sound absorber unit and a vehicle wheel having a sound absorber device are provided. The sound absorber devices includes at least one sound absorber unit or at least one sound absorber assembly which is composed of a plurality of sound absorber units. The sound absorber unit is constructed into a box body in a hexahedron shape and forms a three-layer Helmholtz resonance sound absorption structure with double holes and single holes combined, and meanwhile, the sound absorber unit or the sound absorber assembly forms a structural resonance sound absorber. The double-absorption wheel air chamber sound resonance function organically combining Helmholtz resonance sound absorption and structural resonance sound absorption can be realized.

Abstract: The disclosure discloses a method for manufacturing special purpose vehicle wheels by using 7000 series aluminum alloys, comprising the following steps: step 1, smelting 7000 series aluminum alloys in a smelting furnace; step 2, making the solution obtained in step 1 into an aluminum alloy ingot blank through a spraying and forming process; step 3, extruding the aluminum alloy ingot blank of step 2 to obtain an extrusion bar; step 4, sawing the extrusion bar into blanks and heating them; step 5, rolling the blank into a cake; step 6, putting the cake into a press for forging and forming; step 7, spinning and forming the wheel rim. The wheel manufactured by the method for manufacturing special vehicle wheels with 7000 series aluminum alloys in the present disclosure has high and stable conductivity, qualified impact test and good bending and radial fatigue performance.

Abstract: In one embodiment, a method includes receiving an ordered sequence of biometric inputs from a user via a biometric sensor, determining if each of the ordered sequence matches a corresponding entry stored in a table that includes a stored ordered sequence of biometric inputs corresponding to a password pattern of the user, and if so, enabling the user to access the processing system, otherwise preventing the user from accessing the processing system. Other embodiments are described and claimed.

Abstract: In one embodiment, a method includes receiving an ordered sequence of biometric inputs from a user via a biometric sensor, determining if each of the ordered sequence matches a corresponding entry stored in a table that includes a stored ordered sequence of biometric inputs corresponding to a password pattern of the user, and if so, enabling the user to access the processing system, otherwise preventing the user from accessing the processing system. Other embodiments are described and claimed.