A cleaning sheet for removing particulate matter from a surface comprises a substrate comprising first fibers and second fibers having different denier to improve caliper of the cleaning sheet. The mechanism comprises a drive cage mounting bracket, a hinge, and appropriately adapted chassis, so that the mounting bracket is hingeably connected to the chassis to swing open for access and to swing closed for operation. The aforementioned \u201cHatNoodle\u201d device is constructed from a resilient material and includes a bottom surface and an essentially convex top surface. 1 hept-5-en-2,3-dicarboximide as active ingredient. Inside the bearing seat, a number of steel balls are arranged along the circumference of the bearing seat. The methods and systems include generating a map of motor bias and creating MEMS gyros based on the map of motor bias to achieve a higher yield of usable MEMS gyros per wafer.