A fastening spring that includes a tolerance zone and a restraint zone. The granulated polymer DRA may then be ground to form a particulate polymer DRA having an average particle size of less than about 1 mm. The damper structure comprises a fixed portion on the peripheral module; a supporting portion attached to a surface of the display panel; and a middle portion connected to and between the fixed portion and the supporting portion. The combination of probability distribution functions represents a measure of circuit performance. A virtual storage space is defined and established with a defined correspondence to the address space of the storage network. Displacement devices for the cuvette fixture which allow the cuvette to be continuously positioned are also mounted on the base plate.