A laminate material for an elastic diaper closure consists of an elastic carrier film that has a preferred elongation direction, and at least one cover layer that is laminated on the carrier film. The preferred wheel suspension includes upper and lower rocker arms pivotably attached to a bicycle frame, rear shockstays pivotably attached to the upper and lower rocker arms, and a shock absorbing element. The impairment model includes first and second model terms corresponding to the first and second antennas, respectively, but in several embodiments does not include a cross-antenna interference term. These planar particles may be microflakes that have a high aspect ratio. The system preferably has optional interchangeable holders for various articles-under-test as well as an optional interchangeable holder for various reference-standard sample-specimens. The transmission has an input shaft, first and second intermediate shafts disposed in parallel with the input shaft, and reverse gearing.