A sheet metal bending brake having a frame with a sheet metal support surface. The varactor includes a substrate, a lower bias conductor partially overlaying the substrate, a first signal conductor partially overlaying the substrate, a dielectric layer at least partially overlaying the first signal conductor, a support structure coupled to the substrate, and a flexible structure coupled to the support structure. The dynamic signals are then converted to data signals having a voltage based on the frequency of the dynamic signals. More specifically, it has been found that the presence of nanosized metal or metal alloy particles andor a cyclodextrin material in a fiber material, preferably a synthetic polymer material and more preferably a synthetic thermoplastic polymer fiber material leads to fiber materials or nonwovens having odor-controlling properties. If the deformable membrane is not only used for button-related functions, but also for forming an ejection section for an emergency key or as a rattle protection for the emergency key, a multifunctional switch housing can thus be created simply. This separation method provides for removal of a contaminant, such as R11, from a hydrochlorofluoroolefin, such as 1232zd, which are not separable by conventional distillation methods.