Provided herein is a process of fractionating ferroelectric, preferably vinylidene fluoride polymers using a solvent having at least one polarizable functional group, and a precipitant. The solution includes at least actuators fixed above the guide rails for moving at least the parts of the alignment plumb lines above the guide rails for positioning the alignment plumb lines. 01 to 3 percent by weight, based on the weight of the catalyst component. This chaotic system is driven into synchrony and allowed to generate a key bitstream, which is identical to the other bitstream because the chaotic systems have been synchronized. The content display unit creates the content list information based on the storage state of contents in a cache for delivering a content to the user terminal.