A method is described herein for reducing the number of feedback bits needed to send channel state information over a feedback channel from a receiving unit to a transmitter unit in a wireless communication system. The method includes filtering the scanned image, binarizing the filtered image, detecting print area, print contrast, and print shape of the binarized image, and separating the print image into individual print images based on the print area, contrast, and shape. The position of the element is controlled in accordance with the measured position, e. The compressed file comprises a plurality of subdivisions. The addition of some materials can also result in changes in the density of the hydrate product, which can be useful for optimizing the separation of hydrate from unreacted liquid andor rejected gas. The layers include electrodes of which at least one electrode is transparent and one acts as an anode and one as a cathode, and at least one organic electroluminescent layer that is arranged between the electrodes.