A subject for the invention is to provide a process for ceramic bead production in which ceramic beads with smooth surfaces are obtained by a simpler method without using a complicated process involving, for example, a DC plasmaradio-frequency plasma combination or a two-stage radio-frequency plasma. The drain is configured to be entirely covered by the scleral flap and totally inserted in the intrascleral space. The first and second wheel pairs are rotatably supported by self-lubricated bearings. The decorative base of the device can either be a miniature ladder or stairs coupled with a display board showing a message and or picture. The processing can be a calculation which calculates, for example, texture, color andor brightness of the edge portions, and automatically calculates video information to match the texture, brightness or color. Wood pulping parameters may thus be determined on the basis of the quantitative presence of the chemical species to assist in process andor quality control of the wood pulping operation.