A composition containing cationic pigment particles includes titanium dioxide particles to which are bound a first water-soluble cationic polymer and cationic polymer latex particles. A network layer usually includes connection management, mobility management and radio resources management sublayers. Noise characteristics are retrieved using the circuit classification and circuit parameters to calculate a noise response. The adjusting ring and the ratchet wheel are sleeved rotatably on the rotary seat. The search window is a square box in some embodiments and a circle in other embodiments.