A restraining system for hollow fibers is provided. More specifically, a method suitable for iterative detection and decoding schemes is proposed, which is able to output near optimal bit soft information processing efficiently given input bit soft information. The conductivity type of the thin-film diode may be N-type and the anode electrode of the protection diode may be connected to a line that is connected to either the gate electrode or the first electrode of the thin-film diode. Additionally, the control channel structures provides for more efficient signaling of code channel assignment. The control device may be applied to an isolating switch. into the formation, dissolving nahcolite in the hot water to form a production solution and recovering the production solution.