Some embodiments provide a method of designing a configurable integrated circuit with several configurable circuits. A resilient element, such as a spring-fluid combination, a plurality of interconnected disks, or a Belleville spring, provides axial shock absorption. Some sorbents have a melting point such that the sorbent can be liquid for good dispersal in heated sludge, and then can be solid when the sludge has cooled, whereby the sorbent can be removed e. In the case where the reliability of the communication line is high, on the other hand, a cooperation protocol realization means requests an agent on another node to process the uncertain knowledge. The end portions have flat bottom surfaces. Then, a magnetoresistive effective film is formed on the bottom insulating layer, and a magnetic biasing layer is formed so as to be contacted with both side surfaces of the magnetoresistive effective film which are parallel to the ABS thereof.