Abstract: A routing system for finding a route which satisfies predetermined limiting conditions in a space of an object space with an aid of a computer, includes a first processor for dividing at least the object area into a plurality of areas and extracting a divided area or divided areas which satisfy the predetermined limiting conditions from the plurality of divided areas, and a second processor for further dividing the divided area or divided areas extracted by the first processor into a plurality of subdivided areas and extracting a subdivided area or subdivided areas which satisfy the predetermined limiting conditions from the plurality of subdivided areas.

Abstract: A vibration energy absorber device includes a first fixing member fixed to a building bottom wall, a second fixing member fixed to a building foundation, a lead elastoplastic member having elasticity, both ends of the elastoplastic member being firmly coupled to the corresponding fixing members, and reinforcing members embedded in the elastoplastic member. The reinforcing members include a plurality of first members of a metal (e.g., iron) having a higher tensile strength than that of the elastoplastic member. The first members are wire rods extending from one end to the other end of the elastoplatic member, and are disposed in the elastoplastic member at equal angular intervals.