Abstract: A system and a method for the production of cellular materials are described. In particular, a system and a method for the production of cellular materials with several geometries such as honeycomb geometry, chiral geometry and auxetic geometry are described. The innovative concept of the present invention concerns the pre-formation of the cellular structure by penetration of a reinforcement fabric by means of punches properly structured. The employment of punches housed on one of the matrices of the device allows obtaining several geometries without need of complex fabric pre-formation operations or of manual placement of the fabric in the interstices of the mold.

Abstract: Elastic member bundled by pencil band is mounted to the lower edge of support part. Elastic member is composed with tungsten wires which are 25 mm in the length and 0.15 mm in diameter bundled with every 30 wires in one bundle. The tip part of each element wire of elastic member contacts polishing pad with the tip end cut round and performs dressing of polishing pad. The wire size of the tip part of each element wire of elastic member is made to be fine and the cutting width on polishing pad is made to be narrow, and at the same time, the rigidity of elastic member is made to be enhanced by bundling each element wire of elastic member with pencil band, and a large pressure is made to be pressed to the fine tip part of each element wire. Therefore, the tip part of elastic member can give an effective incision depth to polishing pad.

Abstract: A method and a device for effecting the cordless retraction of the gingival sulcus tissue that includes a dam shaped to be fitted onto a tooth. In one embodiment, the well of the dam is pre-filled with a predetermined amount of a flowable retraction material having a heavy viscosity or putty consistency. The preloaded tooth dam is fitted to a prepared tooth so that when pressure is applied onto the tooth dam, the retraction material is displaced under pressure and forced into the sulcus, causing the gingival tissue to retract away from the tooth to enlarge the gingival sulcus. In another embodiment the cap is filled with a dilatant material. In another embodiment, the cap is filled with an impregnated compressible porous material. In yet another embodiment, the cap is pre-dosed with an astringent or hemostatic agent.

Abstract: A suspension system for a wheeled vehicle is provided, the suspension system being adapted to support at least one wheel of the vehicle and comprising at least one shock absorbing device adapted to be activated as a result of the motion of the at least one wheel in a substantially vertical direction, the suspension system further comprising electrical power generating means in fluid connection with the at least one shock absorbing device so that the activation of said at least one shock absorbing device results in electrical power being generated. Furthermore, the suspension system comprises means for absorbing at least partially the electrical power generated, the absorption of electrical power resulting in the stiffness of said at least one shock absorbing device being varied as a function of the electrical power absorbed.