Abstract: A method is proposed for increasing the carbon-content dependent dynamic stability of a toothed structural part, particularly of a toothed wheel. A curve of the carbon content portion in an edge layer of the structural part is adjusted so that the carbon portion, departing form the surface in direction to a core of the structural part, at first increases and as of a certain depth of the layer continuously decreases. Part of the edge of the layer is removed in areas of the structural part whose dynamic stress capacity increases as the carbon content increases on the surface of the structural part.

Abstract: Optical fiber cable with at least one optical fiber and with a tube surrounding each and every optical fiber, especially made of plastic, comprising at least one string-like element, which can be pulled out, being added to the tube for easy access to each and every optical fiber.

Abstract: An aerial cable with a surface of especially plastic or metal, the aerial cable having devices integrated into the surface for minimizing turbulent eddy currents. The devices being operative to provide the surface of the aerial cable with a flow optimized structure. The devices being formed as integrated notches, grooves, and/or dents.

Abstract: Optical fiber cable with at least one optical fiber and with a tube surrounding each and every optical fiber, especially made of plastic, comprising at least one string-like element, which can be pulled out, being added to the tube for easy access to each and every optical fiber.