Abstract: The present invention relates to a biomaterial comprising a cartilage graft scaffold substantially free of viable cells, wherein the cartilage graft scaffold exhibits a plural of notches in form of lamellae or grids.

Abstract: A lighting device which is suitable for generating mixed light, preferably even for generating white light is disclosed. The lighting device includes a light source for emitting excitation light of a specific wavelength ?2. At least two conversion elements are arranged one behind the other in the lighting device in the propagation direction of the excitation light. The conversion elements are used to convert the excitation light. In particular, a first conversion element is used to convert the wavelength ?2 of a part of the excitation light and a second conversion element is used to convert the wavelength ?2 of a part of the excitation light not converted by the first conversion element. In order to suppress an interaction between the conversion elements, the first conversion element and the second conversion element are separated from each other by a first distance.

Abstract: An arrangement for converting light emitted by an LED-light source. The arrangement includes a color conversion element which is designed to convert at least partially the light coming from an LED-light source into another wavelength, and a preferably plate-shaped light emission element which is arranged downstream of the color conversion element. The plate-shaped light emission element forms on one side facing away from the color conversion element, a structured light emission surface.

Abstract: Lighting devices having a variably adjustable light color and methods for adjusting the light color of a lighting device are disclosed. In one embodiment, the wavelength of light from a plurality of excitation light sources in a lighting device is converted at least partially by a plurality of color-conversion elements. The color conversion elements are matched to the wavelengths ?2, ?3, ?4, of the excitation light sources. In a second embodiment, the wavelength of light from an excitation light source is converted by way of either a first or second color-conversion element, wherein the color-conversion elements can be switched.

Abstract: A muffler and an associated assembly for cleaning exhaust gas, especially from small engines, include a metal catalyst carrier body and a retaining element which is preferably built into a muffler casing. The catalyst carrier body has a plurality of inner flow paths and is mounted in an exhaust pipe. The retaining element has an opening which surrounds at least a part of a jacket surface of the catalyst carrier body and is directly secured thereto, so that the catalyst carrier body remains dimensionally stable and can be transported. The retaining element can be joined to the exhaust pipe casing which forms an inflow chamber and an outflow chamber in such a way that the retaining element seals and separates the two chambers from each other. Due to the use of the retaining element, no jacket tube is required for the catalyst carrier body which enables the carrier body to be built into a muffler casing both directly and easily. A method for producing the assembly is also provided.

Abstract: A device for catalytically converting at least one component of an exhaust gas, including the exhaust gas from an internal-combustion engine, is described. The device includes a casing and a metallic support body formed from a plurality of layers of sheets. The casing at least partially surrounds the metallic support body and is connected to the metallic support body. The sheets are corrugated sheets or corrugated and smooth metal sheets. The metallic support body has at least two outer layers formed from smooth sheet-metal sections overlapping one another. The at least two outer layers are formed substantially diametrically opposite one another and in each case have connection-free areas with respect to the casing.