Abstract: A method in which a hollow component is produced by the method steps consisting in casting and joining a sheet metal, wherein the hollow component can include thin walls and has a high recession in geometry is provided.

Abstract: An inner housing hub is arranged in a gas turbine about a gas turbine shaft and is formed as a component of an inner housing used to deflect hot gases exiting combustion chambers towards a turbine inlet region arranged in the direction of the gas turbine shaft. The inner housing hub includes at least one substantially cylinder casing-shaped securing portion having a cylinder casing-shaped main part, which has a hot side facing a hot gas path and a cold side facing away from the hot gas path. At least one web-shaped protrusion extends along the cold side and is arranged on the cold side on the main part in order to secure the inner housing hub. The web-shaped protrusion is made of a first material and the main part is made of a second material, the first material having a greater thermal expansion coefficient than the second material.

Abstract: An axial turbocompressor having an annular compressor passage which is arranged concentrically around a rotational axis, is delimited radially on the outside by a passage wall, and in which rotor blades, which may be assembled to form a ring, are arranged in a rotatably mounted manner around the rotational axis, is provided. The free-ending tips of the rotor blades lie opposite the passage wall in each case, forming a gap, and the passage wall, in the axial section of the tips, at least partially has a wall structuring and wherein a bleed opening of a bleed passage is provided in the passage wall for the tapping of medium flowing in the compressor passage. In order to enable an exceptionally efficient bleed of medium flowing in the compressor passage, the bleed opening is located in the wall structuring.

Abstract: The invention relates to a method for computer-aided simulation of technical processes. Methods of this type are required in particular in evolution simulation models of technical, in particular physical and/or chemical processes, which are intended to be propagated in time (evolution).

Abstract: The invention relates to a method for computer-aided simulation of technical processes. Methods of this type are required in particular in evolution simulation models of technical, in particular physical and/or chemical processes, which are intended to be propagated in time (evolution).

Abstract: Method for producing hydrophobic polymers, wherein a hydrophobic polymer is selected; a set of organisms is selected from among cells and/or cell products; aggregates are formed by working said cells and/or cell products in said polymers resulting in the formation of a so-called polymer-bio aggregate, wherein there is performed a new function of the thus polymer product. This invention further relates to the use of a so-called P.B.A. obtained therewith in specific applications.