Abstract: A unit, including an assembly of two gas diffusion electrodes, between which a membrane is sandwiched. The assembly is sealingly connected by a first seal to a frame enclosing the assembly at an outer periphery thereof. The frame includes two opposite end faces. The frame includes duct-like apertures extending from a first end face of the two opposite end faces to a second end face of the two opposite end faces of the frame. The apertures are enclosed by second seals at the end faces on both sides of the frame and are sealed off with respect to each other.

Abstract: The invention relates to a method for providing a 3D-print data set of a dental model structure (100) to be mounted on an articulator (5), comprising: —providing an articulator data set of the articulator (5) on which the dental model structure (100) is to be mounted; —providing a dental situation data set which represents a dental situation of an upper jaw and/or a lower jaw, the dental situation data set including data to display the dental situation as a virtual representation of the dental situation on a display; —selecting at least one distance element (20) from a plurality of different predefined and/or prefabricated distance elements based on the articulator data set and the dental situation data set; —generating a connecting structure data set representing at least a virtual connecting structure (15) arranged between the virtual representation of the dental situation and a virtual representation of the at least one selected distance element; and—generating the 3D-print data set based on the dental sit

Abstract: The present invention provides a sandwich structure with a core element in honeycomb form and outer layers with carbon fiber and glass fiber layers, the glass fiber layers being applied to the outer sides of the sandwich structure.

Abstract: The present invention provides a sandwich structure with a core element in honeycomb form and outer layers with carbon fiber and glass fiber layers, the glass fiber layers being applied to the outer sides of the sandwich structure.