Abstract: A computer arrangement and a method for generating meshes of an object having an object volume within a shape defined by a front surface, a rear surface and an envelope surface in accordance with the following steps: (a) receiving input data regarding a set of line sections; (b) defining a circle with a radius Lcirc just large enough to enclose an outer contour of a front surface cross-section; (c) dividing each of the line sections into a number of consecutive line elements connected by nodes in accordance with equation: (1), where: nel(n)=number of line elements of line section 25(n), Lsect(n)=length of line section 25(n), c1, c2=predetermined constants; (d) generating front surface meshes; (e) copying the front surface meshes to the rear surface; (f) generating envelop surface meshes for the envelop surface; (g) generating a volume mesh for the object volume.

Abstract: A method for processing material comprising combinations of aluminum and plastic, such as aluminum bottle caps having a plastic coating, comprising the steps of: pyrolyzing the plastic in an inert atmosphere, cracking or gasifying the gases or vapours which are released in the course of pyrolysis, afterburning the coke which remains behind on the aluminum in the course or pyrolysis. The gases or vapours released are recirculated and are used, during pyrolysis, as an inert, oxygen-free medium.

Abstract: Rack for the cultivation of mushrooms and similar fungi, comprising superimposed troughs with side slats consisting of aluminum profiles and a bottom constituted by horizontal, extruded aluminum floor members running in transverse direction, through which members bars or tubes protrude.