Abstract: A computer-implemented method for characterization of solid particles, especially sand particles, includes the steps of: providing a sample of solid particles to be analyzed in a predefined sample area; taking at least one digital image of the sample of solid particles with a camera of a mobile computer device; performing an imaging particle analysis of the at least one digital image for extracting at least one particle size parameter and/or at least one particle shape parameter of the population of particles identified in the at least one digital image; making available the at least one particle size parameter and/or the at least one particle shape parameter via a user interface, via a machine interface and/or on a data storage medium.

Abstract: The use of a composition Z comprising at least one epoxy resin A, at least one curing agent B for epoxy resins and also zinc particles as cathode corrosion protection for reinforcements of reinforced concrete structures. The composition is here applied to the reinforcing steel at certain points and is suitable as corrosion protection for reinforcements of reinforced concrete structures both when erecting and repairing such a structure.

Abstract: A piston pin for connecting a piston to a connecting rod especially but not exclusively of an internal combustion engine is made from a sleeve formed by a non-cutting rolling procedure at formation of a longitudinal slot. The longitudinal slot of the sleeve may extend in a plane defined by the longitudinal axis of the sleeve, or may have a wave-like configuration, or may be formed between longitudinal edges interlocking in the form of a tongue and groove. The outer surface of the piston pin is cylindrical while the interior thereof is formed with a central cylindrical section which terminates on both sides in sloped sections.