Abstract: A method transforms an image from polar coordinates into Cartesian coordinates. Therefore, the target image in Cartesian coordinates is subdivided into triangles defined by the vertices given in Cartesian coordinates. The respective polar coordinates are coded into attributes and these attributes are attached to each vertex. The attributes of any coordinates within the triangle are calculated by performing a bilinear interpolation on a graphics card and the polar coordinates are calculated from these attributes. Finally, the characteristics of the coordinates of the image in polar coordinates are transferred to the corresponding coordinates of the target image given in Cartesian coordinates. A method also consistently displays single ore multiple radar scan images with additional geographical data in one display plane. These methods may be performed by a computer program and implemented in a radar scan converter.

Abstract: A self-bonding coating composition for the production of electrical steel sheets cores comprising A) 100 parts per weight of at least one epoxy resin based on bisphenol-A-type and/or bisphenol-F-type, 100% of solids, B) 0.1 to 200 parts per weight of nano particles having an average radius ranging from 2 to 600 nm, C) 0 to 25 parts per weight of at least one curing agent selected from the group consisting of dicyandiamide, blocked isocyanate and Lewis acid or selected from the group consisting of phenolic resin, carboxylic acid, anhydride and Lewis acid, 100% of solids, D) 0.1 to 10 parts per weight of at least one additive, and E) 50 to 200 parts per weight of water or at least one organic solvent, ensuring increased re-softening temperatures as well as excellent bonding strength, corrosion resistance and electrical insulation of the coating.

Abstract: A process for the production of electrical steel sheet cores for use in electrical equipment comprising the following steps: a) applying of at least one coating layer of an aqueous composition onto the surface of the electrical steel sheet, the composition containing A) 100 parts per weight of one or more epoxy resin based on bisphenol-A-type, 100% of solids, B) 1 to 25 parts per weight of dicyandiamide, C) 0.1 to 10 parts per weight of additives, D) 0.

Abstract: Coating agent for producing an electric insulating coating on an electro steel sheet with good punching quality, weldability, annealing stability and high insulation resistance. Said agent comprises a metal organic and an organic film-forming agent and, optionally, chemically inert inorganic pigments and/or filler and other common additives such as antifoaming agents, leveling agents, catalyzers and the like.