Abstract: A low energy electron beam of ions of an element to be imparted in polymeric material is formed and accelerated, the beam being subjected to electromagnetic separation so that only a high purity stream of the ion of this element impinges upon the substrate for implantation herein.

Abstract: A device for converting the energy of sea and ocean waves, including a turbogenerator connected by means of pipelines to input and output elements on which there are mounted ballast systems and stabilizers. The input and output elements are designed as a high pressure vessel and a low pressure vessel, respectively, each having a gas cushion. A high pressure compressor unit and a low pressure compressor unit are, respectively, mounted on these vessels and are connected to high pressure and low pressure gas tanks, respectively, and to the respective gas cushions. The converter is connected at at least two different points to the sea bottom by means of at least two flexible cords the length of at least one of which may be altered.