Physical phenomena in high current electrical discharges, at the electrode surface and in the near electrode plasma. This investigation includes electrode phenomena in vacuum arcs and high current vacuum interrupters, in MHD-generators, magnetically insolated diode, plasma thrusters and accelerators, filtered vacuum arc deposition systems and systems with hot refractory anode vacuum arcs. Laser-matter interaction phenomena. High current wire explosion phenomena. Arc producing nanostructures.