Materials Science: Electronic and magnetic materials computational material science Coupling of multiple iron sequence parameters Crystal Defect Engineering Engineering in the field of crystallography Domain microstructure evolution Domain size effect, grain size effect, small particles, thin films Nanomaterials and Nanotechnology Phase transition between iron and iron Fundamentals and Characteristics Giant magnetostrictive materials and magnetic shape memory alloys The dynamic pathways of phase transition and domain change magnetic material New energy: solar energy biomass energy wind energy Geothermal energy Wave and tidal energy nuclear energy ocean energy Hydrogen energy technology Energy storage Bioenergy Electrical technology: distributed generation Power transmission and distribution system and equipment New energy storage technology Power electronics quality Electric traction electromagnetic compatibility Electrical Engineering Materials High voltage insulation technology High voltage instruments POWER SYSTEM ANALYSIS Electrical Measurement Electric motors and variable speed drives