Some of the works that have been performed with the Electron Microscope System during the period of August 2003 to July 2004 are presented. They include: 1) Synthesis of cerium oxide film in aqueous solution, 2) Analysis of microwave dielectric ceramics using EDX, 3) Microstructures of Al(5056) worked with introducing large strain, and 4) Preparation of functional polymeric nanospheres with miniemulsion.