1. The vertical tracerse stage in vacuum condition;Ohtsuka;JSME International Journal. Ser,1990
2. A newly developed long-stroke vertical nano-motion platform with gravity compensator, Journal of Advanced Mechanical Design;Takahashi;Systems, and Manufacturing,2008
3. Ferrohydrodynamics;Rosensweig,1985
4. An analysis on the magnetic fluid seal capacity;Meng;Journal of Magnetism and Magnetic Materials,2006