State control of passivating films in electrolytic in-process dressing precision grinding for silicon nitride. - C. Z. Ren; W. D. Jin (Int. J. Comput. Appl. Technol., 2007)

An experimental study on charring of cellulosic biomass in ultrasonic vibration-assisted pelleting. - Q. Feng; W. L. Cong; M. Zhang; Z. J. Pei; C. Z. Ren (Int. J. Manuf. Res., 2011)