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Research of Ultrahigh Speed Grinding Spindle System Based on Squeeze Film Damping Technology Tianbiao Yu, Yadong Gong, Hu Li, Jianyu Yang, Wanshan Wang Sch. of Mechanical Engineering & Automation, Northeastern Univ.
Shen yang 110004, China tbyu@me.neu.edu.cn, Keywords: Ultrahigh speed grinding, Squeeze film damper, Grinding wheel spindle, Squeeze film stiffness Abstract.

Lan, Y.Yang, Y.H.
Yang, H.Y.

Yang, S.
Yang: Chem.

Hu, J.Yang, J.
Hu,Y.Du, J.Yang, J.

Study on internal quality of billets for 20CrMnTiH steel Hongguang Li 1, Tianming Chen 1, Liang Chen 1,2, Jiaqi Wang 3, Wenzhong Yang 3 1 PanGang Group Research Institute Co., Ltd., Chengdu 611731, Sichuan, China 2 School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China 3 PanGang Group steel and vanadium Co., Ltd., Panzhihua 617062, Sichuan, China 903281775@qq.com Keywords: 20CrMnTiH Gear steel; Casting speed; Electromagnetic stirring; Secondary cooling intensity.
(in Chinese) [4] Yuebiao Yang, Shen Deng, Chaoyun Zhu, et al．Research and application for billet continuous casting process of 20CrMnTi gear steel[J]．

Fault Location in Distribution Systems Considering the non-liner Profile Characteristic of Voltage Sag on the Bus Tianwen Zheng1, a, Jianwen Yang 1, Xianyong Xiao1,2 and Ying Wang 1,2 1 College of Electrical Engineering & Information Technology，Sichuan University，Chengdu, China 2 Smart Grid Key Lab.
Automation of Electric Power Systems, Vol. 25(23)(2001), p.62 (In Chinese) [5] Sheng-nan Yu, Hai Bao, Yi-han Yang: J.

References [1] Z.H Yang , J.Huang, G.M Zeng,et al.
Yang, G.M.

Little Room Used with High Efficiency — Analysis on the Design Ideas of Small-sized Apartments ZhouJing1, a, Yang Tianyang2,b 1 The Department of Architectural and Civil Engineering, Taiyuan University of Technology ,China 2The Department of Architectural and Civil Engineering, Shanghai University,China a284170817@qq.com , bthomasyty0812@gmail.com Keywords: Small-sized Apartments, Utilization Ratio, Interior Design, Space Abstract: As house prices are soaring at present, small-sized apartments have become more and more popular among people.

Yang etc. summarized the principle, application and some research achievements of Backstepping algorithm[2].
[2] Yang Junhua, Wu Jie and Hu Yueming: Principle of Backstepping and Its Applications in Nonlinear Robust Control.

[2] Yang J S, Swager, TM: J Am ChemSoc, 120 (1998), p. 11864 - 11873 [3] Paula, G.: Materials Today, Vol. 8 (2005), p. 16 [4] A P de Silva, H.
[9] Yang, J.