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Finite Element Analysis and Dynamics Charateristic Study for High-speed Magnetic Suspension Motorized Spindle of CNC Machine Tools Yuxin Sun1,a, Ling Ding1,b, Tao Shi1,c and Xianxing Liu1,d 1School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, China asyx4461@ujs.edu.cn, bkateding@163.com, c414213579@qq.com, dliuxianxing@ujs.edu.cn Keywords: motorized spindle, Active Magnetic Bearing, bearingless induction motor, finite element analysis, rotordynamics.
At present, the supporting bearing of motorized spindle of CNC machine tools mainly include AMB, hydrodynamic-hydrostatic bearing and ceramic bearing[1].
Li: submitted to Journal of Harbin Bearing.
Kudryavtsev: submitted to Russian Journal of Nondestructive Testing.
Liu: Design and Finite Element Analysis of High Speed Motorized Spindle System Based on Bearingless Induction Motor, 2010 International Conference on Mechanic Automation and Control Engineering (2010)

Venkata Sindhuri3 1Assistant Professor, Department of Civil Engineering, Annamacharya Institute of Technology and Sciences, Tirupati, Andhra Pradesh. 2,3Assistant Professor, Department of Humanities and Basic Sciences, Annamacharya Institute of Technology and Sciences, Tirupati, Andhra Pradesh.
Minerals Engineering, 12(1), 75-91
ACI Brick International, 21 (5), 61-66
ACIMaterials Journal, 97(5), 536-549
International Journal of Mineral Processing, 59(3), 247-266.

Yasuda, Effect of surface texturing on friction reduction between ceramic and steel materials under lubricated sliding contact, Wear, 254 (2003) 356–363
Zhou, Investigation of CO2 laser beam modulation by rotating polygon, Optics and Lasers in Engineering, 49 (2011) 132–136
Ougiya, Rapid Generation of Surface Dimples Using End Milling, International Journal of Automation Technology, 1 (2007) 45-51
Wenzel, Resistance of Solid Surfaces to Wetting by Water, Industrial and Engineering Chemistry, 28 (1936) 988-994
Matsumura, Surface Profile Analysis in Milling with Structured Tool, International Journal of Automation Technology, 13 (2019) 101-108.

Using Acoustic Emission in Fracture Monitoring of Cementitious Composites Gabriel CSEFALVAY1,a, Tomas TRCKA1,b, Ondrej VODAK2,c, and Petr SEDLAK1,d 1Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 8, Brno 61600, Czech Republic 2Institute of Structural Mechanics, Faculty of Civil Engineering, Brno University of Technology, Veveri 95, Brno 60200, Czech Republic axcsefa00@stud.feec.vutbr.cz, bxtrcka03@stud.feec.vutbr.cz, cvodis@seznam.cz, dsedlakp@feec.vutbr.cz Keywords: Acoustic Emission, Failure Location, Numerical Modeling, Cementitious Composites.
Introduction Among all composite materials used in civil engineering, concrete is considered as the most used one.
Advanced Tool for Engineering Nonlinear Analysis [8], offers tools specially designed for computer simulation of concrete and reinforced concrete structure behavior, and its non-linear FEM code is based on a fracture and damage mechanics, and plasticity approach.
J., Sarkis: Journal of Nondestructive Testing & Ultrasonics (1999), p.1435
In 30th European Conference on Acoustic Emission Testing & 7th International Conference on Acoustic Emission - Proceedings.

Study on Brown Coal Pyrolysis and Catalytic Pyrolysis Gangwei Zhao 1, a, Weiqi Yu 1, b,Yunhan Xiao 2, c 1 Research Center for Energy and Power, Chinese Academy of Sciences; Key Laboratory of Advanced Energy and Power, Chinese Academy of Sciences (Institute of Engineering Thermophysics), Beijing, China 2 Research Center for Energy and Power, Chinese Academy of Sciences; Key Laboratory of Advanced Energy and Power, Chinese Academy of Sciences (Institute of Engineering Thermophysics), Beijing, China agangweizhao@mail.etp.ac.cn, byuweiqi@mail.etp.ac.cn, cyhxiao@njbas.ac.cn Keywords: brown coal, catalyst, catalytic pyrolysis, thermogravimetric analysis Abstract.
Catalytic pyrolysis About 20 mg of coal samples were placed in a ceramic crucible, and pyrolysed under 30 ml/min N2 flow at heating rate of 20K/min from 378 to 1073k °C.
Acknowledgements This work was financially supported by the International Science & Technology Cooperation Program of China (2010DFB70560) and the Science and Technology Project of Lianyungang City, China (2010GH0902).
Yang and N.S.Cai:Journal of Fuel Chemistry and Technology Vol. 34 (2006), p.650

Overview of Development and Application of Ultra-Smooth Surface Abrasive Flow Polishing Techniques Kehua Zhang 1, a and Guofeng Wang1,2, b 1 Precision Engineering Institute of Zhejiang Normal University, JinHua 321004, China 2 Lanzhou JiaoTong University, Lanzhou 730070, China a mature@126.com, bwgf_okgood@163.com Keywords: Ultra-smooth surface, Abrasive flow polishing, Soft contact polishing, Damage free Abstract.
The fluid polishing technology had been successes applied to process the optic curved, ceramic substrate and synthetic crystal.
Fourth Edition, ASM International, (2003), p. 43-49 [2] J.R.
Boldridge, et al: Journal of the Electrochemical Society, (2007), p.
Wang: Modern Manufacturing Engineering, Vol. 8 (2004), p. 12-15 [7] G.W.

Design of an intelligent fire-fighting robot Ze Lun Li1, a , Zhi Cheng Huang2, b and Xian Ling Deng1, c 1 College of Mechanical and Dynamic Engineering, Chongqing University of Science and Technology, Chongqing 401331, China 2 College of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute Jingdezhen333001, China aEmail: instru@163.com bEmail: huangwu555@sina.com cEmail: deng_deng86@yahoo.com.cn Keywords: Module Intelligent, fire fighting robot, obstacle avoidance ultrasonic, single chip microcomputer Abstract.
Journal of Intelligent and Robotic Systems, Springer Netherlands, 2001,1(30), 29～48
Proceedings of the Fourth International Conference on Computer and Information Technology[M] (CIT04) [4] A.

Spiral Defect Reduction of Hard Disk Drive Media Aunticha Pongtrairata, Angsumalin Senjuntichaib Department of Industrial Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand, 10330 aAunticha.P@Student.chula.ac.th, bangsumalin.s@eng.chula.ac.th Keywords: HDD Media, Spiral Scratch, Six Sigma, Response Surface Method.
This process is inspected by well trained engineers.
Gee: Failure Analysis of Ultrasonic Pitting and Carbon Voids on Magnetic Recording Disks, Ceramics International, Vol. 30 (2004), p. 1619-1622
Chompu-inwai: Application of Cleaner Technology and Experimental Design for the Reduction of Chemical Substance Consumption in the Hard Disk Drive Arm Coil Assembly Process, International Conference of Computers and Industrial Engineering (CIE), Awaji, Japan, 25 – 28 July 2010, p. 1 - 6
Devore, in: Probability and Statistics for Engineering and Sciences, 8th ed.

Journal of the European Ceramic Society (2004) Vol.24, p.197
Journal of the European Ceramic Society (2003) Vol.23, p.2361 [6] Ambacher, O.
Chemical Engineering Science, (1998)Vol. 53, p.679. [11] Massey, B.S; "Mechanics of fluids".
Van Nostrand Reinhold (International). 1989
Journal of Membrane Science (2000) Vol. 170.

Some Considerations of the Pulse Power Switch Centered on Thyristor Device Wei-bo Li , Wang Xin, Quan Feng , Wei-chao Li , Zhao-long Sun Naval University of Engineering, Wuhan, China E-mail: hustlwb@163.com Keywords: Thyristor, Pulse Power, Static and Dynamic Parameters, Trigger Power, Cooling Capability.
Photos of the switches General precautions are explained as follows: • Handle components with care as some are fragile (i.e., thyristors & ceramic insulators); • Avoid touching contact surfaces of components (if necessary, clean components with alcohol) ; • Prevent scratching of contact surfaces; • Some operations will require assistance from another person.
Naval Engineering Journal, Vol.112, no. 3, 2000, pp. 77-82
IEEE XIX International Conference on Electrical Machines.
An effect temperature measurement system for the high voltage pulse power switch application, International Conference on Electronics, Communications and Control (ICECC2011), Sep. 9-11, Ningbo, China, pp. 3535-3538.