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Chanthima1,3,e* 1Science Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand 2Department of Physics, Kyungpook National University, Daegu 702-701, Korea 3Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand aeakgapon_9@hotmail.com, bpr_2520@hotmail.com, chongjooknu@gmail.com, dmink110@hotmail.com, enatthakridta@gmail.com, Keywords: Europium; Glasses; Photoluminescence; Molar volume Abstract.
Huang, Growth and spectral properties of Er3+:Li6Y(BO3)3 crystal, Materials Letters 60 (2006) 418–421
Salin, Crystal growth, Luminescent and lasing properties of the ytterbium doped Li6Y(BO3)3 compound, Optical Materials 27 (2005) 1681–1685
Kang, A red-emitting heavy dopedphosphor Li6Y(BO3)3:Eu3+ for white light-emitting diodes, Optical Materials 33 (2011) 1297–1301
Fouassier, Luminescent properties of Eu3+-activated lithium rare earth borates and oxyborates, Journal of Luminescence 101 (2003) 1–10

The oversharp cutting edge and inhomogeneous workpiece materials are reasons of tipping.
Acknowledgments The author wishes to acknowledge the support of the national natural science foundation of china (№.50875026) and the doctoral starting fund for scientific research projects of HIST (№.20070033).
Krishnamurthy: International Journal of Advanced Manufacturing Technology, Vol. 23 (2004), p. 240 [3] Zhang Deyuan, Wang Lijiang: International Journal of Machine Tools & Manufacture, Vol. 38(3), (1998), p.165 [4] H.
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Tao: Journal of Materials Processing Technology, Vol. 148(2), (2004), p.239 (a) Clearance face and chisel edge Clearance face Rake face Marginal point Tipping Built-up edge (b) Rake face and marginal point Fig. 4 Wear and breakage of twist drill for vibration drilling （n=3600rpm, fr=0.04mm/rev, f=60Hz, A=16.5µm） Desquamation

Dynamics Simulation Research of Planar Four-bar Mechanism with Multi-joint Clearance Shao Jun Bo1, a, Xiao Wang2,b 1School of Mechanical Engineering Inner Mongolia University of Science and Technology,Baotou, Inner Mongolia, China 2School of Mechanical Engineering Inner Mongolia University of Science and Technology,Baotou, Inner Mongolia, China a429437399@qq.com, bwangxiao200701301@163.com Keywords: Dynamic Simulation ;Planar Four-bar; Joint Clearance Abstract.
Collision index n can reflect the level of material nonlinearity, normal metal materials takes the number of 1.5.In ADAMS, transient damping coefficient is the step function of collision depth, the value of c is determined by the Step function.
[2] Yigit A S,et al.Spring-dashpot Models for the Dynamics of a Radially Rotating Beam with Impact[J].Journal of sound and Vibration.1990,142(3):515-525 [3] Dubowsky S, Gardner T N: Dynamic Interactions of Link Elasticity and Clearance Connections in Planar Mechanical Systems.
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European Journal of Mechanics A/Solids, 2008, 27(5):885-886.

The box’s overall enclosure made of insulating material.
The traditional teaching is that teachers taught to students directly about their understand in the working principle of asynchronous motor from teaching materials , the induction motor-kind demonstration existed, but because of the stator windings embedded in slots, is not conducive to helping students more intuitive and emotional understanding asynchronous motor works.
Jia: Journal of Pingdingshan University, Vol. 1 (2000), No. 2, pp. 34-35
Wang: Journal of Electrical & Electronic Education, Vol. 1 (2002) No. 1, pp. 68-70
Zhou: Journal of Zhejiang Normal University (Natural Sciences), Vol. 36 (2013) No. 1, pp. 79-82

In 1997, Gschneidner and Pescharsky etc[4,5,6,7] had a breakthrough at room temperature magnetic refrigeration materials in Gd5SixGe4-x.
References [1] Xueling Huo, Xinghao Hu, Xuezhen Wang, Zhi Zeng: Journal of Shanghai University.Vol.6(2010),p.35-36 [2] Zai Feng, Wei Wu, Hui Zhao, Guangfu Yin:2009, Materials Characterization.
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Effect of Isothermal Heat Treatment on Dynamic Properties of a High Strength Steel Wenwen Du1,2, Qian Wang3, Lin Wang1,2,a* and Ding Wang1,2 1 School of Materials Science and Engineering，Beijing Institute of Technology, Beijing 100081, China 2 National Key Laboratory of Science and Technology on Materials under Shock and Impact, Beijing 100081 China 3Hubei Aerospace Vehicle Research Institute, Wuhan 430040, China alinwang@bit.edu.cn Key words: high strength steel; isothermal heat treatment; dynamic behavior; strain rate effect Abstract.
References [1] Baogang Geng, Study on the mechanical behavior of materials used in earth penetrator weapon, National University of Defense Technology, 2010：1-5
Ordnance Material Science and Engineering. 29(2006)31-34
Journal of Nuclear Material. 435(2013)128-136
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China 2 Lanzhou Institute of Animal Science and Veterinary Pharmaceutical Science, Chinese Academy of Agricultural Sciences, Lanzhou 730050, P.
Materials and methods 2.1.
Moisture contents of compost materials were declined gradually in the reactors during composting process.
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Carbon emission factor [12] and Water footprint factor [13] of energy and materials.
References [1] 2013 China Water Resources Official Journal.
International Journal of Sustainable Engineering, 2010. p. 1-13
Journal of cleaner production, 2015. 12: p. 168-179
Water footprint factor of energy and materials in textile and garment industry.

The development of the new composite material is established on the basis of polymer science.
(4) All materials using in the road can recycle, conducive to environmental protection.
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Chen: Liaoning communication science and technology.Vol.25,No.2(2002),pp. 8-10
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The excellent comprehensive performances of Ti-base composite materials enable them to be candidate materials for aero-engines, structural parts of rockets and turbojet engines, etc. [4-6].
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