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Acknowledgements The authors gratefully acknowledge the support provided for this research by the National Natural Science Foundation of China under Grant No. 50575092 and the National High-Tech Research and Development Plan of China under Grant No. 2006AA04Z214.
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Introduction Laser cutting technology is widely used in all kinds of materials processing.
Acknowledgments This work was supported by Research Project of State Key Laboratory of Mechanical System and Vibration (MSV201204) and Shanghai Science and Technology Development Fund for the Program of Shanghai Subject Chief Scientist (10xd1421000).
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Meanwhile, the raw materials included the cement in 42.5 strength grade and the tap water.
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The "optimal" approximating or fitting of the known data means that the analytical expression of Y = f (x, c) adapted to the background material is used to reflect the dependency between x and Y.
Acknowledgment This research is supported by Achievement Transfer Program of Institutions of Higher Education inChongqing（No. kjzh11221）and Chongqing Engineering Research Center for Metallurgy Inspection & Equipment (No. cstc2011pt-gc70007) , the National Natural Science Funds(NO.51275547) and Research Foundation of Chongqing University of Science & Technology (No.
CK2011B02),the Science & Technology Innovation Foundation of Ministry of Science & Technology for Small-Medium Enterprises(No. 12C26245116128 & No. 12C26215116103） References [1]Jia Bi,Zhang Hua,Shi Jinliang, Chang Jin,Zhang Jia xiang,Fu Wei song.
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Materials and Methods The Source of Bacteria.
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New materials, information, biology, communication, energy, aerospace, electronics and many other fields’ new technique are profoundly changing people's lives, the application of new technique plays a more and more important role in economic growth.
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Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications Apatite Formation on Polymers Coated with Titania Synthesized from an Aqueous Solution Naoshi Ozawa 1, Yoshihiro Ideta 1, Takeshi Yao 1 and Tadashi Kokubo 2 1 Graduate School of Energy Science, Kyoto University, Kyoto, Japan yao@energy.kyoto-u.ac.jp 2 Graduate School of Engineering, Kyoto University, Kyoto, Japan Keywords: Apatite, Organic Polymers, Titania, Aqueous Solution, Fluoro-complex, SBF Abstract.
Bioactive materials with various mechanical properties can be developed by the present method.
When titania thin film is formed on wide variety of materials, especially low heat resistant materials such as organic polymers, by using this method, and has an apatite-forming ability, bioactive materials with various mechanical properties can be developed.

Experiment The materials and devices in the experiment of the explosive hardening of hadfield steel were shown in Fig.1.
Fig.1 The materials and devices in the explosive hardening of hadfield steel By using the technology of wire-electrode cutting, the unprocessed hadfield steel and the hadfield steel of three times of hardening were cut parallel to the surface at the intervals of 2mm in depth.
References [1] Erfeng An, Jun Yang and Pengwan Chen: Explosive Materials.
Forum Vol. 38 (2009), p. 25 [2] Fucheng Zhang, Bo Lv, et al: Chinese Journal of Mechanical Engineering.
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