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During etching, material is removed from the uncoated part to gets thinner.
LY13E050019) and National Natural Science Foundation of China (No.51475428).
Journal of Materials Processing Technology. 213 (2013) 621-630
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Journal of Micro and Nano Manufacturing. 1 (2013) 1-11

Along with the development of material sciences, manufacturing techniques, and some other basic technologies, the permissibility limited speeds of spindle bearings are gotten higher and higher and the service lifetimes longer and longer[16], but it still can not satisfy the continually development of the high-speed electric spindle technologies.
At the same time, the state performances are compared in different materials such as steel (GCr15) and ceramic (Si3N4) which are made of the ball elements, in which the basic preload in axial is 35N and the lubricant oil is N32 for steamer machines.
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The material of the panel is steel with Young’s modulus E=207000 N/, Poisson’s ratio γ=0.3 and density ρ=7.8 xkg/.
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Acknowledgements The research presented in this paper was supported by the National Key Special Science and Technology Subject of China (No. 2009ZX04001-24) ,National Natural Science Foundation of China (No. 51005003), and PhD Start-up Foundation of Beijing University of Technology.
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Materials and Methods Study Organisms.
The purified allelochemicals were identified by a gas chromatograph equipped with a mass selective detector (GC-MSD, Agilent Science and Technology Co.
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MATERIALS AND METHODS Grain Samples and Sample Preparation. purple and normal barley genetic resources were supplied from Biotechnology and Genetic Germplasm Institute, Yunnan Academy of Agricultural Sciences, China.
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Strontium-substituted Hydroxyapatitenanocrystals Synthesized in Ultrasonic field: use for protein adsorption Weiye Cao1, a, Junfen Sun1, 2, b* 1College of Material Science & Engineering, Donghua University, North People Rd. 2999, Songjiang, Shanghai 201620, China 2State Key Laboratory for modification of Chemical Fibers and Polymer Materials, Donghua University, North People Rd. 2999, Songjiang, Shanghai 201620, China acwy19890203@163.com, bjunfensun@dhu.edu.cn Keywords: Hydroxyapatite, Protein adsorption, Ultrasonic field, Strontium-substitution.
Ultrasonic chemistry is a new boundary science.
Hideki, Science and Medical Applications of Hydroxyapatite, Tokyo: Japanese Association of Apatite Science, 1992: 137
Liu, Barium hydroxyapatite nanoparticles synthesized by citric acid sol–gel combustion method, Materials Research Bulletin. 40(2005) 1617–1622
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Mesoporous materials have a major advantage that the mesoporous materials can achieve large specific surface area and pore volume.
Experimental Experimental materials.
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Experimental Method Preparation of Bimetal Materials.
Acknowledgements This study is financially supported by Guangxi Natural Science Foundation (Grant No.2011GXNSFF018001), Guangxi Natural Science Foundation (Grant No.0832001) and Opening Foundation of Key Lab. of New Processing Technology for Nonferrous Metal and Materials (GXKFJ 09-02).
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