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Comparing to macro mechanical machining process, micro mechanical machining such as micro milling can create complicated micro structures on various materials using miniature tools with high material removal rates.
Acknowledgement This project is supported by the National Natural Science Foundation of China and Jiangsu Natural Science Foundation and the Innovation Foundation of Nanjing University of Aeronautics and Astronautics.
[2] S.Gordon,M.T.Hillery:Journal of Materials Processing Technology,Vol.166(2005), pp.321-329
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Kapoor: Journal of Manufacturing Science and Engineering, Vol. 126 (2004), pp. 695-705

Remarkable is the nearly equal Oi concentration after the process for the two materials.
Takenaka: Materials Science Forum, 196(201) (1995), p.1865 [3] H.
Yasuda: VLSI Science and Technology, ed.
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Roberts: Journal of Applied Physics Vol. 84 (1998), p. 2476

Materials and Methods Materials.
Moisture and ash contents are determined according to the American Society for Testing and Materials methods (ASTM-D2974-87) and AOAC Official Method 923.03, respectively.
Journal of pharmaceutical sciences Vol. 100 (2011), pp. 3260-3267 [8] A.B.
Sittikijyothin: Advanced Materials Research Vol. 239-242 (2011), pp. 477-480 [10] P.
Rhim: Journal of Food Science Vol. 67 (2002), pp. 194-197

Materials Science and Engineering: C. 29 (2009) 1959-64
Advanced Engineering Materials. 13 (2011) 93-9
Science. 249 (1990) 1527-33
Journal of Materials Chemistry B. 2 (2014) 6157-82
Journal of Materials Chemistry. 18 (2008) 1873-80

Journal of Anhui University (NATURAL SCIENCE EDITION), 2012, 34(4): 112-114
Journal of Xiamen University (NATURAL SCIENCE EDITION), 2013, 48(5): 56-59
Journal of marketing science, 2011, 13(3): 41-51
Magnetic materials and devices, 2011, 2(1): 59-61
Journal of Xinyang Normal University (NATURAL SCIENCE EDITION), 2011, 21(4): 105-19

On the basis of the existing research work, the paper considered the anisotropic properties of gravel materials, the correction factors of surface calculating deflection were proposed for the inverted pavement, which are used simply and directly in current pavement design method, and develop the existing theory and design method.
Acknowledgment Project 51078250 supported by National Natural Science Foundation of China.
[5] Tutumluter,E: Nonlinear Anisotropic Modeling of Dilative Granular Material Behavior.
Journal of Chongqing Jianzhu University, Vol.29（1）(2007):65-69
Journal of Jiangsu University(Natural Science Edition), Vol.28（6）(2007):540-543

Introduction Turning has been used for centuries mainly for cutting various types of metallic materials.
A growing demand for machining these intractable materials requires new advanced turning technologies [1].
Active materials, in particular piezoelectric or magnetostrictive materials, are used widely to make actuators because they can easily convert high-frequency electrical energy into mechanical vibration [4].
The use of active materials for machining processes: A review, International Journal of Machine Tools and Manufacture, December 2007, Pages 2189–2206 [5] Gi Dae Kim, Byoung Gook Loh.
An ultrasonic elliptical vibration cutting device for micro V-groove machining: Kinematical analysis and micro V-groove machining characteristics, Journal of Materials Processing Technology, July 2007, Pages 181–188 [6] J.H.

Material Model of Steel.
Material Model of Concrete.
Huo: Journal of Structure Engineering.
Lin: Journal of Structure Engineering.
Beijing: Science Press, China (2007) (in Chinese) [11] W.H.

These properties make GaN one of the most promising materials in optoelectronic, high temperature and high power devices.
Acknowledgment This work is supported by Special Funds for Major State Basic Research Project（2006CB6049）,  National Nature Science Foundation of China (60721063， 60676057，60731160628, 60820106003，60990311，60906025)，The nature science foundation of Jiangsu province(BK2008019，BK2009255) ，the  Research Funds from NJU-Yangzhou Institute of Opto-electronics.
“Effect of reactor geometry and growth parameters on the uniformity and material properties of GaN/sapphire grown by hydride vapor-phase epitaxy,” Journal of Crystal Growth, vol. 182, May. 1997, pp. 233-240
Simulation of gas flow in horizontal HVPE reactor and GaN growth.Journal of functional Materials and Devices, vol. 9 ,Dec. 2003, pp. 469-472
Journal of Crystal Growth, vol. 277, Feb. 2005, pp. 6-12, doi: 10.1016/j.jcr ysgr o.2 004.12.169

Study on the Salt Spray Corrosion and Erosion Behavior of TC4 Titanium Alloy Shuai Shao 1, a, Huizhi Xi 1, b and Yunpeng Chang 1,c 1School of Materials Science and Chemical Engineering, Harbin Engineering University, 145 Nantong Avenue, Harbin 150001, China ashaoshuai@hrbeu.edu.cn, bxihuizhi@yahoo.com.cn, cchang.y.p@163.com Keywords: TC4 titanium alloy; Erosion property; Salt spray corrosion resistance property.
Experimental procedure Materials.
The particle mass- erosion rate graph of two kinds of materials in erosion and salt spray corrosion - erosion cyclic conditions are shown in Fig. 3.
Journal of Yangzhou Teachers College Vol. 16 (1996), p. 32 ], so the corrosion speed of titanium alloy with passive film is about 1% of that without passive film[[] Jie Gu,Tianqing Liu:Materials Protection Vol. 33(2000), p. 4 ].
The passive film on the titanium alloy surface is very thin[[] Ping Huang,Kewei Xu,Yong Han:Rare metal materials and engineering Vol. 32 (2003), p. 272 ], about 2-6nm with no obvious interface with matrix and likely has high bond strength.