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Acknowledgment The authors wish to thank the support of Natural Science Foundation of China (50745017, 50875194) and Nature Science Research Program of Shaanxi province education office (08JK305).
Christian: Rapid Prototyping Journal Vol.6 (2002), p.259
Tang: Rapid Prototyping Journal Vol.12 (2006), p.12
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The main material and reagents of the experiment was: waterborne polyurethane (PU), butyl acrylate (BA), Methyl methacrylate(MMA), Acrylic acid (AA), Sodium dodecyl sulfate (SDS) , Potassium persulfate (KPS), Sodium bicarbonate (NaHCO3) , Rosin , deionized water .The reference chemical reaction mechanism was below: C=C Addition  1) MMA +BA C-R3-COOR4-C=C (PA) O=C=N-R1-N=C=O + C=C-R2-OH C=C-R5-R1-NH-COOCO-R2-C=C 2) PU + Vinyl monomers  C=C Copolymerization (Alkenyl capped PU) 3) PA + PU PUA　(Alkenyl polymerize PUA) Results and Discussion A.
In order to understand the morphology of the latex particles, the Malvern particle size analysis for the PU raw materials and PUA composite emulsion was used, the results were shown in Fig. 2.
Acknowledgement This paper has been supported by the fund of the National Natural Science Foundation, 60972134 and the Fundamental Research Funds for the Central Universities, SCUT, 2009zm0009 References [1] H.Cao, Journal of printing graphic, Vol.20(1999), p.43 [2] R.T.Wu, H.X.Zhang, Journal of printing quality and standardization, Vol. 27(2005), p.84 [3] X.Y.Liu,Adhesive, Vol. 26 (2005),p.46 [4] I.Nigo, G.Alez, Progress in Organic Coatings.
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Experiment material The calcareous sand used in this experiment was sampled from China Nansha Islands.
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Traditional Internet resources mainly focus on the teaching and offer teachers the teaching materials, PPT that being used as teaching.
However, the distributed community education transfer the design and development of the resources of the teaching materials, PPT that focus on teaching into the structure category resources design of Internet curriculums, researching study column and certain degree of organization while the construction of resources content into supporting learning and caters for the educational ideology posed recently.
[3] Li Mingli, “Application of Grid in Distance Education,” Journal of Software, vol. 8, 2008, pp. 38-39
[10] Chen Hongwei, Yan Hui, “On Digital Community Construction Architecture,” Journal of Harbin Financial College, vol. 1, 2006, pp. 40-43
[13] Li Xianyong, Luan Xulun, “On the Application of Cloud Computing Technology in Library,” The Journal of the Library Science in Jiangxi, vol. 1, 2009, pp. 105-106.

Through the processing simulation, NC machining simulation can simulate the overall process of NC machining intuitively in computer without using physical materials and occupying machine, also it can inspect the rationality and exactness of NC code, thus it plays a role of shortening product developing cycle, reducing the cost of product and improving utilization ratio of machine [3] [4].
This paper adopted three axis Siemens NC mill machine as the processing machine, selected ABS resin as blank material.
Journal of Engineering Graphics, 2002,1:8-14
Journal of Huaqiao University(Natural Science), 2010, 2:126-131
Journal of Hefei University of Technology (Natural Science), 2004, 1:109-112.

Material and methods Materials.
Acknowledgements This work was financially supported by the Joint Funds of the National Natural Science Foundation of China (u0837602).
Mzyk: International Journal of Mineral Processing.
Fuerstenau: International Journal of Mineral Processing.
Barbaro: Journal of Minerals Engineering.

The diameter of specimen is 2b, the tip radius of notch is ρ, depth of notch t, open angle of notch α.The material of test specimen is 45 medium carbon steel, it’s σb=734Mpa, σs=468Mpa, and it is thermal refined.
Acknowledgment：The work is supported by Funds of Ministry of Education, China (208152) References [1] Y.Q.Sun: Machinery Design & Manufacture Vol.15 No.8 (2006), p.39 [2] C.Su: Journal of Machine Design and Research Vol.14 No.1 (1997), p.35 [3] X.
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It can be obtained the material constants from the notch low cycle fatigue data in Table1 and Table 2.
Acknowledgements The work was supported by the National Natural Science Foundation of China (no.50875080).
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When the content of nano-particles is equal, the equivalent elastic modulus of materials with square particles is bigger than the equivalent elastic modulus of materials with round particles.
This may be related to the following factors: materials are assumed to be uniform and periodic; the thickness of interface layer is not considered; the complex reactions may occur in materials; test conditions and so on.
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Huazhong University of Science and Technology, Wuhan, China *yangbing@dfmc.com.cn Keywords: hot stamping; light-weight design; B-pillar reinforcement panel; CAE Abstract.
In this trend, in order to meet both lightweight and automotive crash safety requirements, new materials and new forming technologies are applied more and more.
Mechanical properties of these materials are listed in Table 2.
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E., A review on hot stamping, Journal of Materials Processing Technology, vol. 210, no. 15, pp. 2103-2118, Nov. 2010.