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In rolling method, plastic property of bamboo and rolling force are important factors.Bamboo is an unidirectional composite materials that is made up of the fiber and the matrix[4].
Materials and methods Materials The bamboo used in this experiment harvested at 1 years of age from Linan city in Zhejiang province .
Kyoto Japan, (2007) 3 Zhang Wei, Li Wenbin,Yao Wenbin:Journal of Beijing Forestry University.
DAS: Journal of Materials Science.Vol. 40(2005), p.5249 5 Zhang Wei: Theoretical and Experimental Research of Mechanical Method for Processing Bamboo Fiber. chapter,4,Beijing Forestry University,(2009).
The authors would like to express our special appreciation for Fund Committee and Science and Technology Department of Zhejiang Province.

Decomposition of the minerals, lowering of cemented materials strength, thermal stress spreading of internal structure, mutual friction and extrusion etc. of mineral particles etc. are complicated, and transmission routes in the ultrasonic wave are different.
The elastic modulus reflects the capability against deformation of materials.
Buoyancy-induced flows and phase-change heat transfer in a vertical capillary structure with symmetric heating, Chemical Engineering Science[J]. 2000, 55(14): 2653~2661 [7] Long Ming-qing,Hua Zeng-qiang,Damage Form of Mono-axial Compression of Testing Piece of Rock and Lowering of Bearing Force [J],Journal of Rock Mechanics and Engineering, 1998, 17(3); 292~296 [8] Liu Bin, Relation of elastic wave speed, attenuation and anisotropy and fabrics under different temperature pressures [J],Frontier of Geosciences,2000,7(1): 247~257 [9] JIN Yong-fei,DENG Jun,WANG Wei-feng,CHEN Xiao-kun, A Study of Wireless Monitoring Early Warning Technology of Goaf Temperature Field[J],Applied Mechanics and Materials, 1577~1583,2012 [10] JIN Yong-fei,,DENG Jun,YUE Ning-fang, ZHANG Xin-hai, Formation Mechanism of Coalfield Fire and Progress of Research on Extinguishing and Control Technology[J], Sustainable Development of Natural Resources, 491~498,2012 [11] C.Drebenstedt, D.Guat, C.Wang.
Latest Developments in Coal Fire Rrsearch-Bridging the Science, Economics, and Politics of a Global Dister[R].
Journal of Mines,1988,36(9):434~436

Currently FSW used to join several materials in similar and dissimilar combination such as ferrous materials, non- ferrous materials, composites and plastics [7-10].
Rajesh: "Influence of Processing Parameters on Induced Energy, Mechanical and Corrosion Properties of FSW Butt Joint of 7475AA",Journal of Materials Engineering and Performance , 2011
Balasubramanian: "Multi-Response Optimization of Friction-Stir-Welded AA1100 Aluminum Alloy Joints", Journal of Materials Engineering and Performance(2011) [5] P.Cavaliere, A.Santis:"Effect of welding parameters on mechanical and microstructural properties of dissimilar AA6082–AA2024 joints produced by friction stir welding", Materials and Design(2009) [6] H.
[11] Blignault C., D.G.Hattingh:"Optimizing Friction Stir Welding via Statistical Design of Tool Geometry and Process Parameters", Journal of Materials Engineering and Performance, 2011 [12] P.Cavalierea:" Effect of welding parameters on mechanical and microstructural properties of AA6082 joints produced by friction stir welding", journal of materials processing technology 200, 2008 [13] E.T.
Akinlabi:" Effect of Shoulder Size on Weld Properties of Dissimilar Metal Friction Stir Welds", Journal of Materials Engineering and Performance, 2011 [14] F.A.

Approaches to the description of destruction of materials and used at this criterion are considered.
This approach was spread for construction of models of polymeric materials [28].
The accounting of memory and fractal properties of real materials at mesolevel.
Tyagel’sky, Journal de Physique, coll.C3 (1991) p.
M, Science, (1978) p. 304

Also, it is important to underline the importance of theory of dislocations to explain the behavior of materials.
In practice and for common materials in mechanical engineering its value is a few micrometers.
Toupin, Elastic materials with couple stresses.
Journal of Manufacturing Science and Engineering, Transactions of the ASME. (2004), Vol.126(4), p. 679–684 [9] U.F.
Gao, Indentation size effects in crystalline materials: a law for strain gradient plasticity.

Material and Methods Materials.
European polymer journal, 40, 2077-2087(2004) [6] R.Q.
Journal of membrane science, 249,148-155(2006) [10] P.K.
Nano-material for The Life Science, chapter 5(2010) [15] P.K Chu, J.K.
Material Science and Engineering, 36, 143- 206(2002) [16] M.

Materials and Methods Sand box condition.
[7] ADDISCOTT T M, WACENET R J ,Concept of Solute Leaching in soil:A Review of Modeling Approaches,Journal of Soil Science. 36(1985)401-411
[17] PACHEPSKY Y A,CRAWFORD J W ,RAWLS W J.Fractal in Soil Science,Geoderma, 88（1999）137-164
[18] LAPIDUS L,AMUNDSON N R,Mathematics of Adsorption in Beds,Journal of Physical Chemistry ,56(1952)984-988
[20] LAPIDUS L,AMUNDSON N R.Mathematics of Adsorption in Beds,Journal of Physical Chemistry ,56(1952)984-988.

Journal of Manufacturing Science and Engineering, Transactions of the ASME, 2007,129(6):991–999
Computational Materials Science, 2007, 39(2): 416–423
Welding Journal, 1993, 72: 269-278
Welding Journal, 2008, 87: 11-17
Welding Journal, 2008, 87: 44-50.

., have developed rapidly, many precision components which composed of complex shapes (such as closed and irregular surface), new materials (such as magnesium alloy, aluminium alloy, ceramic, etc.) proposed more stringent requirements to ultra-precision processing technology.
Acknowledgements This project is supported by science and technology foundation of ShanXi(20090321041) References [1] J.L.Yuan, F.H.Zhang,Y.F.Dai, et al: Chinese Journal of Mechanical Engineering, Vols.46, No.15(2010), p.161-177.
[6] A.C.Wang, S.H.Weng: Journal of Materials Processing Technology, Vols.192-193 (2007), p. 486- 490
(In Chinese) [8] A.C.Wang, S.J.Lee: International Journal of Machine Tools & Manufacture, Vol.49(2009), p.1063-1069
(In Chinese) [10] W.H.Li, H.L.Chen and S.Q.Yang: Key Engineering Materials, Vol. 455(2011), p.174-180.

Introduction Porous silica, a kind of amorphous inorganic solid materials, has large specific surface area, abundant pores, excellent adsorption ability, and chemical stability, and is widely used as pollutant adsorbent, gas separation materials, catalyst carrier, HPLC packing, et al.
Acknowledgment This work was supported by the National Natural Science Foundation of China (20636030, 20706011) and the Natural Science Foundation of Hebei province (B2010000023).
Lin, “The Effect of Catalysts on TEOS Hydrolysis-Condensation Mechanism,” Journal of Inorganic Materials, Vol. 12 (3), Jun. 1997, pp. 363-369
Sun, “The Mechanism of Hydrolysis and Condensation of Organic Silicon Oxygen Alky,” Chinese Journal of Colloid & Polymer.
Yuan, “The Dynamic Laser Scattering(DLS) Investigation on the Hydrolytic Polycondensation of Tetraethylorthosilicate(TEOS)”, Materials Review.Vol. 20 (6), Jun. 2006, pp. 144-146