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The research of bamboo and wood composite materials processing has focused on some Asian countries.
But the study of wood composite materials is still relatively little.
Experimental materials and methods Materials.
Material drying: bamboo raw materials will be placed in a natural and open environment.
Acknowledgements The author would like to thank his teachers from and support of Beijing Forest University, School of Materials Science and Technology.

Abstract.Reinforced soil has been among the most effective soil modification materials.
Clay was used as sub grade material.
The advances of these materials have usually been considered by an increase in their applications.
Material Composite materials consist of two parts.
References [1] Akbulut, S., Arasan, S. and Kalkan, E. (2007) Modification of clayey soils using scrap tire rubber and synthetic fibres, Journal of Applied Clay Science 38, 23-32

The study of the structures of these elementary particles will contribute to the use of nuclear energy material.
Kramer: The European Physical Journal H 36 (2011) 245
Law: Journal of Geometry and Physics 56 (2006) 2093
Trautman: Journal of Geometry and Physics 58 (2008) 238
Rinaldi: Journal of Geometry and Physics 6 (1989)651

In recent years, researches on dewpoint corrosion mainly focus on materials in laboratory trial.
Test section is made of several different materials which were welded together.
Therefore, experiment did research on metal corrosion rate of different materials with temperature changing to identify materials' tempera-ture range in engineering application, as showed in Figure.3-5.
Anti-Corrosion Methods and Materials, 2004,51(3):173-188
Oil & Gas Journal,2010,108(7):44-48

Hence, it could be utilized to develop the light electro-magnetic active powder materials.
Materials Science & Engineering A. 2001, 302(1):83-91
Aerospace materials and technology. 1994, 24(1):1-5
The absorption materials of magnetic metal powder.
Journal of metal functional materials. 1994, 10(1):21-23

Quartz belongs to the hard and brittle materials, which has the characteristics of high strength, not conductive, low fracture toughness and high hardness [1].
Considering the chemical etching processing principle of the quartz materials and the existing processing technology, HF, HF+CH3COOH, NH4HF2 and NH4F+HF dissolved solution are currently used.
References [1] Yundian Zhang, Machining technology of hard and brittle materials (Science Press, China 2011).
Journal of Vacuum Science \& Technology A. 1993, 11(4): 763-767
Journal of chemical physics. 2002, 116: 275-280

Experimental Details The materials tested were Grade 2 commercially pure titanium (0.024% N, 0.024% C, 0.16% O, 0.111% Fe, 0.001% H, Bal.
Moreover, the three materials showed a more important change of self-corrosion potential when temperature changed from 35 to 65°C than that from 0 to 35°C.
Accordingly, the corrosion rates (CRs) of the three materials increased slightly at temperature from 0 up to 35°C, and then CRs increased greatly above 35°C.
Sargeant: Metals and Materials, Vol. 8(1992), p. 378-382 [2] R.
Gebert: Journal of Applied Electrochemistry, Vol. 33(2003), p. 795-805

The materials have much higher strength such as fast construction, high load bearing capacity, high construction quality but those have a fatal weakness as well.
The engineering method not only adopts a science but also an engineering experience.
The first one requires detailed information on the materials and processes such as mechanical, thermal databased at high temperatue of each structural steels and derivation of load-bearing capacity as the temperature within a fire compartmentation is going up.
Wong, Effect of Torsion on Limiting Temperature of Steel Structures in Fire, Journal of structural engineering 2006;132:726-732 [7] M.B.
Wong, Modelling of axial restraints for limiting temperature calculation of steel members in fire, Journal of Construction Steel Research 2005;61:675-687 [8] Kwon, IK, Experimental Study on Limiting Temperatures of Circular Hollow Sections, Advanced Materials Research, vol. 472-475, pp. 1206-1214 (2012) [9] Korean Standard Association, KS F 2257-1, Methods of fire resistance test for elements of building construction-General requirements, (2005)

Man: Mare Metal Materials and Engineering Vol. 3(2001), p. 220-223
Man: Mare Metal Materials and Engineering Vol. 5(2005), p. 701-704
Wang: Journal of Alloys and Compounds Vol. 1-2(2009), p. 21-24
Richards: Journal of Materials Engineering and Performance Vol. 6(2007), p. 710-819
Liu: Journal of Materials Processing Technology Vol. 1-3(2008), p. 275-280

This method is of important science value and guidance meaning in many engineering fields besides in auto industry on the basis of improvement as well as rational application.
Table 2: The former six free modal vibration frequency values Hz Order time 1 2 3 4 5 6 f 192.06 385.78 486.74 545.87 615.97 973.22 3.5 lightweight design Select QT450-10 as the axle housing body material, and the yield strength QS = 330 MPa; selects 45Mn2 as the axle casing material, and the yield strength QS = 735MPa.
The constraint is that the axle housing load does not exceed the maximum material allowable stress，that is, Smax [σ], Smax ≤ [σ] = 330 MPa.
References [1]Peng yong, Hao Zhiyong ,Dynamic lightweight design method based on virtual prototype [J].Journal of Zhejiang University: Engineering Science [2]Zhang yu,Zhu ping, Chen guanlong, Lightweight design of cover hinge of the auto drive based on the finite element method, [J].Shanghai Jiaotong University [3]Zheng songlin,Wang yansheng,Lu xi, Lightweight design method of automotive structural parts based on the strength variation [J].
Journal of Mechanical Engineering [4]Liu weixin, The car axle design [M].Beijing: Tsinghua University Press