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Lin: Journal of Materials Processing Technology Vol. 177 (2006), p. 382 [8] Y.Y.
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Sun: Journal of Materials Processing Technology Vol. 187 (2007), p. 145 [10] C.D.

[3] Composite Materials Handbook Volume 1.(1997)
[8] Rajiv Asthana, Narendra Dahotre, Ashok Kumar, “Material science in Manufacturing”, pp.409,(2006)
Li & Mimi Keating, “Morphology And Crystallization Behavior Of HDPE/CNT Nanocomposite”, Journal of Macromolecular Science, Vol.13, pp.231–245, (2006)
“The Behavior of Structures Composed of Composite Materials”,(2004)
“Mechanical properties of multi walled carbon nano tubes reinforced polymer nano composites”, Indian Journal of Engineering and Material Sciences, Vol.17, pp.331-337, (2010).

The micro-hardness is also related to the percentage of cold work of the materials.
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Three different materials were used to model the dam, and the acceleration response of arch dam under the observed seismic waves was simulated.
Fig. 1 Finite element model and partitions of different materials of dam Arch dam and boundary finite element model has a total of 8819 nodes, 6309 units including 3381 dam units.
In order to simulate the real situation as much as possible, three different concrete materials are used in the dam model, as shown in Fig. 1.
Tu, Journal of Hydraulic Engineering, Vol. 10 2 (2009)
Li, Journal of Hydraulic Engineering, 5 (2009)

Aluminum-based metallic material as the frame or the skin material is widely used in vehicle industrial production.
The triboelectrification theoretical analysis of material The material triboelectric testing platform is designed for triboelectric properties of material study[2].
Constant friction of the skin material and the space particles can be equivalent to a current source charging to the material.
Journal of Detection & Control, 1999, 21(4):46~49 [2] Hui-zhi Zheng, Xiao-feng Hu, Zhao-heng Du.
Beijing: Science Press. 1983 [7] C.

The state-of-the-art membrane technology can effectively compete with the conventional ones in the areas of energy-saving, using simple and non-harmful materials, recovery of minor but valuable compounds from the main stream, easy to operate, low maintenance process [2] to mention a few examples.
Dense inorganic membranes are made of either polycrystalline ceramic materials or metals which select specific gas species to pass through the dense material [3].
Diniz da Costa, Hydrogen gas mixture separation by CVD silica membrane, Journal of Membrane Science, 323 (2008) 144-147
Itoh, Development of tubular substrates, silica based membranes and membrane modules for hydrogen separation at high temperature, Journal of Membrane Science, 267 (2005) 8-17
Xu, Modified dip-coating method for preparation of pinhole-free ceramic membranes, Journal of Membrane Science, 367 (2011) 14-20

Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China 2.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50809070 ).
Research on influence of pre-existing crack geometrical and material properties on crack propagation in rocks, J.
International Journal of Rock Mechanics & Mining Sciences 41(2004):1329-1364 [9] Li yinping, Wang yuanhan, Xiao sixi, Interaction of frictional cracks in rock like materials, J.
Chinese Journal of Rock Mechanics and Engineering, 22(2003): 552-555

Introduction Geopolymer cement is produced by mixing materials that contain aluminosilicate (also called precursor materials), such as fly ash, slag, laterite and other natural or by-product materials, with either an alkaline solution (NaOH, Na2SiO3, and K2SiO3) or an acidic solution (H3PO4).
Moreover, the alkali-to- precursor material ratio was found to be in the range of 0.4 to 0.6 [12, 13] There is little research on geopolymer mortar produced from naturally occurring materials such as laterite soil.
Furthermore, using natural materials like laterite soils to produce geopolymer mortar can provide advantages to rural areas in developing nations by allowing the production of construction materials at the construction site.
Materials.
Ghosh, “Effect of mix composition on compressive strength and microstructure of fly ash based geopolymer composites,” Journal of Engineering and Applied Sciences, vol. 4, no. 4, pp. 68–74, 2009

Experimental and Materials Materials.High-purity (90%) Na–montmorillonite was purchased from Anji County, Zhejiang Province, China.
Materials characterization by scanning electron microscopy.
The 4-chlorophenol removal efficiency of different materials varied.
Thus, they were classified as nanoscale iron materials.
Journal of Agricultural and Food Chemistry , Vol.56(2008), pp.1336-1342

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Guo: Progress in Natural Science: Materials International Vol 22(2) (2012), p. 139
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