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Based on the twin shear unified strength theory, when the influence of intermediate principal stressand SD effect of materials are considered, the study on low-frequency cyclic lateral loading experiment of wall is proceed and the practical formula for the wall’s initial cracking load is deduced.
Other material parameters are shown in Table 1 .
Journal of Vibration and Shock, 28(7), 187-191.
Chinese Science Bulletin, 37:64, 2085-2089.
Journal of Vibration and Shock, 26(3), 49-54.

Step two-constitutive model and actual material parameters are chosen with corresponding to slope mass material.
Earth Science Frontiers, 2007, 14(6): 73-84.
Chinese Journal of Geotechnical Engineering, 2002,24(3): 343-346.
Engineering Science，2002，4(10)：57-61.
Chinese Journal of Geotechnical Engineering, 2007, 29(8): 1159-1171.

The material is widely used in thermal insulation materials, catalysis, environmental protection, optics, electricity, and other fields [4].
Chlorotrimethylsilane is a common SiO2 aerogel hydrophobic modifier [7] and it is an effective method using ultrasound technology to prepare nano-materials [8].
Wang: Materials Letters. (2006) 60: 3718–3722 [2] J.J.
Kim: Applied Surface Science. (2007) 254: 574–579 [6] B.
Ni: Materials Science and Engineering C. (2007) 27: 1291–1294 [7] H.

International Journal of Mechanical Sciences, Vol.39(1997),p.289
International Journal of Mechanical Sciences, Vol.42(2000),p.49
International Journal of Mechanical Science, Vol.39(1997),p.1199
Journal of Materials Processing Technology, Vol.184(2007),p.224
Journal of Material Processing Technology, Vol.168(2005),p.194

Jl Raya Bandung-Sumedang 2Department of Physics, Faculty of Mathematics and Natural Science, Universitas Padjadjaran.
The main constraints in the use of vegetable materials include Lemna sp. as fish feed material is the high content of crude fiber and moisture, the presence of anti-nutritional substances and different amino acid compositions from animal protein materials.
Fermentation can improve some properties of raw materials such as increasing digestibility, nutritional content, flavors and aromas that are favored by livestock, including fish [5].
The row material of Lemna sp. was collected from the Ciparanje Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran.
Nagodhawithana, Technology of yeast usage in winemaking, American Journal Enology Viticology 39 (1988) 83-85

The oilless lubrication between cylinders and the piston component is achieved by using non-metal self-lubricating materials to make piston rings and guiding rings.
The variety and formula of the self-lubricating materials play a main role in the property and use life to piston rings and guiding rings.
It is thus obvious that the use lives of piston rings have a great relationship to pv value when the materials are fixed, so the pv value is the important parameter for piston ring design.
However, work temperature which piston rings and guiding rings made by non-metal self-lubricating materials can bear is more lower that metal rings.
References [1] Peiying Peng, Baocheng Peng, Xinqi Yu, et al: Hebei Journal of Industrial Science and Technology, Vol.24 (6) (2007), p. 332-335（in Chinese） [2] Yufeng Zhu: Journal of Hebei University of Science and Technology, Vol.29 (1) (2008), p. 53-56（in Chinese） [3] Yufeng Zhu: Hebei Journal of Industrial Science and Technology, Vol.27 (1) (2010), p. 8-10（in Chinese） [4] Yufeng Zhu and Baocheng Peng: Lubrication Engineering, (6) (2006), p. 71-73（in Chinese）

Waste recycling into construction components presents an alternative solution for materials cost reduction.
Natural fiber materials offer several environmental benefits including a simple production process with low energy consumption.
Natural fibers from bamboo, coconut, vegetable, banana, and non-conventional varieties can replace asbestos in building material and provide both environmentally friendly and sustainable alternative materials from unutilized waste.
The incorporation of wood waste ash as a partial cement replacement material for making structural grade concrete: An overview, Ain Shams Engineering Journal, 6, 429-437
Sawdust ash as concrete material, Journal of Materials in Civil Engineering, 14(2), 173-176.

The concrete filled steel tubular (CFST) structure takes full advantages of the interaction of two materials in the process of loading, while the thermal performance parameters between steel tube and concrete are different, and the outside temperature changes makes the structural section produce a greater temperature gradient, which leads to the uncoordinated deformation between them.
Introduction Concrete filled steel tube (CFST) structure is a new composition of structure, the overall performances of CFST structure are superior to the simple addition of two kinds of material’ performance through the composition of these two materials, that is, the interaction of two materials is made full use in the process of loading, so such kind of composite structure is widely applied in the actual engineering [1-3].
Acknowledgments It is a project supported by the National Natural Science Foundation (No.51078298).
Venkatesh: Response of concrete-filled HSS columns in real fires, Engineering Journal, vol. 46(2009), no. 4, p. 243-256
Li: Temperature Distribution in Dumbbell Cross Section CFST Arches Due to Solar Radiation, China Railway Science, vol. 27(2006), no. 5, pp. 71-75.

Another feature is that the combustion materials are easy formed in the combustion process.
The combustion materials are not easy delaminated and can be ignored easily.
Anselmi-Tamburini: Materials Science Report, Vol. 3 (1989), p.277
[10] Tao Lin, Shiju Guo, Sheng Yin, et al: Journal of University of Science and Technology Beijing, Vol. 9 (2002), p.221(In Chinese)
[12] Guibo Yu, Weu Yau, Shuhai Wang, et al: Journal of University of Science and Technology Beijing, Vol. 13(2006), p.178(In Chinese).

Materials Science Forum, 2007, 546-549
Materials Science and Engineering A, 2010, 527: 7510−7518
Materials Science and Engineering A, 2009, 516: 42−49
Materials Science and Engineering A, 2010, 527: 1806−1814
Materials Science Forum, 2014, (794-796):199-204.