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Such a terrain condition helps accumulate water flow and solid materials.
Water is not only a part of the debris flow, but also the basic dynamics of carrying the materials of debris flow.
The thickness of loose materials is on average: 0.2 m rushing out of the volume of 4800 m³.
In Chinese [4] huijun Liu, guanming Ren: Journal of Mountain Science.
In Chinese [7] Tao Yang, ronggui Deng, and Xiaoli Liu: Journal of Mountain Science, Vol. 20(2002). pp. 456-460.

This modification stretches the life span of material by providing physical, mechanical, and corrosion improving against the parent materials [14, 15].
Materials Selection in Mechanical Design, 1, (2011). 1–464
Journal of Materials Science, 53(21), (2018) 14885-14906
Journal of Engineering Science and Technology, 7(4), (2012) 517–518
Journal of Materials Science and Technology, 22(4), (2006) 514-518

To shed light on the principle of flaw-insensitivity in non-hierarchical materials, explorations into the stress state of B-and-M materials is carried out.
Seki, Biological materials: Structure and mechanical properties, Progress in Materials Science 53(2008),1-206
Yao, Flaw tolerant nanostructures of biological materials, In: W.
Gao, Application of fracture mechanics concepts to hierarchical biomechanics of bone and bone-like materials, International Journal of Fracture 138(2006),101-137
Khoo, Analytical solutions of the displacement and stress fields of the nanocomposite structure of biological materials, Composites Science and Technology 71(2011),1190-1195

Introduction The composite grid stiffened structure is made up of rib and supporting shell; its material is compounded from continuous fiber and organic materials.
Fig.2 (b) The two order frequency of different slotting sizes and materials.
Fig.2 (a) The one order frequency of different slotting sizes and materials.
Journal of Aircraft, 1998, 35(3):478-486
Journal of Aircraft, 1985, 22: 249-255

One of the most attractive characteristics of nonwoven materials is that they can form stable structures even at very low solid volume fractions which are an essential requirement for the porous media used in many applications such as sound absorption materials.
In the present research, a SZZB type wave tube was used to measure the normal incidence absorption coefficients of acoustical materials.
Needling intensity of non-woven materials, thickness, intensity and porosity has a significant impact on sound absorption.
Kao: Journal of Materials Processing TechnologyThe Seventh Asia Pacific Conference on Materials Processing (7th APCMP 2006).
Forum Vol. 192-193(2007), p. 543-548 [5] Jung, K, et al: Journal of Membrane Science, Vol. 361(2010), p. 63-70 [6] Ren, X, et al: Water Research, Vol. 44(2010), p. 751-760 [7] Palmeira, E.M, E.A.

Materials and Methods Materials and Cchemicals.Fresh grass carp scales were from a local general market.
Biochemical Engineering Journal.Vol. 49 (2010), p. 126 [2] B.Basu and A.K.
Journal of Scientific & Industrial Research.
International Journal of Biological Macromolecules.
Journal of Food Biochemistry.

Materials and methods Materials.
Life Sciences.
International Journal of Pharmaceutics.
International Journal of Pharmaceutics.
Journal of Controlled Release.

China a renshengle@hrbust.edu.cn, bnc_mach@hit.edu.cn Keywords: Tension, Fuzzy control, Fiber Winding, Air cylinder, Alternating numeric servo-electromotor Abstract: Winding molding is a commonly-used molding method for composite fiber materials.
Acknowledgements The research is supported by National Science Foundation of Heilongjiang Province (ZJG2007-02-02), Program for New Century Excellent Talents in Heilongjiang Provincial University (1153-NCET-005) and National Science Youth Foundation of Heilongjiang Province(QC2009C50).
Journal of Harbin Institute of Technology. (2) (1988),p. 89~95(In Chinese) [2] Kee-hyun Shin, Jeung-In Jang, Hyun-kyoo Kang, Seung-Ho Song.
Fiber composite materials. (2) (2002), p. 27~28(In Chinese) [9] XuDong-liang, Wuyao-Chu,Liuxue-Hong,Tianhui-fang.
Journal of Wuhan University of Science and Technology.

For example it can be used for external thermal insulation wall, floor heating insulation and mine filling materials, etc.
For porous materials, thermal conductivity lambda has much to do with the density and structure [1-4].
Journal of Higher Correspondence (natural science edition), 2000, 13 (3): 32-33 [9] Peiyuan guo, Li liang.
Construction and Building Materials, 2013, 47: 1278-1291 [11] Yingquan li, Lide zhu Juli li, Etc.
Journal of Xuzhou Engineering Institute (natural science edition), 2011, (2): 1-5 [12] Chengxun wang, Jue wang.

The porosity parameter has a significant influence on the strength and performance of materials and therefore the estimation of porosity is of interest across several fields like biomedical engineering, materials engineering and civil engineering [2-5].
Many applications in the fields of material science and medicine benefit from this.
Rice, “The porosity dependence of physical properties of materials: a summary review, Key Engineering Materials, v 115, 1996, pp. 1-20 [3] K.
Pina, “Porosity measurement method by X-ray computed tomography”, Key Engineering Materials, v 409, 2009, pp. 402-405 [8] H.
Hernandez-Escobedo, “Porosity estimation method by X-ray computed tomography”, Journal of Petroleum Science and Engineering, 47 (3-4), 2005, pp. 209-217 [9] S.