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Acknowledgements This work was financially supported by the Liaoning University of Technology Natural Science Foundation (X201202).
Han: Journal of Vibration Engineering Vol. 25 (2012), p. 289 (In Chinese) [3] H.Q.
Song: Applied Mechanics and Materials Vol. 141 (2012), p. 129 [5] H.Q.
Zhang: Advanced Materials Research Vol. 305 (2011), p. 192 [6] M.P.
Delor: Journal of Engineering for Gas Turbines and Power Vol. 123 (2001), p. 395

Radar signals are reflected especially well by materials of considerable electrical conductivity—especially by most buried metal objects and imperfection inside the structure.
For normal incidence the reflection coefficient, R, is given by the following: (1) where Z2=specific acoustic impedance of material 2 and Z1=specific acoustic impedance of material 1.
The reflection coefficient given by Eq. (1) can be negative or positive depending on the relative values of the acoustic impedances of the two materials.
Acknowledgements The writers gratefully acknowledge the financial support from National Natural Science Fund of China under the Project No. 50978258.
[6] Ru Ruidian, “Study on Application of GPR Technique”, Journal of Engineering Geology, 1996．6(4)：51-56

Research and Application in Ecological Revetment of the Mountain River Rui Liu1, a, Errui Peng2,b, Qiang Fan2,c 1Resources and Environmental Sciences, Yunnan Agricultural University, Kunming, Yunnan, China 2Hydraulic Engineering, Yunnan Agricultural University, Kunming, Yunnan, China a348413295@qq.com, b1750272433@qq.com, cyaorao1988@163.com Keywords: ecological revetment, chain-typed concrete, sash concrete, sustainable development Abstract: According to the characteristics of the mountain river, we explore new methods of river ecological studies in mountain revetment application.
As the existing river training measures based mainly on engineering, it makes the linear shape of the river, the rules section of the river, revetment material hardening of the river.
It has formed the ecological revetment structure type, ecological revetment materials, eco-system architecture, configuration and the interaction with water plants multiple research areas.
Journal of Nanjing Forestry University (JCR Science Edition), 2008, 32(1):103-106
Journal of Hydraulic Engineering, 2012, 43(006): 726-733

It is a new technological method for expanding holes in hard metal materials parts.
Conclusions 1) This is an effective method that hole expanding by spiral-fluted electrode used in machining hard metal material guide hole.
Acknowledgment Project is supported by the Key Science and Technology Project of Sichuan Province (No. 2008GZ0063) References [1] Y.
Hewidy: Journal of Materials Processing Technology, Vol. 160 (2005), p. 348-353 [3] H.Y.
Zhou: Transactions of the Chinese Society of Agricultural Machinery, Vol. 36 (2005), p. 145-148 [5] Tsuneo Kurita and Mitsuro Hattori: International Journal of Machine Tools and Manufacture, Vol. 46 (2006), p. 1804-1810 [6] J.C.

Approximate data on the consumption of materials by the plant are given in table 2.
Fan, Refinement of primary silicon crystals by novel P-Doped γ-Al2O3 particles in solidification of hypereutectic Al-Si alloys, Materials Science Forum. 877 (2016) 550-557
Prasad, The impact of rising Ni and V impurity levels in smelter grade aluminium and potential control strategies, Materials Science Forum. 630 (2009) 129-136
Tang, Effect of vanadium carbide on commercial pure aluminum, International Journal of Minerals Metallurgy and Materials. 24 (2017) 833-841
Analysis of VB2 formation, Metallurgical and Materials Transactions B. 45 (2014) 752-768

Research on the Interlayer Stress and Warpage Deformation in FDM PENG Anhua （Engineering Training Center Huaihai Institute of Technology Lianyungang China 222005） pah7301@126.com Keywords: Fused Deposition modeling (FDM); Warpage deformation; Interlayer stress; Process parameters Abstracts: Fused deposition modeling (FDM), a representative prototyping technology with no use of toxic materials, has been widely used in offices.
M., et al: International Journal of Advanced Manufacturing Technology, Vol.33 (2007), pp.1087-1096
(In Chinese) [3] ZHAO Wanhua: Chinese Journal of Mechanical Engineering, Vol.38 (2002), pp.47-51.
(In Chinese) [4] ZHANG Liucheng: Basics of Polymer Materials, 2002.
(In Chinese) [5] MOSTAFA Nikzad, SYED Hasan Masood: Tsinghua Science and Technology, Vol.14 (2009), pp.29-37

Materials and Method of Experiment Alloys with the composition Fe-28at.
Song: Materials for Mechanical Engineering, Vol. 29 (2005)No.7, p.27 (In Chinese) [3] Y.D.
Mao: Chinese Journal of Materials Research, Vol.10 (1996) No.6, p.620 (In Chinese) [5] L.
Zhang: Journal of Materials Science, Vol.33 (1998) No.6, p.1481 [6] Y.Sh.
Ye: Chinese Journal of Materials Research, Vol.10 (1996) No.4, p.351 (In Chinese) [13] G.

Effects of Heat Treatment on Mechanical Properties of Ni-P-CNT Composite Coating Qin Shi a, Wanchang Sun b*, Jun Gao, Ying Wang and Miaomiao Tian College of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi 710054, China aFairy-sq@163.com, b*sunwanchang@tsinghua.org.cn Keywords: Ni-P-CNT composite coating, Heat treatment, Microhardness, Friction and wear properties.
Materials Protection, 43(2010)11
Nano-materials and Nano-structure-New Progress in National Key Basic Research Projects.
Journal of Heilongjiang Institute of Science＆Technology, 20(2010):1-6
Materials Research Bulletin Vol. 40(2005):1000-1009

Superhydrophobic surfaces can be achieved by a combination of low surface energy materials, and surface micro and nanostructures.
However, most of the chemicals materials used for hydrophobisation are nonbiodegradable, expensive and potentially harmful to human health and the environment which limits their potential applications [10].
-L Su, Journal of Colloid and Interface Science 353 (2010), p. 335
Schollmeyer, Journal of Adhesion Science and Technology 22 (2008), p.285
Megaridis, Applied materials and letters, 2 (2010), p.1114

Introduction As a new structural materials with low density, high specific strength and fracture toughness and strong ability of anti-fatigue failure superior overall performance, titanium alloy is mainly used in the manufacture of aerospace and other key areas of components.
Effect of surface treatments on the fatigue life of titanium for biomedical applications[J].Journal of the Mechanical Behavior of Biomedical Materials, 2003,3(6):416-424
Investigation of laser shock peening effects on residual stress state and fatigue performance of titanium alloys[J].Materials Science and Engineering,A,2012,536:82-91
Laser shock peening of Ti-17 titanium alloy: influence of process parameters[J].Materials Science and Engineering, A ,2012,532:362-372
Coupled thermo-mechanical model and numerical simulation of pre-Stress hard cutting [J].Journal of South China University of Technology,2008,36(4):18-22