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China 2 Electromechanics and Materials Engineering College, Dalian Maritime University, Dalian 116026, P.R.
Journal of the Mechanics and Physics of Solids, 1960, 8: 100-104 [2] Barenblatt G I.
Crack growth and development of fracture zones in plain concrete and similar materials.
Division of Building Materials, Lund Institute of Technology, Report TVBM-1006, Sweden, 1981 [5] Reinhardt H W , Xu Shilang.
International Journal of Fracture. 1999, 98(2): 111-149

As a result, the heat transfer coefficients of materials become complex and unstable.
Advanced Materials Research, vol. 935, Trans Tech Publications, Ltd., May 2014, pp. 61–65.
Advanced Materials Research, vol. 608–609, Trans Tech Publications, Ltd., Dec. 2012, pp. 42–45.
Journal of King Saud University – Science 31 (2019) 143–149.doi.org/10.1016/j.jksus.2017.06.002
Master’s thesis in materials physics from the University of Mohamed El Bachir El Ibrahimi – Bordj Bou Arreridj.

Acknowledgements This work was financially supported by the Natural Science Key Project in Ningxia University(NDZR10-5), the Natural Science Key Project in Ningxia (NZ1158), and the Ningxia Higher School Science and Technology Research Project.
(in Chinese) [3] Xu Junlan,Xiang Zhongfu.Discussing gravity stiffness of suspension bridges[J].Journal of Chongqing Jiaotong Institute,2000,19(2):71―74.
Advanced Materials Research, Vol.255-260, p 1039-1042.(2011) [5] Jimsing N J.Cable supported bridges—Concept & Design.England:John Wiley& Sons,1997.

Analysis of Deformation of Reflector for RF-Excited CO2 Laser Yan Zhang1,a,Weike An1,b,Yong Zhou1,c,Jingyin Tan1,d 1College of Mechanic Engineering,Hunan institute of science and technology,Yueyang 414006 abeautyhall2002@yahoo.com.cn,banweike12@163.com,cquanyzhou@21cn.com,djyt@163.com Keywords: Reflector, ANSYS, Thermal deformation Abstract.
The material of reflector is copper.
According to related handbook, the material attribute of copper are as follows: the density is 8940kg/m3, the elastic modulus is 1.1661011Pa, the Poisson ratio is 0.35, the linear expansion coefficient18.310-6K-1, the thermal conductivity is 391W/m·K, the heat capacity is 385J/kg·K.
Journal of Chongqing University of Science and Technology:Natural Science Edition, (2008)122-123

Once there is a breakdown in a complex hydraulic system, it will consume manpower and material resources because of cumbersome investigation, and the efficiency is low.
Noise can be reduced by using more insulation materials.
Acknowledgements This work is supported in part by NSFC (Nos. 50975020), Beijing Municipal Commission of Education’s Science and Technology Project(KM201010772002).
Uncertainty Analysis of System Reliability Estimate Based on Fault Tree, Journal of Tongji University(Natural Science), 2010, 38(1), pp.141-145
Fault Tree Analysis on Hydraulic System of Combine Harvester, Journal of Agricultural Mechanization Research, 2006(10), pp.62-74

Experimental materials and methods Materials The soil was taken from Tongzhou experimental field site of Beijing Hydraulic Research Institute, and sand accounting for 98.39%, clay accounting for 1.61%.
Korean Journal of Chemical Engineering.
Environmental Science & Technology.
Journal of Agro-Environment Science.Vol.23(2004),p. 475-478(in Chinese) [11] Wei He，Honghan Chen，Fei Liu, et al.Soil vapor extraction for removing gasoline hydrocarbons in a soil column.
Environmental Science.

Materials and Methods Materials.
Journal of Agriculture and Food Chemistry 24 (2): 359-365
Peanut Science and Technology.
Journal of Food Science, 60, 305–311
Journal of Food Science, 60, 300–304

China Soft Science. 1 (2006) 108-116.
Journal of Management Science in China. 7 (2010) 43-44.
Journal of Tianjin University (Social Sciences). 15 (2013) 502-506.
Journal of Cleaner Production. 5 (1997) 79-86. ].
In Chinese. ].Costs must be made when the enterprises in Logistics Park (symbiotic units) are exchanging their information, materials and energies.

Holding Strength of Bond to Diamond Grain within Vitrified Abrasives Li Zhengxin 1,2,a , Zhang Rui1, b ,Yang Xuefeng2 and Deng Xiangrong2 1School of Materials Science and Engineering of Zhengzhou University,Zhengzhou 450001,China 2School of Materials Science and Engineering of Henan University of Technology, Zhengzhou 450007,China aZhengxin_li@haut.edu.cn, bzhangray@zzu.edu.cn Keywords: Holding strength, Test method, Vitrified Abrasives, Diamond, Abstract.
Whether the chemical bonds generate depends on the diamond grains surface condition and which kind of elements or compounds involve in the adhesive materials.
The second way is that external force overcoming the both binding force on the interface of two materials and the mechanical enwrapping force, shown in Fig. 2.
Wang: Materials Science & Engineering.
Hong: Journal of Huaqiao University (Natural science), Vol. 15(1994), p.353.

Evaluation of mechanical properties and microstructures of casing-drilling steels Tianhan Xu1,2,a, Yaorong Feng3,b, ShengYin Song3,c, Zhihao Jin2,d 1Shool of Materials Science and Engineering, X’an JIaotong University, Xi’an 710049, China 2Shool of Materials Science and Engineering, Xi’an Shiyou University, Xi’an 710065, China 3Tubular Goods Research Center of CNPC, Xi’an 710065, China axutianhan@xsyu.edu.cn, bfengyr@tgrc.org, csongsy@ tgrc.org, dzhjin@mail.xjtu.edu.cn Keywords: Casing-drilling steel, Microstructure; tensile properties; impact toughness.
Materials Science and Engineering A, Vol. 492 (2008) P. 45 [5] A.
Materials Science and Engineering A, Vol. 483 (2008) P. 325 [6] C.
Teng, Journal of Nuclear Materials, Vol. 340 (2005), P. 1 [7] X.Z.
Abdollah-zadeh., Materials Characterization, Vol. 59(2008), P. 484