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The material of gear is 20CrMoTi [1-2] with the ultimate strength of 1100MPa, the yield limit of 850MPa.
Gear materials attribute parameters are elastic modulus 2E11Pa, Poisson's ratio of 0.3, and density of 7850kg/m ³.
Journal of Hot Working Technology (1988)6, in Chinese
Science in China Series E: Technological Sciences (2009), in Chinese
Journal of Mechanical Science and Technology, 26(2) (2012)575-589

Experimental Materials and Methods Equipments.
Materials.
Acknowledgments This research was funded by Natural Science Fund of Heilongjiang Province (RD: E200824).
References: [1] Yin Jun, Chen Yingxu: Membrane fouling in membrane bioreactors, Journal of Techniques and Equipment for Environmental Pollution Control, 2(2001), P. 62-67 [2] Yuan Yuan: Study on Anaerobic/anoxic/aerobic membrane bioreactor for treatment of coke plant wastewater (Dissertation, Beijing Jiaotong University, 2008, 11 [3] Xing Guangen, Cui Mingwen: The method of treating the coking wastewater, Journal of Hengshui University, 1(2007), P. 104-106 [4] Gao Yuxue, Wen Yibo: Anoxic/aerobic membrane bioreactor for high- loading ammonia nitrogen wastewater treatment, Journal of Membrane Science and Technology, 28(2008), P. 40-43 [5] Song Zhiwei, Yang Fan, Zhao Nannan: Influences of MLSS on membrane bioreactor, Journal of Heilongjiang Institute of Science and Technology, 16(2006), P. 209-212 [6] Song Zhiwei, Yang Fan, Zhang Furong: Study on influence of adding flocculants on effect of membrane bioreactor, Journal of Liaoning Technical University (Natural Science) , 28(2009), P.
1-5 [7] Pei Liang, Cheng Zhongshan, Zhang Xueting: Application of the integrative membrane bioreactor for treatment of coking-making wastewater, Journal of Water Resources and Water Engineering, 17(2006), P. 88-90 [8] Xin Hongjie, Bu Qingwei: Research Advances in Membrane Pollution Control in Membrane Bioreactor , Journal of Pollution Control Technolog, 22(2009), P. 70-73 [9] Editorial Board of National Environmental Protection Agency: Method for Detection of Water and Wastewater, Published by China Environmental Science Press, Beijing 1998 [10] Song Zhiwei, Zhang Furong, Zhang Hairun: Experimental study on influence of adding nanomaterial on membrane bioreactor, Journal of Chinese Journal of Environmental Engineering, 2(2008), P. 1475-1478

[4] Li Gu, Zulin Hua, Kejian Chu, Xiaodong Liu: Journal of Hohai University (Natural Science Edition) 39 (2011)475.
[5] Yueqin Liu,Yanchun Wang: Journal of South China University of Technology(Natural Science Edition). 31(2003)89.
Knight: Journal of Fluid Mechanics.222 (1991)617
[14] Li Gu,Hang Yuan:Applied Mechanics and Materials.448(2014)554.
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NDT can reveal and describe defects in products and materials without interfering with their structural integrity or their future usability, service life or ability to fulfill their purpose.
Recent research indicates progress in all areas of science and technology.
In civil engineering, investors and designers constantly require better properties of building materials, especially those properties that guarantee the material’s quality.
Steel Fibre reinforced concrete, International Journal of Engineering Trends and Technology (IJETT), 9 (2014) 791 - 797
Book of abstracts, 22nd international conference on materials, and technology, 2014, Portorož, Slovenia, ISBN: 978-961-92518-7- 4

The Preparation and Photo-Thermal Property of Ag2S Nanomaterials Xiao-zhen Yuan, Hai-qing Xu, Yan Shan*, Ke-zheng Chen (College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China) Email：857011579@qq.com Key Words: Hydrothermal method, (CH2)2CS, SUDEI, PVP, Photo-Thermal Abstract.
Experimental Sections Materials.
In summary, Ag2S was prepared with AgNO3 and (CH2)2CS as raw materials, PVP was used as surfactant, had a better crystalline.
Journal of Anhui Institute of Education, 2005, 23(3): 70-72
Journal of Inorganic Chemistry, 2008, 24(5): 803-807

Demian, Researches about wear comportment of sintered parts elaborated from recovered powders, Journal of Optoelectronics and Advanced Materials; 15, 7/8; (2013) 841-846
Demian, Obtaining the optimal parameters in a laser hardening process through Taguchi method, Journal of Optoelectronics and Advanced Materials ,Volume 15, Issue 7-8, (2013) 689-695
Ghani, I.A Choudhury, H.H Hassan, Application of Taguchi method in the optimization of end milling parameters, Journal of Materials Processing Technology, Vol. 145, Issue 1, (2004) 84–92
Tarng, Design optimization of cutting parameters for turning operations based on Taguchi method, Journal of Materials Processing Technology 84, (1998) 122-129
Georgilakis, Taguchi method for the optimization of transformer cores annealing process, Journal of Optoelectronics and Advanced Materials Vol. 10, No. 5, (2008) 1169-1177

To obtain a reliable figure of thermal stress induced by grinding, temperature-dependent properties of workpiece materials were taken into account.
To obtain a reliable figure of thermal stress, temperature-dependent properties of work materials should be taken into account.
Zhang, Residual stress in ground components caused by coupled thermal and mechanical plastic deformation, Journal of Materials Processing Technology 95 (1995)238-245
Chandrasekar, Simulation of thermal stress due to grinding, International Journal of Mechanical Sciences 43 (2001)831-851
Hamdi, Hassan Zahouani, Jean-Michel Bergheau, Residual stress computation in a grinding process, Journal of Materials Processing Technol [12] ogy 147 (2004)277-285.

The laser processing has the ability for effective machining of ceramic materials because of high energy beam acting on a very small area.
Martelli, Development and characterization of nanophase Si3N4-based ceramics, Materials Science Forum 235-238 (1997) 255-260
Shin, Chapter 9.10 - Laser machining and laser-assisted machining of ceramics, in: Comprehensive Materials Processing.
Grigoriev, Method of investigation of the stress-strain state of surface layer of machine elements from a sintered nonuniform material, Applied Mechanics and Materials 486 (2014) 32-35
Ferrato, Tribological characterization of silicon carbide and carbon materials, Journal of the European Ceramic Society 35 (4) (2015) 1147-1159

Waterproof material: cementitious capillary crystalline waterproof material (CCCW) XYPEX(admixture and thinner), produced by Beijing Chengrong waterproof material Co., Ltd.
Because of the differences between materials, a limited number of specimens and some measurement errors, experimental data can approximately describe relative dynamic elastic modulus and mass loss rate of concrete specimens in simulative salt lake brine.
References [1] Fanlao Wang, Weiqin Zhang, Youkun Yang: Journal of Qinghai University (Natural Science Edition).
Vol.31, No. 5 (2003), p. 435 (In Chinese) [7] Lianxin Liu: Journal of Building Materials.
Vol.4, No. 4 (2001), p. 395(In Chinese) [8] Weiqin Zhang, Lianxin Liu, Dahu Dai: Journal of Qinghai University (Natural Science Edition).

Mathematical Model of Thermal Field for an Insulation Composite Wall In fact, the temperature field for an insulated composite wall belongs to a three-dimensional transient one .For simplification, we will employ following assumptions ① all the materials of the insulated composite wall are homogeneous and isotropic; ② thermo–mechanical parameters of all the materials are constants; ③ thermal resistance between two different materials is omitted; ④ only the temperature gradient takes place along the thick direction of the wall.
Thermo-mechanical parameters of all the materials are shown in Table.1 and Table.2. , , , , .
This is because the conductivity of the insulated material is much smaller than those of other materials.
[2] Z.L.Li, G.Gan, J.C.Tang: Journal of Zhejiang University(Engineering Science(in Chinese)(2004)
[3] W.L.Jin, J.C.Ye,D.Q.Zou, et.al: Journal of Zhejiang University(Engineering Science)(in Chinese)(2002)