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In 1992, Zhou and Vincent [2] proposed two types of fretting graph theory in a large number of different materials and test parameters, including the operating conditions fretting map and material response fretting map, and revealed the mechanism of fretting and damage laws essentially.
Material Response Fretting Map.
Aluminum because of its high strength and low density and become the major aircraft structural materials, but because of the geographical environment of aircraft, corrosion is very serious.
Science Press, 2002 [6] Shizhuo Li, Xianglin Dong.
Material erosion and fretting.

Introduction Concrete is the most widely used construction materials, which is a kind of composite materials composed of cement, sand and gravel[1].
Material and experimental method Material and mix proportion (1) Cement Lafarge Rui’an Reference Cement was used in these experiments, which were produced by Beijing Xingfa cement co., LTD.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50878099), the western China communications science & technology program of Ministry of transport (200631822302-6 and 200831822367).
Factors influencing concrete strength [J].Journal of American Concrete Insitute, 1951,47(6):417-432
The New Concrete [M].Beijing: China Building Materials Press, 2008

Sharma, Engineering materials: properties and applications of metal and alloys, 2004, ISBN: 978-81-203-2448-0 [3] M.
Material.
Science Engineering, vol. 28 (2012) 012-042
Materials Science and Engineering: A, 302 (2001) 115-119
Dybowski, Vacuum carburizing—process optimization, Journal of Materials Processing Technology, 164–165 ( 2005) 876-881

Elastic material properties are assumed.
Both elastic material properties and geometric linearity are assumed.
Munson, Applications and algorithms for mixed integer nonlinear programming, Journal of Physics: Conference Series. 180 (2009) 012014
Tin-Loi, Limit analysis of elastoplastic frames considering 2nd-order geometric nonlinearity and displacement constraints, International Journal of Mechanical Sciences. 51 (2009) 179-191
Ferris, MATLAB and GAMS: interfacing optimization and visualization software, Report TR98-19, Computer Sciences Department, University of Wisconsin, Madison, 1998.

Experimental 2.1 Samples(Materials) The zinc acid-leaching residue(ZALR) used for all experiments was offered by Henan Yuguang Zinc Industry Co., Ltd, Jiyuan, Henan Province, China.
Science Press, Beijing, 2005
China Environmental Science, 2006,26(5). 603-608
Journal of Hazardous Materials, 2008(152): 607-615
The Chinese Journal of Process Engineering, 2011(01). 56-61

This includes assessment of ecotoxicological risks related to the depositing of dredged materials on soil and assessment of ecological risks of sediments dredged from ports and estuarine zones [7, 13].
Zulkifli, The Application of Driving Force-Pressure-State-Impact-Response (DPSIR) in Malaysia’s Dredging Industry, Journal of food, agriculture and environment. 3 & 4 (2012)
Montuelle, Assessment of Ecotoxicological Risks Related to Depositing Dredged Materials from Canals in Northern France on Soil, Environ.Int. 32 (2006), pp. 804-814
Ram, Adsorption of Metal Ions on Bed Sediments / Adsorption d'Ions Métalliques Sur Les Sédiments De Fond, Hydrological Sciences Journal. 42 (1997), pp. 713
Sequi, Retention and Mobility of Chemicals in Soil, in Developments in Soil Science Vol.

Henshaw, “A Comparative Study of Soya Bean Oil and Palm Kernel Oil as Alternative to Transformer Oil, ” Journal of Emerging Trends in Engineering and Applied Sciences, (JETEAS 3(1): 33-37, 2012 [3] Vishal, Saurabh, Vikas, Prashant, “Transformer’s History and its Insulating Oil, ” 5th National Conference India Com2011 (March. 2011
[11] Aditama, S., "Dielectric properties of palm oils as liquid insulating materials: effects of fat content," Electrical Insulating Materials, 2005.
Jarial, "Experimental Evaluation of Water Content In Transformer Oil," International Journal of Innovative Research in Science, Engineering and Technology , vol 2, Issue 1, January 2013

The application of genetic algorithm backpropagation neural network model on the prediction and optimization of wastewater treatment system Fuquan Jia1,2,a, Zhangwei He3,b , Zhujun Tian1,c,*, Zhaobo Chen 4,d, Hongcheng Wang5,e, Yimeng Chen3,f, Baojun Jiang1,2,g 1 Songliao Institute of Water Enveironmental Science, Changchun, 130021, China 2 Jilin Jianzhu University, Changchun, 130118, China 3 School of Materials Science & Chemical Engineering, Harbin engineering university, Harbin, 15001, China 4 College of Environment and Resources, Dalian Nationalities University, 18 Liaohe West Road, Dalian 116600, China 5 The Fifth Electronic Research Institute of MIIT, Guangzhou, 510610, China a 249404875@qq.com, b 383088620@qq.com, c tzj@slwr.gov.cn, d czbhdx@163.com e 562332623@qq.com, f 280594217@qq.com, g 67958971@qq.com Keywords: genetic algorithm backpropagation neural network model (GA-BPNN), prediction, optimization, local minimum point Abstract: Prediction and optimization on
Materials and methods 1.1 Data preprocessing model Data normalization was essential to improve the training speed of the neural network model.
Vol. 11 (2004), p. 46-48 [2]　Yanhua Yin, Chunfang Wang, Mingyang Yan: Chinese Journal of Explosives & Propellants.
Le Cloirec: Journal of Environmental Engineering.

Materials and methods Materials Pichia pastoris carrying the rhbFGF gene were constructed by our lab.
Acknowledgements This work was supported by two national key technology R&D programs (No. 2011BAI03B01 and No. 2012BAI29B05), national science and technology major project (No. 2010ZX09401-305-02).
Journal of Chromatography B, 737 (2000) 25-38
Procedia Food Science. 1 (2011) 1547-1552
Journal of Jilin University (Medicine Edition). 5 (2008) 234-248.

Preparation of test material.
Acknowledgements This work was supported by the Science and Technology Project of the Shenyang city, Liaoning, China (F11-264-1-72 and F12-006-2-00).
Effect of grafting cellulose acetate and methylmethacrylate as compatibilizer onto NBR/SBR blends［J］．Materials and Design 2010，31:2592–2598
(In Chinese) [7] Wang Shijie, Lv shangshang,Li Qin.Analysis of design and application technology for progressing cavity pump system[J].Journal of Shenyang University of Technolgy, 2005, 27(2):121- 125.
Yang, Journal of Lanzhou University (Natural Sciences).