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This paper introduces the main concept of battery charging of an electric vehicle, and studies the working principle and hardware scheme of an intelligent charging system, and researches the material performance.
Material Performance (1) Environmental conditions: Working temperature: -20℃～+50℃; Relative humidity: 5% ~ 95%;Altitude: ≤ 1000m; When people use it in the special areas, we assign the parameters on order according to local environmental conditions
Acknowledgement This research is carried out with the support of the science and technology project of xuchang city(2119), which the authors gratefully acknowledge.
Raj: International Journal of Emerging Science and Engineering(2012), p.11 [5] M.

After carrying out a serious experiments, it’s believed thickness affect lifespan of focal materials to some extent.
So we can conclude that the thicker the focal materials get, the easier it would crack, and when the thinner the focal materials get, the easier it would bend.
When designing thickness of these materials we should depend on various conditions and select a optimal value.
From the simulation of thermal stress, we conclude that the thicker the focal materials get, the easier it would crack, and when the thinner the focal materials get, the easier it would bend.
Tan: Journal of Engineering Thermo Physics Vol. 27(3), p. 484 [4] Y.

Materials with high thermal conductivity were not considered.
Shtansky, Self-propagating high temperature synthesis of advanced materials and coatings, International Materials Reviews, 62(4) (2017) 203-239
Mukasyan, Combustion synthesis and nanomaterials, Current Opinion in Solid State and Materials Science, 12 (2008) 44–50
Fire and explosion hazard of substances and materials.
Xiao, Effects of sample width and inclined angle on flame spread across expanded polystyrene surface in plateau and plain environments, Journal of Thermoplastic Composite Materials 28(1) (2015) 111–127

Already developed technologies for surface modification [4] and doping technology welds materials with SME to improve functional and mechanical properties of materials [5,6].
[2] Shape memory materials Edited by Otsuka K., Wayman C.M.
[3] Materials with shape memory effects.
Chaevsky, Superficial modifying by materials with effect of memory of the form.
Problems of Materials Science. (2007), № 3. pp.118-125

Synthesis and Characterizing of High Aspect Ratio Silver Nanowires by Polyol Process Tianrui Chen1, Haifeng Wang2, Hui Yang1, Xingzhong Guo1,a 1School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, P.R.
The silver nanowires with good morphology and high length-diameter ratio are adjustable, which is suitable for the preparation of OLED transparent film electrode materials, and other conductive materials.
Experimental Chemicals and materials.
Cheng, One step synthesis of silver nanowires used in preparation of conductive silver paste, Journal of Materials Science: Materials in Electronics. 25(2014)2929-2933
Journal of Materials Science-Materials In Electronics. 28(2017)7686-7691

Materials and Research Methods For research, we used steelmaking slag (SS) of PJSC Novolipetsk Metallurgical Plant "NLMK" (PJSC NLMK).
Piraimathi: submitted to Global Journal of Engineering Science And Researches (2017) [6] I.I.
Petrovnina, Modification of the cement stone active silm of urban treatment facilities, IOP Conference Series: Materials Science and Engineering.
Falah Saraireh: submitted to American Journal of Applied Sciences (2014) [13] K.V.
Telford, Alternative Materials in Road Construction, 1st Edn., London, 1995.

To predict the intermodulation performance of an integrated optical spectrum analyser, due to the acousto-optic interaction, Uchida and Niizeki, on the other hand, analysed a Bragg-regime acousto-optic interaction involving a plane optical wave and developed the espression of eqn.1[3] ro present the relationship between the relative diffracted-light intensity and the relative acoustic-signal power: (1) Where W= diffracted-light intensity;W0=incident light-beam intensity;=a reference acoustic power density; L=acoustic beamwidth; free-space optical wavelength; TS=acoustic power density; M2=figure of merit of the material Fig.1 shows a plot of eqn.1 from which it is obvious that it is a nonlinear equation and, therefore, can be used to predict the output nonlinear products resulting from a single-frequency sine-wave acoustic input.Moreover, it is well established in RF techniques that the single-carrier input/output characteristic
Acknowledgments This work was financially supported by the Hebei science and technology research item (No:12201708D) and the .Hebei Normal University Key foundation (No.L2009Z10) References [1] Alexei V.Zakharov, Vitaly B.Voloshinov, Erik Blomme.Intermediate and Bragg acousto-optic interaction in elastically anisotropic medium.
Optik - International Journal for Light and Electron Optics, 2007, 118(11): 544–546
Acousto-optic deflection materials and techniques.
Optik - International Journal for Light and Electron Optics, 2012, 123(7): 617–620 [6] Vladimir I.Balakshya,Bogumil B.J.

Xu: Journal of Huazhong University of Science and Technology (Natural Science Edition) Vol. 35 (2007) p. 31 (In Chinese)
Wu: Journal of Building Materials Vol. 8 (2005) p. 250(In Chinese)
Xu: China Civil Engineering Journal Vol. 46(2013) p. 29(In Chinese)
Zhou: Journal of Wuhan University of Technology Vol. 31(2009) p. 5(In Chinese)
Huang: Journal of Dalian University of Technology Vol. 45 (2005) p. 422(In Chinese).

Zhao et al. used SVM for geo-material parameters back analysis[1].
Acknowledgements The authors appreciate the support of the National Natural Science Foundation of China (Nos. 51179175 and 51008285), the Plan For Scientific Innovation Talent of Henan Province（No:124200510020）, and the science and technology research project of Education Department of Henan province（No:13B580377） References [1] Zhao Hongbo, Feng Xiating.
Chinese Journal of Rock Mechanics and Engineering, 2003, 22(10): 1618-1622
Chinese Journal of Rock Mechanics and Engineering, 2005, 24 (22): 4134-4138 [3] Liu Kaiyun, Qiao Chunsheng, Liu Baoguo.
Chinese Journal of Rock Mechanics and Engineering, 2007, 26(6): 1164-1172 [4] VAPNIK V.

But surface modification of inorganic powders with organic could be changed the dispersion in organic solvents and the organic-inorganic composite nanoparticles is causing much interesting in science and industry, Norio Nakayama prepared the TiO2 which were modified by a two-step modification using both propionic acid and n-hexylamine, and it was well dispersed in the organic solvent[4].
Journal of Sol-Gel Science and Technology. 5(2) (1995), p. 101-114
Chemistry of Materials. 6(7) (1994), p. 890-898
Journal of Sol-Gel Science and Technology. 28(2) (2003), p. 205-215
Journal of Non-crystalline solids. 89(1-2) (1987), p. 206-216