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[2] G.F Xu, S.Z Mou, J.J Yang, T.N Jin, , Z.
[10] Z.T Wang, R.Z Tian: Handbook of aluminum alloy and its processing. 3rd ed (2005), Hu Nan, Changsha
[12] S.H Wang, L.G Meng, S.J Yang, Microstructure of Al-Zn-Mg-Cu-Zr-0.5Er alloy under as-cast and homogenization conditions, Transactions of Nonferrous Metal society of China, 1449-1454(2011), 21

Yang and J.H.
Tian: Synthetic Resine, Vol. 17(2008), p. 18 [9] Y.H.
Yang: Bonding, Vol. 16(1995), p. 9 [11] G.B.

[3] Yang T, Yu Y Z, Zhu L S, et al.
[10] Wu Zhanpeng, Wu Dezhen, Yang Wantai, et al.
[11] Bu W B, Yin J H, Tian F Q, et al.

Wiggenhauser: NDT&E international Vol. 31 (1998), p. 43-47 [4] Mingge Ma: Yellow River Vol. 4 (1993), p. 14-16 [5] Daofu Yang: Journal of Irrigation and Drainage Vol. 8 (2005), p. 23-26 [6] Yanhong Gao: Yellow River Vol. 6 (1995), p. 28-29 [7] Shuangyin Cao, Hongxing Qiu and Henghua Wang: Structural Reliability Evaluation and Reinforce Technique (China Water Power Press, Beijing 2002) [8] Zhaosheng Luo: Yellow River Vol. 5 (1993), p. 26-27 [9] Jinghui Zheng: Water Resources and Hydropower Engineering Vol. 11 (1992), p. 41-42 [10] Xinmiao Wu and Zhihong Qie: Haihe Water Resources Vol. 2 (1998), p. 21-22 [11] Hongshu Lou: Hunan Hydro & Power Vol. 5 (2000), p. 34-36 [12] Yongtao Zhu and Yang Yu: South-to-North Water Transfers and Water Science & Technology Vol. 2 (2002), p. 37-39 [13] Yongheng Peng and Fengli Song: Journal of Dalian Nationalities University Vol. 3 (2003), p. 52-54 [14] Feng Yao and Liekui Liao: Railway Quality Control Vol. 1 (2002), p. 34-35 [15]Dongzi Yao, Guang
Vapnik: The nature of statistical learning theory (Springer, New York 1995) [22] Nello C., John S.T.: An introduction to support vector machines and other kernel-based learning methods (Cambridge university press, London 2000) [23] Naiyang Deng and Yingjie Tian: Support Vector Machine theory, algorithm and expand (Science Press, Beijing 2009) [24] Ruiming Fang: Support Vector Machine theory and application analysis (China Electric Power Press, Beijing 2007) [25] Ganyun Lv, Haozhong Cheng, Lixin Dong, etc.: Proceedings of the Chinese Society of Universities Vol. 17 (2005), p. 19-22

Yang, C.
Tian, M.
Yang, C.

The majority of clean energy have the characteristics of randomness, strong intermittent power, weak adjust ability and so on, therefore, the access of clean power will result in a series of problems, for example, it will result in voltage level fluctuations, and cause the transmission power limit to be exceeded, and increase the system short circuit capacity and change the system transient stability[[] Ji Yang,Ai Qian,Xie Da.Clean energy grid connected technology based on smart grid[J].low-voltage apparatus,2010,1(4):20-25,51. ].
In addition, if the power electronic control device of wind turbine is improperly designed, the harmonic currents will inject to the grid, cause the unacceptable distortion of voltage waveform, and may lead to potential problems caused by the resonance[[] Gao Yang,Ou Yangqun,Guan Huimin.Summary on Wind Integration to the Power System[J].Northeast Electric Power Technology,2010,(2):14-17. ].
If the wind farm is regarded as a negative load, it will be unpredictable, if the wind farm is regarded as a power source, its effectiveness cannot be guaranteed[[] Tian Hong,Chen Xinglong,Wang Lei,et al.Analysis of the impact of external cost of power grid enterprises after wind power integrates with the power grid[J].Financial Perspective,2010,6:131-132. ].

[3] Tian Feng, Yang Zhen.
[7] LI Yi-bing, YANG Rui, GAO Zhen-guo.

Tian and X.L.
Yang: Journal of Agricultural, Biotechnology&Ecology, Vol. 3 (2010), p.252-262 [7] X.F.
Yang, Z.X.

Yang, L.
Tian, R.
Yang, n.

Tian, W.
Yang, Investigation the effects of nano golds on the fluorescence properties of the sectorial poly(amidoamine) (PAMAM) dendrimers.
Yang, X.