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The Introduction Seedling ExperimentofFour Varieties of Poplar Liankuan Wang1, a, Peiyong Lian2, b, YunjiangFu1, c 1 Dayangshu Forestry Bureau of Inner Mongolia Dayangshu, PR China, 165456 2Daxing’anling Academy of Forestry Science of Inner Mongolia, Yakeshi, PR China, 022150 adyslyjwlk@163.com, bkeyansuolpy@163.com,c294373245@qq.com Keywords:Introduction, Survival rate, Seedlingheight, Ground diameter Abstract.
The seedling quality have all the relevant of cutting material source, cuttings quality, cutting time, soil conditions and management level, in the above conditions are relatively consistent situation, cutting density has great effect on the quality of seedlings.
Zhang: Journal of Northeast Forestry University.
[3] W.S.Cao, S.M.Zhao, S.R.Jiao: Protection Forest Science and Technology.

Causes Analysis and Treatment Measures for Excess SiO2 Content in a 300MW Unit Boiler Water Yongyan Zhou1, a, Xiaocui Guo2, b, Li Li1, c, Zhiping Zhu*2,d 1Electric Power Research Institute of Guangdong Power Grid Corporation, China, 2Changsha University of Science & Technology, China azyy23443@126.com, bshuimiaomiao521@126.com, cliligz@163.com, dzzp8389@163.com Corresponding author: Dr.
When condenser is fonud of a tiny leakage, increasing the frequency of activated charcoal filter washing and monitoring the turbidity of the condensate water can make use in controlling the suspended soilid and colloidal material content.
Acknowledgements The authors gratefully acknowledge financial support from Natural Science Foundation of Hunan province (09JJ6067), and scientific and technological R&D of Hunan province (2010GK3171).
Wang: Journal of Shanghai University of Electric Power Vol. 18 (1), P. 9 [3] Information on http://chinayzb.blog.163.com/blog/static/15565392010101285541378 [4] J.

Introduction Azithromycin is a macrolide antibiotic using erythromycin as raw material preparation, which widely used in the treatment of bacterial infections, and has become one of the widely-selling drugs home[1].
Acknowledgements This work was financially supported by the Project of Qinhuangdao 2014 science and technology research fund plan (201401A363).
Journal of Environmental Engineering.
Environmental Science and Technology.

Copper Multilayer Coating Prepared by Ultrasonic-electrodeposition CUI Ronghong 1,2,a, YU Zhiming2,b , HE Yuting 1,c and SHU Wenjun1,d 1 Engineering College, Air Force Engineering University, Xi'an, 710038, China 2 State Key Lab. for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China a crh-1982@163.com, bzmyu@imr.ac.cn, chyt666@tom.com, dswj_thesis@163.com Keywords: ultrasonic-electrodeposition; copper; multilayer coating; mechanical property; corrosion resistance Abstract.
Journal of Material Science 3383 (2008) 43 [2] M.

Chromosome as the main carrier of genetic material, therefore, the need to implement in the first place from phenotype to genotype map coding.
Beijing:Science press.2009
Beijing:Science press.2009
Journal of electrical engineering technology, 2006, 21(4): 57-61

According to the number of teeth, modulus, pressure angle, helix angle, as well as the gear material, machining accuracy and other parameters, the gear could be modeled.
Acknowledgement This paper was supported by Collaborative Innovation Center of Major Machine Manufacturing in Liaoning and National Natural Science Foundation of Liaoning, China.
References [1] Jinglong Huang, Xiexing Miao, Shanming Luo and Lifeng Chen, Influence Analysis on the Elasto Hydrodynamic Lubrication Affected by Pressure Angle of Gear , Journal of Machine Design, 23(12) 14-15
[4] Hegen Xiong, Modeling, Analysis and Application of Mechanical Transmission System Based on Romax Designer, Huazhong University of Science and Technology Press, Wuhan, 2015

Under these situations, numerical analyses have been proceeded to clarify the behavior of hydrogen diffusion in materials.
To clarify the hydrogen diffusion and concentration behavior in materials, it should be concerned with the stress field, the hydrogen flow and the change of hydrogen concentration [1,2].
The analysis of hydrogen diffusion and concentration behavior in materials is also conducted on the basis of FEM [6,7].
Yamada: Corrosion Science Vol. 44 (2002), p. 407
Shibata: Strength Fracture and Complexity An International Journal Vol. 1 (2003), p. 187

However, the economy grows with construction material increasing or driving difficulty increasing, these methods may not always improve units pile bearing capacity, especially when pile length out of critical length.
Pile and soil material properties used in the analysis are shown in Table 1.
Acknowledgements This project was financially supported by the National Science Foundation of China (No. 51008116).
Wei: Canadian Geotechnical Journal, Vol. 37 (2000), p. 56-74
Kong: Advanced Materials Research, Vols. 261-263 (2011), p. 1084-1088

Effect of Rare Earth on 30CrMnSi Steel Investment Castings Cracking Tang Zhenglian1, 2, a, Zhang Xinping1, b 1School of Material Science and Engineering, South China University of Technology, Guangzhou 510640, China 2Department of Materials Engineering, Hubei University of Automotive Technology, Shiyan 442002, China atangzhengnian@126.com, bmexzhang@scut.edu.cn Keywords: crack, rare earth, 30CrMnSi steel, investment casting, crack susceptibility evaluation Abstract.
In this study, in order to resolve the problem of high crack rate in investment castings in a production company, effect of RE on microstructure and inclusions was investigated through adjusting the material compositions.
Experimental procedure 2.1 The structure of the samples for crack susceptibility evaluation The sample used for crack sensitivity evaluation is shown in Fig.1, the analysis of the stress field is shFig.1 The crack susceptibility evaluation sample model (the unlabled radius of inner fillet is 1mm) own in Fig.2 and the thermal cracking tendency is shown in Fig.3. 2.2 Materials, smelting and casting The compositions of the steel and RE ferrosilicon alloy are given in Table 1 and Table 2, respectively.
Journal of Zhejiang Metallurgy, 2(2001), p.24-28 [8] Yu Zongsen, Chu Youyi: Rare Earth in Steel.Metallurgy Industry Press, Beijing (1982) [9] Zhu Xingyuan, Cheng Bangwen, Lin Qin: Current Status of Studies on Effect of Rare Earth on Micro Alloying in Steel.

Kato, Key Engineering Materials, Vol. 297(2005), p.1718 [2] S.Watanabe, J.Noshiro, S.Miyake, Surf.Coat.Technol.Vol. 188-189(2004), p.644 [3] K.Fujita, Surf.Coat.Technol.Vol. 196(2005), p. 139 [4] M.
Takezoe, K.Nakasa, Materials, Journal of the society of Materials science,Japan,Vol. 54(2005), p.1022 [8] J.