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The material of steel plate is Q235, whose parameters are that Elastic modulus E=2.0e11Pa, Poisson ratio=0.266 and Density.
Jiangsu Phoenix Science Press, 1988, pp.219-223 [3] W.W.
Shen, Fuxiang Guo and Deguang Fang: Journal of Vibration and Shock, Vol.29 (10)(2010), p.244

Research on the migration of children’s experience from the virtual world to the real world Jinyan Hu1 , Hongyu Feng1, Jianheng Lu2 ,Yuanyuan Li2,b, Yancui Li1,Lili Zhang1,a 1College of Information Engineering, Henan Institute of Science and Technology Xinxiang Henan, China,453003 2No.2 Senior Middle School of PingdingshanPingdingshan Henan, China,467092 a hujinyan07@163.com, b iamlyy@126.com Key words: virtual world, real world, migration Abstract.
The objects in virtual world are no more than the “electronic” material in the real world, but the extension and expansion of the real world by using new technologies.
Journal of Huaiyin Teachers College, 2005, (3): p360(2005) [4] Xiaodong Xu.

Research on Identification Model of Stator Core Temperature Rise of a Generator Dong Xiang1, Hao Xiong1,2, a , Ningbo Liu1, Qiang Wu1 and Guangwei Meng1 1 Naval University of Engineering, Wuhan, 430033, China 2 Huazhong University of Science and Technology, Wuhan, 430074, China ahowell76@sina.com Keywords: Stator core, Temperature rise model, System identification, Generator.
In Fig. 4, the heat capacity is the product of the mass concentrated in the node and the mass specific heat of its material, and the copper loss of the stator windings is not a constant heat source but a dependent heat source controlled by the temperature.
Seetharamu: International Journal of Numerical Methods for Heat and Fluid Flow Vol. 9 (1999), p. 18-38

Some factors such as stress-strain relation of nonlinear material, crack of concrete, tension strengthen, load and time history and nonlinear temperature grads are considered in the program.
[3] Wang Tiemeng, Crack Control of Building, Science and Technology Publishing House of ShangHai, 1987
[4] Hsuan-The Hu and William C.schnobrich, Nonlinear Analysis of Crack Reinforced Concrete [J], ACI Structural Journal / March-April , 1990.

If high quality iron core is used, the no load loss decreases; if the appropriate winding material is applied, the load loss could decrease.
Reference [1] B.Q, Yu: A No Load Experimental Method for Power Transformer at Test Field [J] (China Academic Journal Electronic Publishing House.2002), p.65
[4] C.L, Gu and Q.F, Chen: Electric Machinery Theories [M], (Huazhong University of Science and Technology press, 2005), p.118

With the development of modern science, new technologies have been widely used.
Due to high temperature alteration ratio, sealing material must be have the high thermal conductivity and heat resistance [3].
[7] Li Xiubao, Xu Rangshu: Journal of Shenyang Institute of Aeronautical Engineering, Vol. 26 (2009) No. 1, p.20-22.

The Technical Analysis of Energy Saving and Emission Reducing in China’ s Iron and Steel Industry Based on LEAP Model Baoqing Wang1, a, Lei Zhang1, b, Deqing Wang1, c, Shuai Yin1, d, Shu Yao1, e 1College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China awangbaoqing@nankai.edu.cn, bzlshmily@126.com, cwangdeqing871109@126.com, dyinshuai1989@mail.nankai.edu.cn, emadkon@qq.com Keywords: The iron and steel industry, LEAP software, Saving energy, Reducing emissions, Scenario analysis Abstract.
Material and methods 2.1 LEAP LEAP, the Long range Energy Alternatives Planning System, is a widely-used software tool for energy policy analysis and climate change mitigation assessment, which is developed by Stockholm Environment Institute.
Journal of China’s iron and steel industry, (3), 18-20.

Soil improvement of Pinus yunnanensis forest at different age in Central Yunnan Plateau Jinxia Wu1, a, Yanxia Wang1, b , Qibo Chen1, c and Zhilong Tong 1, d 1 Department of Environmental Science＆Engineering，Southwest Forestry University，Yunnan，China awjx19880819@163.com, b65653584@qq.com, cchengqb@swfu.edu.cn, d289694710@qq.com Keywords: forest age, Pinus yunnanensis, soil physical and chemical properties Abstract: Took the Pinus yunnanensis forest as the research object, and took planted forest for control, carried on a research in soil physicochemical properties of different forest ages of Pinus yunnanensis.
Introduction Vegetation and soil are important parts of ecological system, soil is the material basis in the occurrence and development of plant community.
References [1] Junyan Zhang, Yuanchang Lu, Kewu Cheng, Kaipeng Zhong and Yongxiang Huang: Journal Publishing Department of Agricultural University of Hebei, 72-77(2010), in chinese

Effected by water and sediment regulation of station upstream, the overall riverbed deformation and sediment problems in Nanpanjiang river are not serious, riverbed material mainly composed of bedrock, gravel, partly pebbles and coarse sand.
Study on the Navigation and Power Station for Hump Modulation of Three Gorges and Gezhouba Project[J].International Journal Hydroelectric Energy. 20（2）,2002 : 7 - 12
Advances in Science and Technology of Water Resources, 23（6）,2003：7-9.

The material of chord member and web member are Q690 steel, whereas the inner annular plates are Q345B steel.
Acknowledgements This work was financially supported by the Shanxi Natural Science Foundation (2011JQ7008), the Special Research Foundation (11JK0965) from the Education Institution of Shaanxi, and the Fundamental Research Foundation (JC1105) from Xi’an University of Architecture & Technology.
[3] Zhao X L., “Deformation limit and ultimate strength of welded T-joints in cold-formed RHS section,” Journal of Constructional Steel Reach, Vol. 53, 2000: 149-65 [4] International Institute of Welding (IIW).