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Parameters Affecting Dendrite Growth of Fe-C Alloy in a Forced Flow Xunfeng Yuan1,a, Yan Yang 2,b 1Department of Physics and Electronic Information Engineering, Shangluo University, Shangluo 726000, China 2Department of Mathematics and Computational Science, Shangluo University, Shangluo 726000, China ayuanyang2011@163.com, byanyangtianhao@163.com Keywords: Phase-field, Forced flow, Dendrite growth, Noise amplitude, Interface thickness Abstract.
In the past couple of decades, many works have been done in researching of dendrite growth for pure material[2-3], copper alloy[4-6], aluminum alloy[7-9], magnesium alloy[10] and Fe-C alloy[11-14].These simulation results give a new insight into the understanding of solidification theory.
Hu: The Chinese Journal of Nonferrous Metal, Vol. 20 (2010), No. 8 p. 1474
Wang and Y.Y.Li: Chinese Journal of Materials Research, Vol. 23 (2009), No. 3 p. 317.

Teaching objectives of diversification and multi-level teaching is a network feature, the network is no longer just teaching to render content for the purpose of teaching, in addition to providing a rich variety of learning materials to help students acquire knowledge, learning content and different for different basic level students, also specify the multi-level teaching goals, develop a variety of targeted learning strategies so that each learner to develop.
Teachers should focus on online teaching material collection, accumulation, sorting, organizational management, development and construction and sharing, focus on network teaching resources dynamically updated and application evaluation.
The culture of . students aerobics to compose the ability of applying modern education technology journal of Beijing Sport University, 2002,25 (3): 371-372
Journal of Zhejiang Normal University (NATURAL SCIENCE EDITION), based on 2002,25 (1): 73-77

Because of the complex component and high temperature of the molten steel as well as large temperature defference between the upper and lower parts of the protection tube in the measuring process, the requirement for the material of the tube is very strict.
By the laboratory test for material contrast and field erosion resistance test, the compound structure of the protection tube is adopted, that is, the upper part which is located in the slag layer uses the material with good resistance to erosion, while the lower part in the molten steel layer with good heat conduction.
References [1] Hongmao Xu, Xiang Hong and Wangzhou Zhang: Steelmaking Vol. 5 (1999), p. 61, in Chinese [2] Ying Ci, Zhi Xie and Hua Zhang: Journal of Northeastern University (Natural Science) Vol. 25 (2004), p. 460, in Chinese [3] Wensheng Yang: Metallurgical Industry Automation (2002) p. 49, in Chinese [4] Wenguang Zhao, Shengli An and Jichun Yang: Journal of Baotou University of Iron and Steel Technology Vol. 20 (2001), p. 114, in Chinese [5] Zhiquan Li, Zhaoxia Wu and Weidong Shi: Industrial Instrumentation and Automation (1997), p. 3, in Chinese

The New Structure of Fibre Glass Reinforce Plastics Bolt-end MA Nian-jie1,a, LI Ying-ming 2,b ，ZHANG Zhi-jie 3,c 1 School of Resource and Safety Engineering, Beijing Campus, China University of Mining and Technology, Beijing 100083, China; Department of Resources and Materials, Henan Polytechnic University, Henan 454000, China 2 School of Resource and Safety Engineering, Beijing Campus, China University of Mining and Technology, Beijing 100083, China 3 Shiyi coal mine, Pingdingshan Coal Mine Group Corporation, Pindingshan 450000, China a,b,cliyingming_tom@tom.com Keywords: Coal Side Supporting, Bolt-end, Eccentric load, Indentation Abstract.
According to material mechanisms, the stress affecting at any point (y,z) on the cross section of the bolt: ) 1( 2 2 z Q y Q z Z y y i yY i zZ A Q I yM I zM A Q ++=++=σ (1) In above equation, A is the valid sectional area of the tail of bolt , iy and iz are the inertia radiuses for the axis Y and Z.
Study on Breaking Mechanism of Rockbolt-end Chinese Journal of Rock Mechanics and Engineering, 2003.3 [2] MA Nian-jie etc.
JOURNAL OF COAL SCIENCE&ENGINEERING. 2003.6

The definition of 3D full-information model of Aircraft machining parts Ligang Qu1, a, Shuang Zheng1, b , Xiaoguang Han 1,c 1 Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process, Shenyang Aerospace University, Shenyang, China. 110136 aquligang@126.com, bfatyy@163.com, chanxg_123@163.com Keywords: 3D Full-information Model, Aircraft Machining Parts Abstract.
After using the 3D process information model, it is needed to classified organize and manage the process information, complete reflect the product information such as geometry attribute and process attribute, in order to meet the data requirements which is needed in the manufacturing process, and guarantee coordination in the product designing. 3D process full-information model contain geometric solid model, coordinate system, dimensional tolerances, processing, engineering notes, standard references, standard parts and materials and so on [3].
Physical characteristic class properties point to a supplement to product characteristics which can not be described by geometric data set, mainly point to text explanation, such as: material, weight, parts type, quantity of the parts, design principle and function specifications of the product, etc.
Vol. (3) (2008), p. 1 [2] Hu Lu, Yuqing Fan: Journal of Engineering Graphics.
Vol. 38(23) (2009), p. 3 [4] Lihua Zhang, Yuqing Fan: Journal of Beijing University of Aeronautics and Astronautics.

Obviously, if the material is isotropic and homogeneous medium, and ε1=0, ε3=0, the results of two questions is the same.
If the material is anisotropic inhomogeneous media, such as soil, the result depends on the strength parameters in each direction.
Moreover, the soil is a mixture of air, water, solid particles three-phase material, the greater uncertainty.
Li: Chinese Journal of Underground Space and Engineering Vol. 5(2009), p. 1557.
Rao: Chinese Journal of Geotechnical Engineering Vol. 32 (2010), p. 150.

Suspend-dome Static Behavior Analysis Xiyun Dai 1a Xiangyun Kong1b Lin Tian1c 1Faculty of Civil and Architectural Engineering of Kunming University of Science and Technology, Kunming, 650500, China a email: 1319969358@qq.com, b email: 12643015@qq.com, c email: 365836405@qq.com Key words: Suspend-dome, Parameter Analysis, Static Behavior.
Monolayer spherical reticulated shell structure has a characteristic of weak out-plane stiffness, structural material strength can’t fully exert, usually the bearing capacity is controlled by stability; while cable dome is of high cost and hard to construction.
Considering the roofing material weight and part of live loads, the structure bears load at 1.6kN/m2 effecting on the joints which are hinge joints.
Journal of Building Structures, Vol.21 (2003), p.75
Journal of China Civil Engineering, Vol.45 (2005), p.34

And the material property and the motion restraint are set according to the above-mentioned principle.
The motion restriction, materials density and friction are input into the virtual model of the transit unit.
Acknowledgment Funding for this research was provided by the National Science & Technology Pillar Program of China (2012BAF07B02) and the Beijing Innovation Team Program on Fruit and Vegetable Industrial System.
Journal of Northeast Agricultural University,1957,1 [9] Zhao Yongge,Xu Mingxiang,Wang Quanjiu,Shao Mingan.
Physical and chemical properties of soil bio-crust on rehabilitated grassland in hilly Loess Plateau of China,J.Chinese Journal of Applied Ecology.17(2006) 1429-1434

The problem relating historical deformation, such as viscoelastic material model and the time effect of inertia (dynamic problems), must use incremental method.
Considering of the load temperature, the dynamic plastic bilinear isotropic material model associated with temperature is chosen.
K=1.5 K=1.8 K=2.2 K=2.6 Fig 2 Failure process by water specific gravity overcharge method Acknowledgement This paper is supported by the doctor Foundation of Guangxi University of Technology (11Z02) , GuangXi Department of Education Foundation and the GuangXi Science Foundation (0991063).
References [1] Ren qing-wen: status quo and problems on safety analysis of high arch dam.journal of hydraulic engineering.
[2] Zhang chu-han:discrete-contact-fracture analysis of rock and concrete.Chinese journal of rock mechanics and engineering.

Introduction When manufacturing a cold-forged steel such as a bolt, the steel is normally subjected to spheroidization annealing to soften the material and increase its ductility before it is formed into final shape.
Pineau, Journal of the Iron and Steel Institute, Vol. 209, (1971) p. 891 [5] S.E.
Lee, Journal of Materials Science, Vol. 22, 1987, p. 2319