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Effects of Si on Structure and Properties of Mg-Sn Alloy Haoran Geng 1,2,a Peng Liu1, Huawei Jiang1, Bo Teng1 1School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China 2Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China aEmail: mse_genghr@ujn.edu.cn Keywords: Magnesium alloy, Mg-Sn alloy, Microstructure, Mechanical properties Abstract.
Friedrich: Materials Science Forum, Vol. 419 (2003) No.1, p.51
Nishikawa: Function and Materials, Vol. 19 (1999) No.6, p.21
Tang: Journal of Alloys and Compounds, Vol. 440 (2007) No.1-2, p.122
Cheng: Materials Science and Engineering, Vol. 512 (2005) No.1-2, p.132

When the box parts drawing, the materials of the radius region flow to the straight edge portion, the straight edge portion tangential shrinkage in the flange area( εθ < 0 ), so that the strain strength of straight edge portion increases , and the degree of hardening of the material increases[4].
The closer to the straight edge central, the less materials of rounded area flow, therefore, the smaller hardening degree of the material.
Das Talukder: Springback analysis of thin rectangular bars of non-linear work-hardening materials under torsional loading, J.
International Journal of Mechanical Sciences. 44 (2002) 1505-1519
[2] Chen Lei: Effect of Material Parameters Wave on Sheet Metal Springback Using Orthogonal Design Simulation, Advanced Materials Research.

The Research of Engine Modeling Based on the Petri Model of Behavior Flow Hao Yongtaoa, Tang Taob The CAD Research Center of Tongji University, Shanghai 200092, China ahaoyt@vip.sina.com, bpatronfeng@hotmail.com Keywords: behavior flow, material, Petri net, behavior flow modeling.
The research work presented in this paper was supported by Natural Science Foundation of China (Grant Nos.E050604 / 51075306) References [1] Suh Nam Pyo.
Artificial Intelligence for Engineering Design, Analysis and Manufacturing, 2008, 22, 147-169 [4] Hao Yongtao ,Xin Cheng, Lou Diming; Product gene model research based on function and behavior semantic network, Journal of Tongji University, v 38, n 7, p 1085-1091, July 2010 [5] Kitamura, Yoshinobu, Sano, Toshinobu, et al; a functional concept ontology and its application to automatic identification of functional structures [J], Advanced Engineering Informatics, 2004, 16(2), 145-163 [6] YE Yang, CH ENG Shao, et al.
Modeling and Analyzing of Train Operation Systems Based on a Kind of Hybrid Petri Net [J], JOURNAL 0F THE CHINA RAII WAY Society, October 2009, 31(5), 42-49

Environmentalists have observed that the contaminants have been distributed in each part of the globe and may be a bigger problem in the future [1].Local junk foods and its raw materials used to prepare such may have been exposed and may contain high concentration of heavy metals such as lead, cadmium and chromium or the rare but potential poison cyanide which is present in various forms [2].
This study involved the quantitative determination of the concentration of three heavy metal contaminants lead, cadmium and chromium in the sample products Materials and Methods Research Design This study used a descriptive, exploratory, experimental design.It focused on the evaluation of the heavy metal contents lead, cadmium, and chromium from sample junk food.
Collection of Sample Materials Thirty six brands of junk food have been randomly selected and collected from various sari-sari stores in Metro Manila, Philippines in the month of June 2012.
European Journal of Soil Science vol 48 (1997) pp. 573-592
Journal of Environmental Science and Management vol 11, no.1 (2008) pp1-13.

As shown in Fig.3，cross section, material types, heat treatment, placement, span can be set in parameters setting module.
DMETKF2009016 ) and Hubei Province Science Foundation (NO.2008CDB274).
Lecture Notes in Computer Science, Vol. 5315 LNAI (2008), No. 2, pp 321-328
Technological Sciences, Vol.52(2009), No.7, pp 1866-1873
AEJ - Alexandria Engineering Journal, Vol.43, No.5, p p.621-629

Introduction Project management engineers integrate human, information, material, monetary, and technological resources to produce goods and services optimally.
This guarantees to keep the teaching content comporting with the development of science and technology in high degree.
Applying the Education Objectives Now science and technology is developing at a tremendous pace and requirements of market varied increasingly.
Systematize students to learn innovation theory, to open material department, lab to the student comprehensively and all day long.
[4] Liu Changsheng, 2004, journal of Northeast University (Social Science), 3, 108-110.

The cost of raw materials of steroids by fungal humification may get well below that extracted from plant. 3.
Study Journal of Traditional Chinese Medicine. 2004（1）. 56-59 [3] Dong Xin,Wu man-jiang Ai li, Wen Bin.
Carrier material of enzyme immobilization for biosensor.
[J]Aquatic Sciences,2004,(66):151-170 [11] Wei-Jiunn Leea, Fung-Jou Lub, Shan-FuWang et al.
Journal of Chromatography A, 2008, 1204 :130-139 [13] Hung-Chih Tinga, Cheng-Chieh Yenb, Wen-Kang Chen et al.

Influence of the blank contour to drawing deformation of the oil tank with 304 strainless steel Zhiqiang Sun1,a, Yuxin Zhang1,b, Yong Li1,c, Ruizhu Zhang1,d,Yi Zhong2,d 1Department of Mechanical Engineering, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou in Henan, 450011, China 2Faculty of Materials and Metallurgical Engineering; Kunming University of Science and Technology; Kunming in Yunnan, 650093,China Sunzhiqiang@ncwu.edu.cn1a,zyx@ncwu.edu.cn1b, liongkm@163.com1c, zhang820@sohu.com1d, zy5125990@126.com2d Keywords: Blank dimensions; Equivalent strain; Drawing strength; Numerical simulation.
The first semifinished materials fall the material, the second primary drawing, the 32nd finishing, fourth excision fragments.The weight of blank is about 50KN, mTotalSelected the proper side length of the blank is more conducive to uniform deformation of the blank, and plays a role of saving the metal material and reducing the production costs.
Acknowledgements This work was supported by the “948” Science and Technology Foundation(201015).
The characteristics of stainless of steel drawing process and the selection of technological parametrs[J].Journal of Shandong University of Technology,1994(1):45-49.In China

Development of Connecting Rod Three-Dimensional Parametric Design System Kexi Guoa, Hao Tangb and Qiong Caoc Changsha University of Science and Technology, Hunan Province 410114, P.R.
Connecting rod material parameter edition module.
After designation of the model parametric, click instrument tool on “material edition” buttom or menu bar “parameter edition” “material edition” order, entering material parameter editor interface, look at Fig. 5.
Acknowledgement This work was supported by National Natural Science Foundation of China (51005024), China.
Journal of Engineering Graphics.

Micro Behavior Study of Non-Metallic Inclusion In High Strength Shaft Steel Yanping Zeng a, Chunmei Xu b, Jianxin Dong c, Maicang Zhang d and Xishan Xie e High Temperature Materials Research Laboratories, University of Science and Technology Beijing, Beijing, People's Republic of China a zengyanping@mater.ustb.edu.cn, bcmxu@imr.ac.cn, cjxdong@mater.ustb.edu.cn, d mczhang9@mater.ustb.edu.cn, exishanxie@mater.ustb.edu.cn Keywords: high strength shaft steel, inclusion, crack initiation and propagation, fracture Abstract.
This material was vacuum induction melted and subsequently vacuum arc remelted prior to forging.
Machmeier: Metallurgical and Materials Transactions A Vol. 27A (1996), p. 2510 [6] H.E.
Olson: Metallurgical and Materials Transactions B Vol. 29B (1998), p. 205 (a) (c) (d) (b) Loading Direction [7] L.D.
Kang: Journal of Materials Science and Technology Vol. 16 (2000), p. 491 [8] J.L.