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As the e-learning area matures, there are a growing number of e-learning content providers that produce and distribute material that covers a large range of topics, differs in quality and is represented in various formats.
Acknowledgements This work is supported by the Crucial Special Project: National Water Pollution Control and Management Science (Grant no.2009ZX07528-004), the twelfth Five-Year Guideline on Education Science of Liaoning Province (Grant No.JG11DB267) and Science & Technology Department of Liaoning Province (Grant No.LiaoKeHan [2010] 36).
References [1] Chunfu WU:Computer Engineering and Design Vol. 27 (2006) No.22, p. 4288 [2] W3C “SOAP version 1.2” on http://www.w3.org/TR/soap/ [3] Qunying Cai, Zhenjian Huang: Computer Engineering and Design Vol. 28(2007) No.15, p. 3720 [4] ADL Co-Laboratories.Sharable content object reference model (SCORM) version 2004[EB/OL] on http://www.scorm.ro/en/ca tegory/ docs/scorm [5] Yu Geng: Journal of Wuhan University of Technology Vol. 29(2007) No.7, p. 879 [6] R.S.

Analysis of edge cracks in hot rolled aluminium alloy sheets contained of magnesium for can usage Ruiyin Huang 1，2，a, Y.Y Guo3,b, Yuanzhi Zhu3,c, Wang Liu2,d 1School of Material Science and Engineering, Centeral South university,Changsha,china; 2Chalco Ruimin co.
,Ltd, Fuzhou 350015,china; 3Wuhan university of science and technology, wuhan, china ,430081 ahuangruiyin868@163.com bperfectgyy@gmail.com, ctozyz1@163.com，dliuw@ruimin.com Key words:5182; aluminium alloy with high magnesium content;edge crack;Sodium embrittlement Abstract. the edge crack frequently occurs in hot rolled 5182 alloy.
Acknowledgement This work is supported by The National Natural Science Foundation of China (No. 51074117), the Foundation for Distinguished Young Scientists of Hubei Province of China (No. 2009CDA044).
Reference： [1] Ren-guo Song，Mei-guang Zheng.Effect of Mg segregation on grain boundary binding force and fracture stress in high-strength aluminium alloy[J].Journal of Northeastern University,1994(2):5-9

This work was financially supported by the University Science and Technology Project of Shandong Province (J11LD26) and Natural Science Foundation of Shandong Province.
Li: Automobile Technology & Material Vol.7(2002), p.27 (In Chinese) [4] J.
Karnik: Journal of Computer and Information Science in Engineering Vol.3(2003), p.109 [9] N.

Energy, raw materials, labor and land prices are rising, leading to small and medium enterprises have relied on our low-cost comparative advantage is gradually losing one of the main.
However, these views are difficult to finance and science and political economy distinguished.
From the knowledge and sustainable financial point of view, the proposed financial basic principles: the principle of capital preservation; hard Moderate consumption of financial resources and effective use of principles; actively foster the principle of the soft resources; stakeholders configuration and the common governance principles; equitable distribution and coordination of interests principle; people of the financial and material combination of the financial principles; responsibilities effectively combine the principles of profit.
Proceedings of the Thirty-second Southeast Decision Sciences Institute, Hilton Head, SC, 2002, pp. 150-151
International Journal of Computer Processing of Oriental Languages, 2003, 16(2):121-126.

According to the literature shows that any of the materials are magnetized in geomagnetic field ferromagnetic.
By the analysis of the structure of the two cables, we can know the main ferromagnetic material is steel wire armoring; the cross-sectional area of undersea fiber optic cable directly affects the magnetic field strength.
References [1] Ye Yincan.development of submarine optic cable engineering in the past twenty years [J].Journal of Marine sciences.24 (3), 1-10, 2006 [2] Liu Jia, Zhou Xuejun, Wang Jingjuan.
Geo-spatial information science, 10(3):186-190(2007)

Molecular Dynamics Simulation of Nanoscale Contact Process of Plane on Plane Xiaojing YANG1,a , Xiaojiang YANG2,b 1 Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming, 650500, China 2 Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming, 650500, China axjyang@vip.sina.com, bxiaojiangyang89@sina.com Keywords: Nanoscale, Plane, Contact, Adhesion, Molecular dynamics, Simulation Abstract.
Diamond cubic lattice structure of single crystal silicon material can use Tersoff potential function [7] to describe the interaction between the Si-Si and Si-C.
When the indenter plane touch the substrate plane, and pressed into the substrate, the lattice structure of the substrate material start to be destroyed under pressure action.
The deformation of the substrate material is the most serious, form a big accumulation of dislocations region below the indenter.
Journal Computational Physics, Vol. 117 (1995), p. 1-19

Chena, Chih-Ching Lin b, Jr- Rung Chenc Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan a artchen@mail.ntust.edu.tw, b M9303208@mail.ntust.edu.tw, c D9403202@mail.ntust.edu.tw Keywords: Large slope angle lens, Form error analysis, Stylus tip measurement, Aspheric lens.
Table 1 Specifications of s55ml spherical gage s55ml Spherical Gage Material Si3N4 Radius 5.5573 mm Deviation from nominal diameter ± 2.1 µm Roundness 0.013 µmFig. 7 Experimental flow chart.
Acknowledgement The authors wish to appreciate for financial support from the National Science Council, Taiwan under grant No.: NSC 95-2221-E-011-094 and also the valuable assistance from the Center for Measurement Standards, Industrial Technology Research Institute (ITRI), Hsinchu, Taiwan.
Chen, Chun-Hun Cho, Huay-Chug Liou and Yen-Liang Chen: Journal of Chinese Society of Mechanical Engineers, Vol.25, No.5. (2004) pp 423-429
[7] American Society for Testing and Materials (ASTM) E1813-96 (1996)

Experimental 1.1 Materials Cellulose was supplied by HuaiHai Co.
Their structure, properties and morphology have been characterized, and this type of biocompatible material is proposed to have promising potential in biomedical, drug delivery systems, enzyme immobilization, and many other related fields.
Williamson: Science.
Hu: Journal of Applied Polymer Science.

Therefore, it will be a new important research direction of fire detection by combining the fire detection technology and the wireless communication technology to realize a wireless，network and intelligent fire detection system. 4) Intelligence Algorithm of Fire Signals For different burning material and environment detected, the difference dynamic characteristic parameters value collect by sensors is very big.
Parts of environment data detected by this system is shown in table 1 Table 1 Environment data of composite fire detection node Species Materials Temperature output Smoke output CO output △T △S △C Flame Towel 2.30 2.61 2.17 3.5 0.5 0.6 Bubble 3.30 2.55 2.71 2.5 1.1 1.6 Plastic 2.65 3.20 3.00 2.7 0.7 1.4 Smoldering fire Paper 0.66 2.85 2.99 1.0 3.4 4.1 Timber 0.68 2.79 2.95 0.8 4.1 4.0 Plywood 0.32 2.57 2.96 0.9 3.8 3.5 Interference Candle 0.36 2.41 2.63 0.4 1.3 0.6 Cigarette 0.14 2.67 2.58 0.2 2.4 1.5 Liquefied gas 0.11 2.38 2.60 0.0 0.4 0.7 By the data of composite detection node， We can see that lots of heat is released in open flame stage, and the temperature changes very quickly.
Journal of Software, 2003, 14 (7) 1282-290
Fire Science, 2001, 2 (10): 108 a 110 [9] Lv Zhian.
Research on control system of distribution intelligent fire alarm [D].wuhan: Huazhong University of Science and Technology, 2004:-41

Numerical simulation on beam-column joint in the added-layers steel structure under monotonic loading Haijun Wang 1, a, Yong Yao2,b, Yunpeng Chu 3.c, Daiguo Chen 4,d 1,2,3,4 Collage of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang,China awhjxnkjdx@163.com,byy001221@163.com,c377309083@qq.com,dcdg-927@163.com Keywords: Add-layer Joints of Steel Structure, Finite Element Simulation, Monotonic Loading, Stiffness Degradation Abstract: Add layers for low-rise steel structure building can improve its using function.
a) The first model b) The second model c) The third model Fig. 2 Geometric drawing of models Finite Element Model The models are the elastic-plastic material completely, and their yield criterions are the Von Mises yield criterion.
This is due to the weld’s carrying capacity is weaker than the main material, and the weld at the upper and lower column connections is yield prematurely.
The third joint, failure surface is happened out of haunched slab (similar to the plastic hinge under the cyclic loading) and there first reach the ultimate bearing capacity of the material, to being a motor component.
Acknowledgements Supported by technology support program of Sichuan province, No (2011GZ0043) and by Young Scientists foundation of southwest university of science and technology, No (11ZX3129) References [1] Fudong Dai, Bolong Zhu, Xinquan Li.Residential building in light-steel system-the development Chinese residential building.Architectural Journal.In chinese.1998(12):15-16 [2] Jing Zou, Yuanqi Li.