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Rigid structure will use a lot of material and cost high expense.
Bei jing: Science Press (2002) [4] Weng HM.
Beijing: Science Press, 1988 (in Chinese)
Journal of Wuhan University of Science and Technology. 2007, 30(6):647-651(in Chinese)
China Journal of Highway and Transport.2009, 22(6):91-95 (in Chinese).

Experimental Material and Method Studied area.
Acknowledgements This study was financially supported by the Forensic Science Institute.Many thanks are due to Dr.
[3] Dong xu-hui, Yang Xiang-dong , Diatom indicative species of eutrophication of the lakes in the middle and lower reach regions of Yangtz River , China Environmental Science, 2006, 26th, p 205-206
[7] Sunlin Hu , Chao Liu , Using microware digestion technique and scanning electron microscopy to detect diatoms in organs for the digestions for the diagnosis of drowing, Chinese Journal of Forensic Medicine, 2010, 25th , p 405-409
[12] XIN xiao-yun , Diatom Evaluation of Water Pollution in the Daihai Lake,Inner Mongolia , Journal of SHANXI University,2000, 23th, p 263-266

Application of RFPA 2D in Sublevel Caving Mining Extra-thick Coal Seams Hua NAN 1,a , Tao XU 2,b , Zhidong WEI 3,c 1 School of Energy Science and Technology, Henan Polytechnic University, Jiaozuo 454000 China 2 Research Center for Numerical Tests on Material Failure, Dalian University, Dalian 116622 China 3 School of Energy Science and Technology, Henan Polytechnic University, Jiaozuo 454000 China a nanhua@hpu.edu.cn, bxukyle@163.com, cweizhd@hpu.edu.cn, Key words: numerical simulation test; stress surrounding; parameters' selection; failure of top coal; extra-thick coal seams Abstract: On the basis of suitable arrangement for the special stress surrounding and parameters selection, Realistic Failure Process Analysis 2-D (RFPA 2D ) numerical simulation of extra-thick coal seams' displacement and failure is carried out.
[2] Jiachen WANG: Coal Science and Technology Vol. 33(1) (2005), P.14
[4] Mengtao ZHANG.: Journal of Rock Mechanics and Engineering Vol. 6(3) (1987) p.197
[6] Xinyuan LI: Journal of China University of Mining & Technology Vol. 29（6）(2000), P.633.

Plant material.
References [1] Jiangsu New Medical College:A Dictionary of the Traditional Chinese Medicines, Shanghai:Shanghai Science and Technology Press , 1976, p.652 [2] Y.
F.Wu: In Chinese Flora; Science Press: Beijing, 1982; Vol.20, p. 80
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Wang: Chinese Journal of Experimental Traditional Medicinal Formulae.

Usually, there exists an optimal frequency range (about 50kHz) which is related to the electromagnetic characteristics of the material and is similar to the flaw detection.
In Chinese [2] Yue Shen: Science Technology and Engineering, Vol. 8(2008), p. 5603-5607.
In Chinese [4] Yuehua Peng: Wavelet Transform and Its Engineering Application (Science Press, Beijing 2000).
In Chinese [6] Lijian Yang, Songsong Li, Yumei Wang, et al: Chinese Journal of Scientific Instrument, Vol. 23(2002), p. 484-485.
In Chinese [8] Xueyong Xu, Qian Feng, Jingya Lei: Journal of Geodesy and Geodynamics, Vol. 30(2010), p. 27-30.

Improvement of Inflow Water Quality of Dian Lake Treated by Constructed Wetlands Chen-Xi YANG 1,a, Ju-Rui YANG 1*2,b, Hui LI1,c (1Department of Water Resources and Hydropower Engineering, Kunming University of Science and Technology, Kunming, 650500, China Institute of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming, China) a344796657@qq.com, byangjurui@163.com, c314462925@qq.com Key words: Dian Lake; constructed wetland; water quality improvement liants; plant growth; vertical velocity; Abstract: A surface-flow wetland and a subsurface-flow wetland respectively were constructed at the entrance of Dian Lake in Yunnan Province.
Subsurface-flow wetlandt Tab.3 Removal Rate of TN under Different Constructed Wetlands Inorganic nitrogen in the sewage can be used as an indispensable material in the process of plant growth, directly by plant uptake , and synthesis of plant proteins and other organic nitrogen, through the plant of the harvest these can be removed from sewage and wetland system.
Acknowledgements This work was financially supported by the Nation Natural Science Foundment (50769001) and Ministry of Water Resources Project(201101042).
Constructed wetland and its application in industry wastewater treatment[J].Journal of Applied Ecology, 2002, 13（2）：P224-228.
Several macrophytes purification sewage of total nitrogen and total phosphorus effect research[J].Journal of soil and water conservation, 2004, 18(4): P77-92.

Study on Ideas of Highway Transportation Hub Development in Ethnic Minority Areas YANG Guang1, a,BU Lin2, bandSUN Xiaonian1, c 1 China Academy of Transportation Sciences, Beijing, China 2 ChineseSocietyfor Urban Studies Research Department, Beijing, China ayguang11@qq.com, bblspringhit@yahoo.com.cn, csunxiaonian@126.com Keywords:ethnic minority; highway transportationhub; development ideas Abstract.In April 2007, Ministry of Transport promulgated Planning of National Highway Transportation Hub, in which 196 cities were included in the city of national highway transportation hub, and those cities would gain financial support and policy support from Ministry of Transport and local Department of Transport.
Economic globalization exercises a great influence on economy of ethnic minority.Economic globalization provides a historic opportunity to promote economic development of ethnic minority, but the advent of knowledge economy makes economic development of ethnic minority face even more challenging developmental environments, among which are especially reflected in the increasingly widening gap between developed regions on the level of science and technology.
Due to the unaltered agricultural technique of long-term and backward agricultural production tools, both agricultural productivity levels and income levels are very low.Economic development of ethnic minority areas should vigorously develop characteristic economy[4]. ⑤Ethnic minority has a relatively strong dependence of economic relation on Central Government The dependence of underdeveloped ethnic minority on the Central Government and the developed areas in terms of manpower material resources and financial resources is apparent.
Yinshan Academic Journal. 2006, 19(4): 97-101 [4]Junhua Lin, XuejiuZeng.
Journal of Kangding Nationality Teachers College. 2001, 10(4): 6-9 [5]China Academy of Transportation Sciences.General Planning of YanjiNationalHighway Transportation Hub [R].Jilin Transport Department. 2011: 18-40

This ambivalent challenge often demands to solve various conflicts of objectives and thus requires a well-balanced coordination of engineering and materials science.
Steel materials with low strengths like DC- and DX- steels show high elongation, whereas materials with higher strength correspondingly exhibit minor values of elongation.
The crash behaviour of these materials will be analyzed with the help of a vertical drop test bench.
Table 2 gives a general overview of the employed materials.
Lechler, Investigation of the thermo-mechanical properties of hot stamping steels: Journal of Materials Processing Technology 177 (2006), 452-455

The number of operating hours required the produce 100 kgs of the material is found to be lower in combed counts in comparison to carded counts.
Govindarajulu, Some factor affecting yarn irregularity, Journal of the Textile Institute 65 (1974) 61 – 67
Leung, World-class apparel-sourcing enterprises and the restructuring of existing global supply chains, Journal of the Textile Institute 91 (2000) 73-93
Postle, Textile and apparel supply chain management in hongkong, International Journal of Clothing Science and Technology 18 (2006) 265-277
Haque, Lead time management in the garment sector of bangladesh: an avenues for survival and growth, European Journal of Scientific Research 33(2009) 617 – 629

Effect of QPQ Salt Bath Oxidation on Corrosion Resistance Li Yuan-hui1,2,a , Luo De-fu 1,2,b, Wu Shao-xu2 1School of Materials Science and Engineering, Jiangsu University, Zhenjiang Jiangsu, China 2 Chengdu Tool Research Institute, Chengdu Sichuan, China a lyhyjh@tom.com, bluodf@chinatool.net Keywords: qpq technology, post-oxidizing, second oxidizing, corrosion resistance, salt bath nitriding Abstract.
The material used in this study were 1020 steel.
Experiment Experimental material.
The material used in this paper was 1020 annealed steel with chemical compositions (in wt.%) of 0.22%C-0.31%Si-0.55%Mn-Fe.
Luo ,Journal of Materials Processing Technology, 66� 249-252(1997) [2] Xintianjinfu,Caiyoujishejizhizao[J]1,(1994) 59�64(in Chinese) [3] M.