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There are many kinds of materials for the bipolar plates such as machined graphite plates, metal sheets and graphite composites, etc.
The characteristics of innate materials are represented in Table 1.
Even though FG was also one of the conductive materials, its contribution to the electrical conductivity was quite lower than EG.
Furdin: Progress in Materials Science, Vol. 50, pp. 93-179, 2005 [9] S.I.
Han: Advanced Composite Materials, Vol. 15, No. 1, pp.115-126, 2006

In 1982, Mandelbrot proposed the fractal dimension theory, and then GA Niklasson studied the advantages and disadvantages of the fractal dimension theory in building materials, and pointed out that this method had a good correlation.
Experiments and Experiment Methods Raw materials:Cement: Dingxin common portland cement (P.O 42.5), Jinyu Dingxin Cements Limited, the main physical indexes are shown in Table 1, the main chemical components are shown in Table 2.Sand: ISO standard sand.
Zheng Zhongshan, Yu Ke and other researchers found that the size distribution of a large number of powder materials have fractal structure [4], met in the Formula (1)
Fractal characteristics of powder particle size distribution, Journal of materials research, 1995, 9(6): 539-542
Study of Super High Strength Concrete Containing super fine limestone powder and Titanium slag powder, Journal of Building Materials, 2005, (06):672-676.

Acetyl Sulface reacted by the mixture of Acetic Anhydride and Concentrated Sulfuric Acid at equal proportion is the reagent. low molecular weight Chitosan being as raw materials, Vulcanized Oligomer Chitosan is sulfonated with good water-solubility and high sulfur content under certain conditions.
Materials and methods. (1) Experimental materials.
Wu, chitosan sulfonation and its application, Guangzhou: Guangdong University of Technology Master of Science thesis.1 (2002)1-19
Jiang, Development of sulfonated hydroxyethyl chitosan, Chinese Journal of Biochemical Pharmaceutics.19 (1998)163-165
Wu, Bio-pharmaceutical technology, Nanjing, China Science Press.4 (1987)51-57.

Distribution, Sources and Ecological Risk Assessment of Polycyclic Aromatic Hydrocarbons(PAHs) in water of the provincial control section river, Longyan Zhang Xia-hong1,a, Chen Ke-hua2,b, Zhang Ru-ping1,c 1Department of Chemistry and Materials Engineering, Longyan University, Longyan, 364000 2Longyan Environmental Monitoring Center, Fujian,36400,China a lw-ly@126.com, bckh519@163.com, c zhangruping@163.com Keywords: Polycyclic Aromatic Hydrocarbons (PAHs); water phase; ecological risk; mainstream Jiulong river estuary Abstract.
Material and method General situation of study area.
[7] Qiao M, Chen Y Y，Zhang Q H,，et al: Environmental Science Technology Vol. 40 (2006), p. 1415-1419
Keenleyside K A ,et al: Journal Great Lakes Research Vol.22(1996),p.624-638
[13] Haiyan Jin,Jianfang Chen,Jianming,et al:Journal of Marine Sciences Vol.24(2006),32-40 [14]Xuehui Cui,Binghua Li, Honghan Chen:Environmental Science Vol.29(2008),p.1806-1810. in chinese

Introduction In manufacturing environment, material requirement planning (MRP), manufacturing resource planning (MRPII), or enterprise resource planning (ERP) systems have been deployed by manufacturing organizations as production planning and scheduling systems for decades.
Appreciations go to School of Computer Sciences, Universiti Sains Malaysia, and Incentive APEX in supporting the conference expenditure.
Chen, "A Study of Successful Erp – from the Organization Fit Perspective," Journal of Systemics, Cybernatics, and Informatics, vol. 7, pp. 8-16, 2009
Markus, "Tailoring Erp Systems: A Spectrum of Choices and Their Implications," Proceedings of the 34th Annual Hawaii International Conference on System Sciences, vol. 49, p. 9, 2001
Spedding, "Enterprise Resource Planning: An Integrative Review," Business Process Management Journal, vol. 10, pp. 359-386, 2004.

Effect of Stearoyl Lactate Calcium-Sodium as Promising Improvers for Wheat Bread Junhe Zhang1,a, Jie Zeng1,b, Guanglei Li1, Haiyan Gao1 1 School of Food Science, Henan Institute of Science and Technology, Xinxiang, 453003, China a zjh335@126.com, b zengjie623@163.com Keywords: stearoyl lactate calcium -sodium; dough; bread quality Abstract.
Materials and methods Materials.
Acknowledgements This work was financially supported by the Science and Technology Plan of the Education Department of Henan Province (2010A550005) and ( 2010GGJS-141).
References [1] H.Goesaert, L.Slade, H.Levine and J.A.Delcour, Journal of Cereal Science, Vol. 50(2009), p. 345-352 [2] Y.Pomeranz, M.
S.Clerici, C.Airoldi and A.A.El-Dash: LWT - Food Science and Technology, Vol. 42 (2009), p. 618-623 [5] A.

Numerical Simulation on the Microstructure during Extrusion Process of P91 Large Diameter Thick-walled Tube Pan Li1, a , Jian Zhang1, 2,b , Xu Ma1, c 1Tianjin University of Technology, Materials Science and Engineering, Tianjin, 300384, China 2Key Laboratory of Display Materials & Photoelectric Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China alipan336@126.com, bzhangjian@tjut.edu.cn, cmaxumax@163.com Corresponding Author: maxumax@163.com Keywords: P91 seamless steel pipe, Vertical extrusion, Numerical simulation, Comparison.
Acknowledgements This work was supported by Ministry of Industry and Information Technology of the People's Republic of China support project under Grant No.2009ZX04014-063-03, the National Natural Science Foundation of China（No.50975205）, Key Technology Support Program of Tianjin China（No.12ZCZDGX00600）, and Tianjin Key Subject for Materials Physics and Chemistry.
Metal journal, 2003,39(7): 699～703
Materials Science and Engineering, 2000, A283:17～24
[8] N.Bontcheva,G.Petzov.Microstructure evolution during metal forming processes, Computational Materials Science, 2003, (28):563～57

If the valuable secondary materials could not be effectively utilized, it is not only caused a great waste of resources, but also gave rise to a serious problem of environmental pollution.
Microscopic structure analysis of the composite materials The iodine number and the yield of the final ZnO/AC composite prepared at the optimum conditions are 1130mg/g and 50.81%, respectively.
Acknowledgements This work was financially supported by the National Science Foundation of China (51004059) and the Natural Science Fund in YunNan province of China (14051157).
Feng: Journal of Nanjing University (Natural Sciences) in Chinese, Vol. 31, (1995), p.242
Yuan: Microporous and Mesoporous Materials, Vol. 118, (2009), p. 307

Technological development of 6.5wt%Si electrical steel production Shuai Ji1,a, Jing Tao Han1,b, Jing Liu1,c and Teng Wu2,d 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China 2 School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, China acarven0910@sina.com,bhanjt@ustb.edu.cn,cliujing_caijia@126.com, dwu_teng@126.com Key words: 6.5wt%Si electrical steel; Magnetic property; Preparation technology; Development Abstract. 6.5wt%Si electrical steel has a wide application in electrical and electronic devices based on its excellent soft magnetic properties.
Chinese Journal of Nonferrous Metals, 2009, 19 (4): 714-719 [9] Bi Xiao Fang , Lu Feng.
Metal Functional Materials, 2001,8 (5) 1-7 [11] Yamashita.
Functional Materials, 2007, 38 (10): 1603-1609 [18]Han Jingtao, Liu Jing.
Advanced Materials Research, 2014, 902: 7-11 [20] Feng Dajun, Zheng Zelin.

Applied Mechanics and Materials. 379 (2013) 49-55
World Applied Sciences Journal. 25 (9) (2013) 1275-1279
Key Engineering Materials. 684 (2016) 429-434
Key Engineering Materials. 684 (2016) 421-428
Journal of Refractory Metals and Hard Materials. 27 (2009) 282-287