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As the upstream of iron and steel, electric power, building materials and chemical industry, coal industry is an important element concerning the sustainable development of Chinese economy.
[2] Liane Easton,David J Murphy b, European Journal of Purchasing & Supply Management, J.08(2002)123-134
[3]Seoki Lee,Woo Gon Kim, International Journal of Hospitality Management, J.28(2009):439-445
[4] Xiaohui Zhou,Journals of Guangxi College of Finance and Economics,J.24(2011)98-102
[5] Yu Pei,The science of Modern Management,J.11(2012)32-34

It is certainly favorable to use high strength steel in tension member, but its material strength can’t be taken advantage when it is used in compressive member.
Q460 steel is used for core tube while Q235 steel for outer steel pipe, and both materials are taken as multiple linear kinematical hardening.
References [1] Shi Gang, Ban Huiyong, Shi Yongjiu and Wang Yuanqing, Industrial Construction (in Chinese), Vol. 42 (2012), p. 1-7,61 [2] Wu Tianhe, Deng Changgen and Shen Bo, Journal of Southeast University(Natural Science Edition, in Chinese), Vol. 39 (2009), p. 53-57 [3] Liu Xuechun, Xu Keran and Zhang Ailin, Journal of Building Structures (in Chinese), Vol. 32 (2011), p. 156-161 [4] Guo Yanlin, Deng Ke and Lin Bing, Industrial Construction (in Chinese), Vol. 37 (2007), p. 92-119 [5] Praas B K, Experimental investigation of sleeved column, Proc. 33rd AIAA/ASCE, Dallas, USA (1992), p. 991-999 [6] Yin Zhangzhong, Wang Xiuli and Li Xiaodong, Journal of Gansu Science (in Chinese), Vol. 22 (2010), p. 109-113 [7] Chen Mingfei, Study On Stability Behaviour Of High-strength Steel Combined Pressure Member, Master Thesis of Beijing University of Technology (2013)

Rail material properties Item Elastic Modulus [Pa] Poisson Ratio Density [kg/m³] α β Value 2.059×1011 0.3 7830 7 1.00×10-6 Notice：α, β are the coefficient Rayleigh damping.
Li: Journal of the China Railway Society, 2011, 33(7):86-90 [2] Elias Kassa and Jens C.O.
Nielsen: Journal of Sound and Vibration，320(2009)：893-914 [3] K.
(Doctoral candidate of Chinese Academy of Railway Sciences, 2006)
Feng: Journal of Beijing Jiaotong University, 2006, 2: 66-70

Acknowledgement This work is supported by the Hebei Province Natural Science Foundation of China(Grant No.E2008000395).
[2] Shenbai Zheng Yan Shi, Lihui Jia etc: China: Iron and Steel Research Journal Vol. 20(5) (2008), p. 79.
[4] Shenbai Zheng JingHong Ma and Zengfeng Li: Material Science Forum Vol. 654-656(2010), p. 226

For the purpose of numerical simulation in this study, the Coulomb friction law is assumed to govern friction material behavior in the sliding platform, and the friction materials are assumed to have an equal static and dynamic friction coefficient.
Acknowledgements The authors would like to thank the National Science Council of the Republic of China (Taiwan), for financially supporting this research under Contract No.
Aldemir, Optimal control of structures with semi-active tuned mass dampers, Journal of Sound and Vibration. 266 (2003) 847-874
Nagarajaiah, State of the art of structural control, Journal of Structural Engineering (ASCE). 129 (2003) 845-856
Chu, Optimal direct output feedback of structural control, Journal of Engineering Mechanics (ASCE). 119 (1993):2157-2173

Experiment Materials: PP, 230 powder, the Baling Subsidiary Company, Sinopec Group.
The raw materials including PP, wood-flour, and additives were mixed together for 5 min in the SHR high-speed blender.
Plastics Science and Technology, 2010, 38(2): 36-39.
Forestry Science and Technology, 2006, 31(1): 32-34.
Journal of East China University of Science and Technology(Natural Science Edition), 2009, 35(1): 44-50.

Owing to its high chemical stability on ferrous metal, cBN can be widely used to machine hardened steel, bearing steel, high-speed steel, high temperature alloys, thermal spray materials, carbide and other difficult-to-cut materials.
Therefore, cBN is considered to be one of the most promising tool materials in the 21st century.
[5] Yu J. and Matsumoto S, Synthesis of thick and high quality cubic boron nitride films by r.f. bias assisted d.c. jet plasma chemical vapor deposition, Diamond & Related Materials. 13 (2004) 1704-1708
L., Review of advanced in cubic nitride film synthesis, Materials Science and Engineering.
Oechsner, On the stoichiometry condition for the formation of cubic boron nitride films, Applied Physics a-Materials Science & Processing. 78 (2004) 681-685.

Fatigue Properties of Spherical Graphite Iron Crankshafts Mingtu MA1, a, Zhigang LI1, Hongliang YI1 and Hao ZHANG2 1 Department of Materials Science and Technology, Chian Chongqing Automobile Research Institute, Chongqing 400039, P.
To save the cost of producing of parts, casting may be used to replace forging via enhancing the properties of traditional materials by high technology.
As a consequence, the QT800-3 is chose as the substitute materials for crankshafts due to its similar properties to the heat treatment 40Cr forging steel.
The equation indicates that the existence of crack C brings about the decline of fracture strength of materials, and then if the C is bigger, the fracture stress will be smaller.
Dong: Strength of Metallic Material, Science Publishing, Beijing (1989).

Synthesis of the Thermoelectric Thin Films of Ca3Co4O9 and Ca3Co2O6 using Pulsed-laser Deposition Techniques ZhiDong Li 1, a, Dong Wu 1,b, KunYu Zhao 1,c, Hui Zhang 1,d 1Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, People's Republic of China a lzd_kmust@126.com, b 837515177@qq.com , c kyzhaoy@yahoo.com.cn, d harry_zhang71@163.com Keywords: Thermoelectric thin film; Ca3Co4O9; Ca3Co2O6; Pulsed-laser deposition Abstract.
Introduction Thermoelectric materials can conduct/achieve the mutual conversion of thermal energy to electrical energy), which provides an effective way to use wasted heat to generate electrical energy and make refrigerate devices by Peltier and Seebeck effects. [1,2] Since the time when NaCo2O4 were discovered with high thermoelectric power at 300 K, [3] the layered cobalt-oxide have been the subject of extensive interest in the community of solid state physics and materials research.
Calcium nitrate tetrahydrate, cobalt nitrate hexahydrate and ethanol were used as starting (raw) materials.
The XRD patterns indicate that Ca3Co4O9 targets prepared by sol-gel method were single phase polycrystalline materials.
B Vol.62(2000), p.166 [11] Kouta, I.Hisanori, S.Kubota: Journal of Alloys and Compounds Vol.358(2003), p.210-215 [12] H.

Liu: Materials and Design.Vol.
Liu: Materials Science and Engineering A.
Liu: Materials Science and Engineering A.
Zhang: Materials Letters.
Liu: Materials Science and Engineering A.