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At the same time, the enclosed air layer is a good material for heat preservation and insulation.
(SKLGP2010K017) and (ii) Natural science fund of youth of Ministry of Education of Sichuan province (09ZB009).
References [1] Xu Shu-fang et al: Journal of Xi'an University of Science and Technology, 2005, 25(4): 465-468 (in Chinese) [2] Wang Qiong-mei et al:Sichuan Building Science,2006,32(5):156-160(in Chinese) [3] Wang Gang et al:Sichuan Building Science, 2008,34(3):57-59(in Chinese) [4]Chung, Hee-San; Moon, Byoung-Wook; Lee, Sung-Kyung; Park, Ji-Hun; Min, Kyung-Won: Structural Design of Tall and Special Buildings, 2009, 18(7): 807-822
[5] Ronny Purba1 and Miche, Bruneau, F.ASCE: JOURNAL OF STRUCTURAL ENGINEERING, 2009,11:1367-1376 [6] ZHANG Bo-yi,DONG Li,ZHANG Su-mei:JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY, 2010, 42(8): 1221-1225(in Chinese) [7] XU Man,WANG Yu-yin,ZHANG Su-mei: JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY, 2010, 42(8): 1216-1220 (in Chinese) [8] In-Rak Choi, and Hong-Gun Park:JOURNAL OF STRUCTURAL ENGINEERING 2009,7: 785-796 [9] Junming Zhou, Y.
Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments, 3002-3010

Study of the preparation and property of oxygen reduction electrode based on polyaniline or polypyrrole Qing-hao Yanga, Tian-zhu Huangb College of Material Science and Engineering, Xi’an University of Science and Technology, Xi’an, 710054,China a yangxjtu@hotmail.com b huangtz1988@sina.com Keywords: Polyaniline, Electro-deposited, Oxygen reduction reaction, Cyclic voltammetery Abstract.
He: Journal of Molecular Liquids, Vol.171 (2012), p23
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Pašti and Miodrag Mitri: Journal of Power Sources, Vol.220 (2012) No.15, p306
Wang: Journal of Power Sources.Vol.152(2002), p1

Yet, wrinkle can be considered as reserving material at the bulging area temporarily.
Journal of Plastic Engineering.
Journal of Material Procession Technology.
Hodgson: Computational Materials Science(Deakin University, Australia 2009 ) [5] L.F Yang, F.J CHEN, Q WANG, X.C MAO.
Journal of Shanghai Jiaotong University, Shang Hai, China.

The effect of Ce addition on the isothermal oxidation behavior of Ni-20Cr alloy was focused in the work. 2 Experiments 2.1 Chemical composition of Ni-20Cr alloy The materials used in this investigation have nominal compositions of Ni-20Cr (Table 1) with additions of 0，0.042，0.094(wt)% Ce respectively.
Catalytic Partial Oxidation of Methane over Ni/CeO2 -ZrO2 -Al2O3 [J].Journal of Rare Earths，2007，25：311~315 [4] D.
Journal of Materials Science，1990，25：1724~1738 [7] P.
Effects of Ce and Si Additions to CoNiCrAlY Bond Coat Materials on Oxidation Behavior and Crack Propagation of Thermal Barrier Coatings[J].
Journal of Thermal Spray Technology, V15, N4, December 2006：640~651 [13] J.

Raw materials Cement: 52.5# ordinary portland cement, density is 3000kg/m3.
The best amount of cement is lower than 40% of the total amount of cementitious materials and higher than 320kg/m3，this test uses 530Kg/m3. sand ratio of ordinary waterproof concrete shall not be less than 35%, and 38% (616kg/m3) were selected,.
Journal of Geological Hazards and Environment Preservation. vol 6, pp.52-56, 2004
[2] Z.D.Wang, Research and Evaluation on the Deteriotation of Concrete Subject to Multi-factor, China building materials academy,Beijing, 2010
[6] Q.Y.Guan, X.Z.Zhang, M.G.Zhang, Microstructure Research on Hydraulic Carbonated Concrete, Sichuan Building Science, vol8, pp. 194-196, 2012

Introduction Magnesium alloys have been shown to have high potential as low-weight structural materials and recently there has been a significant increase in the usage of magnesium alloy in automobile, aerospace, computer, mobile phone and household components[1-2].
Experimental The materials used in the study were a commercial AZ91D magnesium alloy and the mischmetal with nominal composition of 50% cerium, 30% lanthanum, 12% neodymium and 6% praseodymium (mass fraction).
Platform science and technology for advanced magnesium alloy.
Journal of Rare Earths, Vol. 24(2006), p. 591-595
International Journal of Fatigue, Vol. 250(2003):p. 245-256

Construction and Building Materials.
Key Engineering Materials. 517 (2012) 450-457
Journal of Tropical Forest Science. 25 (2013) 400-409
Journal of Materials Science. 47 (2012) 4167-4177
Journal Materials Science. 49 (2014) 7497-7506

Materials and methods Fig. 1.
Lin: Materials Science and Engineering: A Vol. 516 (2009), p. 23
Korevaar: Journal of Materials Science Vol. 26 (1991), p. 1431
Schaffer: Metallurgical and Materials Transactions A Vol. 30A (1999), p. 457
Wang: Metallurgical and Materials Transactions A Vol. 34A (2003), p. 2655.

Materials and Methods Materials.
Ajmal, et al.: Journal of Hazardous Materials Vol. 87 (2001), p. 127 [4] SH.R.
Yang, et al.: Food Science Vol. 31 (2010), p. 87 [7] SH.D.
Hameed: Chemical Engineering Journal Vol. 156 (2010), p. 2 [9] G.F.
Han: Environmental Protection Science Vol. 30 (2004), p. 26

Jayaganthan, A study on the mechanical properties of cryorolled Al-Mg-Si alloy, Materials Science and Engineering A. 480 (2008) 299-305
Jayaganthan, Effect of rolling temperature on microstructure and mechanical properties of 6063 Al alloy, Materials Science and Engineering A. 492 (2008) 300-305
Kong, Mechanical properties of Al–Mg–Si alloy sheets produced using asymmetric cryorolling and ageing treatment, Materials Science and Engineering A. 568 (2013) 212-218
Jayaganthan, Influence of solutes and second phase particles on work hardening behavior of Al 6063 alloy processed by cryorolling, Materials Science and Engineering A. 528 (2011) 3147-3160
Cintho, Natural aging behavior of AA7050 Al alloy after cryogenic rolling, Materials Science and Engineering A. 593(2014)1-7