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Introduction Biodeterioration is an important factor impairing aesthetic, functional and other properties of leather and other organic materials and the products made from them.
The natural materials, also leather, can act as carriers for microbial growth.
E.E, Natural and Environment-friendly New Bactericide for Leather Industry Essential Oil of Origanum minutiflorum, Journal of Biological Science 5 (4): 455-457, ISSN 1727-3048. (2005)
ISTAP 2017, (2017), 475-484 [9] Lv, S., X., Yan, and R., Gao, Preparation and Properties of Copolymer of Methacrylic Acid and Acrylamide onto Degraded Chitosan Initiated by HRP/H2O2/ACAC, Applied Mechanics and Materials Vols. 80-81, Trans Tech Publications, Switzerland. doi:10.4028/www.scientific.net/AMM.80-81.396, (2011) pp 396-399 [10] I.P.
P., Eds.; Elsevier Applied Science: New York, 1992, pp 34-40

Fu is tensile stress and Fy is yield stress of steel material.
References [1] A.L Johnson and G.Winter : Journal Structural Division, ASCE Proceedings Vol.92 (1966), p.97
Isozaki : Journal of Structural and Construction Engineering (Transactions of Architectural Institute of Japan), No.556 (2002), p159
Shin : An Experimental Study on Structural Behaviours of Single Shear Cold-formed Stainless Steel Bolted Connections with Two Bolts, Key Engineering Materials, Vols.452-453(2011), p.617
Kim : Finite Element Analysis on Structural Behaviours of Single Shear Cold-formed Stainless Steel Bolted Connections with Two Bolts, Key Engineering Materials, Vols.452-453(2011), p.613

Research of a Novel Low-Carbon High-Manganese Alloy Containing Boron Jianxin Guo1, a, Junyou Liu1, b and Jie Liu2, c 1 School of Materials, University of Science and Technology Beijing 100083.
Thus in recent years, wear resistant material which hard phase is mainly boride is getting more and more attention by materials experts home and abroad.
Experimental method The novel low-carbon high-manganese alloy containing boron is melted in the ZG-0.025 vacuum induction furnace, with charge materials of pure iron, graphite, pure silicon, pure manganese, pure chromium, pure titanium, Fe-B, N-Cr-Fe maser alloys and RE.
Mechanical properties and microstructures of a series of FCB alloys, Brisbane, The University of Queensland, (1992) p. 1 [7] Zhongli Liu, Yanxiang Li, Xiang Chen: Acta Metallurgica Sinica, (2007), p. 477 [8] Hanguang Fu, Zhiqiang Jiang: Acta Metallurgica sinica, (2006), p. 545 [9] Zhongli Liu, Xiang Chen, Yanxiang Li: Journal of Iron and Steel Research, (2009), p. 37 [10] H.Fu, Q.Zhou.
Z: Materials Science and Engineering Technology, (2007), p. 299 [11] Qilong Yong.

Introduction Aluminum based composite materials extensively used as materials for the applications which require high strength to weight ratio, high wear resistance and low density.
Experimental Details: Al2024 alloy was used as matrix material owing to its wide application in industrial sectors.
Venkat Prasat, Tribological Behaviour of Aluminium/Alumina/Graphite Hybrid Metal Matrix Composite Using Taguchi’s Techniques Journal of Minerals & Materials Characterization & Engineering, Vol. 10, pp.427-443, (2011) [5] J.T.
Lin.D.Battacharya V.Kecman Multiple regression and neural networks analysis in composites machining, Composite science and technology 63, pp.539-548, (2003)
Materials Science and Engineering: A Vol. 363, 1–2, 20 (2003)

Experimental Materials.
Wilson: Science, Vol. 337(2012), 183-186
Kötteritzsch: Macromolecular Materials and Engineering Vol. 296(2011), p. 551-561
Elsa: International Journal of Biological Macromolecules Vol. 46(2010), p. 173-178
Claude: Journal of Biotechnology Vol. 155(2011), p. 257- 265

The coating materials was CaHPO4·2H2O- CaCO3 mixture with-400 mesh and Ti powder with 20~40μm.
Since there is a great difference of line expansion coefficient between coating materials (CaHPO4·2H2O+CaCO3) and substrate, there exists larger thermal stress between substrate and coating in the process of solidification after laser cladding, method of gradient design was adopted.
Acknowledgement Liu Qibin gratefully acknowledges foundation supported by Department of Science and Technology of Guizhou Province (2005-0508) and Doctor foundation of Guizhou University.
Zheng Xuebin, Ding Chuanxian (2000)Journal of inorganic Materials(In Chinese), 15: 897-902
Wang Yingjun, Ling Chengyun, Chen Kai, et al (1998) Journal of inorganic materials (In Chinese), 13: 529-533

Owing to the properties of materials, the acceleration of stackers can not be improved too much by just considering friction factors.
The materials of the driving wheel and the rail are set as plastic, the elastic modulus E＝2.1e5Mpa, Poisson ratio µ=0.3.
Acknowledgements The present investigation has been sponsored by the Natural Science Foundation of Liaoning Province of China (No.20092056) and the Project of Ministry of Housing and Urban-Rural Development (No.2009-k8-3).
(In Chinese) [6] Zhiwen Zhang,Heqian Yu: submitted to Journal of Materials Research (1998).
(In Chinese) [7] Qiang Li, Yu-lun Qiu: submitted to Journal of Polyurethane Industry(2006).

Influence of the surface roughness of plasma-sprayed YSZ on LSM cathode polarization in Solid Oxide Fuel Cells Min Gao 1, 2 , Cheng-Xin Li1, Ming-De Wang2, Hua-Lei Wang2, Chang-Jiu Li*1 1.State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China 2.
On the other hand, the sol-gel process has been used to deposit nano-structured cathode materials.
Zhan Gao from School of Science for conducting XRD measurement.
Weber, Electrode reaction and electrochemical performance: Materials and technology development for low temperature SOFC, 41st battery symposium, Nagoya 2000, 1 [8] D.
Ivers-Tiffee, Journal of European Ceramic Society, 21(2001) 1813-1816

(1) The materials The strength of materials The corrosion caused by chloride ion is stress corrosion cracking.
Generally, the strength of materials is much higher, the tendency of stress corrosion is much bigger.
That is, the stress can improve the stress corrosion cracking sensitivity of materials in corrosion solution
Materials Corrosion Principles[M].
The Corrosion and Protection of Materials[M].

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