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Materials and Methods Materials Chitosan powder used is a shrimp-based product with a degree of deacetylation of 87.4%, the solubility in acetic acid is 99.4%, and the molecular weight of 900 kDa.
Series: Materials Science and Engineering, 196 (2017) 012039
Ruckenstein, Supported chitosan-dye affinity membranes and their protein adsorption, Journal of Membrane Science 117 (1996) 271-278
Roy, Preparation of Chitosan from Shrimp Shell and Investigation of Its Properties, International Journal of Basic & Applied Sciences 11 (1) (2011) 77-80
Ismail, Antimicrobial and anticancer activities of silver nanoparticles synthesized from the root hair extract of Phoenix dactylifera, Materials Science and Engineering: C 89 (2018) 429-443

The study of the electric erosion phenomenon of contact materials is significant to improve its service life and reliability[1-5].
In recent years, many researchers have been interested in the study of arc erosion, surface morphologies and material transfer phenomenon of noble metal alloy contact materials[6-9].
In order to study the arc erosion mechanism, the surface morphologies, microstructures and material transfer phenomenon of Pt-Ir-Zr alloy contact materials were carried out by electrical contact test machine and SEM in present paper.
Acknowledgment This work was financially supported by the Science and Technology Innovation Team of Kunming (2012-01-01-A-R-07-0005), Innovation Team of Yunnan Province(2012HC027) and the Province and University Science and Technology Cooperation Project of Yunnan Province(2012IB002).
Corresponding Author Saibei Wang, 77481311@163.com, 86-871-8328841 or +86 1580 886 3053  References [1] Wei Chen, Yi Zhen: Precious Metals No.33 (2012), p. 3 [2] Miaonong Chen: Electrical Materials No.2 (2005), p. 38 [3] Leung C L, Lee A: IEEE Transactions on Components, Hybrids, and Manufacturing Technology Vol. 14 No.1 (1991), p.101 [4] Choi Y S, Kim D L, Kim M S, et al: IEEE Transactions on Applied Superconductivity Vol. 21 No. 3 (2011) , p.1050 [5] Chi H L, Anthony L: IEEE Transactions on Components, Hybrids, and Manufacturing Technology Vol. 15 No. 2 (1992), p.146 [6] FRÉDÉRIC PONS, MOHAMMED CHERKAOUI, IDRISS ILALI and SERGE DOMINIAKE: Journal of ELECTRONIC MATERIALS Vol. 39 No. 4 (2010), p.456 [7] Rong M Z, Zhao Z Y, Yang W: Low Voltage Apparatus No. 5 (1998), p.1 [8] Deng Z M, Lu Y Shi A, et al: The Chinese Journal of Nonferrous Metals Vol. 11 No. 2 (2010), p.144 [9] Fangfang Liu: Precious Metals Vol. 28 No. 3 (2007), p.24 [10] Jing Li: Low Voltage Apparatus No.9 (

Materials and Methods Experimental Materials Sample: As a sample, corncob with gelatinous membrane was picked up from vinegar trickling tower in WeiChunYuan Food Limited Liability Company, Guiyang, Guiyang City, Guizhou Province.
Chandra: Journal of Industrial Microbiology.
[10] Xiangjun Qi, Jinxia Gou, Yanan Di and Hua Zhang: Journal of Cellulose Science and Technology.
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Miros: Oxide inclusions in steel welds of car body, Materials Science Forum, vols. 636-637, 2010
Borek, Hot-Working Behaviour of Advanced High-Manganese C-Mn-Si-Al Steels, Materials Science Forum 654-656 (2010) 266-269
Borek, Hot-rolling of advanced high-manganese C-Mn-Si-Al steels, Materials Science Forum 706/709 (2012) 2053-2058
Borek, Microstructure evolution of C-Mn-Si-Al-Nb high-manganese steel during the thermomechanical processing, Materials Science Forum 638 (2010) 3224-3229., [14] Sitek W., Trzaska J., Dobrzański L.A., Modified Tartagli method for calculation of Jominy hardenability curve, Materials Science Forum, 575-578 (2008) 892-897
,Comparison of hardenability calculation methods of the heat-treatable constructional steels, JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, Vol. 64, Issue: 1-3  (1995)  117-126

Ammonium perchlorate (AP) Another ingredient in composite propellant is the oxidizer, which can be referred to as the material that whose function is the supply of oxygen or oxidizing materials for deflagration of a solid propellant [25].
Defence Science Journal. 57 (2007) 435-442 [10] Ide K.M.
Journal of Hazardous Materials. 164 (2009) 549-554
TA of HTPB Mixtures with Some of The Energetic Materials-Determination of Effective Factors.
Defence Science Journal. 1989. 39: 147-155

Introduction Grain-oriented silicon steels have a large market in the field of soft magnetic materials.
Lasers have been very useful tools for the processing or heat treatment of many materials in the field of metal processing.
Molian: Journal of Materials Processing Technology, Vol. 112 (2001) No.2-3, p.199-204
Riehemann: Journal of Magnetism and Magnetic Materials, Vol. 292 (2005), p.210-214
Takacs, et al: Journal of Magnetism and Magnetic Materials, Vol. 304 (2006) No.2, p. 495-497.

Yasuda: Journal of Crystal Growth Vol. 244 (2002), p. 384
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Waku: Science and Technological of Advanced.
Materials Vol. 2 (2001), p. 67

Therefore, managers should as far as possible to make human-oriented, and to provide staff with necessary material compensation.
Acknowledgement This work was financially supported by the Youth Fund of Luoyang Institute of Science and Technology (2009QZ33).
References [1] Xinmei Zhang, Guohua Chen, China safety science journal, vol.14 (2004), p.59 (in Chinese) [2] Mingyue Cai, Shengwu Gong, Xibing Li, Journal of safety science and technology, vol.4 (2008), p.74 (in Chinese) [3] Liangjun Cai, Lei Huang, Liugen Lv, Advanced Materials Research, vol. 524-527(2012), p.2982 [4] Xiaoxue Ma, Jun Zhang, Journal of dalian maritime university, vol.37 (2011), p.91 (in Chinese) [5] A.C.
Igboanugo, International Journal of Engineering Research in Africa, vol.1 (2010), p.29 [6] Hiromitsu Kumamoto, Ernest J.
Probabilistic risk assessment and management for engineers and scientists, Second Edition, NewYork: IEEE Press, 1996 [7] Mao Shengye, Qin Xianjin, Yu Tianwang, Key Engineering Materials, vol.467-469(2011), p.7

Among these, carbon materials have significant advantages in providing electronic transport channels for pure silicon materials due to the network structure and hierarchical pore structures, and can accommodate the volume expansion of silicon materials.
In order to further improve the properties of the materials, high conductive materials, such as carbon-nanotubes and graphene, are introduced into the silicon material.
The effect of different ratio of raw materials on the performance of Si@PR-C/Graphite is further study.
Materials Letters, 2017,199:84-87 [11] Xiaotian Li, Dandan Yang, Xiaocun Hou, et al.
Interweaved Si@C/CNTs&CNFs composites as anode materials for Li-ion [J].

[3] Qi Xiao, Chi Yao:Materials Chemistry and Physics Vol. 130 (2011), p. 5-9
Murugesan: Journal of Hazardous Materials Vol. 161 (2009), p. 336-343
Stephen:Journal of Molecular Liquids Vol.181 (2013), p. 133-141
Sengodan:Materials Science in Semiconductor Processing Vol.11 (2008), p. 6–12
Bahadur:Microporous and Mesoporous Materials Vol. 134 (2010), p. 195-202