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Different environmental conditions affect the properties of composite materials and determine their service lives.
So many researches are focusing on the effect of accelerated aging on the properties of composite materials.
The materials used were two types of woven (2/2 Twill, 8 Harness Satin) glass fiber, and 8 Harness Satin carbon fiber in a polyetherimide matrix.
Ray: Journal of Colloid and Interface Science, 2006(298), p. 111–117 [2] Viña, J., Castrillo, M.A., Argüelles, A., Viña, I.: Polymer Composites, 2002, 23 (4), p. 619 [3] Zenasni R., Bachir A.S., García M.A., Argüelles A., Viña, J.: Science and Engineering of Composite Materials, 2004, 11(4), p. 225 [4] K.
Hogg: Materials and Design, 2008(29), p. 1300 [5] Y.Z.

Influences of different surface treatments on titanium substrate to HA/TiO2 bioactive coatings Shengjiang Wu, Huiping Shaoa and Ran Wei School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China aemail: shaohp@ustb.edu.cn Keywords: hydroxyapatite; titanium alloy; electrophoretic deposition; composite coating Abstract.
Porous structure of the organization is not only beneficial to cell adhesion, but also play an important role in mechanical properties, and they can meet the requirements of implanted materials [2].
Titanium alloy surface coated with HA has good biological activity, and makes the implanted materials with excellent mechanics performances of titanium and favorable biological properties of HA ceramic, which has become one of hot topics in biomedical materials research currently [3].
Materials Engineering. 2002, 11: 35
Journal of Biomedical Engineering, 1999, 16: 7

Department of Electronic Science, New Arts, Commerce and Science College, Ahmednagar – 414001 (M.S.)
Experimental Details Materials The chemicals used are analytical grade.
Deshpande, Journal of Material Research and Technology, (2016) 1-6
Shim, Materials Today: Proceedings 5 (2018) 7743–7747
Mancharkar, National Conference on Advanced Materials and Applications, Pune. (2016) 150-151

Based on the evaluation index system, 53 kinds of energy plants growing in our country were selected to be used as biodiesel raw materials.
In order to provide enough high quality raw materials to the biodiesel production, it is necessary for us to analyze the plantation potential of P. chinensis.
Materials and methods Study Area.
Science & Technology Review.
Chinese Journal of Agrometeorology.

Study on Load Control and Optimization of Rotary Forging Method for Heavy and Thick-walled Container Head by FEM Menghan Wang1, a, Dong Xiang1,b , Yufeng Li1,c 1 College of Material Science and Engineering, Chongqing University, Chongqing 400044, PR China awmh@cqu.edu.cn , bd.xiang@cqu.edu.cn , cliyufeng11@126.com * Corresponding author: College of Material Science and Engineering, Chongqing University, Chongqing 400044, PR China.
Flow stress is important because in material-forming process, forming loads, stresses and strains depend on part geometry, friction, and the limit flow stress of the deformation material [1].
Acknowledgement The authors would like to thank the support from Natural Science Foundation of Chongqing Key Project (No. 2009BA4065).
Yang: Journal of Mechanical Science and Technology 21(2007):1566-1572 [3] Q.
Yang: Journal of Material Science Forum 532-533:861-864 (2006) [5] A.

One of the major drawbacks of RP is that only a selected range of materials can be processed directly. however, most materials used in the commercialized RP systems are so far neither biocompatible nor biodegradable and are not suitable for direct use in the fabrication of scaffolds.
The indirect RP fabrication method extend the range of materials that can be used in tissue engineering including biocompatible and biodegradable polymers, either biosynthetic or naturally derived, can be processed to satisfy specific condition of scaffolding.
Conclusion Although the RP technique has its advantages, the manufacturing processes limit the number of polymeric materials that can be used for direct RP fabrication.
Naughton: Science 295, 1009–1014 (2002)
Giordano, et al: Journal of Controlled Release, (1996), Vol. 40, pp. 77-87

Fig. 4 3D expression of railway and road (Multiage-Paradigm Company，2001) The methods mentioned above are similar, mainly by setting textures and materials on the road surface to achieve the road expression with diverse levels and building materials.
Railway has the highest level in all kinds of roads, which can be characterized in 3D environment by the rail that is similar to the real world or by superimposing railway pictures on the road surface, as well as by applicable materials after vector modeling.
Utilizing the approach stated above, the road level can be demonstrated by adopting different width, height, materials and textures.
JOURNAL OF HYDROELECTRIC ENGINEERING,25(3):40-44 [3] Geoff Leach,1992.
,Sibson, R,1978.Computing Dirichlet Tessellations in the Plane, Computer Journal, 21,:168-173 [7] Lawson, C.L,1977.

Machining gap of the electrode wire Since the vibration of the electrode wire during machining will occur when the vibration to a nearby surface occurs when the spark discharge, the surface of the material erosion, and will put the power wire into the other side.
References [1] XIAO Ji-ming, SU Jun, YUAN Qi-long, KONG Ling-fei: Journal of Xi’an University of Technology Vol. 25 (2009), p. 333 [2] Liao Jianxia: Mechanical Science and Technology for Aerospace Engineering Vol. 29 (2010), p. 936 [3] SONG Hai-chao: Machine Building & Automation Vol. 36 (2007), p. 44 [4] Chakraborty Shankar S K G: Int J Adv Manuf Technol Vol. 40 (2009), p. 1102 [5] Liu Zhidong, Wang Zhenxing, Zhang Yan: China Mechanical Engineering Vol. 22 (2011), p. 385 [6] Shajan K, Kamal M, Shunmugam M S: Journal of Material Vol. 142 (2003), p. 182 [7] Liu Zhidong, Qiu Mingbo, Wang Wei, Tian Zongjun: Acta Aeronautica et Astronautica Sinica Vol. 6 (2010), p. 1288

References [1] LI Hua, ZHANG Zhongen, TANG Ermei: Journal of Disaster Prevention and Mitigation Engineering.
Vol. 32(2012), p.459-462(In Chinese) [2] LIU Xuekai, ZHAO Dong, LIU Haiyang:Applied Mechanics and Materials.
Vol. 11(2012), p.62-65(In Chinese) [4] WU Xiaoyuan, CHEN Zhongji, WANG Shidong etal: Journal of Anshan University of Science and Technology.

The Application of Clustering Analysis in Medical Expenses Data Mining Pei Shen1, a, Jikai Zhang2,b , Haiying Hua1,c 1 School of Information Science, Guangdong University of Business Studies, Guangdong Guangzhou 510320, China 2 Guangdong Center for Disease Prevention and Control, Guangdong Guangzhou 510300, China ashenpei2000@263.net, bjnuzjk@163.com, chrice77@sina.com Keywords: Data mining, Clustering Analysis, Medicare Expenses.
Materials Survey of viral hepatitis medical costs in Guangdong Province gets 115 cases of patient data.
References [1]ZHANG Ji kai, HU Yi ling, HU Chao feng, et al: Cluster analysis applied in the epidemiological stratification analysis, Chinese Journal of Epidemiology.Vol.7(2003),p.615 [2]Sean N.Ghazavi, Thunshun W.Liao: Medical data mining by fuzzy modeling with selected features.
[5] Xu Lei, HE Jia: Application of decision tree based on entropy in traditional Chinese medicine symptom analysis of chronic gastritis, Academic Journal of Second Military Medical University.