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However this definition is quite general and can cover all materials [1, 2].
Strong, History of Composite Materials - Opportunities and Necessities.
Tsai, Thermal conductivity of unidirectional materials, Journal of Composite Materials. 1 (1967) 166-173
Yang, The effect of heat-transfer passages on the effective thermal conductivity of high filler loading composite materials, Composites Science and Technology. 67 (2007) 1035–1040
Materials, vol. 3, 2003, pp. 1146-1149.

They made some parameters (the physical properties of finite element materials. geometrical features or boundary of structure) as the research object. by the sensitivity analysis for the parameters, they selected the sensitive parameter as the corrected object and transformed the finite elements updating problem into iteration optimization.
It can analyze and identify the material properties (elastic modulus, Poisson ratio, density, etc.).
Reduction of Stiffness and Mass Matrices [J].A1AA Journal, 1965, 3(2): 380-383
Journal, 1973, 11(6): 892-896
Chinese journal of applied mechanics . 2009(2): 88-294.

Materials Science and Engineering. (2001) A302:37-45 [3] A.A.Luo.
Materials and Design 24 (2003) 671–679
Journal of Materials Processing Technology 153–154 (2004) 978–985
Journal of materials processing technology. (2009) 209. 3060-3068 [10] K.
Novel Materials Processing by Advanced Electromagnetic Energy Sources, 19-22(2004)313-316

Because of the quickly flow of the plane triangle regional material, here it is not easy to form thinning.
Acknowledgements This work was supported by the High-end CNC Machine Tools and Basic Manufacturing Equipment Special Major Science and Technology Project (Grant No. 2011ZX04001-011) and Industry Project of Qiqihar City (Grant No.
[3] Meng Yun, Cheng Peiyuan and Peng Yong: Automobile Science & Technology, No. 2 (2010), p. 73-75
Labergere: Journal of Materials Processing Technology, Vol. 125-126 (2002), p. 565-572
[6] Li-Ping lei, Dae-Hwan kin and Sung-Jong Kang: Journal of Materials Processing Technology, Vol. 114 (2001), p. 201-206.

Introduction Due to environmental impact persistent of non biodegradable materials is growing global concern, biodegradable composite are one of the key factors to become an acceptable alternative.
More generally, it seems accepted that applications of different materials developed will be suitable for certain areas, but general applications remain limited.
However, the oil products represent only 10% of the total biomass, which the remaining 90% consist of waste materials [3].
Ogawa, Journal of The Adhesion Society of Japan. 42(2) (2006) 45-55
Sain, Journal of Applied Polymer Science. 97 (2005) 2014- 2025

The behaviour of the annular plates under vibrations differs from mode to mode, with material, with cross section, crack location, crack depth, crack length and differs with materials.
In the present study the chosen materials were Aluminium, Inconel, Rene 77, Polycarbonate Plastic, Cast Iron, Grey Iron, Stainless Steel, Ceramic Matrix Composite and Nimonic 75.
Several sets of modal analysis has been conducted with varying boundary conditions, number of cracks and different materials.
[11] Tzuo-Liang Luo, James Shih-Shyn Wu, Jui-Pin Hung, A study of nonlinear vibrational behavior of cracked structures by the finite element method, Journal of Marine Science and Technology 13(3) (2005) 176-183
Science 47 (2009) 1025–1037

These properties make any materials with nanofibers structures can be utilized for a variety of applications [2].
It has been widely used as a medium for materials that cannot be electrospun.
Ramakrishna, Review: the characterization of electrospun nanofibrous liquid filtration membranes, Journal of Materials Science 49, 18 (2014) 6143-6159
Beni, A novel fixed-bed reactor design incorporating an electrospun PVA/chitosan nanofibersmembrane, Journal of Hazardous Materials 280 (2014) 788-796
Sosiati, A Simple Way of Producing Nano Anatase TiO2 in Polyvinyl Alcohol Fibers, Advanced Materials Research 896 (2014) pp 45-48

Study on Misalignment of Focus Position in Laser Metal Deposition Shaping Processing Fengjie Tian1,2,3,a, Weijun Liu 1,b , Xiaofeng Shang1,c and Guang Yang1,3,d 1 Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China, 110016 2 Shenyang Ligong University, Shenyang, China, 110168 3 Graduate School of Chinese Academy of Sciences, Beijing, China, 100039 a tianfj@sia.cn, bwjliu@sia.cn, cxfshang@sia.cn, dyangguang@sia.cn Keywords: Laser metal deposition shaping, Focus position, Misalignment, Shaping quality Abstract.
Lu: Ordnance Material Science and Engineering, Vol. 30 (2007) No.5, pp.68-72
Li: Direct Laser Fabrication of 3-Dimentional Metal Parts Based on Laser Cladding (Ph.D., Huazhong University of Science and Technology, China 2004).
Liou: Journal of Materials Processing Technology, Vol. 168(2005), pp.230-244
Kennedy: Journal of Materials Processing Technology, Vol. 122 (2002), pp.63-68

Metal matrix resin composite materials mold with metal (such as aluminium, etc.) as substrate, the surface coating of metal resin material mold.
[3] S.O.Onuh, Y.Y.Yusuf: Journal of Intelligent Manufacturing,3-4 (1999)
[4] Haguer, Mansours, Salehn: Journal of Materials Science,2457-2464 (2004)
Xiang: Advanced Materials Research.295-299 (2011)
Ho: International Journal of Advanced Manufacturing Technology, (1999)

Constantly, the temperature is lower than 80% of the materials melting point[2].
The search expressed that mass materials upside transfers to front of its initial position after welding; The materials of mid transfer the rear of its initial position after welding ;The bottom materials of the weld take place in the rear of the initial position.
Recently friction stir welding process for joining of composite materials also shows good prospects[18].
Materials Review, 2007, 21 (1): 86-92 [17] YAO Jun-shan, ZHANG Yan-hua, WANG Guo-qing, et al.
Aerospace Materials & Technology, 2003 (4): 24-27 [18] Dawes C J, Thomas W M.