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This method is in the trend of phasing out because of wasting raw materials and consuming so much in subsequent machining, although its forging technology is simple.
Bai: Journal of agricultural machinery, Vol. 26 (1995) No.1, pp. 97-101.
Wang: Beijing university of science and technology journal, Vol. 23 (2001) No.2, pp:155-157
Xing: Journal of Mechanical Engineering, Vol. 45 (2009) No.1, pp.131-134 (In Chinese) [8] XueDao.Shu，ChuanMing.Li，and Z.H .Hu: Technology of University of Science and Beijing，Vol. 29 (2007)No.2, pp.159-161 [9] X.D.
Hu: Journal of Mechanical Engineering, (2010) No.3.

This research is supported by National Natural Science Foundation of China (Grant NO.2012Z0606).
Journal of University of South China (Science and Technology), 2007, 21(2):75-78
Journal of Steel Pipe. 2011, 12 (1):19 [6] Zhang Qing, et al.
Chinese Journal of Corrosion and Protection, 2003, 123, (11): 22
Journal of Oil, 2006, (2) : 141.

We find suitable material include natural biological materials, synthetic materials, compound materials, bio-derived materials and 3D-materials of neural stem cells tissue engineering by analyzing and summing up of the research which combine tissue engineering with NSCs transplant in past several years.
Synthetic materials.
Compound materials.
Bio-derived materials and nanometer materials.
Science vol. 276(1997), p. 66-71

In circumferential welding of general processed materials that are rotating, runout arises due to movement of the continuously melting part.
Nakakado: Transactions of the ASME, Journal of Engineering Materials and Technology, Vol. 122, p. 108-112 (2000)
Toyoda: Materials Science Forum, Vol. 512, p. 379-382 (2006)
Mikami: Materials Science Forum, Vol. 512, p. 19-24 (2006)
Toyoda: Transactions of the ASME, Journal of Engineering Materials and Technology, Vol. 129 (2007), in press

Erts, Materials Science and Engineering: C, 19 (2002), 15-19
Thomas, Journal of Materials Science, 32 (1997), 401-407
Thomas, Journal of Materials Science, 32 (1997), 1711-1715
Zeng, Journal of Applied Polymer Science, 84 (2002), 2768-2775
Wu, Journal of Applied Polymer Science, Accepted.

These materials are candidates for sensor applications [10-15].
Nedkov, 2010, Raman spectroscopy investigation of magnetite nanoparticles in ferrofluids, Journal of Magnetism and Magnetic Materials (322) Elsevier
Sirivat, 2012, Synthesis and characterization of magnetite nanoparticles via the chemical co-precipitation method, Materials Science and Engineering B 177, 421– 427
Xi, 2004, Synthesis of magnetite nanoparticles in W/O micro-emulsion, Journal of Materials Science 39, 2633 – 2636
Hristoforou, New monolithic three dimensional field sensors with high sensitivity, Journal of Optoelectronics and Advanced Materials, pp 1691-1697, 2006.

The raw materials can be in powder or liquid form with linear polyethylene of varying densities being dominant worldwide.
However, these materials possess modest mechanical properties which prevent them from being used in more advanced applications.
Materials and Preparation Medium density fibres supplied by the New Zealand Forest Research Institute in Rotorua were used in this study.
Robert: Third Asian-Australasian Conference on Composite Materials (ACCM-3) Proceedings, Auckland, New Zealand, 2002, 1 [3] D.R.
Rohtagi: Journal of Materials Science, Vol. 23 (1988), p. 381 [7] A.K.

Materials and methods Experimental Design.
Table 1 TOC, ON and C/N ratio of the investigated soil and organic materials.
Fig. 4 TOC of observed value and predicted value in mixed organic materials.
Yu, Chinese Journal Soil Science Vol. 28 (1997), p. 71 (in Chinese)
Shen, Chinese Journal Applied Ecology Vol. 18 (2007), p. 2503 (in Chinese)

It is light weight material with high strength to weight ratio and stiffness properties. [1-3]Composite materials are used in automotive and marine industries, furniture and building materials, civil and military applications, air and space crafts and many more.
Materials and Methods Materials Granules of PP were purchased from the Cosmoplene Polyolefin Company Ltd (401, Ayer Merbau Road, Singapore).
The utilization of sugarcane fiber in composite material is a source of materials which can be economical, eco-friendly and recyclable.
Khan, Production and Properties of Short Jute and Short E-Glass Fibre Reinforced Polypropylene-Based Composites, Open Journal of Composite Materials 2 (2012) 40-47
[22] Garcia, M., Vliet, G.V., Jain, S., Zyl, W.E.V. and Boukamp, B., “Polypropylene/SiO2 Nano Composites with Improved Mechanical Properties”, Reviews on Advanced Materials Science 6 (2004) 169–175

LCA is a process of evaluating the environmental impacts associated with a product, process, or activity by: identifying and quantifying the energy and materials used and the wastes released to the environment; assessing the impacts of those energy and material uses and releases to the environment; and identifying and evaluating opportunities for environmental improvements [9].
All emissions, energy consumption, materials and cost are based on this functional unit.
Acknowledgment This research was supported financially by the Key Project (No.71033005) from National Natural Science Foundation of China.
Hu, et al., To evaluate the environmental impact of copper slag as raw material of copper concentration using life cycle assessment method, Chinese Journal of Environmental Engineering 3 (2009) 349-353
Graduate University of Chinese Academy of Sciences, Beijing, China, 2007