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Experimental Materials.
An: Journal of Composite Materials, Vol.42 (2008),p.173 2.
W.Y.Zhou, S.H.Qi and C.C.Tu: Journal of Applied Polymer Science, Vol. 104(2006),p.2478 5.
C.G.Ma, Z.M.Rong and M.Q.Zhang: Journal of Materials Engineering, (2002),p.40 (in Chinese) 17.
S.F.Li: New Chemical Materials, Vol. 30(2002),p.11 (in Chinese) 18.

The well-patterned materials have great potential utility in tissue engineering.
The study on the formation mechanism and preparation techniques of BC has become one of the most promising projects in materials science.
Materials and Methods Materials The microorganism used was A. xylinum (CCTCC M 207163).
Yang: Biomedical Materials. 2008（in press）
Gong: Polymer Journal. 40(2008),137 [10] S .

Materials and methods Test Materials and preparation of specimens.
Journal of Wood Science, 2001; 47:237--242 [7] Naresworo Nugroho.
Journal of Wood Science, 2000;46:68-74 [8] Guan M J, ZHU, Y.X; ZHAN X.A.
Journal of Wood Science, 2005;51:274-277 [12] Kilic M, Hiziroglu S.
[16] ASTM D 1667-87(Reapproved 1999) Standard methods for conducting machining of wood and wood-Base Materials [17] GB/T 12472.

The production and consumption of plastic materials has exceeded that of steel, aluminum and copper if it is calculated by volume and the plastic materials becomes to be the largest consumption material in the world.
Therefore, these three kinds of materials show obvious biodegradability.
This means that these two materials can not be biodegraded by these fungi.
Table 2 shows the biodegradability of different materials by size.
Briassoulis: Journal of Polymers and the Environment,Vol. 15 (2007), p. 125

Hadj-Hassen: Construction and Building Materials Vol. 25 (2011), p. 749 [2] Y.
Yuan: Safety Science Vol. 50 (2012), p.783 [4] D.D.Tannant, R.K.
Neilson: International Journal of Rock Mechanics & Mining Sciences, Vol. 45 (2008) p.941 [14] A.
Li: International Journal of Rock Mechanics & Mining Sciences, Vol. 47 (2010), p. 396 [18] D.H.S.
Shahrour: International Journal of Rock Mechanics & Mining Sciences, Vol. 45 (2008) p. 384

It has been determined that the application of a magnetic field during the directional solidification of materials can significantly reduce convective flow in the melt [6, 7].
Hunt: Journal of Materials Processing Technology Vol. 55(1995), p.76–84
Edmonds: Journal of Materials Processing Technology Vol. 83(1998), p.1-13
Hunt: Materials Science and Engineering A Vol. 280(2000), p.116-123
Gu: Journal of Northeastern University (Natural Science) Vol. 25(2004), p.48-50, In Chinese.

In addition to bacteria, fungi can also be used as a wastewater treatment material.
But overall, the organism is a kind of readily available materials; its environmental friendliness also determines the potential of this approach.
Journal of Salt Lake Research，2010，18（1）：53-57.
Journal of Qingdao University(Natural Science Edition)，2004，19(1)：87-92.
Journal of Anhui Agri.Sci.,2008，3（27）： 11979-11982.

We used the Thlaspi arvense Linn as a raw material, firstly isolated and purified two flavonoids compounds: Orientin and Isovitexin.
Experimental Materials.
Wang: Journal of Natural Resources, Vol. 8 (1993), p. 281-285 [2] Z.Z.
Gao: Journal of Northwest Forestry University, Vol. 16 (2001), p. 75-79 [5] L.J.
Zhao: Chinese Journal of Medical Science and Technology, Vol. 19 (2012), p. 3

The unique combination of high magnetization and paramagnetic behaviour opens these materials to a very wide range of applications.
Materials and Methods Preparation of Aqueous Leaf Extract of Datura Inoxia.
Nayak, Ecofriendly green synthesis of iron nanoparticles from various plans and spices extract, International Journal of Plant, Animal and Environmental Sciences 3 (2013) 68-78
Chandra, A green approach for the synthesis of gold nanotriangles using aqueous leaf extract of Callistemon viminalis, Materials Letters 65 (2011) 595-597
Wurtele, Natural plant chemicals: sources of industrial and mechanical materials, Science 228 (1985) 1154-1160.

Study on Forming Limit of Irregular Axial Holes Formed by Open-die Cold Extrusion Shuang-jie Zhang1,a Wen-hua Gu1 Xue-rui Dai 1,b Xin Xu1 Jun Li1 1 School Material Science ＆ Engineering，Hebei University of Science and Technology,Shijiazhuang, Hebei, 050018, China a zsjzlili@163.com b daixuerui@163.com Keywords: axial special-hole; open-die cold extrusion; forming limit; the largest reduction; the optimum cone angle Abstract.
Journal of North China Institute of Technology.19( 1998)298-301
Experimental Thermal and Fluid Science.27(2003)589-598
Journal of materials Processing Technology.160 (2005) 198-212
Journal of HeBei university of science and technology.2(2000)17-21