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Project supported by the National Science Found of young Scholar of Northeast Petroleum University (No. 2012QN114) and the open fund of Key Laboratory of petroleum and natural gas chemical industry for Hei Longjiang colleges and Universities (No.
[2]He Shu-Mei, Liu Jing-Lan．Study on the Determ inationM ethod of Flavone Content in Tea [J]．Chinese Journal of Analytical Chemistry．2007，35：1365~1368
[4]Nwuha V．Novel studies on membrane extraction of bioactive components of green tea in organic solvents：Part Ⅰ[J]．Journal of food engineering．2000，44（4）：233～238
[5]MAWei hua, ZHONG Qin．Extraction of Caffeine from Tea with Supercritical CO2 [J]．journal of Nanjing University of Science and Technology．2007，31（6）：771-774
Research on the Experim ental Technology of Extracting Caffeine from Green tea [J]．Journal of Anhui Agr. i Sc.i .2009, 37( 8 ): 3598- 3599

Materials’ definition is an important part of numerical simulation, it will directly affect the accuracy and reliability of the results[6], and the stress-strain curve in tension and compression is a function of the materials properties.The stress-strain curve of shape memory alloy is shown in Figure 3.
Continued load, the material shows plastic deformation when stress is more than yield stress0 of materials and thus the materials’ stiffness significantly decreases.
Thus, materials of NiTi-shape memory alloy should satisfy the parameters of Equation (1) and Table 1 and by Abaqus software simulation calculations; patellar we assume is linearly elastic, elastic modulus E=12 000MPa, poisson ratio=0.3
Memorial metal ball for the treatment of avascular necrosis of femoral head: Chinese Journal of Surgery.
Analysis of Mechanical Characteristics on Stress Corrosion Cracking Tip: Xi`an University of Science and Technology [Master’s thesis], 2012, p.14

Ravisankar2 1Department of Metallurgical and Materials Science Engineering, National institute of Technology, Tiruchirapalli 620 015, India. 2Associate Professor, Department of Metallurgical and Materials Science Engineering, National institute of Technology, Tiruchirapalli 620 015, India. 1ssureshrec@gmail.com, 2brs@nitt.edu Keywords: Diffusion bonding/welding, Interface, Ultrasonic nondestructive testing.
Angelo, Indian journal of Engineering and materials sciences, Vol 16, pp 331-334,(2009)
[2] EvrenAtasoy, NizamettinKahraman, Materials Characterization 59 (2008) 1481–1490
Araee, Materials Characterization 61 (2010) 626–634
[4] Bulent Kurt, Journal of Materials Processing Technology 190 (2007) 138–141

., 2006, Australia 2 Institute for Composite Materials (IVW GmbH) Technical University of Kaiserslautern, Kaiserslautern, D-67663, Germany a ye@aeromech.usyd.edu.au Keywords: Nano-silica, CF/EP composites, Interlaminar fracture toughness, Delamination.
It was found that the fracture toughness of the nano-silica modified epoxies and the interlaminar fracture toughness of nano-silica modified CF/EP composites have been increased significantly (>50%), while the strength and modulus of the materials remain unchanged or slightly higher.
Some CT specimens in each group were post cured at 110 o C for one hour to further increase the cross-linking density of the materials.
References [1] Kinloch A J et al.: The Journal of Adhesion Vol. 79 (2003): 867-73
[2] Rosso P, Ye L, Friedrich K, Sprenger S: A Toughened Epoxy Resin by Silica Nanoparticle Reinforcement, Journal of Applied Polymer Science, accepted January 2005 [3] Xiao K, Ye L, Kwok Y S: Journal of Materials Science Vol. 33 (1998): 2831-6. 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 10 20 30 40 50 60 70 Crack propagation length [mm] 0% Silica 4% silica GIC [kJ/m2]

Introduction Special properties of micro- and nanocomposite materials are different such as dispersion hardening, self-lubrication, hot oxidation resistance, corrosion and wear resistances [1-4].
Commercially pure titanium (CP-Ti) discs (20 mm Ø × 5 mm) were the cathode materials and the substrates were mechanically polished, ultrasonically cleaned in acetone for 10 minutes.
Buschow, F.R. de Boer, Effect of grain size and magnetocrystalline anisotropy on exchange coupling in nanocomposite two-phase Nd-Fe-B magnets, Journal of Magnetism and Magnetic Materials, 223 (2001) 215-220
Dehghanian, Study of nanocrystalline plasma electrolytic carbonitriding for CP-Ti, Materials Science, 44 (2008) 145-145
Sabouri, Effect of frequency and duty cycle on corrosion behavior of pulsed nanocrystalline plasma electrolytic carbonitrided CP-Ti, Journal of Materials Science, 43 (2008) 1624-1629

Grimes: Journal of Materials Research.
Tokudome: Journal Materials Chemistry.
Kile: Advanced Materials.
Grimes: Solar Energy Materials and Solar Cells.
Liou: World Academy of Science, Engineering and Technology.

The successful formation of the Fe3O4@ZnO/TiO2 nanocomposite represents a significant advancement in the synthesis of materials.
Our results can serve as a basis for subsequent research on the synthesis and application of magnetic materials. 2.
Asim, “Synthesis of Fe3O4 nanocrystals using hydrothermal approach,” Journal of Magnetism and Magnetic Materials, vol. 324, no. 24, pp. 4147–4150, Dec. 2012, doi: 10.1016/j.jmmm.2012.07.023
Jiles, Introduction to Magnetism and Magnetic Materials.
Luo, “Crystallite size effect on saturation magnetization of fine ferrimagnetic particles,” Journal of Magnetism and Magnetic Materials, vol. 136, no. 1–2, pp. 176–182, Sep. 1994, doi: 10.1016/0304-8853(94)90462-6

According to the production of raw materials, adipic acid production process can be divided into cyclohexane process and butadiene process, the cyclohexane process is the production of adipic acid main technological [2].
Acknowledgment Supported by the Natural Science Foundation of Hubei Province (No. 2005ABA053).
Liu: Chinese Journal of Applied Chemistry, Vol.23(2006)No.1.p. 26(In Chinese)
Bai: Chinese Journal of Organic Chemistry, Vol.26(2006)No.2.p. 207(In Chinese)
Shu: Journal of Hainan Normal University(Natural Science), Vol.18(2005)No.3.p. 248(In Chinese)

Journal of Magnetic Materials and Devices, 2007, 28(4):18-21
Journal of Inorganic Materials, 2001, 16(6): 1151-1155
[11] Brwen A, Derby B, Self propagating high temperature synthesis of ceramic materials [J].
Journal of Materials Science&Engineering, 2003, 21(1): 68-71
Journal of Magnetic Materials and Devices, 2004, 35(4): 21-23.

Introduction With the continuous development of science and technology, bi-material which possesses many functions that single material doesn’t possess, are widely used in production, all areas of life.
As there are many defects in the interface of combination of materials, the bond strength is rather lower.
[2] Zhang Shaoqin,Yao Hesheng, Li Junlin: Key Engineering Materials.Vol. 385-387(2008), p. 585
International Journal of Solids and Structures.Vol. 46(2009) , p.3725
[6] Shih C F:American Society for Testing and Materials.