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Ridha Hambli[4] predicted the nonlinear connection between punch clearance and material elongation using FEM and ANN.
The material properties are shown as follows: elastic modulus E is 68600MPa; ultimate strength σb is 210.5MPa; yield strength σ0.2 is 100MPa; passion ratio μ is 0.33; density ρ is 2.78e-6 kg/mm3.
In forming process of sheet metal, the relationship between springback and factors such as dimensions of sheet metal, material property and shape of mold etc. is nonlinear.
Wang, FEM Analysis of Two-Axle Bending Technique, Mechanical Science and Technology, 22(2003)203-205 [2] FECIT Sci-Tech Product R&D Center , Neural Network Theory and MATLAB7, Electronic Industry Press, Beijing, 2005 [3] M.
Inamdar, Development of an artificial neural network to predict springback in air vee bending, The International Journal of Advanced Manufacturing Technology, 16(2000)376-381 [4] R.

Earth material and chips should be not dropped into the pre-molded hole which set as design.
The material of wall is gneiss, whose strength more than 40MPa, with two parallel faces.
Thickness of the material is more than 200mm and side length more than 400 mm.
Chinese Journal of Rock Mechanics and Engineering，25(2). 399-406 [2] ZHANG Yufang, and LI Qiping(2003).
“Analyzing Tension Force of Anchor Cable in Pile with Prestressed Anchor Cable. ”China Railway Science，24(2). 21-25 [3] SU Xingju(2003).

This is because when the heating temperature is getting higher and higher, organic compounds occurs a chemical reaction to produce the chemically stable and relatively low density material, for example CH4, CO2, water and so on, making the relative density and the amount of hydrocarbon decreased, methanation coefficient increased, the critical pressure increased, the critical temperature decreased.
Therefore, it can be directly used as raw Chemical materials and fuel.
After microwave heating treatment, the oil phase can be directly used as raw chemical materials and fuel, and more susceptible to be reuse
Acknowledgements This work was financially supported by Shanxi Provincial Natural Science Basic Research Program (2011JM2003) and Xi'an Petroleum University Graduate Student Innovation Foundation (2009001114).
Xi'an Petroleum University Journal, 2006, 19(1)：34～37.

Numerical simulation method can not only save a lot of manpower and material resources, but also can solve difficulties to fatigue test for large or complex welded joints in the laboratory.
Actual stress method establishes fatigue damage parameter based on actual stress field of welded joints, uses stress-life curve of material as damage criterion, and finally predicts fatigue life [3].
Acknowledgements The authors gratefully acknowledge the financial supports of the Natural Science Foundations of China through its Key Research Program (No. 50830203), the Specialized Research Fund for the Doctoral Program of Higher Education of China (No.20110143120003) and the Fundamental Research Funds for the Central Universities (WUT:2013-IV-019).
[3] S,Suresh, Fatigue of materials.
International Journal of Fatigue, 2009, 31(1): 88-101

Previous research indicates that the mechanical behaviors of H-beams may be greatly enhanced by refining the grain structures without changing the material composition.
This work is financially supported by the Science and Technology Development Program of Shandong (Grant No. 2010GGX10421).
The Hot Rolled H and Cut T Section (in Chinese) [2] Jianqing Qian: Progress in Steel Building Structures (in Chinese) Vol. 4(2002), p33 [3] S Y Kim, Y T Im: Journal of Materials Processing Tech.
Vol. 127(2002), p57 [4] M P Phaniraj,et al: J. of Materials Processing Tech.

localization.Because of these properties,we can produce a lot of excellent photoelectronic devices.These devices have been extensive uses.But when we introduce defect in the photonic crystal structure,we can get the better properties.Through introduce defect in photonic crystal,the defect mode will appear in photonic band gap.The frequency of photon what is the same of the defect mode is been confined the area of defect,others frequency of photo energy rapid attenuation.In this way,we can control transmission of the photon of the different frequency.Not only photonic crystal has this excellent property,and photonic quasicrystal also has.As everyone knows,the special construction of the photonic quasicrystal makes it has some excellent property,for example,it has the low index threshold when appear complete photon band gap[3];the photon band gap has nothing to do with direction;it has a lot kinds of defect modes.These excellent properties makes it become superior candidate object in photon band gap materials
and negative refraction materials,so the photonic quasicrystal has a wider application prospect.
Use two kinds of diamonds which they have same Length of a side and different interior angle proceed split joint,then put dielectric cylinders in the apex angle location of the diamonds.In this ten-fold photonic quasicrystal structure,the background material is air,the refractive index of the dielectric cylinders is n=3,the lattice constant and Length of a side is a=1mm,the radius of the dielectric cylinders is r=0.24a.From the Figure1,we can observe the ten-fold photonic quasicrystal structure model.
Pavelyev Graded photonic quasicrystals Image Processing Systems Institute of the Russian Academy of Sciences accepted April 27, 2012 [5] P.
SPIE, 2006, 6182: 61822I [6] Dongni Lu, Hongjue Shen,Jianli Yu,The Study on High Q Factor and High Transmission Efficiency of Two-dimensional Photonic Crystal Coupled Cavity Waveguide,Chinese journal of luminescence，33volume 11period 2012.11 [7] Kekuan Zang, Xiaohong Sun, Dahai Li,Simulation of Optical Communication Apparatus Based on the Comsol Software,Electro-Optic Technology Application,25volume 5period 2010.10

Svensson1,c 1 Physics Department/Centre for Materials Science and Nanotechnology, University of Oslo, P.O.
IS is widely used for characterization of oxides, like potential candidates for hydrogen storage materials where the main focus is on the amount of oxygen vacancies and the general conductance properties of the material.
Fjellvag: Journal of Applied Physics Vol. 102 (2007), p. 054513 Figure 5.

On the other hand, the numerical simulation is carried out with the powerful finite element code ABAQUS, using the material constitution we obtained from the experiments.
Materials and methods 2.1 Cell isolation and culture Neonatal rat myocardial cells are isolated and cultured from 1-3 days old rats routinely, as described previously [1, 2].
The material property of the micropipette is defined as an elastic solid whose Young's modulus is much larger than that of myocardial cell.
[6] Evan Evans, Barbara Kukan, Passive Material Behavior of Granulocytes Based on Large Deformation and Recovery After Deformation Tests, Blood, Vol 64, No 5 (November), 1984: pp 1028-1035
Bottino, Modeling Viscoelastic Networks and Cell Deformation in the Context of the Immersed Boundary Method, JOURNAL OF COMPUTATIONAL PHYSICS 147, 86-113 (1998) Fig. 6 The results comparison

There are a large number of inclined hole in aviation, aerospace, weapons and vehicle manufacturing industry, such as the slant-hole exhaust of the artillery shown in Fig.1，they are not only in quantity and difficulty material, but also higher quality requirements.
According to elasticity theory and metallic materials strength theory, when non-circular cross-section bar is twisted freely, at the taper angle of cross-sectional surface the shear stress is zero, and the maximum shear stress is in groove(that is, the most dangerous point), moreover, the cross section where the greatest stress of the maximum shear stress is dangerous surface, the cross-section with the pole cross-section is 45 degree angle[4-5].
Lu: Machine Manufacturing Vol.(1)(1995), p.36 (In Chinese) [2] X.H.Li: Research On Micro Hole Drilling Of Difficult-To-Cut Material(Beihang University, 2005) (In Chinese) [3] O.
SADDLE: Journal of the Japan Society for Precision Engineering Vol.69(9) (2003), p.1337 (In Japanese) [4] M.
Elastic Theory (Science Press, China 1986) (In Chinese)

Electrospinning processing and microstructural characterization of Ce0.78Gd0.2Sr0.02O2-δ fiber for a composite anode Chen-Chia Chou1, a, Chun-Feng Huang1,b, Firman Mangasa S1,c and Ying-Ying Wu1,d 1Advanced Ceramic Laboratory, Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan accchou@mail.ntust.edu.tw, bD9403608@mail.ntust.edu.tw, cM9803816@mail.ntust.edu.tw, dM9503513@mail.ntust.edu.tw Keywords: Electrospinning, Fiber, Fuel cell, Anode Abstract.
Therefore, we believe that if it is possible to use the newly co-doped ceria material owning higher ionic conductivity to substitute the commercial GDC electrolyte and to be the second phase of the cermet electrode, the working temperature and the performance of electrochemical devices should be sudden decreased and increased respectively.
Not only development of new material, but also increase of TPB amount using a nano-technique is another important issue in this study.
Phase identification of the sintered pellets was carried out using an X-ray diffractometer (M18XHF, MAC Science, Japan) with CuKα radiation.
Chou: Journal of material science and engineering Vol. 25 (2007), p. 851 [3] S.B.