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,International Journal of Hydrogen Energy,38,(2013) 13792
Mauritz, Materials Science and Engineering, C6,(1998) 121-133

(2) Constitutive equations: / 2 3 ij ij σ σ ε ε • •= , ( )//3 2 ij ij σ σ σ= , 3 2 ij ij ε ε ε • •  =     (3) Boundary conditions: jiij Fn =σ on FS , ii Uu = on US (4) where ijσ and ij• ε are the stress and the strain rate, respectively, σand •ε are the effective stress and the effective strain rate, respectively, jF is the force on the boundary surface of FS , and iU is the deformation velocity on the boundary surface of US .The weak form of rigid-plastic FEM can be determined by applying the variational method to Eqs. (1) -(4), i.e. 0= − + ∫∫∫ ⋅⋅ ⋅ dSuFdV KdV SF ii V V V V δ εδε εδσ (5) where V and S are the volume and the surface area of material
The present analyses adopt the following assumptions: (1) the die is a rigid body; (2) the billet is a rigid-plastic material; (3) the friction factors between the billet and the die are constant.
Acknowledgment The authors wish to thank the support from the National Science Council under grants NSC-98-2622-E-150-014-CC3 is also gratefully acknowledged.
Kim: International Journal of Machine Tools & Manufacture, Vol. 40 (2000), p. 2099 [4] DEFORM-3D User's Manual, Version 5.0, Scientific Forming Technologies Corporation, Columbus, OH, (2005)

Acknowledgements The authors would like to thank the National Nature Science Foundation of China (NSFC) for the supporting (Grant #50475167).
[2] Y.Maeda: KOYO Engineering Journal Vol.158E (2001), p.42 [3] Y.H.Wu: Hot-Isocratic Pressed Silicon Nitride Ceramic Ball Bearings (Liaoning Education Pulication, China 2003)
[4] Y.H.Wu, K.Zhang, H.Sun: Key Engineering Materials Vol.202 (2001), pp.185 0 0.1 0.2 0.3 0.4 0.5 0.6 160 270 450 800 140025004000 speed n (r/min) sphericity error Δδ（µm） 0 0.05 0.1 0.15 0.2 0.25 diameter removal rate Δ d(μ m/min)Δ δ Δ d Ps= 5.5 N/ball 170# /200# 0 0.1 0.2 0.3 0.4 0.5 0.6 2. 5 3. 5 4. 5 5. 5 6. 5 7. 5 8. 5 pressure Ps (N/ball) sphericity error Δδ（µm） 0 0.05 0.1 0.15 0.2 0.25 diameter removal rate Δ d(μ m/min) Δ δ Δ d n= 800r/min 170# /200# Fig.6 Relationship of sphericity error, diameter removal rate and lapping pressure Fig.7 Relationship of sphericity error, diameter removal rate and lapping speed

Variable-fidelity multidisciplinary design optimization based on analytical target cascading framework Jun Zhenga,Haobo Qiub,Xiaolin Zhangc The State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China azjlucia1209@126.com, bhobbyqiu@163.com, c z_xiaolin29@126.com Keywords: Multidisciplinary design optimization, Analytical target cascading, Variable fidelity, Approximation modeling Abstract.
Journal of Aircraft, vol. 38, pp. 1093-1101, Nov-Dec 2001
Collaborative Optimization Framework Based on the Interaction of Low- and High-Fidelity Models and the Moving Least Squares method. in 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Confere.

Material parameters. (1) C45 grade concrete with nonlinear behaviours: Elasticity modulus 34400MPa Axial compressive design strength 28.5 MPa Axial tensile design strength 2.45 MPa Poisson ratio 0.167 (2) Reinforcement as elastic behaviours: Elasticity modulus 210000 MPa Poisson ratio 0.3 (3) Other material's parameters can refer to the reference [4].
Information and Computing Science.
[5] Dong Xu, Yu Zhao and Jun Zhu: Journal of Tongji University, Vol.35 (2007), p. 1455

Isolation and Identification of A Mold Strain Producing Esterifying Synthetase and Study on Its Metabolies Dan Huang1, a, Yu Long Chu1,b , Zhi Chao Shang1,c , Yu Long Li1,d and Zhong Ming Lu2,e 1School of Biotechnology Engineering, Sichuan University of Science &Engineering, Zigong 643000,China 2 Luzhoulaojiao Co., Ltd., Luzhou 646000,China ahuangdan3212006@126.com, b chuyulon@163.com, c lanyingshang@163.com, d yulonli@163.com, ezhongmingl@126.com Keywords: Luzhou-flavor DaQu; Esterifying synthetase; Mold; Identification; Metabolite Abstract.
Materials and Methods Daqu.
[2] Liu Guangye, Lu Shiheng, Huang Deying: Chinese Journal of Biotechnology. 1995, (3): 288-290, In Chinese

Effects of N-doped Quantity and Current Density on Properties of TiO2 Films by Arc Ion Plating ShuJuan Zhanga, MingSheng Lib, Zhiqin Chenc and Junxi Hud Jiangxi Normal University of Science and Technology, Nanchang, 330013, China ashujuan866@163.com, bmshli@163.com, cjxczqin@126.com, dhujunxi@jxstnu.cn Keywords: TiO2, N-doped quantity, current density, arc ion plating.
Ghavami: Journal of Hazardous Materials Vol. 153 (2008), p. 1237

Degradation of Polyacrylamide in Oil Wastewater by Electrocatalytic Oxidation Lijuan YANG1,a, Yingying LI2,b, Mei TIAN1,2,c, Jing WANG2,d and Huihai CUI1,e 1 Physical Chemistry Lab, Harbin University, Harbin, China 2 College of Chemical Engineering and Materials Science, Heilongjiang University,Harbin, China aylj9400@sina.com, b18003666@163.com, cshl913@vip.sina.com(corresponding author) Keywords: polyacrylamide; electrooxidation; degradation Abstract.
[7] Yihua Wu, Hui Wu, Study on influencing factor of detecting PAM with turbidometry, Journal of Oil and Gas Technology, 31(2009) 4-8.

Science and Technology Information (Academic Edition) In Chinese (2008) [2] Xijing Qi, Shi Lun: Improve Research on Supervision Enterprise’s Credit System.
Construction Supervision, In Chinese (2005) [3] Wen Zhao, Jintao Zhu: Porter Five Forces Model and the Expand Application, Chinese Foreign, In Chinese (2009) [4] Kai Wang, Wei Tian, Jun Chen: Problems and Solutions the Supervision industry facing in Development, Liaoning Building Materials, In Chinese (2007) [5] Junjiang Zhang: The Effective Way to Enhance the Competitiveness of Construction Supervision Enterprises, Architectural Design Management, In Chinese (2009) [6] Jianfang Li: The Related Problems and Countermeasures on Construction Supervision Credit System, Real Estate Guide, In Chinese (2013) [7] Congcong Xie, Yongbo Yuan, Guojun Zhang: Project Management Enterprise Credit Evaluation, Value engineering, In Chinese (2008) [8] Jiayuan Wang, Hongtao Wang: Supervision Professional Liability Insurance System, Civil Engineering Journal, In Chinese (2004) [9] Yuping Zhang: Walk the Road to Make a Strong Project Management Supervision Enterprises, Coal Technology, In Chinese (

Effect of Reloading on Dynamic Recrystallization in Shock Deformed Aluminum Alloy ATROSHENKO Svetlana a *, DIVAKOV Aleksandrb, MESHCHEYAKOV Yuric and NAUMOVA Nataliad Institute for Problems in Mechanical Engineering, Russian Academy of Sciences, V.O., Bolshoy, 61, St.
Introduction Dynamic recrystallization (DRX) is usually considered to be a nucleation and growth process, whereby the new grains nucleate either homogeneously or heterogeneously along the original grain boundaries of the deforming material [2].
The material is continuously being deformed while new grains nucleate and grow within it.
Divakov, Dymat Journal. l (1994) 271