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Online since: October 2014
Authors: Xin Jin, Xu Song Quan, Zhi Jing Zhang, Yang Yu, Liang Ma
Because of their brittle material and complicated structure, the force and the deformation of assembly must be considered.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (grant no. 51127004 and 1105036).
Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Natural Science Foundation of China.
,et al: ‘Lessons from Building Fusion Ignition Targets with the Precision Robotic Assembly Machine’, Fusion Science and Technology, Vol. 59,pp.70-77(2011)
[5] Zhao Hui, Yu Pu,et al: ‘ Research of Automatic Measurement Method of Stiffness of Small Size FlexibleParts’, Chinese Journal of Scientific Instrument: vol 22, June,49-50(2001)
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (grant no. 51127004 and 1105036).
Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Natural Science Foundation of China.
,et al: ‘Lessons from Building Fusion Ignition Targets with the Precision Robotic Assembly Machine’, Fusion Science and Technology, Vol. 59,pp.70-77(2011)
[5] Zhao Hui, Yu Pu,et al: ‘ Research of Automatic Measurement Method of Stiffness of Small Size FlexibleParts’, Chinese Journal of Scientific Instrument: vol 22, June,49-50(2001)
Online since: January 2012
Authors: Qin Xiang Xia, Bao Hua Cao, Zhe Lin Li, He Qing Xie, Wei Qi Zong
The density, thermal conductivity, heat capacity, heat transfer coefficient and the initial temperature of materials should be set up before using transient heat transfer simulation by ANSYS.
Li: Journal of Plasticity Engineering.
Nye: Journal of Materials Processing Technology.
Liu: Numerical Simulation of Heat Treatment (Science Press, Beijing1996) [5] Q.X.
Chang: Heat Transfer Theory (Science Press, Beijing2009) [9] Z.Q.
Li: Journal of Plasticity Engineering.
Nye: Journal of Materials Processing Technology.
Liu: Numerical Simulation of Heat Treatment (Science Press, Beijing1996) [5] Q.X.
Chang: Heat Transfer Theory (Science Press, Beijing2009) [9] Z.Q.
Online since: September 2013
Authors: Jun Dai, Dong Cao
Such materials as rock and concrete is much lower in tensile strength than in compressive strength and they are broken easily by tensile stress, it is therefore more important to understand the tensile strength reduction of concrete induced by microwave irradiation.
The author expresses his gratitude to the committee of the national natural science foundation of China for the support.
Journal of Building Structures, 1993, 14(1): 8~16 [2] Xie Dimin, Jin Xianyu.
Journal of Zhejiang University, 1998, 32(5): 597~602 [3] Li Wencheng, Du Xuepeng.
Construction and Building Materials, 25: 3469~3479 [9] Yang Shengquan, Yang Junsheng.
The author expresses his gratitude to the committee of the national natural science foundation of China for the support.
Journal of Building Structures, 1993, 14(1): 8~16 [2] Xie Dimin, Jin Xianyu.
Journal of Zhejiang University, 1998, 32(5): 597~602 [3] Li Wencheng, Du Xuepeng.
Construction and Building Materials, 25: 3469~3479 [9] Yang Shengquan, Yang Junsheng.
Online since: July 2011
Authors: Hai Ke Feng, Yi Dan
The Preparation of PVAc with Lower PDI through RATRP in Miniemulsion Polymerization
Haike Feng1,2,a, Yi Dan2,b
1College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 310036, China
2State Key Laboratory of Polymer Materials Engineering of China,Polymer Research Institute of Sichuan University, Chengdu 610065, China
a fhkfhk@163.com, bdanyichenweiwei@163.com
Keywords: reverse atom transfer radical polymerization, molecular weight distribution, polyvinyl acetate, miniemulsion polymerization
Abstract.In this paper, reverse atom transfer radical polymerization (RATRP) was used to prepare polyvinyl acetate (PVAc) with lower polydispersity index (PDI).
Experimental Materials Vinyl acetate (analytic reagent grade, A.R) used after distilled was obtained from Chengdu Kelong Chemical Reagent Factory (Chengdu City, China).
Acknowledgement The authors are grateful to the National Natural Science Foundation of China (NO.20374036) for support of this research.
:Carter:Journal of the American Chemical Science Vol.125 (2003), p.3831-3838
Dan:Journal of Applied Polymer Science, Vol.99 (2006), p.1093-1099.
Experimental Materials Vinyl acetate (analytic reagent grade, A.R) used after distilled was obtained from Chengdu Kelong Chemical Reagent Factory (Chengdu City, China).
Acknowledgement The authors are grateful to the National Natural Science Foundation of China (NO.20374036) for support of this research.
:Carter:Journal of the American Chemical Science Vol.125 (2003), p.3831-3838
Dan:Journal of Applied Polymer Science, Vol.99 (2006), p.1093-1099.
Online since: January 2012
Authors: Feng Wang, Zhong Hua Du, Jie Dong Gao, Yu Cai Dong
The liner material was copper; STEINBERG and GRUNEIDEN were adopted.
The parameters of each material are to be found in Table 1.
[3] Gou Ruijun, Zhao Guozhi, Du Zhonghua, The power research of LEFP. explosive materials 2005;34 (5) : 25 -28
[4] Du Zhonghua, Duan Weiyi, The simulation research on formation and penetration in different ways of initiation for LEFP. journal of Nanjing university of science and technology 2009; 33(6) : 756-759
International Journal of Impact Engineering. 2010;37;414-424
The parameters of each material are to be found in Table 1.
[3] Gou Ruijun, Zhao Guozhi, Du Zhonghua, The power research of LEFP. explosive materials 2005;34 (5) : 25 -28
[4] Du Zhonghua, Duan Weiyi, The simulation research on formation and penetration in different ways of initiation for LEFP. journal of Nanjing university of science and technology 2009; 33(6) : 756-759
International Journal of Impact Engineering. 2010;37;414-424
Online since: May 2011
Authors: Yong Yao, Dai Guo Chen, Yong Jun Deng
The material parameters Concrete and carbon fiber The concrete strength of RC beam model is C25. the T-Ⅰ- 300 CFRP cloth adopted as Reinforcing material and the matched paste resin are from HangShuo composite material Co., LTD.
All the parameters of the materials are following:(Table1) Table 1 Parameter Index of Materials material name Poisson's ratio elasticity modulus(MPa) tensile strength(MPa) Prism compressive strength(MPa) concrete 0.2 3.0×104 2.19 18.54 CFRP 0.17 2.46×105 3500 --- main reinforcement 0.3 2.10×105 369.6 --- epoxy resin --- 3.20×103 48.5 --- Constitutive relation.
The strain-stress curve of carbon CFRP materials close to ideal elastic, showed in figure 4, when the stress is larger than tensile strength of carbon fiber, think the fiber fracture.
GUANGDONG SCIENCE & TECHNOLOGY.2005
Journal of Water Resources and Architectural Engineering.2006,3.(1)
All the parameters of the materials are following:(Table1) Table 1 Parameter Index of Materials material name Poisson's ratio elasticity modulus(MPa) tensile strength(MPa) Prism compressive strength(MPa) concrete 0.2 3.0×104 2.19 18.54 CFRP 0.17 2.46×105 3500 --- main reinforcement 0.3 2.10×105 369.6 --- epoxy resin --- 3.20×103 48.5 --- Constitutive relation.
The strain-stress curve of carbon CFRP materials close to ideal elastic, showed in figure 4, when the stress is larger than tensile strength of carbon fiber, think the fiber fracture.
GUANGDONG SCIENCE & TECHNOLOGY.2005
Journal of Water Resources and Architectural Engineering.2006,3.(1)
Online since: December 2014
Authors: Tao Zhu, Shuang Jie Du, Xian Xian He
Glover [12] used carbon deposition techniques to modify Aluminophosphate molecular sieve or Mesoporous molecular sieves adsorption materials ,in order to improve the selectivity and efficiency of O2/CH4/N2 on molecular sieves.
Journal of Fuxin Mining Institute 10(3):24~28
Tezel, “Adsorption separation of N2, O2, CO2 and CH4 gases by b-zeolite”,Microporous and Mesoporous Materials, 2007, 98, 94–101
LeVan, “Carbon-silica composite adsorbent: Characterization and adsorption of light gases”,Microporous and Mesoporous Materials, 2008, 111, 1–11
Chemical Engineering Science, 2004 59: 1989-1997
Journal of Fuxin Mining Institute 10(3):24~28
Tezel, “Adsorption separation of N2, O2, CO2 and CH4 gases by b-zeolite”,Microporous and Mesoporous Materials, 2007, 98, 94–101
LeVan, “Carbon-silica composite adsorbent: Characterization and adsorption of light gases”,Microporous and Mesoporous Materials, 2008, 111, 1–11
Chemical Engineering Science, 2004 59: 1989-1997
Online since: March 2013
Authors: Hua Yin, Yao Ting Zhu
., Ltd has developed a kind of modified construction materials (RK 300 for short and shown in Figure 1) which is produced by polyolefin/ethylene copolymer, compatilizer, dispersant and special modified materials with modern chemical synthesis technology [3].
The melted materials can occur chemical reaction with small molecular of asphalt binder to produce large molecular.
Considering RK300 is instead of conventional modified materials, AC-13(C) mix is chosen as they are the most widely used mixtures in the construction of upper layer for flexible pavements in China.
Lu: Materials and Structures, Vol. 28 (1995) No.3, p.139
Dong: Journal of Wuhan University of Technology, Vol.30 (2006) No.3, p.477
The melted materials can occur chemical reaction with small molecular of asphalt binder to produce large molecular.
Considering RK300 is instead of conventional modified materials, AC-13(C) mix is chosen as they are the most widely used mixtures in the construction of upper layer for flexible pavements in China.
Lu: Materials and Structures, Vol. 28 (1995) No.3, p.139
Dong: Journal of Wuhan University of Technology, Vol.30 (2006) No.3, p.477
Online since: December 2010
Authors: Zhi Cong Zhang, Kai Shun Hu, Hui Yu Huang, Shuai Li
Each operation requires specific raw materials or components, and a group of machines are capable to perform it.
The optimality objective is to minimize the overall cost subject to various constraints, e.g. production capacity constraint, and materials and components supply constraint.
Materials and components supply constraint (8) guarantees that materials and components consumption does not violate their supply capacity.
Aghezzaf: International Journal of Production Economics Vol. 112 (2008), p. 121-137
Cao: Lecture Notes in Computer Science Vol. 3613 (2006), p. 285-294.
The optimality objective is to minimize the overall cost subject to various constraints, e.g. production capacity constraint, and materials and components supply constraint.
Materials and components supply constraint (8) guarantees that materials and components consumption does not violate their supply capacity.
Aghezzaf: International Journal of Production Economics Vol. 112 (2008), p. 121-137
Cao: Lecture Notes in Computer Science Vol. 3613 (2006), p. 285-294.
Online since: July 2005
Authors: Jian Lu, Guillaume Montay, Jian Luo
By creating an automatic ABAQUS analysis system and data base, the numerical calibration
coefficients and residual stress directly with many parameters, kinds of materials and structures can
be calculated very quickly and easily using this new inverse FEM method in this paper.
Materials Sciences Forum Vol. 347-349 (2000), p1-9
JSME International journal Vol. 43, (2000), p 367-373
Yang, Residual-stress Measurement in Orthotropic Materials Using the Hole-drilling Method.
Journal of engineering Materials and technology.
Materials Sciences Forum Vol. 347-349 (2000), p1-9
JSME International journal Vol. 43, (2000), p 367-373
Yang, Residual-stress Measurement in Orthotropic Materials Using the Hole-drilling Method.
Journal of engineering Materials and technology.