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Online since: August 2013
Authors: Jun Li Guo, Wei Feng Su, Zhou Shi, Shuang Yang Zhang
XiangdongChen et al[6] based ALE method, establishing a 3-D numerical model of high-speed train sound barrier pulse power, using parallel computing technology research sound barrier pulse power role.Currently, the parameters of high-speed railway pulsating wind load, static and dynamic design theory methods are to be further improved.Based on computational fluid dynamics theory, building a 3-D numerical model of high-speed train and sound barrier.analoging the sound barrier when the train prevailingwithstand fluctuating wind pressure distribution characteristics, provide reference materials for the high-speed railway sound barrier static and dynamic design.
The upper part of sound barrier structure using transparent , and even the full clear is more common, in foreign, the sound barriers often use a column plug plate , the column to use more section steel, flapper metal aluminum package board, concreteslabs, stiffening fiberboard as well as some organic material transparent sound insulation board.
Journal of Beijing University of Aeronautics and Astronautics. 35(4): 505-508,( 2009),In Chinese
Journal of the China Railway Society. 33(12):21-26, (2011), In Chinese
[8]China Academy of Railway Sciences.
The upper part of sound barrier structure using transparent , and even the full clear is more common, in foreign, the sound barriers often use a column plug plate , the column to use more section steel, flapper metal aluminum package board, concreteslabs, stiffening fiberboard as well as some organic material transparent sound insulation board.
Journal of Beijing University of Aeronautics and Astronautics. 35(4): 505-508,( 2009),In Chinese
Journal of the China Railway Society. 33(12):21-26, (2011), In Chinese
[8]China Academy of Railway Sciences.
Online since: November 2015
Authors: Gunther Reinhart, Benjamin Greiff, Johannes Glasschröder, Max Lutter-Günther, Christian Gebbe
In order to quantify the resource consumption, in this study the demand of raw materials and operating materials of the selective laser melting process was quantified according to the methodology developed within the initiative Cooperative Effort on Process Emissions in Manufacturing (CO2PE!).
First, fewer material waste is created in additive processes compared to chipping processes.
In addition to technical gases, the recyclable share of the material powder was measured by using a scale.
Midgley, Climate change 2013: The physical science basis, Edited by Thomas Stocker, Cambridge University Press, Cambridge, UK, and New York, 2014
The International Journal of Life Cycle Assessment 17, no. 2 (2012) 242251
First, fewer material waste is created in additive processes compared to chipping processes.
In addition to technical gases, the recyclable share of the material powder was measured by using a scale.
Midgley, Climate change 2013: The physical science basis, Edited by Thomas Stocker, Cambridge University Press, Cambridge, UK, and New York, 2014
The International Journal of Life Cycle Assessment 17, no. 2 (2012) 242251
Online since: February 2011
Authors: Chang Hua Du, Yi Luo, Hui Bin Xu, Chun Tian Li
The Study of the Model for the Formation Process of GMAW
Chuntian Li1, a, Changhua Du1, b,Yi Luo1, c, Huibin Xu1,d
1College of Material Science and Engineering, Chongqing University of Technology,
No.4 Xingsheng Road, Yangjiaping, Chongqing, P.R.
Acknowledgements The paper is based on the high-tech project fund (No.2008EG115065) from The Ministry of Science and Technology of the People’s Republic of China, the author is very much appreciated.
This paper also attributed to National Nature Science Foundation of China (No.50975303), Thanks a lot again.
Science and Technology of welding and Joining, 200l, 6 (2): 95-102
International Journal for the Joining of Materials, 1996, 8(3): 112-120
Acknowledgements The paper is based on the high-tech project fund (No.2008EG115065) from The Ministry of Science and Technology of the People’s Republic of China, the author is very much appreciated.
This paper also attributed to National Nature Science Foundation of China (No.50975303), Thanks a lot again.
Science and Technology of welding and Joining, 200l, 6 (2): 95-102
International Journal for the Joining of Materials, 1996, 8(3): 112-120
Online since: December 2010
Authors: Da Chang Zhu, Yu Hang Chen, Li Meng
Structure Analysis of UPC Type 3-DoF Rotational Spatial Compliant Parallel Manipulator
Zhu Dachang1,2, a, Chen Yuhang2 and Meng Li2
1Shool of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China
2School of Mechanical & Electrical Control Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, 341000, China
a zdc98998@163.com
Keywords: Compliant parallel manipulator, Screw theory, Geometric constraint condition.
Jensen [10] presents a pseudo-rigid-body model for initially curved pinned-pinned segments that undergo large, nonlinear deflections, and this model has been validated by fabricating several such segments from a variety of different materials.
Acknowledgement The research has been supported by the National Natural Science Foundation of China (50965007), Project of Jiangxi Province Educational Science and Technology Program (GJJ10475), and China Postdoctoral Science Foundation (20100470926) References [1] T.Fukuda, F.Arat, and L.Dong: Assembly of nanodevices with carbon nanotubes through nanorobotic manipulators, Proc.
[9] O.Sigmund: Design of multi-physics actuators using topology optimization-Part I: one material structures, Computer Methods in Applied Mechanics and Engineers, Vol.190(2001), p. 6577-6604
[10] B.T.Edwards, B.D.Jensen, and L.L.Howell: A pseudo-rigid-body model for initially-curved pinned-pinned segments used in compliant mechanisms, Journal of Mechanical Design, Transaction on ASME, Vol.123, no.3(2001), p. 464-468.
Jensen [10] presents a pseudo-rigid-body model for initially curved pinned-pinned segments that undergo large, nonlinear deflections, and this model has been validated by fabricating several such segments from a variety of different materials.
Acknowledgement The research has been supported by the National Natural Science Foundation of China (50965007), Project of Jiangxi Province Educational Science and Technology Program (GJJ10475), and China Postdoctoral Science Foundation (20100470926) References [1] T.Fukuda, F.Arat, and L.Dong: Assembly of nanodevices with carbon nanotubes through nanorobotic manipulators, Proc.
[9] O.Sigmund: Design of multi-physics actuators using topology optimization-Part I: one material structures, Computer Methods in Applied Mechanics and Engineers, Vol.190(2001), p. 6577-6604
[10] B.T.Edwards, B.D.Jensen, and L.L.Howell: A pseudo-rigid-body model for initially-curved pinned-pinned segments used in compliant mechanisms, Journal of Mechanical Design, Transaction on ASME, Vol.123, no.3(2001), p. 464-468.
Online since: August 2014
Authors: Jean Luc Grosseau-Poussard, Benoit Panicaud, Gilles Bonnet, Patrick Girault, Mathieu Guerain, Felaniaina Rakotovao, Zhao Jun Tao
In turn, the material durability depends on the ceramic film integrity.
Panicaud, Journal of Applied Physics 102 (2007) 1
Dinhut, Corrosion Science, Volume 51, Issue 9, September 2009, Pages 2246-2248 [9] M.
Dinhut, Applied Surface Science 256, 2719 (2010) [10] M.
Dinhut, Computationnal Materials Science 46 (2009) 42-48 [12] M.
Panicaud, Journal of Applied Physics 102 (2007) 1
Dinhut, Corrosion Science, Volume 51, Issue 9, September 2009, Pages 2246-2248 [9] M.
Dinhut, Applied Surface Science 256, 2719 (2010) [10] M.
Dinhut, Computationnal Materials Science 46 (2009) 42-48 [12] M.
Online since: November 2011
Authors: Li Xin Yin, Guo Wen Li, Jing Yan
In recent years some specialist proposed “the big project view” which is multi-factor meaning build on the science and technology including the society, economy, culture, morals and environment and so on.
Emphasis on humanistic spirit: Engineering education must be based on science and technology, including social, economic, cultural, moral and environmental improvement on many factors.
It is essential way to train science and technology of engineering talents through universities and industry cooperation.
Advanced Materials Research (ISSN: 1022-6680),Volume 211-212, P.6-10
Journal of Changshu Institute of Technology.2009.6 P97-99 [3] Huanqi Qian.
Emphasis on humanistic spirit: Engineering education must be based on science and technology, including social, economic, cultural, moral and environmental improvement on many factors.
It is essential way to train science and technology of engineering talents through universities and industry cooperation.
Advanced Materials Research (ISSN: 1022-6680),Volume 211-212, P.6-10
Journal of Changshu Institute of Technology.2009.6 P97-99 [3] Huanqi Qian.
Online since: July 2012
Authors: Xin Zhao, Mi Zhao Song, Hui Jun Zhang, Jing Bin Zhang
China.
2 College of Life Science and Engineering of Qiqihar University,Qiqihar 161006,Heilongjiang, P.
At present, monomer silane or siloxane is usually used as raw material for the synthesis and modification of polysiloxane.6–8 Meanwhile, the structure of long alkyl group, which contains eighteen or more than eighteen carbons, is similar to that of body fat.
In practical application, co-polymer has excellent reactivity and adhesiveness, which would have good compatibility with other finishing materials (polyurethane, polyacrylate, etc.) used in leather-making process and could endow leather with good softness, pleasant handle, and preferable elasticity.10 The structure of co-polymer was determined by FTIR and 1H-NMR spectra.
Experimental Materials and instrument Vinyl-ended siloxane was of industrial grade and supplied by De bang Chemical Company, Hubei, China; SA (C.P., > 99%) was purchased from Beijing Dong fang Chemical Company, Beijing, China; methylmethacrylate, crylic acid, AIBN, and other conventional chemicals, which were purchased from Bo di Chemical Company, Tianjin, China, were of reagent grade and used without further purification.
Journal of Polymer Research, 2005,12(6):433-438
At present, monomer silane or siloxane is usually used as raw material for the synthesis and modification of polysiloxane.6–8 Meanwhile, the structure of long alkyl group, which contains eighteen or more than eighteen carbons, is similar to that of body fat.
In practical application, co-polymer has excellent reactivity and adhesiveness, which would have good compatibility with other finishing materials (polyurethane, polyacrylate, etc.) used in leather-making process and could endow leather with good softness, pleasant handle, and preferable elasticity.10 The structure of co-polymer was determined by FTIR and 1H-NMR spectra.
Experimental Materials and instrument Vinyl-ended siloxane was of industrial grade and supplied by De bang Chemical Company, Hubei, China; SA (C.P., > 99%) was purchased from Beijing Dong fang Chemical Company, Beijing, China; methylmethacrylate, crylic acid, AIBN, and other conventional chemicals, which were purchased from Bo di Chemical Company, Tianjin, China, were of reagent grade and used without further purification.
Journal of Polymer Research, 2005,12(6):433-438
Online since: September 2012
Authors: Jia Heng Lei, Xiao Di Du, Bo Huang, Ming Liu
Influence of Molecular Structure on Properties of Polycarboxylate Superplasticizers
Ming Liu 1, a, JiaHeng Lei2,b, XiaoDi Du2,c, and Bo Huang3,d
1 School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
2Department of Chemistry, Wuhan University of Technology, Wuhan 430070, China
3China State Construction Engrg.
In PC-2 and PC-3 system, monomer residue determination result also indicated that the corresponding system of raw material polymerization reaction 98% or more involved in the polymerization reaction.
Materials and Structures (1998) [4] Ridi F, Dei L, Fratini E, et al.
The Journal of Physical Chemistry B (2003) [5] Yamada K, Ogawa S, Hanehara S.
In PC-2 and PC-3 system, monomer residue determination result also indicated that the corresponding system of raw material polymerization reaction 98% or more involved in the polymerization reaction.
Materials and Structures (1998) [4] Ridi F, Dei L, Fratini E, et al.
The Journal of Physical Chemistry B (2003) [5] Yamada K, Ogawa S, Hanehara S.
Online since: January 2011
Authors: Ai Kah Soh, M.M. Tang
However, gecko’s foot hair is a biological material which displays viscoelasticity.
Thus, it is more realistic to simulate gecko’s foot hair as viscoelastic material.
Gao: Journal of the Mechanics and Physics of Solids Vol. 54, No. 6 (2006), p. 1120 [4] Yao: Mechanics of Robust and Releasable Adhesion in Biology, PhD thesis (Max-Planck-Institute, 2006)
Gao et al.: Mechanics of Materials Vol. 37, No. 2 (2006), p. 275 [6] G.
Spolenak et al., in: Proceedings of the Royal Society of London Series a-Mathematical Physical and Engineering Sciences Vol. 461, No. 2054 (2005), p. 305 [8] K.
Thus, it is more realistic to simulate gecko’s foot hair as viscoelastic material.
Gao: Journal of the Mechanics and Physics of Solids Vol. 54, No. 6 (2006), p. 1120 [4] Yao: Mechanics of Robust and Releasable Adhesion in Biology, PhD thesis (Max-Planck-Institute, 2006)
Gao et al.: Mechanics of Materials Vol. 37, No. 2 (2006), p. 275 [6] G.
Spolenak et al., in: Proceedings of the Royal Society of London Series a-Mathematical Physical and Engineering Sciences Vol. 461, No. 2054 (2005), p. 305 [8] K.
Online since: October 2013
Authors: Ya Feng Xu, Shou Yan Bai, Ri Liang Li
In the finite element analysis, we suppose the steel is isotropic materials.
In the material nonlinear analysis, we use the Von Mises - servo reinforcement criterion, in which the elastic-plastic and stress-strain curve of steel to be supposed the perfect elasto-plastic and described as double line model, we select the constitutive relation model in reference in this paper [5].
The characteristic of the model is parabolic in the rising period which reflects the concrete not ideal elastic-plastic material, and diagonal in the decline period.
Liu, The study on the mechanical properties of cross steel reinforced concrete column, Journal of Shenyang Architectural University, 1 (2010) 7-10
Jia, Structure Technology of Seel Reinforced Concrete Filled Steel Tube, Science Press, Beijing, (2009) 49-50
In the material nonlinear analysis, we use the Von Mises - servo reinforcement criterion, in which the elastic-plastic and stress-strain curve of steel to be supposed the perfect elasto-plastic and described as double line model, we select the constitutive relation model in reference in this paper [5].
The characteristic of the model is parabolic in the rising period which reflects the concrete not ideal elastic-plastic material, and diagonal in the decline period.
Liu, The study on the mechanical properties of cross steel reinforced concrete column, Journal of Shenyang Architectural University, 1 (2010) 7-10
Jia, Structure Technology of Seel Reinforced Concrete Filled Steel Tube, Science Press, Beijing, (2009) 49-50