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Online since: July 2013
Authors: Huan Li, Ying Gao, Xiao Yan Gu
Experimental
The experimental material is the Mg alloy AZ31 which is alloyed by the element Al and the elements Zinc (Zn) .
Materials Science and Engineering: A Vol.505,(2009),p6-12
Journal of Physics D: Applied Physics (2008),41(13),p1-8
Plasma Science and Technology (2011),13(2),p3887-3897
Materials Science and Engineering: A Vol.505,(2009),p6-12
Journal of Physics D: Applied Physics (2008),41(13),p1-8
Plasma Science and Technology (2011),13(2),p3887-3897
Online since: January 2013
Authors: Yun Peng Chu, Yong Jun Deng, Yong Yao, Chao Wu Pei, Ya Long Yang
Numerical analysis on seismic performance of beam-column joints strengthened by top and seat angles in the added-storey steel frame
Yalong Yang 1,a, Yong Yao 1,b, Yunpeng Chu 1,c, Chaowu Pei 1,d and Yongjun Deng 1,e
1School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, Sichuan 621010, China
afenghuaade@163.com (corresponding author), byy001221@163.com, cchuyunpeng@swust.edu.cn,d809304904@qq.com,e516341369@qq.com
Keywords: steel joints of added layer; seismic performance; finite element analysis; geometry parameters of the angle
Abstract: Based on the ANSYS platform, set up five finite element models of beam-column joints strengthened by top and seat angles, analysis its seismic performance and discuss how the width and thickness of the angle affect it.
Select the material parameters in table 2, and as an ideal elastic-plastic material of steel, does not consider the impact of its strengthening segment.
Material parameters Name Modulus of elasticity [×105N/mm2] Poisson's ratio Yield strength [N/mm2] Beams and columns(Q345B) 2.06 0.3 345 Electrode(E50) 2.06 0.3 410 High strength and friction bolts (Class 10.9) 2.06 0.3 940 Main results Hysteresis curve.
Acknowledgements Supported by technology support program of Sichuan province (No:2011GZ0043) and by young scientists foundation of southwest university of science and technology (No:11ZX3129).
Journal of Civil Engineering,2011,44(5):57-68
Select the material parameters in table 2, and as an ideal elastic-plastic material of steel, does not consider the impact of its strengthening segment.
Material parameters Name Modulus of elasticity [×105N/mm2] Poisson's ratio Yield strength [N/mm2] Beams and columns(Q345B) 2.06 0.3 345 Electrode(E50) 2.06 0.3 410 High strength and friction bolts (Class 10.9) 2.06 0.3 940 Main results Hysteresis curve.
Acknowledgements Supported by technology support program of Sichuan province (No:2011GZ0043) and by young scientists foundation of southwest university of science and technology (No:11ZX3129).
Journal of Civil Engineering,2011,44(5):57-68
Online since: June 2011
Authors: Bo Guo, Shi Bin Liu, Jin Tao Liang, Wen Guang Feng, Yu Xin Liu, Ju Ping Li
The resonance of microcantilever was piezoresistively detected by the wheatstone bridge on the root of the beam, for it responded to the thermally-excited from bi-material effect caused by different thermal expansion coefficient of Al and Si.
2.1 The output signal amplitude.
Taking into account the change of resistance, a reasonable simplification is as follows: (3) The bendingof a cantilever can be estimated from[4]: (4) Whereis the total cantilever thickness, is the cantilever length, and are the thermal expansion coefficients, is the thickness ratio of the two cantilever materials, and is the ratio of Young's modulus .
Acknowledgements: The Project was supported by the National Natural Science Foundation of China under Grant No.60874101 and Foundation for Basic Research of Northwestern Polytechnical University under Grant No.
Journal of Tianjin University Science and Technology, v 41, n 1, p 7-10, January 2008 [6] Lijuan Wang and Zhendong Yao.
Taking into account the change of resistance, a reasonable simplification is as follows: (3) The bendingof a cantilever can be estimated from[4]: (4) Whereis the total cantilever thickness, is the cantilever length, and are the thermal expansion coefficients, is the thickness ratio of the two cantilever materials, and is the ratio of Young's modulus .
Acknowledgements: The Project was supported by the National Natural Science Foundation of China under Grant No.60874101 and Foundation for Basic Research of Northwestern Polytechnical University under Grant No.
Journal of Tianjin University Science and Technology, v 41, n 1, p 7-10, January 2008 [6] Lijuan Wang and Zhendong Yao.
Online since: September 2013
Authors: Qiu Lei Du, Li Ai Pan
In some extent, the performance of the national science and technology competes.
In the Trough electromagnetic vibration feeder, the movement of material is horizontal.
Through slide, Materials fall into the trough electromagnetic vibration feeder.
Journal of Shiyan Technical Institute.
[6] Fuyuan LEI: Design Principle of Automatic Packaging Machine, Tianjin Science and Technology Press, (1986).
In the Trough electromagnetic vibration feeder, the movement of material is horizontal.
Through slide, Materials fall into the trough electromagnetic vibration feeder.
Journal of Shiyan Technical Institute.
[6] Fuyuan LEI: Design Principle of Automatic Packaging Machine, Tianjin Science and Technology Press, (1986).
Online since: February 2013
Authors: Ying Qing Guo, Yan Xia Sun, Jun Chen, Xiao Jun Jin, Yong Chen
China
2School of Instrument Science and Opto-electronics Engineering, HeFei University of Technology, P.
Color indices were employed in many studies to distinguish plant material from the background [1-4].
Materials and Methods A set of color images of Longjing tea, which is amongst the finest and most representative of green teas in China, were acquired after germination with a DaHeng camera(HV1300FC, DaHeng Image, Inc., Beijing, China) in Longjing tea plantation (Hangzhou, China) under natural sunlight.
Acknowledgments This work was supported by the Science and Technology Foundation for Selected Overseas Chinese Scholars, Ministry of Personnel of China.
Journal of Agricultural Mechanization Research.
Color indices were employed in many studies to distinguish plant material from the background [1-4].
Materials and Methods A set of color images of Longjing tea, which is amongst the finest and most representative of green teas in China, were acquired after germination with a DaHeng camera(HV1300FC, DaHeng Image, Inc., Beijing, China) in Longjing tea plantation (Hangzhou, China) under natural sunlight.
Acknowledgments This work was supported by the Science and Technology Foundation for Selected Overseas Chinese Scholars, Ministry of Personnel of China.
Journal of Agricultural Mechanization Research.
Online since: August 2008
Authors: Win Bunjongpru, S. Porntheeraphat, N. Somwang, P. Khomdet, C. Hruanun, J. Nukeaw, Amporn Poyai
Introduction
Aluminum Oxynitride (AlON) is a transparent polycrystalline ceramic material of high strength and
hardness.
Unfortunately, AlON is a refractory material; it requires high substrate temperatures (1300 K), which is complicated to obtain [6].
The sputtering target was 99.999% aluminum (Al) material.
[6] Yong Ju Lee: Science Direct (2004), p. 568
Kietpaisalsophon, et. al.: International Journal of Modern Physics B Vol. 16 (2002), p. 4418.
Unfortunately, AlON is a refractory material; it requires high substrate temperatures (1300 K), which is complicated to obtain [6].
The sputtering target was 99.999% aluminum (Al) material.
[6] Yong Ju Lee: Science Direct (2004), p. 568
Kietpaisalsophon, et. al.: International Journal of Modern Physics B Vol. 16 (2002), p. 4418.
Online since: December 2013
Authors: Gui Shu Liang, Xin Liu, Feng Gao
Fractional order model of Iron core
Due to lightning overvoltage, operating overvoltage amplitude could be as high as 3 to 4 times of the rated voltage, electromagnetic PT iron core could have a lot of excitation flux, so the silicon steel sheet as a core material could achieve excitation saturation easily, and its changes of magnetic induction intensity always lags the change of its magnetic field strength, then produce hysteresis phenomenon that shows the shape of a hysteresis loop back through magnetic flux density B and magnetic field intensity H and shows multivalued nonlinear corresponding relationship[6].
Fractional order calculus can be effectively applied to simulate the dynamic characteristics of different types of materials[7].
Acknowledgements This research was supported in part by National Natural Science Foundation of China under Grant No.51177048 and No.51207054, the Natural Science Foundation of Hebei Province of China E2012502009, the Fundamental Research Funds for the Hebei Province Universities under Grant No.Z2011220 and the Fundamental Research Funds for the Central Universities under Grant No.11MG36 and No.13MS75, respectively.
Journal of xi'an jiaotong university. 2006(10).
Fractional order calculus can be effectively applied to simulate the dynamic characteristics of different types of materials[7].
Acknowledgements This research was supported in part by National Natural Science Foundation of China under Grant No.51177048 and No.51207054, the Natural Science Foundation of Hebei Province of China E2012502009, the Fundamental Research Funds for the Hebei Province Universities under Grant No.Z2011220 and the Fundamental Research Funds for the Central Universities under Grant No.11MG36 and No.13MS75, respectively.
Journal of xi'an jiaotong university. 2006(10).
Online since: October 2013
Authors: Yun Liu, Xiang Yu Li, Bing Xia
This paper analyzes the truss structure simulation and optimization of materials used parameters are as follows: elastic modulus E=2.06×105MPa; Poisson's ratio 0.3; material density 7.8×103kN/m3; allowable stress 215MPa.
Changchun Institute of Technology (Natural Science), 3 (2002) 6-9
[6] Blue sky, space application and development of steel structure, Journal of Building Structures, 22 (2001) 2-8
Chen, Spatial steel truss structure development and application of the friends of science, J.
Changchun Institute of Technology (Natural Science), 3 (2002) 6-9
[6] Blue sky, space application and development of steel structure, Journal of Building Structures, 22 (2001) 2-8
Chen, Spatial steel truss structure development and application of the friends of science, J.
Online since: August 2013
Authors: Chun Xia Yan, Zhi Guo Li, Bo Su
The test results show that: When the steel roughness is 60μm, the anti-corrosion material has the highest adhesive strength with the steel plate.
As the bridge experiences the season changes throughout the year and the temperature may change in the range of tens °C, or even one hundred °C, excellent temperature resistance is required for the anticorrosive coating materials.
Acknowledgements This work was financially supported by the Tianjin Natural Science Foundation (08JCZDJC23000).
In Chinese [3] Wei Li, Zhongchu Tian, Friend of Science Amateurs, 26(2008), pp. 46-47.
In Chinese [4] Wei Huang, Zhendong Qian, Lei Zhang, China Civil Engineering Journal. vol. 39(2006), pp. 87-90.
As the bridge experiences the season changes throughout the year and the temperature may change in the range of tens °C, or even one hundred °C, excellent temperature resistance is required for the anticorrosive coating materials.
Acknowledgements This work was financially supported by the Tianjin Natural Science Foundation (08JCZDJC23000).
In Chinese [3] Wei Li, Zhongchu Tian, Friend of Science Amateurs, 26(2008), pp. 46-47.
In Chinese [4] Wei Huang, Zhendong Qian, Lei Zhang, China Civil Engineering Journal. vol. 39(2006), pp. 87-90.
Online since: October 2014
Authors: Yong Feng Li, Xuan Dong Dong, Jia Yu Wang, Cai Yu Sun, Bi Da Qin, Dong Pu Guo
Test apparatus and methods
The test apparatus and materials
Running three sets of experiment device at the same time, the conditions are the same besides the different anode substrate.
Effective area is 9.7 cm * 9.7 cm, 94.09 cm2. proton membrane with rubber ring on both sides to prevent leakage and to ensure that the anode anaerobic environment.[2] Cathode and anode materials are made of conductive carbon fiber carbon brush carbon fiber average diameter 6 m, length 10 cm), using the titanium wire connected to the external circuit, an external fixed value is 100 Ω resistance. inserted into the Ag/AgCl reference electrode as the reference electrode In the anode .
Acknowledgements This work was financially supported by the Natural Science Foundation of Heilongjiang Province(E201354), the Fundamental Research Funda for the Central Universities(2572014AB09)and the Projects in the National "Twelfth Five-Year" Plan for Science & Technology Support (2011BAD08B01-03).
Environmental Science 2009,30(7): 2148—2152 [5]HuangXia,Fan Zhiming,LangPeng,Cao Xiaoxin.
The anode potential effect on production performance [J ]Chemical Journal of Chinese Universities,2009,30(5): 983—987
Effective area is 9.7 cm * 9.7 cm, 94.09 cm2. proton membrane with rubber ring on both sides to prevent leakage and to ensure that the anode anaerobic environment.[2] Cathode and anode materials are made of conductive carbon fiber carbon brush carbon fiber average diameter 6 m, length 10 cm), using the titanium wire connected to the external circuit, an external fixed value is 100 Ω resistance. inserted into the Ag/AgCl reference electrode as the reference electrode In the anode .
Acknowledgements This work was financially supported by the Natural Science Foundation of Heilongjiang Province(E201354), the Fundamental Research Funda for the Central Universities(2572014AB09)and the Projects in the National "Twelfth Five-Year" Plan for Science & Technology Support (2011BAD08B01-03).
Environmental Science 2009,30(7): 2148—2152 [5]HuangXia,Fan Zhiming,LangPeng,Cao Xiaoxin.
The anode potential effect on production performance [J ]Chemical Journal of Chinese Universities,2009,30(5): 983—987