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Online since: July 2011
Authors: Bin Yang, Qin Shou Huang, Ding Ming Yuan, Jin Hua Huang
Table 1 Structure size and material parameters of pavement
Structural layer
Elastic modulus E/MPa
Poisson ratioμ
Coefficient of thermal conductivity
/w/m℃
Temperature contraction coefficient /1/℃
Asphalt overlay
1200(800-2400)
0.25
1.2
2.1×10-5
Stress absorption interlayer
800(400-1600)
0.25
1.2
2.1×10-5
Old cement concrete slab
30000
0.15
1.5
1.0×10-5
base
100
0.3
1.0
0.5×10-5
The Determination of the Most Unfavorable Load Position
Fig.3 shows the change law of stress intensity factor K and J-integral of crack tip when it is under different wheel load.
The Key Project of Guangxi Science and Technology Lab Center(LGZX201107).
[M].Beijing: Science Press, 2009, 22-58
Analytical prediction of short to long fatigue crack growth rate using small-and large-scale yielding fracture mechanics.International Journal of Fatigue, Volume 25, Issues 9-11, September-November 2003, Pages 923-933.
The Key Project of Guangxi Science and Technology Lab Center(LGZX201107).
[M].Beijing: Science Press, 2009, 22-58
Analytical prediction of short to long fatigue crack growth rate using small-and large-scale yielding fracture mechanics.International Journal of Fatigue, Volume 25, Issues 9-11, September-November 2003, Pages 923-933.
Online since: November 2012
Authors: Jiang Hao Wu, Chao Zhou, Yan Lai Zhang
A Novel Design in Micro-Air-Vehicle: Flapping Rotary Wings
WU Jianghaoa,ZHOU Chaob and ZHANG Yanlaic
School of Transportation Science and Engineering, Beihang University, Beijing, PR China
a buaawjh@buaa.edu.cn, b zcqh821@163.com, c zhangyanlai@buaa.edu.cn
Keywords: MAV; flapping rotary wings; lift force; aircraft design
Abstract.
To lessen the model’s weight, the shaft and sleeve all use carbon fiber material.
Acknowledgements This research was primarily supported by the National Natural Science Foundation of China (10902009 and 11172029).
International Journal of Micro Air Vehicles, Volume 1, Number 4, pp. 255 - 262
To lessen the model’s weight, the shaft and sleeve all use carbon fiber material.
Acknowledgements This research was primarily supported by the National Natural Science Foundation of China (10902009 and 11172029).
International Journal of Micro Air Vehicles, Volume 1, Number 4, pp. 255 - 262
Online since: September 2011
Authors: Li Jun Wang, Jin Bo Ma, Ting Tang
The material of structures is steel, which is modeled by DAMTEP and YLDVM.
The stiffening should be thicker than outer bottom and thinner than inner bottom Acknowledgements This work was financially supported by the China Postdoctoral Science Foundation (20100471794).
Ship Science and Technology. 29(1) (2007) 91-94
Journal of Harbin Engineering University. 29(4) 2008. 326-331
The stiffening should be thicker than outer bottom and thinner than inner bottom Acknowledgements This work was financially supported by the China Postdoctoral Science Foundation (20100471794).
Ship Science and Technology. 29(1) (2007) 91-94
Journal of Harbin Engineering University. 29(4) 2008. 326-331
Online since: August 2010
Authors: Tie Cheng Li, Cai Xia Ren, Zong Cai Wang, Chao Qiu, Wen Ping He
As shown in Figure 6, if the valve core is only reciprocating, the spherical polar grinding and the
material removal volume are not uneven when compared with other positions so that the even surface
profile is difficult to achieve.
Journal of Changchun Institute of Optics and Fine Mechanics. 2005,18(2):100 [4].
Mechanical Science and Technology for Aerospace Engineering. 2009(5):652-656 [5].
Heavy Machinery Science and Technology. 2005(2):1-3 [6].
Journal of Changchun Institute of Optics and Fine Mechanics. 2005,18(2):100 [4].
Mechanical Science and Technology for Aerospace Engineering. 2009(5):652-656 [5].
Heavy Machinery Science and Technology. 2005(2):1-3 [6].
Online since: June 2010
Authors: Yu Long Jin, Tian Xing Wu, Zeng Guang Li
The material properties of the
FEM model are represented by σ= 3.45×108 N/m2, yield limit, E=2.06×1011
N/m2, Young's Modulus,
µ = 0.3, Poisson's ratio and ρ = 7850 kg/m3, the density, respectively
[1]
.
Acknowledgements The paper is subsidized by National High Technology Research and Development Program 863 Plan (Item Number: 2009AA043000) and the Shanghai Science Committee item "Shanghai Jiao Tong University Branch Center,Port Mechanical Engineering Technology Research Center of Shanghai Zhenhua Heavy Industry Co.Ltd" (Item Number: 08DZ2210102).
References [1] Jin Yu-long, Wu Tian-xing, Li Zeng-guang: Journal of Vibration and Shock, 2009, 28(12): 172 - 177
Beijing: Science Press, China, 2001.
Acknowledgements The paper is subsidized by National High Technology Research and Development Program 863 Plan (Item Number: 2009AA043000) and the Shanghai Science Committee item "Shanghai Jiao Tong University Branch Center,Port Mechanical Engineering Technology Research Center of Shanghai Zhenhua Heavy Industry Co.Ltd" (Item Number: 08DZ2210102).
References [1] Jin Yu-long, Wu Tian-xing, Li Zeng-guang: Journal of Vibration and Shock, 2009, 28(12): 172 - 177
Beijing: Science Press, China, 2001.
Online since: July 2011
Authors: Guang Jie Shao, Man Jin, Chao Feng Xia
The Study on Precipitation Characteristics in
6082 Aluminum Alloy with Cu addition
Jin Man a, Chaofeng Xiab ,Guangjie Shaoc
School of Material Science and Engineering, Shanghai University.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50801044).
Trans.A Vol. 32 (2001), p.1063 [17]L.Zhen,W.D.Fei: Journal of Mater.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50801044).
Trans.A Vol. 32 (2001), p.1063 [17]L.Zhen,W.D.Fei: Journal of Mater.
Online since: April 2014
Authors: Xing Zhao Liu, Li Jun He, Chuan Li, Lin Shu
High Quality AlN Thin Films Deposited by Middle-Frequency
Magnetron Sputtering at Room Temperature
Chuan Li1, a*,Lin Shu1, b,Lijun He1, c and Xingzhao Liu1, d
1State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China,
Chengdu 610054, China
auestc_lich@hotmail.com, bs89s89s@126.com, chelijun4@126.com, dxzliu@uestc.edu.cn
Keywords: AlN, Thin film, Middle-frequency Sputtering, Stress, d33
Abstract.
Acknowledgments This work was supported by the National Nature Science Foundation of China under grant no. 61223002.
Martin, Is there a better material for thin film BAW applications than A1N?
Sun, J.X Zhang, Y.B Zhang, S Yuan, P Hing, AlN films deposited under various nitrogen concentrations by RF reactive sputtering, journal of crystal growth, 254(2003) 46-54
Acknowledgments This work was supported by the National Nature Science Foundation of China under grant no. 61223002.
Martin, Is there a better material for thin film BAW applications than A1N?
Sun, J.X Zhang, Y.B Zhang, S Yuan, P Hing, AlN films deposited under various nitrogen concentrations by RF reactive sputtering, journal of crystal growth, 254(2003) 46-54
Online since: September 2013
Authors: Wen Qing Li, Yu Ting Zhang, Ke Xiang Wang, Pu Zhao, Wen Qin Lu
Semantic Inner Product Based Web Service Matchmaking Method
Wenqing Li1,2,a, Yuting Zhang3,a, PuZhao4,c, Kexiang Wang4,c, Wenqin Lu1,2,a
1Research Institute of Highway Ministry of Transport, Beijing 100088, China
2Key Laboratory of Road Construction & Material of Ministry, Beijing 100088, China
3School of Software, Beijing Institute of Technology, Beijing 100081, China
4School of Computer Science and Technology, Beijing Institute of Technology, Beijing 100081, China
aemail: yeaphon_li@126.com, bemail: zhaojialipu@126.com
Keywords: Web Service; Web Service Matchmaking; Semantic Inner Product
Abstract.
Acknowledgment This work is supported by Natural Science Foundation of Hebei Province (F2009000929).
International Journal of Cooperative Information Systems 2005, 14(4): 407-437
Acknowledgment This work is supported by Natural Science Foundation of Hebei Province (F2009000929).
International Journal of Cooperative Information Systems 2005, 14(4): 407-437
Online since: July 2013
Authors: Li Wang, Yan Hong Du, Wei Yu Zhang, Ruo Kui Chang, Jin Cai Zhao
It greatly reduces workload so that we can pay more attention to the necessary work, and it is not necessary to waste the large number of manpower and material resources only for monitoring the machine operation, which contributes a lot to increase the production automation and efficiency.
Fig.4 Remote Monitoring Interface Acknowledgements The project supported by the Agricultural Science and Technology Development Fund of Tianjin Agricultural Committee, China (No. 201101033).
Tianjin Agricultural Sciences. 2010,16(5),p. 88-90
Present Situation and Prospect on Rural Sewage Treatment Technology..Guangxi Journal of Light Industry. 2009,11,p. 105-106
Fig.4 Remote Monitoring Interface Acknowledgements The project supported by the Agricultural Science and Technology Development Fund of Tianjin Agricultural Committee, China (No. 201101033).
Tianjin Agricultural Sciences. 2010,16(5),p. 88-90
Present Situation and Prospect on Rural Sewage Treatment Technology..Guangxi Journal of Light Industry. 2009,11,p. 105-106