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Online since: November 2011
Authors: Yoshinobu Motohashi, Goroh Itoh, Yutaka Matsuda
Microstructure Control and Mechanical Properties of 7075 Aluminum Alloy by Means of Multi-Pass Friction Stir Processing
Yutaka Matsuda1,a , Goroh Itoh2,b and Yoshinobu Motohashi2,c
1,2Graduate School of Science and Engineering, Ibaraki University, 4-12-1Nakanarusawa, Hitachi-city, Ibaraki, 316-8511 Japan
1Japan Boiler Association, 5-3-1 Shimbashi, Minato-ku, Tokyo, 105-0004 Japan
ayutaka-matsuda@jbanet.or.jp, bgitoh@mx.ibaraki.ac.jp, cymotoha@mx.ibaraki.ac.jp
Keywords: Friction stir processing, Aluminum alloy, Microstructure, Mechanical properties
Abstract.
Therefore, it is underway to apply aluminum alloy for weight reduction of structure material in transportation machines.
Hirano: Journal of the Japan Welding Society Vol.74, No.3, April (2005), P. 9 [3] N.
Therefore, it is underway to apply aluminum alloy for weight reduction of structure material in transportation machines.
Hirano: Journal of the Japan Welding Society Vol.74, No.3, April (2005), P. 9 [3] N.
Online since: November 2012
Authors: Jin Li
Research on gasoline antiknock additive affect to vehicle
LI Jin
(1 Shanghai University of Engineering Science, Shanghai
lijin0106@126.com)
Keywords: MMT, emissions, oxygen sensor, three-way catalytic converter
Abstract: MMT had been used widely as an antiknock additive in petrol.
If the old catalytic converter with MMT influence, the catalyst surface will cover with a layer of coating material, leading to the gas through its surface contact area is reduced, so that the catalyst conversion efficiency decreased.
Zhengzhou University Journal, 2007,6 (2): P93-96 [3] Xu Qiwen,Xu Zhao Fa.
If the old catalytic converter with MMT influence, the catalyst surface will cover with a layer of coating material, leading to the gas through its surface contact area is reduced, so that the catalyst conversion efficiency decreased.
Zhengzhou University Journal, 2007,6 (2): P93-96 [3] Xu Qiwen,Xu Zhao Fa.
Online since: December 2013
Authors: You Ping Fan, Chuan Liu, Yong Sun, Qi Long, Fang Ming Yang
Arcing, Corona discharge ,low energy sparking, severe over loading and overheating of insulation system are some of the problems causing decomposition of the insulating material.
[2] SUN Yan-jing, ZHANG Shen, MIAO Chang-xin, LI Jing-meng, “Improved BP Neural Network for Transformer Fault Diagnosis”, Journal of China University of Mining & Technology, Vol.17 No.1, pp. 138–142, Mars 2007
[8] Rahmatollah Hooshmand and Mahdi Banejad, “Application of Fuzzy Logic in Fault diagnosis in Transformers using Dissolved Gas based on Different Standards”, World Academy of Science, Engineering and Technology 17, pp. 157–161, 2006
[2] SUN Yan-jing, ZHANG Shen, MIAO Chang-xin, LI Jing-meng, “Improved BP Neural Network for Transformer Fault Diagnosis”, Journal of China University of Mining & Technology, Vol.17 No.1, pp. 138–142, Mars 2007
[8] Rahmatollah Hooshmand and Mahdi Banejad, “Application of Fuzzy Logic in Fault diagnosis in Transformers using Dissolved Gas based on Different Standards”, World Academy of Science, Engineering and Technology 17, pp. 157–161, 2006
Online since: May 2013
Authors: Lu Wei
Reservoir numerical simulation technology bases on Fick’s law what CBM follows by the diffusion in reservoir matrix and Darcy's law in the cleat fissure system, depending on these laws, continuous partial differential equation or equations of gas, water, oil fluid material can be established, some more well-known software about reservoir simulation have ARI company's COMET and COMET3-D, Holditch company’s COALGAS, etc..
Supported by the National Science and Technology Major Project (ID: 2011ZX05040-003-003) References [1] National Energy Administration.
Journal of Hydrology, 2008, 358: 317-331.
Supported by the National Science and Technology Major Project (ID: 2011ZX05040-003-003) References [1] National Energy Administration.
Journal of Hydrology, 2008, 358: 317-331.
Online since: March 2012
Authors: Yu Cao, Yi Feng Zheng, Xiao Cong Xi
Fixed arch is three times statically indeterminate structure, owing to weight and external loads, the moment is more evenly distributed within arch and it’s material-saving.
[2] Min Zhang, Shuixing Zhou, Mianyi Hu: Traffic Science and Technology of Highway Vol.2(2003), p.28-30, in Chinese
[4] Zhean Lu, Qingliang Yu, Juanjuan Li: Journal of Wuhan University of Technology Vol.3(2006), p.38-44, in Chinese
[2] Min Zhang, Shuixing Zhou, Mianyi Hu: Traffic Science and Technology of Highway Vol.2(2003), p.28-30, in Chinese
[4] Zhean Lu, Qingliang Yu, Juanjuan Li: Journal of Wuhan University of Technology Vol.3(2006), p.38-44, in Chinese
Online since: June 2012
Authors: Zhen Hua Bao, Xiong Jun Zhu
The Design and Implementation of Color-Matching CAD Software Based on Elementary-Weave-Structured Woven Fabric
Xiongjun Zhu *1, a, Zhenhua Bao 2,b
1 Department of Computer Science, Wuhan Polytechnic, Wuhan 430074 ,China
2 School of Light Industry, Textile&Clothing Engineering, Wuhan Polytechnic, Wuhan 430074,China
azhuxiongjun@126.com, b zhb2004129@163.com
Keywords: elementary weave structure, woven fabric, color-matching CAD, software development.
Journal of South—Central University for Nationalities (Nat.Sci.Edition).V01.29(2010), p.107 [4] Huang CuiRong, in: Textile material design, edited by China Textile & Apparel Press, Beijing(2007), in press
Journal of South—Central University for Nationalities (Nat.Sci.Edition).V01.29(2010), p.107 [4] Huang CuiRong, in: Textile material design, edited by China Textile & Apparel Press, Beijing(2007), in press
Online since: January 2012
Authors: Huang Qiu Zhu, Wei Yu Zhang, Ying Ruan, Xiao Yan Diao
Table 1 Related parameters of AC-DC-3DOF-HMB
Item
value
Item
value
Air gap lengthδ0/mm
0.5
axial length of permanent/ mm
/ mm
14
Saturation induction BS/T
1.67
Boots thickness/ mm
/mm
4
Permanent magnet material
Nd-Fe-B
Root width/ mm
18
Current density J max/ A/mm2
4
Outer diameter of axial stator yoke/mm
/ mm
93
(Nziz)max/ At
160
Outer diameter of permanent magnet/mm
/ mm
88
(Nrir)max/ At
320
Inside diameter of permanent magnet/mm
/ mm
82
Angle of magnetic pole a /(°)
92
Inside diameter of radial stator / mm
64
Control System Structure of AC-DC-3DOF-HMB
The control system design for AC-DC-3DOF-HMB mainly includes three aspects: prototype design, hardware design and software design.
Acknowledgements This work is sponsored by the Foundation of Jiangsu Province (BK2009204), the National Natural Science Foundation of China (60974053), and the Research Fund for the Doctoral Program of Higher Education of China (20093227110002).
Zhu: Principles and parameter design for AC-DC three-degree freedom hybrid magnetic bearing, Chinese Journal of Mechanical Engineering, Vol. 19 (2006), p. 534-539
Acknowledgements This work is sponsored by the Foundation of Jiangsu Province (BK2009204), the National Natural Science Foundation of China (60974053), and the Research Fund for the Doctoral Program of Higher Education of China (20093227110002).
Zhu: Principles and parameter design for AC-DC three-degree freedom hybrid magnetic bearing, Chinese Journal of Mechanical Engineering, Vol. 19 (2006), p. 534-539
Online since: September 2013
Authors: Ying Qin Chen, Xian Feng Huang
To be specific, convert different types and incomparable material, energy and currencies within crop production systems into energy of the same metric to compute inputs and outputs of agricultural production systems, obtain agricultural irrigation benefit sharing coefficient by calculating the ratio of total energy of irrigation inputs and that of crop production system inputs, and finally analyze agricultural irrigation benefit using various energy indicators [6].The expressions are as follows:
(4)
(5)
where, E3 is agricultural water-use benefit; is agricultural irrigation benefit-sharing coefficient; is total energy of agricultural irrigation inputs; is total energy of crop production system inputs; is total energy of the crop production
Journal of Economics of Water Resources, 2010, 28(1):1-4
System Sciences and Comprehensive Studies in Agriculture, 2005, (01):29-36
Journal of Economics of Water Resources, 2010, 28(1):1-4
System Sciences and Comprehensive Studies in Agriculture, 2005, (01):29-36
Online since: August 2013
Authors: Fei Fei Yu, Xian Ju
The HOPSCA meets the public's material and spiritual needs, and can enhance the quality of the city, to have higher popularity and endurance.
[5] Chiyu Chen:Journal of Huazhong Normal University (Humanities and Social Sciences version).Vol.6(1991),P.52.In Chinese.
[5] Chiyu Chen:Journal of Huazhong Normal University (Humanities and Social Sciences version).Vol.6(1991),P.52.In Chinese.
Online since: September 2011
Authors: Zhi Hua Li, Jing Dai
If high quality iron core is used, the no load loss decreases; if the appropriate winding material is applied, the load loss could decrease.
Reference [1] B.Q, Yu: A No Load Experimental Method for Power Transformer at Test Field [J] (China Academic Journal Electronic Publishing House.2002), p.65
[4] C.L, Gu and Q.F, Chen: Electric Machinery Theories [M], (Huazhong University of Science and Technology press, 2005), p.118
Reference [1] B.Q, Yu: A No Load Experimental Method for Power Transformer at Test Field [J] (China Academic Journal Electronic Publishing House.2002), p.65
[4] C.L, Gu and Q.F, Chen: Electric Machinery Theories [M], (Huazhong University of Science and Technology press, 2005), p.118