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Online since: January 2005
Authors: Deng Hua Li, Ke Li, Yang Cheng
In order to differentiate out with the electromechanical coupling coefficient of material, the electromechanical coupling coefficient to call the compound structure is effective electromechanical coupling coefficient, keff , ( index eff shows the effective ) .
This work was supported by Natural Science Foundation Committee of China (60172008).
Li Denghua, Xia Song, Finite Element Analysis on Cymbal Piezocomposite Transducer, Journal of Functional Materials and Devices, Vol.8 (2002).p.155~160
Online since: July 2011
Authors: Shu Ai Wang, Feng He Tao, Chang Zhi Jia
Establishment of Index System Influencing Cleaning Quality In this article, from the perspective of 5M1E (Man, Machine, Material, Method, Measure and Environment), by using AHP [4] to establish hierarchical and ordered structure method, the index system influencing cleaning quality is established.
Formula of chemical cleaning liquid is chosen by component of scale and metal material.
Through investigation, chemical cleaning liquid is only chosen by metal material in this factory.
Science and Technology Management Research, 2007, 27(10): 97-99 [4] Ling Qi, Xianchao Wang, Xianghui Du.
Journal of Henan Mechanical and Electrical Engineering College, 2009, 17(3): 33-35 [5] Chunyan Shao, Tang De-shan.
Online since: December 2011
Authors: Liao Yuan Zhang, Yong Yang, Jian Guang Wang, Chao Wang
Basic Principle of Electrical Discharge Machining EDM is a manufacturing process whereby a piece with desired shape, size, and surface is obtained using electrical discharges.[2] Material is removed from the workpiece by a series of rapidly recurring current discharges between two electrodes (one is called tool-electrode while the other is called workpiece-electrode).
Figure 3 Machining Size of the Micro Thin-walled Miniature Impeller 3.3 Results and Analysis 3.3.1 Machining Accuracy and Quality Experiments parameters are shown as follows: Voltage 100V Pulse Width 10μs Pulse Current 4A Electrode Material Hard Alloy Electrode Diameter 0.4mm Dielectric Discharge Oil Material of Work Piece Aluminum Alloy The experiment processing method is layered manufacturing, the piece is milled in 10 layers while the machining depth is 0.1mm.
Journal of Manufacturing Science and Engineering,2004, 126: 727~731 5.
Online since: October 2013
Authors: Jian Xi Yao, Hong Lu Zhu
Adaptive filter can operate well in unknown environment and its statistic of tracking input changes with time, thus adaptive signal processing becomes a new branch of science of signal and information processing, and has been widely applied in telecommunication, industrial control, seismology, biomedical engineering and other fields.
Dynamic-statistic prediction method may also be used for prediction of PV power station capacity; the method makes time serial analysis according to history observation material, without regard to physical significance of photovoltaic conversion, the greatest feature of the method is simplicity.
LAPS13005) References [1] Zhu Honglu, Yao Jianxi:Advanced Materials Research, vol. 724-725(2013),p.3
Chandra:Journal of Global Energy Issues, vol. 21(2004)p. 119
Online since: February 2013
Authors: Yan Fen Liao, Xiao Qian Ma, Jing Hui Song, Shu Mei Wu, Zhi Gang Fan
The experimental material came from Zhanjiang Guangdong province of China, such as Eucalyptus broken wood, eucalyptus bark, sugar cane leaves and bagasse.
Acknowledgement This work was supported by National Basic Research Program of China(973 Program) (2011CB201500); the National Natural Science Foundation of China (No. 50906025); the Fundamental Research Funds for the Central Universities(2012ZZ0022); Key Laboratory of Efficient and Clean Energy Utilization of Guangdong Higher Education Institutes (KLB10004); Key Laboratory of New Lithium-ion Battery and Mesoporous Materials (20110213); Guangdong Provincial Key Laboratory of Atmospheric environment and Pollution Control.
Wei-jun LIU, Peng-cheng LI, GUO Yan, Journal of Shanghai University of Engineering, Vol 25(2011) p. 287-291.
Online since: July 2013
Authors: Zheng Chen, Qiong Ming Jiang, Lu Feng Yang, Xi Bin Zhao, Yan Hua Yuan, Zhong Hua Wang
Final set (min) Compressive strength(MPa) CaO replacement (%) Fly ash replacement (%) 3d 28d 387 134 188 30.3 54.0 5.2 7.0 Table 3 The chemical composition and physical property of mineral admixtures Mineral admixtures Chemical composition Physical property SiO2 (%) Al2O3 (%) Fe2O3 (%) CaO (%) 0.045mm screen residue(%) Density (g/cm3) Specific surface area (m2/kg) Fly ash 51.56 23.11 8.67 2.34 0.08 2.33 431 Slag 33.68 14.85 0.67 38.04 5.3 2.88 384 Silica fume 95.98 0.17 - - 0.0 2.11 22000 Table 4 The mixture proportions of concrete Group Water (kg/m3) Cement (kg/m3) Fly ash (kg/m3) silica fume (kg/m3) slag (kg/m3) Sand (kg/m3) Coarse aggregate (kg/m3) A0 130 400 0 0 0 790 1185 B1 130 280 120 0 0 779 1168 C1 130 200 200 0 0 770 1155 C2 130 200 180 20 0 769 1154 C3 130 200 120 20 60 775 1162 D1 130 120 280 0 0 762 1148 D3 130 120 140 20 120 772 1158 Based on the mix design method of high-performance concrete designed by Malhotra[9], the water content is 130kg/m3 and the binding material
Acknowledgements The financial support received from the Key Project of Guangxi Science and Technology Lab Center (LGZX201002) is gratefully acknowledged.
Poulsen, et al, ACI Materials Journal, 93 (1996) 602-608 [6] L.
Online since: November 2012
Authors: Ping Liu, Yi Fu Gong, Hai Gong Jin, Ping Ding Yi
Other areas include Advanced Structural Analysis, Connection Design, Raw Materials, Design Guides, to name but a few.
Analysis model is the finite element method model, for example, node, element, section and material, besides, analysis model also including post-proceeding data, which usually referred to the displacement and stress.
Building Science, 2003. 19: p. 62-64
CHINA CIVIL ENGINEERING JOURNAL, 2007. 40(2)
Online since: July 2011
Authors: Kai Guo Fan, Li Yan Yang, Jian Guo Yang
Fig. 1 A stepped shaft Fig. 2 Cutting force induced errors fitting According to the empirical formula, the cutting force F can be calculated as following (4) where CF denotes the coefficient related to the work piece material and the working conditions. xF, yF , zF is the index related to the depth of cut, the feed rate, and the spindle speed, respectively.
Acknowledgements The paper is Sponsored by the Important National Science & Technology Specific Projects of “Top Grade CNC Machine Tools and Basic Manufacturing Equipment” (No.2009ZX04014-22).
Yang, et al: Chinese Journal of Mechanical Engineering, in press (2011) [3] S.
Ratchev et al: Advanced Materials and Processing Technologies (2000) [5] R.J.
Online since: December 2010
Authors: Dong Man Yu, Yi Xiong, Zhi Hua Gao, D. Wang, Xiao Jing Li
Wang1 1Engineering Research Center for Flexible Manufacture, Henan Polytechnic Institute, Nanyang 473009, China 2Plasma Physics Institute, Chinese Academy of Sciences, Hefei 230031, China ayudongman@126.com Keywords: reverse engineering, data process, coordinate measuring machine, data smoothing Abstract.
In addition, with the help of RP (rapid prototyping) technology, a particular manufacture technology, the additive process, which is different from the formerly dislodging material technology, we can replicate or manufacture the improved production and could quickly evaluate or modify the production[4-6].
Zhang: Journal of Materials Processing Technology Vol.139 (2003), p. 472–475 [5] P.Maresca: Engineering Applications of Artificial Intelligence Vol.13 (2000), p.99-107 [6] Y.P.
Online since: September 2014
Authors: Yuan Sheng Dong, Li Jun Zhang, Ai Min Li
This paper reference literature [10], combined with the actual work of representative equipment maintenance, evaluated the overall packing from packaging materials, packaging identification, packaging technology and packaging protection requirement, drafting table, to 1 points for the full value ,and then minus points, as shown in table 7.
Table 7 Packaging integrity Deduction table Project Deduction The paint is not perfect -0.05 A member of packaging material is not correct -0.1 A component packaging logo was not clear or correct -0.1 A component package did not meet the corresponding requirements -0.1 A component protection do not meet the requirements -0.1 Other indicators’ computing mode is shown in Table 8.
[6] De-cai Wei, Zheng-min Zhang, Chuang-Li, in: China Safety Science Journal,vol.22(2012), p. 107-111
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