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Online since: August 2009
Authors: L.Q. Yu, Y.P. Zhang, Q.T. Fu
Experimental Starting materials for the preparation of the alloy samples included Nd, Fe, Dy, Al, Nb, Zr, Ga all 99.9 wt % in purity, and a Fe-B alloy with 20 wt. % B and 80 wt. % Fe.
Obtained Nd and Fe content by analysis with EDX of the grains and grain boundary materials, and not any B content would be measured by this technique.
Acknowledgement The financial support for this study by the National Natural Science Foundation of China (No. 20806093) and China University of Petroleum (East China) (Y071808) are gratefully acknowledged.
Rare-Earth Permanent Magnets Materials and Application [M].
Magn. 33(1997) 3841 [8] Wang Zhan-yong, Gu Nan-ju, Wang Bao-qi, etc, Journal of Magnetic Materials and Devices. 01 (2003) 13
Online since: May 2011
Authors: Chao He Chen, Zheng Jun Liao
Introductions With the development of science and technology, new materials and new technologies have appeared.
Therewith, great progress and improvement have been made in materials used and methods of seismic strengthening.
The application of new materials such as steel twisted cable, carbon fiber sheet, FRP, CFRP, GFRP, etc has greatly improved strengthening effect , which makes strengthening method become a research focus in recent decades.
However, in economically underdeveloped regions, rural towns, the higher construction cost of new materials makes it difficult to become a major strengthening method.
Journal of Tianjin University, 1994, 27 (6):764-770
Online since: December 2006
Authors: Hong Yan, Chen Xu, Guo Xiang Chen
Tims[1] reported that the filling behaviors of semi-solid materials were described by computer simulation.
The material adopted in this paper was AZ61 magnesium alloy, and the simulations were performed in forging and thixoforming.
The materials are normal and semi-solid AZ61 magnesium alloy respectively.
Acknowledgement This research was supported jointly by grant No.50465003 from the National Natural Science Foundation of China, grants No.550067 from the Natural Science Foundation of JiangXi Province and the Jiangxi Province Education Commission Foundation.
Zhang: Journal of Plasticity Engineering, Vol.12 (2005), pp.191
Online since: November 2012
Authors: Cong Lu, Ling Gou, Jun Feng Fei
Fig. 1 Initial ICL for Seven Cells Based on the obtained CF result, a total material flow data matrix is got, which is shown in Table 1.
Based on these, the total material handling cost (distance-based) for the initial ICL can be calculated.
By using Eq. 2, the initial total material handling cost for the initial ICL is.
Under this new ICL plan, the total material handling costis further reduced to 28.
Rajagopalan: International Journal of Production Research, 27(6), 1035–1052 (1989)
Online since: December 2012
Authors: Ji Bin Liu, Cheng Jiang Lin, Hui Wang, Zhao Jun Deng
[3] Lu J X, Wang L, Production and Application of High Strength Automotive Steel [J] ,Automotive Technology and Materials, 2004, (2):1~6
Characteristics and Application of High Strength Automotive Steel[J], Automotive Technology and Materials, 2004, (6):13~15
[8] R.O.Rocha, T.M.F.Melo, E.V.Pereloma, D.B.Santos, “Microstructure evolution at the initial stages of continuous annealing of cold rolled dual phase steel”, Materials Science and Engineering A, Vol.391, 2005, p.296~304
[9] M.ERDOGAN, “The effect of new ferrite content on the tensile fracture behaviour of dual phase steels”, Journal of Materials Science, Vol.37, 2002, p.3623~3630
Online since: July 2011
Authors: Ji Long Xie, Wen Jing Wang, Meng Wang, Guang Xue Yang
Test material.
The material’s chemical composition is shown in Table 1 and the mechanical properties are given in Table 2.
Wenjing Wang is grateful to the support from Beijing Municipal Science & Technology Commission and Ministry of Education.
Compliance of elastic bodies in contact[J].ASME Journal of Applied mechanics,1949,16:259-268
Key engineering Material, 2006, 326-328:1701-1704 [10] Mutoh Y, Toyama K.
Online since: September 2007
Authors: Xia Ting Feng, Hui Zhou, Chuan Qing Zhang, Bing Rui Chen
It can be found that R1 is defined on the basis of the assumption that rock material behaves with Mohr-Coulomb's criterion.
According to Eq. 5, we can find that rock material is in the yielding state when 0=YAI , and correspondingly in the relatively safest state when 1=YAI .
Then rock material is in the yielding state when 1=ω , and in the relatively safest state when 0=ω .
(6) where pε is the equivalent plastic strain; rpε is a constant of rock material and equals to the equivalent plastic strain when rock material exactly turns into complete failure state.
Acknowledgements This paper is financially supported by National Science Foundations of China under Grant No. 50204009 and 50579091, the Special Fund for Major State Basic Research Project of China under Grant No. 2002CB412708 and Research Fund of Key Laboratory of Rock and Soil Mechanics, CAS under Grant No.
Online since: September 2013
Authors: Ping Han, Li Li Ma, Nai Wei Zou
Table 4 Buffer Complexity Number of process 4 bj 0.61 pie 0.50 HB 1.83 Table 5 Material Transfer Complexity Number of process 7 mt 0.20 Pt1 0.99 HMHS 0.11 Material Transfer Complexity Material transfer complexity is expressed as Eq. 6
(6) Where: pt-reliability of material transfer; mt-complexity coefficient of material transfer; T-number of material transporter.
Calculation result of material transfer complexity is shown as Table 5.
Acknowledgment The authors gratefully acknowledge the financial support from National Natural Science Foundation of China (Grant No: 51105173) and Natural Science Foundation of Heilongjiang Province (Grant No: E201032).
International Journal of Flexible System,2006(08):145-171.
Online since: March 2014
Authors: Jaroslav Lukeš, Jiří Minster, Martin Šperl
By contrast, non-traditional technologies require very accurate preparation of the semi-finished products, of conditions for moulding or winding, the shapes and materials of the forms that are used, and also the time course of the production operation.
Many indicators are used as measures of internal material damage [1, 2].
Material The tested laminate is composed from eight layers of a satin carbon fabric and a polyphenylensulphid matrix (C/PPS) (see [3]).
Němeček, Chemické Listy, 105 (17), 729-732, 2011 [3] Material specification AIMS 05-09-002, Airbus, 2007 [4] Ju.
Šperl, Journal of Applied Polymer Science, Vol. 123, Issue 4, 2090-2094, 2012
Online since: September 2011
Authors: Wan Shan Wang, Zhao Qian Wang, Ye Zou, Chang Xin Wang, Tian Biao Yu, Hai Feng Zhao
Material removal algorithm Start End Form new position matrix Position matrix Control function Cylinder speed Rotation direction Cutter speed Cylinder trip Cutter head forward Rebuild soil model Wire frame model Exert movement condition Objective position judgment Crushing criteria Initialization Yes No Yes Noo K=K+1 i=i+1 Crushing calculation Fig. 2 Flow chart of material removal This system fully utilizes the simplified Boolean operation to realize the removal of the material.
First step is obtaining the coordinate value of cutters and soil material around tools; the coordinate values are compared by detection function established for the removal of materials; the finally step is show the blasting results after calculations by the function.
Fig.2 shows the flow chart of material removal.
Product 3d graphics network published based on web [J].Journal of Qinghai University: natural science edition,2005,23(5):78-81
Mechanical science and technology2005,24(6):723-729