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For small-sized gears, lightweight materials (such as aluminum alloy and plastics) are adopted to achieve WRD.
And SIMP (simple isotropic material with penalization) model can be adopted [7].
Acknowledgements This research is supported by the National Natural Science Foundation of China (Grant No.50675155).
Lee: International Journal of Automotive Technology Vol.10 (2009), p321 [4] Christina Schäfer, Eckhard Finke: Struct.
Vol. 36 (2008), p.477 [5] Qin Datong, Gu Xiguo, and et al: Journal of Chongqing University Vol.32 (2009), No.4, p.408 (In Chinese) [6] Yang Chen, Hao Zhiyong, Liu Baolin: Journal of Zhejiang University (Engineering Science) Vol. 43(2009), No.5, p. 916 (In Chinese) [7] Martin P.

Resource using index Resources use index is mainly considered from the perspective of road construction materials, and expressed by local construction material utilization rate (LCMU) which is obtained using Eq.(8) (8) Where, is the No.i local construction material plan cost , the quantity of local construction materials species; the total building material plan cost .
Journal of Northwest Sci-Tech University of Agriculture and Forestry (Natural Science Edition), Vol.30(2)(2002),p.111-114(in chinese) [2] Xiaodong Song, LV Di.
Journal of urban planning.
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Material Behavior.
In China ALC block product composed of all kinds of auxiliary materials has been widely used to fill internal or external walls of steel structure building.
Progress in Structural Engineering and Materials Vol. 4 (2002), p. 320 [2] Roger D.
Bennett: Journal of Structural Engineering (ASCE) Vol. 125(6) (1999), p. 590 [3] T.
Lo: ACI Structural Journal July-August (1988), p.423 [4] LIU Yushu, LI Guoqiang: Journal of Building Structures Vol 26 (3) (2005), p. 78 (In Chinese) [5] B.

Experimental Methods The experimental materials used in this paper is provided by Shanghai Krupp Stainless Co, Ltd. its chemical composition shown in Table 1, the remaining components of Fe, not listed in the elements is zero.
Finally, the intensity of material was increased.
Journal of Applied Physics, 1990, 68(2),775-782 [3] Ren,Wang Kezhi ,Huang Xiang Zhu. made.Plastic Mech -anics.
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Experimental Design The raw material and the mixture ratio of self-compacting concrete.
The raw materials of the experiment is that P.C32.5 composite portland cement of Shanshui, broken stones in Laoshan with particle size 20~30mm, medium sand, tap water, 2% dosage of efficient aliphatic water reducing agent (liquid), 4% dosage of early strength agent[3, 4].
A Pilot Study on Integrated Properties of Rock-Filled Concrete[J].Journal of Building Materials.
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Journal of Hydraulic Engineering, Vol. 36(2005), p.1347, China

Meanwhile, Ismojo et al. [13] have made MFC using sorghum raw materials.
Materials and Method Materials.
Journal of Materials Physics and Chemistry, 2 (2014) 1-8
In IOP Conference Series: Materials Science and Engineering, 223 (2017) 012057
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Tao, Research Development of Nickel Ferrite Based Cermet Inert Anode Materials, Chin.
[7] Kechao ZHOU, Zhiyou LI, Lei ZHANG．The Cermet Inert Anode Materials for Aluminum Electrolysis.Changsha: the Press of Central South University，2012, p.51-67
Journal of Applied Electrochemistry, 29 (1999) ,p.301-311
Behaviour and Material Properties of the Grain Boundary on the Surface of an Anode during the Formation of a Dense Layer, Applied Mechanics and Materials, 508 (2014) p. 61-65 [15] Hanbing HE, Zhaohui CHEN.
Materials Science and Engineering of Powder Metallurgy, 10(2005), 2, p. 110-115

Alberto Lamego, 2000, 28013-602, Campos dos Goytacazes, Brazil. 2- IME - Military Institute of Engineering, Department of Materials Science, Praça General Tibúrcio, 80, 22290-270, Rio de Janeiro, Brazil.
Here it is worth mentioning that the concentration of Si, Al and Fe found in natural materials such as sand, clay and gravel might usually be found above the limits.
Monteiro: Materials Science and Engineering A.
Acchar: Applied Clay Science Vol. 30 (2005), p.42
Pozzolanic materials – determination of the pozzolanic activity with Portland cement.

Experimental Method Materials.
Arshad, Applied Clay Science Hydrothermally synthesized zeolites based on kaolinite : A review, Appl.
Ragone, Microporous and Mesoporous Materials The crystallisation of zeolite ( X- and A-type ) from fly ash at 25°C in artificial seawater, Microporous Mesoporous Mater.162 (2012)115-121
Hadnine, Applied Clay Science Adsorption of methylene blue from aqueous solution by kaolin and zeolite, Appl.
Ramdhani, Adsorption of Cr, Fe, Cd, Co ions onto raw and treated Indonesian sub-bituminous coal, ARPN Journal of Engineering and Applied Sciences.11 (2016)5217-5220.

FEM-Based Simulation and Gripper Jaw Trajectory Fitting of Stretch-bending Process for a Bending Beam of Railway Vehicles Shengman Wang1, a, Xinhua Yang1, b, Xing Lu1, c 1School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China awangshengman888@163.com, byangxhdl@gmail.com (corresponding author), clu@djtu.edu.cn Keywords: Simulation; Trajectory fitting; Stretch-bending process; Bending beam Abstract.
Material Model.
Computational Material Science and Surface Engineering. 2009, 1 (2):106-111 [2] M.
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International Journal of Mechanical Sciences, 2001, 43: 427-453.