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By B/GH ratio the brittleness of the material is determined.
Zuo, Advanced aluminum alloys containing rare-earth erbium, Materials Forum, 28 (2004) 197-201
Jin, Ab- initio calculation of mechanical and thermodynamic properties for the B2 based AlRE, Computational Materials Science,40 (2007) 226-233
Khanna, A modern integration of mechanics and materials in structural design.
Mechanics of Materials ISBN 0-12-383852-5, 62-72.

Therefore, AlN is a promising material for deep-ultraviolet (UV) solid-state light sources, such as light-emitting diodes (LEDs) and laser diodes (LDs) [1,2].
Acknowledgements This work was financially supported by the 973 Program (No. 2010CB635115), the National Natural Science Foundation of China (No. 60576005).
Wu: Journal of Shenzhen University Science and Engineering Vol. 27 (2010), p. 433 [2] Y.
Kasu: Diamond & Related Materials Vol. 17 (2008), p. 1273 [3] Y.
Meng: Journal of Synthetic Crystals Vol. 38 (2009), p. 761 [8] P.

Appearance modeling Consumers generally have double requirements for appearance modeling of products. one is material, the other is spiritual.
But good designs are that make use of modern science and technology and produce products which are people-oriented, closed to the natural life, souled and full of love.
So the products can give more attentive care and human love, and they also satisfy the users in material and spiritual aspects.
Holbrook: Journal of Marketing Vol. 46 (1982), p. 92 [2] Y.
Xu: Journal of Harbin University of Science and Technology Vol. 6 (2001), p. 44

The excellent material, administrative, technological conditions have cooperated efficiently to guarantee the protection and utilization of many species.
Acknowledgements This work was financially supported by Education Commission of Anhui Province of China (KJ2013A070) and Science and Technology Foundation of Anhui Provincial Department of Housing and Urban-Rural Development (2012YF-11).
[4] Kongjian Yu: Architectural Journal Vol.7 (2010), p. 30-35,in Chinese
[7] Fengquan Ji , Jinlong Chu : Applied Mechanics and Materials Vols. 174-177 (2012), p. 2646-249
[8] JI Fengquan ,Zhang Yaosheng，Zhang Dunlan: Journal of Anhui Institute of Architecture & Industry(Natural Science) Vol. 6 (2005), p. 65-67,in Chinese.

The Numerical Simulation Research of Steam Heating Process of Heated Mandrel Winding Jiazhong Xu1, a, Ming Qiao1,b, Wenbo Zhang1,c, Xinying Wang1,d 1 The School of Automation, Harbin University of Science and Technology, 52 Xuefu Road Nangang District, Harbin, Heilongjiang, P.
Thirdly, the bubble generated during the curing reaction can be exhausted in time, which is beneficial to resin flow and material compacting thus the composite shell molded has better quality and performance.
Thus, the composite cures layer by layer from the inside out, which is beneficial to material compacting, resin flow and bubble excretion.
Acknowledgement This work is supported by National Nature Science Foundation of China No. 50902039.
SAMPE Journal, Vol.37 (2001) No.1, p.7-11 [2] ABDEL - HADY F.: Filament Winding of Revolution Structures.

The Thermal Error Prediction of NC Machine Tool Based on LS-SVM and Grey Theory Changlong Zhao1,a , Yiqiang Wang1,a and Xuesong Guan2,b 1 College of Mechanical Science and Engineering, Jilin University, Changchun Jilin, China, 130022 2 School of Mechatronic Engineering, Changchun University of Technology, Changchun jilin, China, 130012 a zhao19790204@126.com, bguanxuesong@email.jlu.edu.cn Keywords: NC machine tool, Least Square Support Vector (LS-SVM), Grey theory, Prediction Abstract.
In the experiment, the deformation in axial is obtained directly by measuring the core shaft which is clamped on the spindle, the material of the core shaft is special, the thermal sensitive degree of which is low, so the deformation of core shaft can be ignored.
Yang: Journal of Materials Processing Technology, Vol. 207 (2008), pp.172-179
Xu: Corrosion Science, Vol. 43 (2001), pp.881-889
Chen: Journal of Zhejiang University (In Chinese), Vol. 42 (2008) No. 6, pp.905-908

Kapok fiber is often used as a stuffing material, buoyancy material, and oil-absorbing material, and also is blended with other cellulose fibers [2].
[2] Meiwu Shi, Hong Xiao and Weidong Yu: Textile Research Journal,2010, 80(2): 159–165
[4] Mwaikambo and L.Y: African Journal of Science and Technology (AJST) Science and Engineering Series 2006 7(2): 120 - 133

Materials and Methods Wastewater characterization.
It maybe because the wastewater of nitrogen fertilizer production used in this experiment contained some complex material that restrained the nitrosation reaction.
Journal of Environment and Engineering Vol.127(2001), p. 266 [7] K.
Journal of Chongqing University(Nature Science Edition) Vol. 27(2004), p. 111 [10] C.D.
Environmental Science Vol. 31(2010), p. 2385 [11] MSM Jetten, M.

Materials and methods Study site Harbin-Suifenhe highway is 445.324 km long, its soil and water conservation measures is synchronized with the highway construction.
Journal of soil and water conservation.
Journal of soil and water conservation.
Shanxi forest science and technology.
Science of soil and water conservation.

Interfacial debonding conditions often occur between core concrete and steel tube wall due to the concrete material properties and the pouring construction technology, which directly affect the quality and safety of CFST structure [1, 3].
Table 1 Mix proportion of C40 concrete (the addition amount of expansion agent is 10%) Material Cement Fly Ash Sand Stone Water Water-reducing Admixture Expansion Agent Consumption（kg/m³） 437 44 726 1044 154 8.74 43.7 Table 2 Mix proportion of C40 concrete (the addition amount of expansion agent is 12%) Material Cement Fly Ash Sand Stone Water Water-reducing Admixture Expansion Agent Consumption（kg/m³） 437 44 726 1044 154 8.74 52.4 Results of Artificial Tapping Method Several points of the four sections were tested by using tapping with a hammer in accordance with some requirements, and it can be considered to have no debonding zone preliminary because the echo of all of points sounded normal.
(Science Press, China, 2000) [2] S.G Hu and Q.J Ding.
China Journal of Highway and Transport, Vol.22(2009), No.6,p.82 ~ 89
Journal of Huaqiao University (Natural Science), Vol.33(2012), No.2,p. 188 ~ 191