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Materials and methods Strains and culture conditions.
Acknowledgements This project was financially supported by the natural science foundation of Heilongjiang province (C201118).
Qi: Journal of south China agricultural university Vol. 4(2003), p. 24-27 [3] S Q Chen, B Wu, Z Qin, G Z Liu L Deng, X M Deng: Journal of southwest agricultural.
He：Gansu agricultural science and technology Vol. 9(2002), p. 44-45 [9] C.F.
Zhang: Soybean science Vol. 24(2005), p. 171-175 [13] D.M.

The elastic material was adopted as the rock material for the calculation.
[3] R.Q.Huang, W.L.Li: Chinese Journal of Rock Mechanics and Engineering.
[9] Y.L.HE, S.Y.LU:Chinese Journal of Geotechnical Engineering.
[10] D.PENG, L.L.CHENG: Journal of Yangtze River Scientific Research Institute.
[11] L.J.TAO, S.R.SU, Z.Y.ZHANG:Journal of Engineering Geology.

References [1] Nazrul Idzham Kasim et al, (2015), “Improvement of Overall Equipment Effectiveness (OEE) through implementation of Total Productive Maintenance (TPM) in manufacturing industries”, Applied Mechanics and Materials, Vol. 761, pp. 180-185 [2] Arunraj K and Maran M, (2014), “A review of tangible benefits of TPM implementation”, International Journal of Applied Sciences and Engineering Research, Vol. 3(1), pp. 171-176 [3] Vivek B Patel and Hemant R Thakkar, (2014), “Review study on improvement of overall equipment effectiveness through total productive maintenance”, Journal of Emerging Technologies and Innovative Research, Vol. 1(7), pp. 720-726 [4] S.Nallusamy, (2015), “Lean manufacturing implementation in a gear shaft manufacturing company using value stream mapping”, Int.
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Vijaya kumar et al, (2014), “Production planning and process improvement in an impeller manufacturing using scheduling and OEE techniques”, Procedia Materials Science, Vol. 5, pp. 1710-1715 [8] A.P.
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Influence of Aging on Microstructure and Mechanical Properties of Wrought Magnesium Alloys Yong Xue 1, a, Zhimin Zhang 1, b, Lihui Lang 2, c, Hui Yang 1, d 1 North University of China, School of Material Science and Engineering, 030051 Taiyuan, China 2 Beihang University, School of Mechanical Engineering and Automation, 100191 Beijing, China amerryjukii@hotmail.com, bzhangzhimini@nuc.edu.cn, cforge54@163.com, dping8191@sohu.com Keywords: aging, microstructure, mechanical properties, AZ80 magnesium alloy, ZK60 magnesium alloy Abstract.
Experimental materials and methods Mg-8.9wt%Al-0.53wt%Zn alloy and Mg-(5.0-6.0) wt%Zn-(0.3-0.9) wt%Zr alloy ingots with an outer diameter of 300mm are adopted as the materials for experiment.
Firstly, intercept along the axial direction from the ingot a piece of slab with a thickness of 15mm as sample material.
Acknowledgements The present research is sponsored by National Natural Foundation of China (No.50735005, No.50605059), Shanxi Provincial Science Foundation for Youths of China (No.2007021026), and Development for Science and Technology in Higher Educational Institutes (No. 20081027).
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Introduction GCr15 bearing steel hardened to HRC 50~65 is classified as difficult-to-cut materials.
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Cutting speed database contains the recommended speed when one tool cuts named material.
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