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Shanov et al [10] found that the maximum erosion rate is at 90° incidence angle for materials which are of a brittle nature.
Materials Science & Technology, 2006; 14(1): 78-80 [5] Pu Zelin, Liu Zongde, Yang Kun et al.
The Chinese Journal of Nonferrous Metals. 2005, 15(2):295-299 [6] Pu Zelin, Liu Zongde, Yang Kun et al.
Journal of the Chinese Ceramic Society. 2005, 33(1):42-46 [7] Pu Zelin, Yang Kun, Liu Zongde et al.
Rare Metal Materials and Engineering. 2005, 34(4):670-672 [9] G.Q.

In resent years, although there are reports[2-5] about the applications of metal tailings, which occupies over 1/3 component of industrial solid waste, to building materials, mine or roadbed filling and other aspects, their comprehensive utilization rate can only be about 7%, far behind the average rate of 60% in foreign developed countries’[6].
Moreover, the data obtained in the experiments were compared with cement-based materials like cement mortar and the cement-mixed soil under the same conditions.
Raw materials and proportioning design The superfine iron tailings for experiments, a high-silicon-based one, come from Anshan Iron and Steel Group Mining Gongchangling, which belongs to a kind of common cyclone-type dam tailings (the main mineral components are in Table 1.
References [1] Ministry of Industry and Information Technology issued special plan for the comprehensive utilization of metal mine tailings (2010 ~ 2015) (2010) [2] Yang qing, Pan Bao-feng, He Yun-min.: Transportation Science & Technology.
Vol.12(2009), p.151 [6] Dramane Traore, Julia Ellis Burnet. : Environmental Research Journal Vol.2(2008), p. 205 [7] Ning Bao-kuan. : Northeastern University(2006) [8] Ning Bao-kuan, Zheng Nan, Chen Si-li. : Journal of Shenyang University of Technology Vol.8( 2008), p.477

Acknowledgement This work was financially supported by the Natural Science Foundation of China(Research Grant No. 51108176).
Journal of Southwest Jiaotong University. 2010, 45(5):787-793(in Chinese)
Chinese Journal of Geotechnical Engineering, 2003, 25(6): 710-714(in Chinese)
Chinese Journal of Rock Mechanics and Engineering,2003, 25(6): 710-714(in Chinese)
Chinese Journal of Rock Mechanics and Engineering, 2005,24(3): 490-495(in Chinese).

The modeling principle of material balance is “Cumulant = inflow – outflow + variable quantity”, and it also depends on the structure of A2/O process.
In the view of every component having the same equations, we take component i for example, and its material balance equations established in anaerobic tank, anoxic tank, aerobic tank are Eq. 1, Eq. 2 and Eq. 3, respectively
By solving the material balance equations, the estimated value of component parameters is obtained, and comparing it with the normal value of corresponding parameters, we get the fault information in preparation for the input of expert system.
Acknowledgements This work was financially supported by the National Natural Science Foundation (No.60903005) (China).
[4] Junqi Wu, Huizhen Wang: China Water & Wastewater Vol. 24(1998), p. 13-17 In Chinese [5] Jianwen Guo, Dejie Yu and Jian Liu: Computer Engineering Vol. 36(2010), p. 22-24 In Chinese [6] Shitong Wang, Faqiang Zhou: Journal of Computer Research and Development Vol. 24(1990), p. 55-64 In Chinese [7] E．F．Carrasco, J．Rodrguez and A．Punal: Expert Systems with Applications Vol. 22(2002), p. 11-20 [8] Xin X Zhu, Angus R Simpson: Journal of Environmental Engineering Vol. 122 (1996), p. 822-829 [9] Wenju Lai, P M Berthoues: Journal of Environmental engineering Vol. 116 (1990), p. 890-909 [10] Maozu Guo, Huamei Sun and Tiyun Huang: High Technology Letters Vol. 12(2002), p. 1-4 In Chinese [11] Risto Laukkanen and Jorma Puriainen: Wat Sci Tech, Vol. 24(1991), p. 299-306

Application of powder materials in the HIP process helps to shape the product into the desired form and size with only minor discrepancies between the actual and target values.
Powder material is Х12МФ.
Acknowledgments The work was carried out with financial support from the Russian Ministry of Education and Science in the framework of the project «Creating a high-tech production of materials, products and equipment using additive technologies and gas conditioning technologies on the basis of PJSC RUSPOLIMET» under Agreement No. 075-11-2019-084 of 12/18/2019 (Decree of the Russian Government Federation of April 9, 2010 No. 218).
Conf. on Hot Isostatic Pressing, Elsevier Applied Science, London and New York, 1991, pp. 23–28 [3] C.
Wu, Journal of Materials Processing Technology 182 (2007) 39-49 [11] D.

Through studying further the calculated member, the behavior of materials subjected to moment is given.
Finite element model Material constitutive.
Journal of Northeast University, 2007, 38(12):1032-1035.
Science Press, 2007:70.

Optimization of Ultra-fine Limestone Filler on Cement Grain Composition Wen Xua, Fei Guob and Qian Tianc State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Jiangsu Bote New Materials Co., Ltd., Nanjing 210008, China axuwen@cnjsjk.cn, bguofei@cnjsjk.cn, ctianqian@cnjsjk.cn Keywords: limestone filler; grain composition; rheology; Andreasen model; cement.
Introduction Limestone Filler (LF) has been studied and applied in cement-based materials widely more than thirty years as a kind of effective mineral fillers.
Materials and Procedure.
TU, Application of limestone filler, Science and Technology of Overseas Building Materials, 20 (1999) 47-51
[2] Dubey Sanjay Kumar, Chandak Rajeev, Development of self compacting concrete by use of Portland cement, limestone filler and silica fume, Journal of Engineering Sciences, 1 (2012) 35-39

The materials used in this study is much stiffer and stronger than traditional porcelain used in dental crowns - hence, the argument that radial cracks initiate first in thinner coatings [7, 8] stands for certain materials, and cannot be generalised.
Bush and X-Z.Hu: International Journal of Mechanical Science.
Lawn: Journal of Materials Research.
Van der Giessen: International Journal of Solids and Structures.
Hu : Advanced Engineering Materials.

Laser melting is mainly used to strengthen the metal materials and parts surface, to improve there surface hardness, so that part surface with good wear resistance, high toughness, high fatigue strength etc.
Experimental method Experimental Materials.
Acknowledgement The support of the High energy beam processing center, School of Materials Science and Engineering, Liaoning Technical University is acknowledged.
References [1] Yali Gao, Cunshan Wang abd Hongbin Liu:Chinese Journal of Lasers Vol. 34(2007), p. 1019-1020,in Chinese
[2] James, W.Sears, B.Han:Chinese Journal of Lasers Vol. 36(2009), p. 159-164

However, the deflection of the left part of the tool can be given by mechanics of materials.
The mechanical and physical properties of cutter material WC-Co and workpiece material Ti6Al4V are shown in table 1.The Johnson-Cook constitutive equation damage law are employed, which can be defined by Eq. 1 and E.2
Acknowledgments This work is supported by the Major Program of National Natural Science Foundation of China (Grant No. 50935003).
References [1] M.T.Zaman, A.S.Kumar, M.Rahman, et al: International Journal of Machine Tools & Manufact- ure Vol. 46 (2006), p. 353 [2] S.M.Wang, Z.S.Chiang, D.F.
Chen, et al: Advanced Materials Research Vol. 83-86(2009), p. 680 [3] S.L.Soo, D.K.Aspinwall and R.Cdewes: Journal of Materials Processing Technology Vol. 150 (2004), p. 116