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But both of them do not consider the environmental impact caused by the use of other raw materials mainly of metal.
However, it also does not consider the CO2 emissions caused by the production processes, the energy consumption of system and the use of other raw materials (mainly metals).
Journal of Refrigeration, Vol. 30 (2007) No.4, P.633 [14] S.
Andersen: Journal of Environmental Science and Technology, Vol. 44 (2010) No.19, P.7666
Wang: Journal of Engineering Thermophysics, Vol. 33 (2012) No.1, P.135 (In Chinese)

Study on the Relativity between Intrinsic Coercivity and Microstructure of the Nd-Fe-B Magnet Treated by the Optimized Aging Process Xia Ding 1, a,Xiao-li Wang 1, 3, b, Cong-hui Si 1, c, Li-na Zhao 1, d, Kai-hong Ding 2, e, Sheng-li Cui 2, f, Yong-cong Sun 2, g, Mu-sen Li 1, h* 1Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan Shandong 250061, China; 2 Yantai Shougang Magnetic materials Inc, Yantai Shandong 265500, China 3 Institute of materials, Jiangsu University of science and technology, Zhenjiang Jiangsu 212003, China ayezi0622@126.com, bhappysmile555@yeah.net, csiconghui@163.com, dlinamse@163.com,ekhding@ysm.com, fslcui@ysm.com.cn, gycsun@ysm.com.cn, hmsli@sdu.edu.cn *Corresponding author: LI Mu-sen, Professor, E-mail: msli@sdu.edu.cn Keywords: Nd-Fe-B magnet; Aging process optimization; Microstructure; Intrinsic coercivity Abstract.
Firstly, the alloy was produced by the strip casting process from standard industrial grade raw materials.
Hono, et al: Journal of Magnetism and Magnetic Materials Vol.321(2009), p.1101
Ishii: Journal of Magnetism and Magnetic Materials Vol.336(2013), p.88
Ishikawa et al: Journal of Applied Physics Vol. 97 (2005),p.053504

The work-piece was held on the plate in Materials Science Forum Vols. *** 569 the X-Y directions but allowed for Z-axis deformation.
Advances in Materials Manufacturing Science and Technology 570 Fig.4 Typical photos of the experiment Square Sheet.
With laser power equal to 300W, the Materials Science Forum Vols. *** 571 minimum of the height occurred in the range of 250W and 350W.
Advances in Materials Manufacturing Science and Technology 572 References [1] S.P.
Hennige: J. of Materials Processing Technology.

XRD showed that the nanometer materials and textile wall fabrics were a good combination.
Thus, it can be determined if the nanometer materials and textile wall fabrics have good combinations.
According to Bragg's law, it is certain that the corresponding materials of the diffraction peak 1 to 7 were TiO2.
According to Bragg's law, it means that the corresponding materials of the diffraction peak 1 to 9 are TiO2 and the corresponding materials of the diffraction valley 10 to 16 are copper sulfate.
XRD showed that the nanometer materials and textile wall fabrics were a good combination.

Moreover, the soils were considered as perfectly elasto-plastic materials with the extended von Mises failure criterion or modified Drucker-Prager failure criterion.
The parameters of various materials are listed in Table 2.
Therefore, in order to avoid this problem, the backfill is regarded as elastic material.
International Journal of Mechanic Sciences, 1962, 4 (5): 371–380
Journal of Hunan University (Natural Sciences), 2008, 35 (1): 26–30 (in Chinese)

Like other metal materials the failure of magnesium alloy component is frequently caused by fatigue, so more and more attention were paid on the fatigue properties of magnesium alloy by materials researchers and engineering designer [4,5].
Materials and Experimental Procedures The material used in the present study was hot extruded AZ31.
Kainer: Advanced Engineering Materials Vol.5 (2004), p281
Hu: Journal of Shenyang University of Technology Vol.27(2005), p253 [6] P.L.
Liu, C.Y.Wang: The Chinese Journal of Nonferrous Metals, Vol.19(2009), p223

The test materials (the same batch of continuous casting slab) were melted by a 25kg vacuum medium frequency induction furnace.
Yang: Materials Science and Engineering A, Vol. 338 (2002), p259
Kherrouba: Materials Science and Engineering A, Vol. 496 (2008), p.447
Nilsso: Materials Science and Technology, Vol. 8 (1992), p685
Wang: The Rare Earths and Alkaline Earths Physical Chemistry and Applications in Materials (Science Press, China 1995)

ADVANCE-1500 is selected as experimental materials.
[2] Turetta, A., Bruschi, S., Ghiotti, A.: Journal of Materials Processing Technology. 2006, 177(1-3): 396-400
[3] Firat, M.: Materials and Design. 2007, 28(4): 1311-1320
[4] Firat, M.: Materials and Design. 2007, 28(4): 1298-1303
[7] Liu.: Journal of Materials Engineering and Performance. 2010.

Materials and Methods 1.1.
Journal of composite materials (2005);39(7):633-646 [8] Wang B, Panigrahi S, Tabil L & Crerar W.
Materials and design (2014);64:194:202
Chinese Journal of Polymer Science 2013; 31 (3):521–29
Materials Today: Proceedings. 2021 Mar 3

Research on Quality Control Flows and Techniques of Software Project Management Yongchang Ren1,a, Deyi Jiang2,b, Tao Xing3,c, and Ping Zhu1,d 1College of Information Science and Technology, Bohai University, Jinzhou, P.R.
The results show that, through the study of quality control flows and techniques provide techniques and methods to support quality control and improve the science of quality management.
Through the research of quality control flows and techniques support techniques and methods to quality control, to improve the science of quality management.
Acknowledgment This work is supported by Innovation Team Program of Beijing Academy of Science and Technology (IG201106N), Education department of liaoning province key laboratory fund project (2008S002) and Liaoning doctoral fundation (20091034).
(In Chinese) [4] Yu FM: Journal of Weifang Educational College, Vol. 9 (2008) No.3, p.39.