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Therefore, the first left-handed materials come out to human being [2].
In 2003, the founding of left-handed materials has been selected as one of the “ten key” scientific breakthrough by American <<Science>> magazine, which triggered worldwide research on this new artificial material.
With development of the research, the left-handed materials expanded to the multi-functional materials called metamaterials [3].
That’s to say, metamaterials, which are the new artificial materials that are not found in nature, can control the path of electromagnetic wave’s transmission.
Willis: New Journal of Physics, Vol. 8(2006), p.248.

Materials and Methods Materials and Experiment Design.
Yang: Journal of Zhejiang University Science B, Vol. 9 (2008), No. 3, p. 210
Zha: Journal of Subtropical Resources and Environment, Vol. 4 (2009), No. 1, p. 32 (In Chinese)
Ping: Journal of Hazardous Materials, Vol. 163 (2009), No. 1, p. 32
MA Lena: Chinese Science Bulletin, Vol. 50 (2005), No. 1, p. 33

Sci. & Tech., Linyuan Road No.4, Xiangfang District, Harbin, Heilongjiang, China. 2The College of Material Science & Engineering, Harbin Univ.
Preparation of composite materials Technological process of composite material was described as follows.
Journal of Applied Polymer Science, 2008, 108, 1629-1635
Journal of Materials Science. 2005, 40: 1079-1085
Study on preparation of SiO2/epoxy resin hybrid materials by means of sol-gel [J].

The development of new technologies for processing aluminum and its alloys, increasing its resistance to dynamic effects and radiation is a strategic direction in materials science.
Variation of powder compositions under dynamic loading provides dynamic alloying of the matrix material with the necessary materials.
Chen, Physical mechanism of super-deep penetration of solid microparticles into solid targets, Journal of the Mechanical Behavior of Materials.23(2014) 21-27
Yazdani, Composite Materials for Steel Cutting and Concrete Crushing, Procedia Engineering. 172 (2017) 1198-1203
Irtisheva, Manufacture of products from boron-containing materials by the method of combined static-pulse compaction, IOP Conference Series: Materials Science and Engineering. 558 (1) (2019) 0120027

Ahmed Murat [3] studied the effects of cutting speed, feed rate, tool path and depth of cut process parameters on the surface roughness in the pocket machining of AA5083 aluminum alloy materials used Taguchi method.
Arab Journal of Science and Engineering. 38:705–714(2013)
V et al. : Application of response surface methodology in describing the performance of coated carbide tools when turning AISI 1045 steel, Journal of Materials Processing Technology, vol. 145(1): 46–58(2004)
Journal of Industrial Technology. 17(2): 1–8(2001)
Wiley-Inter science, Hoboken. (2007) ISBN 978-0- 470-05357-7

Introduction Concrete is one of the most widely used building materials in the world.
Materials and Test Program 1.1 Materials Cement used in this investigation is P.O52.5R, which has 28-day strength of 54.4 MPa, obtained from one source.
[3] Haijie Zhang, Guojun Ke, Hongtao Yue.Durability of fly ash concrete [J], Science and Technology of Overseas Building Materials, 2006 Vol 27 No. 1:29-34
AC I Materials Journal, 1997, 94 (6):565-576
Journal of Shenyang University (Natural Science, March 2009, Volume 25 No. 2:312 -315

Journal of Material Processing Technology, 213 (2013) 791-800
Journal of Material Processing Technology, 240 (2017) 12-22
Progress in Materials Science, 92 (2018) 112-224
Klimova, High-speed direct laser deposition: technology, equipment and materials, IOP Conference Series: Materials Science and Engineering Current Problems and Solutions, 125 (2016) 012009
Journal of Materials Processing Technology, 254 (2018) 361-372.

Using powder metallurgy to prepare nano/micron hybrid SiC particle reinforced Aluminum matrix composites, There will be defects such as loose and void between the matrix of composite materials and between the matrix and reinforced particles, and uneven distribution of reinforcement in the matrix [4, 5].
Acknowledgments This work was financially supported by the Natural Science Foundation of China (grant number 51501167), and Henan Province Science and Technology Research Project (grant number 162102210064).
Journal of King Saud University - Engineering Sciences, 2015, 29(3)
Universal Journal of Mechanical Engineering, 2015, 3(4): 142-146
Journal of Materials Engineering, 2017, 45(8): 62-67

Journal of Building Materials, 2002, 5 (1)
Journal of Shandong University, 2003, 33 (2)
Journal of Engineering Mechanics, 2009, 26 (8)
Numerical Model of Heat and Water Transport Coupled Research Soil Science, 2001, 32 (4)
[8] Liuwei Fan Aiwu, Huang Xiaoming Porous Media Theory and Application of Heat Transfer, Beijing: Science Press, 2006.

Resource is one of the basic materials of economic development and resource shortages will directly affect economic growth and social progress.
Journal of Political Economy, 1990, 98(5): 71- 102
Journal of Monetary Economics,1988, 22 (1): 3- 42
[8] Ziarko W..A variable precision rough set model[J].Journal of Computer and System Sciences,1993.46:39-59
International Journal of Information and Computer Science,1982, 11(5):341-356