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Through a comparative analysis of various materials’ critical failure velocities, the optional materials for impact resistant can be got.
In such a situation, it can be inferred out that some kinds of plastic materials such as special engineering plastics have better impact resistant performance than metal materials.
[4] Johnson HE，Louca LA，Mouring SE: Current research into modelling of shock damage to large scale composite panels[J]．Journal of Materials Science, Vol.41(2006), p.1573-1590
Chinese Journal of Ship Research, Vol.3 (2008)
Chinese Journal of Applied Mechanics, Vol.26 (2009)

Introduction Fiber suspension is attracted increasingly in many science and engineering fields, such materials science, paper-making industry, composites material production and so on.
Journal of Hydrodynamics, Ser.
International Journal of Multiphase Flow, 2006, 32(12): 1354-1369
Polymer Engineering & Science, 2012, 52(10): 2147-2156
Journal of Mathematical Biology, 1998, 36(3):269-298.

Study on flue gas desulphurization gypsum plaster Miaomiao Chen1,a, Yunwei Yu2,b , Chunhua Feng1,c and Dongxu Li1,d 1State Key Laboratory of Materials-Oriented Chemical Engineering, College of Material Science and Engineering, Nanjing University of Technology, Nanjing, 210009, China 2 Suzhou much new material limited company, Suzhou, 212151, China achenmm88@sohu.com,bszmuchyyw@yahoo.cn,cfengchunhua@sohu.com,ddongxuli@njut.edu.cn Correspondent author: Dongxu LI (1956–), male, Ph.D., professor.
Due to the very low price and large availability of FGD gypsum, the material has a good potential for applications in building materials, especially as raw materials in gypsum plaster [1-3].
[3] Zhao Hai-jun, Yan Yun, Hu Zhi-hua, He Liu-hong, Study on gypsum plastering, Journal of Materials Science & Engineering. 25(2007)229-233
[7] Dalmay P, Smith A, Chotard T, et al, Properties of cellulosic fibre reinforced plaster: influence of hemp or flax fibres on the properties of set gypsum, Journal of materials science.45(2010)793-803
[8] Bai Yang, Dongxu Li, Effect of activity admixture on FGD plastering gypsum, Journal of Materials Science & Engineering. 27(2009) 447-450

Materials and Methods Sample Preparation.
M.: Journal of Biomedical Materials Research Vol. 44 (1998), p. 191-107 [13] R.
Kulik, et al.: European Cells and Materials Vol.1 (2001), p.12-17 [15] S.
Oliver, et al.: Journal of Materials Research Vol. 7 (1992), p. 613-617 [17] Rho, J.
Pharr: Journal of materials science: Materials in medicine Vol. 10 (1999), p. 485-488 [20] Y.

Laser technology is one of the most versatile techniques used in a variety of materials processing for wide range of materials.
Dutkiewicz: Texturization of multicrystalline silicon by wet chemical etching for silicon solar cells, Journal of Materials Science, Vol.40, No 6, (2004), p. 1459 - 1463
Chibani: Characterization of texture surface for solar cells, Journal of Applied Science, Vol. 10 (3) (2010), p. 231 - 234
Zięba: Laser surface treatment of multicrystalline silicon for enhancing optical properties, Journal of Materials Processing Technology, 201 (2008), p. 291 - 296
Drygała: Laser processing of multicrystalline silicon for texturization of solar cells, Journal of Materials Processing Technology, 191 (2007), p. 228 - 231

The disadvantage is no nutrients; Organic materials include peat, bark, bagasse, groundnut shell, etc[14].
Consequently, it is necessary developing the novel packing materials to improve the performance of bioreactors.
One is from polymer materials(e.g., polyurethane foam[15]), the other is from the mixture of inorganic and organic matter.
There are two ways to adjust the pH, One is insertion of pH-buffering materials, for e.g.
Comparison of organic and inorganic packing materials in the removal of ammonia gas in biofilters[J].

Material and method Materials.
Sun: Journal of Food Engineering 2001, 50, (4), 211-216
Wang, et al: Journal of Southwest Agricultural 2007, 20, (1), 35-39.
Hu: Journal of Northwest Agriculture and Forestry university of science and technology. 2006, 34, (4), 43-47.
Zhu, et al: Journal of Fruit Trees. 2007, 24 (4), 415-420

Characterization of Materials Epoxy Asphalt Binder.
"Evaluation of Low-Temperature Properties of HMA Mixtures", Journal of Transportation Engineering, Vol.128, No.6, 2002, p. 578-586
"Evaluation of Asphalt Mixture's Low-Temperature Anti-Cracking Performance by Curvature Strain Energy Method", Journal of Southeast University (Natural Science Edition), Vol.32, No.4, 2002, p. 653-655
"Low-Temperature Cracking of Polymer-Modified Asphalt", Materials and Structures, 1998, p. 58-63
"Epoxy Asphalt Concrete Paving on the Deck of Long-span Steel Bridges", Chinese Science Bulletin, Vol.48, No.21, 2003, p. 2391-2394

Common materials undergo a transverse contraction when stretched in one direction and a transverse expansion when compressed, which is called positive Poisson's ratio of material, such as Poisson's ratio of rubber is 0.475; in contrast, some materials undergo a transverse expansion when stretched in one direction and a transverse contraction when compressed, which is called negative Poisson ratio material, also called the auxetic materials, such as Poisson's ratio of yellow single crystal iron ore is -0.14.
Poisson's ratio is general in the range of -1 to 0.5 for isotropic continuous materials.
Nowadays, researchers have found and manufactured many kinds of auxetic materials, such as auxetic rock, foams, polymers, composites and so on.
Mechanics of Materials, 2011(43): 476-486. ][[] Wright JR, Burns MK, James E, et al.
The core materials were spandex filaments with three different diameters, and the wrap materials used were nylon filaments with the same count but different tensile modulus.

Critical raw materials (CRMs) are of primary importance for energy storage systems as needed for electromobility.
Securing access to a stable supply of raw materials for industrial use is a major challenge for Europe, the awareness of which has led to the third assessment of critical raw materials (CRMs) by the European Raw Materials Initiative in 2017.
Shortage in supply of CRMs would hinder economic growth in rapidly developing industrial areas such as energy storage systems (batteries), intelligent materials (e.g. shape memory and energy harvesting materials) or electromobility.
Europe possesses reasonable quantities of critical raw materials.
Journal of Colloid and Interface Science, 50(2):307-318, 1975