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Kawashima: Journal of Materials Processing Technology, Vols. 143-144 (2003), p. 682-686 [3] A.M.
Khatri: Journal of Materials Processing Technology, Vol. 190 (2007), p. 282-290 [4] M.
Komanduri: Journal of Manufacturing Science and Engineering , Vol. 119 (1997), p. 520-528 [5] S.H.
Yuan: Key Engineering Materials, Vols. 304-305 (2006), p. 113-117 [8] S.M.
Chen: Key Engineering Materials, Vol. 416 (2009), p. 583-587 [9] H.B.

Finite element analysis of stress intensity factors in the cracking of brittle materials under biaxial loading H.
Jour. of Key Engineering Materials, Vol. 465, 123-128, publication, (2011)
Kachanov; “Interaction of a crack with a field of micro-cracks”, International Journal of Engineering Sciences, Vol. 21, pp. 1009-1018, (1983)
Chabaat; “Crack in brittle material at presence of a dislocation”, Advanced Materials Research, Vol. 921, pp. 2043-2047, (2014)
Chabaat; Stress field and energy analysis during the fracture of Composite materials, Journal of Applied Mechanics and Materials. pp 524 (2014)

Modern material science has been up to an unprecedented level.
Besides, modern material science keeps providing new materials for us.
• Touch properties of materials Touch properties of materials, another main sensation for people to experience materials, perceive touch properties of materials by touching materials with people’s hands or skins.
Touch textures of materials are bound up with expression ways of materials’ surface structures.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY, Jan. 2010(Vol. 32 (No.1) [4] X.

The paper presents the research work carried out in order to determine the optimum assessment process in the case of an introductory engineering course, Technology of Materials.
Results and Discussion Table 1 presents the final academic grades of students enrolled in the last six academic years in the course Technology of Materials.
Posts contain supplemental information about the specific field of materials processing.
Conclusion Present paper presents a research work on improving the assessment methodology in the case of an introductory engineering course, Technology of Materials.
Strnad, The use of blogs and social media for technical education in specific field of materials processing, Procedia Economics and Finance. 3 (2012) 337–342.

Effects of surface density on the material It can be seen from Figure 2, in the case of the same thickness, in a low-frequency sound, the absorption curves of the three materials are almost coincidence, indicating that the absorption capacity of the three kinds of materials to low-frequency sound waves is basically the same and in the low-frequency sound absorption sequel is poorer, which is consistent with the law that the absorption of porous materials to low-frequency sound is poor, and justify the effect of changing the size of material surface bulk density on low-frequency sound absorption performance is not obvious.
From the above analysis we can see, increase in material density can increase the absorption properties of materials, but its effect on low frequency sound absorption is not obvious, it can primarily improve the absorption capacity of materials in the section of high-frequency sound.
Such as: this article only conducts three kinds of combinations of different density material, in the future we can combine with more different materials of different density in different ways, in order to identify the best combination ratio.
References [1] Pele C E, Nonwovens Make Themselves at Home, NonwovensIndustry,2000,(2),3 [2] Youn Eung Lee and Chang Whan Joo, Sound Absorption Properties Of Recycled Polyester Fibrous Assembly Absorbers, AUTEX Research Journal,3(2), 2003 [3] T.
Adachi, The Development Of Sound Absorbing Materials Using Natural Bamboo Fibers, High Performance Structure And Composites Book, WIT Press 2002 [4] Kannan Allampalayam Jayaraman，Acoustical Absorptive Properties of Nonwovens，A thesis submitted to The Graduate Faculty of North Carolina State University in partial fulfillment of the requirements for the Degree of Master of Science，2005 [5] Kyoichi Watanabe, Yoshiaki Minemura, Kouichi Nemoto and Hiroshi Sugawara, Development Of High Performance All Polyester Sound Absorbing Materials, JSAE Review 20, 1999, 357--362显示对应的拉丁字符的拼音   字典 1.

Introduction Since the beginning of the 1980s, NiTi alloy has been investigated as an implant material.
Acknowledgements The work is supported by the 2011 Innovation award of postgraduate of Heilongjiang province, National Natural Science Foundation of Heilongjiang province through Grant YJSCX2011-232HLJ, the Natural Science fund of Heilongjiang province(under grant A2007-09), and the program of Department of Education of Heilongjiang Province (under grant 11531277).
Journal of Biomedical Materials ResearchVolume 51, Issue 4, pages 685–693,15 September 2000 [2] M.
Materials Characterization Volume 27, Issue 3, October 1991, Pages 133–140 [3] T EliadesZZZ, G EliadesZZ [M]European Journal of OrthodonticsVolume 22, Issue 3Pp. 317-326 [4] H.C Ma[M]Scripta Materialia,Volume 45, Issue 12, 17 December 2001, Pages 1447–1453 [5] Christine Trepanier, [J].
Journal of Biomedical Materials Research,Volume 48, Issue 1, pages 96–98,1999 [6] S.

Activation energy of pure and impregnated lignocellulosic materials obtained by isothermal method Chrebet Tomas1,a, Martinka Jozef2,b Balog Karol3,c and Turnova Zuzana 4,d 1,2,3,4 Institute of Safety and Enfironmental Engineering, Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Paulinska 16, 91724 Trnava, Slovak Republic atomas.chrebet@stuba.sk, bjozef.martinka@stuba.sk, ckarol.balog@stuba.sk, dzuzana.turnova@stuba.sk Keywords: activation energy, lignocellulosic materials, isothermal method, fire retardants Abstract.
Degradation of lignocellulosic materials was performed at various temperatures and various air-flow speeds.
Used materials We selected a sample of spruce wood as the currently used material for constructions.
Balog: Study of flaming and nonflaming combustion process of cellulosic materials.
Nishimoto: Thermogravimetry of wood treated with water-insoluble retardants and a proposal for development of wood materials.

One of those alternative materials is natural materials including bamboo.
Construction and Building Materials, 249
Construction and Building Materials, 309
Construction and Building Materials, 229
Journal of Tropical Forest Science, 19, 6-12

Preparation of the tester on friction materials The knitted friction raw materials for the research were provided by Guiyang TianLong friction materials Ltd.
Co. according to the method of literature [4], raw materials were knitted as 10mm thick of ribbon materials on W-1 knitter.
Zhou: Journal of Guizhou University of Technology (Natural Science Edition)Vol. 8(2005), p.10-12 312-315, In Chinese [3] WANG Man-li, ZHOU Yuan-kang: FINE CHEMICAL.
Vol.21(2004), No.6:477-480, In Chinese [4] LI Yi: Journal of Guizhou University of Technology (Natural Science Edition).
Vol.8(2006),p. 62-63. , In Chinese [6] RAN Song-lin: Journal of Earth Science and EnivronmentalVol.12 (2008),p. 30.

Damping energy dissipation coefficients J for materials are obtained.
Damping of materials and members in structural mechanics.
Journal of Materials Science,1993, 28: 2395-2404 [6] I.
Sichuan Building Science. 2004, 30(2):10-12 [10] Guojun Ke, Changqing Guo.
Journal of Building Materials.2004, 7(1):35-40