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Acknowledgement The authors would like to acknowledge the support of Guangxi Key Laboratory of Manufacturing System & Advanced Manufacturing Technology (Grant No. 0842006_039_K), Guangxi Science Foundation (Grant No.0832243) and the Science Foundation of Guilin University of Electronic Technology (Grant No.Z20703).
Manabe: Materials Letters, Vol. 60 (2006), p.1866 [2] Q.F.
Zeng: International Journal of Machine Tools & Manufacture, Vol. 47(2007), p.436 [3] S.
Manabe: Journal of Materials Processing Technology, Vol. 142 (2003), p.609 [4] L.F.
Chen: Journal of Materials Processing Technology, Vol. 177(2006), p.142

On Stress Concentration Factor of Perforated Plate Filling with Different Materials Zhao Weiping1, a, Yi Cheng1,b 1China University of Mining and Technology, Beijing 100083, China aweipingzhao163@163.com, byicheng312@tom.com Keywords: Stress concentration factor, Elasticity, Compound plate, Finite element method Abstract.
Stress concentration may cause fatigue cracks and static fracture in structure components made of brittle materials.
Conclusions This paper presents a new method to calculate the stress concentration factor of composite materials. and a comparison with numerical simulations has proven the reliability of the proposed method.
Sun: Fatigue fracture properties of steel fiber reinforced concrete and engineering applications (Science Press, China 2003)
Li: Journal of China University of Mining & Technology Vol. 37, p, 450

In Vitro Cytotoxicity Study of the Nano-Hydroxyapatite/Bacterial Cellulose Nanocomposites Yanmei CHEN 1, a, Tingfei XI 2, b *, Yudong ZHENG1, c , YizaoWAN 3, d 1 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2 National Institute for the Control of Pharmaceutical and Biological Products, Beijing 100050, China 3 School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China a cym-1223@163.com, b,* xitingfei@tom.com, cmcyzheng@vip.sina.com, dyzwan@tju.edu.cn Key words: Bacterial Cellulose, Nano-hydroxyapatite, Degradation, Osteoblast, Cytotoxicity Abstract.
They introduced that nano-materials used in the field of medical science maybe possessed potential cytoxicity[12,13].
Science Vol. 310 (2005), p. 1609 [14] G.P.
Teng: Journal of Plastic Reconstructive Surgery Vol. 2 (2005), p. 228 [15] J.
Guo: Chinese Journal of Clinical Rehabilitation Vol. 9 (2005), p. 32 [16] K.M.

Advanced Materials, 2009. 21(21): p. 2233-2239. 5.
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Due to their prospective applications in chemical, electrochemical, photochemical etc, CuO nanoparticles based materials have been hugely investigated by many researcher [1-3].
The micrograph was analyzed by image processing software to determine identify the elemental composition of materials which is Energy-dispersive X-ray spectroscopy (EDAX).
[7] Park B.K., Sunho J., Dongjo K., Jooho M., Soonkwon L., Jang S.K., Synthesis and size control of monodispersecopper nanoparticles by polyol method, Journal of Colloid and Interface Science 311 (2007) 417-424
[11] Jeyaraman R., Kadarkaraithangam J., Arumugam M., Govindasamy R., Abdul A.R., Synthesis and antimicrobial activity of copper nanoparticles, Materials Letters 71 (2012) 114-116
[13] Hutter E., Fendler J.H., Exploitation of Localized Surface Plasmon Resonance, Advanced Materials 16(19) (2004) 1685-1706.

Materials and Methods Li7La3Zr2-xSnxO12 (x = 0.00, 0.50, 1.00, 1.50 and 1.00) samples were synthesized by using biopolymer sol gel method.
All the materials were weighed according to their stoichiometric ratio.
Materials Research Bulletin (2012)
Advanced Materials Research, Vol 795 (2013) pp 479-482
Journal of Materials Science: Materials in Electronics (2019).

It is the most used primary material since ancient times in various fields such as pottery and building materials.
Tire-derived aggregates have been used in civil engineering, as fill materials [10-13], material to collect landfill water [14, 15], retaining wall fill material [16-18], and bridge abutment material[19].
Materials and Methods 2.1.
Li, Mechanical properties of scrap tire crumbs-clayey soil mixtures determined by laboratory tests, Advances in Materials Science and Engineering, 2018 (2018)
Pacheco, Experimental study of the mechanical effect of a clayey soil by adding rubber powder for geotechnical applications, in: IOP Conference Series: Materials Science and Engineering, IOP Publishing, 2020, pp. 012057

Gilman: Journal of Applied Polymer Science Vol. 87 (2003), p.1329-1338
[5] Yusrina Mat Daud, Hussin Kamarudin, Che Mohd Ruzaidi, Azlin Fazlina Osman: Key Engineering Materials Vols. 594 (2014), p. 671-675
Dubois: Materials Science and Engineering: R: Reports Vol 28 (1-2) (2000), p. 1-63
Moet: Journal of Materials Science Vol 31 (13) (1996), p. 3589-3596
[10] Yusrina Mat Daud, Hussin Kamarudin, Che Mohd Ruzaidi, Azlin Fazlina Osman: Materials Science Forum Vols. 803 (2015), p. 58-62.

Usually, raw materials are abundant and readily available) [3].
Sun et al., “Effect of Sc and Zr additions on microstructures and corrosion behavior of Al-Cu-Mg-Sc-Zr alloys,” Journal of Materials Science and Technology, vol. 33, no. 9, pp. 1015–1022, 2017, doi: 10.1016/j.jmst.2016.12.003
Roy, “Behavior of Biomedical Materials Mechanical , corrosion and biocompatibility behaviour of Mg-3Zn-HA biodegradable composites for orthopaedic fi xture accessories,” Journal of the Mechanical Behavior of Biomedical Materials, vol. 78, no.
Chai, “Microstructure , mechanical property , bio-corrosion and cytotoxicity evaluations of Mg / HA composites,” Materials Science & Engineering C, vol. 30, no. 6, pp. 827–832, 2010, doi: 10.1016/j.msec.2010.03.016
Soni, “Cast iron deterioration with time in various aqueous salt solutions,” Bulletin of Materials Science, vol. 25, no. 1, pp. 53–58, 2002, doi: 10.1007/BF02704595

Komori: International Journal of Mechanical Sciences, Vol. 47 (2005) No.12, pp.1838-1853
Bartnicki: Journal of Materials Processing Technology, Vol. 177 (2006) No.1-3, pp.167-170
Komori and K.Mizuno: Journal of Materials Processing Technology, Vol. 209 (2009) No.11-12, pp.4994-5001
Pan: Journal of University of Science and Technology Beijing, Vol. 29, (2007) No.3, pp.315-319.
Wang: Journal of Materials Processing Technology, Vol. 187-188 (2007), pp.373-377.