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The presence of inorganic materials besides calcium and phosphate indicates that the phase in fish bones is HAp with low crystallinity [9].
Yusril, Synthesis and characterization of hydroxyapatite based on green mussel shells (Perna viridis) with calcination temperature variation using the precipitation method, International Journal of Nanoelectronics and Materials 11 (2018) 357-370
Yusuf, Optimization of the temperature synthesis of hydroxyapatite from Indonesian crab shells, International Journal of Nanoelectronics and Materials 12 (2019) 85-92
Yusuf, Effect of Ca:P concentration and calcination temperature on hydroxyapatite (HAp) powders from quail eggshell (Coturnix Coturnix), International Journal of Nanoelectronics and Materials 11 (2018) 51-58
Mukhopadhyay, Studies on processing and characterization hydroxyapatite biomaterials from different bio wastes, Journal of Minerals and Materials Characterization and Engineering 11 (2012) 55-67

In the homogeneous ductile materials these void evolution models has been compared with other experiments and consistency was shown by many authors[6-9].
For quantitative evaluation of the materials strength and damage, the effect of stress triaxiality and constraint conditions on the void nucleation, growth and coalescence must be considered.
McClintock, ASME Journal of Applied Mechanics, Vol.35, (1968), pp.363
Kikuchi, Computational Materials Science,. 16, 1999, pp.391
Geni, Key Engineering Materials Vols. 183-187, pp.625

At the same time, the exchange and adsorption capacities of cellulose materials are directly dependent on the pH of the solution.
The ability of cellulose materials to exchange of cations greatly increases with increasing carboxyl groups in the solution.
Lahr: International Journal of Composite Materials Vol. 4(2) (2014), p. 69 [6] K.
Ryb’ev: Building Materials Vol 1. (1965), p.17 [21] B.
Almeida: Construction and Building Materials Vol. 25 (2011), p. 2793

Concepts of a circular economy are becoming more important in the material science industry and therefore in the world of 3D printing concrete.
The replacement of synthetic polypropylene fibres by natural fibres can lead to more environmentally friendly 3D printed concrete materials.
A small selection of these experiments is highlighted in this conference paper. 2 MATERIALS AND METHODS 2.1 Materials For this study, a new 3DPC mixture was created, based on research done by (Le et Al,2012).
Journal of Cleaner Production 87, 414-422.
Construction and Building Materials 208, 381-393. https://doi.org/10.1016/j.conbuildmat.2019.03.021

Common metal materials were concerned about the effect of tool edge geometries on machining process in the previous research.
The J-C constitutive equation is used to describe the deformation process of metal materials under high temperature, large strain and high strain rate.
Acknowledgements The research work was supported by China Postdoctoral Science Foundation funded under Grant No. 2013M542123, Natural science foundation of Hunan Province under Grant No. 2015JJ5023.
The Influence of Cutting Corner Radius on the Cutting Process of Numerical Analysis [J].Journal of Mechanical Transmission, 2009, 02:86-87+104
International Journal of Mechanical Sciences:47 (2005) 16111628

Rosseinsky, Electrochromism: Fundamentals and Applications, VCH, Weinheim (1995). potential electrochromic materials.
Among mentioned materials, tungsten oxide (WO3) has been extensively investigated because of the optical reversibility from transparent to dark blue induced by electrochemical process, leading to potential applications in electrochromic windows, switchable devices and gas sensors [3].
Acknowledgments This work has partially been supported by the National Nanotechnology Center (NANOTEC), NSTDA, Ministry of Science and Technology, Thailand, through its program of Center of Excellence Network.
Radhakrishnan, Electrochromic materials and devices: present and future, Mater.
Sci. 254(2008) 2342-2352.Journal of Physics D Journal of Physics D Journal of Physics D

Series: Earth and Environmental Science 50 (2017) 012047 doi:10.1088/1755-1315/50/1/012047 [3] D.P.
Series: Materials Science and Engineering 142 (2016) 012007 doi:10.1088/1757-899X/142/1/012007 [4] DSTU ISO 15011-1: 2008.
Ukrainian Journal on Problems of Labor Medicine. 3-48. (2016) 30-36
The Paton Welding Journal 7 (2009) 44-49
The Paton Welding Journal 1 (2007) 2-9

However they are using chemicals and heavy materials, which will affect to environment badly.
However, they are using chemicals and heavy materials, which will affect to environment badly.
Acknowledgements This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Young Scientists (B), No. 21760178, 2009 and Tokyo Electric Power Company Research Foundation, general research grant of electricity and energy, 2009.
(CD-rom) [7] Nobuyuki Kurita, Yohji Okada, Satoshi Kodama, "Development of Lossless Magnetic Bearing and Application", 6th Korea Japan Symposium of Frontiers in Vibration Science and Technology, pp. 21-24 (2005) [8] Nobuyuki Kurita, Ken-ichi Matsuda, Yohji Okada, "Development of Loretnz force type magnetic bearing", Journal of the Japan Society of Applied Electromagnetics and Mechanics, Vol. 10, No. 3, pp. 314-319, 2002.
(In Japanese) [9] Nobuyuki Kurita, Noboru Kuroki, Yohji Okada, "Development of Loretnz force type magnetic bearing for small-sized energy storage flywheel system", Journal of the Japan Society of Applied Electromagnetics and Mechanics, Vol. 17, No. 2, pp. 227-231, 2009 (In Japanese).

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Vasilevskiy, Nguyen Hoa Hong, Simple way to make Anatase TiO films on FTO glass for promising solar cells, Materials Letters. 69 (2012) 59–62 [5] J.
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Somasundara, A novel gel polymer electrolyte based on polyacrylonitrile PAN and its application in a solar cell, Materials Research Bulletin. 37 (2002) 867-874 [8] X.J.
Advances in Materials Science and Engineering, 2014 107352 (4 pages).

But as the cutting speed increased further (higher cutting speeds), thermal softening effect is not the single factor which affected cutting force, strength of materials increased resulting in the decrease of cutting forces and the trend became slow.
International Journal of Advanced Manufacturing Technology, 2012, 58:141-151
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