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Refractive index is the important parameter for the transparent materials and largely depended on the density or specific gravity of the material.
At present, the local glass industry depends on the import of some raw materials.
Sirikulrat: KMITL Science Journal, Vol. 6 (2006), p. 541
Dararutana et al.: Advanced Materials Research, Vol. 39-40 (2008), p. 257
Hua et al.: Journal of Sol-Gel Science and Technology, Vol. 33 (2005), p. 169

Assessment of Materials and Operational Imperfections in Rotating Machinery Jan Kiciński The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences, Fiszera 14, 80-952 Gdańsk, Poland, e-mail: kic@imp.gda.pl Keywords: rotor dynamics, nonlinear vibrations, crack assessment, oil whirl and oil whip Abstract.
Presented have been the methods of modelling of the selected materials and operational imperfections (defects) like rotor cracks and hydrodynamic instability in rotating machines.
Crack as materials imperfections Issues of early detection of material and construction imperfections in rotating machines have been the merit of numerous publications for several years now [1÷10].
Kim: Journal of Sound and Vibration (2000) 238, p. 617 [10] A.
Materny: Journal of Sound & Vibration (1997) 206, p. 523 [14] J.

The safety analysis for underground tunnel of civil engineering by the stress and deformation of rock mass material Xionggang Xie1, a, Zhaoyang Yu1,b and Zebiao Jiang1,c 1 Mining college, Guizhou University, Guiyang 550025, China a xiexionggang2011@126.com, b zhaoyyugz@hotmail.com, cjiangzbgzu@gmail.com Keywords: tunnel; safety degree; underground; rock material response;civil engineering Abstract.
Acknowledgements This work was financially supported by the Key Project fro Education Department of Guizhou Province Natural Science(2011034); Introduction of Talent Research Fund of Guizhou University (2010002).
Procedia Earth and Planetary Science, 1(2009)1242-1246
International Journal of Rock Mechanics and Mining Sciences, 64(2009) 665-673
International Journal of Rock Mechanics and Mining Sciences, 36(1999) 777-809

Materials and Methods All materials were used as received from the source.
All materials are calcined in an oven at 600 oC.
Francesca, Current and Future Nanotech Applications in the Oil Industry, American Journal of Applied Sciences 9, 6 (2012) 784-793
Series: Materials Science and Engineering 454 (2018) 012162
Venkatesh, On the Nature of Ferrite Nanoparticles, International Journal for Research in Applied Science & Engineering Technology (IJRASET), 3 Issue IV (2015)

Hemdi, Critical success factors of green design implementation for malaysia automotive industry, Advanced Materials Research Vols. 383-390 (2012) pp 3395-3402
Mohamad Zailani, Going green in supply chain towards environmental sustainability, Global Journal of Environmental Research 3 (3) (2009) 246-251
Fadzil, Public Community knowledge on reuse of end-of-life vehicles: a case study in an automotive industrial city in Malaysia, Journal of Applied Sciences 14 (3) (2014) 212-220
Azhari, Initiating automotive component reuse in Malaysia, Journal of Cleaner Production 17 (2009) 1572–1579
Journal of Applied Science 13 (5) (2013) 654-662

The use of natural materials for constructions, such as wood, makes it possible to respond to sustainability issues.
Introduction Wood is one of the oldest building materials that have been used by man and still plays a leading role in the construction world.
Many studies are moving in this direction, also in order to lenghten the life cycle of the materials used in the construction processes [4].
Koh: Implementation of a real option in a sustainable supply chain: an empirical study of alkaline battery recycling, International Journal of Systems Science, Vol. 45(6) (2014), p. 1268-1282
Journal of Cleaner Production, Vol. 182 (2018), p. 805-817 [9] S.

Metallurgical alumina and quartz sand are considered as carrier materials.
Methods and Materials There are many methods for the synthesis of akaganeit [15-17].
Chandrasekaran, Optimization, structural, spectroscopic and magnetic studies on stable akaganeite nanoparticles via co-precipitation method, American Journal of Materials Science. 1(1) (2011) 18-25
A critical review, Journal of Hazardous Materials. 142 (2007) 1-53
Starkov, Sorption removal of fluorine ions, incoming with the recycling zinc-bearing materials, International Conference with Elements of School for Young Scientists on Recycling and Utilization of Technogenic Formations, KnE Materials Science. (2017) 121-126

And the recycling of asphalt mixture, can save a lot of asphalt , aggregate materials and the project investment, and has remarkable economic benefits and social environmental benefits, known as the "green" construction technology.
Materials Through testing, the basic indicators of cement, lime and fly ash are shown in Table 1, Table 2 and Table 3.
Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering [S].
Journal of Xi’an Highway University, 2003, 23(3): 37-42
China Journal of Highway and Transport, 2006,19(2): 31-35

Introduction The way for nursing staffs to protect the safety of patients to the greatest extent and to reduce risks to the minimum ask for the sufficient use of science and technology.
Journal of Clinical Nursing, 2005, 4(8): 51
Journal of Nurses Training, 2011(05): 441
Chinese Journal of Nursing, 2010(08):743-744
Chinese Journal of Clinical Pharmacy, 2012(02):105-109.

The professional orientation with safety science concept was presented.
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