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The materials subject to the mechanical and physicochemical research were materials manufactured in industrial and laboratory conditions in the form of the wire rod and cast bars as well as wires of various diameters drawn from them.
The chemical compositions of the six kinds of materials have been presented in table 1.
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Introduction Metallic materials have electromagnetism characteristics and their changes in electromagnetism properties can reflect objects under test, such as type of material, geometry and quality [1-3].
Electromagnetic induction detection techniques can be used to obtain the conductivity and permeability of materials and have hence been widely used in detection of conducting materials.
Some tests will be carried out on specimens of different materials and with different cracks in the future.
Peyton, “A multi-frequency impedance analyzing instrument for eddy current testing,” Measurement Science and Technology, vol. 17, pp. 393-402, 2006
Peyton, “A planar EMT system for the detection of faults on thin metallic plates,” Measurement Science and Technology, vol. 17, pp. 2130-2135, 2006.

The LiFe0.95Bi0.05PO4/C phase exhibited superior cell performance among the materials prepared.
Chemistry of Materials, 17(20) (2005), 5085-5092
Journal of Power Sources, 148(3) (2001), 498-502
Journal of Power Sources, 189(1) (2009), 440-444
Materials Research Bulletin, 42(11) (2007), 1942-1948

International Journal of Advanced Trends in Computer Science and Engineering, 2013. 2: p. 216-218
Journal of Materials Processing Technology, 2004. 155-156: p. 1658-1661
Journal of Materials Processing Technology, 2009. 209(4): p. 1706-1716
Journal of Materials Processing Technology, 2000. 101(1–3): p. 95-103
Journal of Materials Processing Technology, 2005. 170(1-2): p. 385-391.

Therefore, SnS can be potentially used as photovoltaic materials.
The same method deposition was used for the preparation of semiconductor materials SnS and SnS2 [31].
SnS combined with some common semiconducting materials (TiO2,CdS,Si) can get the solar cell.
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The photo anode materials and the sensitizing method are expected to be applied industrially in solar cell.
After 24 h, the dye sensitized nanometer TiO2 photo anode materials for solar cell was formed.
Other properties and applications of the anode composite materials will be investigated further.
Acknowledgments The authors would like to thank National Natural Science Foundation of China (No. 20776122), Hebei Natural Science Foundation (No.
Fu: Chinese Journal of Organic Chemistry Vol. 31(2011), p. 415 [3] Y.

For homogeneous, isotropic and linear elastic materials, the eigenfunctions or higher order fields are only three ones, i.e.
However, the corresponding eigenfunctions are not available for non-homogeneous, isotropic and linear elastic materials.
Acknowledgement The research is supported by the National Natural Science Foundation of China (No.90305023).
Crack-tip singular fields in non-homogeneous materials, Journal of Applied Mechanics, Vol.61, (1994) p.738
Fracture of non-homogeneous materials, International Journal of Fracture, Vol.34, (1987) p.3

Emily et Al. [6] prepared Ni/Al energetic materials by cold pressing nano-powders, and found that nano-powders were easier to ignite than energetic materials prepared by micron-sized powders.
References [1] ZHANG X F, ZHAO X N, Research progress of multifunctional energetic structural materials, Chinese Journal of Energetic Materials. 17(2009)731-739
[4] Ji C, He Y, Wang C T, Shock-induced reaction characteristics of an Al/Ni composite processed via accumulative roll-bonding, Materials Science Forum. 879(2017)2044-2049
Enhanced reactivity of Ni-Al reactive material formed by cold spraying combined with cold-pack rolling, Journal of Alloys and Compounds. 741(2018):883-894
[8] Bacciochini A, Bourdon-Lafleur S, Poupart C, Ni-Al Nanoscale Energetic Materials: Phenomena Involved During the Manufacturing of Bulk Samples by Cold Spray, Journal of Thermal Spray Technology. 23(2014)1142-1148

The vast majority of laser printers and copiers now use these materials systems, and the underlying science is substantially mature, certainly in the context of their industrial application [6].
Grosso (Eds.), Organic Electronic Materials.
Samuel: Advanced Materials Vol. 14 (2002) p. 975-+
Leo: Advanced Materials Vol. 19 (2007) p. 3672-+
Toney: Nature Materials Vol. 5 (2006) p. 328-33

We review on the literatures gleaned from science citation index expanded (SCI-EXPANED) and Social Sciences Citation Index (SSCI) database on web of science, concerning evaluation research in E-Learning system.
Furthermore, criteria and methods utilized to evaluate E-Learning materials and systems should have specific characteristics.
The main objective of this paper is to analyze evaluation research in E-Learning system according to Science Citation Index Expanded (SCI-E) and Social Sciences Citation Index (SSCI) database from web of science.
INTERNATIONAL JOURNAL OF PROJECT MANAGEMENT, 31(1): 14-21, 2013 [8] Chiu, Hsiao-Ya; Sheng, Chieh-Chung; Chen, An-Pin.
INTERNATIONAL JOURNAL OF COMPUTATIONAL INTELLIGENCE SYSTEMS, 3(1): 28-42, 2010