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At present, the type of gas sensors for semiconductor materials gas sensor can be divided into three main classes as SnO2, ZnO and Fe2O3.
But in actual applications, the gas sensitivity and selectivity of pure SnO2 gas-sensing materials is not so good [2, 3].
[2] Liujiang Xi, Dong Qing, Xincun Tang and Chunjiao Chen: Materials Chemistry and Physics, Vol. 108 (2008), p. 232
[7] Tongjiang Peng, Hongjuan Sun, Haifeng Liu et al.: Journal of Functional Materials, Vol. 39 (2008), p. 1756
Sainkar, et al.: Materials Chemistry and Physics, Vol. 84 (2004), p. 37.

(1) Where: qr is the intensity of the heat flux of laser beam at the material surface，qm is the intensity of peak heat flux of laser beam，η is heat absorption efficiency(η=20%)，P is laser beam power(P=1000w)，R is laser beam diameter (R=0.4mm) and r is distance from the center of the laser beam.
Material Properties.
The material properties parameters of Ta, Mo are respectively shown in Fig. 3(a)-(b).
Material plastic behavior is represented using the Von Mises yield criterion and the bilinear isotropic strain hardening law.
References [1] PingJie Chen, Bihua Zhan: submitted to Journal of Vacuum Electronics (1988), In Chinese [2] Changgui Wu, Xianxiu Wang: submitted to Journal of Laser Technology (1989), In Chinese [3] Kim K wanwoo, Lee Jungkil and Cho Haeyong: submitted to Journal of Mechanical Science and Technology (2010) [4] Trivedi A, Bag S and De A: submitted to Journal of Science Technology Weld Join(2007) [5] De A, DeRoy T: submitted to Journal of Science Technology Weld Join(2006) [6] Sabbaghzadeh J, Azizi M and Torkamany MJ: submitted to Journal of Optical Laser Technology(2008) [7] Fanrong Kong and Radovan Kovacevic: submitted to Journal of Materials Processing Technology (2010)

It also has nothing to do with the types of specimen materials and the experiments.
It also has nothing to do with the types of specimen materials and the experiments.
Experiment of materials mechanics.
Mechanics of materials.
Mechanics of materials.

Kwak: Journal of Membrane Science Vol. 448 (2013), p. 125 [4] D.
Hota: Journal of hazardous Materials Vol. 258-259 (2013), p. 116 [6] O.
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Materials and Test Methods 2.1 Materials.
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Materials and Methods Materials and Fabrication.
Stelling, Potential of ceramic materials as permanently implantable skeletal prostheses, Journal of Biomedical Materials Research. 4 (1970) 433-456
Journal of materials science: Materials in medicine. 14 (2003) 103-107
Kim, Macrochanneled poly (ε-caprolactone)/ hydroxyapatite scaffold by combination of bi-axial machining and lamination, Journal of Materials Science: Materials in medicine. 17 (2006) 773-778
Hench, Regeneration of trabecular bone using porous ceramics, Current Opinion in Solid State and Materials Science. 7 (2003) 301-307

The manufacture of micro-porous materials can reduce usage amount of material, lightweight material, and enhance the impact resistance, toughness, specific strength and fatigue life of the material at the same time [3,4].
At last, the foaming samples were cooled, washed and dyed, and the PPESK cellular materials was prepared[5].
Journal of Materials Research.
Journal of Functional Polymers.
Beijing University of Chemical Technology: Natural Science.

After introduced the internal damage variable in the linear constitutive equations of viscoelastic materials, the approximate equation about the changing rate of the internal damage variables and the changing rate of the hydration stress can be got.
The mineral contents of a mudstone consist of the illite material as its main mineral component and the illite semectite interstratified clay and the chlorite as the secondary material.
Journal of Petroleum Technology, 45(11): 1093-1101 [3] Zhou C.
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Ashiq, Adsorption of dyes from aqueous solutions on activated charcoal, Journal of Hazardous Materials. 139 (2007) 57–66
Reactive Black 5 in aqueous solution by electro-coagulation using sacrificial iron electrodes, Journal of Hazardous Materials. 161 (2009) 1369–1376
Rodriguez, Application of Fenton oxidation to cosmetic wastewaters treatment, Journal of Hazardous Materials. 143 (2007) 128-134
Environmental Science and Technology. 19 (1985) 1206-1213
Palit, Studies on ozone-oxidation of dye in a bubble column reactor at different pH and different oxidation-reduction potential, Journal of Environmental Science and Development. 1 (2010) 341-346

Some other simple nonlinear empirical constitutive models were coded for finite element analysis (FEA) for structural analysis of porous materials [8-10].
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