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Introduction Cr-doped SnO2 nanoparticles have been studied due to two main applications: catalyst materials [1-3] and ceramic pigments [4-8].
Azelee, Evolution of microstructure during the thermal activation of chromium-promoted tin(IV) oxide catalysts: An FT-IR, FT-Raman, XRD, TEM, and XANES/EXAFS study, Chemistry of Materials 11 (4) (1999) 896-909
Monros, Study of Cr-SnO2 ceramic pigment and of Ti/Sn ratio on formation and coloration of these materials, Journal of the European Ceramic Society 27 (1) (2007) 215-221
Yang, XPS investigation of segregation of sb in SnO2 powders, Journal of Wuhan University of Technology-Materials Science Edition 23 (1) (2008) 95-99
Nowotny, INTERFACE DEFECT CHEMISTRY OF OXIDE CERAMIC MATERIALS - UNRESOLVED PROBLEMS, Solid State Ionics 49 (1991) 119-128

There are still special effects on the process of the percolation in relation to sediment material in muddy water.
Science in China (Series E: Technological Sciences), 2006, 36(9): 1029－1036
School of Environmental Science and Engineering Shanghai Jiao Tong University, 2008
[4] YI Fu,HU Xue-tao.Research of the rule of the muddy water infiltration on the permeability of the mine tailings[J].Journal of Guangxi University:Nat Sci Ed,2012,37(2):224-228
[5] WANG Quan-jiu,SHAO Ming-an,WANG Zhi-rong,etc.Application of Green-Ampt equation during infiltration in layered soil[J].Journal of Soil Erosion and Soil and Water Conservation, 1999,5(4):66-70

The machining of glass fiber-epoxy composite materials is not the same as the machining of conventional metal materials.
Namgung, "Machinability carbon-fiber-epoxy composite materials in turning", J. of Materials Processing Technology, 32, pp. 553-570 (1992)
Materials Processing Technology 118(1-3) pp. 377-384 (2001)
Chang, "Turning of glass fiber reinforced plastics materials with chamfered main cutting carbide tools ", Journal of Materials Processing Technology, vol. 180, pp. 117-129, (2006). [16] P.S.
Dow," Overview of composite materials, Analysis and Design", in Engineered Materials handbook, vol. 1, (Metals park, OH: American Society for Metals, 1987, pp. 175-180 [23] C.C.

Journal of geotechnical and geoenvironmental engineering (c) asce / 8 (2006), 1085-1090
Sichuan Building Science (In Chinese). 36 (2010),101-108
Journal of southern institute of metallurgy 24 (2003),1 -6
Journal of geotechnical and geoenvironmental engineering (c) asce / 8 (2006 ),1071-1081
(In Chinese).Beijing: Science press，2000,PP47-67.

These hybrid materials can unravel some problems in the industrial sector, particularly in aerospace, and advanced automotive industry.
Materials and Methods Materials.
Langb: Analysis of the hydromechanical deep drawing of cylindrical cups, Journal of Materials Processing Technology 103 (2000) 367–373
Zampaloni, Farhang Pourboghrat: Wrinkling control in aluminum sheet hydroforming, International Journal of Mechanical Sciences 47 (2005) 333–358
Rout: Finite element analysis of sheet Hydromechanical forming of circular cup, journal of materials processing technology 209 (2009)1445–1453, doi: 10.1016/j.jmatprotec.2008.03.070

Bisphenol-A diglycidyl ether type epoxy resin cured with ethylenediamine (DGEBA/EDA epoxy resin) is a kind of thermosetting resins which is widely used in composite materials industry.
Experimental Materials.
So it’s an effective method for the depolymerization of thermosetting epoxy resin on the composite materials.
Journal of East China University of Science and Technology (Natural Science Edition).
The Chinese Journal of Process Engineering.

The diameter of the penstock is 12.4 m and HD is 1730 m2. 16 MnR steel is used as steel liner materials.
Material parameters are shown in table 1.
Table1 Material parameters Material name Density (kN/m3) Elasticity Modulus (GPa) Poisson’ ratio Designed tensile strength (MPa) Designed compressive strength (MPa) C25 25 28 0.167 1.3 12.5 C20 24 25.5 0.167 1.1 10 C15 24 22 0.167 0.9 7.5 16MnR 78.5 206 0.3 300 300 Ⅱgrade reinforcement 78.5 205 0.3 310 310 cushion materials 200 0.001 0.3 9.4 — In combination with the inclined straight cross-section in the middle of penstock near the 82.00 meters platform, the numerical calculation model is established with the length of 0.1m along the flow direction.
Damage factor is introduced into concrete damage plastic model in order to describe the materials stiffness degradation when unloading.
Journal of Huazhong University of Science and Technology(Nature Science Edition), Vol. 34 ,No.4, p. 99-102,2006(In Chinese) [4] Dong Yuxin, Li Yanshuo: Structure analysis of hydroelectric power engineering (Dalian University of Technology Press, Dalian 1995)

In recent years, with the development of modern science and technology, sapphire crystal has become the extremely important basic materials in modern industry, especially microelectronics and optoelectronics industry [1], it has been widely used in many areas, such as science and technology, defense and civilian industries.
Material Attribute of the parts is shown in table 1.
The material of the two parts is HT300 whose material tensile strength is 300 MPa, so the maximum stress is in the scope of the permit.
Journal of Mechanical Strength,2007,29(5):795-799
Journal of Tsinghua University(Science and Technology),2006,46(8): 1418-1421

Since the 1980s, Chinese scholars have conducted research in this area using of the stability theory of press bar in mechanics of materials to study and derived the theoretical formulas [1].
The material density is 20 kN/m3.
Beijing: Science Press[M],1988: 339~365
Journal of Tongji University, 1993,21(3)：379~386
Journal of Southwest University of Science and technology, 2007,22(3).

Nelson [27] described the solar cell as the basic building block of solar photovoltaic material.
[4]     Smith, H. and Rajendran, P. (2014), Review of the Elementary Aspect of Small Solar Powered Electric Unmanned Aerial Vehicles, Australian Journal of Basic and Applied Sciences
Journal of power and energy, Vol. 211, pp. 171-180
[24] Rajendran, P. and Smith, H. (2013), "The Development of Small Solar Powered Electric Unmanned Aerial Vehicle Systems", 4th International Conference On Mechanical & Manufacturing Engineering 2013 (ICME2013), 17-19 December 2013, Bangi, Selangor, Applied Mechanics and Materials
[28] Luque, A. and Hededus, S. (2003), Handbook of Photovoltaic Science and Engineering, John Wiley & Sons Ltd, West Sussex, UK