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Among various kinds of wide bandgap semiconductors, silicon carbide (SiC) attracts attention as material for power devices because of its high thermal capability.
Firstly, the lack of significant diffusion of dopants in SiC materials prevents the use of the Si DMOSFET process.
Tsuruta, “4H-SiC Trench MOSFET with Ultra-Low On-Resistance by using Miniaturization Technology”, Material Science Forum, vol.924, pp.707–710, 2018, doi: 10.4028/www.scientific.net/MSF.924.707
Yamakawa, “Demonstration of SiC-MOSFET Embedding Schottky Barrier Diode for Inactivation of Parasitic Body Diode”, Material Science Forum, vol.897, pp.477–482, 2017, doi: 10.4028/www.scientific.net/MSF.897.477
Iwamuro, “Investigation of Short-circuit Failure Mechanisms of SiC MOSFETs by varying DC bus voltage,” Japanese Journal of Applied Physics, vol.57, 0740102-1~10, 2018, doi: 10.7567/JJAP.57.074102

The scope of the evaluation including site planning, energy and atmosphere, water saving, materials and resources, the indoor air quality and technology innovation.
This is the first evaluation system about the ecological housing in China, and it is formed by five sub- projects: the planning and design about the residential, energy and environment, the indoor environment quality, the water environmental in residential, materials and resources.
At the same time, the technology innovation and promotion level, and the energy-saving materials promotion level in the market play an important role to evaluate whether the energy-saving technology which used is feasible or not in the construction of towns and villages housing.
Journal of Anhui Agriculture Science.
Forum Vol. 5 (2009), p. 3336-3337（In Chinese） [4] Weiying Zhang: Game Theory and Information Economics Journal of Anhui Agriculture Science (Shanghai People's Publishing House, China 1997)

It is mainly made of A light grey wall plates, with part of glass wall, making a contract of solid and transparent material.
The material is the same with the building.
Acknowledgements This work was financially supported by Science Foundation from China Ministry of Science (2003AA6011002).
International Journal of Limnology, 2013, 49:51–63 [12] Zhen Wen, Li Chaoxiong.
Journal of Water Resources and Architectural Engineering, 2012, 10(3): 96-100 ( In Chinese)

X-ray fluorescence spectroscopy (XRF) was used to determine the composition of raw materials and final sintered filter body.
So the green body contains combustibles and other raw materials.
The particle sizes of combustible materials determine the effective pore size of final ceramic filter [2].
Results and Discussion The compositions of three different raw materials were identified by using XRF and are shown in Table 1.
Table 1: Chemical composition of raw materials.

A rising of the material thickness in the outer areas of a circular sheet metal blank is enabled by preventing the lateral material flow.
The displaced material is flowing laterally.
The material is plasticised up to a larger strain and more material is displaced into the mould.
References [1] Allwood, J.M., Cullen, J.M., Sustainable Materials – With Both Eyes Open, Uit Cambridge Ltd., 2011, ISBN 9781906860059
[5] Han, X., Hua, L., Comparison between cold rotary forging and conventional forging, Journal of Mechanical Science and Technology 23 (2009) 2668-2678

The researach performed within the scope of this topic involved a large number of experiments, including tensile and bending tests, hardness and toughness, as well as metallography and fractography tests, in order to determine the mechanical properties of the materials and the welded joints in detail, along with their microstructures and their influence on the obtained test results.
These values correspond to the parent material, since fracture occurred in it (as expected).
While ANSYS offers numerous benefits in terms of fatigue crack growth simulation, it does not have the ability to allow crack growth through different materials (both in terms of mechanical properties and Paris coefficients), thus it was necessary to come up with an alternative way of achieving this goal.
Acknowledgement The authors of this paper would like to thank the Ministry for Education, Science and Technological Development of Republic of Serbia for its support of project TR 35040.
Božič, Numerical determination of Paris law constants for carbon steel using a two-scale model, Journal of Physics Conference Series 843

Sensor is made of hard aluminum alloy material, on the one hand because of its good elasticity, on the other hand, because of its high strength, not easily deformed.
Select structural entity element --Solid185 as element type; material properties: bearing material: Q235, linear and isotropic, so the definition of the elastic modulus E = 210GPa, Poisson's ratio μ = 0.3, density ρ = 7800g/cm3 ; the sensor material: the hard alloy, so the definition of the elastic modulus E = 70GPa, Poisson's ratio μ = 0.3, density ρ = 2700g/cm3.
Acknowledgments This work was supported by National Natural Science Foundation of China (NSFC) (Grants: 51075292).
Sun: Journal of taiyuan university of technology, Vol.40(2009) No.5,p.461.

Assuming that the material is linear elastic, do not involve the nonlinear characteristic in using the little deflection theory.
Prestressed modal analysis The spindle component is composed with spindle, bearing, and pulley .The material property of parts can be seen in Table.2.Model and simplify the spindle component before finite element analysis, the internal transmission parts of the spindle frame is not fully embodied in finite element model, only considering their distribution quality, the quality approximately added on the thickness of the spindle or the spindle frame, ignore the factors which have little influence in the structure dynamic characteristics and in quality, such as the little holes, notching, and small convex platform.
Table.2.Material property Parts Material Young's modulus(Pa) Poisson's ratio Density (kg m^-3) Inner Bearing steel 2.07 x e11 0.29 7810 Outer Bearing steel 2.07 x e11 0.29 7810 Ball 3.10 x e11 0.26 3200 Spindle Structural steel 2.00 x e11 0.3 7850 Pulleys Structural steel 2.00 x e11 0.3 7850 According to the size of the parts to model 3D parameterized modeling, import the model into the software workbench 12 which could compartmentalize grid and generate contact automatically.
Acknowledgements This work was financially supported by National Science & Technology Specific Program (2010ZX04001) References [1] G.D, Hagiuetal.
[4] Yuansen Xie, Yimin Li, Ning Zhong: journal of noise and vibration control.

Research of Experiment Platform for Drilling Hydraulic Mining of Oil Shale Yongbai SHA1, a, Xiaoying ZHAO2,b，Liangfei LI3,c,Yan HE1,d 1College of Mechanical Science and Engineering, Jilin University, Changchun Jilin 130025, China 2Changchun College of vocation and technology, Changchun Jilin, China 3 Transportation warehousing Department, PetroChina Jilin Petrochemical Company, Jilin, China ashayb@jlu.edu.cn, b1048339146@qq.com, c jh-lilf@sohu.com, d382498891@qq.com Keywords： Oil shale; Drilling hydraulic mining; Experimental platform; Finite element analysis Abstract: Aimed at a new mining method of oil shale—Borehole Hydraulic Mining, the experiment platform for Borehole Hydraulic mining of oil shale is designed based on this, in order to evaluation of the effective damage to oil shale in different forms of jet, determine the economic and reasonable high-pressure jet parameters.
Considering the uneven of rock surface, the platen contacting with rock directly uses double layer materials- rubber plate and sheet steel, and they are connected with driving device through connecting sleeve and etc.
Fig.5 Stress of the upper plate Fig.6 Stress of the pressing plate The stress of the upper plate is shown as figure 5, from which it can be concluded that the annular region stress being the largest (171MPa), while the allowable stress of upper plate material is [s]=180MPa>171MPa, so the design meets the requirements.
It can be concluded that the stress on the red zone of connecting sleeve is the largest (166.9MPa), while the allowable stress of the material is [s]=180MPa>166.9MPa, so the design meets the requirements.
International Journal of Coal Geology 81 (2010).

The PVC material has the characteristics of convenient processing, lower costs, so it was chose to design and process the fixed diaphragms, the outside cover, the boss flanges and the fiber supports which are all well for function.
The housed material would change the transmission properties by absorbing parts of the structural strain.
The detecting deformation tube should be embedded suitably to avoid wasting materials due to crowd or arising blind sparse spots.
Journal of Engineering Geology, Vol.135-142 (2008), p.1
[4] Wang Shaoli: Application Study of Distributed Optical Fiber Sensing Technology on Deformation Monitoring for Earth Embankment Dams (Hunan Univ. of Science and Technology, China 2009)