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Introduction Silicon carbide is one of the most promising wide band gap materials for power electronic applications.
Vincze, Materials Science and Engineering B 46 (1997) 223
Mohney, Journal of Electronic Materials 38 (2009) 563
Camassel, Materials Science Forum 556-557 (2007) 207

Materials and methods Materials Beef flavor was bought from the super market.
Meat Science.
Journal of Clinical and Experimental Medicine (In Chinese).
Meat Science.
Food Science (In Chinese).

[8] LI Jianhui, WEN Shuaifang, SUN Dan, et al.Leakage characteristics and formula construction of W-shaped elastic metal seals, Journal of Aerospace Power. 63(2023) 1-14
Finite element analysis of the O-ring squeezed into the sealing clearance based on ABAQUS, Proceedings of 2016 International Symposium on Advances in Materials Science (IAMS 2016). 2016(11047) 2129-2137
Effect of surface topography on contact property of the end face for mechanical seal, Applied Mechanics and Materials. 419(2013) 292-298
Modern thermodynamics—new concepts based on the second law of thermodynamics, Progress in Natural Science: Materials International. 19(2009) 125-135
Influence of fluid flow regime on performances of non-contacting liquid face seals, Journal of tribology. 124(2002) 515-523

Blade material 20Cr, density , elastic modulus 205GPa, Poisson's ratio 0.29.Mesh according to the rules above, considering the model of symmetry, the economics of computing and grid quality, the model was mesh-maped with three-dimensional tetrahedral units in Nastran system.The mesh with 3D units, each has 4 nodes, and each node has six degrees of freedom: dx, dy, dz, rotx, roty, rotz,which is suitable for linear, large rotation analysis.
thickness optimization Table 3.Comparison of stress optimization Design variables Initial value (m) Optimal value(m) B1 0.005 0.45031E-02 B2 0.005 0.45027E-02 B3 0.005 0.45362E-02 B4 0.005 0.54979E-02 B5 0.005 0.54979E-02 Objective function Initial value(MPa) Optimal value (MPa) Stressm1 12.9 10.9 Stressm2 7.8 8.7 Stressm3 12.2 13.6 Stressm4 13.8 16.2 Stressm5 20.5 16.8 From the optimization results, it can be seen: thickening on the part of the leaves, and thinning on some other part, so that to improve the stress distribution and rational use of materials
Journal of Environmental Engineering, 4(2000).p. 382-385 [2] Fernando Dorado, Manuel Andrés Rodrigo, and Isaac Asencio.
Proceedings of World Academy of Science, Engineering and Technology. 3,29(2008). p.272-278
Journal of Environmental Engineering. 3,(2003 ).p.402-411.

Rubber gaskets between two adjacent segments have been used as a sealant material for water in bolted precast concrete segment linings for many years[3].
The gasket material is compressed by contact pressure to prevent water leaking into the tunnel and the mechanism of segment gaskets waterproof is showed in Fig. 3.
Underground Space, Vol.22(4)( 2002): 335-338 [5] Science and technology committee of shanghai municipal construction commission.
International Journal of Analytical and Numerical Methods in Geomechanics, Vol. 25(4)( 2001): 365-390
Canadian Geotechnical Journal, Vol.38(2001):461-483.

Introduction The external prestressing structure is a kind of prestressed structure, compared to traditional prestressed structure, prestressed steel laid on structure surface, thus easy inspection and maintenance, prestress loss less，convenient construction layout[1], And Carbon Fiber Reinforced plastics (Referred to CFRP) plate is a kind of good and new type of reinforcement material, advantages of high strength, light quality, corrosion resistant, easy construction ect, which has been widely used in civil engineering in the reinforcement and reconstruction.
In the concrete, steel and CFRP plate were set up on the resistance strain measurement materials of strain.
Acknowledgments The authors would like to acknowledge the financial support of the National Science Foundation Guangxi NO.0832002Z and No.2010GXNSFB013006.
(China Architecture and Building Press,China 2005) [2] S.S.Ping,H.Peng and H.Tong:Journal of Building Structures, May.24.(2003)No.5,pp.24-30
[4] Yail,J.Kiml,Chen Shi,Mark F.Green:Journal of Composites for Construction, Dec.3(2008) No.3,pp.274-283

· this behavior is attributed to the nature of the bonding materials characteristic, which is bond the ‎mineral grains by saline together by bonding agent, such as halite, while it is highly soluble in ‎water, while others, such as gypsum and calcite are less soluble due to acute water sensitivity and chemical aggressiveness [5].
For the embankment, a coarse aggregate material was chosen to allow high drainage of the ‎foundation soils and reducing the pore pressure build-up below the embankment.
Belounar, Effect of geosynthetic on the performance of road embankment over sabkha soils in Algeria: case study, International Journal of Geosynthetics and Ground Engineering, 1(4), 2015, p.35
Mahony, Is Soil Science Relevant to Road Infrastructure” 13th International Soil Conservation Organization Conference – Brisbane, 2004
Hemalatha, Performance of geosynthetics in unpaved roads, International Journal of Geotechnical Engineering, 4(3), 2010, pp. 337-349

Low price and good snowmelt effect of chlorine deicers lead to that it becomes common method to melt snow in municipal roads of Hohhot [1] However ,on the one hand the application of chlorine deicers can quickly resolve traffic congestion and traffic safety issues brought by snowfall on the other hand it will weaken characteristic of asphalt pavement ,produce pavement disease and accelerate damage of pavement. [2] In this paper, with Hohhot political road snowmelt engineering as studying background, influence rules of chloride deicing on low temperature crack resistance of municipal asphalt concrete pavement material and adsorption properties between aggregate and asphalt will be analyzed.
Determination of the optimum conditions for de-icing salt scaling resistance of concrete by visual examination and surface scaling [J]. construction and Building Materials，2009 ( 16) 3: 1 － 8
Journal of Highway and Transportation Research and Development,2009.6(54):46-48 [4] Yan Yi-sha．Research of the influence about the performance of asphalt and asphalt mixture by sulfate [D].Xi’an: Chang’an University20wuzhemei07
Evaluation of asphalt-mixture s low-temperature anti-cracking performance by curvature strain energy method［J］Journal of Southeast University(Natural Science Edition)，2002，32( 4) : 653 － 655

., electromagnetic effects, mechanical effects and new materials.
After determining parameters of the geometry, the material and the boundary conditions of a length-limited thin-walled cylindrical shell, analytic solution and ANSYS numerical solutions are obtained to verify the above equations.
Acknowledgement It is financed by Chinese National Natural Science Foundation (50875230).
References [1] Wu Lianyuan，Xu Chang．Bending analysis of circular cylindrical shell subjected to concentrated moving loads[J]．Journal of Shanghai Jiaotong University，1989,23(5) (in Chinese) [2] Jerome T.
Journal of dynamics and control, 2010,8(4).

Discussion The flaking/low adhesion on the A brand links may have caused by the high silicon content within the substrate material, or insufficient cleaning prior to the hot dipping process, or slow cooling after being taken out of the zinc bath [9].
AGH Journal of Mining and Geoengineering, 36 (3), pp. 177-184
International Journal of Mining Science and Technology, 26(1), pp. 59-64
Steel composition: effect on coating appearance, thickness, materials handling and surface smoothness.