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For decreasing self-weight, high-strength light aggregate concrete is used in Stolma continuous rigid-frame bridge in Norway at 184m of main span in 1998, the material characterize of which is as same as high strength normal concrete and self-weight is lighter[3][4].
Three kinds of concrete materials are used in superstructure of the continuous rigid-frame bridge with density gradient concrete as: high-strength light aggregate concrete LC(dry apparent density≤1950kg/m3) in mid-span, high-strength normal concrete C(dry apparent density≥2300kg/m3) in pier-beam consolidation, and fiber-reinforced cracking-resisted high-strength semi-lightweight concrete SC(dry apparent density 1950－2300kg/m3) between mid-span and pier-beam consolidation(about 1/4L).
Vol. 104(2007), p. 51(In Chinese) [3] Lou Zhuangming: Journal of Foreign Highway, Vol. 20(2000), p. 29 [4] Karl Melby: Proceedings 2nd international symposium on Structural lightweight aggregate concrete.
Kristiand, Norway, (2000), p. 47 [5] Muyu Liu, Huali Zhang: Journal of Wuhan University of Technology(Transportation Science & Engineering).
Vol. 33(2009), p. 944(In Chinese) [6] Jian Wang, Zhi Fang: China Civil Engineering Journal.

Introduction The transparent electronic materials are expected to be used as the building blocks for future optoelectronic devices.
Journal of Non-Crystalline solids (2008) [2] A.
Journal of Crystal Growth(2007) [4] D.
Chang, 19, 3135-3137.Journal of Meterials Chemistry(2009) [5] A.
Journal of The Electrochemical Society (2009) [9] H.

In recent years, there is no an accurate theoretical method that can calculate the mechanical properties of concrete under multiaxial stress in terms of nature and components of raw material of concrete in the world.
References [1] Song Yupu, Zhang Zhong,Qing Likun, et al.: Journal of Dalian University of Technology, Vol. 46 No. 1 (2006), p. 54-58 (In Chinese) [2]Zhang Zhong, Song Yupu, Qin Likun: Journal of Harbin Institute of Technology (New Series),Vol.15 No.5 (2008), p.679―685(In Chinese) [3] Khoury G A.: Magazine of Concrete Research, Vol.134 No. 38 (1986), p.3-12 [4] Sarshar R, Khroury G A: Magazine of Concrete Research, Vol.162 No.45 (1993), p.51-61 [5] Kupfer H, Hilsdorf H.K, Rusch H.: Journal of ACI, Vol. 66 No.8 (1969), p. 656-666
[6] Thienel K CH,Rostasy F S.: Materials and Structures, No.28(1995), p.575-581 [7] Xie Dimin,Qian Zaizi.
:Journal of Zhejiang University(Natural Science), Vol.32, No.5(1998), p.597-602(in Chinese)

Improvement of current gain and breakdown voltage in 4H-SiC BJTs employing high-k dielectric as an interfacial layer Lei Yuan1, a *, Yuming Zhang1, Qingwen Song2, Xiaoyan Tang1 and Yimen Zhang 1 1 Key Laboratory of Wide Band Gap Semiconductor Materials and Devices, Xidian University, Xi’an, China. 2 School of Advanced materials and nanotechnology, Xidian University, Xi’an, China ayl_xidian@163.com Keywords: Silicon Carbide; Bipolar Junction Transistor; high-k dielectric Abstract.
In recent years, high-k (k>3.9, k is the dielectric constant) materials have been studied widely.
Furthermore, in addition to replace the oxide layer with high-k materials deposition, it doesn’t need extra fabrication process.
Operation”, Materials Science Forum,vols.778-780, pp.1001-1004, 2014 [6] K.Mistry, C.Allen et al.
“Doping-induced bad edge displacements and band gap narrowing in 3C-, 4H-, 6H-SiC, and Si”, Journal of Applied Physics, vol. 84, no. 5, pp.2628-2637, September, 1998 [10] Matthias Roschke, Frank Schwierz.

Huang: Science and Technology Innovation Herald No.1(2010), p.116.
J: Popular Science Vol. 240(1992), p.69
Yang: Journal of Thermal Science and Technology Vol.7(2008), p.115
Xiong: Journal of Thermal Science and Technology Vol. 8(2009), p.131.
Jiang: Journal of thermal science and technology Vol.11(2012), p27-33.

Wang, Mechanical Behavior of Single Patch Composite Repaired Al Alloy Plates: Experimental and Numerical Analysis, Materials. 13(2020) 2740 [11] X.
Yu, Bonded Repair Optimization of Cracked Aluminum Alloy Plate by Microwave Cured Carbon‐ Aramid Fiber/Epoxy Sandwich Composite Patch, Materials. 12 (2019) 1655
Safarabadi, Numerical analysis of cracked aluminum plate repaired with multi‐scale reinforcement composite patches, Journal of Composite Materials. (54) (2020) 4341-4357
Mohammadi, Parametric investigation of one-sided composite patch efficiency for repairing crack in mixed mode considering different thicknesses of the main plate, Journal of Composite Materials.54 (2020) 3067-3079
Computational Materials Science. 46(4) (2009) 1023-1027

Therefore, the understanding of hot spots, also called hot judder, which is undesirable low frequency vibrations developed by non-uniform contact area between brake pad material and brake disc, is important for a better understanding of material design as well as enhancement of materials properties in railway brake disc.
Kwon: Key Engineering Materials, Vols. 385-387 (2008), p. 669
Liaw: Journal of Engineering Materials and Technology, Vol. 127, (2005), p. 8
Jeong: Key Engineering Materials, Vols. 297-300, (2005), p. 2533
Liaw: Materials Science and Engineering A, Vol. 409, (2005), p. 302.

Various material chemistry of carbon have been investigated as electrode material of EDLC in literature.
Despite great promises of these materials, they are too expensive for commercial integration.
Zhu et al., “Sustainable activated carbons from dead ginkgo leaves for supercapacitor electrode active materials,” Chem.
Zhu, “Low-cost, high-performance supercapacitor based on activated carbon electrode materials derived from baobab fruit shells,” J.
Sharma, “Journal of Colloid and Interface Science Chemically activated carbon from lignocellulosic wastes for heavy metal wastewater remediation : Effect of activation conditions,” J.

A High Thermoelectric Performance ZT in p-Type LaSe2 Crystal Jian Liu School of Materials Science & Engineering, Baise University, Baise 533000, Guangxi, China whuliujian@hotmail.com Keywords: First principle, thermoelectric, power factor.
Likewise, another way to enhance power factor(PF) is searching materials with a desirable band structure with small band effective mass and high valley degeneracy.
Recent theoretical work and experimental work suggest that the dimension reducing of materials could significantly improves the TE performance.
Baroni, Journal of Physics: Condensed Matter 29 (46), 465901 (2017)
Renata, Journal of Physics: Condensed Matter 21 (39), 395502 (2009)

The material K, Ca, Na and Al do not work for reductants due to their strong activity and high price[13-15].
However, it is difficult to resist the high temperature for the materials in the industrial production.
[11] Xiaoli Tang, Changsheng Liu, Activity of dead-burned magnesia, Journal of East China University of Science and Technology 27 (2001) 157-160
[21] Ihsan Barin, Thermochemical Data of Pure Substance, Science Press, Beijing, 2003
Bakish, Vacuum Matallurgy, Shanghai Science and Technology Press, Shanghai, 1982