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Lerch: International Journal of Fatigue Vol. 30 (2008), p. 568
Lerch: Journal of Nuclear Materials Vol. 353 (2006), p. 101
Chaboche: Mechanics of Solid Materials (Springer-Verlag, 1987) [7] T.L.
Knésl: Material Science and Engineering A Vol. 387-389 (2004), p. 491
Knésl: Computational Materials Science Vol. 37 (2006), p. 51

Due to their hardness and strength, these whiskers are highly interesting as reinforcing materials in ceramics as well as in metals.
Aluminum, silicon and copper were used as starting materials.
Mockford, G.H.Pigott, P.J.Pinto- Toxicity of silicon carbide whiskers, Journal of Materials Science Letters, 7 (1998) 350-352
[7] W.D.Fei, V.B.Li, Effect of nickel oxide coating of whisker on tensile strength of aluminum borate whisker- reinforced aluminum composite, Materials Science and Engineering: A, 39[1-2] (2004) 27-32
[8] R.K.Gupta, A.A.Al- Ghamdi, Omar A.Al-Hartomy, Synthesis and characterization of nanostructured aluminum borate by sol- gel method, Journal of Sol-Gel Science and Technology, 64[1] (2012) 100-103.

Secondly, automation communication must be based on communication materials.
And the communication materials are very full.
The correct choice of the materials will directly influence practice effeciency.
How do learners choose the best communication materials?
Chinese Journal of electrization education. 2006 [2] Xianzhi Tian,Advanced Research on Industry, Information System and Material Engineering IV,Advanced Material Research,Volume 1014 ,2014 [3] Kikuchi, K., Sakai, H.

Study on Processing Properties of Epoxy Resin System in VARI Chenhui Zhao, Guangcheng Zhang, Weimin Sun and Aihua Shi Department of Applied Chemistry, School of Natural and Applied Science, Northwestern Polytechnical University, Xi’an,710129,P.R.China zhaohui18201@163.net, zhangguc@nwpu.edu.cn, outcast191@163.com and Shiaihua2000@126.com.
As a low cost moulding technology, VARI is widely used to produce advanced composite materials.
The resin is injected through either a single or multiple inlet ports (depending on the part size and shape),then transferred into the preform by a pressure gradient (induced by the vacuum pressure), and gravity and capillary effects; (c) curing of the impregnated perform[5,6].Because VARI process is usually used to produce the large-scale composite structures such as ships, refrigerated containers and bridge deck[7], a large amount usage of raw material usage, complex and time-consuming process make it necessary to study in-depth on resin used in VARI.
Experimental Materials.
Vol. 19 ( 1998), p. 818 [7] Li Xinhua,　Zhu Yingdan,　Wang Jihui,　Gao Guoqiang: Journal of WuHan University of Technology (in Chinese), Vol. 24(2002), p. 1 [8] Liu Zhuofeng , Xiao Jiayu, Zeng Jingcheng, Jiang Dazhi, Liu Jun:Journal of National University of defense technology (in Chinese), Vol. 30(2008), p. 20

The sixth edition textbook of national planning materials edited by Wenying Liu, one of the advanced inspiring applicable and scientific teaching materials has been chosen as the theoretical teaching material, which makes preparation for the examination of the licensed pharmacists and postgraduate.
Journal of Education Teaching Research, Vol. 1(2010), p. 63.In Chinese [2] Caigong Liu, Yuqin Li and Yongxiu Ji.
Journal of Chinese Modern Education Equipment, Vol. 5(2009), p. 85-86.
Journal of Pharmacy education, Vol. 19(2003), p. 28-29.
In Chinese [4] Yi Xu, Duiling Hao and Qian, Lu.Journal of Pharmaceutical Education, Vol. 23(2007), p. 40-41.

Parameters of rock mass and constitutive model There are six kinds of rock mass materials used in the simulation, including moraine deposit, alluvial deposit, and fully weathered, strongly weathered, weakly weathered, new bedrock.
The physical and mechanical parameters of materials used in the simulation are given in Table 1.
All the materials are considered as ideal plastic.
Canadian Journal of Earth Sciences, 2004, 41(2):165-182
Advance in Earth Sciences, 2004, 19:318-323.

Materials and Methods CEB-FIP Method.
De Belie, “Effect of the Mechanical Load on the Carbonation of Concrete: A Review of the Underlying Mechanisms, Test Methods, and Results,” materials, 2021, doi: 10.3390/ma
Zhang, “Effect of Temperature on Concrete Carbonation Performance,” Advances in Materials Science and Engineering, vol. 2019, 2019, doi: 10.1155/2019/9204570
Thombare, “Accelerated Carbonation Assessment of High-Volume Fly Ash Concrete,” Journal of Materials Science and Chemical Engineering, vol. 08, no. 03, pp. 23–38, 2020, doi: 10.4236/msce.2020.83002
Fante et al., “Behavior of cementitious mixtures with filler carbonate subjected to accelerated carbonation,” Case Studies in Construction Materials, vol. 17, Dec. 2022, doi: 10.1016/J.CSCM. 2022.E01300

Experimental Materials.
IOP Conference Series: Materials Science and Engineering, 2019. 509: p. 012080
IOP Conference Series: Materials Science and Engineering, 2019. 509: p. 012014
Journal of Industrial Textiles 2016, 47 (8), 2153-2183
Journal of Composites Science 2019, 3 (1), 27

The analytical results indicate that the reliability indexes of the design formulae can meet the requirements of the Unified Standard for The Reliability Design of Building Structure (GB 50068-2001) for plastic material.
Statistical parameters of the material property index Parameter steel Q235 Q345 fy(fck)[MPa] 235 345 f(fc)[MPa] 215 310 µkmc 1.087 1.094 δkmc 0.075 0.093 Table 3.
The statistical parameter of Strength of steel structure materials and geometric characteristics of cross section.
Journal of Chongqing architectural engineering institute . 1985(1): 36～41 [3] Guoxin Dai, Longchun Li, Zhenzhong Xia etc. building structural steels new material properties statistics and analysis of .
Journal of Chongqing architectural engineering institute. 1993(2): 5～8 [5] Feng Zhao.

It is this unparalleled advantages that making laser direct deposition technique has great application value in the important industrial areas of aviation,aerospace,rare metal parts manufacturing and repair materials,functionally gradient materials, design and other manufacturing.
Substrate materials is copper, deposition parts is divided into ten layers and the property of every layer is the Graphite copper composite materials,graphite and copper thermal physical data reference literature[6],While the thermal physical parameters of each layer may be calculated based on composite algorithms of composite material.the graphite volume fraction increasing by 10% from the bottom up of deposition parts,and the graphite volume fraction of the first layer is 10%.
From Fig. 5 can also be learned the Z-Component of stress getting larger from top to bottom,and the risk of cracking is increasing from top to bottom.This is due to the substrate is at room temperature condition in the early of deposition , the depositing materials on substrate is rapid quenching by heat transfer,and leads to large tensile stress.with the material deposition,the temperature of the substrate is higher and the cooling rate of the material become gentle, so the tensile stress is smaller.In the same way,the X-Component of stress also showed the trend of gradually increases from top to bottom in Fig. 5,that is easy appear the crack of parallel to the Y direction.
Conclusion (1)Suitable control of the laser power benefits for each layer material to remelt
Acknowledgement This work was sponsored by the National Natural Science Foundation of China (51165008, 51265014),Science Foundation of Jiangxi Province Education Department (GJJ12282), Science Foundation of Jiangxi Province (2012BBE5001, 20122BDH80021), Key Laboratory of Ministry of Education for Conveyance and Equipment,East China Jiaotong University(11JD03).