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Introductions Engineering cementitious composites (ECC) is a new type of composite materials, has been extensively studied and applied in many countries [1].
Wang, Experimental study on the axial compressive strength and elastic modulus of GHPFRCC, Applied Mechanics and Materials.
Keoleian, Design of green engineered cementitious composites for improved sustainability, ACI Materials Journal. 105(2008) 567-575
Luo, Study on the reinforced concrete column strengthened by GHPFRCC with high volume of fly ash, Applied Mechanics and Materials.
Xu, Uniaxial compressive properties of ultra high toughness cementitious composite, Journal of Wuhan University of Technology-Material. 26(2011) 762-769.

Organization of the Text Materials.
Dielectric properties of EP/PS/CB composite materials.
Li: Materials Letters Vol. 64(2010), p.2226
Zhang: Journal of Applied Polymer Science Vol. 98(2005), p.1142
Zhang: Journal of Applied Polymer Science Vol. 99(2006), p.461

Poor toughness in thermosetting matrix composites often leads to the premature failure of the materials under Mode I (interlaminar tension or peel) or Mode II (interlaminar shear) loading.
However, in the composites, this increase reduces to about 2-fold and 3-fold, respectively, showing that toughness of the matrices do not completely transfer to improvement of fracture toughness of the composite materials.
Egan: Journal of Materials Science, Vol. 43(3) (2008), p. 1151 [2] A.J.
Egan: Journal of Materials Science, Vol. 43(3) (2006), p. 5043 [3] D.L.
Bradley, in: Application of Fracture Mechanics to Composite Materials, edited by K.

In this study model experiment of F-T soil interface with different aggregate materials is designed by alternating the F-T cycle times, then the parameters c and the φ were obtained.
Material and method The soil specimens are composed of silty clay in Harbin, the basic parameters of them are listed in Table 1.
Journal of Harbin Institute of Technology, 38, 764-766
Chinese Journal of Geotechnical Engineering, 12, 1766-1770
“Research on the soil slope stability based on soil strength deterioration in seasonal frozen areas”, Advanced material research, 243-249, 4270-4273

Environmental Earth Sciences 2012;66:355-62
Construction and Building Materials 2013;38:1276-91
Journal of Applied Geophysics 2000;45:141-56
Vadose Zone Journal 2012;11
Dianbo Kexue Xuebao/Chinese Journal of Radio Science 2010;25:66-72.

The parameters of the tunnel portal’s similar material(gypsum) is shown as Table 1.
Journal of the china railway society 1998, Vol. 18 (1998), p. 101, In Chinese； [2]SONG Shuzhi, KONG Jiming, WANG Chenhua, et al., Wuhan University Journal of Natrue Sciences, Vol. 11 (2006), p. 905, In Chinese; [3] YE Siqiao, CHEN Hongkai1, TANG Hongme.
China Railway Science, Vol. 29 (2008), p. 17, In Chinese; [4] F.Delhomme,M.Mommessin, J.P.Mougin, P.Perrotin.
Journal of Geophysical Research, Vol.108(2003), p.201; [9]Pichler B, Hellmich Ch, Mang H A.
Journal of east China institute of technology.

Discriminant Condition of Influencing Dynamic Response for Structure-Equipment System Fang Han 1,2,a, Dongwang Zhong 1,2,b and Jiyun Mo1,2,c 1School of Science, Wuhan University of Science and Technology, Wuhan,430065, China, 2Hubei Province Key Laboratory of Systems Science in Metallurgical Process, Wuhan University of Science and Technology, Wuhan,430081, China ahanfang522@163.com , bzhongdw123@263.net , cmojiyun@hotmail.com Keywords: structure-equipment system, dynamic interaction, discriminant condition, seismic design, vibration.
Basic material parameters are shown in Table1 and finite element model is shown in Fig.2.
Table 1 Basic material parameters Material Elastic modulus[GPa] Poisson ratio Bulk density[kg.m-3] Steel 200 0.300 7 850 Concrete 21.5 0.167 2 500 The first three frequencies are calculated as shown in Table 2.
References [1]HGürgöze, M.H HÇakar, O.Hand HZeren, S:H Journal of Sound and Vibration.Vol.295(2006),p.436 [2] HM.
ShvindinH: HChemical and Petroleum EngineeringH.Vol.39(2003),p.92 [4]Ru Xue,Youcai Zhang and Shenggui Liu:Journal of China University of Mining and Technology.Vol.32(2003),P.540(in Chinese) [5] Jie Li, Huai Chen and Zengshou Sun.

Low-pressure Preheating Combustion Synthesis of Silicon Nitride Ke Zhang a∗, Ling Baib, Weiping Shenc, Changchun Ged 1 School of Material Science and engineering, University of Science and Technology Beijing, Beijing, 100083, China a zkdaz@163.com, bbailingniao111@163.com,c shenwp@mater.ustb.edu.cn, d ccge@mater.ustb.edu.cn Keywords: silicon nitride, preheating, combustion synthesis, diluent Abstract: Silicon nitride was prepared by means of low-pressure preheating combustion synthesis in this paper.
Nature (London), 1957,180:332-333 [2] Riley F L.Silicon Nitride and Related Materials.
Journal of the Chinese Ceramic Society,1980, 8（4）：414～421(in Chinese) [11] Cao Y G.
Paper of Doctor degree， Beijing：University of Science and Technology Beijing，1998(in Chinese) [12] Shen W P.
International Journal of Self-Propagating High-Temperature Synthesis, 2000,9(2): 171-191

The materials discharged from the press known as cake is further extracted using chemical extraction like Soxhlet extraction with Hexane as the solvent.
Bamniya, Bio Diesel from Castor Oil – A Green Energy Option, Science Research (2011) 1 – 6
Ogunniyi, Castor Oil: A Vital Industrial Raw Material, Bioresource Technology (2006)
Riley, The fatty acids and glycerides of castor oil, Journal of the Science of Food and Agriculture (2006) 245-251
[13]Akpan U.G., Jimoh A., Mohammed A.D., Extraction, Characterization and Modification of Castor Seed Oil, Leonardo Journal of Sciences (2006) 8, 43-52.

[5] Marcin Małek, Marta Kadela, Michał Terpiłowski, Tomasz Szewczyk, Waldemar Łasica, and Paweł Muzolf, “Effect of Metal Lathe Waste Addition on the Mechanical and Thermal Properties of Concrete”, Materials journal, Volume 14, pp. 2760-2759, 2021
[7] Mohammed Seddik Meddah, Mohamed Bencheikh, “Properties of concrete reinforced with different kinds of industrial waste fibre materials”, Construction and Building Materials journal, Vol. 23, July, 2009, pp. 3196–3205
[10] Gawatre, D.W., Haldkar, P., Nanaware, S., Salunke, A., Shaikh, M., Patil, “Study on addition of lathe scrap to improve the mechanical properties of concrete”, International Journal Innovate Research Science Engineering Technology, Volume 5, 2016, pp.8573–8578
Moawad, “Effect of short glass fiber on shear capacity for shallow wide reinforced concrete beams”, Journal of Engineering and Applied Science, 2021
Li, “Concrete reinforcement with recycled fibers”, Journal of Materials in Civil Engineering, Volume 12, Issue 4, March 2017, pp. 314-319.