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The half sine loading wave which can strictly meet the one-dimension assumption is one of the ideal loading waveforms of the rocky heterogeneous materials.
This supports that the feasibility to test dynamic properties of rock-like brittle materials with 100 mm diameter split Hopkinson pressure bar.
References [1] S.S.Hu: Ordnance Material Science and Engineering, Vol. 11 (1991), p. 40
Zhu etc: Journal of Northeastern University (Natural Science), Vol. 28 (2007), p. 859
Tao: Journal of Southwest University of Science and Technology, Vol. 24 (2009) No.3, p. 27

Chaotic characteristic analysis of concrete fracture system Based on Lyapunov Exponent Stability Criterion Junwei Song School of Civil Engineering, Jiangxi university of technology, China okby@sina.com Keywords: Lyapunov exponent; concrete materials; features of stages; chaos; dynamics; stability criterion Abstract.
According to the research on whole curves of strain-stress of concrete materials, the paper illustrates in evidence features of stages and shows that the discrete feature of curve often occurs in strain-softening stage.
It is significant to understand and master the concrete stage characteristics further and chaotic forecast in properties of concrete materials through several researches on typical concrete’s chaotic features in different stress stages.
Journal of the American Water Re-sources Association,1998:301~310 [3]Song Yu, Chen Jia-jun, Sun Xiong.
Beijing: Science Press,2000

Jc cakes obtained after oil pressed, rich in protein content, were excellent materials for preparing formaldehyde-free wood adhesives, which could provide alternative to formaldehyde-based resins.
In addition, formaldehyde-based adhesives are derived from nonrenewable fossil resources, which generate an urgent need for the development of environmentally friendly alternative wood adhesives from renewable materials [2-3].
Materials and general methods Materials.
Journal of Biobased Materials and Bioenergy, 2008. 2: 1-24. 2.
Journal of the Science of Food and Agriculture, 2008. 88: 911-919. 11.

Alumina (Al2O3) and zirconia (ZrO2) are the ceramic materials that are utilized the most frequently.
Alam, Structural and mechanical properties of alumina-zirconia (ZTA) composites with unstabilized zirconia modulation, Materials Sciences and Applications, 12 (2021) 542–560
Mitra, Nanostructured Al2O3–ZrO2 composite synthesized by sol–gel technique: powder processing and microstructure, Journal of Materials Science, 42 (2007) 1847–1855
Alam, Structural and Mechanical Properties of Alumina-Zirconia (ZTA) Composites with Unstabilized Zirconia Modulation, Materials Sciences and Applications, 12 (2021) 542–560
Yan, Effect of Sintering Temperature on Properties of Al2O3/Al Cermets, in: Materials Science and Engineering, (2017) 494–499.

Li, Effect of curing conditions on pore structure of cement based materials, Journal of the Chinese Ceramic Society. 5(2013)597-604
Xu, Fracture properties and micro-pore structure of cementitious composites, Journal of Building Materials. 14(2011)523-527
Li, Influence of size effect on bonding performance between coarse aggregate and cement paste, Journal of Building Materials. 5(2012)712-716
Chen, Effect of modification of interfacial structure on road properties of concrete, Journal of Building Materials. 4(2001)351-355
Ventura, A review of extended/generalized finite element methods for material modeling, Modeling and Simulation in Materials Science and Engineering. 17(2009) 1-24

Experimental Details Materials.
Journal of Applied Polymer Science, 2019. 136(8) 47082
Journal of Inorganic and Organometallic Polymers and Materials, 2021. 31(2) 683-694
Journal of Applied Polymer Science, 2019. 136(33) 47869
European Journal of Lipid Science and Technology, 2018. 120(1) 1700091

Problems and Countermeasures in the Application of the Fire Chemical Detection Equipment based on Material Properties Yuanyuan Wang Kunming fire-fighting command school of public security fire forces, Kunming, Yunnan Province, China 1009541492@qq.com Keywords:Problems and Countermeasures Fire Chemical detection equipment material properties Abstract.
The author finds problems of fire chemical detection equipment based on material properties in the process of the actual application through learning and exploration, and puts forward the solving method to explain the misunderstanding when fire officers and soldiers use detection equipment based on material properties.
There are two solutions.The first is to adjust Chinese measurement unit,the second is to find foreign gas concentration table as electronic documents stored in the notebook computer Summary With the social and economic progress, fire chemical detection equipment based on material properties will be more and more advanced., detection equipment will be more and more able to meet the needs of fire fighting and rescue when material is more advanced, and they will play more and more important role.
Safety management teaching materials of hazardous chemical materials[M].
Chinese journal of safety science, 1999, 9 (5) : 96- 99.

From the images, it can be seen that substrate materials have notable effects on the structure of SnO2 films.
That is to say, different substrate materials produced different structural SnO2 films, even in the same deposition condition.
The three substrate materials have their own surface morphology in crystal state and electronic state.
Conclusions In summary, our studies have elucidated several important features of APCVD deposition of tin oxide on different substrate materials or surface
Journal of Materials Science, Vol. 29(1994): P.5095

Bending properties of four-layer biaxial weft knitted fabric reinforced composite materials Liangsen Liu, Yexiong Qi, Jialu Li Composites Research Institute of Tianjin Polytechnic University & Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tianjin 300160, China email:qi_ye_xiong@163.com, fhcls@tjpu.edu.cn Keywords: Four-layer biaxial weft knitted fabric, composite materials, bending strength, bending modulus Abstract.
The bending properties of the FBWK fabric reinforced composite materials with different fiber volume fraction have been investigated.
The bending modulus and bending strength of FBWK reinforced composite materials have a great relationship with fiber volume fraction.
Within a certain range, the bending modulus and bending strength of FBWK reinforced composite materials increase with fiber volume fraction increases.
Sci. & Tech., 60(2000), p33 [4] Liangsen Liu, et al: Journal of Tianjin Polytechnic University, 20 (2001), p. 21

The plate is , has a thickness of and is made from the stiffener material and weaker material .
Journal of Chemical Engineering of Japan, 36(1): 14-19, 2003
International Journal for Numerical Methods in Engineering 2004; 61: 2296-2315
Mechanical Science and Technology for Aerospace Engineering, Vol. 18 No. 21, 2009
SIAM Journal on Optimization, 12(2):555–573, 2002