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Table 11 Classification scores and strength parameters of structural planes in CSPC method Grade Description CSPC Strength parameters Friction angle(°) Cohesion(MPa) Ⅰ Excellent 80~100 >35 >0.20 Ⅱ Very good 60~80 35~27 0.20~0.11 Ⅲ Good 41~60 27~18 0.11~0.07 Ⅳ Poor 21~40 18~12 0.07~0.03 Ⅴ Bad 0~20 <12 <0.03 Verification of the CSPC Classification System A large amount of materials and descriptions of structural planes are collected and referred.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (51074042) and National Natural Science Foundation of China (51179031).
(in Chinese) [8] Guangzhong Sun: Rock mass structure mechanics (Science Press Publications, Beijing 1988).
Egger : submitted to Journal of Rock Mechanics and Mining Sciences, Vol.40, No.1 (2003), p.25
[14] Lin Zhu: submitted to Journal of Hunan Institute of Engineering, Vol.20, No.1 (2010), p.92.

A Brief Review of Organic Solar Cells and Materials Involved in Its Fabrication.
Materials Today: Proceeding. 56: 3826-3829 [2] Ghorab, M., Fattah, A., and Joodaki, M. 2022.
In IOP Conference Series: Materials Science and Engineering (Vol. 541, No. 1, p. 012018).
Materials Research, 14, 552-559
International Journal of Electrochemical Science, 16(11), 211149

Cement construction materials are the most widely used materials in the world.
Materials and Methods 1- Materials Cement: The type of used cement (C) is CEM II – 32.5 (according to NT 47-01) from the West Djebel Cement Plant (Tunisia).
Series: Materials Science and Engineering 640 (2019) 012055 [3] Schneider, M.
Bamaga, Physical and mechanical properties of mortars containing date palm fibers, Journal of Materials Research Express, 9 015 102 (2022) [13] B.
Mondher, The effect of doum palm fibers on the mechanical and thermal properties of gypsum mortar, Journal of Composite Materials, Volume 53, issue 19, pp. 2641-2659 (2019)

Introduction Ultrasonic shot peening is one of die less sheet metal forming and a mechanical surface treatment proposed in recent years, which aims at inducing strong and multi-directional impacts on the surface of materials with spherical shots or pins accelerated by high-power ultrasounds in a short time.
Test conditions 2.1 Test equipment and materials Deburred work samples of AALY12 were cut from experimental plate with its dimension of 150×35×1.5mm.
Materials and Design, Vol. 32(2011), p. 2213–2220 [5] Bohdan N.
Journal of Sound and Vibration, Vol. 308(2007), p. 855 – 866 [6] Miao hong, Zuo Dun-wen.
Journal of Jilin University (Engineering Science), Vol.41 (2011), p.1290-1294

Journal of Crop Science and Biotechnology. 17 (2014) 221-227
Current Opinion in Solid State and Materials Science. 8 (2004) 397-404
Soil Science Society of America Journal. 42 (1978) 421-428
Journal of Materials Science: Materials in Electronics. 26 (2015) 791-800
Indian Journal of Science and Technology. 7 (2014) 1376-1381

The use of natural fibers in this process is inexpensive and such materials can be referenced as biocomposites, saving the primary raw material.
Introduction Composite materials can be characterized as systems that take advantage of its partial phases [1-2].
The most common type of composite materials is primarily long-fiber composites with arranged fibers.
Sisal fibers are used, for example, for increasing the strength of polymeric materials.
Araújo Rohen, et al.: Tensile behavior of epoxy composites reinforced with thinner sisal fibers: Materials Science Forum, Vol. 869 (2016), p. 249-254 [8] K.

Study on Synthesis of Preservative Benzyl Methyl Fumarate Na Li a, Ziping Zhub School of Life Science, Taizhou University, Taizhou, China aleena@scut.edu.cn, bzhuzp123@sohu.com Keywords: Preservative, Benzyl Methyl Fumarate, Synthesis, Optimal Conditions Abstract.
Using maleic anhydride, benzyl alcohol and methanol as raw materials, a new preservative benzyl methyl fumarate containing α, β-unsaturated carbonyl structure was prepared.
In this research, maleic anhydride, benzyl alcohol and methanol were used as raw materials to synthesize a new preservative of benzyl methyl fumarate with α, β-unsaturated carbonyl structure while studying the synthesis method and conditions.
Huhtanen: Journal of Food Science.
Mccaffrey: Journal of Food Protection.

Introduction Polymeric materials are cynosure of multifarious researchers owing to its light weight, corrosion resistance and chemical inertness.
Materials and Methods Materials.
Kanagaraj: Journal of The Mechanical Behavior of Biomedical Materials Vol. 18 (2013), p. 140
Wang: Journal of Bionic Engineering Vol. 11 (2014), p. 144
Mandelkern: Journal of Polymer Science Vol. 22 (1984), p. 407.

The novel form-stable composite phase change materials (PCMs) of crosslinked PEGA and P(PEGA-HAM)/PEG gels were synthesized, which based on PEGA .
Experimental Materials.
Except for PEGA, all materials were used without further purification.
Liu, et al.: Solar Energy Materials & Solar Cells 96 (2012), p. 202 [4] C.Z.
Frost: Textile Research Journal 55 (1985), p. 737 [8] J.

In the process, metal nitrate is used as raw materials, citric acid as combustion agent, and ammonium nitrate as assistant combustion agent.
The materials are dissolved in water to form solution in accordance with the need ratio.
Materials Review, Vol. 5(20) (2006), p. 142
Journal of Solid State Chemistry, Vol. 165(1) (2002), p. 193
Materials Science and Engineering: B, Vol. 137(1-3) (2007), p. 189