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Introduction As an important construction materials, gravel materials have many good engineering properties such as high compactibility, high permeability, high shear modulus, high bearing capacity，et al.
Test simulations The stress vs. strain curve of coarse material as typical discrete materials has nonlinear characteristic.
International Journal of Rock Mechanics & Mining Sciences, 2004, 41: 1329-1364
Advanced Materials Research, 2010, 163-167: 4208-4212
Micromechanica of Granular Materials, 1988, 12: 113-123

Dizon, Application of Taguchi Methodology in Evaluating the Rockwell Hardness of SLA 3D Printed Polymers, Materials Science Forum 1005, (August 2020): 166–73
Dizon., Investigation on the Effects of Acetone Vapor-Polishing to Fracture Behavior of ABS Printed Materials at Different Operating Temperature, Materials Science Forum 1005 (August 2020): 141–49
Li, Metal-Based 3D-Printed Micro Parts & Structures, Reference Module in Materials Science and Materials Engineering, Elsevier, 2020, ISBN 9780128035818, https://doi.org/10.1016/B978-0-12-819726-4.00009-0
IOP Conference Series: Materials Science and Engineering, 2020, 971, 10.1088/1757-899X/971/3/032011
Hang, “Solid-state cladding on thin automotive sheet metals enabled by additive friction stir deposition,” Journal of Materials Processing Technology, vol. 291, pp. 117045, 2021

As we can see, there is a strong correlation between the eight journals and the six soil pollution sub research fields, and all researchers should focus on the eight core journals such as Chemosphere, Journal of Hazardous Materials, Environmental Pollution, Water, Air, and Soil Pollution, Environmental Science and Technology, Science of the Total Environment, Journal of Environmental Quality, Soil and Sediment Contamination; except the eight core journals above, each sub field researchers should particularly pay attention to their respective journals, g01 ( Biodegradation, Bioremediation, Biotechnology) sub field researchers should focus on the six core journals such as Environmental Monitoring and Assessment, Environmental Toxicology and Chemistry, Journal of Environmental Sciences, Soil Biology and Biochemistry, Bioresource Technology, International Biodeterioration and Biodegradation, g02 ( Zinc, Lead, Metals) sub field researchers should focus on the six core journals such as Environmental
Monitoring and Assessment, Geoderma, Journal of Environmental Sciences, Bulletin of Environmental Contamination and Toxicology, Environmental Earth Sciences, Journal of Geochemical Exploration, g03 ( Groundwater pollution, Hydrogeology, Sedimentology) sub field researchers should focus on the six core journals such as Environmental Monitoring and Assessment, Environmental Toxicology and Chemistry, Geoderma, Bulletin of Environmental Contamination and Toxicology, Environmental Earth Sciences, Applied Geochemistry, g04 ( Biological materials, Biogeochemistry, Organic compounds) sub field researchers should focus on the six core journals such as Environmental Monitoring and Assessment, Environmental Toxicology and Chemistry, Geoderma, Journal of Environmental Sciences, Soil Biology and Biochemistry, Soil Science Society of America Journal, g05 ( Environmental impact, Risk assessment, Ecology) sub field researchers should focus on the five core journals such as Environmental Monitoring and
Assessment, Environmental Toxicology and Chemistry, Geoderma, Journal of Environmental Sciences, Soil Biology and Biochemistry, g06 ( Mathematical models, Computer simulation, Mass transfer) sub field researchers should focus on the five core journals such as Environmental Toxicology and Chemistry, Soil Biology and Biochemistry, Journal of Environmental Science and Health-Part A Toxic/Hazardous Substances and Environmental Engineering, Journal of Environmental Engineering, Journal of Contaminant Hydrology.
The analysis of the correlation between the soil pollution related literatures and the published journals shows that: eight journals are the core journals of the entire soil pollution research and all researchers should focus on the eight core journals, such as Chemosphere, Journal of Hazardous Materials, Environmental Pollution, Water, Air, and Soil Pollution, Environmental Science and Technology, Science of the Total Environment, Journal of Environmental Quality, Soil and Sediment Contamination.
Journal of Anhui Agricultural Sciences. 2008(12): 5075-5076.

Study on Antibacterial Mechanism of Ag-Inorganic Antibacterial Material Containing Lanthanum Tang Xiaoning 1, a , Zhang Bin 2, b , Xie Gang 1, c , Xia Xueshan3, d 1 Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China 2 Faculty of Science, Kunming University of Science and Technology, Kunming 650093, China 3 Faculty of life science and technology, Kunming University of Science and Technology, Kunming 650093, China a tangxn6666@sina.com, b zhangbin7526@163.com, cgangxie@sina.com, d oliverxia2000@yahoo.com.cn Key words: inorganic antibacterial material; white carbon black; lanthanum nitrate; antibacterial mechanism Abstract Inorganic antibacterial materials consist of the antibacterial ions, the additives and the carrier.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION.
Journal of Rare Earths.
JOURNAL OF RARE EARTHS.
JOURNAL OF RARE EARTHS.

Materials and Experimental Procedures Preparation of Gradient Ceramic Nozzle Materials.
Deng: Materials Science and Engineering A.
Yuan: Materials Science and Engineering A.
Li and etal: Materials Science and Engineering, Vol.418 (2006), pp. 99-110
Hockey: Journal of Materials Science, Vol.18 (1983), pp. 766-780

Phase change materials and building materials can be made of composite phase change energy storage building materials [1].
Public Communication of Science & Technology.2011, 8, 82, 51 [3]Li Dong, et al.
On the Application of Composite Phase Change Material in the Floor Radiation Heating [J].Journal of Building Materials, 2010, 13(2):161-164 [21] YAN Jiatao, et al.
Journal of Building Materials, 2003, 6(4): 374-379
New Building Materials, 2003, 12:1-5

Then, powder materials was used to improve the fatigue characterization of composite materials reinforced by fiber materials [6-12].
[3] Worood Hussein and Mohsin Abdullah Al-Shammari, Fatigue and Fracture Behaviours of FSW and FSP Joints of AA5083-H111 Aluminium Alloy, IOP Conference Series: Materials Science and Engineering, International Conference on Materials Engineering and Science, 454 (2018)
[37] Fahad M Kadhim, Jumaa S Chiad and Ayad M Takhakh, Design And Manufacturing Knee Joint for Smart Transfemoral Prosthetic, IOP Conference Series: Materials Science and Engineering, International Conference on Materials Engineering and Science, 454 (2018)
[49] Muhsin J Jweeg, Kadhim K Resan, Esraa A Abbod and Muhannad Al-Waily, Dissimilar Aluminium Alloys Welding by Friction Stir Processing and Reverse Rotation Friction Stir Processing, IOP Conference Series: Materials Science and Engineering, International Conference on Materials Engineering and Science, 454 (2018)
[80] Emad Kadum Njim, Muhannad Al-Waily, Sadeq H Bakhy, A Critical Review of Recent Research of Free Vibration and Stability of Functionally Graded Materials of Sandwich Plate, IOP Conference Series: Materials Science and Engineering, 1094 (2021)

Application of Task-based Language Teaching in University Education of Functional Materials Specialty English Mingming Cheng1, a, Fei Wang2, b and Lijuan Wang2, c 1School of Humanities, Tianjin University of Finance and Economics，Tianjin 300222，China 2Institute of Power Source & Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China achengmingming2011@126.com, bwangfei36777@163.com, cwljhh@yahoo.com.cn Keywords: functional materials, task-based language teaching, specialty English teaching Abstract.
Finally, teachers should generalize the common steps of preparation method for this kind of materials, which can be concluded as follows: choosing raw materials, pretreating raw materials, processing materials, characterizing and evaluating materials. 2.4 Effect of teaching practice Task-based language teaching establishes a relaxed and authentic context for communication, which can improve English listening ability, speaking ability and communication skills of students, and cultivate their self-learning ability and comprehensive skills of solving problems.
Li: Journal of Science of Teachers’ College and University, Vol. 26(2006), p. 1 [3] N.L.
Lu: Journal of Changchun University of Science and Technology (Social Sciences Edition), Vol. 22(2009), p. 497 [4] L.J.
Carless: ELT Journal, Vol. 56(2002), p. 389 [11] W.

Science of the Total Environment, 155577
Journal of Cleaner Production, 136883
Science of the Total Environment, 814, 152697
Journal of Energy Storage, 62, 106911
Journal of Cleaner Production, 137152.

First, asphalt materials extracted using centrifugation extraction apparatus.
Chiu [6] study the eco-burden by using recycled materials to rehabilitate asphalt pavements.
There were some research results on the performance of recycled asphalt materials.
HENAN SCIENCE, 2008, 26(7):818-821
Journal Materials in Civil Engineering, ASCE, 2006, 18(1):729-739