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Research on Similar Materials Simulation Test for Protective Coal-seams of Group B Coal-seams of Panyi Coal Mine of China Feng Cai 1, 2, a and Zegong Liu 1, b 1School of Energy & Safety, Anhui University of Science and Technology, Huainan, 232001, China 2Department of Mining Engineering, West Virginia University, West Virginia, 26505, U.S.A afcai@aust.edu.cn, bzgliu@aust.edu.cn Keywords: Protective coal-seams; Similar materials simulation test; Dilation rate; Stress fields Abstract.
Similar Materials Test According to the purposes of test and properties of #4 coal-seam and adjacent rock and coal seams, the model for similar materials test is built as shown in Fig. 1.
International Journal of Rock Mechanics & Mining Sciences 43, 905–919
Mining Science and Technology 19, 724–729
International Journal of Rock Mechanics & Mining Sciences 47, 614–624

Many researchers assume materials are incompressible.
Such materials are known as pressure sensitive materials.
Journal of Engineering Materials & Technology.
Journal of the Mechanics and Physics of Solids.
Journal of Applied Mechanics.

Development and Design of Coal Gangue Concrete Filling Material Youxia Sun1, a, Xingdong Li2,b 1Key Laboratory of Mining Disaster Prevention and Control of Education Ministry, Shandong University of Science and Technology, Qingdao, Shandong, 266510, China 2College of Natural Resources and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266510, China asyxljl@sohu.com, blxd7356@sina.com Keywords: coal gangue, filling material, development design Abstract.
Thus far there are mainly four kinds of filling materials, which are high water materials, solid materials, paste filling materials and paste-like filling materials.
Except high water materials, the other three all use coal gangue as aggregate.
Kaolinite mudstone and illite shale can be used to produce coal gangue brick of porous sintered materials, building ceramics, aluminum ore, silicon aluminum alloy, road construction materials.
References [1] Minggao Qian, Jialin Xu: submitted to Journal of University of Mining & Technology (2003) in Chinese [2] Nailiang Li, Guangming Feng: submitted to Journal of Coal Mining Technology (2010), in Chinese [3] Xiexing Miao, Jixiong Zhang: submitted to Journal of China Coal Society (2010). in Chinese [4] Huaqiang Zhou: submitted to Journal of University of Mining & Technology (2004) in Chinese [5] Yucheng Huang, Henghu Sun: submitted to Journal of Coal Science and Technology(2003) in Chinese

Characterization and Design of Honeycomb Absorbing Materials Huimin Suna, Le Chenb and Zhaozhan Guc College of Electronic Science and engineering, Nanjing University, Nanjing, 210046, China asunhuimin@nju.edu.cn, bchenle_26@163.com, ctommygu@nju.edu.cn Keywords: honeycomb sandwich structures, absorbing materials, electromagnetic parameters, CST Abstract.
Honeycomb absorbing materials are anisotropic structural materials.
Packaging Journal. 2(1) (2010) 21-23
Journal of Mechanical Engineering Science. 221(7) (2007) 753-767
Science China Press. 43(9) (2013) 1057-1064.

This study investigates the influences of slopes on objective friction measurements of different floor materials.
Thus, COF measurements under different slopes, floor materials and surface conditions were conducted in this study.
Especially for glycerol-contaminated floor, COF may worsen to zero no matter what the floor and shoe materials are.
Then the three tested floor materials were placed on the horizontal surfaces and ramp respectively.
Journal of Electromyography and Kinesiology, Vol. 18 (2008), p. 205-217

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.

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)

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

A vast volume of annually renewable wastes of plant origin could be regarded as an advanced innovative raw materials resource with the great diversity of properties for manufacturing compound polymer materials [3].
Results and Discussion Wollastonite could be regarded as an efficient filler of polymer materials including epoxy materials, however, raw materials source base is not sufficient to cover the needs of all the segments of industry [13].
George Rubber Seed Oil: A Multipurpose Additive in NR and SBR Compounds, Journal of Applied Polymer Science. 72 (1999) 487-492
Hymor Considerations of the extraction process and potential technical applications of Nigerian rubber seed oil ,International Journal of the Physical Science. 5(6) (2010) 826-831
Andreeva, Determination of As SI‐Sb SI glasses short‐range structure via Raman spectroscopy, XPS and XRD, International Journal of Applied Glass Science, 9(1), (2018) 85-89

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