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It means that the coal face is lain horizontally and advances along the dip; the flexible shield is used to separate the gob area; the waste rocks are self-filled downward to the top the shield; the coal is broken by drilling and blasting method under the shield, and the broken coal is transported by the electrical winch and the scraping mucker; the flexible shield moves downward automatically by the weight of itself and waste rocks.
When the face advancing depth is 1.5m, the flexible shield support should be installed in the face which is extended until it reaches the length of the strip.
The electric winch and tail wheel must be move when the mining face advances 10m long.
Technology Forum ,2009,78
Mineral Engineering Research ,2010,25(3):16-19.

This investigation contributes valuable insights to developing advanced MMCs for high-performance engineering applications, demonstrating that the forging technique facilitates fine grain refinement, enhancing the abovementioned properties.
The study highlights the promising potential of hybrid composites in meeting the demands of advanced engineering applications for materials with better mechanical and tribological characteristics.
International Journal of Advanced Research in Engineering and Technology (IJARET), Vol.14(5), 1-13
Composites Part B: Engineering, 194, 108040
Advances in Materials Science and Engineering, 2022, 1-10

Effects of Ca on Microstructure and Mechanical Properties of Mg-5.5Al-1.2Y Alloy Wenjian Liua, Quan-an Li, Zhi Chen, Xiaojie Song School of Materials Science and Engineering, Henan University of Science & Technology, Luoyang 471003, China aliuwenjian1986@126.com Key words: Ca, Mg-5.5Al-1.2Y alloy, Microstructure, Mechanical properties Abstract: The microstructure and mechanical properties of aged Mg-5.5Al-1.2Y magnesium alloy with Ca addition are investigated.
Phase analysis were performed by X-ray diffraction (D8 Advance) and energy dispersive spectroscopy (EDS).
Materials Science Forum, Vol 419-422(2003), p. 57-66 [2] S.J Guo, Q.Z Yue, J.Z Cui.
Rare Metal Meterials and engineering, Vol 33(2004), p. 561-565 (in Chinese) [4] X.M Zhang, Z.K Peng, J.M Chen, et al.

Effect of Humidity on the Properties of Cement Mortars with a Crystalline Additive Nikol Žižková1,a*, Lenka Nevřivová2,b and Matěj Lédl3,c 1-3Brno University of Technology, Faculty of Civil Engineering, Department of Technology of Building Materials and Components, Veveří 95, 602 00 Brno, Czech Republic azizkova.n@fce.vutbr.cz, bnevrivova.l@fce.vutbr.cz, cledl.m@fce.vutbr.cz Keywords: Crystalline additives, cement mortars, wet storage, durability.
Concrete holds a dominant position on the construction market, which is why there is constant effort to advance it [2].
Lédl, Durability of Cement Based Mortars Containing Crystalline Additives, Defect and Diffusion Forum, Engineering and Innovative Materials VI, Vol. 382, 2017, ISSN 1662-9507, pp. 246–253.

This study advances the field of materials science by providing insights into the complicated relationships between heat treatment techniques and the mechanical properties of nodular cast iron, paving the door for more advanced and specialized applications of this versatile material.
World Journal of Engineering 2020;17:127–33. https://doi.org/10.1108/WJE-11-2019-0327
Materials Science and Engineering: A 2023;868:144757. https://doi.org/10.1016/j.msea.2023.144757
Materials Science and Engineering: A 2022;836:142736. https://doi.org/10.1016/j.msea.2022.142736
Materials Science and Engineering: A 2023;862:144369. https://doi.org/10.1016/j.msea.2022.144369.

When FGM is composed of several phases with different thermal expansion coefficients, resulting thermal stresses usually have to be engineered to obtain the maximum performance of FGM components and coatings [5].
Richerson: Modern Ceramic Engineering (Marcel Dekker, Inc., NY, 1982), 400 pp
Forum Vol. 308-311 (1999), p.1035
"Advances in Hard Materials Production", EPMA, London (1999), p. 449

Geopolymer Grout Material TRIMURTININGRUM R.1,3,a*and JANUARTI Jaya Ekaputri2,3,b 1Civil Engineering, Universitas 17 Agustus 1945 Surabaya, Indonesia 2Civil Engineering Department, Institut Teknologi Sepuluh Nopember, Sukolilo, Surabaya, Indonesia 3Konsorsium Riset Geopolimer Indonesia (KORIGI), Lab Beton dan Bahan Bangunan, T Sipil- ITS, Surabaya, Indonesia aneno_s47@yahoo.com, bjanuarti@ce.its.ac.id Keywords: geopolymer, grout, workability, molar, superplasticizer Abstract.
Faculty of Engineering, Curtin University of Technology (2005) [3] Ekaputri, J.
Aji, “Light Weight Geopolymer Paste made with Sidoarjo Mud (Lusi)”, Materials Science Forum Vol. 803 (2015) pp 63-74
[11] Risdanareni, P., Januarti Jaya Ekaputri and Triwulan, “The Influence of Alkali Activator Concentration to Mechanical Properties of Geopolymer Concrete with Trass as a Filler”, Materials Science Forum Vol. 803 (2015) pp 125-134
Research Report GC-2 Faculty of Engineering, Curtin University of Technology, Perth, Australia (2006) [15] Cristelo, N., Soares, E., Rosa, I., Miranda, T., Oliveira, D.

In this paper, we report our advances in developing a resin solidification technique based on UV-light.
Society of Manufacturing Engineers, (2000)
AIAA SPACE and astronautics forum and exposition. (2017)
The International Journal of Advanced Manufacturing Technology (2019), p. 4123-4146.

Santhosh Kumar5,d, Saleh Suliman Saleh Elfallah6,e Alden abd alal Sahm7,f and Mobark Haider Faisal Helal8,g 1Department of Mechanical Engineering, Faculty of Mechanical Engineering, University of Sumer, Rifai, Iraq 2 Department of Mechanical Engineering and Material Sciences, Institute of Engineering Sciences, University of Dunaújváros, Tancsics Mihaly 1/A, Dunaújváros, Hungary 3Polymers and Petrochemicals Engineering Department, Basrah University for Oil and Gas, Basrah, Iraq 4Department of Mechanical Engineering, Faculty of Mechanical Engineering, University of Sumer, Rifai, Iraq 5School of Mechanical Engineering, SASTRA Deemed to be University, Tamil Nadu, India 6College of Mechanical Engineering Technology, Benghazi, Libya 7Faculty of Mechanical Engineering and Informatics, Institute of Materials Science and Technology, University of Miskolc, Miskolc, Hungary 8College of Agriculture, AL-Qasim Green University, Babel, Iraq a*alhafadhi@uniduna.hu, bmohammed.ahmed@buog.edu.iq
Advanced techniques such as X-ray diffraction (XRD) and neutron diffraction allow for direct measurement of residual stresses, offering empirical data to validate numerical models.
Despite significant advancements, further research is required to address a broader spectrum of initial conditions and to employ advanced FEA techniques capable of accurately modelling complex material behaviors.
[18] Alden Abd Al Al, S., Meilinger, Á., Gáspár, M., “Physical Heat Cycle Measurement of Resistance Spot Welding,” Key Engineering Materials, vol. 989, pp.65-75, 2024
A., Meilinger, Á., “Investigation of Resistance Spot Welded Joints Made on Ultra-high-Strength Steel Sheets,” In Vehicle and Automotive Engineering, vol.1, no.1 pp. 981-994, 2022

Effect of Perlite Composition on Compressive and Split Tensile Strength of Fly Ash-Based Geopolymer Concrete MUHAMMAD Sofyan1,a*, MUHAMMAD Aqwam Thariq Arifin1,b, AMRY Dasar2,c, IRMA Wirantina Kustanrika1,d 1Department of Civil Engineering, Faculty of Infrastructure and Regional Technology, Institut Teknologi PLN, Jakarta, Indonesia 2Department of Civil Engineering, Faculty Of Engineering, Universitas Sulawesi Barat, Indonesia amuhammadsofyan.itpln@gmail.com and m.sofyan@itpln.ac.id, bandroaqwam@gmail.com, camry.dasar@unsulbar.ac.id, dirmawirantina@itpln.ac.id Keywords: perlite, geopolymer concrete, compressive strength, split tensile strength.
Juenger, Advances in alter- native cementitious binders, Cem.
[10] Fakhruddin, External Shear Strengthening of RC Beams with Anchored Geopolymer Fiber Mortar Panel: An Experimental Study, Materials Science Forum vol 1091 (2023) 93-100
[11] Nur Fikri Ramdhani Arifin, The Utilization of Geopolymer Mortar as Permanent Formwork in Reinforced Concrete Beam, Materials Science Forum vol 1091 (2023) 143-149