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., Lanzhou 730050 China 2Qinghai institute of Salt Lakes, Chinese Academy of Sciences，Xining 810008, China 3Nanjing University of Aeronautics and Astronautics, Department of Civil Engineering, Nanjing 210016, China 4 Qinghai Scientific Institute of Architectural and Build Materials, Xining 810008, China aQiaohx7706@163.com, bLy_042@163.com, czhoumr@lut.com, dYuhongfa@hotmail.com elylut86@gmail.com Keywords: Concentration; Magnesium Oxychloride Cement; Concrete; Mixture proportion; Compressive strength; Micro-mechanism.
Raw materials and experimental procedure 1.1.
Raw materials Light-burned magnesium(MgCl2·6H2O), yellow powder, produced in Geermu, Qinghai was used in the experiments, and the main composition is listed in table 1.
[3] Jin Ping,Yu Hui Hu Keyou, Zhou Bo, Improvement Of Water Resistance Of Magnesium Oxychloride Cementing Material For Shotcreting[J], Journal Of China Coal Society, 1998(1):102-106
[4] Yu Hongfa, Research on Long-term Strength and Water-resistance of MgO-SF-FA-MgCl2-H2O System Cementitious Materials[J], Journal of The Chinese Ceramic Society, 2000(12):33-37

Numerical Simulation for Low Pressure Die Casting of Al-alloy Motor Enclosure and Technology Improvement Guofa MI a , Xiangyu LIU, Kuangfei WANG, Jitai NIU School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000, China a peter@hpu.edu.cn Keywords: Al-alloy Motor Enclosure; Low Pressure Die Casting; Numerical Simulation; Technology Improvement Abstract.
Raise of the problem A motor enclosure was fabricated by LPDC process and the material is ZL102.
Recent developments," Foundry Trade Journal, 163 (3399) (1989), 3. 3 Plume A.
W., "Low-pressure Die Casting - A practical Assessment," Foundry Trade Journal International, 5 (16) (1982), 14-16, 18. 4 Kreziak G., Rigaut C., Santarini M., "Low pressure permanent mould process simulation of a thin wall aluminum casting," Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, A173 (1-2) (1993), 255-259. 5 Wang T. et al, "Simulation of Low Pressure Casting Process for Thin-wall Magnesium Alloy Casting," Foundry, 53 (5) (2004), 396-398.
(in Chinese) 6 Zhang B. et al, "Casting defects in low-pressure die-cast aluminum alloy wheels," JOM, 57 (11) (2005), 36-43. 7 Srinivasan A. et al, "Low-pressure casting of LM25 (Al-7Si-0.3 Mg) aluminium alloy," Materials and Manufacturing Processes, 20 (2) (2005), 221-230. 8 Tsukuda Makoto, Takada Kumio, "Water Simulation of Oxide Formation in Low Pressure Die Casting Process," Journal of Japan Institute of Light Metals, 29 (1) (1979), 9-15. 9 Solov'ev E.

Materials and Methods Culture medium(g/L). 20.0 glucose, 1.0 tryptone, 3.0 peptone, 2.0 beef extract, 1.0 yeast extract, 3.0 NaCl, 1.0 K2HPO4, 0.5 L-Cysteine, 0.5 mL resazurin(0.2% ).
[3] Nanqi Ren, Guo-xiang Zheng and Yong-feng Li, edited by Journal of Harbin Institute of Technology (New Series)(2006), p. 635
[5] Yong-feng Li, Guo-xiang Zheng and ZADSAR Mamyam, edited by Journal of Harbin University of Commerce (Natural Sciences Edition (New Series)(2005), p. 147
[7] Yong-feng Li, Nanqi Ren and Ying Chen, edited by Journal of Harbin Institute of Technology(2004) , p.1589-1592
[9] Yong-feng Li, Nanqi Ren and Xingzu Wang, edited by Journal of Harbin University of Commerce (Natural Sciences Edition)(2006), p. 682

If substituting equation (4) and ψφ ψφ θθ ε ,0 , )(cot d−= into (3), we obtain: ψ θπ θ ν σ ψφ φ 2 , 0 sin 2 180 cot )1(2 ∂ ∂       + −= E (5) where 0θ is the diffraction angle from stress-free materials.
Suzuki: Journal of Magnetics Society of Japan Vol. 25(2001) p. 226 [2] T.
Miyagawa: Japanese Journal of Applied Phys Vol. 5(2005) p. 3037 [3] T.
Goto: Materials Transactions Vol.45 (l0) (2004) p. 3023 [6] I.
Yamashita: Journal of Health Science, 46(6), 2000, p426.

Differences in Characteristic Properties of Silica Sands from Neighbouring Deposits Martina Bašistová1,a*, Petr Lichý1,b 1Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17.
Materials and Methods Materials.
Vaniya, Use of Silica Sand as Fine Material in Concrete, International Journal for Scientific Research & Development. 3 (2015) 745-751
Liang, Utilization of desert sand in the production of sustainable cement-based materials: A critical review, Construction and Building Materials. 327 (2022) 127014. https://doi.org/10.1016/j.conbuildmat.2022.127014
Lu, Stress-Induced Β→ Α-Cristobalite Phase Transformation in (Na2O+ Al2O3)-codoped Silica, Materials Science and Engineering: A. 328 (2002) 267-276. https://doi.org/10.1016/S0921-5093(01)01703-8

The experimental results were shown that the POB fuel yielded at 84.54% from using 400 g. of raw materials.
Summary The main aim of this study was to improve palm biodiesel fuel by repeated-distillation process and using nano-ZnO additive due to its friendly nano-material.
Journal of Applied Sciences 2009;9: 3166-3170
Triratanasirichai., Effect of metalloid compound and bio-solution additives on biodiesel engine performance and exhaust emissions, American Journal of Applied Sciences 2013;10 (10): pp. 1201-1213
Munyentwali, Biodiesel Production from Unrefined Palm Oil on Pilot Plant Scale, International Journal of Sustainable and Green Energy, 2015, Vol. 4, No. 1, pp. 11-21

Journal of Manufacturing and Materials Processing, 2023. 7(2): p. 61
Journal of materials engineering and performance, 2014. 23: p. 506-517
Journal of Mechanical Science and Technology, 2021. 35: p. 4353-4362
Materials Science and Engineering: A, 2007. 460: p. 314-323
Materials Today: Proceedings, 2022. 50: p. 1043-1047

Fatigue failure is unpredictable and could cause severe damage to the material.
Experimental Procedure Material Selection.
Summary of welding parameters for GMAW Detail Description Material .
Wei, Fatigue behavior of high-strength steel S135 under coupling multi-factor in complex environments, Materials Science and Engineering. 724 (2017) 385-402
Muda, effect of welding heat input on microstructure and mechanical properties at coarse grain heat affected zone of abs grade a steel, ARPN Journal of Engineering and Applied Sciences. 10 (2015)

Aggregate accounted for a larger proportion of the material, is the object of cementing material cementation, its physical and mechanical properties have an important effect on the properties of similar materials.
Cement is the dominant nature of similar material, the mechanical properties of the material mechanical properties similar to a great extent, cementing materials commonly used in the main gypsum, cement, lime, calcium carbonate, kaolin, paraffin, sawdust, etc..
Journal of china university of mining & technology,1999,28(5):442-460
Journal of jiaozuo institute of technology,2000,(4)
Xi'an university of science & technology journal,2000,20(3):214-216

Introduction Grinding is a costly machining process to finish difficult-to-machine materials with great precision [1-4].
[2] Tran Thi Hong et al., “Effect of Dressing Parameters on Material Removal Rate when Surface Grinding SKD11 Tool Steel”, Materials Science Forum Vol. 1020, pp.60-67 (2021)
[4] Tran Thi Hong et al., Luu Anh Tung, “Optimizing Dressing Conditions for Minimum Flatness Tolerance when Grinding SKD11 Tool Steel, Structural and Smart Materials IV, pp. 83-90, (2021)
Mills, “A Grinding Power Model for Selection of Dressing and Grinding Conditions”, Journal of Manufacturing Science and Engineering, Vol. 121, pp.632-637, (1999)
Series: Materials Science and Engineering 542 (2019)