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The porosity (void caused by technological reasons) in engineering materials always decrease their mechanical characteristics and usually affects the deterioration of the functional mechanical characteristics of the finished products.
Previous tests elaborated by the authors [2,18] show that such „hydrogen” models are represented in other systems such as Calcosoft Porosity and Procast Advance Porosity Module.
Popielarski: Archives of Foundry Engineering Vol.13 (2013), p. 45
Prunier: Defect Dif Forum Vols. 326-328 (2012), p. 612
Popielarski: Defect and Diffusion Forum Vols. 334-335 (2013), p. 314

Materials Science Forum. 931 (2018) 232-237
IOP Conference Series: Materials Science and Engineering, 463 (2018) https://doi.org/10.1088/1757-899X/463/3/032012
Fangping Liu, Jianting Zhou, Experimental Research on Fatigue Damage of Reinforced Concrete Rectangular Beam, KSCE Journal of Civil Engineering. 9 (2018) 3512-3523
A Comparative Experimental Study on the Flexural Behavior of High-Strength Fiber-Reinforced Concrete and High-Strength Concrete Beams, Advances in Materials Science and Engineering №7390798 (2018)
Strength of reinforced concrete beams of high-performance concrete and fiber reinforced concrete, Bulletin of Civil Engineering. 1 (2018) 90-100

Acta Tehnica Corviniensis-Bulletin of Engineering. 7 (2014) 57-62 [4] L.H.
International Journal of Advance Manufacturing Technology. 55 (2011) 23-34
Engineering Optimization, 14(1988) 1-26 [9] D.R.
International Journal of Scientific & Engineering Research. 5 (2014) 371-374
Chudasama, Solidification Analysis and Optimization Using Pro-Cast, International Journal of Research in Modern Engineering and Emerging Technology, 1 (2013) 9-19

Oxygen pipeline safety in use and the oxygen pipe major job, you must develop a detailed work plan in advance (including processes, methods, steps, time, location, division, scope, responsibility, care, and so confirm), approved by the competent authorities, implementation, before implementation.
References [1] The First Integrated Enterprise Risk Management Forum 2006 Opened in Beijing.
The attitude of civil engineering students towards health and safety risk management: a case study.
European Journal of Engineering Education, 2008,10
Tian, a Research on the Methods of Forecasting and Controlling for Air Compressor. 2010 International Conference on Electrical and Control Engineering, 2010, 230-243.

[3] Muhammad Bilal Waris, Takashi Ishihara and Muhammad Waheed Sarwar, in: Galloping response prediction of ice-accreted transmission lines, The 4th International Conference on Advances in Wind and Structures (2008)
[4] Xin Wang, Wen-Juan Lou, in: Numerical Approach to Galloping of Conductor, The Seventh Asia-Pacific Conference on Wind Engineering (2009 )
Journal of Wind Engineering and Industrial Aerodynamics (2003)
Engineering Mechanics (2010) (in Chinese)
Abdel Raouf, M.Galal and E.E.Khalilj, in: Heat Transfer Past a Single Cylinder: Numerical Investigations, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition (Orlando) AIAA 2010-1358.

The optimized samples were then subjected to biodegradability and cytotoxicity tests to evaluate their suitability for use as tissue engineering scaffolds.
Tests were performed in accordance with ISO 23242:2020 [17], Fine ceramics (advanced ceramics, advanced technical ceramics).
Bandyopadhyay, Bone tissue engineering using 3D printing.
Grijpma, A review on stereolithography and its applications in biomedical engineering, Biomat. 31(24) (2010) 6121-6130.
Forum. 825-826 (2015) 75-81.

Abdullahc Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environments, UNiversiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia.
Introduction Despite of its poor tribological properties (low hardness and low resistance to friction wear and abrasion) and a poor corrosion resistance, aluminium has become potential material in the automotive lightweight engineering.
Bull: Materials Science Forum.
Yumoto: Key factors for dense copper coating by HVOF spraying, Thermal Spray 2003, Advancing the Science & Applying the Technology, ASM International, USA (2003)
Phule: The science and engineering of materials, 4th ed., Brooks/Cole- Thomson Learning, USA (2003)

The translucent composition and stage arrangement of the experiments were verified by a superior-resolution Bruker Advance D8 X-RD diffractometer.
Nguyen, A review of materials, fabrication methods, and strategies used to enhance bone regeneration in engineered bone tissues, J.
Zhuo, Biological Evaluation of Porous Chitosan/collagen Scaffolds for Periodontal Tissue Engineering, 2nd International Conference on Bioinformatics and Biomedical Engineering. (2008) 897-900
Osterud, Impact of processing on nutritional quality of marine food items, Forum Nutr. 56 (2003) 337-340
Sukla, Extraction and characterization of biocompatible hydroxyapatite from fresh water fish scales for tissue engineering scaffold, Bioprocess Biosyst.

Compression Deformation Behavior of AZ91D Magnesium Alloy at Elevated Temperature CHAI Yuesheng1,2* CHEN Yong-zhe1,2 LIU Wen-feng1,2 SUN Gang1,2 1 Shanxi Magnesium and Magnesium alloy Engineer Technology Research Center 2 School of Materials Scienceand Engineering, Taiyuan university of science and technology Taiyuan Shanxi China 030024 Cys5912@126.com, chenyz126@163.com, lwfyx@163.com, sxmagnesium@163.com Keywords: Magnesium alloy; Hot compression deformation; Deformation activation energy Abstract: Hot compression tests of AZ91D magnesium alloy were performed on Gleeble1500 ranging from 0.001 to 1 s-1 and deformation temperature ranging from 200 to 400℃.
Thus, it is viewed as the “one of the most promising structural engineering materials in the 21th century”[1-4].
In this work, it was investigated that the relationship of flow stress with the temperature and strain rate of AZ91D magnesium alloys under hot compression conditions, as is to provide the experimental date for the advancing plastic processing of magnesium alloys. 2 Experimental The chemical composition of experimental materials is shown in Table 1.
Material Science forum,2000,350/351:159-170

In case of different vehicles, the main joining technology is welding, the conventional and advanced methods of fusion and pressure welding.
Laurito et al., Microstructural effects on fatigue crack growth behavior of a microalloyed steel, Procedia Engineering, 2 (2010) 1915–1925
Balogh, GMAW experiments for advanced (Q+T) high strength steels, Production Processes and Systems, Publication of the University of Miskolc, 6 (2013) No. 1, 9-24
Varbai, TIG welding of advanced high strength sheets, Proceedings of the 4th International Scientific Conference on Advances in Mechanical Engineering (ISCAME 2016), 13-15 October, 2016, Debrecen, Hungary, University of Debrecen, (2016) 313-318
Erdogan, A critical analysis of crack propagation laws, Journal of Basic Engineering, Transactions of the ASME, (1963) 528-534