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Experimental procedure Materials In this study, the hot dip Al-Zn-Si steel sheet and Al-Zn-Si-Re-Mg steel sheet was afforded by Jiangsu Linlong new materials CO., LTD in china.
Kang: Advanced Materials Research vol. 154-155(2011), p. 519-525 [2] T.
Marder: Progress in Materials Science vol. 45(2000), p. 191-271 [4] K.
Stergioudis: Materials Letters vol. 59(2005), p. 1619-1622 [8] X.
Ma: Advanced Materials Research vol. 79-82(2009), p. 731-734 [14] K.

Microstructure of the base material, M = 200x, Nital etch On the investigated ultrahigh strength steel, the HAZ tests were performed with a Gleeble 3500 physical simulator in the Institute of Materials Science and Technology at the University of Miskolc.
Lomozik, Physical Simulation of Weldability of Weldox 1300 Steel, Material Science Forum Vol. 76 (2013) pp. 551-555
Martikainen, Welding of Ultra High Strength Steels, Advanced Materials Research, Vol. 849, (2014) pp. 357-365
High-Strength Steels and Their Hardness Profiling, Strength of Materials 51, 2019: 3 pp. 490-499., 10 p
Sisodia, Improving the HAZ toughness of Q+T high strength steels by post weld heat treatment, IOP Conference Series, Materials Science and Engineering 426, Paper: 012012, 2018

Ramesh: Advanced Engineering Materials, Vol. 9 (2007), p. 355
Schoenung: Materials Science and Engineering: A, Vol. 527 (2009), p. 305
Schoenung: Materials Science and Engineering: A, Vol. 616, (2014) p. 35
Shi: Materials Science and Engineering, Vol. 81 (1986), p. 175
Song: Journal of Mechanical Science and Technology, Vo1. 27 (2013), p. 1071

Chen, Investigation of cleavage fracture initiation in notched specimens of a C-Mn steel with carbides and inclusions, Materials science and engineering A. 369 (2004) 181-191
Hu, Effect of microstructure on the cleavage fracture strength of low carbon Mn-Ni-Mo bainitic steels, Journal of nuclear materials 324 (2004) 33-40
Bompard, Prediction of cleavage fracture for a low-alloy steel in the ductile-to-brittle transition temperature range, Materials science and engineering A. 391 (2004) 188-197
Chen, Investigation of fracture initiation in notched specimens of a C-Mn steel with carbides and inclusions, Materials science and engineering A369 (2003) 181-191
Nobuhiro, Hidrogen embrittlement behaviors of ultrafine-grained 22 Mn-0.6C austenitic twinning induced plasticity steel, Journal of materials research 32 (2017)

Considering the economic density and population density are different around the hazard installation in production, the accidents of hazard installation with the same material and quantity may cause different results.
If there are many kinds of dangerous materials or accidents form for hazard installation, the most serious dangerous material or accidents form should be considered; While if there are many kinds of accident form for a kind of dangerous material, and their accident results differ greatly, the accident form with the most serious results should be considered
If a kind of dangerous material has many kinds of accident form, and their accident results differ greatly, the gross accident results should be evaluated according to the principle of average statistics.
References [1] WANG Xi-kui，WU Zong-zhi，SUN Meng，et al．Probeinto the Revision of Criteria for Major Hazard InstallationIdentification［J］．China Safety Science Journal，2007，17(1):166-170 [2] Notice on Regulating the Supervision and Management of Major Hazard Installation (No. 125 file of Safety Administration (2005)) [3] DUO Ying-quang，WU Zong-zhi，WEI Li-jun，et al．Studies for the Accidental Risk Ranking of Major Hazard Installations［J］．Journal of Safety Science and Technolo-gy，2006, 2(6):19-24 [4] Grading Standards of Major Hazard Installation (exposure draft) [5] :104-107YU Yang，YI Gao-xiang，GUAN Lei．Research on Data Sharing and Exchange for Information Management System of Major Hazard Installations［J］．Journal of Safety Science and Technology，2008，4(5):104-107

Materials and Methods Materials. β-CD and cholesterol standard were purchased from Sigma (Sigma grade: >99 % purity).
Szejtli, Cyclodextrins as food ingredients, Trends in Food Science & Technology. 15 (2004) 137–142 [3] A.
Denise, Method for reduction of cholesterol in egg materials, US International Patent. (1996) 5,484,624
Coppolino, Study of the inclusion complex of atenolol with β-cyclodextrins, Journal of Pharmaceutical and Biomedical Analysis. 23 (2000) 231–236
European Journal of Pharmaceutics and Biopharmaceutics, 46 (1998) 355-360

Numerical frame concrete material properties refer to table 1.
Science in China (Series G: Physics, Mechanics & Astronomy), 2006, (4)
Journal of Central South University of Technology, 2010, (4)
Journal of University of Science and Technology Beijing, 2008, (3)
Journal of University of Science and Technology Beijing, 2008, (6).

The final product can be made from various materials and parts can be used for several applications.
In rapid prototyping systems is possible to use many different materials.
Some of systems allows usage of more types of materials in one device.
In: MM Science Journal.
In: Applied Mechanics and Materials Vol. 2013, no. 282(2013), p. 1-6 2013, ISSN 1660-9336.

So, in this research, the attention will focus on aluminum alloys whose properties are superior to other materials.
Work Material.
International Journal of Engineering Science and Innovative Technology.3, 2 (2014) 294-298
Lobonţiu, Experimental research of effective cutting speed influence on surface roughness in ball end milling of C45 material, Academic Journal of Manufacturing Engineering. 11, 3 (2013) 28-33
Bănică, Experimental Research of Effective Cutting Speed Influence on Surface Roughness in Ball End Milling of C45 Material with Hardness 34 HRC, Applied Mechanics and Materials. 657 (2014) 53-57.

The advantage of PMMA materials is its transparency which can make crack fracture patterns easily observe.
PMMA materials are transparent and the cracks developed under blasting loads can be observed easily, whereas, using rock material, it is difficult to observe the cracks induced by blasting loads.
Zhu: Advanced Materials Research Vol. 230-232 (2011), p. 251-255
Zhu: Advanced Materials Research Vol. 230-232 (2011), p. 278-282
Zhu: Advanced Materials Research Vol. 225-226 (2011), p. 933-936