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Experimental material and procedure Chemicals.
The microorganism Escherichia coli BL21 (DE3) and plasmid pET-28a were gifted from Professor Zhang (College of Life Science in Anhui University).
Acknowledgements This work was financially supported by Natural Science Foundation of Hubei province of China (2009CAD006).
Lü, M.Wu and et al: Journal of Huazhong University of Science and Technology (Nature Science Edition) Vol. 38 (2010), p.112-115.
Guan and et al: Journal of Huazhong University of Science and Technology (Nature Science Edition) Vol. 39 (2011), p. 72-75.

Key Engineering Materials Vol. 925 1827[5] F.
In: Journal of Materials Science 42-16 (2017), pp. 6854-6861
"Electrostatic and magnetostatic properties of random materials".
In: Mechanics of Materials 137 (2019), p. 103098
Key Engineering Materials Vol. 925 1829

When selecting metallic materials used for tribological data set compatibility contacting elements.
Journal of Friction and Wear, 2013, Vol. 34, No. 3, Allerton Press, Inc., p. 208–213
Bushe, Tribo-Engineering Materials, Practical Tribology, World Experience, Series International Engineering Encyclopedia, Vol. 1, Science & Technique Centre, 1994, p. 21-29
Key Engineering Materials Vol. 581 (2014) (2014) Trans Tech Publications, p. 62-67 [9] Alexey Vereschaka.
Advanced Materials Research Vols. 712-715 (2013) Trans Tech Publications, p. 347-351

Magnesium oxychloride cement is an advanced inorganic materials whicn less weight and higher strength.
HENAN SCIENCE, 6 (2007)1044-1046.
(Chinese material management profession standard) [6] State Construction Materials Industry Administration of the P.
China.Raw materials for magnesia cement (JC/T449-2000).
(Chinese building materials profession standard) [7] SORELL C A, ARMSTRONG C R.

Experimental methods Industrial Sn-0.5Cu solder ingots were used in the experiments to study commercial purity materials.
Dahle, Microstructure formation in Sn-Cu-Ni solder alloys, Electronic Materials Solidification, JOM (2011) 52-55
Chiu, Phase Diagrams of Pb-Free Solders and their Related Materials Systems, J Mater Sci: Mater Electron 18 (2007) 19–37
Lee, An investigation of microstructure and microhardness of Sn-Cu and Sn-Ag solders as functions of alloy composition and cooling rate, Journal of Electronic Materials 38 (2009) 257-265
Gácsi, Investigation of intermetallic phases formed in lead-free solders, Materials Science Forum Vol. 812 (2015) 357-362.

Although it comes from the summary and ascension of natural sciences research, the formed thinking modes and methodology also produces a great impact on politics, economy, culture and other fields of social sciences.
It is called “dissipative structure”, because this system needs to dissipate certain energy and material to maintain its own stability and order.
Therefore, in order to keep orderly, the system will have to be open and exchange material, energy and information with the outside world.
[2] Macintosh R, Maclean D: Strategic Management Journal, 1999(20): 297- 316
[6] Hengxin HE, Yongcheng Wang: Science Economy Society, 1995(1)：53-55, in Chinese

Spieck: State-ofthe-Art and Future Trends in Multidisciplinary Design Optimization, 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Waikiki Honolulu, Hawaii, 2007 [3] J.T.
Welo: A design method for prediction of dimensions of rectangular hollow sections formed in stretch bending, Journal of Materials Processing Technology, Vol. 128 No. 1-3, pp 48-66, 2002 [7] B.L.
Kleiner: Seam Weld Positioning for Composite Extrusion, Advanced Materials Research: Flexible Manufacture of Light Weight Frame Structures, Vol. 10, pp 100- 110, 2006 [10] S.H.
Baier: Qualitative Knowledge and Manufacturing Considerations in Multidisciplinary Structural Optimization of Hybrid Material Structures, Advanced Materials Research, Vol. 10, pp 143-152, 2006 [14] B.
Kleiner: Three-Dimensional Curved Profile Extrusion - First Results on the Influence of Gravity, Advanced Materials Research: Flexible Manufacture of Lightweight Frame Structures, Vol. 10, pp 5-12, 2006 [21] D.

Response of reed canary grass to salt stress during seed germination and vegetative stage 1 Lili Cong 1,2 a, Xinquan Zhang2,b, Yongxiang Li2,c, Kaikai Cheng1,d, Yunwei Zhang1,e* 1Institute of Grassland Science, China Agricultural University, Beijing 100193, China 2Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Ya’an 625014, China acongli1985610@126.com bzhangxq@sicau.edu.cn cyongxianglee81223@hotmail.com dchengkai20111@163.com ezywei@126.com Key words: Salt stress; Reed canary grass; Germination; Antioxidative enzymes; Electrolyte leakage Abstract: The aim of this experiment was to determine the responses of reed canary grass (Phalaris arundinacea L.) to salt stress during germination and vegetative growth.
Materials and methods Seeds of reed canary grass (Zxy06p-2449 and Zxy06p-2653) origin from Russia, respectively, and the seeds of reed canary were obtained from Gao hongwen group (Institute of Animal Sciences, Chinese Academy of Agricultural Sciences).
On the other hand, CAT activities of both materials in 10 d were found to be slightly (P<0.05) up-regulated in response to salt stress, but down-regulated after long-term(15d) treatment .
The results of two materials were very similar, Increasing magnitude of salinity stress increased the amount of electrolyte leakage from the leaves of Zxy06p-2449 and Zxy06p-2653.
[13] W.W Nie ,Y.L Zhang, X.Z Ren: Journal of Inner Mongolia University for Nationalities.

Aref’eva, Changes in the structure of steel during quenching in a magnetic field, Materials Science Forum. 989 (2020) 79-84
Aref’eva, Martensite nucleation under conditions of austenite superplasticity and external magnetic field, IOP Conference Series: Materials Science and Engineering. 969 (2020) 012009
Fainshtein, Dependence of the probability of formation of laves phases of various crystal structures on the density of stacking faults, Soviet Physics Journal. 14 (1971) 1074-1079
Estrin, Martensitic Transformations, Cambridge International Science Publishing, 2014
Goldman, Handbook of Modern Ferromagnetic Materials, Publisher Springer Science & Business Media, 2012.

Mauritz: Materials Science and Engineering Vol.
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