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Department strictly complement the "Regulations of Quarantine Approval and Supervision about Imported Plants and Other Propagating Materials".
The imported tree seeds, seedlings and other propagating materials including fruits, flowers, herbs and seeds are required with strictly quarantine approval.
Journal of Anhui Agricultural Science Bulletin,no.12(2009), pp.144-145
Journal of Green world,no.07(2007), pp.69-70
Journal of Landscape, no.11(2011), pp.46-49

To evaluate the effects of PSH2C material for hybrid coupled shear wall applying high toughness materials, three specimens was manufactured on a series of two-third small scale steel coupling beams.
PSH2C materials lead to micro multiple cracks in panel region of steel coupling bean-PSH2C wall connection.
PSH2C materials lead to micro multiple cracks in panel region of steel coupling bean-PSH2C wall connection
Acknowledgement This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012-0685).
Canbolat et al.: ACI Structural Journal, Vol. 102(S17) (2005), p. 159-66

Chinese Journal of Rock Mechanics and Engineering, 2009, 28(1): 30-38.
(In Chinese) [2] LI Xin-ping,ZHANG Cheng-liang,et al.Chinese Journal of Rock Mechanics and Engineering, 2005, 24(Supp1): 4700-4704.
Chinese Journal of Rock Mechanics and Engineering, 2010, 29(3): 493-500.
Chinese Journal of Rock Mechanics and Engineering, 2010, 29(3): 513-519.
Engineering Journal of Wuhan University, 2008, 41(1): 67-70.

Elcombe 3,d 1 Department of Chemistry, Materials and Forensic Science, University of Technology, Sydney, PO Box 123, Broadway, NSW, Australia 2Materials Research Group, Curtin University of Technology, GPO Box U1987, Perth, WA, Australia 3 Bragg Institute, Australian Nuclear Science and Technology Organisation, PMB 1, Menai, NSW, Australia a c.kealley@iinet.net.au, bbesim.ben-nissan@uts.edu.au, ca.vanriessen@curtin.edu.au, d mme@ansto.gov.au Keywords: hydroxyapatite, carbon nanotubes, composite, bioceramic Abstract This paper reports development of a production method to produce a composite material that is biocompatible, with high mechanical strength and resilience.
Materials and Method The chemical precipitation conditions necessary for the production of single-phase synthetic HAp have been determined.
As mentioned in the Materials and Methods section, the commercial CNT material requires purification in order to remove the soot and graphite (Figure 2a).
These materials have then been hot isostatically pressed, and are currently undergoing mechanical property testing for Young's modulus, hardness, and nano-indentation testing a b Figure 4 SEM micrograph of the a) chemically reinforced, and b) physically reinforced composite material after heat treatment.
[2] Jarcho, M., Bolen, C.H., Thomas, M.B., Bobick, J., Kay, J.F. and Doremus, R.H. (1976), Hydroxlyapatite Synthesis and Characterization in Dense Polycrystalline Form, Journal of Materials Science, Vol 11, p2027-35.

This can be achieved by altering the surface composition with addition of ceramic materials.
The addition of ceramic materials to the surface can be done by application of high energy electron beam irradiation, laser surface alloying and friction stir processing methods.
Sellamuthu in: Application of a Simplified Simulation Method to the Determination of Arc Efficiency of Gas Tungsten Arc Welding (GTAW) and Experimental Validation, International Journal of Computational Materials Science and Surface Engineering Vol. 4 (2011) p. 265-280
Chandra, in: Studies on compositionally graded silicon carbide dispersed composite surface on mild steel developed by laser surface cladding , Journal of Materials Processing Technology Vol. 203 (2008), p. 505-512
Lee, in: Microstructure and hardness improvement of TiC/stainless steel surface composites fabricated by high-energy electron beam irradiation, Material Science and Engineering Vol.

Study on the microstructure and property of manganese steel composites strengthened by ceramic Jingpei Xie1,2,a, Changtao Zhang1, Wenyan Wang1,2,b and Aiqin Wang 1,2 1College of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China 2Henan Key Laboratory of Advanced Non-ferrous Metals, Luoyang 471003, China alby-zct@163.com, bwangwy1963@163.com Keywords: Composites, Ceramic, diffusional bond.
Experimental procedure Experimental material.
Journal of Materials Processing Technology Vol.153-154(2004), p.40 [2] P.Rama Rao, V.V.Kutumbarao.
Chinese Journal of Mechanical Engineering Vol. 7(2000), p83 [5]C.
Acta Material Vol. 47(1998), p115 [8]J.P.

The relationship about form factor and wear degree was investigated that limited to metal materials or organic materials as above, but study on concrete about it is still less.
Test method and materials Test materials.
Water Resources and Hydropower Engineering Vol.9(1985): p.17-19, in Chinese [4] J.J.Liu,S.Z,Li: principle of abrasion and abrasion-resistance on materials(Tsinghua University Press,Beijing,1993) in Chinese [5] P.A Swanson, R.
Klann:The measurement of particle shape and its effect on wear: ASLE Trans Vol. 2 (1985): p.225-230 [6] L.Zhang, Z.Y.Mao: The study of the relations between erosion rate and mechanical behavior of steel : Journal of Zhejiang University(Natural Science) Vol. 2 (1991): p.189-194, in Chinese [7] Liu.
Developments of Reserch on the Solid Particle Erosion of Materials : Journal of Materials Science and Engineering Vol.21 (2003):p. 307-312, inChinese

Table 1 Chemical reagents and materials Reagents/materials Purity Manufacturer BaCl2·2H2O A.R.
Kang: New Microwave Absorbing Materials (Science Press, Beijing 2006)
Zhang: Journal of Materials Science & Engineering, Vol. 28 (2010), p. 110 [4] M.A.
Danninger and E.Halwax: Journal of Magnetism and Magnetic Materials, Vol. 321 (2009) No.4, p.330 [6] Z.Y.
Liu: Journal of Magnetic Materials & Devices, Vol. 17, (1986), p.27 [7] H.F.

W.S Miller, J Bottema, A.J Wittebrood, P De Smet, A Haszler, A Vieregge, Materials Science and Engineering: A 280 (2000) 37-49
Sun, Rare Metal Materials and Engineering 46 (2017) 3760-3766
Iida, Materials Transactions 55 (2014) 779-787
Inal, Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 727 (2018) 11-28
Sarkar, Bulletin of Materials Science 34 (2011) 1113-1117

Influence of annealing treatment on precipitation of β-Mg17Al12 phase of AZ80 magnesium alloy Jumei Zhang 1,a, Zhihu Wang 2,b, Bailing Jiang 2, Zishan Chen 2, Libin Niu 1 1School of Materials Science and Engineering, Xian University of Science & Technology, Xian 710054,China; 2School of Materials Science and Engineering, Xian University of Technology, Xian 710048,China afeiyue-zjm@163.com, bzhihu_wang@163.com Keywords: AZ80 magnesium alloy; annealing; β-Mg17Al12 phase Abstract.
So more and more magnesium alloy products have been used in aviation, automobile and electron industries[1,2].It is well known that the AZ80 magnesium alloy is one of the famous commercial materials, and composed of α-Mg matrix and the divorced eutectic β-Mg17Al12 phase produced from the non-equilibrium crystallizing processes[3,4].
Experimental The material investigated in the present study had the following chemical composition (wt%):8 Al, 0.2 Zn,0.3 Mn, Mg bal.
Acknowledgements This work was financially supported by the National Science &Technology Pillar Program of China(2006BAE04B05-1), the Education Fund of Xian University of Science & Technology of China (200812) and the Doctor Foundation of Xian University of Science & Technology of China(A5030916).
(In Chinese) [8]X.L.Xiao, C.P.Luo, J.W.Liu, D.X.Wu, J.F.Nie and B.C.Muddle:The Chinese Journal of Nonferrous Metals.