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The production of modern large-scale prebaked aluminum electrolytic cell is usually used to cover process layer of alumina raw materials in the top of anode to reduce the anode oxidation.
However, the alumina raw material protection layer is loose, big pores, uneven, and the anode side are still exposed in CO2reacted by electrode reaction, reducing the anode caused by anodic oxidation of limited excessive consumption.
Journal of Northeastern University(Natural Science), 2012,33(7):1009-1012
Chinese Journal of Pesticide Science, 2009, 11(3):381-387

Preparation of the Al2O3/3Y-TZP ceramics by microwave sintering under low temperature Junming Luo 1,a, Jilin Xu1,b ,Hongyan Zuo1,c, and Jun Huang1,d 1School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang China aljmniat@126.com, bjlxu@nchu.edu.cn, chyzuo@nchu.edu.cn and dhuangjun@nchu.edu.cn Keywords: Coprecipitation process, Al2O3/3Y-TZP, Microwave sintering, Nanometer powders Abstract.
Introduction Y-TZP ceramics, as one of the best comprehensive properties of zirconia materials, have been widely applied in the fields of chemical engineering, machinery, communication and aerospace [1].
At the same time, the Y-TZP ceramics show relative low the strength and roughness and low temperature properties, which seriously limits the further application of the materials [3-5].
Therefore, the microwave sintering possesses the advantages of low sintering temperature and short holding time, which is beneficial to obtain the fine grains and improve the strength, plasticity and roughness of the ceramic materials [9].
Huang: Journal of Fuzhou University (Natural Science Edition).

Introduction Controlled drug-delivery systems (DDSs) are one of the most promising applications for human health care and represent an ever-evolving field for biomedical materials science.
The most well known and common mesoporous silica materials include MCM-41, MCM-48 and SBA-15, which present different pore sizes (2 to 10 nm).
Functionalized mesoporous silica materials for controlled drug delivery[J].
Journal of Microencapsulation, 2013, 30(2): 173-180
Chemistry of materials, 2001, 13(2): 258-263.

It is material basis to social development.
Water resources should be conserved according to law and science.
We must totally utilize various high and new technologies, life and new materials according to conditions in all aspects such as hydrology, water resources monitoring, evaluation, planning, management, development, utilization, conservation, protection and flood prevention.
Agricultural water resources reasonable use study in SongShan country of Chifeng city [J] journal of Chifeng institute: natural science edition, Vol. 22 (2006), p. 41-42 [4] Xiqin Wang, lilly.
Journal of arid zone resources and environment, Vol. 21 (2007), p. 79-83 [5] Xinmin Xie, Wenjun Zhao, YuanSheng Pei, etc.

They are applied in fluorescent probe, luminescence materials, life science and technology prospects.
Acknowledgment The work is supported by TianJin Natural Science Foundation (NO.09JCYBJC02700) References [1] Chen Ye, Cai Weimin.
Preparation and Fluorescence Properties of Rare Earth (Eu3+ and Ga3+) Complexes with Benzoic Acid and 1,10-Phenanthroline,J,Chinses Journal of Rare Metals,2005, 29（6）:865~870 [2] BAO Jinrong, ZHU Xiaowei, Wang Zhiliang.
Journal ofNatural Science of Hunan Nor malUniversity, 2008, 31 (1): 82~84
Beijing: Science Press, 2000.224-1411 [6] PAN Yuanfeng, XIAO Huining, HE Beihai.

Preparation and Characterization of Diatomite Supported Cu-doped TiO2 Photocatalysts Yanxi Deng*1,a, Chuanchuan Liu2,b, Guang Yangc 1School of Materials Science and Technology, China University of Geosciences, Xueyuan Road, Haidian District, Beijing, 100083, P.R.China 2Tianjin Jingwei Electric Wire Co., Ltd., Chuangye Road, Jinnan District, Tianjin, 300353, P.R.China adengyx@cugb.edu.cn mail, blcc860108@163.com, c yangguang228@126.com Keywords: Cu-doped TiO2 nanoparticles, Diatomite; Visible light; Photocatalytic activity; Methylene blue Abstract.
The band gap energy of material can be calculated according to the equation .
Journal of rare earths, 24 (2006), p. 309-313 [9] X.W Cheng, X.J Yua, Z.P Xing.
Journal of Physics and Chemistry of Solids, 74 (2013), p. 924–928 [11] H.
Applied Surface Science, 258 (2012), p.6136-6141 [16] B.

Introduction Soil is the oldest engineering material applied in almost every kinds of engineering construction, such as building construction, road and bridge, side slope stabilization, cavern excavation.
Based on engineering actual situation, the calculation region shall be made up of various materials with thermal parameters and soil characteristic parameters shown in table 1.
Jason, "A model for freeze-thaw cycling of the South Pole Station exterior sheathing", Cold Reions Sciences and Technology, vol 52, 2008, p.254-261
Lewis, "Coupling temperature to a double-porosity model of deformable porous media", International Journal for Numerical Methods in Engineering, vol 49, 2000, p.421-438
Roegiers, "Fluid flow and heat flow in deformable fractured porous media", International Journal of Engineering Science, vol 32, 1994, p.1615-1633

The sol-gel method don’t obtain pure nano-copper oxide, so the material has poor desulfurization activity.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (51108144), Natural Science Foundation of Heilongjiang Province of China (E201146) and Provincial Students Innovation and Entrepreneurship training program of Harbin University of Science and Technology (201210214015).
Critical Reviews in Environmental Science and Technology 41(10):915-950(2011)
Chinese Journal of Inorganic Chemistry 26(2):115-118(2006)
Chinese Journal of Environmental Engineering 5(3): 627-630(2011)

And the foreign research materials [5- 7] record and narrate the forming force at the time of the crooked shaping of metal material.
Material test data is the nominal stress and strain, however, the material model needs the true stress and strain.
Journal of Northeastern University (Natural Science),1996,17( 1) : 94～98
Journal of shanghai institute of technology, 2004,4(2):91～93.
Journal of Jiamusi university (natural science edition), 2008,26(6): 785～788.

Therefore, the supply of mineral raw materials to society depends also on the constraints imposed by land use planning policies and practices.
Wellmer, ‘Consumption and Use of Non-Renewable Mineral and Energy Raw Materials from an Economic Geology Point of View’, Sustainability, vol. 2, no. 5, pp. 1408–1430, 2010
Henckens, ‘Managing raw materials scarcity : safeguarding the availability of geologically scarce mineral resources’, Utrecht University, 2016
-W. and Becker-Platen J., ‘Sustainable development and the exploitation of mineral and energy resources: a review’, International Journal of Earth Sciences, vol. 91, no. 5, pp. 723–745, 2002
[14] European Commission, Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Commitee of the Regions: Making raw materials available for Europe’s future wellbeing - Proposal for a European Innovation Partnership on Raw Materials. 2012