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And many reactive materials have been developed and used in PRB for the removal of contaminants.
And high pure graphite electrode materials were used to avoid the entry of new pollutants. 1.2 Materials and reagents The electrolysis tank was filled by the original soil sample which was eliminated plant rhizome, thick chipping, break stone and etc., and was fully aired, crushed and dried at 105℃.
Journal of Agro-Environment Science, vol.26(2007), p. 443-448, (in Chinese)
Tech, 32(1998), p. 2308-2316 [14] Hu Hongtao, Zhang Xiaoliang, Liu Yunlong: Journal of Agro-Environment Science, vol. 25(2006), p. 661-664 (in Chinese)
[15] Alam M G M, Tokunaga S, Maekawa T: Chemosphere, 43(2001), p. 1035-1041 [16] Tampouris S, Papassiopi N I, Paspaliaris I: Journal of Hazardous Materials, 84(2001), p. 297-319

Monolithic porous materials fabricated by dealloying method in Cu-Fe-Co and Cu-Fe-Ni systems Y.
Wang1* Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361005, China Corresponding author: Cuiping Wang, E-mail: wangcp@xmu.edu.cn Tel: +86-592-2180606; Fax: +86-592-2187966 Keywords: Porous materials, Dealloying, Cu-Fe-Co alloy, Cu-Fe-Ni alloy Abstract: New Cu–Fe-based ternary systems have been developed to fabricate monolithic porous materials through electrochemical dealloying process in a 1.84 mol/L H2SO4 solution.
Pores tend to be distributed irregularly and isotropic in materials made by those methods [6].
To a certain extent, the use of porous films and ribbons was limited since the mechanical property was much poorer than thicker materials such as monolithic materials.
Bian, The Journal of Physical Chemistry C, 113 (2009) 6694-6698

Study on an air filter material immobilized with bio-antimicrobials Jingquan Yanga, Zheng Wangb, Jinhui Wu, Limei Hao, Tao Tian, Song Lin Institute of medical equipment, Academy of military medical science, Tianjin, China.
Materials and methods Materials and apparatus Materials: Control sample: fiberglass high efficiency air filter media(HEPA), supplied by China Chongqing Yangtze Special Paper Factory; Test sample: antibacterial air filter media, self-made; Adhesive: Acrylate; Bio-antimicrobial: ε-Polylysine and Natamycin; all commercially obtained; Strains: we choose Staphylococcus aureus (ATCC 6538), Escherichia coli (8099) and Aspergillus niger (ATCC 6275) represent Gram-positive bacteria, Gram-negative bacteria and Fungi respectively; all supplied by Institute of Microbiology and Epidemiology, Academy of Military Medical Science, China.
Dai, et al : Chinese journal of disinfection, Vol. 22(2005),p.156.
Wu: Chinese journal of disinfection, Vol.25(2008),p.351-354.
Standard test method for evaluating the bacterial filtration efficiency(BFE) of medical face mask materials, using a biological aerosol of Staphylococcus aureus

For the structure design of composite material, material selection optimization (MSO) could do with the materials conversion by optimization, which includes conversion of composite material and non-composite materials; conversion of different kinds of composite material.
Calculation of vibratory power transmission of complex floating raft system by FEM, JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA, vol 38(2008), pp516-523.
Materials selection combined with optimal structural design: concept and some results, Materials and Design, vol23 (2002), pp459-470
Materials selection for an automotive structure by integrating structural optimization with environmental impact assessment, Materials and Design, vol25 (2002), pp 689-698
Mapping function method for hybrid steel-composite materials-structure selection optimization design, CHINESE JOURNAL OF APPLIED MECHANICS, vol 28 (2011), pp29-34.

Experiment Experiment Materials.
[2] Jianhua Zhu: Journal of Xuzhou Institute of Technology(Natural Sciences Edition) Vol. 27 (2012), p. 5(in Chinese)
[4] Wenchang Zhuang and Yuxiao Wang : Journal of Xuzhou Institute of Technology(Natural Sciences Edition) Vol. 27 (2012), p. 44(in Chinese)
[5] Qingyin Wu, Xia Tong and Xuefei Wu : Journal of Xuzhou Institute of Technology(Natural Sciences Edition) Vol. 26 (2012), p. 1(in Chinese)
[6] Zhiyong Liu, Yan Li and Yong Li : Journal of Xuzhou Institute of Technology(Natural Sciences Edition) Vol. 26 (2012), p. 9(in Chinese).

Therefore, efficient and practical oil-absorbing materials was needed.
However, rubber foaming materials as oil-absorbing materials was a few[4].
Experimental Preparation of EPDM foaming materials a) Compounding and melting of sample.
Zhang: Journal of Applied Polymer Science, Vol. 105 (2007), p. 3462 [4].
Wang, and J.Jin: Journal of Jilin University (Engineering and Technology Edition), Vol. 39 (2009), p. 56

Preparation of Bio-material Liquid Film and Its Function of Reducing Soil Water Evaporation Dan Li 1, Jing Lv1, Wuzhong Ni1* 1 College of Environmental and Resource Sciences, Zhejiang Provincial Key Lab of Subtropical Soil Science and Plant Nutrition, Zhejiang University, Hangzhou, 310029, P.
Materials and Methods In the preparation of liquid films, kelp as a bio-material and polyvinyl alcohol (PA) were used.
Mashhadi- Akbar-Boojar: American Journal of Agricultural and Biological Sciences, Vol. 4 (2009) No.3, p.215
Li: Journal of Arid Environments, Vol. 75 (2011) No.5, p.432
Zhai: Journal of Biomedical Engineering (in Chinese), Vol. 25 (2008) No.1, p.139

Consequently, during operation, the materials of individual components degrade.
Grant, Aerospace Materials, IOP Publishing Ltd., Bristol (2001)
Progress in Materials Science, 5 (2007) 1091–1173
Li., Influence of Dealloying Solution on the Microstructure of Monolithic Nanoporous Copper through Chemical Dealloying of Al 30 at.% Cu Alloy, International Journal of Electrochemical Science, 7 (2014)7993-8006
Botef, Cold gas dynamic spraying of WC-Ni cemented carbide coatings, at 10th International Conference on the Science of Hard Materials, Mexico, (2014).

The same significant variation of 222Rn concentrations also could be observed with different content of moisture in building materials and environment (Tufail, 1992).
This is due to another factor that influences 222Rn concentration at BK 8 such as building materials itself.
S and Hussin, H, Potential of Fabricated Light Foamed Concrete in Reducing Radon from Building Material, Materials Science Forum. 840 (2016) 427-431
[9] Kaur, K, Laxmi, V and Sahota, H.S, Variation of Radon with Relative and Absolute Humidity-I, International Journal of Science and Research. 4 (2015) 1789-1791
[16] Hassan, N.M, Hosoda, M, Iwaoka, K, Sorimachi, A, Janik, M, Kranrod, C and Tokonami, S, Simultaneous Measurement of Radon and Thoron Released from Building Materials Used in Japan, Nuclear Science and Technology. 1 (2011) 404-407

The Gas Sensitvity Character of WO3 Nanosized Material HUANG Shi-zhen1,a , LIN Wei 1,b ，CHEN Wen-zhe1,c 1 Department of Electronic science Applied Physics, Fuzhou University,Fuzhou 350002,China a email: hs501@fzu.edu.cn b email: mqks@fzu.edu.cn cemail: cwz@fzu.edu.cn Key words: Nanosized material; WO3; NO2 Abstract By thermal decomposition, WO3 nanosized material was prepared as sensitive material and doped SiO2 nanosized material has been prepared using Sol-Gel process.
WO3 is a material developed in recent years.
Figure 1(a) and figure 1(b) are SEM pictures of microstructure of materials doped with SiO2 and pure WO3 respectively.
In the sinter temperature of 500-600℃，surface activity of grains of the sensing material is strong and BET of the material is large, result in high sensitivity to NO2 of the material.
References [1] Xiu sheng Wang, Liang ying Zhang, Xi Yao: Functional Material, Vol.29 (1998), p.276-277 [2] Jun Bao, Guo xing Xiong, Jin hua Gu: Film Science and Technology, Vol.18(1998), p.42-44 [3] Yu Hua-liang, Huang Shi-zhen, Lin Wei, Chen: Chinese Journal of Sensor and actuators, Vol.18 (2005), p.325-328 − − − − − − + →++ →+ ads ads ads ads O NOeONO NOeNO 2)(2 )( 2 22 2 2 Figure 2：Curve of response-recovery of the element