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The electro-hydraulic exciter is characterized by its large displacement and strong exciter force, so it is widely applied in many main industrial fields such as earthquake environment simulation, large-scale structural dynamic characteristics test, material fatigue examination and device fault diagnosis, etc[2].
Acknowledgement It is a project supported by the Committee of National Foundation of Natural Sciences (50675204) and the Committee of the important item of Zhejiang Provincial Foundation of Natural Sciences (D1080667).
Proceeding of the institution of mechanical engineers part 1-Journal of systems and control engineering.

The P wave, or compression wave, alternately compresses and expands material in the same direction it is traveling.
Computer-Aided Civil and Infrastructure Engineering Volume:24,Issue Number: 4,Publisher: Blackwell Publishing, 4(6), 1093-9687 (2009) [8] Wu Jing-Jin Chen Wei: (Nanchang University, Nanchang 330029); Edge Detection Based on Multi-scale Lifting Wavelet; Journal of Chongqing University of Science and Technology (Natural Sciences Edition). 1(4), 90-99 (2009) [9] Donald B.

Application of the higher modes to crack identification in a cantilever beam LIU Yuxiang a ZHANG Weiweib MA Hongweic College of Science & Engineering, Jinan University, Guangzhou 510632, China.P.R a hpliuxy@163.com b zwwps@hotmail.com c tmahw@jnu.edu.cn Keywords: damage detection; crack; wavelet analysis; a cantilever beam Abstract: Damage detection by the wavelet transform of the fundamental vibration mode receives much attention recently.
And its geometric and material parameters list as following: Density 33 /100.8 mkg×=ρ Young's modulus GpaE 223= Beam high mmh 15= Beam thick mmb 15= Beam length mmL 500= The cracked vibrating beam is modeled as a segmented beam whose analytical model was Eulero-Beronoulli beam.
Acknowledgment This study was supported by the Key Natural Science Research of Guangdong Province,China P.R (Grant No. 05Z003) and the Project of tackling key problem of Guangdong Province, China P.R (Grant No. 2006B12401008) References [1] H.N Li and H.M Sun: World earthquake engineering. 2003(2), p.16 (Chinese)
[7] E.Douka, S.Loutridis and A.Trochidis: Journal of Sound and Vibration.Vol. 277 (2004), p.1025

To simplify the twodimensional analysis, it is assumed that: 1) all regions are extended infinitely in x direction; 2) permeability of back iron is infinite; 3) edge effects in the z direction are ignored; 4) the permeability of PM material is equal to the permeability of free space.
Acknowledgment The work described in this paper was supported by the National S&T Major Project (2009ZX02207-001), the National Science Foundation of P.
China (No. 51177024) and the National Science Foundation for Distinguished Young Scholars of China (Grant No. 51225702).
International Journal of Advanced Manufacturing Technology, 2009, 48(5-8):633-643

North China Institute of Aerospace and Engineering, Department of Material and Engineering, Langfang Hebei 065000; 2.
Hebei University, College of Environment and Science, Baoding Hebei 071002) Key words: environmental protection, coordinate, paradox, double-win Abstract: Harmonious development of environmental protection and economy is a realistic choice made in specific national situation for economic development and environmental protection.
Heilongjiang Science Information, 2010, (35): 150 In Chinese [2] Hongchun Zhou, Lizhi Lv.
Journal of Guizhou Policeman Occupational Institute, 2010，（04）：66-69 In Chinese

Use slope planting as vegetation buffer zone, can reduce surface runoff velocity, filter and intercept the particulate pollutants, and ensure the material and energy exchange on the slope, thus improve the pits purification capacity and protect the water environment
References [1] Lizhu Hou, YueYuan Ding and Shuhan Zhang: Beijing Sino-German cooperation in urban rainwater utilization concept and practice, Journal of water resources in Beijing, 2004 (4): 31-33
[4] Baoyi Wei, Jun Wang: The water supply and demand analysis of Beijing, South-to-North Water Transfers and Water Science & Technology, 2009 (2): 40-41,54
[5] Pute Wu: Rainwater harvesting and modern water saving agriculture, Review of China Agricultural Science and Technology, 2007, 9 (2): 15-20

That is to comprehensively develop the scenic spot, to build a low carbon environment, as well as, to indoctrinate low carbon concept to travelers through specific and touchable material object, activities, etc, to make them get a real feel for low carbon atmosphere, then forms low carbon concept and guides low carbon travel behavior.
Low-carbon tourism has a prominent feature in contrast with other types of tourism activities--close contact with the science and technology.
Acknowledgements This work was financially supported by the Natural Social Science Foundation (10CGL038) References [1] Yiping Li．Geographical Consciousness and Tourism Experience.
Journal of Sustainable Tourism, 2007, 15(1):67-90

Assessment of Nanocatalyst Dispersibility in a Polymer by Employing Relative Standard Deviation Yi Yanga, Hua-Ping Bai b, Xin-Jie Yu, and Jun Wang School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China ayyi301@163.com, bhpbai@gmail.com Keywords: Dispersibility; Nanomaterials; Relative standard deviation; Combustion heat, Catalysis.
Surface science: foundations of catalysis and nanoscience (3rd ed).
Dispersibility and degradation properties characterization of nano titanium dioxide photocatalysis material, Key Eng Mater, 2007, (334-335): 565-568
Chemistry - A European Journal, 2012, DOI: 10.1002/ chem. 201101410 [11] C.

Desulfurization of Fuel Oils by Extraction with Ionic Liquids Xiaojiao YU1,a, Hailing HAO2,b,Jian ZHANG1,c,Gang ZHENG1,d,Binghua YAO1,e 1Faculty of Sciences，Xi’an University of Technology，Xi’an710048，China. 2 Institute of Chemistry and Chemical Engineering , Henan Institute of Science and Technology , Xinxiang, Henan453003，China.
But the use of these PF6− and BF4− ionic liquids as large scale extracting agents is not optimal because of the relative high price of starting material and has strict temperature limitation in presence of water.
Green Chemistry; Vol.12 (2010),p.1139 [4] BÖsmann A,Datsevich L,Jess A,Lauter A,Schmithz C, Chem Commun.Vol.66(2001),p.2494 [5] Chu Xuemei, Hu Yufeng, Li Jiguang,Liang Qianqing,Liu Yansheng, Zhang Xianming.Chinese Journal of Chemical EngineeringVol.16(2008),p.881 [6] Ko NH，Lee JS，Huh ES，Lee H，Jung KD，Kim HS，Cheong M.

Table 2 Outburst prevention area measure test rating of uncovering coal Coal ηdrainage [%] PCY [MPa] WCY [m3/t] Δh2 [Pa] 13 47.2 0.30 3.67 117.6 14-1 85.6 0.42 4.38 78.4 Uncover coal safely After taking local comprehensive outburst prevention measures, use remotely initiated blasting to uncover coal, then drive one row once, gummite concrete, grout Ma li san that is a polyethylene imine colloid material, cross through in-seam cross-cut successfully, uncover the coal seam safely.
Acknowledgements The twelfth Five Years Plan National Science and Technology Major Projects: Coalbed Methane Extraction Efficiently, Gathering and Transportation Technique and Equipment Development in Coal Mining Area (2011zx05041).
Research on Feasibility in Preventing the Coal and Gas Outburst by Infecting Liquid and Freezing in Uncovering Coal Seam in Cross-cut, Journal of China Coal Society, 2010, 35(6):937-940, (In Chinese)
New Drilling and Reaming Integrated Technology with Hydraulic Outburst Prevention [J], Coal Science and Technology, 2009, 37(11): 40-44, (In Chinese).