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Erosive ions in industrial boiler water on the corrosion behavior of water-wall tubes Maodong Li1, a, Bin Zeng2, b, Yuhui Du1, c, Juan Liu1,d ,Junming Zhao1, e , Zhiping Zhu2,f 1Guangzhou Special Pressure Equipment Inspection and Research Institute, China Guangdong 2Changsha University of Science & Technology, China Changsha aemail:lmd92791@21cn.com,bemail:zengbin0717@qq.com,cemail:cdyh13380098152@126.com, demail:juanl1010@163.com,eemail:broodzjm@126.com,femail:zzp8389@163.com Key words: Industrial Boiler; water-wall tubes; HEDP; corrosion Abstract.
Affect of several ions such as Ca2+ and Cl- in industrial boiler water on 20# carbon steel (the main material of water-wall tubes for industrial boilers) was investigated using electrochemical impedance spectroscopy and Tafel polarization techniques.
[8] Wang Hongjie: submitted to Journal of Hebei Institute of Architectural engineering (2000)

The shell-integrated condenser is one of the key components in the underwater closed-loop thermal propulsion system.
; (2) In the formula:k-influence coefficient between the fins;-fin parameter;-the thermal conductivity of the condenser material;-the width of the wall between cooling channels,;-helix angle of the channel;- convection heat transfer coefficient of the steam and the wall.
Tong, Engineering thermodynamics, The third ed., Beijing: Higher Education Press, 2001. 06: 29-40

Research on Trapping Oil Property and Operating Characteristic of Arch Gear Pump Aiping Song a, Wenjie Gao b, Shang Gaoc College of Mechanical Engineering, Yangzhou Univ., Yangzhou 225009, china aapsong@sina.com, bmars_candy@126.com, cgaosh_715@163.com Key words: Gear pump; Trapping oil; Arch cylindrical gear Abstract: The arch gear pump is a new kind of gear pump.
Spur gear pump has been widely used for the advantage on price, reliability, service life of pump and self-priming capacity[1].In recent 30 years, many scholars and engineering persons do a lot of study on the trapping oil phenomenon of spur gear pump and various method have been developed to solve it.
Taking advantage of smooth transmission, low noise, high efficiency, long service life, convenient to install, Arch cylindrical gears will have broad application prospects as a basic component of mechanical engineering[6].
Fig.8 Arch gear pump Fig. 8 shows an arch cylindrical gear with material of engineering plastics.
References [1]GAO Yong-qiang: Fluid Machinery, Vol.135(17),2007, p.44 [2] Zang Kejiang,Zhou Xin,Gu Lizhi: China Mechanical Engineering, Vol.15(7), 2004, p.578 [3]Gan Xuehui, Hou Donghai, Wu Xiaoling: China Mechanical Engineering,Vol39(2), 2003,p.145 [4]Mucchi E., Dalpiaz G., Rivola A.: Mechanical Systems and Signal Processing, Vol.24, 2010,p.2180 [5]Ertürk N.

SVM Based Seismic Fragility Analysis for RC Isolated Continuous Girder Bridge XiaoHong Long1, 2, BeiLei Chen1, JianLun Li1 1School of Civil Engineering & Mechanics, HuaZhong University of Sci. & Tech, Wuhan 430074, China; 2Hubei Key Laboratory of Control Structure, HuaZhong University of Science & Technology, Wuhan 430074, China xhlong@hust.edu.cn, cbl-0304516@163.com, bambooli127@gmail.com Keywords: fragility analysis; nonparametric analytical method; SVM; IDA.
Introduction Bridge structures are important hub structures of transportation lifeline engineering.
Chinese Journal of Geotechnical Engineering,2007, 29(6):819-823 [5] LIU Ji-ke, ZHAO Wei.
China Civil Engineering Journal, 2004:37(6)
Engineering Structures, 2009, 31: 1648-1660

Analysis on the Seismic Behavior of extended end-plate connections of Steel Frame Structure Yan Zhuling1,a , Cui Baolong2,b ,Zhang Ke3,c 1,2 Yan’an, Shan’xi, China, Teaching and research section of Civil Engineering of Yan’an University, 716000 3 Xi’an, Shan’xi, China, College of Architecture of Xi’an University of Architecture and Technology, 710055 ayzhl20081@126.com，bydxxxytmcbl@126.com，cydxxxytm@126.com Key words: semi-rigid connections; steel frame; extended end-plate connection; seismic performance; hysteresis curve; finite element method; end-plate stiffening rib; Abstract: This paper conducts analysis on beam-column extended end-plate semi-rigid connection joint concerning monotonic loading and cyclic loading of finite element through ANSYS program, mainly discussed the influence of parameters such as the form of end plate stiffening rib on anti-seismic performance of joint. 1.
The reason may be defected of practical material and roll or the welding residual stress of panel point constitute element.
The Structural Engineer,1986,64A(5)； [7] Aggarwal A K.
Journal of Structural Engineering,1990,116(11)； [9] Adey B T, Grondin G Y, Cheng J J R.
Canadian Journal of Civil Engineering,2000,27(4)； [10] Shi Gang.

Research on Stress Migration and Evolution Law of Coal in Driving Face and Generation Mechanism of Acoustic Emission Huiming Yang 1, 2, a 1College of Resource and Environment Engineering, Shandong University of Science and Technology, Qingdao Shandong 266590, China 2National Key Laboratory of Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing 400037, China ayhm3380@163.com Keywords: Stress Migration, Stress Evolution, FLAC, Roadway Excavation, Acoustic Emission.
Introduction Dynamic phenomenon, such as rock burst, coal and gas outburst, coal bump, usually happen in underground geotechnical engineering.
That is, as the strain increases, the cohesion and friction angle of the material gradually reduce.
Journal of Coal Science & Engineering, Vol.15(2009), p.237-242
Chinese Journal of Rock Mechanics and Engineering, Vol. 25 (2006), p. 1343-1351

Amplification Effect of Near-Fault Vertical Ground Motions on Horizontal Deformation Response of structures Yin Jiang1, a, Zhou Xian-yan1,b, Yin Jian1,c 1 College of Civil Engineering and Mechanics, Central South Universityof Forestry and Technology, Changsha, Hunan, 410004, China ayinjiang2001@yahoo.com.cn, b zxy560805@163.com, ccsuyj700930@163.com Keywords: Near-fault; Vertical effect; Deformation Response Near-fault.
Xiao-wang, et al.: Aseismic Engineering, (China Architecture & Building Press, Beijing 2000)
Journal of structural engineering, Vol. 114, No. 8 (1988), p. 1104-1127 [5] J.
Earthquake Engineering and Structural Dynamics, Vol. 32, No. 15, (2003) , p. 2425-2450 [7] S.
Journal of Bridge Engineering, Vol. 13, No. 3 (2003), p. 283-290

The Design of Insulator Leakage Current Monitoring Device Based on MSP430 Microcontroller Dan Zhong1, a , JianXun Hu2,b, WenFang Ding1,c, Hui Chen1,d 1School of electrical and electronic engineering, Hubei university of technology, Wuhan 430074 China 2School of electrical engineering, Wuhan university, Wuhan 430074 China apopzhongdan@163.com, bjjknightcn@163.com, cwenfangding@163.com donly4ray2002@hotmail.com Keywords: MSP430, microcontroller; insulator leakage current; line monitoring.
The leakage current and the size of insulator pollution flashover is closely relative to the development of its size, and soluble salt composition and content, not soluble salt content, the distribution on the device surface, pollution water or damp degree, equipment dimensions and material types, applied voltage and polarity factors closely related to.
The Selection of the MSP430 Microcontroller As the transmission line insulator on-line monitoring device to be installed on the line long near the equipment, so its reliability, power device design have become the key problems to be solved.
References [1] ZHANG Jianxing, LU Fangcheng, LIU YunpengTAN Lei, ZHAO Yaping．Relationships Among Leakage Current of Insulators on HV Lines, Temperature and Humility Based on the Grey Relational Analysis[J]．High Voltage Engineering．2006，32（1）：40-41，73 [2] LI Zunda.
Research on Leakage Current and Discharge Phenomena of Insulators [J]．High Voltage Engineering．2002，28（120）：1-2，14 [6] HE Bo, LIN Hui．Statistics Characteristics of Leakage Current on Artificial Contamination Test of Insulator [J]．High Voltage Engineering．2006，32（8）：4-6 [7] ZHANG Yaping, WU Jizhong．The LJC Type Device for Monitoring Alarming Transmission Line Insulator Contamination [J]．High Voltage Engineering．2000，26（6）：26-27 [8] T.

Cheng4,d 1 School of Defense Science Studies, Chung Cheng Institute of Technology, National Defense University , Taiwan, R.O.C 2 Department of Biomechatronics Engineering, National Pingtung University of Science and Technology, Taiwan, R.O.C 3 Department of Power Vehicle and System Engineering, Chung Cheng Institute of technology, National Defense University, Taiwan, R.O.C 4 Department of Power Mechanical Engineering, Army Academy, Taiwan, R.O.C a valky_liu@hotmail.com.tw, b jmmiao@mail.npust.edu.tw, c tlliu@ndu.edu.tw, dcheng5721@gmail.com Keywords: Active micro-mixer, CFD, Mixing efficiency, Mixing mechanism, Wankle-type rotor.
In key material of biotechnology, the characteristics of a micro-mixer include small in size, less samplings required, fast reaction time, reduced experimental errors caused by manual operation, increased overall system stability, reduced sample consumption and shortened testing time.
With the increased demand for shorten reaction time in chemical micro-plant engineering technology over recent years, the requirements for micro-mixers’ minimization and less sample volume have now become more pressing.
Wang: Design and evaluation of an easily fabricated micromixer with three-dimensional periodic perturbation, Chemical Engineering Journal, Vol. 171, Issue 1, pp. 291-300, 2011
Woias: Numerical and experimental investigations on liquid mixing in static micromixers, Chemical Engineering Journal, vol. 101, pp.315–322, 2004.

A simple nanocasting route for preparation of mesoporous titanium dioxide/GCM microsphere Haibin Yang1,a, Wei Rao2,b 1,2Department of Applied Physics, College of Science, Naval University of Engineering, Wuhan, Hubei, China a8895660@qq.com Keywords: titanium dioxide/graphitic carbon; Microspheres; Nanocasting route; Mesoporous Abstract.
Introduction Among various oxide semiconductor, Ti-based materials is the most promising and challenging investigated materials because of its characteristics of high chemical stability, nontoxic, low cost and unique photoinduced electron transfer.
Many different preparation methods have been reported for preparing Ti-based photocatalyst materials.
The prepared materials exhibited cylindrical pores with a diameter of 7.3 nm arranged in a 2D hexagonal fashion and a surface area of 438.9 m2 g-1.
The synthesized materials can be used for many potential applications, such as for use as catalyst/photo catalyst supports or electrodematerials.