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Particle system is mainly used to solve the problem of the big material generate and display on a computer, and the big material consists of lots of tiny substances according to certain rules of movement.
Journal of image and graphics, 1999,l4(9):734~737, in Chinese
[4] Lei Chen, He-xin Chen, Run-jie Wang, Song-wei Li, Real Time Snow Simulation in Flight Simulator,Journal of Jilin University of Technology(Natural Science Edition), 2005,35(2): 164~166, in Chinese
Computer Science,2003,30:144~146, in Chinese.

Introduction With the rapid development of materials science and structural design theory, structures which have long-span, lightweight and low damping became the development direction of the building.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50938008) and the Fundamental Research Funds for the Central Universities (2012JBM007, 2012YJS078).
Journal of structural engineering, 1984,110(2): 401-418 [2] Matsumoto Y, Nishioka T, Shiojiri h.
M., “A Method of Computation for Structural Dynamics”, ASCE Journal of the Engineering Mechanics Division, 1959, Vol.85, No.EM3.

Reverse Engineering of Cam Design Based on BP NN Yan Zhao1a,Lixin Lu1b*,Guiqin Li1c,Zheng Li1d,Xiao Yuan2,e, and Hongbo Li2,f 1Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University,  Shanghai, China 2East China University of Science and Technology, Shanghai, China awilliam89super@163.com, blulixin@shu.edu.cn, cleechingcn@hotmail.com, dlz_edward@shu.edu.cn, eyuanxiao@ecust.edu.cn, flihongbo@ecust.edu.cn Key words:BP Neural Network; cam design; Matlab program Abstract: A three layer BP NN is created to design the cam.
Machine science and technology, 2012. 31(007): 1132-1135
Materials & design, 2011. 32(4): 1844-1850
The International Journal of Advanced Manufacturing Technology, 2013. 69(1-4): 743-751
Canadian Journal on Artificial Intelligence, Machine Learning and Pattern Recognition, 2011. 2(6): 78-82

Improved Analysis on Main Beam of the Double-beam Crane Yuhui Luo1, a, Yongping Lou1, b 1School of Mechanical Engineering and Automation, University of Science and Technology, Anshan, Liaoning, China, 114051 a707036854@qq.com, byplou@163.com Keywords: Double - beam cranes, Main beam, Structural analysis Abstract.
When a load is applied stress, displacement of deformation the biggest conditions, that the car is in the central position of the beam, the size of the force to take 40 t (including grab weight, the car weight and the weight of the material crawl), two root of main beam, main beam by a force of 20 t, due to the load of the main beam suffered by the car wheels passed, and the two wheels on each side, it will be divided into two main beam subject to 20 t of load each concentrated load of 10 t for analysis.
Judging from the results of the stress test, the stress value at the point3, the center of the bottom of the main beam is relatively large, and the maximum stress in the material clamp conditions.
Development of a finite element simulation system for the tube axial compressive precision forming processed, International Journal of Machi, l (2002),15-20 [2] YAO Ke-heng, YIN Chen-bo.
Three-dimensional finite element analysis of overhead traveling crane, Journal of Wuhan University of Science and Technology, 6 (2009), 623-626

CFD Simulation of Prediction of Pressure Drop in Venturi Scrubber Majid Ali1,a, Yan Changqi1,b, Sun Zhongning1,c, Wang Jianjun1,d, Khurram Mehboob1,e 1College of Nuclear Science and Technology, Harbin Engineering University, Harbin 150001, China aalihrbeu@gmail.com,bchangqi_yan@163.com,czhongningsun@yahoo.com.cn, dwang-jianjun@hrbeu.edu.cn, ekhurramhrbeu@gmail.com Keywords: NPP, FVCS, Venturi Scrubber, Pressure Drop.
Acknowledgment The work is supported by the College of Nuclear Science and Technology, Harbin Engineering University and Chinese Scholarship Council.
Coury: Evaluation of the models available for the prediction of pressure drop in venturi scrubbers, Journal of Hazardous Materials, Vol.81, Part B (2001), p. 123–140
Santen: Designing for pressure drop in Venturi scrubbers: the importance of dry pressure drop, The Chemical Engineering Journal, Vol. 61 (1996), p. 203-211.

Acknowledgements This work was financially supported by National Natural Science Foundation of China (Grant No. 41361015 and 40461007) and International Joint Research Program of Jilin Provincial Science & Technology Department (Grant No. 20120740).
Journal of Soils and Sediments Vol. 8(5), p. 323-326 (2008) [3] M.L.
International Journal of Applied Earth Observation and Geoinformation Vol. 13, p. 246-255 (2011) [4] Dongfan Piao, Wei-hong Zhu, and Chengzhe Xu: Detection of Lead Pollution in Rice Using Hyperspectral Data.
Applied Mechanics and Materials Vols. 303-306, p. 685-688 (2013) [5] Raghuveer M.

With the development of science and technology, these difficult, high-risk rescue operations, will be high-frequency use of various types of robots instead of manual rescue operation [2].
After repeatedly debugging, mobile and flexible, the crawl could relief materials fast.
Acknowledgments This research is sponsored by Natural Science Foundation of Ningbo City (2011A610155).
Journal of Field Robotics.
Journal of Mechanical Design, Transactions of the ASME.

Acknowledgment This work was supported by the National Science and Technology Planning Project Foundation grant No. 2012ZX04011-022.
Journal of propulsion and power, Vol. 20(4) (2004), p.634 [3] Shumin Wan, et al: J.
Applied Mechanics and Materials, Vol. 217 (2012), p.2740 [4] Wenjing Dong: The effect of spindle fatigue life in different assemble error.
Journal of Mechanical Science and Technology, Vol.23(2009), p.931 [8] OKAMOTO JUNNAMI: Design and calculation of ball bearing.

Materials and Methods Huangtai Bridge hydrological station is located in the east of Jinan city and is one of the key national stations, which was built in 1916.
Acknowledgements This work was financially supported by the International Science & Technology Cooperation Program of China (2012DFG22140) and the Governmental Public Industry Research Special Funds Project (201201113).
Qiu: Journal of Agro-Environment Science Vol. 30 (2011), p. 986 (In Chinese with English abstract) [4] Information on http:// news.iqilu.com/other/20110930/1011189.shtml (In Chinese) [5] Information on http://news.xinhuanet.com/society/2011-09/28/c_122100078.htm (In Chinese) [6] S.
Hashim: Middle-East Journal of Scientific Research Vol. 11 (2012), p. 668 [8] A.

Introduction The main material of coral reefs consists of calcic deposition matters including the coral bones and their crumbs.
The material of seabed consists of coarse sands and gravels with medium grain size 0.89mm to 1.40mm.
Zhao: Chinese Science Bulletin, Vol. 21 (1979), p. 995-998.
Wallin: International Journal of Remote Sensing, Vol. 13 (2003), p. 2627-2639
Tian: Journal of Jilin University (Earth Science Edition), Vol. 5 (2011), p. 1630-1637.