Search results

Under the effect of centrifugal force, the deformation at any radius of the two discs (respectively, r1 and r2) can be given by: （1） （2） Where: u1 (r1), u2 (r2) for the deformation of two-disc radius r1, r2; a1, b1, a2, b2, respectively for the inner and outer diameters of the disk 1, disk 2; E the elastic modulus; ω the angular velocity; v Poisson's ratio of the disk material; ρ the density of the disk.
Here r1 = a2、r2 = b1 , and b1= a2=R,，ω=2πn,a1>b2, then: （3） According to the theory of material mechanics and the clamping force shown as figure 1, under the effect of axial force Pt, the radial size of shank will decrease.
Yu, et al: Journal of Tsinghua University (Science and Technology), Vol.48 (2008), p. 1294-1297 [6] Z.

intensity and allows the rare earth Lifting permanent magnetic chuck to lift or unload the attracted objects. 1- immovable magnet yoke 1-external magnet yoke 2-restriction position unit 3-bearing 2- movable magnet yoke 4-small gear wheel 5-axis 6-big gear wheel 7-torsional spring 8-axis 3-immovable permanent magnet 9-swing stem 10-small chain 11-sling perch 12-lifting chain 13-pawl 4-movable permanent magnet 14-ratchet wheel 15-lifting ear 16-rotation magnetic system 5-attracted object 17-internal yoke 18-guard plate Fig. 1 Cross section of magnetic circuit system Fig. 2 Drive system Design of Magnetic Circuit Based on Neural Network The rare earth Lifting permanent magnetic chuck is composed of steel and magnetic materials
Acknowledgment The authors would like to acknowledge funding support from the Jilin Province Science and Technology Progress Project, China (Grant No. 20140441013SC).
Mag-17, No. 6,pp2211-2214, November 1981 [4] Mitsuaki Katoh, Noritaka Masumoto, Kazumasa Nishio, Tomiko Yamaguchi; “Modeling of the yoke-magnetization in MFL-testing by finite elements”, NDT&E journal 36 ,pp479-486,2003 [5] J.G.Kuschewski, S.Hui,S.H.Zak.

With the development of computer science, more and more teachers are studying the possibilities of including this technology in their EFL teaching.
“New Horizon College English” is now adopted as the teaching material in most universities in China, and this system can be called an example of combination between technology and course plan.
Then he can study the material, watch the teaching video, participate in discussion with peer learners, and upload his exercise or project.
[4] Gang Ding, Media in Foreign Language Instruction, No. 82, (Dec, 2001), p. 16-20 [5] Gaoda He, Journal of Basic English Education, Vol. 7, No. 6, (Dec.2005), p. 23-25 [6] Fang Huang, Media in Foreign Language Instruction, No. 117, (Oct.2007), p. 43-48 [7] Dandan Liu, Jiangsu Foreign Language Teaching and Research, No. 1, (2012), p. 4-7 [8] Kekang He, Teaching System Design, High Education Press, May, 2006 [9] Information on http:// www.news.xinhuanet.com/yzyd/edu/20140709 [10] information on www.sd.xinhuanet.com [11] Information on www.news.163.com [12] Information on www.jn001.com

Acknowledgements The authors would like to acknowledge the supports from Centre for Materials Physics, Durham University in providing the SEM and FIB facilities, Todd Green from INEX, ZETEX Semiconductors, and Jean-Pierre Raskin for the supply of silicon and SOI substrates.
Baumgartel, "Anisotropic Etching of Crystalline Silicon in Alkaline-Solutions:Orientation Dependence and Behavior of Passivation Layers," Journal of the Electrochemical Society, vol. 137, pp. 3612-3626, 1990
Raja, "Line edge roughness metrology using atomic force microscopes," Measurement Science & Technology, vol. 16, pp. 2147-2154, 2005.

Different levels of protection can be understood as the strength of the water pipe, which can be made in different materials like plastic, steel, stone and so on. 3) Pipe switch.
Computer Security: Art and Science, Addison Wesley. (2003) [2] Depart ment of Defense trusted computer system evaluation criteria, DoD 5200.28-STD.
Journal of Computer Security, (9):75–103. (2001)

Materials and methods Animals.
Acknowlegement: This work was financially supported by the National Natural Science Foundation of China (30700663), the NSFC–RFBR Joint Grant (20877029, 11-04-91189), the Major State Basic Research Development Program of China (2012CB720803).
Vann: Journal of clinical laboratory analysis, 6 (1992), p. 65 [7] S.

Beijing: Science Press, 2004.
[J]．Chinese Journal of Rock Mechanics and Engineering, 2010，29(s1)：2604-2610.
Supporting technology research of concrete filled steel tubular support in extremely soft roc mining area[J].Advances in Civil and Industrial Engineering: Applied Mechanics and Materials Vols. 355-356(2013)pp1559-1565.

The additional axial force caused by the decrease of temperature is (1) Where α is the coefficient of thermal expansion of the tubing material (for steel, α=1.2×10-5℃); ΔT is the change in average tubing temperature, ℃; E is Young's modulus (for steel, ); Ac is cross-sectional area of the tubing wall, m2
(2) Ballooning Effect Similarly, the additional axial force caused by the ballooning effect is (2) Where ν is Poisson's ratio of the material (for steel, =0.28); ΔPi and ΔPo are the changes in average pressure inside and outside the tubing respectively, MPa; Ai and Ao are areas corresponding to tubing ID and OD respectively, m2
Acknowledgements This work was financed by the Grand National Science-Technology Project “Optimal design and controlling technique of complex construction wells” (2011ZX05009-005).
Journal of China University of Petroleum. 2010, 34(4): 141-145

Experimental study on the effect of Road rollers construction Vibration CHEN Fa-ben1,a 1 Yunnan Provincial Highway Science and Technology Research Institute, Yunnan, 650051, China a1309504063@qq.com Keywords: subgrade compaction; vibration monitoring; attenuation law; environmental impact Abstract.
For general buildings, ground vibration whose intensity value is Ⅴ degrees will not cause structurally damage to buildings, but will cause loose door seams, decorative materials falling off, such as plaster.
Impact of Train Vibration on Surrounding Environment Based on Train-tunnel Coupling System[J].Journal of Lanzhou Jiao tong University ,2012(6):1-5

The more frequent industrial design approach suggests to include in the dynamic model of the blade a viscous damping ratio (typically about 0.2%) which accounts for the material damping, gas viscous damping and the hysteretic damping at the blade-disk joint.
For both cases, the loss factor, measured at the lowest amplitude agrees well with that measured in preliminary tests performed on the beams suspended by rubber bands and excited with a modal hammer, due to material and air viscous damping.
Engng Science, Vol. 212 (1998), p. 319
Klumpp: Journal of Applied Mechanics, Vol. 23 (1956), p. 421