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Introduction The voltage stability is the ability to keep or recover the power voltage within the limits of safety without voltage collapse after the power system suffers small or large disturbances[1].
Tab.1 The corresponding relationship of VCCT and line power in receiver system VCCT（s） Line active power（MW） VCCT margin VTTC margin 0.079 0.087 0.097 0.107 0.12 0.13 0.144 0.161 0.179 0.242 0.34 0.496 510. 495. 479. 464. 450. 434. 419. 404. 389. 345. 290. 198. -0.519 -0.379 -0.237 -0.121 0.000 0.077 0.167 0.255 0.330 0.504 0.647 0.758 -0.120 -0.093 -0.063 -0.032 0.000 0.035 0.072 0.111 0.154 0.301 0.548 1.268 Two indexes of VCCT margin and VTTC margin are defined as follows: (1) (2) The simulation result shows that when transmitted power is less than 180MW, VCCTs are basically the same no matter how large transmitted power is; when transmitted power is larger than 550MW, the voltage of receiver system will always lose stability no matter how small the failure clearing time is.
References [1] IEEE/CI GRE Joint Task Force on Stability Terms and Definition．Definition and classification of power system stability[J]．IEEE Trans on Power Systems，2004，l9(2)：1387- 1401
Electric Power Systems Research，1991，21(1)：9-16
Automation of Electric Power System 2005．33（7）: 1-5．

Pure copper is represented by UNS numbers C10100 to C13000 [1-2].
Results and Discussions Microstructure of ingot and billet of copper M2 are shown in Fig. 1.
a b c d Fig. 1.
References [1] K.J.A.
Chikova, The forming mechanism of ultradispersed phases in rapidly solidified aluminium alloys, Nanostructured Materials, 6(1-4) (1995) 477-479

Convergence criteria are determined by the energy, stress and displacement of each atom, which are set as less than 1×10-4 Ha, 0.02 Ha/Å and 5×10-3Å.
Fig.1 Models for CSi (a) and SiC (b) of defects in a (6,2) SiCNT.
The Brillouin zone sampling is performed using special k points generated by the Monkhorst-Pack grid with a value of 1×1×8, which is suitable to one dimensional materials[20].
References [1] S.
Mater. 6 (2007) 479

Rogoff [1] pointed out that it is very difficult to “reconcile the extremely high short-term volatility of real exchange rates with the glacial rate at which deviations from PPP seem to die out.”
References [1] Rogoff .K.
Journal of the Japanese and International Economies ,1997 , 11 (4) , 441 —479
Journal of International Money and Finance , 2005 , 24 (1) , 121 —138
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The stent model generated with the Pro/Engineer program is shown in Fig. 1.
Fig. 1.
Table 1.
References [1] W.
C 42 (2014) 479-488

Zhong 1,a, P.Q.
Engineers and researchers have paid much attention to the greenization of cutting process and cutting tool [1,2,3].
Fig.1 Manual fixture Electrical Fixture.
References [1] F.
to hydraulic cylinder 7 5 3 1 9 10 6 8 4 2

The process is shown in Figure 1.
The forces, which are transformed into the forces in the mechanics coordinate system according to the formula 1, are respectively Px=42.56481069;Py=32.31504754;Pz=85.24176052.
The analysis results are as follows： (1)The finite element analysis results about the model of measured femur In the course of human walking, when the femur gets the maximum stress ,the stress diagram of the von mises was shown in Figure 9.
[J] Z Orthop Unfall. 2007, 145(2):161 [1] Palm L, Olofsson J, Aström SE, Ivarsson I.
[J] Acta Orthop. 2007, 78(4):479 [2] Kurz MJ, Stergiou N.

Fig. 1.
Table 1.
References [1] Savin V.K.
Part 1.
P.479.

The collaborative modeling and analysis platform based on the Pro/E, ADAMS, and ANSYS is shown in Fig. 1.
Fig. 1 The collaborative modeling and analysis platform of complex mechanism ANSYS is one of the famous finite element analysis software, and its powerful analysis function has been widely accepted by the global industry.
There are two kinds of methods importing Pro/E model data into the ANSYS: 1.
References [1] Zhang Wei, Lu Bao-chun, Wu Hui-zhong.
Advanced Materials Research Vols. 479-481 (2012) pp 2462-2465

RASOOL Mohideen1, c 1 Department of Mechanical Engineering, B.S.
Wear track diameter of 60 mm with the sliding speed of 0.58 ms-1 was used and the disc rotation rate was taken accordingly.
Reference [1] S.J.
Liu: Mach Sci Technol vol 1 (1993), p.107 [5] H Dong, T Bell: Wear vol 238 (2000), p.131 [6] A.
A vol 479 (2008), p. 229 [11] Gui-rong, Hong-ming Wang, Yun–Cai, Yu-tao Zhao,Jun-jie Wang and Simon P.A.Gill, International Journal of Minerals, Metallurgy and Materials Vol 20 (2013), p. 896 [12] K.