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Online since: August 2013
Authors: Hua Li, Xu Dong, Shu Kui Han
The kinematic geometry of the architecture for the non over-constrained device is shown in Fig.1.
Figure 1.
The displacement of the platform is: (1) Where are the orientation errors around the x, y, z axes and be referred to in the text as Equation (1)
For legs j, k and l (j, k, l = 1, 2, 3, 4, i – j – k – l), the condition for having a maximum of the fourth kind on the interval is that: (1) (2) is orthogonal to X-X0.
Pittens, R.P Podhorodeski, A family of Stewart platforms with optimal dexterity, Journal of Robotics Systems 10 (4) (1993) 463–479
Figure 1.
The displacement of the platform is: (1) Where are the orientation errors around the x, y, z axes and be referred to in the text as Equation (1)
For legs j, k and l (j, k, l = 1, 2, 3, 4, i – j – k – l), the condition for having a maximum of the fourth kind on the interval is that: (1) (2) is orthogonal to X-X0.
Pittens, R.P Podhorodeski, A family of Stewart platforms with optimal dexterity, Journal of Robotics Systems 10 (4) (1993) 463–479
Online since: December 2006
Authors: Han Jun Oh, Kyung Wook Jang, Jong Ho Lee, Beom Su Ki, Chang Hoe Heo, So Hyun Kwon, Choong Soo Chi
Fig. 1.
Dislocation cell structures in aluminum substrate annealed for 1 h (a), 3 h (b), 6 h (c), 10 h (d) at 300 ºC, for 1 h (e), 3 h (f), 6 h (g), 10 h (h) at 400 ºC, and for 1 h (i), 3 h (j), 6 h (k), 10 h (l) at 500 ºC.
Anodic films formed from annealed aluminum substrate for 1 h (a) and 10 h (b, c) at 300 ºC, for 1 h (d) and 10 h (e, f) at 400 ºC, and for 1 h (g) and 10 h (h, i) at 500 ºC.
References [1] H.
Forum Vol. 475-479 (2005), p. 3919 [5] O.
Dislocation cell structures in aluminum substrate annealed for 1 h (a), 3 h (b), 6 h (c), 10 h (d) at 300 ºC, for 1 h (e), 3 h (f), 6 h (g), 10 h (h) at 400 ºC, and for 1 h (i), 3 h (j), 6 h (k), 10 h (l) at 500 ºC.
Anodic films formed from annealed aluminum substrate for 1 h (a) and 10 h (b, c) at 300 ºC, for 1 h (d) and 10 h (e, f) at 400 ºC, and for 1 h (g) and 10 h (h, i) at 500 ºC.
References [1] H.
Forum Vol. 475-479 (2005), p. 3919 [5] O.
Online since: March 2011
Authors: Quan Yuan, Peng Fei Li, Qian Feng Yao, Meng Guo
The schematic of the hybrid structure is shown in Fig.1.
The total composite wall is named as substructure 1, and the total shear wall is named as substructure 2.
According to Timoshenko beam theory [5] (Timoshenko 1990), the relation equations among the shear deformation, the flexural deformation and external horizontal loads of substructure 1 are introduced as (1) (2) To substructure 2, the relation equation between the flexural deformation and external horizontal loads is introduced as (3) where G1A1 and E1I1 is the shear stiffness and the flexural stiffness of the substructure 1; E2I2 is the flexural stiffness of the substructure 2; q(x) is the interaction between substructure 1 and substructure 2.
Combining Eq. (1) with Eq. (11), yq1 can be derived as (11) Based on the prior assumption, yb2=yb1+yq1, and y=yb2.
Mech., 36(4), 463-479 [2] Yao, Q.F., Hou L.N. and Huang, W. (2008), “Shear capacity of multi-ribbed composite wall”, Proceeding of the tenth International Symposium on Structural Engineering for Young Experts, Changsha, China, October
The total composite wall is named as substructure 1, and the total shear wall is named as substructure 2.
According to Timoshenko beam theory [5] (Timoshenko 1990), the relation equations among the shear deformation, the flexural deformation and external horizontal loads of substructure 1 are introduced as (1) (2) To substructure 2, the relation equation between the flexural deformation and external horizontal loads is introduced as (3) where G1A1 and E1I1 is the shear stiffness and the flexural stiffness of the substructure 1; E2I2 is the flexural stiffness of the substructure 2; q(x) is the interaction between substructure 1 and substructure 2.
Combining Eq. (1) with Eq. (11), yq1 can be derived as (11) Based on the prior assumption, yb2=yb1+yq1, and y=yb2.
Mech., 36(4), 463-479 [2] Yao, Q.F., Hou L.N. and Huang, W. (2008), “Shear capacity of multi-ribbed composite wall”, Proceeding of the tenth International Symposium on Structural Engineering for Young Experts, Changsha, China, October
Online since: June 2015
Authors: M.R. Sahar, S.F. Abd Rahman, Sib Krishna Ghoshal
Table 1: The sample composition in mol% glasses and labeling.
Figure 1.
[1] L.
Yana, Characterization of NiO nanoparticles by anodic arc plasma method, Journal of Alloys and Compounds 479 (2009) 855–858
Solid State Science and Technology 14(1) (2006) 115-120
Figure 1.
[1] L.
Yana, Characterization of NiO nanoparticles by anodic arc plasma method, Journal of Alloys and Compounds 479 (2009) 855–858
Solid State Science and Technology 14(1) (2006) 115-120
Online since: July 2005
Authors: Kwang Seon Shin, Yeon Jun Chung, Jung Lae Park, Nack Kim
In high temperature tensile
Table 1.
Fig. 1.
References [1] A.A.
Vol. 9(1) (2003), p. 21 [6] Y.J.
Forum Vol. 475-479 (2005), p. 537 [7] M.S.
Fig. 1.
References [1] A.A.
Vol. 9(1) (2003), p. 21 [6] Y.J.
Forum Vol. 475-479 (2005), p. 537 [7] M.S.
Online since: May 2006
Authors: Qian Peng, Lie Feng Liang, Jie Weng, F.X. Jiang
The sintering process was in the same condition as
was adopted above in the procedure 1.
Results and Discussion The microstructure of the sintered ceramics obtained in the procedure 1 was exhibited through SEM photos of the etched surfaces (Fig. 1).
The grains coalesced further to form a homogeneous integrated microstructure with a few pores and interfaces among grains in the 5% (Fig 1-c) and 7% (Fig 1-d) LiCl-doped ceramics.
References [1] H.
Feng, etc., Materials Science Forum Vol. 475-479(2005), p.2367-2370 [12] R.
Results and Discussion The microstructure of the sintered ceramics obtained in the procedure 1 was exhibited through SEM photos of the etched surfaces (Fig. 1).
The grains coalesced further to form a homogeneous integrated microstructure with a few pores and interfaces among grains in the 5% (Fig 1-c) and 7% (Fig 1-d) LiCl-doped ceramics.
References [1] H.
Feng, etc., Materials Science Forum Vol. 475-479(2005), p.2367-2370 [12] R.
Failure Prediction of Normally Consolidated Clays Using Stress Paths of Consolidated Undrained Tests
Online since: March 2014
Authors: Jong Ryeol Kim, Galym Zhumabekov, Dias Bakhtiyarov, Dilmurat Saliyev
Fig.1 explains the definition of SI schematically.
The stress states at failure are summarized in Table 1.
The maximum value of SI equals to 1 when p'=p'max, and it can be a negative value when the Skempton's pore pressure parameter A >1
References [1] ASTM D4767-11 (2011).
W. (1981), “Consolidation and settlement of soft clay,” Soft Clay Engineering, Elsevier, pp. 479~566
The stress states at failure are summarized in Table 1.
The maximum value of SI equals to 1 when p'=p'max, and it can be a negative value when the Skempton's pore pressure parameter A >1
References [1] ASTM D4767-11 (2011).
W. (1981), “Consolidation and settlement of soft clay,” Soft Clay Engineering, Elsevier, pp. 479~566
Online since: September 2013
Authors: Dan Tian Zhang, Yong Chang Liu, Zhi Xia Qiao, Jie Huo, Hui Jun Li, Ze Sheng Yan
There is an inflection point between stage 1 and 2, at 765 oC.
In this experiment, two X65 samples were prepared, which were heated to 750 oC (in stage 1 of Fig. 2) or 780 oC (just exceeding stage 1 of Fig. 2) at about 200 oC/min, held for 10min and then quenched to water at room temperature.
Therefore, the slope in stage 1 (Fig. 2) is somewhat lower than that in stage 2.
References [1] C.
Lee, Materials Science Forum, (475-479)2005, p.3169-3172
In this experiment, two X65 samples were prepared, which were heated to 750 oC (in stage 1 of Fig. 2) or 780 oC (just exceeding stage 1 of Fig. 2) at about 200 oC/min, held for 10min and then quenched to water at room temperature.
Therefore, the slope in stage 1 (Fig. 2) is somewhat lower than that in stage 2.
References [1] C.
Lee, Materials Science Forum, (475-479)2005, p.3169-3172
Online since: October 2010
Authors: Xiu Hong Kang, Shi Ping Wu, Nan Nan Song, Dian Zhong Li
The schematic diagram and real experimental apparatus are shown in Fig. 1 and Fig. 2, respectively.
(2) Where, S is the thread interval (m), υχ is the velocity of x direction (ms-1) , r is the radius of the mold (m), υt is tangential velocity (ms-1), ω is angular velocity(s-1), π is circumference ratio, β is velocity loss rate, which has been gained in 3.2.
Fig. 7 Rotation speed VS width of the thread at time 1.524s 4.
Program number: 2009ZX04014-081 References [1] H.G.Fu, Q.
A Vol. 479 (2008), p. 253–260 [2] J.W.Gao and C.Y.Wang: Mater.
(2) Where, S is the thread interval (m), υχ is the velocity of x direction (ms-1) , r is the radius of the mold (m), υt is tangential velocity (ms-1), ω is angular velocity(s-1), π is circumference ratio, β is velocity loss rate, which has been gained in 3.2.
Fig. 7 Rotation speed VS width of the thread at time 1.524s 4.
Program number: 2009ZX04014-081 References [1] H.G.Fu, Q.
A Vol. 479 (2008), p. 253–260 [2] J.W.Gao and C.Y.Wang: Mater.
Online since: September 2014
Authors: Hai Long Huang, Zhong Yi Zhao, Jie Guo
And the two-dimensional histogram is shown in Fig. 1(b).
Equations of L1, L2, L3 and L4 are shown in Eq. 1.
,1/21 (3)
,01/2 (4)
Choose Structuring Element.
References [1] REN Y H.
Beijing:Publishing House of Electronics Industry, 2003:474-479 [3] MARAGOS P.
Equations of L1, L2, L3 and L4 are shown in Eq. 1.
,1/2
References [1] REN Y H.
Beijing:Publishing House of Electronics Industry, 2003:474-479 [3] MARAGOS P.