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Piezoelectric ceramic materials with the same polarization direction are at up and down respectively, and its thickness is t2.
According to axisymmetric bending theory for circular sheet[12], moment on r-o-z plane for metal layer can be obtained as (14) Where MM means torque in the metal layer, Em means elastic modulus of metallic materials, υ means Poisson's ratio for the material.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (61105106, 61005071), Natural Science Foundation of Jiangsu Province (BK2010266, BK2011379) and Suzhou Science and Technology Program of Suzhou (SYG201038).
[3] M.D.Li, H.D.Xi, J.D.Chu et al: Journal of Shanghai Jiaotong University.
Vol. 289 (2006), p. 632-655 [11] D.J.Wagg, S.F.Bishop: Journal of sound and vibration.

The workpiece material is heat treated AISI 4140.
The material, the texture and the position of the parts are defined as well.
Rong: Machining Science and Technology Vol. 3/1 (1999), p. 2548 [7] L.V.
Rößing: ProSTEP iViP Science Days, Darmstadt, Germany (2005) [9] J.C.
Hassan: European Journal of Scientific Research Vol. 24/1 (2008), p. 148156 [17] W.K.

Vacuum suction mechanisms are easy to control, and allow robot to climb over seamless surfaces which are made by all kinds of materials.
Since dry adhesion does not rely heavily on the surface material or the atmosphere, it is suitable for use in the vacuum space.
Tso, Development of a tracked climbing robot, Journal of Intelligent and Robotic Systems archive. 35 (4) (2002) 427-443
Kim, Kim Dongmok, Yang Hojoon, Lee Kyouhee, Seo Kunchan, Chang Doyoung, Kim Jongwon, Development of a wall-climbing robot using a tracked wheel mechanism, Journal of Mechanical Science and Technology. 22 (8) (2008) 1490-1498
Metin, A biomimetic climbing robot based on the gecko, Journal of Bionic Engineering. 3 (3) (2006) 115-125

Materials Model Modeling the material is very important for the whole FE simulation.
Fig.4 illustrates the milling process of cement concrete, and the nephogram is the Mises equivalent stress, reaches 1.35MPa in the concrete materials.
From Fig.5, we can find that the stress in the contact element is instantaneous and pulsant, and maximal stress reaches 1.1MPa and does not exceed the materials’ strength.
[4] Jinyue Tian and Huarong Xiang: Journal of Jiangsu University, Vol.25(2004),No.5,pp.380-384
[5] Manhua Qin, Helai Yang and Man Xue:Journal of Tianjin Institute of Urban Construction, Vol.6(2000),No.2,pp.122-125

Among those feasible reuse technologies, most utilize sludge incineration residue as a recycled material since it is rich in silicon oxide and aluminum oxide[2].
Many recycled materials, which have similar com positions as residue has, such as fly ash, electric furnace residue, have been found to have the capability of adsorbing or removing heavy metals ions [3].
Materials and Methods Samples and Equipments Sludge samples were collected from a wastewater treatment plant and a paper mill plant in Guangzhou, China.
Hanafiah: Bioresource Technology,Vol.99 (2008),p.3935 [6] Belgin Bayat: Journal of Hazardous Materials,Vol.B95 (2002),p.251 [7] I.J.
H.Woo, Jong M: Journal of Hazardous Materials,Vol.164 (2009),p.1130 [9] Y.S.Shim, Y.K.

Ablation Properties of C/C-ZrC-SiC Composites Mengjiao Gao1, a, Lai Chen1,b, Yongsheng Hua1,c,Musu Ren1,d,Jinliang Sun1,e 1 School of Material Science and Engineering, Shanghai University, Shanghai 200072, China agaomj@shu.edu.cn, bclai@shu.edu.cn, chys@shu.edu.cn, dmsren@shu.edu.cn, ejlsun@mail.shu.edu.cn Keywords: C/C-ZrC-SiC composite, precursor infiltration and pyrolysis, ablation, anti-oxidation Abstract: The ablation properties of C/C-ZrC-SiC composites prepared by precursor infiltration and pyrolysis processes were studied by the H2-O2 ablation method.
Because of these characteristics, the C/C composite was used successfully as the thermal structure materials in aerospace indurstry[1].
ZrO2 is a typical thermal barrier material which can effectively prevent external heat diffusing inward [5], so the high temperature zone was limited to the surface.
Srinivasan: Journal of Materials Engineering and Performance, Vol.12( 2003), p.354 [2] Strife J R., Sheehan J E.
:Ceram Bull,Vol.67(1988), p.369 [3] Qingfeng Tong, Jingli Shi, Yongzhong Song, Quangui Guo and Lang Liu: Carbon, Vol.42(2004), p.2495 [4] Wang C R,Yang J M,HoffmanW: MaterialsChemistry and Physics, Vol.74(2002), p. 272 [5] Penvecost J L.High Temperature Inorganic coatings[M].New York:Reinhold Publishing Corp,1963:10 [6] Shi Wu , Lai Chen, Lin Qian, Jiabao Zhang,Jianfeng Pan, Chunjie Zhou, Musu Ren, Jinliang Sun: Journal of Chinese Ceramic society (in Chinese), Vol.36 (2008), p.973 [7] Guiming Song, Yujin Wang, Yu Zhou, Yingkui Guo, Guangwu Wen: Rare Metal Materials and Engineering (in Chinese), Vol. 30(2001), P.101

Moreover, cobalt ferrite demonstrates marked antibacterial activity in relatively small quantities with the result that the nanopowder is considered as a novel antibacterial material.
The morphology, homogeneity and particle size of the materials was observed using a field emission scanning electron microscope (ZEISS SUPRA 40 VP SEM).
The bacteriological test series were carried out according to ASTM E2180-07: ‘Standard Test Method for Determining the Activity of Incorporated Antimicrobial Agent(s) in Polymeric or Hydrophilic Materials’.
Journal of Magnetism and Magnetic Materials, 1998. 183(1–2): p. 163-172
Journal of Magnetism and Magnetic Materials, 2009. 321(9): p. 1251-1255.

Injection molding differs from compression molding mainly in different remolding of the material.
Both the groups of the samples were made in comparable process conditions (Tab. 2) from one material batch.
However, in case of compression molding, the material is exposed to much lower shearing deformation and in a short multi-directional flow.
Journal of Applied Polymer Science, 123 (3) (2012) 1437-1454
Journal of Materials Research 19 (1) (2004) 1564-1583

Apicella, "SMART Platform for Structural Health Monitoring of Sensorised Stiffened Composite Panels " Key Engineering Materials, vol. 525-526, pp. 581-584, 2013
Aliabadi, "Impact Detection Using Artificial Neural Networks," Key Engineering Materials, vol. 488, pp. 767-770, 2012
Aliabadi, "Determination of impact location on composite stiffened panels," Smart Materials and Structures, vol. 21, p. 105026, 2012
Sharif Khodaei, "Optimal sensor positioning for impact localization in smart composite panels," Journal of intelligent material systems and structures, vol. 24, pp. 559-573, 2013
Apicella, "Identification of impact force for smart composite stiffened panels," Smart Materials and Structures, vol. 22, p. 085014, 2013

Synthetic materials were suitable for large diameter arteries but often thromboses when used in smaller arteries.
But like other materials, when used as blood-contacting material, silk fibroin' anticoagulation had to be improved significantly.
Materials and methods Bombyx silk was degummed with 0.5% Na2CO3 solution at 100℃ for 1.5h and then washed with distilled water.
European Journal of Cardio-thoracic Surgery.
International Journal of Biological Macromolecules.