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The material’s mechanical properties is in table 1.
Materials development and application，1997，9(5)：p.1.
Journal of Process Engineering，2007，7(3)：p.628.
Functional Materials，2006, 37(2): p.281.
Ship Science and Technology，2008，30(3)：p.26.In Chinese.

Materials and Experimental Materials.AH-70 paving asphalt was provided by SK Energy Co.
Construction and Building Materials. 21 (2007) 328–337
Construction and Building Materials.23 (2009) 2701-2708
Construction and Building Materials.21 (2007) 1528-1533
Construction and Building Materials. 22 (2008) 2111-2115.

From all kinds of processes, concerning the materials used, polymer printing is the most accessible.
As plastic materials are much cheaper and not very difficult to use compared to other materials, especially metals, nowadays plastic 3D printing is widely spread around the world.
Fig.1. 3D printer used for the tests Printing Materials Characteristics The material used for analyzing the test faults was mainly PLA (Poly Lactic Acid) but also ABS (Acrylonitrile butadiene styrene).
Popa, Studies about virtual behavior of tibia fractures and nails during the fixation process., Journal of Industrial Design & Engineering Graphics 8 (2) (2013) 5-10 [2] B.
Berman, 3-D printing: The new industrial revolution, SciVerse Science Direct, Business Horizons, 55 (2012) 155-162 [3] N.

Speakman and Chamberlain [1] have looked at the thermal conductivity of textile materials and fabrics.
Crow [15] has published an excellent review on thermal properties of textile materials.
It is one of the most fundamental properties of materials such as density, strength properties, chemical resistance.
Journal of the Textile Institute, 102:9, 752-762
[13] C.Prakash, A study of the properties of cotton/bamboo blends Ph.D: thesis in Anna University(2011) [14] J.Militky and D.Krenenakova, Thermal conductivity prediction of textiles materials selected topics of textiles and material science 368- 375 Liberal(2011) [15] Mahabub, R.F:Wang, L.Arnold, L.Kineslingana and Padhye, R.

Finite Element Modeling The paper analyzes multi-layer pavement structure, assumes the material has linear elastic properties and uses the finite element analysis software ANSYS 9.0 to model.
The material mechanical parameters and geometry parameters of the pavement structure are in Table 1.
However, the peak tensile stress is much smaller than the material allowable value. ​​
Acknowledgements This work was financially supported by Hebei Provincial Department of Communications Science and Technology Project.
References [1] Antoni Szydlo , Piotr Mackiewicz：Asphalt Mixes Deformation Sensitivity to Change in Rheological Parameters (ASCE.JANUARY/FEBRUARY, 2005) [2] R.Blab , J.T.Harvey: Visco-elastic Rutting Model with Improved Loading Assumptions (Washingtong.D.C.,2002) [3] Jiayong Wang: Rutting Prediction by FEM and Influence Factor Analysis Based on Rutting Test (Chang'an University, 2009, In Chinese) [4] Mengqi Gao etc.: Finite Element Analysis of Visco-elastic and Linear Elastic Road Models Under Non-uniform Distributed Dynamic Load (Journal of Wuhan University of Technology(Transportation Science & Engineering), 2010, In Chinese) [5] Qisen Zhang, in: Finite element analysis of road engineering, Beijing: Communications Press (1983) [6] Ldomir Uzarowski: The Development of Asphalt Mix CreeP Paralneters and Finite Element [7] Jianfeng Hua: Finite Element Modeling and Analysis of Aeeelerated Pavement Testing Deviees and Rutting Phenomenon (West Lafayette: PurdueUniversity, 2000)

Introduction As a new kind of carbon nano-materials, carbon nanotube has unique structure and properties.
It can be used for composite materials [1], miniature electronic devices [2], flat-panel display [3] and hydrogen storage [4], etc.
Acknowledgments This research was supported by National Natural Science Foundation of China（NO.50676032）.
References [1] Salvetat Delmotte J P, Rubio A: Carbon, Vol. 40(2002), p.1729 [2] Tsukagoshi K, Yoneya N, Uryu S, et al: Physica B , Vol. 323(2002), p.107 [3] Jean-Marc Bonard, Mirko Croci, Christian Klinke, et al:Carbon , Vol. 40(2002), p.1715 [4] Becher M, Haluska M, Hirscher M, et al: C R Physique , Vol. 4(2003), p. 1055 [5] Ebbesen T W, Ajayan P M: Nature, Vol. 358(1992), p. 220 [6] Thess A, Lee R, Nikolaev P, et al: Science, Vol. 273(1996), p. 483 [7] Andrews R, J acques D, Rao A M, et al: Chemical Physics Letters, Vol. 40(1999), p. 467 [8] Venegoni D, Serp P, Feurer R, et al: Carbon, Vol. 40(2002), p. 1799 [9] Randall L Vander Wal, Thomas M Ticich and Valerie E Curtis: Journal of Physical Chemistry A , Vol. 104(2000), p. 7209

Simulation of a surface acoustic wave methane sensor Ping Sun 1, a, Xing Feng 1, b, Zhonghua Ou 2, c 1 Life and Physical Science College, Sichuan Agricultural University, Ya’an, China 2 University of Electronic Science andTechnology of China (UESTC), Chengdu, China aemail: sunping197725@163.com, bemail: scyalf@163.com, cemail: ozh@uestc.edu.cn Keywords: surface acoustic wave, gas sensor, methane, finite element analysis Abstract.
Sensitive materials reported in the literature have SnO2 [1,2], ZnO [3], Co3O4 [4] et al.
Taking into account the effects of these perturbations, the velocity of the acoustic wave are affected as follows [6]: (1) Where cm and ce are the sensitivity coefficients for mass and elasticity, ρs is mass per area,μ and λ are the shear and bulk moduli of the film, K2 is the electromechanical coupling coefficient, σs is the sheet conductivity of the film (σs=σh, where σ is the bulk conductivity and h is the coating thickness), Cs is the capacitance per length of the SAW substrate material (Cs=εs+εo, the permittivity of the substrate and the free space, respectively).
Simulation of SAW Methane Sensor In common sensitive polymeric material, polyisobutylene (PIB) is suitable for detection of alkanes.
Journal of the Chemical Society-Perkin Transactions Vol. 2 (1990), p. 1451-1460 [9] J.

Wireless Data Acquisition System for Vibrating Sensors Chen Shuangrui1,a, Yan Quansheng1,b , Chen Shuangcong2,c 1School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510640, China 2Department of Field Engineering, PLA University of Science and Technology, Nanjing, 210007, China aemail: javast@qq.com, bcvqshyan@scut.edu.cn, cmybridge@foxmail.com Keywords: vibrating wire sensor; bridge monitoring; wireless data acquisition system Abstract.
The limitation found in field tests in developed system including low efficiency of data transmission and battery usage will be complemented. 6 Acknowledgement In this paper, the research was sponsored by the National Nature Science Foundation of China (Project No. 51208208).
[2] Sung-Pil,Sungkon Kim.Online structural monitoring of cable-stayed bridge.Smart Structure and Materials. 1996,27(18):150~158
Online structural monitoring of cable-stayed bridge.Smart Structure and Materials.1996,27(18):150~158
[5] Vila.D.Muria, R.Gomez, C.King.Dynamic structural properties of cable stayed Tampico Bridge.Journal of Structural Engineering, ASCE. 1991, 117(11): 3396~3416

Spatial distribution of phosphorus fractions in the sediments of Meiliang Bay, Taihu Lake, China SONG Qianwen1,a, LI Yongfeng1,b , JIANG Xia2,c 1 Northeast Forestry University, Forestry Institute, Heilongjiang Haerbin, China 2 Chinese Research Academy of Environmental Sciences, Beijing, China a sookie_song@yeah.net, *b dr_lyf@163.com(Corresponding author), c jiangxia@craes.org.cn Keywords: TP; phosphorus fractions; sediment; SMT; Taihu Lake.
Materials and methods Study area.
Hazardous Materials Vol. 181 (2010) , P. 556–564
Liu: Chinese Journal of Environmental Science Vol. 27(2006), P. 1078-1082.

Experimental Work Material and Mix Design.
Table1 Mix design of RC Type Material(kg/m3) Water Cement Sand Gravel Rubber Water reduce RC-0 131.5 420 555 1296 0 5.0 RC-5 131.5 420 527 1296 11.68 5.0 RC-10 131.5 420 500 1296 22.95 5.0 RC-15 131.5 420 472 1296 34.66 5.0 Testing Procedure.
Acknowledgement The work is funded by National Natural Science Foundation of China (project number: 10872052) and the Science and Technology Projects of Guangdong Province (project numbers:  2009B011200003, 2009B011000020) References [1] BS Zhang, Nenad Bieanic, Chfistopher J.Pearce, etc.: Cem Concr Res Vol.32 (2002), p.363 [2] Malek K.
Naik: Waste Manage Vol.24 (2004), p. 563 [9] F.Hema’ndez-Olivares, G.Bariuenga, B.Parga-Landa: J Const Build Mater Vol.20 (2006), p. l [10] ZhuHan: Engineering Materials Vol. 2006.
(In Chinese) [13] H Zhu, CS Liu: Journal of Tianjin University Vol.40 (2007), p. 761 (In Chinese) [14] J Xiong, L Zheng, Y Yuan: Concrete (2004), p. 40 (In Chinese)