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Microstructure Analysis of In-Plane Quasi-isotropic Composites Reinforced by Multi-Direction and Multi-Layer Three Dimensional Fabric Lanying Liu a， Yanan Jiaob Composites Research Institute of Tianjin Polytechnic University & Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tianjin 300160, China aliuly_2010@163.com, bjiaoyn@tjpu.edu.cn Keywords: Multi-Direction, Multi-Layer, Microstructure, Unit cell Abstract.
Pat.NO.6,431,222 B1 to Nandan Khokar, designed a network-like woven 3Dfabric material includes select multilayer warp yarns occurring substantially linearly, the remainder multilayer warp yarns occurring in a helical configuration and two orthogonal sets of weft.
Acknowledgement The authors acknowledge the Tianjin Municipal Science and Technology Commission, China, for sponsorship of this research under the contract, No. 11ZCKFSF00500.
References [1] Jialu Li, Jianhua Yan, Lihua Xiao: Journal of Textile Research, 1994, 28(11), p. 34-39, In Chinese [2] Chaiyun Yang, Jialu Li: Journal of Donghua University, 2005, (10), p.53-58, In Chinese [3] Zhang Zhuo, Tianjin polytechnic university doctoral dissertation, In Chinese　 [4] Mansor H.Mohamed, A.Kadir Bilisik, U.
Patent 6,431,222B1. (2002) [8] Zhijian Hao, Xingfeng Guo, Qingen Chen: Journal of Textile Research, 2007, 28(1), p.48-50,In Chinese

Pavement Performance Prediction Model based on Weibull Distribution Ting Peng1, a,Xiaoling Wang2,band Shuanfa Chen3,c 1MOE Special Region Highway Engineering Lab, Chang’an University, Xi’an, 710064, China 2Xi’an Branch of the People’s Bank of China, Xi’an, 710004, China 3School of Materials Science and Engineering, Chang’an University, Xi’an, 710064, China apt@chd.edu.cn, xlwang_xa@163.cohmb, cchensf@chd.edu.cn Keywords: Pavement Performance; Prediction Model; Weibull Distribution.
In this model, and are influenced by pavement structure, material characters, traffic loads, climate and maintenance quality.
Tongji Daxue Xuebao/Journal of Tongji University, 38(8):1161 – 1164, 2010
Journal of Tongji University, 23(5):512–518, 1995
Journal of Testing and Evaluation, 39(3), 2011

Bearing capacity has been decreased, which lied in the two main reason: (1)material properties of concrete and steel is deteriorated after fire; (2)part of bridge structure is exposed to fire, which result in non-uniform temperature field, inner force distribution form is changed into irrational condition.
Cai Yue[1] had studied the material behaviors and mechanical model of pre-stressing concrete structure at high temperature.
Material properties of high temperature Table 1 shows that thermal performance of concrete and steel, According to the references[1,2], Thermal performance of concrete and steel including thermal conduction and specific heat and density is listed in Table 1 Table1 Thermal performance of concrete and steel Temp [°C] Thermal onduction of concrete[W/(m·°C)] Specific heat of concrete[J/(kg·°C)] Thermal conduction of steel [W/(m·°C)] Specific heat of steel[J/(kg·°C)] 20 1.6 850 53 612 200 1.5 939 50 612 400 1.3 1038 44 612 600 1.2 1136 34 612 700 1.0 1235 24 612 800 0.9 1334 24 612 Table2 shows that thermal performance of steel and concrete, According to the references[1,2], thermal performance of steel and concrete including thermal conduction and specific heat and density is listed in Table2 Table2 Mechanics performance of concrete and steel Temp [°C] Poisson Ratio for concrete strength reduction coefficient for concrete elastic modulus reduction coefficient for concrete
Reference: [1] Cai Yue., Dingye Huang and Xiongxue.Yu:Journal of Building Science Research Si Chuan.
Vol. 29(2003),p.82(in Chinese) [2] Bo Wu and Yuye Xu: China Civil Engineering Journal,Vol. 40(2007),p.30(in Chinese) [3] Ying Jiang: Harbin Engineering University(2006) [4] Daniel D C: Journal of Fire Safety,Vol.42(2007),p.139 [5] Xinmin Wang:People Communication Press(2007)

Because similar materials have the elastic-brittle failure characteristics, the point preceding the point mentioned above is the failure region.
[2] Ren D H, Zhang P: Journal of China Coal Society Vol. 13 (1998), p. 51- 53 (In Chinese)
[3] Du S G, Zhou Q L, Sun Y F: China Journal of Highway and Transport Vol. 10(1997), p.64-69 (In Chinese)
[4] Peng Jia, Chunan Tang, Tianhong Yang, et al: Journal of Northeastern University (Natural Science) Vol. 27 (2006), p. 1275- 1278 (In Chinese)
[6] Ming Xiao, Yanglei Wang: Chinses Journal of Rock Mechanics and Engineering Vol.19 (2002), p.2057-2060 (In Chinese)

Study on the Synthesis and Resolution of dl-Ephedrine Lin Hong-yan Hospital，Wuhan University of Technology Luoshi Road 205,Wuhan,430070,China E-mail: linhongyan@whut.edu.cn Keywords: dl-ephedrine;resolution; L-(-)-dibenzoyltartaric acid; D-(-)-ephedrine; L-(+)-ephedrine Abstract: For curing the common cold due to windcold , bosom frowsty cough, feng shui edema, bronchial asthma disease and etc, DL-ephedrine was synthesized by taking α-(Methylamino) propiophenone as the starting material followed reduction reaction.
Clinical Journal of Medical Officer,2010,38(4):666~668
Chinese Journal of Pharmaceuticals, 2000,31(12):534~535
West China Journal of Pharmaceutical Sciences, 2006,21(2):162~164
Chinese Journal of Medicinal Chemistry, 2008,18(3):195~199.

Experiment materials Experiment base metal.
Welding materials select H0Cr21Ni10 welding wire,its chemical composition are shown as table2: Table 2 Welding materials chemical composition(Wt % ) Materials brand C Si Mn S P Cr Ni H0Cr21Ni10 ≤0.06 ≤0.60 1.0~2.5 ≤0.02 ≤0.03 19.5~22 9~11 Experiment craft and methods Welding craft.
Journal of King Saud University – Engineering Sciences (2012),1-6.DOI:10.1016/j.jksues.2011.12.001
Materials Science and Engineering,A345 (2003) 1-7
Effect of TIG welding on corrosion behavior of 316L stainless steel[J].Materials Letters, 61 (2007) 2343–2346

Journal of Building Materials,2011,11(6):819-823
Construction and Building Materials, 2008, 22 (5): 837-840
Journal of building materials,2010,13(2):143-149
A multiscale micromechanics model for the autogenous- shrinkage deformation of early-age cement-based materials [J].
A multiscale micromechanics-hydration model for the early-age elastic properties of cement-based materials [J].

(In Chinese) [2] H.L.Chen, Y.X.Zhang and W.L.Yan: "The Technology of Finishing Process of Die Space Based upon Magnetic Abrasive Finishing", Key Engineering Materials, Vol.259-260(2004), p.657-661
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[5] R.K.Jain, V.K.Jain: The International Journal for Manufacturing Science & Production, Vol. 2(1999) No.1, p.55-68. [6] Z.X.Zhang: MATLAB Program Design and Application (TSINGHUA University Press, China, 2002).
[9] W.D.Zhong: Ferromagnetics (China Sciences Press, 2000).

In the present work, square Butt joint of Inconel 800 and AISI 310 dissimilar materials made by GTA welding technique using Inconel 600 filler wire.
Experimental procedure The base materials used in this study were 6 mm thick plates of AISI 310 steel and Inconel 800.
Kuo: Journal of Nuclear Materials, V. 335 (2004), p. 59
Ashrafizadeha: Journal of materials processing technology, Vol. 209 (2009), p. 3628 [5] Arivazhagan N, Surendra Singh, Satya Prakash and Reddy G.M: Materials Science & Engineering B Vol. 132 (2006), p. 222 [6] Kofstad P, high temperature corrosion, Elsevier Applied Sci, London, 1988; p 425
Kinugasa: Materials Science and Engineering A Vol. 120 (1989), p. 319

Materials and equipments Materials. 1-methyl imidazole (AR, Sinopharm Chemical Reagent Co., Ltd.); 1-butyl bromide (AR, Shanghai shanpu chemical Co., Ltd.); Acetonitrile (AR, Tianjin Kemiou Chemical Reagent Co., Ltd.); Potassium hydroxide (AR, Tianjin Fengchuan Chemical Reagent science And Technology Co., Ltd.); Ethyl acetate (AR, Sinopharm Chemical Reagent Co., Ltd.); Trench oil (self-control).
So the optimum amount of catalyst was for the quality of raw materials 3.0% oil.
Modern Food Science and Technology, 2008, 24(4): 378~380 (in Chinese)
Chinese Journal of Analysis Laboratory, 2004, 23(4): 8~11 (in Chinese)
Journal of Wuhan Polytechnic University, 2007, 25(4): 1~4, 12 (in Chinese)