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Nano-composite materials are multiphase materials obtained through the artificial combination of different materials in order to attain properties that the individual components by themselves cannot attain.
Materials and method Pure Al (99.7%), with particle size of 78 µm which has nearly spherical shape with some satellite sub-particles was used as a matrix material.
Tian, H. liu: Tribological properties of short fiber C/SiC Brake materials and 30CrSiMoVA mate.
Material science forum, Vol. 690, ( 2011)
Journal of materials Engineering and performance.

Materials and Methods UASB reactor: It had a total volume of 3.0L and contained three sampling ports and a gas outletatits top.
Puhakka, Sulfate Reduction Based Bioprocesses for the Treatment of Acid Mine Drainage and the Recovery of Metals, Engineering in Life Sciences, 7 (2007) 541-564
Spalková, Utilization of Biodiesel By-Products for Biogas Production, Journal of Biomedicine and Biotechnology, 2011 (2011) 1-15
Chamy, Desing and startup of an anaerobic fluidized bed reactor, Water Science Technology, 40 (1999) 63-70
Leão, Implications of volatile fatty acid profile on the metabolic pathway during continuous sulfate reduction, Journal of Environmental Management, 103 (2012) 15-23

Acknowledgements This work was financially supported by the Key Program of National Natural Science Foundation of China (51034003) .
YIN Shang-xian,WU Qiang,WANG Shang-xu.Hydrogelogical and mechanical basics of water inrush from karstic collapse columns in Northern China[J].Journal of china coal society,2004,29(2):182-185.
Journal of china coal society, 2004,29(2): 82-185.
Science in China Press, 2004:141-145.
BEIJING:China Building Materials Industry Press,2001.

So, the material was added with the same procedure to increase the mass of the sample (m≈300 ng).
Lefèvre, “A new PvT device for the thermoplastics characterization in extreme thermal conditions .,” Key Engineering Materials, vol. 557, pp. 1619–1627, 2013
Relationship between crystallization temperature, crystallinity and cooling conditions,” Journal of applied Polymer Science, vol. 16, pp. 1077–1091, 1972
Consideration of the isokinetic condition,” Journal of applied science, vol. 17, pp. 1031–10411973, 1973

Sealing Teeth Effects on Natural Frequencies of a Short Cylindrical Shell Yu Wang1,2,a, Haiyang Duan1,a, Gaoming Qin1,a, Zhong Luo1,a, Qingkai Han1,b* 1School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China 2School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan 114051, China awangyu435@126.com, b*qhan@mail.neu.edu.cn (corresponding author) Keywords: Short cylindrical shell, transfer matrix method, sealing teeth, natural frequencies Abstract.
In the case of homogeneous and isotropic material, the force resultants and the moment resultants , are related to middle surface displacements as follows (2) where, is the Young’s modulus, and is the Poisson’s ratio.
The geometric and material parameters of each segment are given in Table 1.
N090603007) and Natural Science Foundation of China (Grant No. 51175070).
References [1] Fanglin Zong, Yansheng Liu, Qiping Hu, State space method for axis-symmetrical bending problems of cylindrical shells with variable thicknesses, J Tsinghua Univ (Sci & Tech), 11(2008) 1845-1848 (in Chinese) [2] Xuebin Li, Energy method for free vibration analysis of ring-stiffened cylindrical shells, Journal of Ship Mechanics, 2(2001) 73-81(in Chinese) [3] Yu Xiang, The exact form of transfer matrix for analysis of free vibration of structures, Journal of Vibration and Shock, 2(1999):69–74.

Probabilistic Analysis of Corrosion-Induced Resistance Degradation of Reinforced Concrete Bridge Beam under Incomplete Information Lei Wanga, Yafei Mab and Jianren Zhangc School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha, 410004, China a leiwlei@hotmail.com, b mayafei563@163.com, c jianrenz@hotmail.com Keywords: Bridge Engineering; Reinforced Concrete; Beam; Resistance Degradation; Corrosion; Fuzziness; Randomness Abstract.
Considering the fuzziness, the nominal resistance of a bridge member is: (17) where is the fuzzy random function for resistance, is a fuzzy random variable considering the uncertainty coefficient of computation model, is the specified resistance function, and are the functions of material and geometrical property.
Acknowledgements This work reported here was conducted with the financial support from National Natural Science Fund of China under the Project No. 50908023 and No. 50878032.
Mahadevan: Journal of structual Engineering, Vol. 126(2000), pp. 612-619 [3] M.G.
Mezzina: Journal of Materials in Civil Engineering, Vol.20(2008), pp. 578-587

They transfer the force to the sliding block to punch the material.
Acknowledgements This work was financially supported by Ningbo Natural Science Foundation (2011A610146), Scientific Research Fund ation of Ningbo University (xkl09098).
References [1] Baohong Tong, Changlin Gui, Jun Sun and Xiaoyong Zhao: Journal of Hefei University of Technology(Natural Science), Vol. 10 (2006), p. 1192–1194 (In Chinese) [2] Baihong Huang: Steel Rolling, Vol. 5 (1990), p. 39–41 (In Chinese) [3] Kangping Zhen: Journal of Shanghai Institute of Railway Technology, Vol. 9 (1994), p. 84–88 (In Chinese) [4] Li Yong, Xiaobo An and Yufeng Zhang: Rolling Stock, Vol. 10 (2010), p. 29–33 (In Chinese) [5] Tiantai Guo: Machine Tool & Hydraulics, Vol. 2 (2004), p. 110–111 (In Chinese) [6] Wenbing Xu, Hongguo Xu, Huiwen Wan and Wei Chen: The World of Building Materials, Vol. 1 (2010), p. 79–83 (In Chinese) [7] Guangqin Chen, Kebao Xu and Aiqin Sun: Industry and Mine Automation, Vol. 3 (2011), p. 79–81 (In Chinese) [8] Miguel Angel Martínez Bohórquez, Juan Manuel Enrique Gómez, José Manuel Andújar Márquez: Solar Energy, Vol. 83 (2009), p. 883–890 [9] Chenxia Wu, Haichuan Zhang, Dongwei Xu and Zhongyang Liu: Instrument Technique and Sensor

Study on Measurement of Chromium Content in Ramie through UV Spectrophotometry Jianqiang Li1, Qingshan Pan2,a, Ruquan Zhang1,b and Xiaojie Zhou1 1Wuhan Textile University, Wuhan, Hubei 430073, China 2School of Science, Honghe University, Mengzi, Yunnan 661100, China a pqs1983@foxmail.com; bzhangruquan@wtu.edu.cn Keywords: UV Spectrophotometry; Diphenylcarbazide; Cr (VI) ions; Ramie Abstract: In this paper, UV spectrophotometry was used to test the chromium content of bast fiber of ramie and diphenylcarbazide (DPC) was used as color reagent.
If the ramie with high chromium content was used as textile material, it may cause some influences on the human body because the toxicity and carcinogenicity of hexavalent chromium are very high.
Inspection and Quarantine Science, Vol.14(2004).P.25 (In Chinese) [2] Wyszkowski, Mirosław, Radziemska.
Journal of Hazardous Materials, Vol.172(2009).P.1527 [5] Rudolf, Emil, Cervinka, et al.
Journal of Changde Teachers University.

Many material properties of polymers are strongly dependent on molecular weight, and are substantially changed by chain scission. 3.
Structural changes in the polymer, which will accompany the formation of small molecule products from the polymer, or may be produced by other reactions. 2.1 Materials and electron beam accelerator Thermofixed PET fabrics from Dupont (USA) used in this work was washed for 30 min in boiling water, thoroughly rinsed up to total removal of this latter and dried, and then irradiated with electron beam (EB) which carried out in the air under a Van De Graff 5MeV electron accelerator (Apont Company, Wuxi) with different dose: 50kGy, 100kGy, 200kGy, 400kGy. 2.2 Measurements The surface chemical structure of the fabrics was characterized by a Fourier transform infrared (FTIR) spectrometer (ThermoNicolet 8700, USA), equipped with a variable-angle attenuated total reflectance (ATR) accessory.
European Polymer Journal 44 (2008) 1567-1576
Journal of Applied Polymer Science, Vol. 112, 1199-1208 (2009) [14] Mervat S.
Applied Surface Science 241 (2005) 309–320

Sulfide and ash removal is the key when coal is used as fuel materials for direct carbon fuel cells.
As a clean and absorption performance of porous material, the extract residue of coal can be used as the carrier of catalyst, the decolorant for coloring matter, sorbent for metal ions and impurities, which have a wide application prospect [3, 4].
Acknowledgment This work was financially supported by the Nature Science Foundation of China(40772094), National High Technology Research and Development Program of China(863)(2007AA06Z221), Natural Science Research Project of Henan Province( 2010A530002), the Opening Project of Henan Key Laboratory of Coal Mine Methane and Fire Prevention(HKLGF200902).
[3] Zhang Daijun, Wang Fei, Li Xiaopen, Xian Xuefu, “Effect of solvent extraction on pore character and granularity of bituminous coal, ”Journal of Fuel Chemistry and Technology, vol. 32, no. 1, pp. 18-22, 2004
[4] Yuanyu Tian, Shuguan Sheng, Yajun Tian, “Coal unfreezing extraction and coal chemical group composition,”Journal of Taiyuan University of Technology, vol. 32, no. 6, pp. 555-558, 2001.