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Raman spectroscopy (RS), a rapid and non-invasive molecular spectroscopy, is proved to be a powerful tool for structure analysis of biological materials including nucleic acids, and presents great potential in the biomedical applications.
Materials and methods Calf thymus DNA was purchased from Sigma-Aldrich, and used without further purification.
Acknowledgements This work was financially supported by the Natural Science Foundation of Jiangxi Province (2010GQW0006) and National Natural Science Foundation of China (NSFC) (11264017).
Lai: Advanced Materials Research Vols. 554-556 (2012), p. 1816-1821 [3]S.Mahajan, J.Richardson, T.Brown, and P.N.Bartlett: J.AM.CHEM.SOC.
Vol. 100 (1996), p. 17412 [12]F.Cunha, J.R.Garcia, F.C.Nart, P.Corio, and M.Temperini: J Solid State Electrochem Vol. 7 (2003), 578 [13]L.Wu, H.C.Li, H.F.Zhao, Y.Sun, H.R.Xu, M.Lv, C.H.Yang, W.Z.Li, and Z.Q.Li: Chinese Journal of Analytical Chemistry Vol. 39 (2011), p. 1162 (in Chinese) [14]M.Green, F.M.Liu, L.Cohen, P.Köllensperger, and T.Cass: Faraday Discuss.

At the same time, the micro fracture formed in the stress strain concentrating zone will make mechanics characters of the rock bridge part materials weakening , therefore, for the sample, when the shearing stress reach the peak failure strength, the macroscopic integrality fragility shearing failure will appear along the main fracture plane .
Chinese Journal of Rock Mechanics and Engineering, 1992,11(2):190~199 [5] Liang Zuo-yuan, Zhu Wei-shen.
Discuss on shearing failure of the rock materials containing coplanar close intermittent joints under pressure shearing stress[A].
Beijing: Science Press, 1996, 89～92 [7] Bai Shi-wei, Ren Wei-zhong, Feng Ding-xiang.
Beijing :Chinese Science&Technology Press, 2000, 147～151.

Undercooling Behavior and Solidification Microstructure Evolution of Sn-Cu-Ni Solders Modified by Minute Amount of Mixed Rare Earth La-Ce Minbo Zhoua, Xiao Mab and Xin-Ping Zhangc School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China a minbo.zhou@mail.scut.edu.cn, bmaxiao@scut.edu.cn, cmexzhang@scut.edu.cn Keywords: Sn-Cu-Ni alloy, lead-free solder, mixed rare earth La-Ce, undercooling; microstructure evolution Abstract.
This research was supported by the Science and Technology Major Project of Guangdong Province (2009A080204005).
Delaplane: Journal of Non-Crystalline Solids.
Callister: Materials Science and Engineering-An Introduction (John Wiley & Sons, New York 2007) [12] C.M.L.
Wang: Materials Science and Engineering R-Reports.

Electrical and Physical Properties of Al and Nb Doped PbTiO3 Ceramic Thin Films Bo-Ping Zhang 1,a , Jing-Feng Li 2,b* , Yan Dong 1,c and Takashi Iijima 3 1 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P.R.
China; 2 State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R.
Doping content (x) / mol% 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Pb(Ti1-xAlx)O3 Pb(Ti1-xNbx)O3 Pb(Ti1-xAlx/2Nbx/2)O3 perovstite Perovskite+Pyrochlore Fig.2 c/a ratio of the perovskite phase for the Pb(Ti1-xAlx)O3, Pb(Ti1-xNbx)O3 and Pb(Ti1-x Alx/2Nbx/2)O3 thin films. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Doping content (x) / mol% c/a Pb(Ti1-xAlx)O3 Pb(Ti1-xNbx)O3 b(Ti1-xAlx/2Nbx/2)O3 acetate [Pb(CH3COO)2-3H2O] (99.9%, Nakarai), titanium iso-propoxide [Ti(O･(CH2)2･CH3)４] (70% in propanol, Azmax), aluminum tri-sec-butoxide [Al(C2H5CH(CH)3O)3] (97%, Aldrich), and niobium ethoxide [Nb(OC2H5)5] (99.95%, Aldrich) were used as the metal-organic materials, and 2-methoxyethanol [2-CH3OCH2CHOH] (99.7%, Aldrich) as a solvent.
Acknowledgments This work supported by the National High technology Program (863 Program) of China (Grant No. 2003AA302120) and Scientific Research Fund of University of Science and Technology Beijing (Grant No. 20030425990).
[12] Bo-Ping ZHANG, Takashi LIJIMA: Journal of the ceramic Society of Japan. 109[4] (2001), p. 299.

Erb, Thermal Stability of Electrodeposited Nanocrystalline Ni–Co Alloys, Material Science Engineering 433 (2006) 195–202
Science and Technology (2002) 5513–5520
Liu et al., Highly Ordered Snowflake like Metallic Cobalt Microcrystal, Journal Physical Chemistry 111 (2006) 163-167
Koch, Nanocrystalline Materials – Current Research and Future Directions, Hyperfine Interactions 130 (2000) 5-44
Alfantazi, Nanocrystalline cobalt–iron alloy: Synthesis and characterization, Materials Science and Engineering 550 (2012) 388– 394

However, as one difficult-to-machine material, large cutting force and serious cutting-tool wear occur when cutting S136.
A small amount of adhesive material was observed on the WC-Co friction surface, indicating that majority of the adhesive material was removed.
Acknowledgements This work was financially supported by the National Basic Research Program of China (973 Program, Grant No.2011CB706704); and the National Natural Science Foundation of China (NSFC, Grant No. 51305060); and China Postdoctoral Science Foundation Funded Project (Grant No. 2013M541223).
Mei-ying, Fracture Failure Analysis of S136 Steel Plastic Mold by EPMA, Journal of Chinese Electron Microscopy Society, 29(2010) 535-39
Sun, Friction and Wear Properties of Ti6Al4V/WC-Co in Cold Atmospheric Plasma Jet, Applied Surface Science, 259(2012) 616-23.

Part of petroleum based polymer materials could be replaced by PLLA, resulting a relief of pressure brought by reduction of petroleum resources and influence of white pollution[2].
Montmorillonite, hectorite and saponite are the layered silicates that are most commonly used in nanocomposite materials.Wu et al.[10] sucessfully prepared biodegradable PLLA/OMMT nanocomposites via solution blending process, OMMT was surface modified by CTAB and chitosan.
Journal of applied polymer science, 2010, 118,3 [12] Picard E, Espuche E, Fulchiron R..
Applied Clay Science, 2011, 53,1 [13] Lee, J.
Composites science and technology, 2007,67.

., Ningbo 315336,China 2Metastable Materials Science and Technology National Key laboratory,Qinhuangdao 066004,China 3School of Information and Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, China achenyueer2001@yahoo.com.cn, b zhouyunkai1986@163.com, cqupeixin@qq.com Keywords: reflectors of street lamps, multi-surface, computer simulation Abstract.
Acknowledgments This work is supported by Hebei Province Department of education science research project NO.2010164 References [1] I Hongjun, street lighting design and energy saving, Dalian Development Zone Planning Institute of Architectural Design,2010 [2] Edir, lighting technical manuals, Beijing Machinery Industry Press, 2003 [3] Zhiyang Ouyang Yu-xiang wave of yellow, ABS car more surface reflector headlamps Development ,2011 [4] Greatly Qin Chen Jun, road lighting illumination measurement, design application, VOL.8 • 2004 • NO.4 [5] ZHANG Jia-xin .Research on Street Lamps Optimization and Energy-saving Based on Mathematical Modeling.
JOURNAL OF ANHUI SCIENCE AND TECHNOLOGY UNIVERSITY. 2011, 25(1) [6] HAN Yun.

Preparation and photodegradation of humic acid by a Y3+-doped ZnO/TiO2 composite Zhiping ZHUa，Yi Zhoub College of Chemistry and Environment Engineering, Changsha University of Science and Technology, Changsha, 410076, China azzp8389@163.com; bzhouyihn@163.com Keywords: doping; composite; solid-phase synthesis; photoactivity Abstract：Aim to remove soluble humic acid (HA) in super-critical boiler make-up water, Y3+-doped ZnO/TiO2 composites were prepared using a solid-phase synthesis method, Their properties were characterized by x-ray diffraction, transmission electron microscopy, and UV-visible diffuse reflection spectroscopy (DRS); their visible light photoactivities were evaluated by the photodegradation of humic acid in an aqueous solution under sunlight irradiation..
Acknowledgments This work was supported by the National Natural Science Foundation of China (No. 20976016) and Natural Science Foundation of Hunan province (09JJ6067).
Science Vol.293 (2001), p269 [3] Son H S, Lee S-J, Cho I H, Zoh K D.
Chemical Engineering Journal Vol.144 (2008), P 509 [7] Zhang M L, An T C, Liu X L, Hu X H, Sheng G Y.
Materials Letters Vol. 64(2010), p1883

On-line analysis of the condensable products of biomass high temperature pyrolysis Lei Chen1,2,a, Xiaodong Zhang1,2,b*,Laizhi Sun1,2,c, XinpingXie1,2,d, Baofeng Zhao1,2,e, Hongyu Si1,2,f 1Energy Research Institute of Shandong Academy of Sciences, Jinan, China 2Key laboratory for biomass gasification technology of Shandong province, Jinan, China aleichen0922@gmail.com, bzhangxd@sderi.cn, csunlz@sderi.cn, dxiexp@sderi.cn, ezhaobf@sderi.cn, fsihy@sderi.cn *Corresponding author.
Material Sawdusts with the size of 0.2mm-0.3mm were selected as feed material, which were dried in an oven at 105˚C and stored in a vacuum desiccators for experiments.
Acknowledgments The work was supported by National Natural Sciences Foundation of China (No.51276104), Natural Science Foundation of Shandong Province (No.ZR2012EEM012 and No.
ZR2011BQ013)，Shandong science and technology development project（No. 2013GSF11609）.
Ceamanos, Kinetic study for the thermaldecomposition of cellulose and pine sawdust inan air atmosphere, Journal ofAnalytical and Applied Pyrolysis 39 (1997) 53–64