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This suggests that, among the factors that determine nucleation of calcium phosphate on silicon, surface electrical charge could play a key role Introduction Micro-Electro-Mechanical Systems (MEMS) devices has received great attention since their appearance in the early nineties because of the impact in innumerable areas that require sensors or actuators in micro- and nano-scale, such as analytical chemistry, biology an biochemistry, and biomedical fields.
MEMS are fabricated using materials and processes familiar to the microelectronic industry based on the silicon technology, taking advantage of the capability in producing miniaturized structures.

Numerical Simulation For Migration Of The Pollutants In Soil HU Ge 1,a , PENG Shuai1,b , WANG Wei 1,c 1 College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China a huge@cqu.edu.cn,b huge1@cqu.edu.cn, ccquhuge@163.com Keywords: Simulation, Migration, Pollution Detection Abstract.
There are many factors affect the diffusion of volatile pollutants, such as the soil porosity, soil structure, soil moisture, soil sorption and so on.

This improvement is due to the emergence of the space lattice structure of the material and a small degradation versus dose 198 kGy.
,Ionizing radiation effect studies on polyamide 6.6 properties, Radiation Physics and Chemistry, 2004, pp. 267-269

Synthesizes and Properties research of 1-(1,2-dimethyl-7-azaindole-3-yl)-2-[2-methyl-5-(4-chlorphenyl)-3-thienyl]perfluorocyclopentene Zhiyuan Sun, Congcong Zhang and Shouzhi Pu* Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science & Technology Normal University Nanchang 330013, P.
The structure of 1o was characterized by 1H NMR. 1H NMR (400 MHz, CDCl3, ppm): δ 1.78 (s, 3H, –CH3), 2.08 (s, 3H, –CH3), 3.82 (s, 3H, –NCH3), 7.10–7.13 (m, 1H), 7.29–7.36 (m, 3H), 7.38 (s, 1H), 7.48 (d, 1H), 7.90 (d, 1H), 8.33 (d, 1H).

Experiment and Simulation of TC4 Alloy Rods subject to Laser Shock Processing Ruifang Chen1,a, Yuxiao Chen1,b, Yinqun Hua1,2,c 1School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013,China 2School of Chemistry & Environment, Beijing University of Aeronautics and Astronautics, Beijing, 100083, China acrf0504@yahoo.com.cn, bchenyuxiao0912@163.com, chuayq@ujs.edu.cn Keywords: Laser Shock Processing; Residual Stress; Numerical Simulation; TC4 Alloy Rod; Abstract.
It produces modification of the original surface, internal organizational structure and stress state, improves strength of materials, fatigue resistance, wear-resistant and stress corrosion resistant[1,2].

Upconversion Emission of Infrared Excited Er 3+ -Doped Transparent Glass Ceramics Containing CaF2 Nano-Crystals Daqin Chen, Yuansheng Wang∗ and Yunlong Yu The State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences; Graduate School of Chinese Academy of Sciences, Fuzhou, Fujian 350002, China Keywords: oxyfluoride glass ceramics, Er3+ doping, Nano-crystal, Upconversion Abstract.

Eco-friendly of Hibiscu cannabinus L. fibers dyeing with natural dye Sudaporn Tangkawanit Department of Chemistry, Faculty of Science, Ubon Ratchathani Rajabhat University, Ubon Ratchathani 34000, Thailand, Email : tangkawa@yahoo.com Keywords: natural dyes, mordant, Hibiscus cannabinus L., Caesalpinia sappan L., fastness properties Abstract This research was an intensive study on development of Hibiscus cannabinus L. fibers dyeing with natural dyes.
Brazilin Brazilein Figure 1 Chemical structure of brazilin and brazilein Hibiscus cannabinus L. is a plant in the Malvaceae family. 

Introduction Titanium carbide (TiC) , with cubic crystal structure of NaCl type, has many outstanding properties such as high hardness (2170-2800 kg mm-2 ), low density (4.93 g/cm3), high melting point (3067°C), high elastic modulus (410-450 GPa) and thermal stability[1, 2, 3].
Kim: Materials Chemistry and Physics, 88 (2004) 23-26

FABRICATION OF POROUS ALUMINA CERAMICS BY SPARK PLASMA SINTERING METHOD Dae Ho Choi, Kai Kamada, Naoya Enomoto, Junichi Hojo and Soo Wohn Lee* Department of Applied Chemistry, Faculty of Engineering, Kyushu University Motooka, Nishi-ku, Fukuoka 819-0395, JAPAN *Department of Electron Materials, Faculty of Engineering, Sunmoon University Kalsan-ri, Tangjeong-myeon, Asan-si, Chungnam, 336-708, KOREA choidh@cstf.kyushu-u.ac.jp, jhojo@cstf.kyushu-u.ac.jp Keywords: porous alumina, carbon black, SPS, porosity Abstract.
The vacuum sintering of the mixture of alumina and carbon black, and subsequent heat treatment in air leads to a homogeneous porous structure interconnected by well-defined alumina grains.

In the Eq.(1), the factor di is higher, mini structures is more in the surface microcosmic morphology and fractal dimension is greater.
zhejiang University Press,2005   [6]Sun Xia, Wu Ziqin, Fractal theory and application,Hefei:Chinese science and technology university Press,2003 [7]Chen zhixin,Liu ying, Fractal Interpolation Simulation of Surface Profile Processed by Excimer Laser and d Worth’s Influence, Nanchang University journal,2002,24(4):31-34 [8] Li chenggui, Fractual study of surface by finish lathe, Hydromechatronics Engineering, 1998, 1:50-52 [9] Gan ben,Huang yi-jian, Geometry Fractal Characteristics of Milled Surface Profiles, Journal of Huaqiao University ( Natur al Science), 2010.31(4):371-377 [10] Yang da-yong,Liu ying, Fractal Characterization of Two Grinding Surfaces,Journal of Nanchang University, 2007, 29(3) : 243～245 [11] Shen Hua, The theoretical and experimental research on high speed and high precision machining of miniature mold cavity Based on the fractal theory [D]，Tianjin university and of technology and education, 2012 [12] Yusuf Altintas,CNC technology and manufacturing automatic,chemistry