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An interesting form of nano-structure is the socalled quantum dots, which can be grown in some solution, on a substrate, or embedded in a host material.
In some cases a periodic arrangement of similar in size and shape quantum dots can be achieved, either on the surface of a substrate (2D) arrangement, or layers of 2D periodic quantum dots embedded in a host material and stacked (3D arrangement).
Also it is possible to produce two quantum dots of similar shape and close together, the resulted structure is referred as quantum dot molecule.[4-5] Apart from the choice of the constituent materials it is possible to choose the size and shape of each dot and also the distance between the QDs.
Weiss, Science 307, (2005) 538
[7] Rodríguez-Bolívar S, Gómez-Campos F M, Carceller J E, Journal of Applied Physics 104, (2008) 104309

The material of the cladding determines the best remove it.
From Snell’s law with an angle of refraction equal to, the critical angle depends only on the refractive indices and of the core and cladding materials, respectively: There are no transmission losses during light propagation except for the intrinsic absorption of the fiber material.
[3] Pabitra Nath “A novel fiber optic sensor probe with enhanced sensitivity” Current science, V.100, No.4, 25 Feb.2011
Mukherjee “Development of evanescent wave absorbance- based fiber optic biosensor” PRAMANA Indian Academy of Sciences, Journal of physics ,Vol.75,No.6,pp.1099-1113, 2010

., Materials Science Forum 778-780 (2014) pp. 595-598 [3] C.
Banzhaf et al., Materials Science Forum 778-780 (2014) pp. 742-745 [4] G.
Kawada et al., Japanese Journal of Applied Physics 49 (2010) pp. 101301-1-4

Study on Environment-Friendly Epoxy Emulsion Modified by Two Silane Coupling Agents Wenlu Guo1,a, Hanqing Lu1,b, Hongchun Zhou1,c and Wei Hu1,d 1School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212003, China a guowl1954@163.com, blhq-0525@163.com, calexzhou1987@126.com, dstena.1986@163.com Keywords: Silane coupling agent, Environment-friendly, Epoxy emulsion, Modified Abstract.
Experimental Materials.
Fig.4 The FTIR spectrum Fig.5 TG curve of raw materials and copolymers Thermogravimetric analysis.
Journal of Applied Polymer Science, 2010, 118(4): 1979-1989

Study on cross section geometry of preform for the forming laws of a symmetrical rib-web component Menghan Wanga,Zhimin Xub, Yufeng Lic,Jie Zhou College of Material Science and Engineering，Chongqing University，Chongqing，40044,China awmh9792@163.com,bxzm-418@163.com,cliyufeng11@126.com Keywords: thin web-high rib preform；aluminum alloy part；metal flow； Abstract：In order to reveal the forming laws，eliminate the forming defects appearing in the typical aluminum alloy web-rib parts，two types of preforms have been used in the final forging with numerical simulation software.Based on the simulation，the comparisons of metal flow，effective strain distribution are obtained between the two types of preforms applied in the final forging process, the forming laws of a symmetrical rib-web component have been obtained ,and the forming mechanism of defects often happened in web- rib parts also has been analyzed,the relationship between the fillet radius and metal flow velocity/ final load was obtain
At present，the forging method is popular applied in the aluminum alloy component with rib-web structure，because the metal flow line is distributed along their geometric shape，the metal flow lines in the important locations to be cut off .However，the material flow is more complicated and difficult to predict in the process of forming the rib-web parts.
The material of the web always contacts with the die，with the force from the die, the compressed metal shifts its flow toward the rib areaas as the upper die pressing down.So the large pressure makes the metal produce enough plastic deformation in the region of the web.But the metal of rib appears rigid flow，there is no enough plastic deformation in the rib region.
Acknowledgements The authors would like to thank the support from Natural Science Foundation of Chongqing Key Project (No. 2009BA4065).
[10] Feng Li,Jun Feng Lin,Guan Nan Chu，The Chinese Journal of Nonferrous Metals.7（2009）1197-1202（in Chinese）.

Drug Release Behaviors of a pH/Temperature Sensitive Hydrogel Bead with Core-Shelled Structure Kuilin Deng*, Lirong Dong, Yu’e Shi, Yubo Gou, Qian Li, Shuliang Wang College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China Tel: +86-0312-5971137; Fax: +86-0312-5079525; E-mail address: dkl369@hbu.edu.cn Keywords: pH/temperature sensitive, Core-shelled structure, Drug release behavior, Poly(N-acryloylglycinate).
Among the smart materials, pH and temperature sensitive hydrogels have been paid more attention because the two physiological factors are important for the human body.
Experimental Section Materials.
The detailed results about PAG are to be published in the other journal.
Acknowledgements The authors are grateful for the financial support from the Hebei Natural Science Foundation of China (B2008000573) References [1] I.

Modern Natural Science. 1 (2008) // http://www.rae.ru/use/pdf/2008/1/11.pdf [3] S.A.
Collofello, Stochastic simulation of risk factor potential effects for software development risk management// Journal of Systems and Software. 2001.
Applied Mechanics and Materials. 379 (2013) 207-213 [7] T.Yu.
Science review 5 (2013) 169-172 [8] T.
Applied Mechanics and Materials. 379 (2013) 220-223 [9] Ju.

Introduction Solid phase assay systems are widely used for the detection and/or determination of biological and chemical materials (ligands), such as enzymes, proteins, DNA, and toxic materials [1,2,3].
Nakano (Graduate School of Bioagricultural Science, Nagoya University, Japan).
Vol. 125 (2003), p. 6848-6849 [9] C.M.Pradier, M.Salmain, L.Zheng and G.Jaouen: Surface Science Vol. 502-503 (2002), p. 193-202 [10] S.A.Trammell, L.Wang, J.M.Zullo, R.Shashidhar and N.Lebedev: Biosensors and Bioelectronics Vol. 19 (2004), p. 1649-1655 [11] A.M.Noubhani, W.Dieryck, S.Chevalier and X.Santarelli: Journal of Chromatography A Vol. 968 (2002), p. 113-120

Materials and Methods The Lower Yellow River measured data between 1960 and 2008 are used in this article.
Second: the material composed of channel is fine particle silt.
When the flow is strong, the material is easy to be erosion and deposition.
Sheng, Model of water-sediment regulation in Yellow River and its effect, Science China-Technological Sciences, 4 (2011) 924-930
Guo, Shaping and maintaining a medium-sized main channel in the lower Yellow River, International Journal of Sediment Research, 3 (2012) 259-270

Methods and Result The main materials and equipment.
Acknowledgements This work was funded by grants from The Natural Science Foundation of Heilongjiang Province (D201027 and D201134) and The Foundation of Qiqihar Science and Technology Bureau (SF2010-06).
Journal of Chinese Materia Medica.
Vol.36:(2011), p. 1670-1674 [2] X.D.Qi,J.C.Hou H.T.Yu, C.J.Zhang: 20(S)-Ginsenoside-Rh2 and 20(R)-Ginsenoside-Rh2 activate IkappaB phosphorylation expression in human lung adenocarcinoma A549 cells.Advanced Materials Research.Vol. 260-270 :(2011), p. 1205-1210 [3] D.D.Li, L.L.Wang, R.Deng: The pivotal role of c-Jun NH2- terminal kinase-mediated Beclin 1 expression during anticancer agents induced autophagy in cancer cells.Oncogene.