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Photodegradation of 2-naphthalenesulfonate in Aqueous Catalyzed by N-doped TiO2 under Irradiation of Simulated Solarlight Guoqing Liu a, Le Chenb, Yuping Wangc* and Panying Pengd College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, P R China aLiuguoqingmr@126.com, bweidaxiaoxiao@126.com, cwangyuping@njnu.edu.cn, dpengpanying@njnu.edu.cn Keywords: 2-naphthalenesulfonate, N-doped TiO2, visible light, urea, photocatalysis.
The objective of this study is to investigate the influence synthesis conditions of the method on the structure and photoactivity of N/TiO2 and to find the optimal condition for photodegradation of 2-NS catalyzed with N/TiO2 under simulated solarlight irradiation.
We studied the effect of synthesis condition such as urea amount and calcination temperature on the structure and activity of photocatalysts under visible light irradiation.

Studie shown that the bioactivities of polysaccharide were interrelated intimately with its molecular structure and molecular weight [4].
Conclusion It was proved that the product yield of Grifola frondosa glucan could be increased using the method of complex enzyme hydrolysis extraction with a mild condition, protected the structure of glucan from destroyed and reserved the bioactivities effectively.
Industrial & Engineering Chemistry: Analytical Addition Vol.14 (1942), p.280-282

It indicates that planting melilotus offcinalia can effectively improve physical structure of soil, increase the porosity and optimize the ecological environment.
(2)Melilotus offcinalia can increase soil aggregates and porosity to improve the physical structure and permeability of soil, which will increase the land coverage, achieve the restoration of ecological environment and improve land productivity
[4] Y.LI, in: Conventional analysis methods of soil agricultural chemistry, edtied by Science Press, Beijing(1983), in press

Heat Efficiency of Trough Solar Vacuum Receiver Liang Junming1, Lu Jianfeng1,a, Ding Jing1, Yang Jianping2 1 School of Engineering Sun Yat-Sen University, Guangzhou 510006, Guangdong, China 2 School of Chemistry and Chemical Engineering South China University of Technology, Guangzhou 510640, Guangdong, China aliangjm35@mail2.sysu.edu.cn Keywords: solar parabolic trough collector; heat-conducting oil; vacuum receiver; heat loss; concentration ratio; heat efficiency Abstract The heat loss and thermal performance of solar parabolic trough vacuum receiver were experimentally measured and analyzed by heat transfer model.
Fig. 2 and Fig. 3 respectively present parabolic through solar receiver and the structure of vacuum receiver.
In order to achieve the test temperature, the system uses 20 kW electric heating device as heat source to heat heat-conducting oil, and the heat-conducting oil is YD-7000. 2 1 3 5 4 Fig. 1 Experimental apparatus Fig. 2 Parabolic through solar collector (1) heat-conducting oil storage tank, (2) pump, (3) flow meter, (4) vacuum receiver, (5) collector Ri Ro Qconv2 Qrad2 Qconv1 Qrad1 metal tube & selective absorbing coating glass tube T1 T2 Tsur Fig. 3 Structure of vacuum receiver Fig. 4 Heat transfer analysis of solar receiver The K-type thermocouples with uncertainty of 0.5 K are used as experimental temperature sensor, and Agilent-2620A is used as data acquistment to record the temperature. 

Along with the research, fractal theory has been widely applied on physics,chemistry,biology, astronomy, material science, computer graphics, economics and Philosophy and so on[2-6].
In this paper, combining with theoretical calculation of box dimension, quantitative analyses of the state are taken under different experimental conditions on the graphite distribution of microstructure images of the cross section and parallel pressed power side of copper matrix composites, and fractal dimension being estimated by use of linear regression model, expecting a theoretical basis and guidance could be provided for the structure of friction pairs and materials designs. 1.Material preparation Copper matrix composite material is sintered under fixed sintering temperature, sintering pressure and sintering density of material, after Sintered sample have been cut and milled，we use Quanta-200 scanning electron microscope ( SEM ) to observe of the microstructure of friction material.
Regression model is set up as: (2) Because Cu, graphite,Sn,Zn and SiO2 is not the same proportion, making the fractal dimension of structure image changing, the fractal dimension of parallel pressing force surface is looked as depe- ndent variable, the independent variable is the proportion of Cu, graphite, Sn, Zn and SiO2.

Polytype Inclusions in Cubic Silicon Carbide Remigijus Vasiliauskas1, a, Paulius Malinovskis2, b, Algirdas Mekys2, c, Mikael Syväjärvi1, d, Jurgis Storasta2, e, and Rositza Yakimova1, f 1Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden 2Institute of Applied Research, Vilnius University, LT 10222, Vilnius, Lithuania aremis@ifm.liu.se, bpaulius.malinovskis@ff.vu.lt, calgirdas.mekys@ff.vu.lt, dmisyv@ifm.liu.se, ejurgis.storasta@ff.vu.lt, froy@ifm.liu.se Keywords: 3C-SiC, polytype inclusions, supersaturation, charge carrier mobility.
In case with parallel TBs we have a different situation, which is due to the special structure of the TBs.
The TBs typically are decorated with smaller TBs which are parallel to the main one and the whole TB structure looks like a pine tree.

Natural Rubber source can be classified as high molecular weight hydro-carbon polymer materials which has chemical structure.
This is due to a lot of complex molecular chains which form strong bonds and structure [4].
Journal of Apply Chemistry, Vol.10, Pp. 296-305, (1960) [6] ASTM D5/D5 M-13.

Photoresponsive Nano-Coumarin with Indole Auxin Hormone Witsanu Sombat1, Kittiya Wongkhan1, Suwatchai Jarussophon2 and Rukkiat Jitchati1* 1Organometallic and Catalytic Center (OCC), Department of Chemistry, Faculty of Science, Ubon Ratchathani University, Warinchumrap, Ubon Ratchathani Province, 34190, Thailand 2National Nanotechnology Center, National Science and Technology Development Agency, 130 Thailand Science Park, Paholyothin Road, Klong Luang, Pathumthani, 12120 Bangkok, Thailand *rukkiat_j@hotmail.com Keywords: Photoresponsive, Coumarin, Indole, Auxin Abstract.
The structures of CM1 and CM2 were characterized by 1H, 13C NMR, IR and mass techniques which showed good agreement with their structures.

It can be seen that the raft structure has been formed at different condition.
The perfect and regular raft structure in the specimens without overheating or after overheating at 1100℃ can be an effective barrier confining dislocation activity leading to steady state creep.
Journal of Physics and Chemistry of Solids, 19(1961)35-50

This is related to the crystallization of glass and basalt fibers, during which the glass structure of the fiber is destroyed as a result of the development of the crystalline phase [3].
When approaching a temperature that depends on the cooling rate, it is also called a fictive temperature [7, 8], crystallization practically stops due to the rapid increase in viscosity and fixation of the frozen amorphous structure of the melt [5-7].
Physical chemistry of glasses, St.