Time filter

Source Type

Jixi, China

Zhao H.,China Jiliang University | Liu L.,Jixi University
Proceedings of the 29th Chinese Control Conference, CCC'10 | Year: 2010

Precise identification of the temperature compensation of sensor is of significance for the improvement of the precise testing of the system. Neural network has such capacities as self-learning, adaptive and non-linear mapping. However, it is often slow in training speed, and is easy to be trapped in local minimum value. While, genetic algorithm (GA) has very strong, global optimization searching capability but it is insufficient in local searching. This paper has explored the utilization of GA-improved wavelet neural network to obtain the global optimal solution. The measured data under multiple temperature conditions have been referred to so as to carry out effective identification of the temperature compensation model of eddy current sensor. The result shows that this method is quick in operation, high in precision and strong in generality. It has very promising application prospect in the areas such as intelligent sensor modeling and compensation. Source

Li S.,Harbin Medical University | Wang K.,Harbin Medical University | Song C.L.,Jixi University | Cheng J.,South China University of Technology | Yang Z.R.,South China University of Technology
Advanced Materials Research | Year: 2010

This study described a different nano-titania(TiO2)/polymer composite where TiO2 were uniformly deposited on the porous poly(styrene-divinyl benzene-co-maletic anhydride) [poly(st-DVB-co-MAH)] microspheres. The morphology of the composite microspheres was analyzed by scanning electron microscope and X-ray diffraction. Both the diameter of the pore and the MAH functional groups played a crucial role in controlling the structure of TiO2 shell. The rutile nanoparticles were incorporated evenly onto the surface of the porous microspheres when microspheres with pore diameter of about 146.8 nm and with surface 30 wt% functional groups (MAH) were used as substrate. © (2010) Trans Tech Publications. Source

Liu M.,Harbin Normal University | Liu M.,Jixi University | Su Z.,Harbin Normal University | Shang Y.,Harbin Normal University
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

The title compound, (C3H5N2) 4[As6CuMo6O30], is made up of a centrosymmetric anionic cluster and four imidazolium cations. In the cluster, the central CuII atom is six-coordinated and lies on an inversion center. Adjacent clusters are linked via N - H⋯O hydrogen bonds between the imidazole cations and polyoxidoanions into a three-dimensional supra-molecular architecture. Source

Li S.,Harbin Medical University | Wang K.,Harbin Medical University | Zhang Z.R.,Harbin Medical University | Song C.L.,Jixi University | And 4 more authors.
Science China Chemistry | Year: 2010

Mesoporous titania-grafted poly(styrene-divinylbenzene)/maleic anhydride [P(St-DVB)/MA] nanocomposite microspheres were prepared by an open ring reaction method. The titania nanoparticles were first modified by attachment of amino groups to their surface to prevent particle aggregation, and to allow the nanoparticles to covalently bond the polymer microspheres, the surface of which was modified by attachment of MA functional groups to enable the polymer to retain their porous structures and to react with the amino groups on the surface of the titania particles. The porous nanocomposite microspheres were detected by FTIR, SEM, TEM, XRD and UV-Vis spectrophotometry. The results indicated that the nanocomposite microspheres were composed of nanosized titania uniformly distributed on the surface, and exhibited better UV absorbing property than pure polymer microspheres or unmodified titania. Furthermore, compared with pure porous polymer microspheres, the nanocomposite microspheres showed more efficient UV protection and slow release of Parsol-1789 (a photo-reactive and cosmetic agent) held inside the porous network of the microspheres. © Science China Press and Springer-Verlag Berlin Heidelberg 2010. Source

Liu G.,Jixi University | Peng H.,Tokyo Institute of Technology | Lehtonen M.,Aalto University | Degefa M.,Aalto University | And 4 more authors.
Proceedings - International Conference on Electrical and Control Engineering, ICECE 2010 | Year: 2010

De-icing schemes and operations for overhead power line in 10kV, 66kV and 220kV networks based on shunt capacitor over-compensation method are proposed in this paper. This novel de-icing method is based on characteristics of sinusoidal AC and theory of shunt capacitor over-compensation. By utilizing 10kV capacitor bank, which is installed as standard apparatus in substation, reactive current can be transmitted to the specific de-icing power line, which leads to over-compensation of network, and temperature of the power line will be increased. This de-icing scheme and operations are proved and verified in 10kV network by on-site experiments. Focus on characteristics and structure of power grid in China, this method is feasible to transferred and applied in 35kV, 66kV and 220kV networks. © 2010 IEEE. Source

Discover hidden collaborations