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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.

Song C.,Jixi University | Pi S.,Jixi No. 1 Middle School | Wang C.,Suifenhe Entry exit Inspection | Liu M.,Jixi University
Advanced Materials Research | Year: 2011

In order to further study the mechanism of hydrolysis reactions to sugars using cornstalk on plasma, preliminary study of reactive process are carried compounds of cornstalk components are chosen and hydrolyzed on plasma. Activation energy of elementary reactions, which are single-molecule reactions, free radical reactions and bimolecular reactions, are calculated by bond energy percentage rules. Elementary reactions and preliminary reaction mechanism model, which cornstalk hydrolyzes to sugars on plasma are identified. © (2011) Trans Tech Publications, Switzerland.

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.

Liu G.,Harbin Institute of Technology | Liu G.,Jixi University | Zhao X.-Z.,Harbin Institute of Technology | Wang L.-H.,Nanjing Southeast University | And 6 more authors.
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | Year: 2011

The inductance of a long distance HV overhead power line increases with the extension of the line. In order to decrease the total impedance of the power line and ensure the system could provide effective de-icing current by using the de-icing method based on capacitor compensation reactive current, the measure of connecting series capacitor banks to the de-icing line for compensating the line inductance is applied. With the capacitor terminal voltage increment by using capacitor compensation de-icing method, a mean of improving the capacitor voltage insulation level to ground and series-mounting multi-group capacitor banks to the de-icing line for partial voltage are proposed to solve the problem that the rated voltage of existing 10 kV capacitor banks can not satisfy the operation requirements, which is caused by capacitor over-voltage during the de-icing process. The voltage vector relationship of capacitor and line impedance with the length of de-icing line variation is given based on the analog low voltage circuit simulation. Furthermore, the specified scheme and calculation for de-icing 220 kV LGJ400 transmission line with utilizing 10 kV capacitor banks supplied by 10 kV power source is proposed.

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.

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.

Song C.,Jixi University | Song C.,Dalian Maritime University | Zhang Z.,Dalian Maritime University | Zhao W.,Jixi University | And 3 more authors.
Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology | Year: 2010

The graft polymer from cornstalk and methyl methacrylate (MMA) was obtained by microstream discharge plasma initiating and was characterized by means of Fourier transformed infrared spectroscopy (FT-IR), differential thermal analysis CDTA) and X-ray diffraction spectrum CXRD). The effects of discharge voltage, discharge gap distance, discharge duration, graft temperature, concentration of monomer on graft rate were investigated. The results showed that the graft rate was 35.2% under the conditions of N2 flux 0. 5 L/min, discharge voltage 2. 7 kV, atmospheric pressure 90 kPa, discharge gap distance 1. 66 mm, discharge duration 180 s, monomer volume fraction 62. 5%, polymerization temperature 50 °C, polymerization reaction time 2 h.

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.

Hu H.,Jixi University | Xu M.,Jixi University | Qi R.,Jixi University | Wang Y.,Jixi University | And 5 more authors.
International Journal of Clinical and Experimental Medicine | Year: 2015

The present study was designed to investigate the effects of sitagliptin on metabolic parameters as well as the expression levels of retinol-binding protein 4 (RBP4) and glucose transporter type 4 (GLUT4) in a rat model of type 2 diabetes mellitus. A rat model of type 2 diabetes mellitus was established by a combination of a high-fat diet and intraperitoneal injection of low-dose streptozotocin. Rats were divided into three groups: normal control group, diabetes group, and diabetes + sitagliptin group. Body weight, glycemic parameters, lipid profiles, fasting insulin (FINS) and serum RBP4 levels were assessed at baseline and after 6 weeks of therapy. Western blotting was used to detect the tissue RBP4 and GLUT4 expression levels. After treatment for 6 weeks, the diabetes + sitagliptin group displayed significantly improve levels of blood sugar, blood grease, and insulin sensitizing functions (P < 0.05) than the diabetes group. Sitagliptin markedly down regulated RBP4 expression levels and up-regulated GLUT4 expression levels in adipose tissue and skeletal muscle. The results indicate that sitagliptin can modulate the RBP4-GLUT4 system in adipose tissue and skeletal muscle. Modulation of the RBP4-GLUT4 system may be one of the mechanisms by which sitagliptin ameliorates the symptoms of type 2 diabetes mellitus. © 2015, E-Century Publishing Corporation. All Rights reserved.

Song C.L.,Jixi University | Pi S.G.,XING | Liu X.Y.,Jixi University | Xu H.B.,Jixi University
Journal of Physics: Conference Series | Year: 2013

In order to further study sugar-production mechanism in the crop stalk plasma reaction under the condition of streaming and discharging micro electric current with N2 and H2O as the electro-discharging gases, the active particles distribution is researched and analyzed. Through the study of methods and theories of statistical mechanics and statistica thermodynamics, the ionization process of the mixed discharging gas and the distribution features of the active particles changing with temperature in the plasma reactor are discussed. The constant pressure form of Saha equation that applies to this experiment is deduced. And the active particles generated in the dense ionization discharging process and the crop stalk conversion processes are also analyzed. The experimental results show that N2 and H2 can ionize synchronously. And it is found that during the crop stalk conversion process, while one gas is ionised, the other gas will not take the energy away, which will not affect the conversion. Among the discharging gases consisting of water vapour and nitrogen, the main components are ions of H2O +, H+, N2 + and molecules of N 2, H2O, which are all beneficial to a high sugar yield. © Published under licence by IOP Publishing Ltd.

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