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Suzhou, China

Cao J.-H.,Suzhou College
Proceedings - 2010 IEEE Youth Conference on Information, Computing and Telecommunications, YC-ICT 2010

A guaranteed cost control method for autonomous vehicle platoon with communication constraints (such as quantization, time-delay and packet-losses) is developed in this paper. Firstly, a vehicle model is established for the platoon's longitudinal movement, which is shown to be a great improvement of the existing models in that networked communication constraints are considered. Then, a guaranteed cost control algorithm is presented to overcome the communication constraints on the platoon. Under this controller, the platoon can be stable. The effectiveness of the proposed robust controller is demonstrated by simulation studies. © 2010 IEEE. Source

Zhang L.,Suzhou College | Ding Q.,Anhui University | Zhou Y.,Anhui University
Crystal Research and Technology

Flower-like hierarchical nanostructures of titanium dioxide (TiO 2) have been synthesized in large scale by a facile and controlled hydrothermal and after annealing process. The morphologies of flower-like hierarchical nanostructures are formed by self-organization of several tens of radially distributed thin flakes with a thickness of several nanometers holding a larger surface area. The materials are characterized by Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). The ultraviolet photocatalytic degradation of R6G dyes has been studied over this flower-like hierarchical nanostructures and the activity is compared with that of commercial P25 TiO2 under same conditions. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Peng W.-H.,Suzhou College
International Journal of Applied Environmental Sciences

Due to their large specific surface area and the high concentrations of activated alumina and silicon oxide, fly ashes (FAs) can be utilized to treat wastewater with their strong absorption ability. This paper presents ammonia removal effects related to multiple factors including dosing quantity, pH, and reaction time at room temperature, as well as the synthesized zeolites saturated with different cations (K+, Ca2+, Na+ etc.). The experimental results showed that higher ammonia removal efficiency can be obtained with more dosing quantity of zolites. When the dosing quantity of synthesized zeolite reached up to 10 g•L-1, the ammonia removal rate changed to be constant with an average ammonia removal rate of 65.16 %. The ammonia removal rate remained at a high level when pH was between 7 and 9 (the average value was 63.0 %) with a peak of 63.4% at pH = 9. The ammonia removal rate was positively correlated with reaction time before 15 minutes of reaction and tended to be stationary afterwards. The ammonia removal rate in methylamine wastewater treated by the six synthesized zeolites saturated with different cations was in the order as: Al-Z>Mg-Z>Ca-Z>Na-Z>Fe-Z>K-Z. © Research India Publications. Source

Yan G.,Suzhou College | Xuan H.,Nanjing University
Applied Physics Letters

Co-doped ZnO and CoO were prepared at 950 C by the solid-state reaction method, then were annealed in N2 flow at 950 C, and finally annealed in Zn vapor at 600 C or 800 C. The samples before annealing in Zn vapor have no ferromagnetism, but after annealing in Zn vapor, Co-doped ZnO and CoO both exhibit roomerature ferromagnetism. Through x-ray diffraction and element composition measurements, it was found that the ferromagnetism of Co-doped ZnO annealed in Zn vapor is extrinsic and comes from cubic Co5Zn 21 and/or cubic CoZn. © 2011 American Institute of Physics. Source

Ma Y.,Anhui University | Ding Q.,Anhui University | Yang L.,Chinese Academy of Sciences | Zhang L.,Suzhou College | Shen Y.,Anhui University
Applied Surface Science

Ag NPs were obtained by isopropyl alcohol restore silver nitrate with silicotungstic acid as a stabilizer under the condition of UV irradiation. From changing the amount of isopropyl alcohol and silver nitrate, we obtained Ag NPs of which plasmon peak was similar to the excitation wavelength, and the enhancement effect will be greatly improved. Enriching, degrading, and detecting dye molecular can be achieved by the simple SERS substrate, and the photo-degradation process was monitored by SERS successfully for the first time, and the sensitivity was improved compare to traditional detection by UV-vis spectroscopy. © 2012 Elsevier B.V. All rights reserved. Source

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