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Zhang L.,Suzhou College | Ding Q.,Anhui University | Zhou Y.,Anhui University
Crystal Research and Technology | Year: 2011

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.

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

Peng W.-H.,Suzhou College
International Journal of Applied Environmental Sciences | Year: 2013

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.

Zhang W.,Suzhou College | Song Q.,Suzhou College
Chongqing Daxue Xuebao/Journal of Chongqing University | Year: 2015

The average per-hop distance is one of the factors which affect the positioning accuracy in DV-Hop algorithm. Aiming at positioning errors caused by the average distance per hop, the average distance per hop of anchor nodes and unknown nodes have been improved and optimized in this paper. First, the average per hop distance of anchor nodes is computed by introducing genetic algorithm; Then the average distance per hop of the unknown node is weighted by using the average distance per hop of anchor nodes which hop count is less than or equal to 3 to reduce errors caused average distance per hop. Ultimately the accuracy of positioning is improved. Simulation results show that without additional hardware cost, the improved algorithm can effectively improve the positioning accuracy of the algorithm and has good stability. ©, 2015, Chongqing Medical University. All right reserved.

Yan G.,Suzhou College | Xuan H.,Nanjing University
Applied Physics Letters | Year: 2011

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.

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 | Year: 2013

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.

Zhang Y.,Suzhou College | Huang S.,Suzhou College
Proceedings of the 3rd International Conference on Environmental Technology and Knowledge Transfer | Year: 2010

Urban landscape river has become an important part of Chinese urbanization process. In this papar, on the basis of the water quality monitoring, gray clustering method which selects the indexs of SD, CODMn, TP and TN is used to evaluate the eutrophication of Tuohe River in Suzhou city. The results indicate that this method is simple and reliable. It can improve availability of information and the water quality of Tuohe River in Suzhou city had been placed in Middle-eutrophication (IV) that the management is urgent.

Zhang K.,Suzhou College | Zhang Y.,Anhui Normal University
Electroanalysis | Year: 2010

We present a new strategy for the label-free electrochemical detection of DNA hybridization based on gold nanoparticles (AuNPs)/poly(neutral red) (PNR) modified electrode. Probe oligonucledotides with thiol groups at the 5-end were covalently linked onto the surface of AuNPs/PNR modified electrode via S-Au binding. The hybridization event was monitored by using differential pulse voltammetry (DPV) upon hybridization generates electrochemical changes at the PNR-solution interface. A significant decrease in the peak current was observed upon hybridization of probe with complementary target ssDNA, whereas no obvious change was observed with noncomplementary target ssDNA. And the DNA sensor also showed a high selectivity for detecting one-mismatched and three-mismatched target ssDNA and a high sensitivity for detecting complementary target ssDNA, the detection limit is 4.2 10 12 M for complementary target ssDNA. In addition, the DNA biosensor showed an excellent reproducibility and stability under the DNA-hybridization conditions. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

An electrochemical sensor has been constructed for the determination of adriamycin (ADM) that is based on a glassy carbon electrode modified with silver nanoparticles and multi-walled carbon nanotubes with carboxy groups. The modified electrode was characterized by scanning electron microscopy and exhibits a large enhancement of the differential pulse voltammetric response to ADM. Signals are linear with the concentrations of ADM in the range from 8.2 × 10 -9 M to 19.0 × 10 -9 M, with a detection limit of 1.7 × 10 -9 M. The sensor is highly reproducible and exhibits excellent stability. It was to detect calf thymus DNA. © Springer-Verlag 2010.

Han L.-F.,Anhui Medical University | Xu H.-F.,Suzhou College
International Journal of Theoretical Physics | Year: 2012

We propose a three-party scheme for probabilistically teleporting an arbitrary two-qubit state. In the scheme, a one-dimensional five-qubit cluster-class state is utilized as the quantum channel. The sender performs two Bell-state measurements (BSMs) on the qubits at hand and the controller makes a single-qubit measurement. With the sender's and the controller's helps, the receiver can reconstruct the original state with a certain probability by introducing an auxiliary qubit and making appropriate unitary operations. Moreover, the total success probability and classical communication cost of the present scheme are also calculated. © 2012 Springer Science+Business Media, LLC.

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