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| 1 | N-doped carbon nanotubes supported CoSe_(2) nanoparticles:A highly efficient and stable catalyst for H_(2)O_(2) electrosynthesis in acidic media显示文摘Electrocatalytic oxygen reduction reaction(ORR)provides an attractive alternative to anthraquinone process for H_(2)O_(2) synthesis.Rational design of earth-abundant electrocatalysts for H_(2)O_(2) synthesis via a two-electron ORR process in acids is attractive but still:very challenging.In this work,we report that nitrogen-doped carbon nanotubes as a multi-functional support for CoSe2 nanoparticles not only keep CoSe_(2) nanoparticles well dispersed but alter the crystal structure,which in turn improves the overall catalYtic behaviors and thereby renders high O_(2)-to-H_(2)O_(2) conversion efficiency.In 0.1 M HClO_(4),such CoSe_(2)@NCNTs hybrid delivers a high H_(2)O_(2) selectivity of 93.2% and a large H_(2)0_(2) yield rate of 172 ppm·h^(-1) with excellent durability up to 24 h.Moreover,CoSe_(2)@NCNTs performs effectively for organic dye degradation via electro-Fenton process. | Longcheng Zhang Jie Liang Luchao Yue Zhaoquan Xu Kai Dong Qian Liu Yonglan Luo Tingshuai Li Xiaohong Cheng Guanwei Cui Bo Tang Abdulmohsen Ali Alshehri Khalid Ahmed Alzahrani Xiaodong Guo Xuping Sun | 2022 | Nano Research2022，15，1： | 2 |
| 2 | Adversarial Attacks on Content-Based Filtering Journal Recommender Systems显示文摘Recommender systems are very useful for people to explore what they really need.Academic papers are important achievements for researchers and they often have a great deal of choice to submit their papers.In order to improve the efficiency of selecting the most suitable journals for publishing their works,journal recommender systems(JRS)can automatically provide a small number of candidate journals based on key information such as the title and the abstract.However,users or journal owners may attack the system for their own purposes.In this paper,we discuss about the adversarial attacks against content-based filtering JRS.We propose both targeted attack method that makes some target journals appear more often in the system and non-targeted attack method that makes the system provide incorrect recommendations.We also conduct extensive experiments to validate the proposed methods.We hope this paper could help improve JRS by realizing the existence of such adversarial attacks. | Zhaoquan Gu Yinyin Cai Sheng Wang Mohan Li Jing Qiu Shen Su Xiaojiang Du Zhihong Tian | 2020 | Computers, Materials & Continua2020，，9： | 2 |
| 3 | Mechanism on improved surface flashover performances in vacuum of epoxy resin using fluorocarbon plasma treatment显示文摘To improve the insulation,strength of materials is a permanent topic in the fields of high voltage and insulation,and surface insulation is one of the difficulties.Research shows that the surface fluorination by a non-equilibrium plasma is a promising method to enhance the surface flashover characteristics of insulating materials.However,the de-terminants of flashover characteristics are so many that the mechanism is not well known.This paper aims to find out the reasons for the surface insulation improvement and optimise the plasma process parameters.The epoxy resin surfaces are modified by a fluorocarbon plasma,and the flashover voltages in vacuum and secondary electron emission yield are tested experimentally.Combined with the state of the art and the authors'previous work,the mechanism of improved surface flashover performances is investigated in depth from three aspects:the plasma process parameters,the surface physical and chemical properties and the surface electrical performances.A compre-hensive understanding of the mechanism is concluded,of which the whole processes from the plasma surface modification of materials to the surface insulation performances are taken into account.It is hopeful to promote the practical applications of plasma fluorination in electrical engineering through the findings of this paper. | Sile Chen Tao Cheng Zhaoquan Chen Guanjun Zhang | 2022 | High Voltage2022，7，3： | 2 |
| 4 | Polyacrylate- core/TiO-shellnanocomposite particles prepared by in situ emulsion polymerization显示文摘 | Zhaoquan Ai Guilin Sun Qilong Zhou | 2006 | Appl Polym Sci2006，，102： | 1 |
| 5 | Advance in Study on High - Solid Emulsion Polymerization 显示文摘 | AI ZHAOQUAN LIAO SHUIJIAO LI JIANZHONG | 1996 | Synth Resin and Plast1996，19，6： | 1 |
| 6 | Polyaerylate-core/TiOz-shell nanocomposite particles prepared by in situ emulsion polymerization 显示文摘 | Ai Zhaoquan Sun Guilin Zhou Qilong | 2006 | Journal of Applied Polymer Science2006，102，： | 1 |
| 7 | Preparation of SiC ceramics by aqueous gelcasting and pressureless sintering显示文摘 | Tao Zhang Zhaoquan Zhang Jingxian Zhang Dongliang Jiang Qingling Lin | 2006 | Materials Science & Engineering A2006，，： | 1 |
| 8 | Joint Optimal Subcarrier and Power Allocation for Wireless Cooperative Networks Over OFDM Fading Channels显示文摘 | WANG Di LI Zhaoquan WANG Xin | 2012 | IEEE Transac- tions on Vehicular Technology2012，61，1： | 1 |
| 9 | Three-dimensional numerical simulation of surface-wave plasma source 显示文摘 | LAN Chaohui CHEN Zhaoquan LIU Minghai | 2009 | Plasma Science and Technology2009，11，： | 1 |
| 10 | Polyacrylatecore/TiO2-shell nanocomposite particles prepared by in situ emulsion polymerization显示文摘 | Zhaoquan Ai Guilin Sun Qilong Zhou | 2006 | Journal of Applied Polymer Science2006，102，： | 1 |
| 11 | High solid content latex: preparation methods and application显示文摘 | Ai Zhaoquan Rui Deng Zhou Qilong | 2010 | Adv Colloid Interfase2010，159，1： | 1 |
| 12 | Adversarial Attacks on License Plate Recognition Systems显示文摘The license plate recognition system(LPRS)has been widely adopted in daily life due to its efficiency and high accuracy.Deep neural networks are commonly used in the LPRS to improve the recognition accuracy.However,researchers have found that deep neural networks have their own security problems that may lead to unexpected results.Specifically,they can be easily attacked by the adversarial examples that are generated by adding small perturbations to the original images,resulting in incorrect license plate recognition.There are some classic methods to generate adversarial examples,but they cannot be adopted on LPRS directly.In this paper,we modify some classic methods to generate adversarial examples that could mislead the LPRS.We conduct extensive evaluations on the HyperLPR system and the results show that the system could be easily attacked by such adversarial examples.In addition,we show that the generated images could also attack the black-box systems;we show some examples that the Baidu LPR system also makes incorrect recognitions.We hope this paper could help improve the LPRS by realizing the existence of such adversarial attacks. | Zhaoquan Gu Yu Su Chenwei Liu Yinyu Lyu Yunxiang Jian Hao Li Zhen Cao Le Wang | 2020 | Computers, Materials & Continua2020，，11： | 1 |
| 13 | 3D origami electrochemical immunodevice for sensitive point-of-care testing based on dual-signal amplification strategy显示文摘 | Chao Ma Weiping Li Qingkun Kong Hongmei Yang Zhaoquan Bian Xianrang Song Jinghua Yu Mei Yan | 2015 | Biosensors and Bioelectronics2015，，： | 1 |
| 14 | 显示文摘 | Dong Manjiang Mao Xiaojian Zhang Zhaoquan | 2009 | Ceram Int2009，35，4： | 1 |
| 15 | Polyacrylate-core/TiO2-shell nanocomposite particles prepared by insitu emulsion polymerization显示文摘 | Zhaoquan Ai Guilin Sun Qilong Zhou | 2006 | Journalof Applied Polymer Science2006，102，： | 1 |
| 16 | Polyacrylate - core/TiO2 - shell nanocomposite particles prepared by in situ emulsion polymerization 显示文摘 | Zhaoquan Ai Guilin Sun Qilong Zhou | 2006 | Journal of Applied Polymer Science2006，102，： | 1 |
| 17 | Ordered SrTiO_3 Nanoripples Induced by Focused Ion Beam显示文摘Ordered nanoripples on the niobium-doped SrTiO_3 surfaces were fabricated through focused ion beam bombardment. The surface morphology of the SrTiO_3 nanoripples was characterized using in situ focused ion beam/scanning electron microscopy. The well-aligned SrTiO_3 nanostructures were obtained under optimized ion irradiation conditions. The characteristic wavelength was measured as about 210 nm for different ion beam currents. The relationship between the ion irradiation time and current and SrTiO_3 surface morphology was analyzed. The presented method will be an effective supplement for fabrication of SrTiO_3 nanostructures that can be used for ferroelectric and electronic applications. | Jiang Wu Gang Chen Zhaoquan Zeng Shibin Li Xingliang Xu Zhiming M.Wang Gregory J.Salamo | 2012 | Nano-Micro Letters2012，4，4： | 0 |
| 18 | Numerical Study of Oil Pollution on Sea Waters显示文摘This paper adopted an upstream FEM of 2-D unsteady flow to calculate the tidal flow in Zhoushan sea area. Based on the verification of the tidal current and environmental situation, the effects of the oily waste discharged from the oil berths on water quality have been calculated with a similar method. The isodilutions of oil pollutant are drawn from different sewage discharges. The moving loci of the slick centrepoint of oil spill have been calculated. The spreading area of the oil spill has also been forecasted. The results indicate that the set of models can predict the transport of oil spill in the sea area with reasonable accuracy. | Geng Zhaoquan , Ni Yongqiang and Zhou Anguo Senior Engineer, Zhejiang Provincial Institute of Estuarine and Coastal Engineering Research, Hangzhou Engineer, Zhejiang Provincial Institute of Estuarine and Coastal Engineering Research, Hangzhou Engineer, Zhejiang Institute of Environmental Protection Science, Hangzhou | 1992 | China Ocean Engineering1992，7，1： | 0 |
| 19 | Surveillance Video Key Frame Extraction Based on Center Offset显示文摘With the explosive growth of surveillance video data,browsing videos quickly and effectively has become an urgent problem.Video key frame extraction has received widespread attention as an effective solution.However,accurately capturing the local motion state changes of moving objects in the video is still challenging in key frame extraction.The target center offset can reflect the change of its motion state.This observation proposed a novel key frame extraction method based on moving objects center offset in this paper.The proposed method utilizes the center offset to obtain the global and local motion state information of moving objects,and meanwhile,selects the video frame where the center offset curve changes suddenly as the key frame.Such processing effectively overcomes the inaccuracy of traditional key frame extraction methods.Initially,extracting the center point of each frame.Subsequently,calculating the center point offset of each frame and forming the center offset curve by connecting the center offset of each frame.Finally,extracting candidate key frames and optimizing them to generate final key frames.The experimental results demonstrate that the proposed method outperforms contrast methods to capturing the local motion state changes of moving objects. | Yunzuo Zhang Shasha Zhang Yi Li Jiayu Zhang Zhaoquan Cai Shui Lam | 2021 | Computers, Materials & Continua2021，，9： | 0 |
| 20 | Numerical simulation of three-dimensional fracturing fracture propagation in radial wells显示文摘A fracture propagation model of radial well fracturing is established based on the finite element-meshless method.The model considers the coupling effect of fracturing fluid flow and rock matrix deformation.The fracture geometries of radial well fracturing are simulated,the induction effect of radial well on the fracture is quantitatively characterized,and the influences of azimuth,horizontal principle stress difference,and reservoir matrix permeability on the fracture geometries are revealed.The radial wells can induce the fractures to extend parallel to their axes when two radial wells in the same layer are fractured.When the radial wells are symmetrically distributed along the direction of the minimum horizontal principle stress with the azimuth greater than 15,the extrusion effect reduces the fracture length of radial wells.When the radial wells are symmetrically distributed along the direction of the maximum horizontal principal stress,the extrusion increases the fracture length of the radial wells.The fracture geometries are controlled by the rectification of radial borehole,the extrusion between radial wells in the same layer,and the deflection of the maximum horizontal principal stress.When the radial wells are distributed along the minimum horizontal principal stress symmetrically,the fracture length induced by the radial well decreases with the increase of azimuth;in contrast,when the radial wells are distributed along the maximum horizontal principal stress symmetrically,the fracture length induced by the radial well first decreases and then increases with the increase of azimuth.The fracture length induced by the radial well decreases with the increase of horizontal principal stress difference.The increase of rock matrix permeability and pore pressure of the matrix around radial wells makes the inducing effect of the radial well on fractures increase. | WANG Tianyu GUO Zhaoquan LI Gensheng MA Zhengchao YONG Yuning CHANG Xin TIAN Shouceng | 2023 | Petroleum Exploration and Development2023，50，3： | 0 |
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