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| 1 | A network security situation prediction model based on wavelet neural network with optimized parameters显示文摘 | Haibo Zhang Qing Huang Fangwei Li Jiang Zhu | 2016 | Digital Communications and Networks2016,2,3: | 15 |
| 2 | Reputation-based secure spectrum situation fusion in distributed cognitive radio networks显示文摘In distributed cognitive radio(CR) network, the cooperative spectrum situation sensing based on consensus scheme may be disrupted by spectrum sensing data falsification(SSDF) attacks. In this paper, a secure spectrum situation fusion scheme based on reputation is proposed to counter attacks. The neighboring nodes of secondary users(SUs) get the corresponding dynamic trust value according to their behavior, which restrict the impact of the malicious behavior on the premise to ensure information interaction of normal nodes. Theoretical analysis and simulation results show that the consensus fusion scheme based on reputation has better performance than the existing algorithm which eliminates the neighboring node with the biggest deviation value from mean value. It demonstrates that the proposed scheme not only achieves better convergence properties but also has higher detection probability than the existing scheme in the process of spectrum situation fusion. | Li Fangwei Liu Fan Zhu Jiang Nie Yifang | 2015 | The Journal of China Universities of Posts and Telecommunications2015,22,3: | 6 |
| 3 | Tailoring interphase structure to enable high-rate, durable sodium-ion battery cathode显示文摘Na-based layered transition metal oxides with O_(3)-type structure have been considered to be promising cathodes for Na-ion batteries. However, the intrinsically limited Na-ion conductivity induced by the Otype Na-coordinate environment compromises their rate and cycle capability, hindering their practical application. Here, we report an interphase-structure tailoring strategy that improves the electrochemical properties of O_(3)-type layered cathodes achieved through surface coating and doping processes.Specifically, a Zr-doped interphase structure is designed in the model compound NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2) using the ionic conductor Na_(3)Zr_(2)Si_(2)PO_(12) as the surface coating material and Zr-dopant provider. We discover that the modified NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)cathode shows a stable Na-storage structure as well as an enhanced rate/cycle capability. Combined with theoretical calculations, it is suggested that the superior electrochemical performances originate from the Zr-doped interphase structure, which has an enlarged Na layer spacing that forms favorable Na-ion diffusion channels. This work highlights a general material interface optimization method which opens a new perspective for fabricating high-performance electrodes for Na-ion batteries and beyond. | Na Li Shaofei Wang Enyue Zhao Wen Yin Zhigang Zhang Kang Wu Juping Xu Yoshihiro Kuroiwa Zhongbo Hu Fangwei Wang Jinkui Zhao Xiaoling Xiao | 2022 | Journal of Energy Chemistry2022,31,5: | 4 |
| 4 | Insulating materials for realising carbon neutrality:Opportunities,remaining issues and challenges显示文摘The 2050 carbon-neutral vision spawns a novel energy structure revolution,and the construction of the future energy structure is based on equipment innovation.Insulating material,as the core of electrical power equipment and electrified transportation asset,faces unprecedented challenges and opportunities.The goal of carbon neutral and the urgent need for innovation in electric power equipment and electrification assets are first discussed.The engineering challenges constrained by the insulation system in future electric power equipment/devices and electrified transportation assets are investigated.Insulating materials,including intelligent insulating material,high thermal conductivity insulating material,high energy storage density insulating material,extreme environment resistant insulating material,and environmental-friendly insulating material,are cat-egorised with their scientific issues,opportunities and challenges under the goal of carbon neutrality being discussed.In the context of carbon neutrality,not only improves the understanding of the insulation problems from a macro level,that is,electrical power equipment and electrified transportation asset,but also offers opportunities,remaining issues and challenges from the insulating material level.It is hoped that this paper en-visions the challenges regarding design and reliability of insulations in electrical equipment and electric vehicles in the context of policies towards carbon neutrality rules.The authors also hope that this paper can be helpful in future development and research of novel insulating materials,which promote the realisation of the carbon-neutral vision. | Chuanyang Li Yang Yang Guoqiang Xu Yao Zhou Mengshuo Jia Shaolong Zhong Yu Gao Chanyeop Park Qiang Liu Yalin Wang Shakeel Akram Xiaoliang Zeng Yi Li Fangwei Liang Bin Cui Junpeng Fang Lingling Tang Yulin Zeng Xingtao Hu Jiachen Gao Giovanni Mazzanti Jinliang He Jianxiao Wang Davide Fabiani Gilbert Teyssedre Yang Cao Feipeng Wang Yunlong Zi | 2022 | High Voltage2022,7,4: | 4 |
| 5 | High-capacity lithium-rich cathode oxides with multivalent cationic and anionic redox reactions for lithium ion batteries显示文摘Lithium-rich cathode oxides with capability to realize multivalent cationic and anionic redox reactions have attracted much attention as promising candidate electrode materials for high energy density lithium ion batteries because of their ultrahigh specific capacity. However, redox reaction mechanisms, especially for the anionic redox reaction of these materials, are still not very clear. Meanwhile, several pivotal challenges associated with the redox reactions mechanisms, such as structural instability and limited cycle life, hinder the practical applications of these high-capacity lithium-rich cathode oxides. Herein, we review the lithium-rich oxides with various crystal structures. The multivalent cationic/anionic redox reaction mechanisms of several representative high capacity lithium-rich cathode oxides are discussed, attempting to understand the origins of the high lithium storage capacities of these materials. In addition, we provide perspectives for the further development of these lithium-rich cathode oxides based on multivalent cationic and anionic redox reactions, focusing on addressing the fundamental problems and promoting their practical applications. | Enyue Zhao Xiqian Yu Fangwei Wang Hong Li | 2017 | Science China Chemistry2017,60,12: | 3 |
| 6 | Polygonatum sibiricum polysaccharides protect against obesity and non-alcoholic fatty liver disease in rats fed a high-fat diet显示文摘Polygonatum sibiricum is a traditional medicinal and dietary plant of the family Liliaceae. The main functional macromolecules of P. sibiricum are polysaccharides, which function in antioxidation and regulating immunity. Previous studies have shown that insulin resistance(IR), oxidative stress, and inflammation are important factors in the induction of lipid metabolic diseases such as obesity. Therefore, in this study, we established a high-fat diet-induced rat model of obesity and nonalcoholic fatty liver disease(NAFLD) to explore the potential protective effect of P. sibiricum polysaccharides(PSPs) and the mechanisms behind it. After 4 weeks of high-fat diet feeding to induce obesity, the rats were treated with different doses of PSP solution or distilled water for 6 weeks. Compared with untreated obese rats, PSP-treated obese rats showed a decrease in body weight, serum total cholesterol, triglyceride, and low-density lipoprotein cholesterol levels, hepatic aspartate aminotransferase and alanine aminotransferase activity, hepatic malondialdehyde content, and hepatic levels of the pro-inflammatory factors tumor necrosis factor-α, interleukin-1β, and interleukin-6, as well as increased serum high-density lipoprotein cholesterol levels and hepatic superoxide dismutase, catalase, and glutathione peroxidase activity. Pathological analysis and immunoblotting of the liver tissues indicated that mechanistically, PSPs reduced obesity and NAFLD in rats by upregulating insulin receptor expression, increasing adenosine monophosphate-activated protein kinase phosphorylation, and downregulating sterol regulatory element-binding protein 2 and low-density lipoprotein receptor expression, thus promoting lipid metabolism, decreasing body weight, and reducing inflammation and oxidative stress caused by lipid accumulation. Based on these results, PSPs may have the potential to reduce obesity and NAFLD associated with a high-fat diet. | Li Zeng Fangwei Zhong Zhiliang Chen Gengxi Li Qi Zhu | 2022 | Food Science and Human Wellness2022,11,4: | 3 |
| 7 | Designing HVDC GIS/GIL spacer to suppress charge accumulation显示文摘To suppress the charge accumulation on the spacer surface in direct current(DC)gas insulated transmission line(GIL)is an important and emergent issue for the development of a clean,safe and economic smart grid.A design method of the DC spacer is proposed,and a spacer prototype is prepared and evaluated both by simulation and type test.The DC withstand voltage test and polarity reversal test are performed using the new DC spacer compared with a commercialised 220 kVAC spacer.The simulation results indicate that the surface electric field and surface charge of the DC spacer are lower than those of the alternating current(AC)spacer under DC voltage.The test results verify that the surface flashover voltage of this DC spacer is higher than that of the AC spacer.The potential feasibility of the spacer design for HVDC is discussed.It is hoped that the content of this paper can bring new ideas in the development of HVDC gas insulated equipment. | Zuodong Liang Chuanjie Lin Fangwei Liang Weijian Zhuang Yujia Xu Lingling Tang Yulin Zeng Jun Hu Bo Zhang Chuanyang Li Jinliang He | 2022 | High Voltage2022,7,4: | 2 |
| 8 | The effective propagation constants of SH wave in composites reinforced by dispersive parallel nanofibers显示文摘In the present paper, the effective propagation constants of elastic SH waves in composites with randomly distributed parallel cylindrical nanofibers are studied. The surface stress effects are considered based on the surface elasticity theory and non-classical interfacial conditions between the nanofiber and the host are derived. The scattering waves from individual nanofibers embedded in an infinite elastic host are obtained by the plane wave expansion method. The scattering waves from all fibers are summed up to obtain the multiple scattering waves. The interactions among random dispersive nanofibers are taken into account by the effective field approximation. The effective propagation constants are obtained by the configurational average of the multiple scattering waves. The effective speed and attenuation of the averaged wave and the associated dynamical effective shear modulus of composites are numerically calculated. Based on the numerical results, the size effects of the nanofibers on the effective propagation constants and the effective modulus are discussed. | QIANG FangWei WEI PeiJun LI Li | 2012 | Science China(Physics,Mechanics & Astronomy)2012,55,7: | 2 |
| 9 | Resource and trajectory optimization in UAV-powered wireless communication system显示文摘The unmanned aerial vehicle(UAV) is a promising enabler of Internet of Things(IoT) owing to its highly flexible features. Combined with wireless power transfer(WPT) techniques, a UAV can provide energy for IoT nodes, which can extend the lifetime of energy constrained communication systems. This paper studies resource and trajectory optimization in UAV-powered wireless communication systems, which consists of two UAVs and two ground nodes(GNs). The system works in a way that the two UAVs alternately charge the two GNs through wireless power transfer and two GNs also alternately send their information to the corresponding UAV with the harvested energy, which can effectively reduce the interference while receiving the information of GNs. Aiming to maximize the minimum throughput of two GNs, wireless resource and UAVs’ trajectories are jointly optimized with the constraints of UAV collision avoidance, flying speed, and transmit power. Successive convex programming(SCP) and block coordinate descent(BCD) are utilized to solve the optimization problem. Simulation results show that the proposed scheme achieves larger minimum throughput than the benchmark scheme. | Weidang LU Peiyuan SI Fangwei LU Bo LI Zilong LIU Su HU Yi GONG | 2021 | Science China(Information Sciences)2021,64,4: | 2 |
| 10 | Numerical simulation study of air distribution law of air pressure system in the mine refuge chamber显示文摘 | Fangwei Li Longzhe Jin Zina Zhan | 2012 | Journal of Theoretical and Applied Information Technology2012,45,1: | 1 |
| 11 | Neutralization of interleukin-17A delays progression of silica-induced lung inflammation and fibrosis in C57BL/6 mice显示文摘 | Ying Chen Cuiying Li Dong Weng Laiyu Song Wen Tang Wujing Dai Ye Yu Fangwei Liu Ming Zhao Chunwei Lu Jie Chen | 2013 | Toxicology and Applied Pharmacology2013,,: | 1 |
| 12 | Numericalsimulation on the impacting and comminuting of coal based on LS-DYNA显示文摘 | Li Fangwei Li Yanhuan Xu Zhenliang | 2008 | Journal of Coal Science and Engineering2008,14,4: | 1 |
| 13 | Atomic Structure of Li<sub>2</sub>MnO<sub>3</sub> after Partial Delithiation and Re‐Lithiation显示文摘 | Rui Wang Xiaoqing He Lunhua He Fangwei Wang Ruijuan Xiao Lin Gu Hong Li Liquan Chen | 2013 | Adv Energy Mater2013,,10: | 1 |
| 14 | Distribution of Triatomines,the Vector of Chagas Disease--Southern China,2016−2018显示文摘What is already known on this topic?Triatomines,also known as kissing bugs,are widespread vectors for Chagas disease which affects 6-8 million people worldwide.Two species of triatomines have been previously reported in China.What is added by this report?This study showed data from the first investigation of triatomine distribution in China.Triatoma rubrofasciata and a novel species of triatomine in 170 habitats in 30 cities in southern China were recorded in this investigation.What are the implications for public health practice?Considering the worldwide spread of Chagas disease and new species of trypanosomiasis,strengthening the monitoring of triatomines and their associated diseases in southern China is vital to prevent and control these diseases. | Qin Liu Fangwei Wu Yunliang Shi Wencheng Lu Hanguo Xie Yunhai Guo Dan Zhu Yuanyuan Li Yi Zhang Xiao-nong Zhou | 2020 | China CDC weekly2020,2,33: | 1 |
| 15 | Tuning anionic redox activity to boost high-performance sodium-storage in low-cost Na_(0.67)Fe_(0.5)Mn_(0.5)O_(2) cathode显示文摘Na-based layered iron-manganese oxide Na_(0.67)Fe_(0.5)Mn_(0.5)O_(2) containing only low-cost elements is a promising cathode for Na-ion batteries used in large-scale energy storage systems.However,the poor cycle stability restricts its practical application.The capacity decay of Na_(0.67)Fe_(0.6)Mn_(0.5)O_(2) mainly originates from the irreversible anionic redox reaction charge compensation due to the high-level hybridization between oxygen and iron.Herein,we rationally design a surface Ti doping strategy to tune the anionic redox reaction activity of Na_(0.67)Fe_(0.5)Mn_(0.5)O_(2) and improve its Na-storage properties.The doped Ti ions not only enlarge the Na migration spacing layer but also improve the structure stability thanks to the strong Ti-O bond.More importantly,the d0-shell electronic structure of Ti^(4+) can suppress the charge transfer from the oxidized anions to cations,thus reducing the anionic redox reaction activity and enhancing the reversibility of charge compensation.The modified Na_(0.67)Fe_(0.5)Mn_(0.5)O_(2) cathode shows a reversible capacity of 198 mA h g^(-1) and an increased capacity retention from 15% to 73% after about1 month of cycling.Meanwhile,a superior Na-ion diffusion kinetics and rate capability are also observed.This work advances the commercialization process of Na-based layered iron-manganese oxide cathodes;on the other hand,the proposed modification strategy paves the way for the design of high-performance electrode materials relying on anionic redox reactions. | Jianyue Jiao Kang Wu Na Li Enyue Zhao Wen Yin Zhongbo Hu Fangwei Wang Jinkui Zhao Xiaoling Xiao | 2022 | Journal of Energy Chemistry2022,31,10: | 1 |
| 16 | Fast searching Algorithm for Vector Quantization Based on Subvector Technique显示文摘 | CHEN Shan-xue LI FangWei ZHU WeiLe | 2008 | IEICE TRANS INF & SYST2008,91,7: | 1 |
| 17 | Twist, an independent prognostic marker for predicting distant metastasis and survival rates of esophageal squamous cell carcinoma patients显示文摘 | Fangwei Xie Kun Li Xuenong Ouyang | 2009 | Clinical & Experimental Metastasis2009,,8: | 1 |
| 18 | 1,3?β?Glucan affects the balance of Th1/Th2 cytokines by promoting secretionof anti?inflammatory cytokines in vitro显示文摘 | Ying Chen Lei Dong Dong Weng Fangwei Liu Laiyu Song Cuiying Li Wen Tang Jie Chen | 2013 | Molecular Medicine Reports2013,,2: | 1 |
| 19 | Fast encoding algorithm for vector quantization based on subvector L_2-norm显示文摘A fast encoding algorithm based on the mean square error (MSE) distortion for vector quantization is introduced. The vector, which is effectively constructed with wavelet transform (WT) coeffcients of images, can simplify the realization of the non-linear interpolated vector quantization (NLIVQ) technique and make the partial distance search (PDS) algorithm more effcient. Utilizing the relationship of vector L2-norm and its Euclidean distance, some conditions of eliminating unnecessary codewords are obtained. Further, using inequality constructed by the subvector L2-norm, more unnecessary codewords are eliminated. During the search process for code, mostly unlikely codewords can be rejected by the proposed algorithm combined with the non-linear interpolated vector quantization technique and the partial distance search technique. The experimental results show that the reduction of computation is outstanding in the encoding time and complexity against the full search method. | Chen Shanxue Li Fangwei Zhu Weile | 2008 | Journal of Systems Engineering and Electronics2008,19,3: | 1 |
| 20 | Numerical simulation on the impacting and eomminuting of coal based on LS-DYNA 显示文摘 | Li Fangwei Li Yanhuan Xu Zhenliang | 2008 | Journal of Coal Science and Engineering2008,14,4: | 1 |