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| 1 | Foveated glasses-free 3D display with ultrawide field of view via a large-scale 2D-metagrating complex显示文摘Glasses-free three-dimensional(3D)displays are one of the game-changing technologies that will redefine the display industry in portable electronic devices.However,because of the limited resolution in state-of-the-art display panels,current 3D displays suffer from a critical trade-off among the spatial resolution,angular resolution,and viewing angle.Inspired by the so-called spatially variant resolution imaging found in vertebrate eyes,we propose 3D display with spatially variant information density.Stereoscopic experiences with smooth motion parallax are maintained at the central view,while the viewing angle is enlarged at the periphery view.It is enabled by a large-scale 2D-metagrating complex to manipulate dot/linear/rectangular hybrid shaped views.Furthermore,a video rate full-color 3D display with an unprecedented 160°horizontal viewing angle is demonstrated.With thin and light form factors,the proposed 3D system can be integrated with off-the-shelf purchased flat panels,making it promising for applications in portable electronics. | Jianyu Hua Erkai Hua Fengbin Zhou Jiacheng Shi Chinhua Wang Huigao Duan Yueqiang Hu Wen Qiao Linsen Chen | 2021 | Light(Science & Applications)2021,10,11: | 14 |
| 2 | Electronic structures of the oxygenated diamond (100) surfaces显示文摘By means of first principles method on the basis of density functional theory (DFT), the equi- librium geometries and density of states (DOS) of the two oxygenated diamond (100) surfaces, bridging model and on-top model are calculated. The results indicate that there are no surface states located in the band gap of the bridging model of oxygenated dia- mond (100) surface, and the occupied surface states in the valence band are attributed to the non-bonded O 2p orbital, O 2p and C 2p bonding orbitals, and C 2p and H 1s bonding orbitals. By contrast, for the on-top model of oxygenated diamond (100) surface, the unoccupied surface states exist in the band gap, which originate from non-bonded C 2p and O 2p or- bitals. In addition, the occupied surface states in the valence band are induced by non-bonded O 2p or- bital and the C==O π bond. | LIU Fengbin WANG Jiadao LIU Bing LI Xuemin CHEN Darong | 2006 | Chinese Science Bulletin2006,51,20: | 3 |
| 3 | Sunway supercomputer architecture towards exascale computing:analysis and practice显示文摘In recent years,the improvements of system performance and energy efficiency for supercomputers have faced increasing challenges,which create more intensive demands on the architecture design for realizing exascale computing.This paper first analyzes the main requirements of exascale computing on the aspects of the parallel computing application and supercomputing center operation.Afterwards,a mapping scheme of'demands-challenges-architecture'is proposed.Then,the major challenges of exascale supercomputer,such as scalability,power consumption,data movement,programming and availability,are thoroughly analyzed,and the corresponding appropriate solutions are proposed.Moreover,this paper proposes the Sunway computer architecture towards exascale computing in which the many-core processor,network chipset and software system are all domestically-designed.The technology roadmap of Sunway supercomputer will hold the comprehensive design methods for the architecture,including the processor,interconnect network,assembly structure,power supply,cooling system,system software,parallel algorithm and application support,promising great advances for exascale supercomputing. | Jiangang GAO Fang ZHENG Fengbin QI Yajun DING Hongliang LI Hongsheng LU Wangquan HE Hongmei WEI Lifeng JIN Xin LIU Daoyong GONG Fei WANG Yan ZHENG Honghui SUN Zhou ZHOU Yong LIU Hongtao YOU | 2021 | Science China(Information Sciences)2021,64,4: | 3 |
| 4 | Treatment of constipation-predominant irritable bowel syndrome by focusing on the liver in terms of Traditional Chinese Medicine:a meta-analysis显示文摘OBJECTIVE:To assess the efficacy of Traditional Chinese Medicine(TCM)on constipation-predominant irritable bowel syndrome by focusing on the liver.METHODS:Databases(domestic and foreign)were searched with the key words'irritable bowel syndrome','constipation',and'Chinese medicine';the relevant articles were retrieved and evaluated.Cure rate,'remarkable efficacy',recurrence rate and the incidence of adverse reactions were the outcome indicators.Review Manager ver 5.1 was used for this meta-analysis,and funnel plots used to detect publication bias.RESULTS:Nineteen randomized controlled trials were included and 1510 patients involved.The treatment guided byTCM based on the liver was superior to Western Medicine[odds ratio(OR)=2.46,95%confidence interval(CI)1.80,3.35)],cure rate[OR=2.61,95%CI(1.93,3.52)],remarkable efficacy[OR=2.68,95%CI(1.82,3.95)],recurrence rate[OR=0.19,95%CI(0.12,0.29)]and the incidence of adverse reactions[OR=0.24,95%CI(0.09,0.65)].However,funnel plots showed publication bias.CONCLUSION:Compared with Western Medicine,the treatment of IBS-C based on the liver is significantly better but the results must be treated with caution because publication bias was recorded. | Qianwen Li Fengbin Liu Zhengkun Hou Di Luo | 2013 | Journal of Traditional Chinese Medicine2013,33,5: | 3 |
| 5 | Electronic Structure and Physical Characteristics of Dioxin Under External Electric Field显示文摘Dioxin is a highly toxic and caustic substance,which widely existed in the atmosphere,soil and water with tiny particles.Dioxin pollution has become a major problem that concerns the survival of mankind,which must be strictly controlled.The bond length,bond angle,energy,dipole moment,orbital energy level distribution of dioxin under the external field are investigated using DFT(density functional theory)on basis set level of B3LYP/6-31G(d,p).The results indicate that with the increase of the electric field,the length of one Carbon-Oxygen bond increases while another Carbon-Oxygen bond decreases.The energy gradually decreases with the electric field,while the change of the dipole moment has an opposite trend.In the infrared spectra,the vibration frequency decreases with the electric field increasing and shows an obvious red shift.Moreover,the ultraviolet-visible absorption spectra under different electric fields are analyzed with TD-DFT(time-dependent density functional theory)method.The wavelength of the strongest absorption peak increases and occurs red shift with the increase of the electric field.All the above results can provide reference for further research on the properties of dioxin under different external electric field. | Wenyi Yin Xiangyun Zhang Bumaliya Abulimiti Yuzhu Liu Yihui Yan Fengbin Zhou Feng Jin | 2018 | Computers, Materials & Continua2018,,4: | 2 |
| 6 | TESTING LINEAR AND NONLINEAR GRANGER CAUSALITY IN CSI300 FUTURES AND SPOT MARKETS BASED ON NEW CONCEPTS OF NONLINEAR POSITIVE/NEGATIVE SPILLOVER显示文摘Hiemstra and Jones(1994) argued that a significant negative value of their nonlinear Granger causality test(H-J test) means there is a confounding effect in the prediction.However,from the theoretical analysis and Monte Carlo simulations,the authors find that H-J test is significantly negative under the circumstance of negative volatility spillover.Furthermore,the authors put forward the conceptions of positive/negative nonlinear spillover,and apply H-J test to examine positive/negative nonlinear spillover effect.The empirical study on China stock futures and spot markets shows that:1) There is significant positive nonlinear spillover from futures to spot market;2) There is significant negative nonlinear spillover from spot to futures market.The authors argue that there is 'risk absorption' mechanism in information spillover from the spot market to the futures market,which is due to the temporal transfer of speculative trading from the analysis. | ZHOU Pu LU Fengbin WANG Shouyang | 2014 | Journal of Systems Science & Complexity2014,27,4: | 2 |
| 7 | Equilibrium geometric structure and electronic properties of Cl and H_2O co-adsorption on Fe(100) surface显示文摘Based on the first principles density functional theory,the equilibrium geometric structure and surface electronic properties of Cl and H2O co-adsorption on the Fe(100) surface are investigated.The results indicate that the optimal adsorption site for Cl and H2O co-adsorption on the Fe(100) surface is the location of Cl at the bridge site and H2O at the top site.Compared with the Fe(100)/H2O adsorption system,remarkable changes in geometric structure and electronic properties occur,owing to the presence of Cl in the Fe(100)/(H2O+Cl) adsorption system.The analysis of equilibrium geometric structure and surface electronic properties shows that the presence of Cl in the Fe(100)/(H2O+Cl) adsorption system unstablizes the Fe surface,making it easy to lose electrons. | ZHAO Wei WANG JiaDao LIU FengBin CHEN DaRong | 2009 | Chinese Science Bulletin2009,54,8: | 2 |
| 8 | Recent advances in hollow metal-organic frameworks and their composites for heterogeneous thermal catalysis显示文摘Hollow metal-organic frameworks(Ho MOFs)as emerging materials have been arousing great interest in heterogeneous catalysis with respect to the solid counterparts,mainly because of their unique and intriguing features such as high surface to volume ratio,large void space,short channel length,and more exposed active sites.To achieve diverse catalysis,it is of great importance to combine Ho MOFs with other active components for constructing smart composites.In this review,the recent advances in Ho MOFs and their composites for heterogeneous catalysis are summarized.Firstly,the synthetic strategies for various Ho MOFs with single shell,double shells or multiple shells are summarized,while their composites with yolk-shell,hollow sandwich and hollow satellite structures are described.Secondly,various catalytic reactions over Ho MOFs and their composites are discussed,and moreover,the relationships among the active components,structures and their performances are illustrated.Thirdly,the potential challenges and future development on Ho MOFs-based nanocatalysts are proposed.This review will bring some insights for better design and fabrication of heterogeneous nanocatalysts with the well-defined hollow structures. | Haowu Wang Fengbin Zheng Guangxin Xue Yinglong Wang Guodong Li Zhiyong Tang | 2021 | Science China Chemistry2021,64,11: | 2 |
| 9 | Effect of a single weak lithological structure on the height of a collapsing roof in a deep soft rock roadway显示文摘Besides the cross sections of roadways and the tendency and obliquity of roadway axes, the major controlling factors affecting the height of a collapsing roof include the weak lithological structure of surrounding rocks. This thesis analyzes the effect of two single and weak lithological structures of both sides and the roof on the height of a collapsing roof in a deep soft rock road-way. Using the two-dimensional UDEC3.1 software, a numerical simulation was carried out on the models of weak lithological structures of both sides of a roadway and of two weak lithological structures of roof of different depths. We reconstruct the overall processes from a break-away layer, bending, subsidence and the cracking of a collapsing roof. We also illustrate the distribution characteristics of displacement fields in the surrounding rock after the roof collapse in a deep soft rock roadway. The results of our numerical simulations indicate that the form of a roof collapse is side-expanding when the roadway is a weak structure at both sides. The height of the roof collapse is related to the lithological combination of the roof when the roadway is a weak structure of the roof. | YANG Jun | 2010 | Mining Science and Technology2010,20,6: | 2 |
| 10 | Trade-off between tolerance to drought and tolerance to flooding in three wetland plants显示文摘 | Wenbo Luo Fengbin Song Yonghong Xie | 2008 | Wetlands2008,28,3: | 1 |
| 11 | 显示文摘 | FENGLei CHENShuang-shuang FENGBin etal(冯雷 陈双双 冯斌 等) | 2012 | 农业机械学报2012,43,8: | 1 |
| 12 | The time‑varying causal relationship between the Bitcoin market and internet attention显示文摘The increasing attention on Bitcoin since 2013 prompts the issue of possible evidence for a causal relationship between the Bitcoin market and internet attention.Taking the Google search volume index as the measure of internet attention,time-varying Granger causality between the global Bitcoin market and internet attention is examined.Empirical results show a strong Granger causal relationship between internet attention and trading volume.Moreover,they indicate,beginning in early 2018,an even stronger impact of trading volume on internet attention,which is consistent with the rapid increase in Bitcoin users following the 2017 Bitcoin bubble.Although Bitcoin returns are found to strongly affect internet attention,internet attention only occasionally affects Bitcoin returns.Further investigation reveals that interactions between internet attention and returns can be amplified by extreme changes in prices,and internet attention is more likely to lead to returns during Bitcoin bubbles.These empirical findings shed light on cryptocurrency investor attention theory and imply trading strategy in Bitcoin markets. | Xun Zhang Fengbin Lu Rui Tao Shouyang Wang | 2021 | Financial Innovation2021,7,1: | 1 |
| 13 | ADAPTIVE FLIGHT CONTROL SYSTEM OF ARMED HELICOPTER USING WAVELET NEURAL NETWORK METHOD显示文摘A discussion is devoted to the design of an adaptive flight control system of the armed helicopter using wavelet neural network method. Firstly, the control loop of the attitude angle is designed with a dynamic inversion scheme in a quick loop and a slow loop. respectively. Then, in order to compensate the error caused by dynamic inversion, the adaptive flight control system of the armed helicopter using wavelet neural network method is put forward, so the BP wavelet neural network and the Lyapunov stable wavelet neural network are used to design the helicopter flight control system. Finally, the typical maneuver flight is simulated to demonstrate its validity and effectiveness. Result proves that the wavelet neural network has an engineering practical value and the effect of WNN is good. | ZHURong-gang JIANGChangsheng FENGBin | 2004 | Transactions of Nanjing University of Aeronautics and Astronautics2004,21,2: | 1 |
| 14 | Fatigue reliability eval- uation and preventive maintenance policy for a struc- tural element under random vibration显示文摘 | Sun Fengbin Kececioglu D B | 1996 | The Ameri- can Institute of Aeronautics and Astronautics Journal1996,,: | 1 |
| 15 | Multi-sensor System and Information Processing of Mobile Robot in Uncertain Environments 显示文摘 | Fengbin Qiao Ruqing Yang | 2004 | Robotica (S0263-5747)2004,5,2: | 1 |
| 16 | Milli-meter wavelength radiation from arrays of discrete high-temperature superconductor Josephson junctions显示文摘 | SONG Fengbin LEVITCHEV M Y MARKELOV V A | 2010 | Superconductor Science and Technology2010,23,34: | 1 |
| 17 | Genetic Nelder-Mead neural network algorithm for fault parameter inversion using GPS data显示文摘The traditional genetic algorithm(GA)has unstable inversion results and is easy to fall into the local optimum when inverting fault parameters.Therefore,this article considers the combination of GA with other non-linear algorithms in order to improve the inversion precision of GA.This paper proposes a genetic Nelder-Mead neural network algorithm(GNMNNA).This algorithm uses a neural network algorithm(NNA)to optimize the global search ability of GA.At the same time,the simplex algorithm is used to optimize the local search capability of the GA.Through numerical examples,the stability of the inversion algorithm under different strategies is explored.The experimental results show that the proposed GNMNNA has stronger inversion stability and higher precision compared with the existing algorithms.The effectiveness of GNMNNA is verified by the BodrumeKos earthquake and Monte Cristo Range earthquake.The experimental results show that GNMNNA is superior to GA and NNA in both inversion precision and computational stability.Therefore,GNMNNA has greater application potential in complex earthquake environment. | Leyang Wang Ranran Xu Fengbin Yu | 2022 | Geodesy and Geodynamics2022,13,4: | 1 |
| 18 | 显示文摘 | FENGLei CHENShuang-shuang FENGBin etal(冯雷 陈双双 冯斌 等) | 2012 | 农业工程学报2012,28,1: | 1 |
| 19 | Effects of the surface-adsorption of boron-doped diamond electrode on its electrochemical behavior显示文摘To elucidate the effects of the hydro- genation and oxygenation of the boron-doped dia- mond (BDD) electrode on its electrochemical behav- iors, the surface morphologies and phases of the two surface-adsorption BDD films have been investigated and the cyclic voltammograms and AC impedance spectra have been measured at these two BDD electrodes. The results indicate that compared with the hydrogen-adsorption BDD film, oxygen-adsor- ption BDD film is less conductive, and has a larger surface roughness and a lower sp3/sp2 ratio. The oxygenated BDD film electrode possesses a wider electrochemical window, larger diamond film resis- tance and capacitance and a larger polarization re- sistance than hydrogenated BDD electrode. In addi- tion, the effect mechanism of the surface-adsorption of BDD electrode on its electrochemical behaviors has been discussed. | LIU Fengbin LI Xuemin WANG Jiadao LIU Bing CHEN Darong | 2006 | Chinese Science Bulletin2006,51,15: | 1 |
| 20 | Avian influenza dynamics in wild birds with bird mobility and spatial heterogeneous environment 显示文摘 | VAIDYA N K WANG Fengbin ZOU Xingfu | 2012 | Discrete Contin Dyn Syst: Ser B2012,17,8: | 1 |