A5077547018- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Advanced Optical Imaging Technologies
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Insurance and Financial Risk Management
- Nanomaterials for catalytic reactions
- Antenna Design and Analysis
- Membrane-based Ion Separation Techniques
- Stock Market Forecasting Methods
- Fuel Cells and Related Materials
- Orbital Angular Momentum in Optics
- Market Dynamics and Volatility
- Financial Markets and Investment Strategies
- Complex Systems and Time Series Analysis
- Advanced battery technologies research
- Banking stability, regulation, efficiency
Beijing Institute of Technology
2024-2025
Science and Technology on Surface Physics and Chemistry Laboratory
2025
Shanghai University of International Business and Economics
2023-2024
Institute of High Energy Physics
2002-2020
We report values of R = sigma(e(+)e(-)-->hadrons)/sigma(e(+)e(-)-->mu(+)mu(-)) for 85 center-of-mass energies between 2 and 5 GeV measured with the upgraded Beijing Spectrometer at Electron-Positron Collider.
Abstract Directly performing optical analog computations and image processing in space, such as differential operations edge detection, is a burgeoning area. To avoid the bulkiness low efficiency of traditional 4 f filtering systems, one can utilize Green's function metasurfaces for advanced wavefront control. However, some metasurface differentiators be hindered by issues like polarization sensitivity, restricted bandwidth, resolution, need additional devices or digital post‐processing,...
Abstract Due to spatial symmetry constraints, existing single‐layer metasurface schemes suffer from reduced parallel control capabilities and information capacity in their Jones matrices. Recently, bilayer strategies have enabled significant enhancements polarization nonreciprocal modulations, facilitating applications holographic display optical communications. However, a more intuitive matrix analysis is needed, the current pixel‐wise design of metasurfaces necessitates precise...
Abstract Structured beams are analytical solutions to wave equations that possess specific spatial profiles and rigorous transmission properties. Holography enables wavefront reconstruction by recording objective information. In this study, comprehensive control transforming a structured beam in real space is proposed experimentally verified, optical holography reconstructed Fourier space. To obtain an arbitrary profile of the beam, alias transformation performed rebuild coordinate system...
Abstract 3D display technology offers a more realistic visual experience by allowing users to perceive depth and spatial awareness, enhancing interactivity immersion. Among various approaches, multiview constructs images offering multiple smooth views along the horizontal plane. Metasurfaces, with ultra‐thin physical structures flexible functional designs, are positioned make significant contributions evolution of technologies. Here, holographic system based on metasurfaces is proposed....
Although shadow banking widely exists in the financial systems of various countries, their definitions vary significantly due to specific economic and characteristics. This paper classifies Chinese into six categories: securities, trust, private lending, banking, fund, insurance. The AR-GARCH-DCC model is used measure systemic risk spillover through from an industrial institutional perspective. network topology index employed analyze contagion further explore influencing factors. Firstly,...
When compared to traditional indicators, text information can capture market sentiment, investor confidence, and public opinion more effectively. Meanwhile, the mixed-frequency dynamic factor model (MF-DFM) current changes. In this study, authors constructed a financial cycle measurement nowcasting framework by incorporating into factors derived from MF-DFM. The findings reveal that, first, indicator (FCI) provides detailed forward-looking perspective on major events. Second, it serve as an...
Using an ion exchange membrane as a separator,the 2,2′-Dichlorohydrazobenzene is synthesized by the electrolytic reduction of o-chloronetrobenzene.The effects electrode activation condition,current density,electrolyte temperature on are discussed.It was found that optimum reaction 80 ℃.When electrolyte concentration 30% NaOH at anode and 10% cathode,current density 4.2A/dm2,the current efficiency reached 73% yield 83%.
The microsturcture and performance of the recasting perfluorosulfonated membrane were investigated by comparison with Nafion . results indicated that although chemical components FYM1150 kept same as , dry differed from in structure, former possessed some small pores which are not through-holes having a diameter 50~300 nm while latter had almost no pores; mechanical properties better than those ; discharge at high current density MEA using an electrolyte was also one electrolyted due to...