A5101683697- Risk and Safety Analysis
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Industrial Technology and Control Systems
- Advanced Photonic Communication Systems
- Advanced Algorithms and Applications
- Metamaterials and Metasurfaces Applications
- Human-Automation Interaction and Safety
- Advanced Antenna and Metasurface Technologies
- Ergonomics and Human Factors
- Advanced Decision-Making Techniques
- Optical Network Technologies
- Advanced Sensor and Control Systems
- Hydraulic and Pneumatic Systems
- Orbital Angular Momentum in Optics
- Occupational Health and Safety Research
- Power Systems and Renewable Energy
- Iterative Learning Control Systems
- Smart Grid and Power Systems
- IoT Networks and Protocols
- Fault Detection and Control Systems
- Thermal Analysis in Power Transmission
- Power Systems and Technologies
- Optimal Power Flow Distribution
City University of Hong Kong, Shenzhen Research Institute
2025
Suzhou Institute of Nano-tech and Nano-bionics
2020-2025
Chinese Academy of Sciences
2020-2025
Shandong University
2007-2025
Fudan University
2022-2025
Guizhou Electric Power Design and Research Institute
2020-2024
Shanghai University
2022
State Forestry and Grassland Administration
2019
Beijing Jiaotong University
2013-2017
University of South China
2006-2017
Abstract By virtue of the extraordinary capability manipulating polarization state, amplitude and phase electromagnetic fields, metasurfaces can be employed to display holographic or nanoprinting images with unprecedented spatial resolution. Bringing holography together is an effective way toward information multiplexing. However, current approaches mostly utilize interleaving stacking nanostructures different functionalities construct multiplexed metasurfaces, hence they are equivalent a...
Diffractive optical neural networks (DONNs) have exhibited the advantages of parallelization, high speed, and low consumption. However, existing DONNs based on free-space diffractive elements are bulky unsteady. In this study, we propose a planar-waveguide integrated network chip architecture. The three layers engraved same side quartz wafer. three-layer is designed with 32-mm3 processing space enables computing speed 3.1×109 Tera operations per second. results show that proposed achieves...
A simple template-free hydrothermal method has been developed to prepare multi-shelled SnO<sub>2</sub> hollow spheres with controlled interior texture.
By virtue of the unprecedented ability manipulating optical parameters, metasurfaces open up a new avenue for realizing ultra-compact image displays, e.g., nanoprinting on surface and holographic displaying in far-field. The multifold integration these two functions into single metasurface can undoubtedly expand functionality increase information capacity. In this study, minimalist tri-channel is proposed experimentally demonstrated with printed displaying, which generate N-bit grayscale...
Jiao-Liao Mandarin, a distinguished dialect in China, reflects the linguistic features and cultural heritage of region. However, labor-intensive costly nature manual transcription limits scale transcribed corpora, posing challenges for speech recognition. We present JLMS25, corpus alongside novel multi-dialect knowledge transfer (MDKT) framework low-resource By leveraging phonetic from neighboring dialects, MDKT improves recognition resource-constrained settings. It comprises an acoustic...
The incorporation of functionalized benzoxazine with allyl groups into<bold>BMI</bold>/<bold>BADCy</bold>composites can induce an interpenetrating network (IPN) structure and the fracture surface will change from a riverlike shape to ductile sunken shape.
Abstract Quantitative assessments of the level and lifetime alkali metal in atomic vapor cells are essential for improving stability magnetometers. In this paper, a fast non-destructive approach is proposed to directly characterize 87 Rb hermetic MEMS cell. The MEMS-compatible evaporation technique developed dispense with high efficiency. morphology metallic cell visualized by X-ray technique, measured contact angle 43° ± 2°. Combined image recognition, quantitative characterization...
The control of Chen's chaotic system when its parameters are known a priori or unknown is studied by means simple linear state feedback method. When the priori, we show variation range gain; and unknown, an adaptive controller designed, which overcomes drawback that discontinuous in common controller. Finally simulation results vertify effectiveness our proposed
In this paper, a simple and cost-effective millimeter-wave (mm-wave) signal generator with tunable frequency multiplication factor (FMF) by employing the uniform fiber Bragg grating based acousto-optic filter (UFBG-AOTF) is proposed demonstrated. A dual-driving Mach-Zehnder modulator (MZM) used to generate multisidebands. The UFBG-AOTF can select target sidebands. FMF of even times be achieved adjusting applied acoustic wave on UFBG. Two homemade UFBG-AOTFs are in basic radio-over-fiber...
Accurate characterization of atomic vapor cells is crucial for enhancing the sensitivity miniature magnetometers. In this study, a fast and efficient approach developed to characterize relaxation properties inner surface 87Rb micro-electro-mechanical systems (MEMS) cell. Based on zero-field level crossing effect, transverse rate was experimentally determined, depolarization coefficient 0.097 atom-wall collisions in MEMS cell obtained. The experiments demonstrated that alkali-wall collision...
This study introduces LoRa technology to build a new generation of power grid data transmission communication platform, studies the direct method between main station system and electricity meter, feasibility using instead GPRS/CDMA in grid. The network formed by can play an increasingly important role fields smart lines, distribution networks, supply safety future, providing "last mile" wireless capability supplement for existing wired private Southern Power Grid.
Abstract Metasurfaces are ultra‐thin micro‐nano elements, have abundant freedoms, and widely used in light field transformation. The Jones matrix of single‐layer birefringent metasurfaces at most 6 degrees freedom, which limits the richness diversity Bilayer more design channels functionality than metasurfaces. By mathematical derivation, decomposition method bilayer metasurface unitary is provided. Further, inspired by double‐phase holography, arbitrary complex decomposed realized achieves...
摘要 把观测器思想用于系统中未知参数的辨识,对Lorenz混沌系统中的未知参数进行了辨识研究,提出未知参数辨识观测器的概念,数值结果表明若未知参数为常数或缓慢变化的信号本文方法都能给出很好的辨识结果.随后,把辨识和控制问题综合起来考虑,提出改进Lorenz混沌的控制方法,数值仿真表明了该方法的有效性 关键词: Lorenz混沌系统 / 参数辨识 非线性反馈控制 Abstract Keywords: 作者及机构信息 关新平, 彭海朋, 李丽香, 王益群 1. 燕山大学电气工程学院 ,秦皇岛 0 660 4 基金项目: 国家自然科学基金!(批准号 :6 9872 31)资助的课题&& Authors and contacts Guan Xin-Ping, Peng Hai-Peng, Li Li-Xiang, Wang Yi-Qun 参考文献 施引文献
A simple fiber-optic sensor based on a fiber Bragg grating (FBG) embedded in modal interferometer (MI) for simultaneous measurements of temperature and strain is proposed experimentally demonstrated. The MI constructed by splicing two sections the no-core (NCF) between single-mode fibers. Due to different responses NCF-based FBG same strain, discrimination can be easily achieved. For 0.01-nm wavelength resolution, resolution 0.216°C 6.75 με respectively.
A solution to the path following problem for underactuated autonomous vehicles in presence of possibly large modeling parametric uncertainty is proposed. For a general class moving 2D space, we demonstrated control law based on multiple variable sliding mode that yields global boundedness and convergence position tracking error small neighborhood robustness uncertainty. An integration element added into “tanh” function traditional control. We illustrated our results context vehicle...
Recently, dynamic metasurfaces have attracted significant attention due to their ability actively control electromagnetic waves upon external tunings. The realization of high performance metasurfaces-based devices remains a great challenge very limited modulation depths. Here based on the Huygens metasurfaces, efficient active transmitted wave was realized by combination dielectric resonators and phase transition material (vanadium dioxide, VO2). At Huygens-mode wavelength, metasurface...