A5106746411- Advanced Optical Imaging Technologies
- Autonomous Vehicle Technology and Safety
- Metamaterials and Metasurfaces Applications
- Traffic control and management
- Liquid Crystal Research Advancements
- Advanced Antenna and Metasurface Technologies
- Traffic Prediction and Management Techniques
- Wind Energy Research and Development
- Traffic and Road Safety
- Vibration and Dynamic Analysis
- Human Mobility and Location-Based Analysis
- Urban Design and Spatial Analysis
- Photonic Crystals and Applications
- Hybrid Renewable Energy Systems
- Refrigeration and Air Conditioning Technologies
- Electric and Hybrid Vehicle Technologies
- Photonic and Optical Devices
- Radioactivity and Radon Measurements
- Fluid Dynamics and Vibration Analysis
Guangzhou University
2023-2024
Beihang University
2023
Bridge University
2022
Shanghai Jiao Tong University
2022
University of Central Florida
2022
University of South China
2019
Abstract Virtual reality (VR) and augmented (AR) have found widespread applications in education, engineering, healthcare, entertainment. However, these near-eye displays are often bulky heavy, thus not suitable for long-term wearing. Metalenses, with an ultra-thin formfactor, subwavelength modulation scale, high flexibility, promising candidates to replace the conventional optics AR display systems. In this work, we proposed fabricated a novel reflective dielectric metalens-visor based on...
Improper lane-changing behavior may have a great impact on the safety of surrounding vehicles, and accurate risk assessment can detect improper behavior. Many existing methods are based traditional minimum safe distance model as theoretical foundation, not taking into account effects different weather road conditions. Moreover, initially calculated through is generally limit distance, which deviates to some extent from initial maintained when vehicle begins change lanes during actual driving...
The correct identification and timely pre-warning of driving behavior risks can remind drivers to their unsafe behaviors effectively. First all, four risk evaluation indicators were defined based on lateral longitudinal characteristics: the stability indicator, car-following lane-changing indicator. Pearson correlation coefficient method was used analyze indicators, conclusion showed that very weakly correlated or presented an irrelevant correlation. Thus, describe different risks. Secondly,...
Virtual reality (VR) and augmented (AR) have widespread applications. The vergence-accommodation conflict (VAC), which causes 3D visual fatigue, has become an urgent challenge for VR AR displays. Alvarez lenses, with precise continuously tunable focal length based on the lateral shift of its two sub-elements, are a promising candidate as key electro-optical component in vari-focal display systems to solve VAC problem. In this paper, we propose fabricate compact lens planar polymetric liquid...
In this paper we demonstrate fast-response Pancharatnam-Berry (PB) phase optical elements (PBOEs) based on polymer-stabilized liquid crystal (PSLC). First, a non-interferometric photo-alignment technique is employed to generate PB patterns in dye-doped by green laser light. Then the samples are exposed UV light form polymer networks. Due greatly increased elastic constant PSLC, all PBOEs can achieve submillisecond response time, while maintaining high diffraction efficiency (>90%)....
In order to promote the sustainable development of urban traffic systems, improve accuracy system analysis in planning stage and reduce possibility congestion operation road networks, coupling relationship evolution mechanism between spatial structure flow were studied, a model metrics was established this study based on real network data. First, area from perspective space, syntax method applied verify rationality network. Secondly, initial OD matrix determined by backpropagation measured...
Abstract Radioactive radon is an important hazard in indoor air environments. In order to study the concentration of building environment, this paper tests content cockroaches a university dormitory, teaching and auxiliary room through experiments. And experimental results are analyzed. The show that: built closer soil foundation, higher radioactive radon, effect temperature humidity on very small.
Based on the new ' Lu Shijia No.1 platform, project team has customized a set of force and motion response theory system for it. The existing model is extended, basic coordinate eight frames proposed which simplifies analysis process. By considering design parameters linear potential flow theory, Stokes wave blade element are used to analyze numerical calculation standards various forces defined. At same time, H ∞ controller optimized fan integrated improve overall control fan. full coupling...
Abstract In order to protect environment, traditional fuel car will be replaced by new energy car. LNG is one of the that used widely now. On other hand, vehicle refrigerator being diffusely. Traditional need automobile engine provide extra electric support its work. Indirectly, it consume more fuel. According circumstance works, we study basic theory and experiment about recover cold release during gasification process cooling refrigerator. And theoretical direction invent zero
Abstract Virtual reality (VR) and augmented (AR) have found widespread applications in education, engineering, healthcare, entertainment. However, these near-eye displays are often bulky heavy, thus not suitable for long-term wearing. Metalenses, with an ultra-thin formfactor, subwavelength modulation scale, high flexibility, promising candidates to replace the conventional optics AR display systems. In this work, we proposed fabricated a novel reflective dielectric metalens-visor based on...