A5101638798- Liquid Crystal Research Advancements
- Advanced Optical Imaging Technologies
- Photonic Crystals and Applications
- Photonic and Optical Devices
- Optical Polarization and Ellipsometry
- Semiconductor Lasers and Optical Devices
- Hydraulic and Pneumatic Systems
- Photorefractive and Nonlinear Optics
- Optical measurement and interference techniques
- Vibration Control and Rheological Fluids
- Advanced Optical Sensing Technologies
- Structural Health Monitoring Techniques
- Electrowetting and Microfluidic Technologies
- Virtual Reality Applications and Impacts
- Advanced Antenna and Metasurface Technologies
- Interactive and Immersive Displays
- Advanced Sensor and Energy Harvesting Materials
- Soft Robotics and Applications
- 3D Surveying and Cultural Heritage
- Surfactants and Colloidal Systems
- Advanced Sensor and Control Systems
- CCD and CMOS Imaging Sensors
- Iterative Learning Control Systems
- Plant Reproductive Biology
- RNA and protein synthesis mechanisms
Beihang University
2015-2025
Hong Kong University of Science and Technology
2018-2025
University of Hong Kong
2018-2025
Anhui University of Technology
2023-2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2023
Cornell University
2023
Lanzhou University of Technology
2021-2022
Hubei University of Medicine
2021-2022
Wuhan University
2021
Renmin Hospital of Wuhan University
2021
Abstract Spherical geometry, adaptive optics, and highly dense network of neurons bridging the eye with visual cortex, are primary features human eyes which enable wide field-of-view (FoV), low aberration, excellent adaptivity, preprocessing perceived information. Therefore, fabricating spherical artificial has garnered enormous scientific interest. However, fusing color vision, in-device optical adaptivity into always been a tremendous challenge. Herein, we demonstrate bionic comprising...
Garnering inspiration from biological compound eyes, artificial vision systems boasting a vivid range of diverse visual functional traits have come to the fore recently. However, most these rely on transformable electronics, which suffer complexity and constrained geometry global deformation, as well potential mismatches between optical detector units. Here, we present unique pinhole eye that combines three-dimensionally printed honeycomb structure with hemispherical, all-solid-state,...
Abstract Heteroatom doping strategies have been widely developed to engineer the conductivity and polarity of 2D materials improve their performance as host for sulfur cathode in lithium–sulfur batteries. However, further improvement is limited by inhomogeneity small amount atoms. An intercalation method 2D‐layered α‐MoO 3 nanoribbons here, thus, resulting much improved electrochemical with better rate cycle performance. The first principle calculations show that binding energy MoO lithium...
Objective This study aims to investigate the composition and function of gut microbiome in long-term depression using an 8-week chronic unpredictable mild stress (CUMS) rat model. Materials methods Animals were sacrificed after either 4 weeks or 8 under CUMS mimic humans. The was analyzed identify potential depression-related microbes, fecal metabolome detect their functional metabolites. correlations between altered microbes metabolites rats explored. crucial metabolic pathways related...
Abstract O 2 ‐delivering nanosystems have been used to antagonize hypoxia‐induced tumor therapeutic resistance. However, short‐time oxygen storage is still a bottleneck for these nanosystems, which results in decrease blood circulation time and accumulation of tumors, thus reducing the efficacy. Herein, long‐term nanosystem (O ‐PIr@Si@PDA) designed overcome hypoxia treatment nasopharyngeal carcinoma. This constructed by using perfluorooctyl bromide (PFOB) core as carrier, functionalized with...
A tetrachromatic light sensor can detect in four independent color channels and extend its detection range beyond the visible spectrum. However, current sensors face challenges such as inability to work reliably extreme temperatures. In this work, we present a fully integrated tandem perovskite imaging system. Four layers of all-inorganic perovskites device serve ultraviolet, blue, green, red detectors discriminate spectral non-spectral colors. The image comprises 32 × color-selective pixel...
Abstract Usually, the resolution loss is severe in light‐field display due to spatial multiplexing of several neighboring pixels images from different directions. However, limited by flat panel display, 3D shows insufficient size, image depth, or resolution. This article uses optimized ferroelectric liquid crystal (FLC) shutters with high contrast (~1000:1), ultra‐fast response (<20 μs), and polarity‐related binary switching at low operating voltage (5 V). utilized 32 time‐sequentially...
Abstract Ultrafast liquid crystal light valves are extensively utilized in high‐refresh‐rate displays and beam control shaping applications. Ferroelectric crystals, characterized by their ability to achieve microsecon response times when driven a 5 V voltage, particularly well‐suited for array‐type valves, such as display screens or adjustable gratings. This study employs optimized ferroelectric materials that exhibit high contrast (~1,000:1), ultra‐fast (<20 μs), polarity‐dependent...
Abstract Multi‐viewpoint retina projection displays (RPD) with an expanded visible range have been utilized in recent augmented reality (AR) systems to address the vergence‐accommodation conflict (VAC) by providing a long depth of field (DOF). However, these fixed multi‐viewpoint RPD still face common critical challenge imaging overlap or discontinuity when eyes rotate under varying ambient light. To this, AR system featuring switchable ultra‐dense viewpoints is presented, enabled...
Aiming at the problem of nonlinear coupling error in measurement parallel six-axis accelerometers, this study improves back propagation (BP) neural network and proposes an improved BP decoupling model that introduces gradient descent with momentum Levenberg-Marquardt (LM) algorithm. By introducing factor updating stage, LM algorithm is used local learning stage to improve convergence speed shock resistance network, enhance accuracy Based on mid-frequency standard vibration device APS 129...
The performance of Al–air batteries in 4 M NaOH containing ZnO or ZnO/cetyl trimethyl ammonium bromide (CTAB) hybrid inhibitor is studied by constant current discharge test. characteristics aluminum anodes after are investigated scanning electron microscopy (SEM), and energy dispersive analysis X–ray (EDAX). corrosion behavior electrodes ZnO/CTAB means hydrogen collection potentiodynamic polarization. SEM EDAX results indicate that CTAB can greatly improve the deposition zinc so a uniform...
We propose an all-silicon-based nano-antenna that functions as not only a wavelength demultiplexer but also polarization one. The is composed of two silicon cuboids with the same length and height different widths. asymmetric structure respect to electric field incident light induced dipole component in propagation direction light. interference between this magnetic by parallel long side exploited manipulate radiation nano-antenna. at certain depends strongly on phase difference dipoles...
Pneumatic drive has the advantage of flexible contact, widely used in large-diameter complex optical surface element processing device drive. Polishing is core step machining process elements. The high-precision control contact force between polishing and directly affects accuracy element. current research on strategy does not fully consider constraints pneumatic system saturation cylinder as an actuating element, which cannot further improve response speed algorithm. In view above problems,...
This article reveals a ferroelectric liquid crystal Dammann grating (FLCDG) based polarisation-modulation system for three-dimensional imaging (3D-imaging) device, which seriously increases the detection speed Light Detection and Ranging (LiDAR). Innovatively FLC modulator with FLCDG that offers high-speed shutter having frame frequency >50k frames/s. The proposed replaces iterative scanning enables LiDAR as one-shot capturing system. device shows fast-switching (~5 μs) precisely detects...
The fringe field effect (FFE) is one of the biggest bottlenecks for display, and photonic industry limiting pixel per inch (PPI) to ~450. modern applications such as AR/VR headsets elements wavelength selective switches required significantly higher PPI panel. Despite rigorous research efforts, conventional LCs still show serious FFE, therefore, hinder progress high display elements. In this article, we studied FFE in deformed helix ferroelectric liquid crystals (DHFLCs) found that...
Long noncoding RNAs (lncRNAs) have been considered as important modulators in the development of osteoarthritis. The present study investigates whether there is a link between lncRNA small nucleolar RNA host gene 5 (SNHG5) and osteoarthritis pathogenesis, underlying molecular mechanism. To establish an vitro model osteoarthritis, interleukin 1β (IL-1β) was used to treat chondrocytes (C20/A4 cells) for mimicking inflammatory condition pathogenesis. SNHG5 miR-181a-5p expression levels were...
Optical devices like virtual reality (VR) headsets present challenges in terms of vergence-accommodation conflict that leads to visual fatigue for the user over time. Lenses available meet these include liquid crystal (LC) lenses, which possess a response time millisecond range. This is slow, while accessing multiple focal lengths. A ferroelectric (FLC) has microsecond In this article, we disclose switchable lens device having combination fast FLC-based polarization rotation unit and passive...
This paper describes a small range six-axis accelerometer (the measurement of the sensor is ±g) with high sensitivity DCB (Double Cantilever Beam) elastic element. developed based on parallel mechanism because reliability. The accuracy sensors affected by its characteristics. To improve sensitivity, structure applied as Through dynamic analysis, model established using Lagrange equation, and mass matrix stiffness are obtained partial derivative calculation conservative congruence...
Abstract This article presents an approach to achieve a fast and analog geometrical phase modulation based on the optical axis rotation of defect‐free Deformed Helix Ferroelectric Liquid Crystal (DHFLC) with short pitch. study demonstrates Spatial Light Modulator (SLM) prototype feature size 3 µm without Fringe Field Effect (FFE), having depth 1.9π, switching time (<250 µs) at low operating voltage (<7 V), high diffraction efficiency (>77%). The is achieved by developing DHFLC cone...
Abstract Objective The patellar inferior pole fracture is typically comminuted. Hence, achieving firm fixation and early activity highly challenging. In this article, we employed the method of wire cerclage through a generated bone hole to reduce fracture. Our objective was compare clinical efficacy concentrator alone with combination in treatment Methods We conducted retrospective review patients fractures, who underwent only (the control group) or combined experimental group), performed by...
Abstract Here we disclose a fast (ON time ∼50 μs and OFF ∼25 at 55 ), high‐contrast, continuous phase modulator without fringe field effect (FFE). The uses the Kerr of vertically aligned deformed helix ferroelectric liquid crystals (VADHFLCs). Specifically, FFE is long‐term problem for nematic (NLCs). In this article, are disclosing, first‐time found, that no exists VADHFLCs, even with 1‐μm pixel pitch. It an attractive feature ultra‐high‐resolution display photonic applications. Moreover,...
Abstract The pneumatic vibration isolator (PVI) plays an increasingly important role in precision manufacturing. In this paper, aiming to detect the performance of pressure regulator PVI system, a testing system with is designed and developed. Firstly, structure spring presented analyzed, nonlinear stiffness obtained based on ideal gas model material mechanics. Then, according working principle continuity equations airflow, dynamic established. Through simulation analysis, isolation improved...