A5101404299- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Optical Network Technologies
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Fiber Optic Sensors
- Gas Sensing Nanomaterials and Sensors
- Solar-Powered Water Purification Methods
- Supercapacitor Materials and Fabrication
- Electrohydrodynamics and Fluid Dynamics
- Plant Physiology and Cultivation Studies
- Pineapple and bromelain studies
- Membrane Separation Technologies
- Pomegranate: compositions and health benefits
- Fuel Cells and Related Materials
- Software-Defined Networks and 5G
- Photonic Crystals and Applications
- Conducting polymers and applications
- Vehicular Ad Hoc Networks (VANETs)
- Nuclear materials and radiation effects
- Ocular and Laser Science Research
- Extraction and Separation Processes
- Optical Systems and Laser Technology
Shenzhen University
2019-2024
Beijing Jiaotong University
2006-2023
Tsinghua University
2013-2021
State Key Laboratory of New Ceramics and Fine Processing
2013-2021
University of Bath
2009
Abstract Inorganic solid electrolytes offer inherently unique transport, thermal, and mechanical attributes that can potentially address the fast‐charging barriers of safety, performance, degradation exhibited by their liquid counterparts; however, to achieve reliable fast charging while retaining long cycle life remains a challenge for all‐solid‐state lithium batteries (ASSLBs), which is hindered electro‐chemo‐mechanical transport issues at solid–solid interface. Herein, high‐entropy...
Ni-rich layered oxides are significantly promising cathode materials for commercial high-energy-density lithium-ion batteries. However, their major bottlenecks limiting widespread applications capacity fading and safety concerns caused by inherently unstable crystal structure highly reactive surface. Herein, surface bulk charge regulation concurrently achieved introducing high-valence Ta5+ ions in cathodes, which exhibit superior electrochemical properties thermal stability, especially a...
Membrane distillation (MD) is an emerging membrane-based evaporation technology with great promise for the desalination and separation industries. However, its widespread application still depends on substantial development to increase flux, reduce energy consumption, extend lifespan of membrane. Herein, we report first time integration multiple functions, that is, energy-saving, flux-enhancing, anti-fouling properties, into a single Such membrane was fabricated by coating top surface...
We report an oxygen ionic conductivity of 0.016 S cm−1 in La2Zr2O7 nanofibers at 500 °C, which is ∼400 times higher than traditional bulk materials. The highly enhanced our can mainly be attributed to a novel mixed phase structure. found that defect fluorite pyrochlore transition occurred 875 °C. By precise control calcination conditions, we successfully tuned the ratio and phases, further demonstrated with structure have due interface lattice mismatch between two phases. remarkably high...
Li metal exhibits high potential as an anode material for next-generation high-energy density batteries. However, the nonuniform transport of Li+ ions causes Li-dendrite growth at electrode, leading to severe capacity decay and a short cycling life. In this study, negatively charged lithiophilic sites (such cationic vacancies) were used hosts regulate atomic-scale Li+-ion deposition in Li-metal batteries (LMBs). As proof concept, three-dimensional (3D) carbon nanofibers (CNFs) decorated with...
Abstract One‐dimensional sensing materials that are prepared via electrospinning and controlled annealing exhibit intrinsic properties, such as electron transmissivity, magnetic susceptibility, specific heat capacity, well optical mechanical characteristics. Particularly, the electronic transmission characteristics of ceramic fiber materials, electrical conductivity, photocurrent, magnetoresistance, nanocontact resistance, dielectric exhibited great potential for applications in next...
We demonstrate low bend loss for tightly bent optical fibers by winding the fiber around a mandrel designed to follow an adiabatic transition path into bend. Light in fundamental core-guided mode is smoothly transferred single cladding of fiber, and back core as it leaves region again. Design based on modeling propagation coupling characteristics modes, which clearly illustrate physical processes involved.
Due to the lower working voltage and higher capacity, Li-rich lithium lanthanum titanate perovskite (LLTO) anode is becoming a potential candidate for commercial Li4Ti5O12 (LTO) Li-ion battery [Zhang, L. Lithium Lanthanum Titanate Perovskite as an Anode Ion Batteries. Nat. Commun. 2020, 11, 3490]. However, high temperature of 1250 °C required fabricate pure LLTO particles by conventional solid-phase calcination method, limiting their further practical applications. Here, in situ carbon...
10 mol% Sc<sub>2</sub>O<sub>3</sub>-doped ZrO<sub>2</sub> nanofibers exhibit excellent phase stability and an exceptionally high ionic conductivity, which were found to strongly depend on the crystallite size.
Fabrication of oxygen sensors using Ce<sub>0.8</sub>Sm<sub>0.1</sub>Nd<sub>0.1</sub>O<sub>2−δ</sub>/Al<sub>2</sub>O<sub>3</sub>multilayered electrolytes with high interfacial ionic conductivity which endows the low operating temperature and excellent performances.
A novel design of high negative dispersion and low confinement loss photonic crystal fiber (PCF) was proposed. The PCF designed has a -1120 ps/nm/km very 1.01*1 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-6</sup> dB/km at 1.55 mum.
为了解决目前国内自主研发的激光位移传感器基准工作距离短和测量范围小的问题,设计了一种适用于远距离测量的大量程激光位移传感器成像光学系统。基于激光三角测量原理,结合具体使用要求计算了大量程激光位移传感器的性能指标和成像光学系统的设计参数。选择5片式透镜结构作为系统的初始结构,利用光学设计软件对大量程激光位移传感器成像光学系统进行了仿真,完成了系统优化和性能分析,实现了基准工作距离为1 000 mm、量程为±500 mm、分辨率为0.4 mm的大量程激光位移传感器成像系统设计。结果表明,在测量范围±500 mm内,系统均可以满足成像质量要求。该激光位移传感器成像系统具有工作距离远、测量量程大、结构简单的特点,可满足1 mm远距离处大量程范围的测量使用要求。
We demonstrate the fabrication of a kind asymmetrical twin core fiber, which is easy spliced with standard single mode fiber. This fiber designed to be used for passive mode-locking in lasers.
A simple model for approximate bandgap structure calculation of all-solid photonic fibre based on an array rings is proposed. In this calculated are only the potential modes a unit cell, which high-index ring in low-index background fibre, rather than whole cladding periodic Bloch's theorem to find bandgap. Its accuracy proved by comparing its results with obtained using accurate full-vector plane-wave method. High speed computation great advantage over other exact methods, because it needs...
Multimodal transportation has gradually become a popular and difficult issue in the field of hazmat supply. Moreover, reasonable network structure is crucial to process hazmat. This study aimed configure links nodes road-rail intermodal network. The risks costs were taken as optimization objectives. Considering interests authority carriers, we established bi-level programming model describe problem. A parallel cutting plane algorithm was proposed solve able obtain deterministic results from...
Nowadays, there is a relatively low performance i n the intrusion detection of SDN. In this paper, multi-data ba sed cooperative training strategy and weighted loss function s trategy are proposed, which based on Transformer model an d InSDN dataset. Based proposed strategies ADMS-Tr ansformer(Add Dimension Multi-Sample Transformer) designed for in SDN network. Through m odel designing, data processing optimization, novel with constraining factor derived ve rified. experiment, accuracy,...
We introduce a defect site in the periodic structure of photonic bandgap fiber, to confine and guide second order mode by effects. Based on high air-filling fraction crystal cladding structure, simplified model with an equivalent air was proposed explore analyze properties this guided mode.