A5100449264- Photonic and Optical Devices
- Microwave Engineering and Waveguides
- Antenna Design and Analysis
- Terahertz technology and applications
- Semiconductor materials and devices
- Radio Frequency Integrated Circuit Design
- Gas Sensing Nanomaterials and Sensors
- Silicon Carbide Semiconductor Technologies
- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Thin-Film Transistor Technologies
- Antenna Design and Optimization
- Advanced Power Amplifier Design
- HVDC Systems and Fault Protection
- Advanced Antenna and Metasurface Technologies
- Analytical Chemistry and Sensors
- Semiconductor materials and interfaces
- Smart Grid and Power Systems
- Advancements in Battery Materials
- Advanced Fiber Laser Technologies
- Photonic Crystals and Applications
- Advanced Semiconductor Detectors and Materials
- Power System Reliability and Maintenance
- Electrical Fault Detection and Protection
- Advanced Memory and Neural Computing
Second Affiliated Hospital of Nanchang University
2025
Nanchang University
2025
Jiangxi Provincial Academy of Medical Sciences
2025
Chinese Academy of Sciences
2022-2024
Dalian Polytechnic University
2024
Collaborative Innovation Center of Chemistry for Energy Materials
2024
Xiamen University
2024
Harbin Institute of Technology
2018-2024
Zhejiang University
2023-2024
Guilin University of Electronic Technology
2024
Two-dimensional (2D) layered materials such as GaSe recently have emerged novel nonlinear optical with exceptional properties. Although exhibiting large susceptibilities, the responses of 2D are generally limited by short interaction lengths light, thus further enhancement via resonant photonic nanostructures is highly desired for building high-efficiency devices. Here, we demonstrate a giant second-harmonic generation (SHG) coupling flakes to silicon metasurfaces supporting quasi-bound...
Up to now, only a small portion of Si has been utilized in the anode for commercial lithium-ion batteries (LIBs) despite its high energy density. The main challenge using micron-sized is particle crack and pulverization due volume expansion during cycling. This work proposes type Si-based high-entropy alloy (HEA) materials with structural stability LIB anode. Micron-sized HEA-Si can deliver capacity 971 mAhg
Recently, doped HfO 2 thin films have attracted considerable attention because of promising applications in complementary metal–oxide–semiconductor (CMOS)‐compatible ferroelectric memories. Herein, the properties and polarization fatigue La:HfO thin‐film capacitors are reported. By varying substrate lattice constant film thickness, a robust remanent ≈16 μC cm −2 is achieved 12 nm‐thick Pt/La:HfO /La 0.67 Sr 0.33 MnO 3 capacitor. Fatigue measurements conducted using designed pulse sequences,...
Background and purpose: This study aims to develop compare combined models based on enhanced CT-based radiomics, multi-dimensional deep learning, clinical-conventional imaging spatial habitat analysis achieve accurate prediction of thymoma risk classification. Materials Methods: 205 consecutive patients with confirmed by surgical pathology were recruited from three medical centers. Venous phase CT images used delineate the tumor, 2D 3D learning whole tumor established feature extraction was...
Compact terahertz (THz) functional devices are greatly sought after for high-speed wireless communication, biochemical sensing, and non-destructive inspection. However, controlled THz generation, along with transport detection, has remained a challenge especially chip-scale due to low-coupling efficiency unavoidable absorption losses. Here, based on the topological protection of electromagnetic waves, we demonstrate nonlinear generation topologically tuned confinement waves in an engineered...
Reference electrode (RE) plays the core role in accurate potential control electrochemistry. However, nanoresolved electrochemical characterization techniques still suffer from unstable of pseudo-REs, because commercial RE is too large to be used tiny cell, and thus only pseudo-RE can used. Therefore, microsized with a stable urgently required push measurements new level accuracy precision, but it quite challenging reproducibly fabricate such micro until now. Here, we revisited working...
Abstract Lithium niobate (LN), as a nonlinear material with large susceptibility, has been widely employed in second harmonic generation (SHG) up to ultraviolet (UV) frequency range due its broad low-absorption window. In nanophotonics, it is possible harness the Mie resonances associated single dielectric particles boost light–matter interactions. Here, we fabricate Mie-resonant LN nanospheres on SiO 2 substrate via femtosecond (fs) laser ablation technique. By exploiting magnetic dipole...
A wide band radio frequency (RF) root-mean-square (RMS) power detector (PD) is presented in this paper. CMOS rectifier with unbalanced source-coupled pairs and auxiliary capacitors utilized to constitute the reverse received signal strength indicator (reverse-RSSI) architecture as proposed operating from 300 MHz 10 GHz. The are introduced improve linearity at high input dramatically. can be connected amplifier without directional coupler due capacitor attenuation array. Simulation results...
This paper presents a direct-conversion DTV tuner for both VHF and UHF bands. The proposed achieves noise figure of 2.5-3.5 dB at band 2-3 while the LNA consumes only 3.5 mW. An external band-pass LC filter is adopted RF pre-filtering providing DC conduction path cancelling balun LNA. system-level co-design pre-selecting further help to obtain 33 third-order harmonic rejection ratio without using mixers. A quantization-noise-compensated fractional- N frequency synthesizer implemented,...
Abstract XGBoost is the optimization of gradient boosting with best overall performance among machine learning algorithms. By introducing a regularization term into loss function boosting, can effectively limit complexity model, improve generalization ability, and solve overfitting problem. In this paper, first introduced modeling radio‐frequency (RF) power amplifiers (PA) under different temperatures. Furthermore, effect mainly dependent on hyperparameters. As traditional grid search...
A novel human body channel (HBC) energy harvesting scheme for sensor networks (BSNs) is proposed in this paper. Human utilized innovatively as transmission medium to reduce the loss dramatically and eliminate influence of shadow effect. Further, a high sensitivity efficiency rectifier presented by introducing an effective threshold compensation circuit. Experimental results show that it can supply 2-μW power typically at -5 dBm transmitted up 19.5-μW +7 30 cm distance channel. The -22.5 with...
Machine learning methods, such as support vector regression (SVR) and gradient boosting, have been introduced into the modeling of power amplifiers achieved good results. Among various machine algorithms, XGBoost has proven to obtain high-precision models faster with specific parameters. Hyperparameters a significant impact on model performance. A traditional grid search for hyperparameters is time-consuming labor-intensive may not find optimal To solve problem parameter searching, improve...
The host material is crucial for significantly enhancing the performance of solution-processed OLEDs.
Three types of wet-laid nonwoven materials with windmill palm fibril (WPF L ), WPF /windmill fiber bundles (WPFB) and (WPF)/polyvinyl alcohol (PVA), were prepared. The morphology length distribution WPFB analyzed by digital microscopy image processing software. filtration efficiency, air permeability sound absorption properties 12 samples tested. Adding PVA improved the porosity enhanced acoustic nonwovens.
Abstract The drastic fluctuations in temperature and humidity the switchgear environment can lead to condensation, posing threat safe dependable operation of power equipment. In response limitations current anti-condensation measures, a new system for high-voltage is proposed. Firstly, this research provides an overview cause condensation present situation relevant prevention technologies. Secondly, presented. Drawing upon existing technology, effectively addresses prevalent issues such as...