A5025561031- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Quantum optics and atomic interactions
- Mycorrhizal Fungi and Plant Interactions
- Smart Agriculture and AI
- Advanced Measurement and Metrology Techniques
- Flexible and Reconfigurable Manufacturing Systems
- Quantum Information and Cryptography
- Manufacturing Process and Optimization
- Energy Efficiency and Management
- Psychedelics and Drug Studies
- Spectroscopy and Chemometric Analyses
- Sports Performance and Training
- GaN-based semiconductor devices and materials
- Ga2O3 and related materials
- Environmental Impact and Sustainability
- Analytical chemistry methods development
- Orbital Angular Momentum in Optics
- Advanced Measurement and Detection Methods
- Digital Transformation in Industry
- Advanced Manufacturing and Logistics Optimization
- Winter Sports Injuries and Performance
- Forensic Toxicology and Drug Analysis
Tianjin University
2025
University of Science and Technology Beijing
2025
Beijing University of Technology
2021-2024
Anhui Agricultural University
2023-2024
Tongren University
2011-2024
NAURA (China)
2024
Foshan University
2022
Dali University
2022
Harbin Institute of Technology
2016-2021
Beijing Normal University
2018-2021
Heavy metal (HM) contamination affects the composition and structure of soil microbial communities, but there are few studies on assembly process co-occurrence network community succession driven by Cd in volcanic ecosystem. To address this gap knowledge, we collected analyzed samples from Nvshan Volcanic area to understand characteristics primary (PS) secondary (SS). We found that was contaminated with different levels (PS > SS), resulting obvious heterogeneity microorganisms. The absolute...
Aiming to enhance the internal quantum efficiency (IQE) of AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs), active region based on V-shaped well (QW) and electron-blocking layer (EBL) structure are jointly optimized using intelligent algorithms in this work. This method focuses maximizing IQE DUV LEDs by optimizing geometric material parameters multiple QWs (MQWs) EBL. It is demonstrated that LED with an exhibits smaller band edge tilt for improved wave function overlap more...
Abstract A persistent challenge in utilizing gold nanostructures for surface‐enhanced Raman scattering (SERS) lies positioning analytes into the nanoscale hotspots that maximize SERS performance and achieve universal substrates. Here, a novel mesoporous nano‐pockets strategy is proposed to design high substrates by precisely capturing target molecules plasmonic hotspots. This achieved through silica as confined growth of short Au thorns on Fe 3 O 4 core (Fe @sAT@mSiO 2 ), whilst vertically...
The lily, valued for its edibility and medicinal properties, is rich in essential nutrients. However, storage conditions sulfur fumigation during processing can degrade key nutrients like polysaccharides, phenols, dioxide. To address this, we applied a deep learning model combined with hyperspectral imaging the rapid prediction of nutrient quality. CLSTM (convolutional neural network-long short-term memory) model, utilizing variable combination population analysis (VCPA) wavelength...
In the complex environment of greenhouses, it is important to provide picking robot with accurate information. For this purpose, paper improves recognition and detection method based on you only look once v5 (YOLO v5). Firstly, adding data enhancement boosts network generalizability. On input end, k-means clustering (KMC) was utilized obtain more suitable anchors, aiming increase accuracy. Secondly, enhanced multi-scale feature extraction by improving spatial pyramid pooling (SPP). Finally,...
A novel laser self-mixing interferometry vibration measurement algorithm based on the local maximum detection technique is proposed, that can reconstruct micro vibrations rapidly and easily. In this article, principles of are analyzed in detail, process solving window function emphasized. The major advantage method it does not involve any complicated calculations removes need for optical/electromechanical components. validity presented confirmed by means simulated signals demonstrated via...
Abstract In this study, a novel material of core–shell structured magnetic molecularly imprinted polymers (Fe 3 O 4 @SiO 2 @Au (FSA)-MIPs) was successfully prepared for the rapid and selective determination 4-methylmethcathinone (mephedrone, 4-MMC). The adsorption capacity FSA-MIPs is 34.7 mg·g −1 at 308 K, which significantly higher than non-imprinted profiting from imprinting effect. have short equilibrium (20 min) could be reused more six times. Moreover, selectivity coefficients 4-MMC,...
A new self-mixing interferometry quadrature demodulation method based on a lock-in amplifier technique is proposed. Sinusoidal phase modulation of the beam obtained by an electro-optic modulator (EOM) in external cavity. Then real target can be calculated analysis method. In this paper, validity proposed confirmed theoretical and means simulated signals, then it demonstrated several experimental measurements for harmonic arbitrary motion. The results show that get high-precision measurement,...
A novel vibration measurement system based on a fiber-optic extrinsic Fabry-Pérot interferometer is established. Two quadrature interferometry signals are obtained in accordance with the 90° phase shift between two output arms of 2×2 fiber coupler. This outcome drastically simplifies processing collected data because only single arctangent operation needed to calculate wrapped phase. Repetitive test results show that relative micro-vibration reconstruction error this method less than 0.12%....
A novel reconstruction method of nanometer micro-displacement Fabry–Perot (F-P) interference is proposed in this study. Hilbert transforms are performed for F-P fringes, and the obtained signal performs tangent operation with original signal. Finally, validity algorithm structure verified by simulation several experimental measurements vibration. Results from experiments show that maximum relative error 4.9%.
As a kind of new psychoactive substance (NPS), synthetic cathinones have drawn great worldwide attention. In this study, molecularly imprinted polymers (MIPs), as adsorbents for the extraction and determination 4-methyldimethcathinone (4-MDMC), were first synthesized by coprecipitation polymerization. The physicochemical analyses MIPs successfully performed XRD, FTIR, FESEM TGA techniques. Furthermore, rebinding properties temperature pH dependence, selectivity reusability tests...