A5031339144- GaN-based semiconductor devices and materials
- Advanced Battery Technologies Research
- Engineering Applied Research
- Reliability and Maintenance Optimization
- Traffic and Road Safety
- Fault Detection and Control Systems
- Industrial Vision Systems and Defect Detection
- Advancements in Battery Materials
- Electronic Packaging and Soldering Technologies
- Traffic control and management
- Silicon Carbide Semiconductor Technologies
- Thin-Film Transistor Technologies
- Gas Sensing Nanomaterials and Sensors
- Software Reliability and Analysis Research
- Semiconductor Lasers and Optical Devices
- Luminescence Properties of Advanced Materials
- Color Science and Applications
- Fatigue and fracture mechanics
- Autonomous Vehicle Technology and Safety
- Human-Automation Interaction and Safety
- Advanced Sensor and Energy Harvesting Materials
- Advanced optical system design
- Electric Vehicles and Infrastructure
- Impact of Light on Environment and Health
- Organic Light-Emitting Diodes Research
Hangzhou Dianzi University
2025
Beihang University
2017-2024
Wenzhou Medical University
2024
Beijing University of Technology
2023-2024
South China Normal University
2024
Hubei University of Technology
2021-2023
University of Leeds
2023
Beijing Institute of Technology
2016-2021
Chinese Academy of Sciences
2015-2019
Hebei University
2019
As an increasing attention towards sustainable development of energy and environment, the power electronics (PEs) are gaining more attraction on various systems. The insulated gate bipolar transistor (IGBT), as one PEs with numerous advantages potentials for higher voltage current ratings, has been used in a board range applications. However, continuing miniaturization rapid ratings IGBTs have remarkable high heat flux, which requires complex thermal management. In this paper, studies...
Precise object detection for unmanned aerial vehicle (UAV) images is a prerequisite many UAV image applications. Compared with natural scene images, often have small objects few pixels. These are obscured, densely distributed, or in complex scenes, which causes great interference to detection. Aiming solve this problem, GhostConv-based lightweight YOLO network (GCL-YOLO) proposed. In the proposed network, backbone parameters was firstly built. Then, new prediction head designed, and original...
The temperature of electrolytic capacitor in light-emitting diode (LED) drivers continuously increases under operation conditions, thus the capacitors degrade faster than that with constant assumption. In this paper, a physics-of-failure (PoF)-based reliability prediction methodology is developed for LED to consider change capacitor. SPICE simulation, compact thermal modeling, and Monte Carlo simulation are integrated predict failure rate distribution an given driver systems. results agree...
Dental anxiety creates significant problems for both patients and the dental profession. Some distraction interventions are already used by healthcare professionals to help cope with unpleasant procedures. The present study is novel because it a) builds on evidence that natural scenery beneficial patients, b) uses a Virtual Reality (VR) representation of nature distract participants. Extending previous work has investigated pain during treatment, c) we also consider longer term effects in...
Abstract The rapid development of the Internet Things (IoT) has tremendously increased demands for wind speed sensors in various applications, such as weather forecasting and environmental monitoring. To date, many are developed based on triboelectric nanogenerators (TENGs). However, low output current leads to a poor sensing precision, which greatly limits their practical applications. Here, sensor is proposed by integrating wind‐driven triboelectrification‐induced electroluminescence...
High-power light-emitting diode (LED) chip-scale packages (CSPs) prepared by the flip-chip technology have become one of most promising light sources. The die attach solder layer always plays an important role in heat dissipation, mechanical support, and electronic conductivity. Among different types materials, Sn-3.0Ag-0.5Cu (SAC305) alloy shows its great competitiveness on solderability properties for interconnection high-power LED CSPs. However, reliability problems caused voids SAC305...
The coalbed methane reservoirs in China are mostly low-permeability reservoirs, which face many difficulties mining, such as complex fractures, susceptibility to sand blockage, and low support rate. This article designs a new type of hydraulic sandblasting perforation device that integrates technology. It adopts modular structure includes guiding, adjusting, fixing, perforation, stabilizing mechanisms. is suitable for well diameter 139.7mm, maximum outer 110mm, an inner 45mm, total length...
The full-spectrum white light-emitting diode (LED) emits light with a broad wavelength range by mixing all lights from multiple LED chips and phosphors. Thus, it has great potentials to be used in healthy lighting, high resolution displays, plant lighting higher color rendering index close sunlight fidelity index. spectral power distribution (SPD) of source, representing its quality, is always dynamically controlled complex electrical thermal loadings when the source operates under usage...
The spectral power distribution (SPD) is considered as the figureprint of a light emitting diode (LED). Based on analysis its SPD, method to predict both lumen depreciation and color shift for phosphor converted white LEDs (pc-LEDs) proposed in this paper. First, entire SPD pc-LED predicted by superimposing two asymmetric double sigmoidal (Asym2sig) models, which represent decomposed blue peaks, respectively. For better understanding how model affects photometric colorimetric characteristics...