A5046324112- Photonic and Optical Devices
- Mechanical and Optical Resonators
- Advanced MEMS and NEMS Technologies
- Acoustic Wave Resonator Technologies
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Advanced Fiber Optic Sensors
- Gas Sensing Nanomaterials and Sensors
- Advanced Fiber Laser Technologies
- Advanced DC-DC Converters
- Multilevel Inverters and Converters
- Semiconductor Quantum Structures and Devices
- Tactile and Sensory Interactions
- Spectroscopy and Laser Applications
- Semiconductor Lasers and Optical Devices
- Silicon Carbide Semiconductor Technologies
- RFID technology advancements
- Infrared Target Detection Methodologies
- Quantum and electron transport phenomena
- Advanced Thermoelectric Materials and Devices
- Ultrasound Imaging and Elastography
- Innovative Energy Harvesting Technologies
- Wireless Power Transfer Systems
- Environmental remediation with nanomaterials
- Plasma Diagnostics and Applications
North University of China
2007-2025
Xiamen University
2024
Tan Kah Kee Innovation Laboratory
2024
Xiamen University of Technology
2024
Southeast University
2018-2020
Shandong University
2017
A hybrid dc transformer (DCT) combining multiple series resonant converters (SRCs) and dual-active bridge (DAB) with input-series-output-parallel (ISOP) configuration is proposed in this article. The DCT suitable for connecting medium-voltage low-voltage distribution networks, which combines SRCs as the majority modules power transmission DAB minority terminal voltage regulation or regulation. Benefiting from circuit topology, can achieve a higher efficiency than ISOP reduced complexity...
Ultrasonic measurement techniques are increasingly used to measure the burning rates of solid rocket fuel, but challenges arise due noise and signal attenuation caused by motor’s multi-layered structure. This paper proposes an adaptive thresholding method combined with a wavelet threshold function for effective ultrasonic denoising. Additionally, extreme value feature fitting algorithm is introduced accurate echo localization, even in low signal-to-noise ratio (SNR) conditions. Numerical...
This paper proposes an indirect input-series output-parallel (I <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> SOP) dc-dc full-bridge converter system based on asymmetric pulsewidth modulation (APWM) control strategy for high input voltage applications. When a short-circuit fault occurs in dc bus, the proposed I SOP can disconnect from bus effectively and avoid filter capacitors of constituent modules discharge compared with traditional...
The development of thermoelectric devices provides an ideal solution for self-sustaining Internet Things (IoT) applications. However, existing face issues such as low integration levels and poor stability. To address these challenges, this paper presents a novel method fabricating flexible using Ag2Se/MgAgSb, which combines MEMS lithographic lift-off techniques to achieve precise control over the dimensions functional layer while also reducing fabrication costs. optimal cell were identified...
The foam properties of mixtures an eco-friendly amino-acid derived surfactant sodium lauroylglutamate (LGS) interacting with cationic dodecyl trimethyl ammonium bromide (DTAB), nonionic laurel alkanolamide (LAA) and anionic sulfonate (SDS), were investigated, respectively. It was amazing that the three investigated binary-mixed systems all showed obviously synergism effect on foaming, though LGS/DTAB catanionic mixture remarkable synergistic no surprise. equilibrium dynamic surface activity,...
Due to the excellent directivity, strong penetrability, and no electromagnetic shielding effect, ultrasonic waves have good potential for wireless energy transmission information transfer inside outside of sealed metal devices. However, traditional based methods usually result in considerable consumption because impedance mismatch during modulation communication. This paper presents an optimal design method efficient The channel equivalent circuit model is established by only using...
A biomimetic three-dimensional piezoresistive vibration sensor based on MEMS technology is reported. The mechanical properties of the are analyzed and static dynamic characteristics simulated by ANSYS Workbench 12.0. structure was made processes including lithography, ion implantation, PECVD, etching, etc. Finally, tested using a TV5220 auto calibration system. results show that lowest sensitivity 394.7 μV/g can reach up to 460.2 μV/g, dimension coupling less than 0.6152%, working frequency...
F-P (Fabry–Perot) pressure sensors have a wide range of potential applications in high-temperature, high-pressure, and high-dynamic environments. However, existing demodulation methods commonly rely on spectrometers, which limits their application to high-frequency signal acquisition. To solve this problem, study developed self-compensated, three-wavelength system composite with an sensor thermocouple construct comprehensive sensing system. The produces accurate measurements In static...
As a vibration signal acquisition device, the sensor has important application prospects in aerospace, industrial manufacturing, and other fields. The traditional electrical is limited by its material sensitive mechanism some bottleneck problems, such as poor anti-electromagnetic interference ability, temperature resistance, inability to self-calibrate. Here, we report high-temperature self-calibration fiber-optic based on an atomic frequency standard system for first time. absolute...
Input-series output-parallel (ISOP) inverter system is applied for high-input-voltage and large-output-current applications. In order to improve the reliability modularity, a novel decentralized control strategy proposed based on active power inverse droop characteristic, with which input voltage output current sharing can be both achieved without sampling of each module. The topology are introduced in detail. Two-module simulation conducted Simulink 400V/1200W prototype fabricated verify...
A kind of piezoresistive ultrasonic sensor based on MEMS is proposed, which composed a membrane and two side beams. simplified mathematical model has been established to analyze the mechanical properties sensor. On basis theoretical analysis, structural size layout location piezoresistors are determined by simulation analysis. The boron-implanted located beams form Wheatstone bridge detect acoustic signal. membrane-beam microstructure fabricated integrally manufacturing technology. Finally,...
The current paper presents our new approach in synthesizing superparamagetic iron oxide nanoparticles. Fe <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> nanoparticles (~500nm) are synthesized through carbon reduction method, which is a brand method. best parameters of this method fixed characterizing transmission electron microscope (TEM), X-Ray Diffraction (XRD) and Vibrating Sample...
A novel nano electro mechanical system (NEMS) accelerated sensor which is based on a Pseudomorphic high electron mobility transistor (PHEMT) device with GaAs/AlGaAs/InGaAs fabricated and demonstrated in this paper. The characteristics, including sensitivity linearity of the studied different drain gate bias voltage PHEMT device, are measured studied. Measured by testing circuit, has good when works linear region saturation region. impacts voltages current been discussed. relationship between...