A5002154631- Advanced DC-DC Converters
- Wireless Power Transfer Systems
- Multilevel Inverters and Converters
- Energy Harvesting in Wireless Networks
- Advanced Sensor and Energy Harvesting Materials
- Terahertz technology and applications
- Spectroscopy and Laser Applications
- Advanced Battery Technologies Research
- Induction Heating and Inverter Technology
- Power Systems and Renewable Energy
- Tactile and Sensory Interactions
- Innovative Energy Harvesting Technologies
- Photovoltaic System Optimization Techniques
- Plant and animal studies
- Silicon Carbide Semiconductor Technologies
- Photonic and Optical Devices
- Solar Radiation and Photovoltaics
- Leaf Properties and Growth Measurement
- Medicinal Plant Pharmacodynamics Research
- Immune Cell Function and Interaction
- Electromagnetic Scattering and Analysis
- VLSI and FPGA Design Techniques
- solar cell performance optimization
- Semiconductor Lasers and Optical Devices
- Circadian rhythm and melatonin
Tianjin University
2019-2025
Nanjing Drum Tower Hospital
2024-2025
Nanjing University
2025
ShanghaiTech University
2025
King University
2024
Peking University
2024
Harbin Institute of Technology
2019-2023
University of Pittsburgh
2023
Northwest University
2023
Tsinghua University
2023
A switched-capacitor interleaved bidirectional dc–dc converter that combines a three-phase structure with cells is proposed. The features wide voltage-gain range, low-current ripple on the low-voltage side, low voltage stresses across power switches, an absolute common ground between input and output, can be easily extended into topology family. operating principle switch current are analyzed in detail. An 800 W prototype range ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Communication with plants to understand their growth mechanisms and interaction the surrounding environment may improve production yield in agriculture facilitate prevention of plant diseases negative influence environmental stress. Typical sensing technologies biology precision largely rely on techniques low spatial temporal resolutions, fail continuously precisely determine localized variation leaf physiology microenvironments. Here, develop a multifunctional stretchable leaf-mounted...
Abstract Sensing of mechanical motion based on flexible electromagnetic sensors is challenging due to the complexity obtaining magnetic membranes with confined and enhanced fields. A fully electromechanical system (MEMS) sensor developed conduct wearable monitoring displacement excellent adaptability complex surface morphology through a suspended magnet enclosed within novel setup formed by multi‐layer coil annular origami membranes. The not only regulate overall distribution field enhance...
Electronic skin made of thin, soft, stretchable devices that can mimic the human and reconstruct tactile sensation perception offers great opportunities for prosthesis sensing, robotics controlling, human-machine interfaces. Advanced materials mechanics engineering thin film has proven to be an efficient route enable enhance flexibility stretchability various electronic skins; however, density is still low owing limitation in existing fabrication techniques. Here, we report a high-throughput...
The lateral misalignment for static electric vehicle (EV) wireless charging could be much larger than 100 mm if the parking assistance systems are unavailable. This article proposes a split flat solenoid coupler (SFSC) to significantly extend and reduce copper ferrite usage. To obtain good balance among coupling, tolerance, cost, an optimization method SFSC is proposed where size limitations tile specifications considered. optimized compared with two magnetic couplers recommended in SAE...
Simple but effective output voltage/current control schemes are essential for electric vehicle wireless charging systems (EVWCSs). This article proposes an EVWCS using interleaved boost converter (IBC) and flat solenoid coupler (FSC). The closed-loop between the primary secondary is realized by adjusting duty cycle of IBC. currents losses in reduced proposed system because dc bus voltage increased input current ripple diminished owing to structure. also a parameter optimization method obtain...
Terahertz (THz) wave generation from laser-induced air plasma generally requires a short temporal laser pulse. In contrast, it was observed that THz radiation ionized liquid water prefers longer pulse, wherein the mechanism remains unclear. We attribute preference for pulse duration to process of ionization and formation in water, which is supported by numerical simulation result showing highest electron density achieved with subpicosecond The explanation further verified coincidence our...
Current ripples produced in single-phase onboard charging systems of electric vehicles (EVs) impact the lifetime their batteries. In this article, an isolated multifunctional charger topology is proposed. The system can be used to charge auxiliary batteries or serve as active filter (AF) for power battery charger. By time-sharing multiplexing it, high-frequency (HF) and low-frequency (LF/second harmonic) current ripple suppressed driving parking modes, respectively. proposed also achieve...
This paper proposes a cyclic shift (CS) reconfiguration scheme and two-stage MPPT (TS-MPPT) method to enhance the energy supply of solar-powered unmanned aerial vehicle (SPUAV) photovoltaic (PV) systems under partial shading conditions (PSCs). The proposed CS disperses shadows by moving PV modules longitudinally deduces optimal movement distance. not only improves power delivery during PSCs, but also simplifies maximum point tracking (MPPT) aligning global (GMPP) with right (RPP)....
Visual Analytics (VA) researchers frequently collaborate closely with domain experts to derive requirements and select appropriate solutions fulfill these requirements. Despite strides made in exploring requirement solution spaces, challenges persist due the absence of guidance initial consideration space lack shared problem-solving knowledge, often resulting suboptimal solutions. To address issues, we conducted an empirical study VA research, a focus on mapping relations between spaces....
In single-phase ac battery chargers, pulsating power at twice of the line frequency is delivered by source resulting in second-harmonic ripple voltage on dc-link if additional passive or active filter (AF) circuits are not used. this article, an inductance-based AF using leakage inductance machine windings along with a current compensation control method proposed. No components required. The used article has double-layer winding center tap each phase and structure special that magnetomotive...
This article presents a simultaneous wireless power and data transfer (SWPDT) system based on double-sided inductor-capacitor-capacitor compensation topology frequency-shift keying. A simplified method to analyze the transfer, interference between them is proposed. To obtain higher gain lower bit error rate, injection extraction transformers are optimized. laboratory prototype was built verify correctness of analysis methodology. The proposed SWPDT less susceptible transfer. experimentally...
A three-stage-five-coil inductive power transfer (IPT) system which is based on cylindrical solenoid coupler (CSC) proposed in this article. The shape and parameters of the CSC are optimized. five litz coils compensated by series capacitors considered to form an IPT equivalent CLC/S/CLC compensation topology with constant voltage characteristics. mutual inductance between auxiliary coil (CAC) could be changed moving position CAC, freedom parameter design enhanced. Mathematical model loss...
Abstract Dynamic multilead monitoring of cardiovascular health conditions is challenging due to the complexity constructing a flexible system that covers large surface areas and synchronizes measurement results from different leads. A 12‐lead electrocardiography can simultaneously conduct electrocardiogram sensing 3‐axis acceleration developed. The fabricated through modularized printing process, resulting in individual modules be assembled reversibly magnetic connectors. Different levels...
Wearable flexible sensors attached on the neck have been developed to measure vibration of vocal cords during speech. However, high-frequency attenuation caused by frequency response and absorption sound skin are obstacles practical application these in speech capture based bone conduction. In this paper, enhancement techniques for enhancing intelligibility sensor signals compared. Four kinds algorithms a fully connected neural network (FCNN), long short-term memory (LSTM), bidirectional...
The switched-quasi-Z-source bidirectional dc–dc converter (SQBC) has the characteristics of wide voltage gain and low stress, is suitable for power interface between supercapacitors dc bus in multisource system electric vehicles. On basis SQBC, an optimal design method inductance parameters variable switching frequency control strategy are proposed this article. While remaining stress topology, soft-switching operation within full range achieved without adding additional auxiliary devices....
Introduction: Damage in the ischemic core and penumbra after stroke affects patient prognosis. Microglia immediately respond to insult stroke. However, microglial heterogeneity underlying mechanisms remain unclear. In this study, we sought uncover stroke-associated microglia identify their heterogenous features. Methods: We performed single-cell RNA-sequencing spatial transcriptomics on middle cerebral artery occlusion (MCAO) mice determine clusters. The expression of marker genes...