A5100350003- Photonic and Optical Devices
- Microgrid Control and Optimization
- Advanced Fiber Optic Sensors
- Multilevel Inverters and Converters
- Power Systems and Renewable Energy
- Smart Grid Energy Management
- HVDC Systems and Fault Protection
- Advanced DC-DC Converters
- Semiconductor Lasers and Optical Devices
- Advanced Algorithms and Applications
- Optical Coatings and Gratings
- Simulation and Modeling Applications
- Electric Power System Optimization
- Energy Load and Power Forecasting
- Electric Motor Design and Analysis
- Semiconductor materials and devices
- Advanced Surface Polishing Techniques
- Copper Interconnects and Reliability
- Power Systems and Technologies
- Electrodeposition and Electroless Coatings
- Electronic Packaging and Soldering Technologies
- Advanced Photonic Communication Systems
- Advanced Fiber Laser Technologies
- Advanced Sensor and Control Systems
- Wind Turbine Control Systems
Beihua University
2023-2025
Shenzhen Bay Laboratory
2025
Yantai University
2022-2024
Jilin Normal University
2024
Fudan University
2022-2024
Tianjin University
2024
Tiangong University
2022-2023
Shandong University of Technology
2023
Beijing University of Technology
2023
Tianjin University of Science and Technology
2023
To solve the issue of exponentially increasing computational burden finite control set model predictive (FCS-MPC) for multilevel converters, a fast MPC scheme cascaded H-bridge STATCOM is presented. The proposed approach consists three steps. First, with partially stratified optimization approach, multiobjective programming divided into two suboptimization problems, i.e., current-control and voltage-balancing MPC. Second, dynamic algorithm Third, mixed algorithm, which combines greedy (0-1...
Abstract Airborne particulate matter (PM) is causing more and serious air pollution threatening the public health. However, existing filter technologies with easy-to-block manner can rarely meet requirements of high-performance PM filters. Here we propose a conceptually new type inertial impaction filters for rapidly high-efficiency removal. Under airflow velocity 8.0 m/s, real show high removal efficiencies up to 97.77 ± 1.53% 99.47 0.45% 2.5 10 , respectively. Compared traditional reported...
With the proliferation of Location-based Social Networks (LBSNs), user check-in data at Points-of-Interest (POIs) has surged, offering rich insights into preferences. However, sequential POI recommendation systems always face two pivotal challenges. A challenge lies in difficulty modeling time a discrete space, which fails to accurately capture dynamic nature Another is inherent sparsity and noise continuous recommendation, hinder process. To address these challenges, we propose...
A compact and scalable mode (de)multiplexer stands as a pivotal component in on-chip division multiplexing systems. Subwavelength gratings can flexibly adjust the waveguide refractive index at subwavelength scale, while inverse design emerges promising methodology for optimizing extensive intricate parameter sets. Here we propose experimentally demonstrate using inverse-designed grating structures. The proposed six-channel is designed with an ultra-short coupling lengths (8.4-15 μm TE1-TE5...
A compact and scalable mode (de)multiplexer stands as a pivotal component in on-chip division multiplexing systems. Subwavelength gratings can flexibly adjust the waveguide refractive index at subwavelength scale, while inverse design emerges promising methodology for optimizing extensive intricate parameter sets. Here we propose experimentally demonstrate using inverse-designed grating structures. The proposed six-channel is designed with an ultra-short coupling lengths (8.4-15 μm TE1-TE5...
A compact and scalable mode (de)multiplexer stands as a pivotal component in on-chip division multiplexing systems. Subwavelength gratings can flexibly adjust the waveguide refractive index at subwavelength scale, while inverse design emerges promising methodology for optimizing extensive intricate parameter sets. Here we propose experimentally demonstrate using inverse-designed grating structures. The proposed six-channel is designed with an ultra-short coupling lengths (8.4-15 μm TE1-TE5...
Lithium tantalate (LiTaO3, LT) single crystal has been widely applied in the fields of electro-optical and piezoelectric devices. In this study, diamond fixed-abrasive tools (FAT) for LT were fabricated using consolidation abrasive processing technology to streamline wafers enhance overall effectiveness. The material properties critical depth ductile-to-brittle transition examined through nanoindentation scratch techniques. displacement curve exhibits significant periodic fluctuations at...
<title>Abstract</title> Cell adhesion molecules (CAMs) are pivotal in establishing and maintaining synaptic connectivity. Emerging evidence indicates that some secreted factors within the cleft, including C1q-like proteins (C1qls), play a crucial role bridging pre- post-synapses by connecting bilateral CAMs. However, mechanisms of those synapse assembly remain incomplete. Here, we explored C1ql-mediated connectivity, focusing on C1ql1 its post-synaptic receptor brain-specific angiogenesis...
In this study, a non-singular fast terminal sliding mode finite-time tracking control strategy is presented to improve response rapidity and precision of pneumatic servo system via an extended state observer. The observer designed estimate total disturbances the system. Moreover, proposed controller established ensure good performances closed-loop addition, both sufficiently small observation error stabilisation are proved in finite time. Finally, experimental results show effectiveness method.
With the increase of rated power, sampling and switching frequencies high-power pulse-width-modulated (PWM) converter tend to be lower so that a challenging scenario is arising in current control system design. This strongly affects stability performance due undesirable dynamic coupling dq components. From this perspective, paper presents systematic procedure for accurately evaluating systems, which based on static relative gain array (static array). Unfortunately, these systems serious at...
Effective defect passivation and efficient charge transfer within polycrystalline perovskite grains corresponding boundaries are necessary to achieve highly solar cells (PSCs). Herein, focusing on the boundary location of g-C3N4 during crystallization modulation perovskite, molecular engineering 4-carboxyl-3-fluorophenylboronic acid (BF) was designed obtain a novel additive named BFCN. With help strong bonding ability BF with both favorable intramolecular BFCN, not only has crystal quality...
Background: Postoperative nausea and vomiting (PONV) is a common complication after total hip/knee arthroplasty (THA/TKA) that affects patient satisfaction postoperative recovery. It has been reported patients undergoing THA/TKA experience PONV at frequency of 20–83%. This study investigates the occurrence in analyzes risk factors.
Predictive errors restrict high performance of finite control set model predictive (FCS-MPC) in the cascaded H-bridge multilevel inverter.In order to solve this problem, influence mechanisms parameter mismatch, discretization, and sampling error on voltage current prediction are analyzed article. A hierarchical multifactorial correction method is proposed. The known previous adjacent periods first fed back calculate factors self-correct next errors. And then calibrated by corrected...
We demonstrated the design of two different structures, a two-sided structure and top-surface structure, glucose waveguide Bragg grating (WBG) sensors in single-mode silicon-on-insulator (SOI) chip. A WBG was fabricated, chip preparation realized by lithography other processes. photonic platform for testing using built completed. When blood concentration changed 1 mg/mL, had wavelength offset 78 pm. The experimental results show that structures can achieve sensing concentrations. better...
Electro-optic (EO) modulators are typically made of inorganic materials such as lithium niobate; the replacement these with organic EO is a promising alternative due to their lower half-wave voltage (Vπ), ease handling, and relatively low cost. We propose design fabrication push-pull polymer electro-optic modulator voltage-length parameters (VπL) 1.28 V·cm. The device uses Mach-Zehnder structure second-order nonlinear optical host-guest composed CLD-1 chromophore PMMA polymer. experimental...
In the distributed power generation system (DPGS), there may be a large range perturbation values of equivalent grid impedance at point common coupling (PCC). Perturbation will cause resonant frequency variation Inductance Capacitance (LCL) filter on scale, affecting quality current grid-connected inverter (GCI) and even causing resonance. To deal with this problem, novel H∞ robust control strategy based mixed-sensitivity optimization is proposed in paper. Its generalized controlled object...
With the increasing of dc microgrid scale and complexity, it is urgent to obtain stability rules microgrid. In this article, model with multiple droop control sources loads first established for its inner diversity. By analyzing distribution eigenvalues, static characteristics bifurcation, key factors critical conditions bifurcation system are obtained, quantitative relationship between parameters such as coefficient, line impedance, bus capacitance, load determined. Additionally, guidance...