A5011256712- Radio Frequency Integrated Circuit Design
- Semiconductor Quantum Structures and Devices
- Microwave Engineering and Waveguides
- Photonic and Optical Devices
- Advancements in Semiconductor Devices and Circuit Design
- Silicon Carbide Semiconductor Technologies
- GaN-based semiconductor devices and materials
- Advancements in PLL and VCO Technologies
- Electromagnetic Compatibility and Noise Suppression
- Machine Learning and Data Classification
- Advanced Power Amplifier Design
- Antenna Design and Optimization
- Domain Adaptation and Few-Shot Learning
- Semiconductor Lasers and Optical Devices
- Superconducting and THz Device Technology
- Advanced Battery Materials and Technologies
- Coal Properties and Utilization
- Electromagnetic Compatibility and Measurements
- Rock Mechanics and Modeling
- Humic Substances and Bio-Organic Studies
- Advancements in Battery Materials
- Imbalanced Data Classification Techniques
- Advanced Polymer Synthesis and Characterization
- Dam Engineering and Safety
- Semiconductor materials and interfaces
East China Normal University
2018-2025
Interface (United Kingdom)
2025
Nantong University
2021-2024
Wuhan University of Technology
2024
China Three Gorges University
2024
Southeast University
2023
China University of Mining and Technology
2019-2023
University of Duisburg-Essen
2023
Northeast Petroleum University
2022
Jiangnan University
2022
Abstract Microporous polyethylene (PE) membrane is a representative lithium‐ion battery (LIB) separators but regularly shrinks especially in high‐temperature conditions, and facilely pierced while growing Li dendrites, leading to severe consequences such as short circuits, thermal runaway, even explosion. Herein, this article reports quasi‐continuous strategy that utilizes situ enamel mineralization engineering followed by treatment easily develop large‐area, 3D interlaced hydroxyapatite...
Abstract Artificial or natural cementation introduced in sands alters the mechanical response of sand upon cyclic loading. This study uses 3D discrete element method (DEM) to evaluate effect on behaviour sands. The is explicitly simulated by cohesive tiny particles. results indicate that contributes preservation sand-sand contacts during undrained loading and leads an obvious enhancement liquefaction resistance
The mechanism of the emulsion polymerization styrene to polystyrene nanoparticles (PSNPs) remains a subject debate. Herein, series reaction parameters with different surfactant concentrations, monomer contents, temperatures, and equilibration times were investigated understand formation PSNPs, which demonstrate correlation between properties PSNPs mesostructure premix. Cooling model systems self-emulsifying nanodroplets (SENDs) in early stages resulted hollow spheres (H-PSSs), ruptured...
Although the synthesis of monodisperse polystyrene nanoparticles (MPSPs) in surfactant-free systems has been widely investigated, role mesostructures forming MPSPs is still unclear. Herein, styrene/ethanol-water (St/EtOH-H2O) ternary system with certain was employed as a model to investigate correlation between mesostructure and properties products. The system, including styrene droplets, sponge-like structure, water were investigated by transmission electron microscope (TEM) negative...
Abstract This research investigates the extraction of fulvic acid (FA) from Hami lignite Xinjiang, China, by microwave‐hydrogen peroxide and peroxide‐formic methods. The effects reaction time, oxidant concentration, oxygen‐coal ratio microwave power on FA yield are determined. Sulfuric acid‐acetone was applied to purify primary products. results indicate that concentration is a sensitive factor affecting FA, while time has little effect. Formic can promote hydrogen peroxide, under optimal...
Surfactant-free microemulsions (SFMEs) composed of tetraethyl orthosilicate (TEOS), ethanol, and water have been successfully fabricated by visual titration electrical conductivity methods. Three types SFMEs, in TEOS (W/O), bicontinuous (BC) (O/W), were identified dynamic light scattering transmission electron microscopy with negative-staining We demonstrated that there are significant differences the properties silica products synthesized different monodispersed colloidal spheres (MSCSs)...
We designed and fabricated a Mach-Zehnder interferometer (MZI) thermo-optic switch with an inverted triangular waveguide. The waveguide achieves fundamental mode in large dimension, which can reduce the coupling loss increase extinction ratio. waveguide-based was simulated presented higher heating efficiency lower power consumption than that of traditional rectangular switch. Compared device, proposed device is reduced by 60%. Spacing photobleaching introduced to fabricate adjust refractive...
Comprehensive analysis of small-signal equivalent circuit models for GaAs-based PIN diodes is performed in this article. The provides the diode operation four different modes. A compact nonlinear model has been developed which takes into account dc/ac frequency dispersion dynamic resistance. In order to verify validity proposed model, comparison between modeled and measurement data given, good fitting obtained diode.
An improved millimeter-wave nonlinear model for InP heterojunction bipolar transistor (HBT) is proposed in this letter. The frequency dispersion effect has been taken into account the Agilent HBT ADS software. Model verification carried out by comparison of measured and simulated dc S-parameters up to 110 GHz.
A compact scalable large signal model for GaAs Schottky diodes including edge effect and dc/ac dispersion is proposed in this article. The rules extrinsic resistance intrinsic parameters are given detail. experimental theoretical results show that at the same bias condition, good scaling can be achieved between with different anode equivalent junction areas. Good of large-size devices elementary cell. Model verification carried out by comparison measured simulated dc S-parameters two sizes...
In this paper, we propose an improved method for extracting the four noise parameters of InP HEMT devices based on a 50-Ω measurement system. The equivalent circuit and correlation matrix technique is combined with to determine parameters. This eliminates expensive tuners obtains accurate initial parameter values. reduction in fitting factors that need be optimized simplifies optimization process traditional methods. High consistency between measured modeled up 50 GHz 70 nm gatelength 2×50...
Scalable small signal and noise modeling for 90nm InP high electron mobility transistor (HEMT) is proposed in this paper. Analytical expressions the parameters of intrinsic part are derived from an accurate equivalent circuit model. The experimental theoretical results show that at same bias condition, good scaling can be achieved between HEMTs with different gate widths. Model verification carried out by comparison measured simulated S-parameters up to 325 GHz 40GHz. Good agreement obtained...
A parameter-extraction approach for determination of the small-signal equivalent circuit model InP/InGaAs double heterojunction bipolar transistors is presented in this paper. This method combines advantages conventional T- and π-type equivalent-circuit topologies. All elements are only extracted analytically from S-parameter data without any numerical optimization. The agreements between measured model-calculated excellent frequency range 0.1–110 GHz.
InP heterojunction bipolar transistor (HBT) small signal modeling technique based on artificial neural network(ANN) is proposed in this paper. Two ANN models with different outputs form are given and compared. In the frequency range of 2-110 GHz, good agreements between measured model-calculated data can be achieved to demonstrate that model complex numbers more accurate than amplitude-phase form.
Scalable modeling and parameter extraction of the millimeter-wave GaAs-based p-i-n diode for <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">W</i> -band switch design are presented in this article. A direct-extraction method based on xmlns:xlink="http://www.w3.org/1999/xlink">S</i> -parameters on-wafer measurement is utilized to determine extrinsic intrinsic model parameters without any de-embedding test structures. Under turn- <sc...
Extraction of fulvic acid (FA) from Hulun Buir (HB) lignite were carried out under the conditions hydrogen peroxide and microwave-assisted peroxide. The results showed that microwave can greatly improve reaction rate observably shorten time, while extraction yield FA increased around 4%. Purification technology was studied by sulfuric acid-acetone aqueous solution, then structure purified evaluated. All demonstrated assistance microwave, oxidative degradation ability is stronger, solvent...
In this paper, an emitter-length scalable noise and small signal model for InP heterojunction bipolar transistor (HBT) are presented. A set of expressions parameters based on hybrid-π topology in the low-frequency ranges derived. The analytical experimental results show that under same bias condition, good scaling can be achieved between 1.6μm ×10 μm, × 20 μm 30 HBTs.