A5100685020- Radio Wave Propagation Studies
- Guidance and Control Systems
- Precipitation Measurement and Analysis
- Adaptive Control of Nonlinear Systems
- Ocean Waves and Remote Sensing
- Radar Systems and Signal Processing
- Millimeter-Wave Propagation and Modeling
- Military Defense Systems Analysis
- Underwater Acoustics Research
- Advanced SAR Imaging Techniques
- Robotics and Sensor-Based Localization
- Power Line Communications and Noise
- Multicomponent Synthesis of Heterocycles
- Pulsars and Gravitational Waves Research
- Robotic Path Planning Algorithms
- Electromagnetic Launch and Propulsion Technology
- Remote Sensing and LiDAR Applications
- Advanced Measurement and Detection Methods
- Synthesis and biological activity
- Railway Systems and Energy Efficiency
- Iron and Steelmaking Processes
- Distributed Control Multi-Agent Systems
- Microwave-Assisted Synthesis and Applications
- 3D Surveying and Cultural Heritage
- Animal Virus Infections Studies
Laoshan Laboratory
2025
National Engineering Research Center of Electromagnetic Radiation Control Materials
2018-2024
Northeast Forestry University
2024
Air Force Medical University
2021-2024
Institute of High Energy Physics
2024
Chinese Academy of Sciences
2024
Fujian Academy of Agricultural Sciences
2024
Inner Mongolia Agricultural University
2024
Nanjing University of Aeronautics and Astronautics
2022-2023
AVIC Optronics (China)
2013-2023
Abstract Magnetars are neutron stars with ultrahigh magnetic fields (~10 14 –10 15 G). The magnetar SGR J1935+2154 is not only one of the most active magnetars detected so far, but also unique confirmed source fast radio bursts. Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) dedicated to monitor gamma-ray transients all over sky, including short Here we report GECAM observations burst activity from 2021 January 2022 December, which results in a and...
Abstract The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a dedicated mission consisting of multiple instruments on different spacecraft to monitor gamma-ray transients. To meet the requirement GECAM, we developed Energetic Transients Joint Analysis System for Multi-INstrument (ETJASMIN) pipeline, which has been extended incorporate other (such as Fermi-GBM, SVOM/GRM). In this work, introduce ETJASMIN pipeline with focus search, verification, and...
The study of sea clutter reflectivity plays an important role in radar performance evaluations the military industry. industrial bodies are trying to apply intelligent processing technology system with form Internet Things and Industry 4.0. Many models that have been proposed difficult fully adapt surrounding seas different systems China. This article proposes a model named multi-source input neural network (MSINN) using collected by ultra high frequency (UHF) radar. In order prepare data...
In order to study the mass transfer efficiency of micronanobubbles (MNBs), an equation volumetric coefficient (kLa) was proposed based on theory and dimensionless numbers. It verified by experimental data from different literature sources. Then, kLa in MNB column measured under conditions salt concentrations. The test results showed that could successfully predict not only this research but also other literature. column, when concentration increased 0.0 3.0 g/L, values Sauter mean bubble...
This paper investigates the robust formation control for missiles with obstacle avoidance. A sliding mode surface that is asymptotically stable firstly presented by collision avoidance potential function and hyperbolic tangent function. Based on surface, a controller designed missiles. To improve convergence rate, finite-time which can deal given using an improved surface. Finally, effectiveness of controllers demonstrated Lyapunov theory simulation results.
A new four-parameter modified refractivity profile (Mprofile) model for the evaporation duct is introduced in this paper.In estimation of radio structure from sea clutters, a parametric M-profile normally employed.The conventional ducts one-parameter log linear model, which has some potential disadvantages describing observed M-profiles would result rough results estimation.Based on three parameters are and proposed here.This ability to (a) more accurately match real-world M-profiles, (b)...
Abstract The accumulation of unfolded or misfolded proteins in the endoplasmic reticulum can cause an stress (ERS) response. If ERS continues cannot be alleviated, it will production proapoptotic factors and eventually lead to apoptosis. Therefore, this study mainly explored whether Trichinella spiralis Kazal-type serine protease inhibitor (TsKaSPI) contributed invasion intestinal epithelial cells during infectious stage T. by regulating ERS. First, infection model, H&E staining was used...
Tropospheric duct is an anomalous atmospheric phenomenon over the sea surface that seriously affects normal operation and performance evaluation of electromagnetic communication equipment at sea. Therefore, achieving precise sensing tropospheric profound significance for propagation signals. The approach inverting refractivity from easily measurable radar clutter also known as (RFC) technique. However, inversion precision conventional RFC technique low in low-altitude evaporation...
This paper proposes a fault tolerant control strategy for drone interceptors with fixed wings and reaction jets subject to actuator faults. The have both continuous discrete actuators, which pose challenge the system design. proposed consists of two parts, nonlinear virtual law dynamic allocator. To deal uncertainty quantization error, parameter update is designed by command filtered backstepping. Then, weighting allocation algorithm developed distribute signal actuators on interceptor. When...
Abstract magnified image A series of new and significative bifunctional compounds containing two pyrazolo[3,4‐ b ]pyridine moieties has been synthesized through a rapid one‐pot three‐component reaction dialdehyde, 5‐amino‐3‐methyl‐1‐phenylpyrazole active methylene in glycol under microwave irradiation without catalyst. The method the advantages good yield (85‐98%), short route time (45‐300s), wide scope easy work‐up procedure.
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The maritime tropospheric duct is a low-altitude anomalous refractivity structure over the ocean surface, and it can significantly affect performance of many shore-based/shipboard radar communication systems. We propose idea that ducts be retrieved from forward-scattered low-elevation global positioning system (GPS) signals. Retrieval accomplished by matching measured power patterns signals to those predicted forward propagation model as function modified profile. On basis parabolic equation...
A method for retrieving evaporation duct height (EDH) is introduced in this paper.The proposed technique employs the changes radar sea clutter power observed at different heights as input information.It identifies EDH associated with modeled change pattern that best matches measured patterns.The performance of evaluated terms RMS errors actual EDHs range from 0 to 40 m.The comparison conventional matching shows former more effectively retrieves EDHs.
A modified GIT model for describing the variational trend of mean clutter reflectivity as a function wind speed is proposed. It uses two slope adjustment factors and critical wind-speed to define adjust increasing with respect speed. In addition, it constant factor compensate overall amplitude reflectivity. The performance has been verified on basis L-band low-grazing-angle radar sea data. results are in good agreement experimental data, indicating that more effective predicting behavior...
Object SLAM is a popular approach for autonomous driving and robotics, but accurate object perception in outdoor environments remains challenge. State-of-the-art algorithms rely on assumptions are sensitive to observation noise, limiting their application real-world scenarios. To address these challenges, we propose novel system that utilizes quadric initialization algorithm based constrained optimization, which does not planar robust partial observations. Additionally, introduce an...