A5101908770- Numerical methods for differential equations
- Advanced Numerical Methods in Computational Mathematics
- Matrix Theory and Algorithms
- High-Voltage Power Transmission Systems
- Advanced Vision and Imaging
- HVDC Systems and Fault Protection
- Electromagnetic Scattering and Analysis
- Image Processing Techniques and Applications
- Muscle activation and electromyography studies
- Technology and Human Factors in Education and Health
- Technology Assessment and Management
- Nanoplatforms for cancer theranostics
- Computational Fluid Dynamics and Aerodynamics
- Fluid Dynamics and Turbulent Flows
- Multilevel Inverters and Converters
- Advanced Power Amplifier Design
- Freezing and Crystallization Processes
- Infrared Target Detection Methodologies
- E-commerce and Technology Innovations
- Medical Image Segmentation Techniques
- Gait Recognition and Analysis
- Advanced Neural Network Applications
- Advanced Antenna and Metasurface Technologies
- Advanced Computing and Algorithms
- Coconut Research and Applications
Nanjing University of Aeronautics and Astronautics
2024
Zhengzhou University
2019-2023
Henan Cancer Hospital
2023
Beijing University of Posts and Telecommunications
2011-2022
Changsha University of Science and Technology
2021-2022
Jiangxi Science and Technology Normal University
2020
Guangzhou Sport University
2018
Academy of Mathematics and Systems Science
2009-2012
Chinese Academy of Sciences
2009-2012
Gansu Agricultural University
2010
In this paper, we propose a confidence-based depth maps fusion approach for multi-view 3D reconstruction. We present four-stage method to refine the fused map get higher accuracy. At first, utilize off-the-shelf Kinect device acquire raw quickly. To improve accuracy, compute confidence values estimated in second stage find theoretically optimal value. Next, discard some outliers within region further optimize maps. Finally, attempt fill holes map. Similarly, will point out limitations of our...
In present paper the wing design problem is studied by solving adjoint equations, a numerical method has been developed for three dimensional and some improvements have made, such as far field conditions using characteristics theory, smoothing co-state variable cost function artificial dissipation method, vector flux boundary Hicks-Henne surface variation caused perturbation of variables. Some tests made airfoil design. The test results show that very effective both subsonic transonic case...
Inspired by the shoulder pole, a kind of Chinese archaic folk transporting tool, mechanism Anti Gravity System (AGS) is to create regular bouncing reaction when user walking. It thus provides immediate relief regularly and feeling reduced heaviness user, in theory, slower progression muscle fatigue can be detected from users carrying AGS backpack. In this paper, we made comparative study test effect backpack on relieving neck, back muscles. Two trails were conducted respectively extract...
In order to solve the problem of low recognition rate and high missed in current target detection task, this paper proposes an improved YOLOv3 algorithm based on a gated channel attention mechanism (GCAM) adaptive up-sampling module. Firstly, darknet-53 is used as backbone network extract image basic features. Secondly, module introduced expand low-resolution convolutional feature images, which effectively enhances fusion efficiency images at different scales. Finally, GCAM added improve...
The effects of a dual-polarised patch antenna's structure parameters, such as the width feedline, relative dielectric constant and depth substrate, on antenna resonant frequency, reflection coefficient isolation are analysed by means FDTD method. different parameters two-element array compared with that individual elements. changes in array's coupling also studied
In order to improve the recognition ability of fuzzy sparse scattered feature distribution image, it is necessary carry out spatial vision distributed reconstruction and image virtual reconstruction. A method based on complex analysis proposed. The grid model constructed, information carried by using point extraction method. Combined with block detection segmentation method, boundary region out, visual established. structure filtering fusion are out. according texture detail area 3D...
Due to its unique topology, modular multilevel converter (MMC) is very suitable for AC/AC conversion applications in distribution network and has broad development prospects. Aiming at the problems of multivariable coupling multi-objective accurate control single-phase direct AC/AC-MMC, a model predictive (MPC) strategy based on current decomposition proposed this paper. Firstly, according relationship between bridge arm electrical quantity input output, equivalent decoupling circuit, output...
Conventional cascaded H-bridge power amplifier (CHB-PA) with N modules (HBPMs) could create 2N+1 level for output voltage at most and the directly affects sinusoidal characteristic fidelity performance of amplifier. With same number HBPMs, this paper proposes an asymmetrical multilevel (ACM-PA) in which one HBPM is one-third other reducing withstand HBPM. A virtual carrier phase shift pulse width modulation (VCPS-PWM) strategy also proposed ACM-PA to increase up 6N-3 as conventional CHB-PA....
This paper proposes a model predictive control method based on Kalman filter (MPC-KF) for solving the challenges in simultaneous of output current tracking, capacitor voltages balance, and harmonic circulating currents suppression, operation reliability affected by damaged sensors regulated modular multilevel converter (MMC), which aims to realize multi-objective control, enhancing MMC system. Firstly, MPC principle is described. Then, voltage prediction-correction strategy with only arm...