Zixuan Li

University of Electronic Science and Technology of China

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Noboru Ishihara

Tokyo Institute of Technology

Guolai Yang

Nanjing University of Science and Technology

Zheping Yan

Harbin Engineering University

Jie Xu

Chinese University of Hong Kong, Shenzhen

Rui Zhou

Tsinghua University

Sihan Li

Southwest Petroleum University

Yanbin Teng

Wuhan Ship Development & Design Institute

Wang Yueheng

Shanghai Jiao Tong University

Yiyao Li

McMaster University

Moru Song

Shanghai Jiao Tong University

Cooperative Institutions

Chinese Academy of Sciences

Hebei University of Technology

University of Electronic Science and Technology of China

Tsinghua University

Shanghai Jiao Tong University

Nanjing Medical University

Harbin Engineering University

University of Chinese Academy of Sciences

Beihang University

Beijing University of Posts and Telecommunications

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An underwater docking system based on UUV and recovery mother ship: design and experiment

Ocean Engineering (2023)

Wei Zhang Wenhua Wu Yanbin Teng Zixuan Li Zheping Yan

Unmanned underwater vehicle

Beacon

10.1016/j.oceaneng.2023.114767

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Citations (11)

Autonomous Underwater Vehicle Vision Guided Docking Experiments Based on L-Shaped Light Array

IEEE Access (2019)

Zheping Yan Peng Gong Wei Zhang Zixuan Li Yanbin Teng

In order to realize recovery of an autonomous underwater vehicle (AUV), the L-shaped light array installed at the bottom of the fork-carrying-pole docking device is designed, and the visual positioning algorithm based on the L-shaped light array is proposed. The L-shaped light array is identified by a camera installed on the abdomen of the AUV, the relative position deviation from the AUV and the light array is calculated, and the AUV is docked according to the obtained positional deviation. The monocular four-degree-of-freedom positioning algorithm for AUV solves the problem of missing part of the target light source. Judging the heading angle is improved when the AUV has a longitudinal inclination (heeling angle). The docking experiment of AUV recovery is carried out to verify the feasibility of the L-shaped light array as visual guidance and the stability of the positioning algorithm.

Robot vision

Machine Vision

10.1109/access.2019.2917791

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Citations (43)

Experimental study of an aircraft fuel tank inerting system

Chinese Journal of Aeronautics (2015)

Yan Cai Xueqin Bu Guiping Lin Bing Sun Yu Zeng

Inert gas

Data scrubbing

Fuel tank

Inert

Life span

10.1016/j.cja.2015.02.002

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Citations (35)

Analysis of reasons of the bulge deformation of batteries in Xidan and other transformer stations

Chinese Labat Man (2010)

Zixuan Li

This paper,by finding and analyzing the reasons of bulge deformation of the containers for VRLA batteries in Xidan and other three transformer stations,gives suggestions and solution in order to avoid the recurrence of similar problems and improve the secure operation level of DC equipments in transformer substations.

Source

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Damping and demagnetization analysis of a cylindrical linear electromagnetic buffer under impact load

International Journal of Applied Electromagnetics and Mechanics (2020)

Zixuan Li Guolai Yang Liqun Wang

This paper investigates the damping and demagnetization effect of an electromagnetic buffer (EMB) under impact load. The motional eddy currents are calculated first, and the Ampere circuital theorem is employed to calculate the induced magnetic field. The demagnetization effect is formulated by the magnetic Reynolds number with a correction coefficient km. Following this, the time-step finite element (FE) model of the buffering system is constructed based on the nonlinear B–H curve. The accuracy and feasibility of the FE model is preliminarily verified by small-scale impact test. The characteristics of damping displacement, velocity, damping force and damping coefficient are obtained. Then, the demagnetization effect is analysed by eddy current, magnetic field distribution, through the intensive impact load test at room temperature and time-step FE model. The value of km is obtained through the intensive impact test and the simplified expression of critical velocity. The results show that the demagnetization effect is obvious with the increase of velocity. By introducing the correction coefficient of magnetic Reynolds number, the eddy current demagnetization process is more realistic.

10.3233/jae-201556

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Citations (4)

A Transient Wellbore Trajectory Prediction Model using Transfer Matrix Method

International Journal of Petroleum and Petrochemical Engineering (2019)

Hongxing Li Xingang Wang Xuelong Bai Yan Zhang Zixuan Li

Wellbore trajectoryprediction is one of the most important topics in the drilling engineering field.To predict the wellbore trajectory accurately, a good understanding of the bottom hole assembly (BHA) mechanics is essential.In this study, a Transfer Matrix method was used to model the BHA in 2D static conditions.The bit and formation anisotropy are also considered in the model.By using the Transfer Matrix principle, wellbore trajectory in the transient condition(from the initial conditions to the final equilibrium conditions) can be predicted after finding the direction of the wellbore at the initial conditions.Results shown that the Transfer Matrix method is an effective way to calculate thedynamic BHA conditions and prediction transient wellbore trajectory during drilling.

Wellbore

Transient (computer programming)

Matrix (chemical analysis)

Transient analysis

10.20431/2454-7980.0503004

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Citations (1)

Juglone-loaded metal-organic frameworks for H2O2 self-modulating enhancing chemodynamic therapy against prostate cancer

Chemical Engineering Journal (2021)

Long Zhao Zixuan Li Jiaojun Wei Xiao Yu Yu She

Juglone

10.1016/j.cej.2021.133057

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Citations (29)

Numerical Analysis of the New Wireless Relay Transmission Model Based on FEM

IEEE Transactions on Antennas and Propagation (2023)

Sihan Li Xiangyang Sun Zixuan Li Peng Hao

In this article, a wireless relay transmission system in long-distance wells with new close-winding helical coils is proposed. This system can realize more efficient bottom–up superposition transmission of signals in long transmission wells. At the same time, by redesigning the structure of the transmitting and relay antennas, a close-winding helical coil structure with metal ring protection is proposed to excite quasi-TEM waves, which improves the efficiency of signal transmission in each channel and the compressive strength of the antenna. The simulation and experimental results demonstrate that under long-distance and harsh stratum conditions, the wireless transmission system in long-distance wells has excellent signal transmission performance at extremely low frequencies. Compared with previous antenna structures, the new helical coil has a better performance in transmission efficiency. This new wireless relay transmission system can greatly meet the long-distance transmission and conditions of oil and gas wells in the future.

10.1109/tap.2023.3247899

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Citations (1)

A novel rotation detection method based on the capacitance principle and triboelectric effect

Measurement Science and Technology (2021)

Zhihua Wang Zixuan Li Tao Yao Zhiying Wang Huijuan Zhang

With the rapid development of automation, more rotating monitoring equipment has been applied in modern industrial and civil fields. Conventional rotating monitoring sensors such as Hall rotating sensor and variable reluctance rotating sensor have a complex structure and their split structure is not convenient to layout. In the present study, a multi-layer structure rotation measurement sensor (MSRMS) is proposed based on the triboelectric effect and the capacitance principle. The proposed sensor consists of a stator and a rotor and measures the rotational speed based on the relative rotation between the copper electrode (Cu) on the stator and the polytetrafluoroethylene (PTFE) film on the rotor, and the variations of the electrostatic-induced voltage in the electrode, and can generate an alternating voltage waveform. When the rotor rotates, the correlation between the relative area of the stator and rotor electrode plates and the capacitor capacitance can be applied to measure the rotation angle. Then the MSRMS is applied to the programmable motor and the tripod for testing. It is found that the maximum error of the speed measurement is less than 0.2 %. The coefficient of determination R2 of the fitting for the distribution of the capacitance and the rotation angle is higher than 0.99688, which shows that capacitance is related to the rotation angle. The proposed sensor can not only measure the static rotation angle, but also dynamically monitor the speed and direction of rotation, and has a good application prospect.

Capacitance probe

10.1088/1361-6501/ac271e

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Citations (1)

Optimizing Transformer for Large-Hole Image Inpainting

2022 IEEE International Conference on Image Processing (ICIP) (2023)

Zixuan Li Yuan‐Gen Wang

In recent years, leveraging Convolutional Neural Network (CNN) to optimize Transformer (called hybrid model) has achieved great progress in image inpainting. However, the slow growth of the effective receptive field of CNN in processing large-hole regions significantly limits the overall performance. To alleviate this problem, this paper proposes a new Transformer-CNN-based hybrid framework (termed PUT+) by introducing the fast Fourier convolution (FFC) into the CNN-based refinement network. The proposed framework introduces an improved Patch-based Vector Quantized Variational Auto-Encoder (P-VQVAE+). The encoder transforms the masked region into non-overlapping patch-based unquantized feature vectors as the input of Un-Quantized Transformer (UQ-Transformer). The decoder restores the masked region from the predicted quantized features output by the UQ-Transformer while maintaining the unmasked region unchanged. Many experimental results show that the proposed method outperforms the state-of-the-art by a large margin, especially for image inpainting with large masked areas. The code is available at https://github.com/GZHU-DVL/PUTplus.

Inpainting

Margin (machine learning)

10.1109/icip49359.2023.10222218

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