Rijun Wang

ORCID: 0000-0003-1576-0793
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About
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Research Areas
  • Industrial Vision Systems and Defect Detection
  • Wood and Agarwood Research
  • Remote Sensing and LiDAR Applications
  • Adaptive Control of Nonlinear Systems
  • Advanced Control and Stabilization in Aerospace Systems
  • Smart Grid and Power Systems
  • Advanced Neural Network Applications
  • Infrastructure Maintenance and Monitoring
  • Inertial Sensor and Navigation
  • Fault Detection and Control Systems
  • Manufacturing Process and Optimization
  • Electron Spin Resonance Studies
  • Electric Vehicles and Infrastructure
  • Power Systems and Renewable Energy
  • Power Systems and Technologies
  • Machine Fault Diagnosis Techniques
  • Optical Systems and Laser Technology
  • Gear and Bearing Dynamics Analysis
  • 3D Surveying and Cultural Heritage
  • Target Tracking and Data Fusion in Sensor Networks
  • Traffic Prediction and Management Techniques
  • Chemotherapy-induced cardiotoxicity and mitigation
  • Industrial Technology and Control Systems
  • Integrated Energy Systems Optimization
  • Welding Techniques and Residual Stresses

Guangxi Normal University
2023-2025

Guangxi University
2025

Hechi University
2023-2024

Northeast Electric Power University
2020-2023

Shandong Jianzhu University
2017-2022

Electric Power University
2022

North University of China
2016-2021

Shanxi Cardiovascular Hospital
2019-2021

Cangzhou Central Hospital
2021

Tianjin Medical University
2021

This study is focused towards analyzing the heat and flow movement among two stretching rotating disks inside water-based carbon nanotubes. The idea of thermal boundary conditions convection used system expressed in partial differential equations. Using similarity techniques, model successfully converted to a nonlinear ordinary equation. A familiar collocation method simulate outcomes governed while validated through set tables assessed with existing literature. physical aspects proposed...

10.3390/math10091542 article EN cc-by Mathematics 2022-05-04

Accurate detection of wood defects plays a crucial role in optimizing utilization, minimizing corporate expenses, and safeguarding precious forest resources. To achieve precise identification surface wood, we present novel approach called the Omni-dynamic convolution coordinate attention-based YOLO (ODCA-YOLO) model. This model incorporates an Omni-dimensional dynamic convolution-based attention (ODCA) mechanism, which significantly enhances its ability to detect small target boosts...

10.3390/f14091885 article EN Forests 2023-09-16

The detection of defects on the surface is great importance for both production and application strip steel. In order to detect accurately, an improved YOLOv7-based model detecting steel developed. To enhances ability extract features identify small features, ConvNeXt module introduced backbone network structure, attention mechanism embedded in pooling module. reduce size improves inference speed model, C3 was used replace ELAN head. experimental results show that, compared with original...

10.3390/coatings13030536 article EN Coatings 2023-03-01

The detection of wood defect is a crucial step in processing and manufacturing, determining the quality reliability products. To achieve accurate detection, novel method named BPN-YOLO proposed. ordinary convolution ELAN module YOLOv7 backbone network replaced with Pconv partial convolution, resulting P-ELAN module. Wood performance improved by this modification while unnecessary redundant computations memory accesses are reduced. Additionally, Biformer attention mechanism introduced to more...

10.3390/f15071096 article EN Forests 2024-06-25

Wood surface defect detection is a critical step in wood processing and manufacturing. To address the performance degradation caused by small targets multi-scale features detection, novel deep learning model proposed this study, FDD-YOLO, specifically designed for task. In feature extraction stage, C2f module funnel attention (FA) mechanisms are integrated into design of C2f-FA to enhance model’s ability extract defects various sizes. Additionally, Dual Spatial Pyramid Pooling-Fast (DSPPF)...

10.3390/f16020308 article EN Forests 2025-02-10

Introduction Tomatoes are one of the most economically significant crops worldwide, with their yield and quality heavily impacted by foliar diseases. Effective detection these diseases is essential for enhancing agricultural productivity mitigating economic losses. Current tomato leaf disease methods, however, encounter challenges in extracting multi-scale features, identifying small targets, complex background interference. Methods The model Tomato Focus-Diffusion Network (TomaFDNet) was...

10.3389/fpls.2025.1530070 article EN cc-by Frontiers in Plant Science 2025-04-24

The detection and the reconstruction of actuator faults in a flight control system are crucial to avoid negative impacts on aircraft itself, as well human environmental systems. In this paper, an fault scheme based classification for hex-rotor unmanned aerial vehicle designed. First, type is analyzed classified, then model established multiple classification. Second, (FDR) proposed. proposed scheme, observer group extended Kalman filter (EKF) designed isolation, state feedback required by...

10.1109/access.2019.2927010 article EN cc-by IEEE Access 2019-01-01

Strong background noise and complicated interfering signatures when implementing vibration-based monitoring make it difficult to extract the weak diagnostic features due incipient faults in a multistage gearbox. This can be more challenging multiple coexist. paper proposes an effective approach multi-fault of wind turbine gearbox based on integration minimum entropy deconvolution (MED) multipoint optimal adjusted (MOMEDA). By using simulated periodic transient signals with different signal...

10.3390/e20010010 article EN cc-by Entropy 2017-12-26

Sepsis is a severe infection-induced disease with multiple organ failure, and sepsis-induced cardiomyopathy fatal condition. Inflammatory response oxidative stress are reported to be involved in the development of cardiomyopathy. Dulaglutide novel antidiabetic agent that currently exert an anti-inflammatory effect. The present study aims explore potential protective property dulaglutide on lipopolysaccharide (LPS)-induced injury cardiomyocytes.LPS was used induce vitro model cardiomyocytes....

10.1021/acsomega.0c06326 article EN cc-by-nc-nd ACS Omega 2021-03-18

Wood surface defect detection is a challenging task due to the complexity and variability of types. To address these challenges, this paper introduces novel deep learning approach named SiM-YOLO, which built upon YOLOv8 object framework. A fine-grained convolutional structure, SPD-Conv, introduced with aim preserving detailed information during feature extraction process, thus enabling model capture subtle variations complex details wood defects. In fusion stage, SiAFF-PANet-based module...

10.3390/coatings14081001 article EN Coatings 2024-08-07

<title>Abstract</title> Wood surface defect detection technology offers the advantages of being non-destructive, rapid, accurate, and economical. It plays a crucial role in wood grade sorting, detection, improving quality sawn timber, accelerating automation processing. Currently, there are challenges accurately identifying multi-scale defects insufficient overall accuracy field detection. To address these issues, new model named DRR-YOLO is proposed this study. This combines DWR module DRB...

10.21203/rs.3.rs-4931405/v1 preprint EN Research Square (Research Square) 2024-09-18

<title>Abstract</title> Using deep learning methods is a promising approach to improving bark removal efficiency and enhancing the quality of wood products. However, lack publicly available datasets for plate segmentation in processing poses challenges researchers this field. To address issue, benchmark named WPS-dataset proposed study, which consists 4863 images. We designed an image acquisition device assembled it on equipment capture images real industrial settings. evaluated using six...

10.21203/rs.3.rs-4304645/v1 preprint EN Research Square (Research Square) 2024-04-30

Accurate detection of wood surface defects plays a pivotal role in enhancing grade sorting precision, maintaining high standards processing quality, and safeguarding forest resources. This paper introduces an efficient precise approach to detecting defects, building upon enhancements the YOLOv8 model, which demonstrates significant performance handling multi-scale small-target commonly found wood. The proposed method incorporates dilation-wise residual (DWR) module trunk deformable large...

10.3390/f15071176 article EN Forests 2024-07-06

An improved Sage-Husa adaptive extended Kalman filter algorithm is proposed to ensure the precision and stability of calculating attitude angles a multi-rotor Unmanned Aerial Vehicle (UAV) under actual flight conditions, such as unknown time-varied noise statistical properties, main disturbance source in vibration high dynamically changed. The uses angle variance estimated by gyroscope real time estimate system only adopts an measurement on-line filtering. Meanwhile, it introduces criterion...

10.3788/ope.20142212.3384 article EN Optics and Precision Engineering 2014-01-01

Zhang, Y.X.; Li, T.Y.; B.; J.; Wang, R.J.; Jiang, L.R., and Diao, X.H., 2020. Fault detection method of AC charging pile in coastal cities based on Kalman filtering algorithm. In: Guido Aldana, P.A. Kantamaneni, K. (eds.), Advances Water Resources, Coastal Management, Marine Science Technology. Journal Research, Special Issue No. 104, pp. 210–215. Coconut Creek (Florida), ISSN 0749-0208.Aiming at the problems fault detection, such as large amount iterative calculation low ability...

10.2112/jcr-si104-038.1 article EN Journal of Coastal Research 2020-10-05

In order to satisfy the demands of stabilized control for airborne platform mounted on multi-rotor Unmanned Aerial Vehicle (mUAV), a fuzzy adaptive PID hybrid strategy with switching condition is put forward, and structure has dual rate-speed loops. After analyzed anti-disturbance ability deeply, self-adjusting factor self-learning rules are introduced improve rapid response capability system. The variable speed integral used ensure high stable precision achieve smoothly. Experimental...

10.1109/itnec.2016.7560459 article EN 2016 IEEE Information Technology, Networking, Electronic and Automation Control Conference 2016-05-01

Quickly detecting and accurately diagnosing early bearing faults is the key to ensuring stable operation of high-precision equipment. In actual industrial applications, it common face issues big data poor fault identification accuracy. To automatically realize diagnostics rolling bearings, a convolutional neural network algorithm feature enhancement method proposed. A two-dimensional space extraction based on Cyclostationary theory wavelet transform shows good results in noise suppression....

10.3390/app12178414 article EN cc-by Applied Sciences 2022-08-23
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