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学者姓名：锁要红
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Abstract ：
Objective: Diabetic retinopathy (DR) is a common complication caused by diabetic and can lead to severe visual impairment or even blindness. With the rise of DR population, clinicians demand to adopt an automated diagnosis for reducing some burden. Automated DR classification may improve efficiency and accuracy, and reduce the burden of clinicians. Methods: A full convolution spatial attention module (FCSAM) and CS-ResNet-101 model are proposed for DR classification. In addition, an image enhancement algorithm is proposed to improve the quality of DR images. Furthermore, the cross-entropy loss function is improved to reduce the overfitting. The EyePACS dataset is utilized as training and testing, and the APTOS 2019 dataset is used as external validation. Results: By comparing evaluation metrics of DR classification among different models, the findings are as follows: (1) Accuracy, specificity, sensitivity and F1 score of the CS-ResNet-101 model with the image enhancement algorithm and the improved loss function reach 98.1%, 99.6%, 98.1% and 98.1%, respectively, and it converges faster than other models. (2) The CS-ResNet-101 model exhibits excellent generalization performance on the external validation. Conclusion: The above experimental results indicate that the proposed model with the image enhancement algorithm and the improved loss function is effective and advanced in terms of DR classification. Advances in knowledge: This work proposes an automated DR classification method based on deep learning and an image enhancement algorithm for DR image. © 2024 Elsevier Ltd
Keyword ：
CS-ResNet-101 CS-ResNet-101 Deep learning (DL) Deep learning (DL) Diabetic retinopathy (DR) Diabetic retinopathy (DR) Image enhancement algorithm Image enhancement algorithm Improved loss function Improved loss function
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| GB/T 7714 | Suo, Y. , He, Z. , Liu, Y. . Deep learning CS-ResNet-101 model for diabetic retinopathy classification [J]. | Biomedical Signal Processing and Control , 2024 , 97 . |
| MLA | Suo, Y. 等. "Deep learning CS-ResNet-101 model for diabetic retinopathy classification" . | Biomedical Signal Processing and Control 97 (2024) . |
| APA | Suo, Y. , He, Z. , Liu, Y. . Deep learning CS-ResNet-101 model for diabetic retinopathy classification . | Biomedical Signal Processing and Control , 2024 , 97 . |
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Plenum shape and position play a significant impact on the heat dissipation performance of battery pack with air-cooled structure. However, the existed plenum shape and position are simple. In this work, four different plenum shapes (slanted, convex, concave and stepped) of the battery thermal management system (BTMS) are designed. Then the influences of plenum shapes and positions (at the inlet, outlet, and inlet & outlet) on the heat dissipation performance of the battery are investigated, respectively. Subsequently, a single factor analysis is performed to obtain the range of the design parameters (Hin, Hout, Rin and Rout) in Design 6. Finally, a multi-objective optimization of Design 6 is carried out to further improve the thermal performance of BTMS. Numerical results demonstrate that: 1) For the significant improvement of the cooling ability, convex plenum is at the inlet & outlet whereas other shape ones are all at the inlet. 2) No matter where it is at the inlet, outlet, or inlet & outlet, the convex plenum achieves the excellent cooling effect in Z- and U-type air-cooled structures. 3) Design 6 (convex plenum at the inlet & outlet) exhibits the best cooling ability among all plenum shapes and positions. 4) The design parameters of the optimized Design 6 are Hin = 17.9 mm, Hout = 19 mm, Rin = 2100 mm and Rout = 2000 mm, and the maximum temperature and temperature difference respectively achieve a 35.06 % (18.921 K) and 76.98 % (19.923 K) reduction under such optimized design parameter settings in comparison with those of the benchmark (Design 9). © 2024 Elsevier Ltd
Keyword ：
Air-cooled structure Air-cooled structure Convex Convex Inlet & outlet Inlet & outlet Optimization Optimization Plenum Plenum
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| GB/T 7714 | Suo, Y. , Tang, C. , Han, E. et al. Comparative assessment and optimization among several plenum shapes and positions for the forced air-cooled battery thermal management system [J]. | Journal of Energy Storage , 2024 , 99 . |
| MLA | Suo, Y. et al. "Comparative assessment and optimization among several plenum shapes and positions for the forced air-cooled battery thermal management system" . | Journal of Energy Storage 99 (2024) . |
| APA | Suo, Y. , Tang, C. , Han, E. , Chen, Z. . Comparative assessment and optimization among several plenum shapes and positions for the forced air-cooled battery thermal management system . | Journal of Energy Storage , 2024 , 99 . |
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针对目前商业有限元软件中缺少挠曲电模块且有限元自主编程数值模拟挠曲电问题的复杂性问题，提出在COMSOL软件中的偏微分方程模块(PDE模块),对考虑挠曲电效应的力电耦合问题直接进行数值模拟的方法.首先，通过数值计算固定边界位移的挠曲电圆筒，验证有限元数值计算方法的正确性.接着，研究挠曲电系数和不同材料梯度指数对圆筒力电耦合的影响.数值结果表明：在微米尺度下，增大挠曲电系数对径向位移的影响很小，但是对圆筒内部的电势和电位移分布影响很大.增大材料梯度指数对挠曲电圆筒内部力电耦合影响非常明显，圆筒内部径向位移相对边界处变化范围逐渐减小，圆筒内部电势呈现负值逐渐减小后转为正数的趋势，而圆筒内部电位移值负值逐渐增大.本工作可以为挠曲电效应数值计算及挠曲电结构设计提供帮助.
Keyword ：
COMSOL多物理场软件 COMSOL多物理场软件 力电耦合 力电耦合 挠曲电效应 挠曲电效应 有限元分析 有限元分析
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| GB/T 7714 | 吁鹏飞 , 孙文超 , 彭黎明 et al. COMSOL中挠曲电圆筒的力电耦合行为分析 [J]. | 福州大学学报(自然科学版) , 2024 , 52 (04) : 430-436 . |
| MLA | 吁鹏飞 et al. "COMSOL中挠曲电圆筒的力电耦合行为分析" . | 福州大学学报(自然科学版) 52 . 04 (2024) : 430-436 . |
| APA | 吁鹏飞 , 孙文超 , 彭黎明 , 锁要红 . COMSOL中挠曲电圆筒的力电耦合行为分析 . | 福州大学学报(自然科学版) , 2024 , 52 (04) , 430-436 . |
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Thermal runaway and volume expansion caused by temperature rise under fast charging of lithium-ion batteries (LIBs) are the major reasons of battery explosion and cycle performance degradation. In this work, considering the radiation heat transfer on the battery surface, an electrochemical-thermal-mechanical coupling model of cylindrical LIBs under fast charging (state of charge (SOC) <= 80%) is developed in order to investigate the distributions of the temperature and stress. Then, choosing 18650 LIBs as the object, the charge efficiency, temperature, and stress distributions are compared between fast charging and galvanostatic operation under SOC <= 80%, respectively. Finally, the influences of the thickness, particle radius, the maximum lithium-ion concentration of the cathode, and initial electrolyte concentration on the temperature, radial stress, and hoop stress of LIB during charge are explored, respectively. Numerical results show that fast charging improves 20.8% of the charge efficiency. Increasing the cathodic thickness and decreasing the cathodic maximum lithium-ion concentration or initial electrolyte concentration can reduce the temperature of LIB during the charge. The results of this work will provide some reference value for the design of LIBs under fast charging.
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| GB/T 7714 | Suo, Yaohong , Jia, Qiongnan , Lin, Mingju et al. Electrochemical-Thermal-Mechanical Coupling Analysis of Lithium-Ion Batteries under Fast Charging [J]. | INTERNATIONAL JOURNAL OF ENERGY RESEARCH , 2024 , 2024 . |
| MLA | Suo, Yaohong et al. "Electrochemical-Thermal-Mechanical Coupling Analysis of Lithium-Ion Batteries under Fast Charging" . | INTERNATIONAL JOURNAL OF ENERGY RESEARCH 2024 (2024) . |
| APA | Suo, Yaohong , Jia, Qiongnan , Lin, Mingju , Chen, Zhongyang . Electrochemical-Thermal-Mechanical Coupling Analysis of Lithium-Ion Batteries under Fast Charging . | INTERNATIONAL JOURNAL OF ENERGY RESEARCH , 2024 , 2024 . |
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Different configurations and proportion of phase change material (PCM) have a vital impact on the thermal performance of the battery thermal management system (BTMS). In this work, the thermal performance of the battery pack is investigated by a combined PCM and air cooling technique. Firstly, four cases of PCM configuration are proposed to investigate the heat dissipation performance. Then PCM proportion is optimized to obtain better temperature uniformity, smaller energy loss and smaller amount of PCM based on Case 4. Finally, subjected to the installation space constraint of battery box (smaller volume), Case 5 is designed to diminish the volume of battery box and the corresponding thermal performance is discussed. The results show that thermal performance with PCM is superior than that without PCM; Case 4 not only enhances the thermal performance but also reduces the amount of PCM; The optimized PCM proportion is only 64 %; Compared with all PCM, the optimized Delta T, Delta P and PCM volume respectively reduce 11.91 % (0.83 K), 11.61 % (4.18 Pa) and 43.06 % (215,544 mm3); Case 5 not only shows more better thermal performance than Case 4 but also reduces 102,200 mm3 (3.48 %) volume of the battery box. The proposed strategy is effective for improving thermal performance of BTMS and saving the amount of PCM.
Keyword ：
Combined PCM and air-cooling structure Combined PCM and air-cooling structure Optimization Optimization PCM configuration PCM configuration PCM proportion PCM proportion Thermal management Thermal management
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| GB/T 7714 | Suo, Yaohong , Tang, Chengbo , Jia, Qiongnan et al. Influence of PCM configuration and optimization of PCM proportion on the thermal management of a prismatic battery with a combined PCM and air cooling structure [J]. | JOURNAL OF ENERGY STORAGE , 2024 , 80 . |
| MLA | Suo, Yaohong et al. "Influence of PCM configuration and optimization of PCM proportion on the thermal management of a prismatic battery with a combined PCM and air cooling structure" . | JOURNAL OF ENERGY STORAGE 80 (2024) . |
| APA | Suo, Yaohong , Tang, Chengbo , Jia, Qiongnan , Zhao, Wenrui . Influence of PCM configuration and optimization of PCM proportion on the thermal management of a prismatic battery with a combined PCM and air cooling structure . | JOURNAL OF ENERGY STORAGE , 2024 , 80 . |
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本实用新型涉及一种可旋转的多自由度货物搬运机构，包括搬运台车，所述搬运台车上设置有与其转动连接的挡板，所述挡板侧端竖向滑动连接有滑动板，所述滑动板外侧沿其长度方向滑动连接有滑块，所述滑块上经两块相互铰接的肋板连接有L型的承载板，两块肋板远离相互铰接端分别与滑块、承载板铰接，所述滑块上设置有用以驱动承载板移动的第一液压缸，该第一液压缸输出端斜向下延伸与承载板连接，所述滑块上固设有第一电机，第一电机顶端连接有齿轮并经齿轮与固设在滑动板上的齿条啮合以驱动滑块滑动，所述滑动板经丝杆驱动与挡板滑动连接，该可旋转的多自由度货物搬运机构结构简单，便捷高效。
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| GB/T 7714 | 锁要红 , 赖光辉 . 一种可旋转的多自由度货物搬运机构 : CN202321362433.2[P]. | 2023-05-31 00:00:00 . |
| MLA | 锁要红 et al. "一种可旋转的多自由度货物搬运机构" : CN202321362433.2. | 2023-05-31 00:00:00 . |
| APA | 锁要红 , 赖光辉 . 一种可旋转的多自由度货物搬运机构 : CN202321362433.2. | 2023-05-31 00:00:00 . |
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Surface effect in the nanoelectrode plays a significant role in the diffusion-induced-stresses which results in fracture at the surface during the charge or discharge of lithium-ion batteries. In this work, considering the surface effect and structural damage, a coupled diffusion-induced deformation model is developed in a nanosphere electrode particle under potentiostatic operation. Then the effects of surface parameters and damage constant on the damage state variable, concentration of lithium-ions, radial stress, hoop stress and equivalent stress are investigated, respectively. Numerical results show that the compressive surface effect reduces the structural damage state variable and the lithium-ion concentration, and hinders the damage through converting the hoop stress from tensile to compressive; The maximum equivalent stress occurs at the surface for smaller damage constant and it will move toward the center for larger damage constant.
Keyword ：
diffusion-induced stress diffusion-induced stress lithium-ion batteries lithium-ion batteries structural damage structural damage surface effect surface effect
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| GB/T 7714 | Suo, Yaohong , Xiao, Junwen , He, Zhaokun . Analysis of Diffusion-Induced Deformation in a Spherical Electrode with Surface Effect and Structural Damage [J]. | MECHANICS OF SOLIDS , 2023 , 58 (3) : 985-993 . |
| MLA | Suo, Yaohong et al. "Analysis of Diffusion-Induced Deformation in a Spherical Electrode with Surface Effect and Structural Damage" . | MECHANICS OF SOLIDS 58 . 3 (2023) : 985-993 . |
| APA | Suo, Yaohong , Xiao, Junwen , He, Zhaokun . Analysis of Diffusion-Induced Deformation in a Spherical Electrode with Surface Effect and Structural Damage . | MECHANICS OF SOLIDS , 2023 , 58 (3) , 985-993 . |
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本实用新型提供了一种用于试管内物质混合后的全自动摇匀机构，包括支架，所述上安装有夹持搅拌机构，所述夹持搅拌机构下于支架内安装有升降支架台，所述夹持搅拌机构包括转动连接于支架上部的竖直主轴，所述竖直主轴的下端上安装有夹紧机构，所述竖直主轴上安装有用于带动夹紧机构上下偏摆的偏摆机构。本实用新型设计合理，通过采用夹持搅拌机构对升降支架台上的试管进行夹持搅拌，减少人工体力操作，方便专业化、安全化的实验环境。
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| GB/T 7714 | 锁要红 , 何昭坤 , 林明钜 . 一种用于试管内物质混合后的全自动摇匀机构 : CN202320623132.4[P]. | 2023-03-27 00:00:00 . |
| MLA | 锁要红 et al. "一种用于试管内物质混合后的全自动摇匀机构" : CN202320623132.4. | 2023-03-27 00:00:00 . |
| APA | 锁要红 , 何昭坤 , 林明钜 . 一种用于试管内物质混合后的全自动摇匀机构 : CN202320623132.4. | 2023-03-27 00:00:00 . |
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The electrochemical and mechanical performance of lithium-ion batteries is greatly affected by the porous electrode materials and dislocation effect. A diffusion-mechanical coupling model of porous electrode particle with dislocation effect is developed under potentiostatic operation in this work. Then, the distributions of lithium-ion concentration, volumetric strain and stress in the electrode particles with/without dislocation effect are analyzed. Finally, the influences of porosity and tortuosity on the lithium-ion concentration, volumetric strain, radial stress, hoop stress and strain energy are numerically discussed, respectively. The results show that dislocation effect retards the diffusion and relieves the electrode particle expansion and stresses. Moreover, larger porosity or smaller tortuosity can enhance the charge efficiency and avoid electrode particle damage or crack nucleation and propagation by reducing the stress and strain energy. Finally, from the perspective of fracture, dislocation effect can resist the crack propagation or avoid the formation of cracks during charge. This work will provide some theoretical guidance to improve the charge efficiency and prolong battery life.
Keyword ：
Diffusion-mechanical coupling Diffusion-mechanical coupling Dislocation Dislocation Lithium-ion batteries Lithium-ion batteries Porous electrode Porous electrode
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| GB/T 7714 | Suo, Yaohong , Yang, Huai , Jia, Qiongnan . Coupled diffusion-mechanical analysis with dislocation effect in porous spherical electrode [J]. | SOLID STATE IONICS , 2023 , 404 . |
| MLA | Suo, Yaohong et al. "Coupled diffusion-mechanical analysis with dislocation effect in porous spherical electrode" . | SOLID STATE IONICS 404 (2023) . |
| APA | Suo, Yaohong , Yang, Huai , Jia, Qiongnan . Coupled diffusion-mechanical analysis with dislocation effect in porous spherical electrode . | SOLID STATE IONICS , 2023 , 404 . |
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Thermopolarization effect, refers to the coupling between electric polarization and temperature gradient, represents the linear response of electric polarization to temperature gradient. Although the thermal polarization effect was observed in many experiments, the qualitative and quantitative effects of thermal polarization on solids have not been studied. Thus, to clarify the quantitative impact of thermopolarization effect, based on the linear piezoelectric theory, the fundamental equations of the thermal-piezoelectric dielectric with the thermopolarization effect were derived, and a hollow piezoelectric cylinder was analyzed. The results show that the increasing thermopolarization coefficient can change the radial stress and circumferential stress sign, which is helpful to regulate the stress distribution in the cylinder. Besides, an interesting result shows that the increasing thermopolarization coefficient can shorten the time of the coupling process to the steady state. These results are useful for understanding the basic mechanical and physical properties of the thermo-electro-elastic multi-field coupling of piezoelectric cylinders. It helps to provide useful guidance for the design of microelectronic devices working in harsh environments.
Keyword ：
Piezoelectric Piezoelectric temperature gradient temperature gradient thermo-electro-mechanical coupling thermo-electro-mechanical coupling thermopolarization effect thermopolarization effect
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| GB/T 7714 | Yu, Pengfei , Peng, Liming , Suo, Yaohong . Thermo-electro-elastic analysis of piezoelectric hollow cylinder with thermopolarization effect [J]. | JOURNAL OF THERMAL STRESSES , 2023 , 47 (2) : 250-262 . |
| MLA | Yu, Pengfei et al. "Thermo-electro-elastic analysis of piezoelectric hollow cylinder with thermopolarization effect" . | JOURNAL OF THERMAL STRESSES 47 . 2 (2023) : 250-262 . |
| APA | Yu, Pengfei , Peng, Liming , Suo, Yaohong . Thermo-electro-elastic analysis of piezoelectric hollow cylinder with thermopolarization effect . | JOURNAL OF THERMAL STRESSES , 2023 , 47 (2) , 250-262 . |
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