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学者姓名:陈建国
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AGV系统作为一种典型的复杂产品,具有开发周期长、定制成本高、售后服务需求性高等特点.AGV系统通常在工业领域运输元器件生产的任务中表现良好,可以通过系统内部的定位导航实现运输任务的全自动进行.但是,传统AGV系统只能在固定线路上运行而且缺乏灵活性.针对这一问题,提出了一种基于边缘检测的自适应AGV系统.系统基于图像边缘检测等原理进行道路路径的自适应检测,同时结合霍夫直线变换方法,提高了 AGV系统的鲁棒性和自适应性,实现了系统的高效协同与联动,有力地推动了 AGV系统转型升级.
Keyword :
AGV系统 AGV系统 图像处理 图像处理 自适应检测 自适应检测 边缘检测 边缘检测 运行一体化 运行一体化 霍夫直线变换 霍夫直线变换
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GB/T 7714 | 王成灏 , 黄园奎 , 陈建国 . 一种基于边缘检测的自适应AGV系统 [J]. | 物联网技术 , 2025 , 15 (3) : 148-152,155 . |
MLA | 王成灏 等. "一种基于边缘检测的自适应AGV系统" . | 物联网技术 15 . 3 (2025) : 148-152,155 . |
APA | 王成灏 , 黄园奎 , 陈建国 . 一种基于边缘检测的自适应AGV系统 . | 物联网技术 , 2025 , 15 (3) , 148-152,155 . |
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目的:借助反向传播(BP)神经网络技术,对慢性非特异性腰痛(CNLBP)患者体表力敏数据进行补全与预测分析,并结合函数曲面拟合技术对体表力敏值的分布特征进行初步探究,以期为腧穴体表形态学的解读提供新的视角与数据支撑.方法:纳入30例符合条件的CNLBP患者,采用FDK20压力测痛仪对腰部相应部位施加恒定压力进行探查,每位受试者共采集50个力敏点,并记录对应100 mm疼痛视觉模拟量表的数值.随后运用Matlab软件提取体表力敏点的位置坐标参数,并对数据进行预处理,构建以LA棘突为原点的空间直角坐标系(Xpi,Ypi,VASpi).最后构建BP神经网络预测模型,并运用函数曲面拟合技术实现力敏点的三维可视化.结果:①BP神经网络预测模型结果显示平均识别率为(64.28±11.43)%;②函数曲面拟合三维可视化结果表明,力敏值在体表呈现出波峰与波谷交替的钟形分布模式,且模型坐标具有可追溯性.结论:BP神经网络模型能够初步捕捉并预测CNLBP患者体表力敏点的分布规律;同时,函数曲面拟合技术实现了力敏点的三维形态可视化呈现,为腧穴的科学研究及临床应用提供参考.
Keyword :
力敏 力敏 反向传播神经网络 反向传播神经网络 机器学习 机器学习 穴位敏化 穴位敏化 腰痛 腰痛 针灸 针灸
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GB/T 7714 | 齐诗仪 , 倪友聪 , 杜欣 et al. 基于反向传播神经网络的体表力敏分布特征及数学建模研究 [J]. | 中华中医药杂志 , 2025 , 40 (1) : 396-401 . |
MLA | 齐诗仪 et al. "基于反向传播神经网络的体表力敏分布特征及数学建模研究" . | 中华中医药杂志 40 . 1 (2025) : 396-401 . |
APA | 齐诗仪 , 倪友聪 , 杜欣 , 黄紫娟 , 赵翔 , 陈建国 et al. 基于反向传播神经网络的体表力敏分布特征及数学建模研究 . | 中华中医药杂志 , 2025 , 40 (1) , 396-401 . |
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3d transition metal-based lithium-rich cathodes (LRMNC), exemplified by the chemical formulas Li1+xTM1-xO2 and xLi(2)MnO(3)center dot(1-x)LiTMO2 (where TM represents Mn, Ni, or Co), exhibit markedly higher capacities (similar to 250-300 mAh/g) and energy densities (similar to 1000 Wh/kg) than their conventional counterparts. This enhanced performance is a result of synergistic cationic and anionic redox reactions, particularly those involving oxygen, which significantly boost the cathode's specific capacity and energy density. Nonetheless, LRMNCs encounter formi-dable challenges, including structural degradation, capacity and voltage decay, hysteresis, and sluggish kinet-ics-issues that stem from complex cationic and anionic redox processes (CAR). The interplay between these redox reactions is sophisticated and crucial for optimizing the performance of LRMNCs. Our study offers an in- depth analysis of these processes, highlighting their intricate interactions, and aims to enhance the stability and efficiency of these cathode materials. Additionally, we provide a comprehensive review of the evolution of layered lithium-rich oxide (LLRO) cathodes, detailing the development of CAR processes, their impacts, and potential strategies for improvement.
Keyword :
Cationic and anionic redox processes (CAR) Cationic and anionic redox processes (CAR) Consequences Consequences Doping Doping Lithium rich 3d transition metal (Mn/Ni/Co) cathode (LRMNC) Lithium rich 3d transition metal (Mn/Ni/Co) cathode (LRMNC) Surface engineering Surface engineering
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GB/T 7714 | Bhosale, Sanjana S. , Hong, Ruoyu , Li, Minglin et al. Unlocking the full potential of 3d transition metal-based lithium-rich cathodes: Enhancing redox and mitigating degradation [J]. | JOURNAL OF ENERGY STORAGE , 2025 , 111 . |
MLA | Bhosale, Sanjana S. et al. "Unlocking the full potential of 3d transition metal-based lithium-rich cathodes: Enhancing redox and mitigating degradation" . | JOURNAL OF ENERGY STORAGE 111 (2025) . |
APA | Bhosale, Sanjana S. , Hong, Ruoyu , Li, Minglin , Chen, Jianguo . Unlocking the full potential of 3d transition metal-based lithium-rich cathodes: Enhancing redox and mitigating degradation . | JOURNAL OF ENERGY STORAGE , 2025 , 111 . |
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Rechargeable graphene-based aluminum-ion batteries (AIBs) are recognized as a promising energy storage system. The impact of the macroscopic morphology of graphene electrodes on electrochemical performance, however, has been minimally explored. Reduced graphene oxide (rGO) was synthesized via a modified Hummers method and hydrothermal reduction, utilizing natural flake graphite as the starting material. The traditional electrode preparation process was employed, where the active material, conductive agent, and binder were combined to form a slurry for coating and subsequent drying, resulting in the rGO electrode. Aerogel-shaped rGO (rGOA) and film-shaped rGO (rGOF) electrodes were additionally crafted through freeze-drying and filtration drying techniques. Among the three distinct rGO electrode morphologies tested as cathodes in AIBs, the rGOF electrode demonstrated outstanding electrochemical characteristics, including a high specific capacity of 149.3 mAh/g at 500 mA/g, a substantial rate performance of 55.3 mAh/g at 10,000 mA/g, and an impressive long-term cycling stability of 94.5 mAh/g with a Coulombic efficiency of 95.8 % at 5000 mA/g after 10,000 cycles. These superior properties are attributed to the rGOF's binder-free, densely packed structure. The findings suggest that the rGOF electrode holds significant potential as a cathode material for AIBs, offering advantages in both scalable preparation and superior electrochemical performance.
Keyword :
Aluminum ion batteries Aluminum ion batteries Electrochemical performance Electrochemical performance Electrodes Electrodes Macroscopic morphology Macroscopic morphology Reduced graphene oxide Reduced graphene oxide
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GB/T 7714 | Wang, Zhenshuai , Zhang, Dai , Chen, Jianguo et al. High-performance aluminum-ion batteries enabled by architected reduced graphene oxide electrodes [J]. | SURFACES AND INTERFACES , 2025 , 63 . |
MLA | Wang, Zhenshuai et al. "High-performance aluminum-ion batteries enabled by architected reduced graphene oxide electrodes" . | SURFACES AND INTERFACES 63 (2025) . |
APA | Wang, Zhenshuai , Zhang, Dai , Chen, Jianguo , Hong, Ruoyu , Li, Minglin . High-performance aluminum-ion batteries enabled by architected reduced graphene oxide electrodes . | SURFACES AND INTERFACES , 2025 , 63 . |
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心电信号广泛应用于心脏疾病的医学检测中,可穿戴动态心电监测设备可以实现对心律失常的风险识别并预警. 相比于静息心电信号,动态心电信号在采集过程中会受到更大运动伪迹的干扰,这些干扰会覆盖心电信号的关键信息,限制其临床应用. 本文兼顾心电信号局部和全局特征,利用其周期性,研究了一种将心电信号低频PT波和高频QRS波群分开处理的两步式自适应阈值滤波算法,适用于单通道心电信号中的运动伪迹滤除. 第一步先通过多分辨率阈值初步抑制心电信号低频部分中的运动伪迹;第二步,对受运动伪迹影响而不平衡的QRS波进行自适应阈 值修复,通过对QRS波形调节,减少心电信号中高频部分运动伪迹,同时设置自适应阈值对心电信号P波、T波对应的小波系数进行处理,超出自适应阈值范围的小波系数通过波形缩放进行调整,进一步抑制低频运动伪迹. 研究通过不同心电数据库评估算法的性能 . 在输入信噪比从-10 ~10 dB时,心电信号信噪比提升了10.912 2 dB和 4.391 2 dB,滤波后心电信号与纯净心电信号的相关系数分别为 0.687 6和 0.978 3,提取的运动伪迹与原运动伪迹相关系数分别为0.953 0和0.852 9. 实验结果表明,算法在不同噪声水平下,利用自适应阈值的优点,能有效复原受运动伪迹污染的心电信号波形特征,最大限度保留心电信号的临床信息,可作为可穿戴心电设备滤除运动伪迹的有效工具.
Keyword :
信号处理 信号处理 小波变换 小波变换 心电信号 心电信号 自适应阈值 自适应阈值 运动伪迹 运动伪迹
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GB/T 7714 | 吕建行 , 李玉榕 , 陈建国 et al. 两步式自适应阈值法滤除心电信号中运动伪迹 [J]. | 电子学报 , 2024 . |
MLA | 吕建行 et al. "两步式自适应阈值法滤除心电信号中运动伪迹" . | 电子学报 (2024) . |
APA | 吕建行 , 李玉榕 , 陈建国 , 高宁 . 两步式自适应阈值法滤除心电信号中运动伪迹 . | 电子学报 , 2024 . |
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ECG (ElectroCardioGram) signals are widely used in the medical detection of heart disease, and wearable dynamic ECG monitoring devices enable the detection and early warning of cardiac arrhythmias. Compared to resting ECG signals, dynamic ECG signals are more susceptible to interference from motion artifacts during the data acquisition process. These motion artifacts can obscure critical information within the ECG signal, limiting its clinical utility. In this paper, taking into account the local and global characteristics of the ECG signal and using its periodicity, a two-stage adaptive threshold filtering algorithm is investigated to process the low-frequency PT wave and the high-frequency QRS wave group separately, which is suitable for motion artifact filtering in single-channel ECG signal. In the first step, motion artifacts in the low-frequency part of the ECG signal are suppressed by a multi-resolution threshold. In the second step, the imbalanced QRS wave affected by motion artifacts is repaired by adaptive threshold, adjusting the QRS waveform to reduce motion artifacts in the high-frequency portion of the ECG signal, while setting adaptive thresholds to process the wavelet coefficients corresponding to the P-wave and T-wave of the ECG signal. Wavelet coefficients beyond the adaptive threshold range are adjusted via waveform scaling to further suppress the low-frequency motion artifacts. In this paper, the performance of the algorithm is evaluated using different ECG databases. When the input SNR changes from -10~10 dB, the SNR of the ECG signal increases by 10.912 2 dB and 4.391 2 dB, respectively, and the correlation coefficients between the filtered ECG signal and the pure ECG signal are 0.687 6 and 0.978 3, respectively, the correlation coefficients between the extracted motion artifacts and the original motion artifacts are 0.953 0 and 0.852 9, respectively. The experimental results show that under different noise levels, the proposed algorithm can effectively recover the ECG waveform characteristics contaminated by motion artifacts by exploiting the advantages of adaptive threshold, and retain the clinical information of ECG signals to the maximum extent, and can be used as an effective tool for filtering motion artifacts in wearable ECG devices. © 2024 Chinese Institute of Electronics. All rights reserved.
Keyword :
adaptive threshold adaptive threshold electrocardiogram electrocardiogram motion artifact motion artifact signal processing signal processing wavelet transform wavelet transform
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GB/T 7714 | Lü, J.-H. , Li, Y.-R. , Chen, J.-G. et al. ECG Motion Artifact Filtering Based on Two-Stage Adaptive Threshold Rules; [两步式自适应阈值法滤除心电信号中运动伪迹] [J]. | Acta Electronica Sinica , 2024 , 52 (10) : 3493-3506 . |
MLA | Lü, J.-H. et al. "ECG Motion Artifact Filtering Based on Two-Stage Adaptive Threshold Rules; [两步式自适应阈值法滤除心电信号中运动伪迹]" . | Acta Electronica Sinica 52 . 10 (2024) : 3493-3506 . |
APA | Lü, J.-H. , Li, Y.-R. , Chen, J.-G. , Gao, N. . ECG Motion Artifact Filtering Based on Two-Stage Adaptive Threshold Rules; [两步式自适应阈值法滤除心电信号中运动伪迹] . | Acta Electronica Sinica , 2024 , 52 (10) , 3493-3506 . |
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目的:结合欧氏距离与多元统计分析探讨慢性非特异性腰痛(CNLBP)患者体表力敏点与传统腧穴在不同病程下的疼痛-位置交互关系。方法:对30例不同病程CNLBP患者进行力敏探查,采用FDK20压力测痛仪在腰部一定区域内施加恒定压力并标记序号,同时受试者填写相应100mm疼痛视觉模拟量表(VAS),共取50个点。采用Matlab软件对力敏点进行位置提取,并对力敏位置、VAS值数据进行预处理与归一化处理。最后计算在约束条件(VAS≥8.0∩d
Keyword :
多元统计分析 多元统计分析 机器学习 机器学习 欧几里得距离 欧几里得距离 穴位敏化 穴位敏化 腰痛 腰痛 针灸 针灸
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GB/T 7714 | 林栋 , 齐诗仪 , 倪友聪 et al. 基于欧氏距离对慢性非特异性腰痛体表腧穴周围力敏点分布特征的研究 [C] //2024中国针灸学会年会 . 2024 . |
MLA | 林栋 et al. "基于欧氏距离对慢性非特异性腰痛体表腧穴周围力敏点分布特征的研究" 2024中国针灸学会年会 . (2024) . |
APA | 林栋 , 齐诗仪 , 倪友聪 , 杜欣 , 黄紫娟 , 赵翔 et al. 基于欧氏距离对慢性非特异性腰痛体表腧穴周围力敏点分布特征的研究 2024中国针灸学会年会 . (2024) . |
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在电气工程专业实践教学过程中凝练出由Turn up、Turn away、Turn back等环节组成的3-Turns教学法。经过多轮的实践应用,3-Turns教学法在实践共同体中提供了一个兼具解释性与可操作性的教学样例。研究发现,3-Turns教学法对实践共同体促进工科生深度学习起到了提质增效的作用;3-Turns教学法为工程实践学习情境的强化设计提供了理论依据与经验支持。该研究验证了基于3-Turns教学法的实践共同体促进工科生深度学习的有效性,为助力工科人才培养质量的持续提升做出了积极的探索与实践。
Keyword :
3-Turns教学法 3-Turns教学法 实践共同体 实践共同体 实践教学 实践教学 深度学习 深度学习
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GB/T 7714 | 陈东毅 , 王武 , 林建新 et al. 3-Turns教学法在实践共同体促进深度学习中的应用 [J]. | 实验室研究与探索 , 2024 , 43 (04) : 151-154 . |
MLA | 陈东毅 et al. "3-Turns教学法在实践共同体促进深度学习中的应用" . | 实验室研究与探索 43 . 04 (2024) : 151-154 . |
APA | 陈东毅 , 王武 , 林建新 , 黄捷 , 陈建国 . 3-Turns教学法在实践共同体促进深度学习中的应用 . | 实验室研究与探索 , 2024 , 43 (04) , 151-154 . |
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In a multicenter case-control investigation, we assessed the efficacy of the Electrooculogram Signal Analysis (EOG-SA) method, which integrates attention-related visual evocation, electrooculography, and nonlinear analysis, for distinguishing between intellectual and developmental disabilities (IDD) and typical development (TD) in children. Analyzing 127 participants (63 IDD, 64 TD), we applied nonlinear dynamics for feature extraction. Results indicated EOG-SA's capability to distinguish IDD, with higher template thresholds and Correlation Dimension values correlating with clinical severity. The template threshold proved a robust indicator, with higher values denoting severe IDD. Discriminative metrics showed areas under the curve of 0.91 (template threshold) and 0.85/0.91 (D2), with sensitivities and specificities of 77.6%/95.9% and 93.5%/71.0%, respectively. EOG-SA emerges as a promising tool, offering interpretable neural biomarkers for early and nuanced diagnosis of IDD.
Keyword :
Attention Attention Electrooculogram (EOG) signals Electrooculogram (EOG) signals Eye movement Eye movement Intellectual and developmental disabilities Intellectual and developmental disabilities Neurodevelopmental disorders Neurodevelopmental disorders Nonlinear analysis techniques Nonlinear analysis techniques
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GB/T 7714 | Qi, Shi-yi , Zhang, Si-jia , Lin, Li-li et al. Quantifying attention in children with intellectual and developmental disabilities through multicenter electrooculogram signal analysis [J]. | SCIENTIFIC REPORTS , 2024 , 14 (1) . |
MLA | Qi, Shi-yi et al. "Quantifying attention in children with intellectual and developmental disabilities through multicenter electrooculogram signal analysis" . | SCIENTIFIC REPORTS 14 . 1 (2024) . |
APA | Qi, Shi-yi , Zhang, Si-jia , Lin, Li-li , Li, Yu-rong , Chen, Jian-guo , Ni, You-cong et al. Quantifying attention in children with intellectual and developmental disabilities through multicenter electrooculogram signal analysis . | SCIENTIFIC REPORTS , 2024 , 14 (1) . |
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文章着眼于早期医学实践中的"按脉致气"理论,并从"经脉"一词的字义及字形出发,解析其蕴含"以水为喻"的文化内涵,从而阐释脉气的流动性特征.在此基础上结合古籍分析,进一步阐述了四肢肘膝关节以下的五输穴、原穴等腧穴在经脉循行路径上所展现的靶向性、联系性和流动性的线性排序属性.为了客观量化脉气的盛衰变化,文章提出结合多通道阵列式电极与非线性动力学分析方法对穴位电学特征进行提取与解析,从而实现对脉气盛衰、腧穴位置以及面积大小等相关经穴信息的初步表征,旨在为腧穴体表特征的客观反映提供了新的研究视角和技术途径.
Keyword :
五输穴 五输穴 原穴 原穴 电势 电势 电学特征 电学特征 电敏 电敏 经脉 经脉 经脉循行 经脉循行 脉气 脉气
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GB/T 7714 | 齐诗仪 , 林锦文 , 王世豪 et al. 从脉气流动探讨"所入为合"的穴位电学特征 [J]. | 中华中医药杂志 , 2024 , 39 (12) : 6749-6754 . |
MLA | 齐诗仪 et al. "从脉气流动探讨"所入为合"的穴位电学特征" . | 中华中医药杂志 39 . 12 (2024) : 6749-6754 . |
APA | 齐诗仪 , 林锦文 , 王世豪 , 陈建国 , 涂娟 , 林丽莉 et al. 从脉气流动探讨"所入为合"的穴位电学特征 . | 中华中医药杂志 , 2024 , 39 (12) , 6749-6754 . |
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