IEEJ Transactions on Electrical and Electronic Engineering最新文献_第2页

Demagnetization Process of Nd-Fe-B Sintered and Ferrite Magnets 钕铁硼烧结铁氧体磁体的退磁过程

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-24 DOI: 10.1002/tee.24264

Yutaka Matsuura

引用次数: 0

Classification Method for Fatigue Driving Signals Based on Multiple Classifier Analysis 基于多分类器分析的疲劳驾驶信号分类方法

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-23 DOI: 10.1002/tee.24260

Zhendong Mu

{"title":"Classification Method for Fatigue Driving Signals Based on Multiple Classifier Analysis","authors":"Zhendong Mu","doi":"10.1002/tee.24260","DOIUrl":"https://doi.org/10.1002/tee.24260","url":null,"abstract":"This study constructs an ensemble learning model under several classifiers by optimizing the hyperparameters of the base classifier to address the low accuracy issue of fatigue driving detection that uses traditional classifiers. In this study, the fatigue driving electroencephalogram (EEG) signals of 26 participants were analyzed using various classifiers, namely, k-nearest neighbor, back-propagation neural network, support vector machine, random forest, Gaussian naive Bayes, and quadratic discriminant analysis, as base classifiers. This study also used 10-fold cross-validation to evaluate the model and four ensemble learning methods, namely, bagging, boosting, stacking, and voting, for comparative analysis. Through the analysis of the EEG signals of the 26 participants, a conclusion could be drawn that the average recognition rate of the ensemble learning model for the participants was improved to 95% after hyperparameter optimization of the base classifier. Moreover, an ensemble learning model was constructed under multiple classifiers to improve the recognition rate of fatigue driving signals. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 4","pages":"647-655"},"PeriodicalIF":1.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on a Novel Online Obstacle Avoidance Algorithm in an Asymmetric Teleoperation 一种新的非对称遥操作在线避障算法研究

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-23 DOI: 10.1002/tee.24259

Hua Chen, Baoyu Shi

{"title":"Research on a Novel Online Obstacle Avoidance Algorithm in an Asymmetric Teleoperation","authors":"Hua Chen, Baoyu Shi","doi":"10.1002/tee.24259","DOIUrl":"https://doi.org/10.1002/tee.24259","url":null,"abstract":"Teleoperation robots are being used more and more widely. The safety issues of robots during operation are increasingly attracting people's attention; In actual dangerous environments, during the operation of the teleoperation control system, the real-time presence of obstacles com-presses the robot's safe workspace, leading to the failure of planned paths. This study is mainly about a robot online obstacle avoidance algorithm based on offline trajectory, aiming at the problems that ensure that the slave–robot is not affected during operation. Besides, this algorithm achieves the goal of avoiding obstacles by selecting obstacle avoidance parameters and allowing the robot to switch between primary and secondary movements in real-time. Two robot motion scenarios were selected in the article. One is obstacle avoidance with a single arm of slave–robot and the other is coordinated obstacle avoidance with a dual-arm robot for simulation experiments. The simulation experiment results showed that the algorithm proposed in this article is suitable for the designed asymmetric teleoperation system, the slave–robot can actively avoid obstacles under the control of the main robot. The algorithm perfectly satisfied the industry standards, and meet the design requirements of the teleoperation control system. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 4","pages":"656-664"},"PeriodicalIF":1.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electromagnetic Field Modeling and Optimization Design of Axial Magnetic Flux Eddy Current Brake Considering Non-Ideal Factors 考虑非理想因素的轴向磁通涡流制动器电磁场建模与优化设计

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-22 DOI: 10.1002/tee.24272

Fan Yang, Bin Ouyang, Xiaofei Zhai

{"title":"Electromagnetic Field Modeling and Optimization Design of Axial Magnetic Flux Eddy Current Brake Considering Non-Ideal Factors","authors":"Fan Yang, Bin Ouyang, Xiaofei Zhai","doi":"10.1002/tee.24272","DOIUrl":"https://doi.org/10.1002/tee.24272","url":null,"abstract":"Accurate analytical calculation of electromagnetic field is the basis of research and optimization of axial magnetic flux eddy current brake, and structural optimization design is the key to improving system performance and reducing engineering construction costs. In order to establish an accurate analytical calculation model of electromagnetic field of axial magnetic flux eddy current brake, based on the two-dimensional analytical calculation model of electromagnetic field, this paper comprehensively considers the influence of non-ideal factors such as core saturation, transverse dynamic end effect and secondary skin effect on the electromagnetic characteristics of axial magnetic flux eddy current brake, and obtains an improved analytical calculation model of electromagnetic field by introducing corresponding correction coefficients, and verifies the accuracy of the analytical calculation model of electromagnetic field by comparing with the numerical calculation results of three-dimensional electromagnetic field finite element model. On this basis, an improved multi-objective particle swarm optimization algorithm is adopted to optimize the system design, so as to increase the electromagnetic braking torque, reduce the electromagnetic axial force and reduce the secondary mass. Finally, the accuracy of the above electromagnetic field analytical calculation model and optimization design results is verified on the experimental research platform of axial magnetic flux eddy current brake, which can provide theoretical basis for subsequent researchers to design and optimize the electromagnetic scheme. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 7","pages":"1107-1117"},"PeriodicalIF":1.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Comparative Analysis of Deepfake Detection Methods Using Overlapping Multiple Dynamic Images 基于多幅动态图像重叠的深度造假检测方法比较分析

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-21 DOI: 10.1002/tee.24258

Enkhtaivan Purevsuren, Junya Sato, Takuya Akashi

{"title":"A Comparative Analysis of Deepfake Detection Methods Using Overlapping Multiple Dynamic Images","authors":"Enkhtaivan Purevsuren, Junya Sato, Takuya Akashi","doi":"10.1002/tee.24258","DOIUrl":"https://doi.org/10.1002/tee.24258","url":null,"abstract":"Deepfake technology, which uses artificial intelligence to create realistic fake images, audio, and videos, has raised significant concerns due to its potential for misuse and manipulation. The emergence of deepfake technology poses a significant threat to the integrity of digital content, necessitating robust detection mechanisms. This paper proposes a novel method for deepfake detection by combining Overlapping Multiple Dynamic Images (OMDI) and Inversed Overlapping Multiple Dynamic Images (I-OMDI). Both representations capture temporal inconsistencies and subtle visual artifacts in fake videos by effectively utilizing spatial–temporal information. Our approach employs EfficientNetB7 as the backbone for feature extraction, enabling the model to distinguish between real and fake videos with high accuracy. By combining OMDI and I-OMDI with a weighted average strategy, we amplify the strengths of each method. Specifically, we assign equal weights of 0.5 to OMDI and I-OMDI based on their individual contributions to performance metrics. This balance yields substantial performance improvements across multiple datasets. When evaluated on the Celeb-DF v2 and DFDC datasets, our proposed model achieves state-of-the-art results, with an AUC score of 0.9952 on Celeb-DF v2 and 0.9947 on DFDC. These results underscore the robustness of the combined OMDI and I-OMDI methods in identifying deepfake videos. Furthermore, our model demonstrates superior performance compared to existing methods, including those by Tran et al. and Heo et al., underscoring its effectiveness in practical deepfake detection applications. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 6","pages":"886-898"},"PeriodicalIF":1.0,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radial Stress Distribution in Micro Dry-Etched Perfluorinated Polymer Optical Fibers 微干蚀刻全氟聚合物光纤的径向应力分布

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-21 DOI: 10.1002/tee.24257

Takuto Nakanishi, Ryo Nakashima, Keito Ishida, Yuji Wada, Cheng-Yao Lo, Kentaro Nakamura, Heeyoung Lee, Yosuke Mizuno, Daisuke Yamane

引用次数: 0

Statistical Reliability of Data-Driven Science and Technology 数据驱动科学技术的统计可靠性

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-21 DOI: 10.1002/tee.24262

Ichiro Takeuchi

引用次数: 0

Simulation Analysis and Scaling Test of Transformer Turn to Turn Short-Circuit Transient Characteristics Based on Field-Circuit Cooperation 基于场路协同的变压器匝间短路暂态特性仿真分析及标定试验

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-14 DOI: 10.1002/tee.24265

Zhiwei Chen, Ruibo Yang, Junxian Wang, Nianwen Xiang, Xin Liu

{"title":"Simulation Analysis and Scaling Test of Transformer Turn to Turn Short-Circuit Transient Characteristics Based on Field-Circuit Cooperation","authors":"Zhiwei Chen, Ruibo Yang, Junxian Wang, Nianwen Xiang, Xin Liu","doi":"10.1002/tee.24265","DOIUrl":"https://doi.org/10.1002/tee.24265","url":null,"abstract":"It is a common problem that transformers have different degrees of the turn to turn short-circuit (TTS). The fault severity depends on the location and size of the short-circuit. In this paper, the position of TTS is controlled in the middle of the transformer winding. And then, one transformer with 5%, 10% and 20% TTS on the high voltage side of the phase B was constructed. The transformer TTS faults from slight to deep are simulated, and the effect of different degrees of TTS on the transformer winding is analyzed. First, a three-phase transformer is modeled by the numerical computation method and simulated by the field-circuit coupling mode. The distribution of parameters such as the short-circuit current, the spatial magnetic leakage and the radial electric force under the TTS different degrees are studied. Second, combined with the winding losses, the “electric-magnetic-thermal-structural” multi-physical field coupling simulation is established. Based on this, the transient analysis of the winding temperature rise, the thermal stress and the deformation were carried out, then the TTS capacity of the transformer is estimated according to the transformer structure and the material tolerance value. Finally, the paper compares the winding temperature distribution changes between the simulation and test by designing the winding temperature rise test. Base on the above studies, the reliability of the model established in this paper and the accuracy of the transformer TTS bearing capacity from the test are verified. These provide some engineering reference significance for the subsequent transformer fault maintenance. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 7","pages":"1016-1024"},"PeriodicalIF":1.0,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identifying Common Properties of Coefficient Matrices Appearing in Conventional or Invariant Scheme of Method of Fundamental Solutions 基本解法常规格式或不变格式中出现的系数矩阵的一般性质的辨识

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-14 DOI: 10.1002/tee.24263

Kohei Yaji

引用次数: 0

Study of Wind Power Prediction in ELM Based on Improved SSA 基于改进SSA的ELM风力预测研究

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-13 DOI: 10.1002/tee.24255

Lei Shao, Wenxuan Huang, Hongli Liu, Ji Li

{"title":"Study of Wind Power Prediction in ELM Based on Improved SSA","authors":"Lei Shao, Wenxuan Huang, Hongli Liu, Ji Li","doi":"10.1002/tee.24255","DOIUrl":"https://doi.org/10.1002/tee.24255","url":null,"abstract":"This paper proposes a short-term wind power prediction model based on the improved Sparrow Search Algorithm (SSA) and Extreme Learning Machine(ELM) for anomalous wind power information from wind farms. The objective is to enhance the accuracy of short-term wind power prediction. The model employs the extraction of features utilizing raw wind power history data from wind farms, in conjunction with the application of Variable Importance in Projection indices in Partial Least Squares (PLS-VIP). As the ELM network model is susceptible to the influence of randomly generated input weights and thresholds at the outset of training, a solution is proposed whereby the input weights and thresholds of the ELM are optimized using SSA. The optimal weights and thresholds identified by SSA are then applied to the ELM model, thus forming the SSA-ELM model. To address the limitations of traditional SSA, namely its susceptibility to local optimal solutions and poor global search ability, an improved SSA-ELM algorithm is proposed. The improved SSA-ELM algorithm introduces chaotic sequences and an exchange learning strategy to the original SSA. The rationale behind incorporating chaotic sequences is to enhance the quality of the initial solution, ensuring a more uniform distribution of sparrow positions and, consequently, a more diverse sparrow population. This, in turn, enables the algorithm to achieve a more effective global search capability through the utilization of the exchange learning strategy. Subsequently, all the data are fed into the SSA-ELM model for prediction purposes. The simulation results demonstrate that the model exhibits enhanced prediction accuracy and improved practical applicability in wind power prediction. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 6","pages":"853-861"},"PeriodicalIF":1.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0