IEEJ Transactions on Electrical and Electronic Engineering最新文献

On-Chip Analytical Method for Investigating Protrusive Forces in Growing Plant Roots† 芯片上分析方法研究植物根系生长中的突出力

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-30 DOI: 10.1002/tee.70081

Jing Li, Michitaka Notaguchi, Isaku Kanno, Hirotaka Hida

{"title":"On-Chip Analytical Method for Investigating Protrusive Forces in Growing Plant Roots†","authors":"Jing Li, Michitaka Notaguchi, Isaku Kanno, Hirotaka Hida","doi":"10.1002/tee.70081","DOIUrl":"https://doi.org/10.1002/tee.70081","url":null,"abstract":"In this study, we present an on-chip analytical method using a microfluidic device to characterize the mechanical properties in growing roots. Roots are essential organs for plants and grow under heterogeneous conditions in soil. Especially, the mechanical impedance in soil significantly affects root growth. Understanding the mechanical properties of roots and the physical interactions between roots and soil is important in plant science and agriculture. However, an effective method for directly evaluating the mechanical properties of growing roots has not been established. To overcome this technical issue, we developed a polydimethylsiloxane (PDMS) microfluidic device integrated with a cantilevered sensing pillar for measuring the protrusive force generated by the growing roots. Using the developed device, we analyzed the mechanical properties of the roots in a model plant, Arabidopsis thaliana. The root growth behavior and the mechanical interaction with the sensing pillar were recorded using a time-lapse microscopy system. We successfully quantified the mechanical properties of growing roots including the protrusive force and apparent Young's modulus based on a simple physical model considering the root morphology. © 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":"1134-1140"},"PeriodicalIF":1.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144255869","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

Searching for Stiffness Singularity Using Directional Palpation by a Microfinger and its Scanning Condition Dependence 微指定向触诊刚度奇异点搜索及其扫描条件依赖性

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-04-28 DOI: 10.1002/tee.70029

Yuto Hori, Satoshi Konishi

{"title":"Searching for Stiffness Singularity Using Directional Palpation by a Microfinger and its Scanning Condition Dependence","authors":"Yuto Hori, Satoshi Konishi","doi":"10.1002/tee.70029","DOIUrl":"https://doi.org/10.1002/tee.70029","url":null,"abstract":"Minimally invasive treatment has recently emerged as a dominant procedure, as it reduces the patients' physical burden. However, it is still limited by the lack of tactile-sensation feedback from the invading device. We have reported a technology for conducting stiffness-singularity search in an elastic object based on palpation using a microfinger that was integrated with an artificial muscle and a tactile sensor. Here, to advance the application of the technology in medical diagnosis, we focused on tumor detection facilitated by palpation diagnosis using the microfinger. Notably, the miniaturized microfinger exhibits bending actuation, which imparts it with directivity. We have demonstrated an efficient searching method for singularities based on the directivity of the microfinger. Here, we estimated the condition dependence of the search method, as it is key to achieving the application of palpation diagnosis, and confirmed the accuracy of the proposed technology for estimating singularities. Thus, we present a highly efficient search method that offers feedback on tactile information. © 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":"1128-1133"},"PeriodicalIF":1.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256565","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

Interleaved DC/DC Converter with Soft Switching Based on Distributed Partially Coupled Integrated Inductors 基于分布式部分耦合集成电感的软开关交错DC/DC变换器

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI: 10.1002/tee.70001

Liang Qian, Shuhai Quan, Yinfeng Zhao, Jingxiang Gao

{"title":"Interleaved DC/DC Converter with Soft Switching Based on Distributed Partially Coupled Integrated Inductors","authors":"Liang Qian, Shuhai Quan, Yinfeng Zhao, Jingxiang Gao","doi":"10.1002/tee.70001","DOIUrl":"https://doi.org/10.1002/tee.70001","url":null,"abstract":"The power of DC/DC converters can be significantly improved using interleaved DC/DC converters. The losses in power switching are significantly reduced using a resonant circuit composed of inductors and other components, which is a useful method for improving efficiency. A growing number of studies are focused on coupled inductors for interleaved DC/DC converters, which can increase the gravimetric power density and reduce the number of inductors. Power-inductor and resonant-inductor coupling in single-phase converters has been proposed by some researchers, but few studies have addressed the power-inductor and resonant-inductor coupling in multiphase converters. Therefore, a dual-phase interleaved DC/DC converter with distributed coupled inductors and passive soft-switching is proposed in this paper. The operation process, condition of soft switching, design method, and structure of the distributed coupled inductor are described. A 30 kW, 20 kHz dual interleaved insulated gate bipolar transistor prototype was built, and a power density of 5.15 kW/kg was achieved, attaining 97.18% efficiency at 30 kW. The results of Simulink and experiments reveal that the converter is effective and has the advantages of high power density and high efficiency. © 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":"943-955"},"PeriodicalIF":1.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100596","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

Cross-Source Registration of 3D Model and As-Built LiDAR Point Cloud for Electric Power Transmission Lines Model Verification 用于输电线路模型验证的三维模型交叉源配准和已建激光雷达点云

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-12 DOI: 10.1002/tee.70006

Hai Yu, Kun Qian, Fei Wang, Tianhao Zhang

{"title":"Cross-Source Registration of 3D Model and As-Built LiDAR Point Cloud for Electric Power Transmission Lines Model Verification","authors":"Hai Yu, Kun Qian, Fei Wang, Tianhao Zhang","doi":"10.1002/tee.70006","DOIUrl":"https://doi.org/10.1002/tee.70006","url":null,"abstract":"Due to the reality gap between designed models and as-built real-world scenarios, improving the accuracy of the 3D models of power transmission lines is essential when transferring them from the design department to the operation department. Point clouds obtained from the drone's remote sensing provide a credible reference for the verification of the 3D model. However, the accuracy of power pylon localization using traditional point cloud segmentation methods is limited due to the complex background of power transmission lines as well as the noise in the point cloud. In this paper, we propose a sequential pylon pose verification method based on cross-source point cloud registration. The method utilizes the registration of pairwise pylon point cloud iteratively for computing each pylon's pose relative to the first pylon. The registration algorithm based on the truncated least squares cost function ensures that our method avoids the pylon localization and orientation errors caused by inaccurate pylon segmentation. Therefore, our method only requires coarse pylon segmentation in point clouds. Experimental results validate the effectiveness of the proposed method in terms of verifying the position and elevation of electric pylons with both identical shapes and shape variations between the source and target. © 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":"1037-1044"},"PeriodicalIF":1.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256497","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

Reliability-Based Optimization Design with Interval Parameters for Reducing Yaw Braking Noise 基于区间参数的可靠性优化设计降低偏航制动噪声

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-03-10 DOI: 10.1002/tee.24277

Baoan Wang, Jianmei Wang, Ke Ning, Jian Hou, Lixia Li

{"title":"Reliability-Based Optimization Design with Interval Parameters for Reducing Yaw Braking Noise","authors":"Baoan Wang, Jianmei Wang, Ke Ning, Jian Hou, Lixia Li","doi":"10.1002/tee.24277","DOIUrl":"https://doi.org/10.1002/tee.24277","url":null,"abstract":"This study introduces a reliability-based optimization design approach, incorporating interval parameters, to address the issue of braking noise during yaw braking in wind turbines. This approach is grounded in the utilization of complex modal analysis and reliability-based optimization design with interval parameters. By employing the finite element method, complex modal analysis is employed to forecast the yaw braking noise. In addition, the adoption of reliability-based optimization design with interval parameters aims to reduce yaw braking noise and enhance system stability. In this framework, uncertain parameters, such as the friction coefficient and groove chamfers, are treated as interval variables. Notably, parameters including groove width, chamfer width, and friction coefficient are deemed significant influential factors. Objective functions are selected based on the tendency of instability and the reliability index. To construct a reliability-based optimization model with interval parameters, orthogonal experiments, response surface methods, and reliability analysis are employed. The NSGA-II Algorithm is subsequently utilized to obtain optimal values for the design parameters from the optimization model. Upon application of the proposed methodology to yaw brake design, yaw braking noise is significantly reduced, accompanied by an increase in system stability. Specifically, the tendency of instability decreases by 46.85%, while the reliability index increases by 66.07%. The findings of this research offer valuable insights for the design of wind turbine yaw brakes. © 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":"1066-1079"},"PeriodicalIF":1.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256455","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

Parameter Selection of General Signal Delay Superposition Operator Used for Real-Time Detection of Single-Phase Fundamental and Harmonics 用于单相基频和谐波实时检测的通用信号延迟叠加算子参数选择

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-02-25 DOI: 10.1002/tee.24270

Wenjun Tian, Mingxing Tian, Hongsheng Su, Zhiqiang Sun

{"title":"Parameter Selection of General Signal Delay Superposition Operator Used for Real-Time Detection of Single-Phase Fundamental and Harmonics","authors":"Wenjun Tian, Mingxing Tian, Hongsheng Su, Zhiqiang Sun","doi":"10.1002/tee.24270","DOIUrl":"https://doi.org/10.1002/tee.24270","url":null,"abstract":"To acquire quickly and accurately the real-time information of fundamental waves and specified harmonics is a prerequisite for harmonic control. Generalized delayed signal superposition operator (GDSS) is a numerical detection method for fundamental and harmonic real-time information, and its detection accuracy and real-time performance are closely related to the GDSS operator parameters. Based on the basic principles of the GDSS operator, this paper proposes a formula method and a search method for the selection of operator parameters and reveals the quantitative relationship between detection accuracy and real-time performance. According to the signal harmonic distribution characteristics, the formula method and the search method are employed respectively to obtain the GDSS operator parameters that reduce the computational complexity and improve real-time performance while meeting the requirements of detection accuracy. The simulation example shows that the proposed method is feasible and effective, and provides a further theoretical basis for the actual use of GDSS. © 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":"1089-1096"},"PeriodicalIF":1.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256560","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

Modeling Techniques for Light Distribution of White LEDs 白光led光分布的建模技术

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-02-16 DOI: 10.1002/tee.70000

Tomoaki Kashiwao, Kenji Ikeda, Masaru Tsumori, Kanji Bando

引用次数: 0

Modeling and Optimal Design of Magnetic Drive for High-Voltage Nanosecond Marx Generator 高压纳秒马克思发电机磁力传动建模与优化设计

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-02-04 DOI: 10.1002/tee.24274

Ruitian Wang, Qingqing Liu, Xin Li, Xinsheng Zhang, Beichao Yang, Xin Chen

{"title":"Modeling and Optimal Design of Magnetic Drive for High-Voltage Nanosecond Marx Generator","authors":"Ruitian Wang, Qingqing Liu, Xin Li, Xinsheng Zhang, Beichao Yang, Xin Chen","doi":"10.1002/tee.24274","DOIUrl":"https://doi.org/10.1002/tee.24274","url":null,"abstract":"All-solid-state high-voltage pulse generators are widely used in many applications, such as medical lasers and plasma generators. The rise time is a crucial parameter for the generator. This paper focuses on the modeling and optimal design of Marx pulse generator based on silicon carbide (SiC) MOSFETs and magnetic drive. First, based on the model of toroidal transformer and the equivalent circuit model of SiC MOSFETs, the electromagnetic transient model of the Marx generator with the magnetic drive is established to analyze the influence of circuit parameters on the rise time. Then, the toroidal transformer with shell-type coil structure is proposed, which has a lower leakage inductance. Furthermore, a leakage inductance model is established for the novel transformer structure, and the optimal design is carried out. Finally, the Marx generator test platform is built to validate the model and optimization method. The test results indicate that the pulse generator proposed in this paper has a pulse rise time of 20 ns under the condition of 2 kV/20 A, which represents a 33.3% increase in performance compared to the proposed Marx generator. © 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":"976-990"},"PeriodicalIF":1.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256390","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

Design and Analysis of Double-Sided U-Shaped Linear Primary Permanent Magnet Vernier Motor 双面u型直线一次永磁游标电机的设计与分析

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-29 DOI: 10.1002/tee.24269

Hualin Huang, Xiaojian Lu, Chi Zhang, Wenyuan Yan, Jie Zhang, Jie Zhou, Guilin Yang

{"title":"Design and Analysis of Double-Sided U-Shaped Linear Primary Permanent Magnet Vernier Motor","authors":"Hualin Huang, Xiaojian Lu, Chi Zhang, Wenyuan Yan, Jie Zhang, Jie Zhou, Guilin Yang","doi":"10.1002/tee.24269","DOIUrl":"https://doi.org/10.1002/tee.24269","url":null,"abstract":"This paper introduces a new double-sided U-shaped linear primary permanent magnet Vernier (U-LPPMV) motor, whose most important feature is a U-shaped Halbach structure in which the magnetization direction of five permanent magnets is concentrated at the center point, which provides more than twice the thrust density compared with existing single-sided motors. The secondary stage adopts a convex pole structure consisting of laminated silicon steel sheets, which has the advantages of a simple structure and low cost. The no-load counter-electromotive force and magnetic chain are made more sinusoidal by changing the side end structure at both ends of the primary. Next, the air-gap magnetic density of the motor is analyzed analytically by establishing the magnetomotive force potential-magnetic conductance model, and the accuracy is verified by simulation analysis. In addition, a global optimization of the motor is performed to increase the average thrust and improve the electromagnetic performance based on the optimized structural parameters. Finally, the accuracy of the theory is demonstrated by prototype design and fabrication as well as by building a test platform, and the motor is more suitable for long-stroke, high-load, and high-precision application scenarios. © 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":"1080-1088"},"PeriodicalIF":1.0,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256487","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

BPT-Planner: Continuous Behavior Perception and Robot Trajectory Planner in Pathological Collaboration Experiments 病态协作实验中的连续行为感知与机器人轨迹规划

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-01-24 DOI: 10.1002/tee.24266

Guangze Zhang, Baocai Pei, Mengyao Zhang, Yiran Yang, Chao Feng, Binpeng Wang

{"title":"BPT-Planner: Continuous Behavior Perception and Robot Trajectory Planner in Pathological Collaboration Experiments","authors":"Guangze Zhang, Baocai Pei, Mengyao Zhang, Yiran Yang, Chao Feng, Binpeng Wang","doi":"10.1002/tee.24266","DOIUrl":"https://doi.org/10.1002/tee.24266","url":null,"abstract":"Current research in human-robot collaboration has yielded promising results, enabling us to predict human motion intentions and facilitate safe robot movement in shared spaces, avoiding collisions. However, achieving truly efficient human-robot collaboration remains a complex and challenging endeavor. It entails not only imbuing robots with an understanding of human behavior but also empowering them to actively cooperate with human subjects and accomplish specific tasks. Against this backdrop, this paper introduces a comprehensive behavior perception and robot trajectory planner (BPT-Planner). Leveraging continuous image data as input, the planner utilizes a CNN-RNN network to predict human subjects' behavioral intentions, thereby gaining deeper insights. Based on these predictive outcomes and human-robot action pairings, the planner generates a motion space for the robot. Subsequently, through the application of the proximal policy optimization algorithm, the planner dynamically optimizes the robot's action strategies to generate optimal motion trajectories. This optimization process takes into full consideration the behavior of human subjects, ensuring seamless integration of robot movement with human actions. To validate the performance of the BPT-Planner, we conducted offline training and real-time online validation in a pathological experiment scenario. Additionally, we conducted comparative experiments using datasets from other scenarios to further corroborate the planner's efficacy. Through the endeavors of this study, we not only showcase the exceptional performance of the BPT-Planner across diverse scenarios but also affirm its applicability and effectiveness in various application environments. © 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":"1025-1036"},"PeriodicalIF":1.0,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256599","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