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Effects of Pulse Width and Electrical Energy of Low‐Voltage Nanosecond Pulsed Electric Fields on Mitochondria in Cancer Cells IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-15 Yuto Ninagawa, Ren Sugiura, Eiko Kato, Keiji Wada, Ippei Yagi, Satoshi Uchida
Nanosecond pulsed electric fields (nsPEFs) have recently shown promise as a cancer therapy. Although nsPEF‐induced apoptotic responses have been observed, the stress on individual cell components has not been quantified. Therefore, the authors built a cell equivalent circuit, including mitochondria, to quantitatively calculate the voltage, electric field, and electrical energy applied to the cell components
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Research on the Effects of Voltage Sags and Harmonics on the Output Characteristics of Switching Power Supply IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-15 Yuzheng Tang, Shuming Liu, Qionglin Li, Bo Zhang, Yi Wang, Futao Xu, Yonghai Xu
Switching power supply is widely used in industrial equipment, household appliances, and other fields due to the advantages of high integration and lightweight. Voltage sags can seriously affect the output voltage of switching power supply and the working condition of its power supply equipment; at the same time, the working scenarios of power equipment using switching power supply often have different
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A Novel Asymmetric Interior Permanent Magnet Machine with Auxiliary Flux Barriers IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-11 Shihao Li, Chong Di, Xiaohua Bao
A novel asymmetric interior permanent magnet (AIPM) machine is proposed in this paper. The machine's rotor consists of asymmetric poles and auxiliary flux barriers. The torque ripple of the machine is weakened by the asymmetric design of the left and right sides of the magnetic poles. The magnetic-field-shifting (MFS) effect improves the electromagnetic torque after adding the auxiliary flux barrier
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A Decentralized Voltage Regulation Scheme Using Improved Volt‐Var Function of PV Smart Inverter IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-12 Shanghong Xie, Akihisa Kaneko, Yasuhiro Hayashi
With the growing distributed PV installation rate in distribution systems, voltage regulation difficulties such as local voltage violations and fluctuations have become common. To solve the voltage regulation problems, the local voltage regulation method using volt‐var (VV) function is effective for its high regulation speed, high accuracy, and flexibility. However, there are still hurdles on real
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An Optimized Grid‐Forming Control Strategy for the Flexible Interconnection System in Distribution Transformer Areas IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-10 Gaole Yu, Jianyuan Xu, Zheng Yan, Wenlong Ren
The flexible interconnection system (FIS) in distribution transformer areas can improve the local consumption capacity of high penetration rate distributed photovoltaics and solve the problem of the high loading rate of distribution transformers. This paper presents an optimized grid‐forming control strategy for the FIS in distribution transformer areas. First, the DC side impedance small signal model
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Fundamental Study on Recovery of Spilled Oil by Magnetic Pickering Emulsification IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-05 Kota Saito, Yoko Akiyama, Yuichiro Manabe, Fuminobu Sato
Heavy oil spills from stranded oil tankers are a global problem. The recovery of spilled oil must have a low environmental impact and must be capable of processing large quantities at high speeds. In this study, we investigated the application of magnetic separation for the recovery of spilled oil. Pickering emulsions were formed by heavy oil and magnetite, and recovery was carried out using a drum‐type
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Distributed Energy Resource Integration for Carbon Neutral Power Systems: Market-Based Approaches to Ancillary Services and Microgrid Operation IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-01 Hiroshi Asano, Hideo Ishii, Hirotaka Takano
Electricity, as a sustainable energy carrier, plays a central role in the transition scenarios for carbon neutralization of energy systems. Expanding the potential of electricity requires intelligent integration of electricity infrastructures and electricity markets with distributed energy resources (DERs) including roof-top solar photovoltaics (PVs), controllable loads, and storage batteries. This
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Grid Forming Converter Control System Synthesis: A Static Output Feedback Approach IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-01 Sharara Rehimi, Hassan Bevrani, Chiyori T. Urabe, Takeyoshi Kato
This paper proposes an effective control synthesis strategy to stabilize grid forming converters in the presence of disturbances. The conventional control system for a grid forming converter is based on paralleled and cascaded proportional‐integral (PI) controllers, which are widely used in the industry due to their simplicity and reliability. However, the sequential adjustment of PI gains in different
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Reliability Optimization of Traffic Routing in Train Communication Networks Based on Faulty Link Diagnosis IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-04-01 Ziyang Ren, Deqiang He, Qi Liu, Sheng Shan, Qilin Chen
With the increasing adoption of industrial Ethernet in train communication network (TCN), the limitations of insufficient reliability and incompatibility between different Ethernet technologies have become increasingly apparent. To address these challenges, time‐sensitive networking (TSN) has emerged as a solution, enabling multi‐network convergence and enhancing data transmission determinism and reliability
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On-Chip Differentiation of Hepatic Cords with Radial Flow IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-31 Alan Raj Jeffrey Rajendran, Sakina Bensalem, Antonietta Messina, Nassima Benzoubir, Rasta Ghasemi, Jean-Charles Duclos-Vallée, Bruno Le Pioufle
Due to a more physiological reproduction of the in vivo situation, liver-on-a-chip devices in recent studies have shown higher sensitivity and accuracy for hepatotoxicity testing compared to traditional in vitro liver models. In this context, this work presents an original microfluidic device mimicking 3D hepatic cords organized radially, like in the liver lobule. Ten cell-culture chambers seeded at
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Automatic ROI Selection with a Reliability Evaluation Method for Cirrhosis Detection Using Ultrasound Images IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-30 Kazuma Nakata, Yusuke Fujita, Yoshihiro Mitani, Yoshihiko Hamamoto, Makoto Segawa, Shuji Terai, Isao Sakaida
Cirrhosis is a liver disease resulting from abnormal continuation of fibrosis, and ultrasound imaging is widely used for cirrhosis diagnosis because of its non‐invasiveness. However, due to unclear appearances of cirrhosis on ultrasound images, diagnoses are difficult and individual results possibly differ depending on the physician's experience. Recently, computer‐aided diagnostic systems using image
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Research Progress of Snowmelt Promotion and Snowmelt Monitoring Technology on Photovoltaic Modules IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-30 Yongcan Zhu, Kefeng Li, Wu Gao, Jiawen Wang, Haonan Xiong, Shusen Yang, Xinbo Huang
The accumulation of snow is one of the essential reasons for the significant decrease in the power generation efficiency of PV stations in winter. For this reason, this paper firstly provides a detailed review of the current research into the physical processes and shedding reasons for the natural melting of snow on PV module surfaces. Then, several common techniques to promote snow and ice melting
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Voltage and Current Characteristics of Schottky Barrier Diodes and Rectifier Diodes Exposed to Standard Lightning Impulse Voltage IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-26 Tin Zar Win Ko, Ryo Torihara, Tatsuya Sakoda, Noriyuki Hayashi
Lightning surges are one of the major reasons of bypass diode (BPD) failure in photovoltaic modules. In this study, standard lightning impulse voltages (SLIVs) were directly applied to Schottky barrier diodes (SKB diodes) and rectifier diodes (PNJ diodes) with different electrical specifications. The critical voltages Vc of SLIV at which the diodes were damaged and the temporal variations of diode
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Theoretical Impedance Calculation Method for Air-Core Coils IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-25 Fumiaki Matsuura, Yuki Futatsugi, Mitsuhide Sato, Shigemi Enoki, Tsutomu Mizuno
Coils are designed to have impedance characteristics appropriate for any use of the sensors, analog circuits and so on. The impedance characteristics of a coil depends on the coil shape and used materials, and these factors make coil design difficult. Therefore, we proposed a convenient method to obtain the impedance characteristics of a coil by theoretical calculation of the inductance, resistance
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Strongly Coupled Circuit-Magnetic-Structural Effect on Winding Vibration Process of Power Transformer IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-25 Mingkai Jin, Zhiyuan Sha, Yi Zhao, Weijiang Chen, Qiaogen Zhang, Tao Wen
Short-circuit forces, which result in violent vibration of power transformer windings, are induced by the interaction between the short-circuit currents and the leakage magnetic induction. During vibration, the rearrangements of disks affect the magnetic flux distribution, which leads to time-varying equivalent reactance and further changes of currents and forces. When a short-circuit accident occurs
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Study on the Coil Position Adaptive Adjustment Control Scheme of Wireless Power Transfer System IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-28 Pengfei Gao, Peiyi Wang, Xiaoying Tian, Xiaoyan Huang
Wireless power transfer (WPT) technology can completely isolate the equipment from the power supply, and has been widely used. However, the transmission efficiency of WPT system is optimal only as the transmitting coil was completely aligned with the receiving coil. But in practical applications, the mobile devices are all dynamic system, and perfectly alignment of the coils is a very demanding condition
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Domain Adaptation Curriculum Learning for Scene Text Detection in Inclement Weather Conditions IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-28 Yangxin Liu, Gang Zhou, Jiakun Tian, En Deng, Meng Lin, Zhenhong Jia
Scene text detection has been widely studied on haze‐free images with reliable ground truth annotation. However, detecting scene text in inclement weather conditions remains a major challenge due to the severe domain distribution mismatch problem. This paper introduces a domain adaptation curriculum learning method to address this problem. The scene text detector is self‐trained in an easy‐to‐hard
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A Simple Strategy for Bidding to Balancing Market of Photovoltaic Power IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-28 Tetsuki Taniguchi, Jindan Cui, Xue Fang, Takashi Oozeki, Yuzuru Ueda
Assuming the bidding on balancing market of photovoltaic (PV) system, critical issues are adequate determination of amount of bid and decision making on whether to make a bid or not. This study proposes a rule‐based scheme handling this problem regarding the trade‐off between opportunity loss and penalty event where the actually generated power becomes less than the bid. The amount of bid is adjusted
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Openable Double-Microtube Structure Driven by Pneumatic Balloon Actuator Arrays for Tubular Organ-on-a-Chip IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-27 Shiho Shimizu, Keiichiro Nishizaki, Satoshi Konishi
Microfluidic platforms have revolutionized research in biomedical engineering, enabling efficient and controlled experimentation. Here, we present a novel microfluidic device, the double-microtube, which offers parallel flow of different fluids. The device is fabricated by transforming a flat structure on a substrate using pneumatic balloon actuator arrays. The inner and outer tubes of the device can
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Techno‐Economic Modeling of Diverse Renewable Energy Sources Integration: Achieving Net‐Zero CO2 Emissions IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-26 Mir Sayed Shah Danish, Soichiro Ueda, Masahiro Furukakoi, Hasan Dinçer, Zahra Shirmohammadi, Mahdi Khosravy, Alexey Mikhaylov, Tomonobu Senjyu
Integrating renewable energy sources (RES) into power systems presents significant challenges due to their diverse nature and operational characteristics. This study addresses these challenges through an innovative strategy that simulates solar and wind farms, storage systems, fuel cell generators of hydrogen energy (via electrolysis), and hydrogen storage, all governed by an intelligent controller
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Model Predictive Current Control of Permanent Magnet Synchronous Motor Based on Sliding‐Mode Disturbance Observer IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-26 Shuhang Ma, Jinghong Zhao, Lv Yang, Xiangyu Luo, Guangpu Ran
A nonlinear multivariable highly coupled system that is susceptible to both internal and external perturbations is the permanent magnet synchronous motor. A new reaching law‐based control approach that combines a sliding‐mode disturbance observer and an enhanced two‐vector model predictive current control is suggested in order to enhance the dynamic performance of the permanent magnet synchronous motor
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Control of Electric Wheelchair by Brain‐Computer Interface Using Mixed Reality and Virtual Sound Source IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-20 Fumina Mori, Masato Sugino, Yunshan Huang, Kiyoshi Kotani, Yasuhiko Jimbo
A brain‐computer interface for operating an electric wheelchair (wheelchair BCI) has been studied to support independent living for physically disabled patients. The current wheelchair BCI systems are facing the problem that the wheelchair cannot be moved or rotated to an arbitrary place or direction in a single measurement. To solve this problem, we developed a BCI that uses audiovisual stimuli based
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Texturing to Dramatically Increase Thermal Deformation of Bilayer Film and Application to Actuator IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-20 Daisuke Yamaguchi, Yuki Takahara, Shuichi Wakimoto, Takefumi Kanda
The effect of adding texture to increase the deformation of a bilayer actuator by a factor of over 100 was demonstrated. A bilayer actuator is driven by the difference in thermal deformation. Therefore, two films or plates with a large difference in thermal expansion coefficient are required. The newly developed textured film actuator (TFA) obtained large deformation even in a case involving a combination
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Flow Behavior Characterization of DNA Molecules in Passive Nanofluidic Devices† IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-16 Franziska M. Esmek, Phil Grzybeck, Rukan Nasri, Sadhana Tiwari, Irene Fernandez-Cuesta
This work aims to develop a method for analyzing the dynamic flow of single DNA molecules through nanochannels in fluidic chip which work passively. For this purpose, a two-laser system was used, which is coupled into a fluorescence microscope and can detect labeled DNA molecules using a single photon counter for signal read-out in real-time. The two laser spots are focused at different points of the
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Multi-Task Residential Short-Term Load Prediction Based on Contrastive Learning IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-15 Wuqing Zhang, Jianbin Li, Sixing Wu, Yiguo Guo
Load forecasting is crucial for the operation and planning of electricity generation, transmission, and distribution. In the context of short-term electricity load prediction for residential users, single-task learning methods fail to consider the relationship among multiple residential users and have limited feature extraction capabilities for residential load data. It is challenging to obtain sufficient
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Fabrication of High-Density Micro-Bump Arrays for 3D Integration of MEMS and CMOS IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-15 Yunfan Shi, Zilin Wang, Rutian Huang, Jin Kang, Kai Zheng, Weihai Bu, Zheyao Wang
Cu-Sn transient-liquid-phase bonding has a limit in achieving small diameter/high-density bumps due to the extrusion of the melted Sn layer during bonding. This paper report a new method that can fabricate small diameter Cu-Sn bumps with 5 μm diameter and 25 μm pitch based on a new thermal reflow and pre-bonding method that enables solid-state Cu-Sn reaction for avoiding Sn extrusion. Using the new
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Bilayer Self-Folding Method with High Folding Force and Angle by Suppressing Delamination of Shrink Layer IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-15 Yusuke Sato, Takashi Sato, Eiji Iwase
Heat-shrinkable films commonly serve as active materials for self-folding owing to their capability to fold all hinges upon heating. For origami-based electronic devices, the self-folding of the metal layer is necessary. Nevertheless, the self-folding angle is low owing to the high bending stiffness of metal layers and the low adhesion of heat-shrinkable films. Here, we introduce a bilayer self-folding
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Self-Stretchable Christmas-Tree-Shaped Ultraflexible Neural Probes† IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-14 Ye Tian, Cunkai Zhou, Kuikui Zhang, Huiran Yang, Zhaohan Chen, Yifei Ye, Zhitao Zhou, Xiaolin Wei, Tiger H. Tao, Liuyang Sun
This paper devised a novel Christmas-tree structure for flexible neural probes, which features recording sites on side-branches that can be folded along the shank of the probe by temporary encapsulation before implantation. This design reduces the size of the implant and minimizes the surgical footprint. Upon implantation, the temporary encapsulation dissolves in vivo, leading to self-stretching of
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pvFed: Personalized Vertical Federated learning for Client‐Specific Tasks IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-12 Akihito Nishikawa, Tomu Yanabe, Yuiko Sakuma, Yuma Okuda, Hiroaki Nishi
Federated Learning (FL) is a distributed machine learning paradigm that enables multiple data holders to collaborate on building machine learning models while preserving the privacy of their data. FL can be categorized as horizontal or vertical, depending on the distribution characteristics of the data. Specifically, horizontal FL uses data partitioned in the sample space, whereas vertical FL uses
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HAPOVER: A Haptic Pronunciation Improver Device IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-09 Rıza Ilhan, Kadir Kaçanoğlu
This research article describes the HAPOVER (a haptic pronunciation improver device), which was produced to help second language learners' pronunciation skills as part of their foreign language learning process. The device comprises eight independent vibration motors connected to the fingers other than the thumb. The developed tactile feedback device was utilized to enhance pronunciation via speech
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Enhancing Incipient Fault Detection for Interface Converter Sensors through Signal Correlation Analysis IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-09 Chujia Guo, Qingqing Yang
Incipient faults in interface converters can potentially lead to catastrophic failures. Detection of incipient faults contributes to proactive fault management and predictive maintenance, which effectively improves system reliability. In this paper, a detection method in correlation space is proposed to address this problem, which is based on the inherent feature of correlation changes when a fault
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FDTD Analysis of Electric Field and Step Voltage in a Clay‐Wall House Struck by Lightning IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-08 Ken Uetsuhara, Yoshihiro Baba, Takeshi Kudo
The density of lightning flashes is quite high in Rwanda and its neighboring countries in Africa. In rural areas of these countries, there are still many clay‐wall houses. Sometimes people in clay‐wall houses are fatally injured by direct lightning strikes to the houses. In this paper, the electric field in a clay‐wall house and the step voltage on the floor, associated with a direct lightning strike
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All Ceramic Ion Sensor Using Dielectric BaTiO3 Transducer IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-08 Soichiro Suzuki, Satoko Takase, Youichi Shimizu
An all‐solid‐state impedance metric hydrogen‐phosphate ion sensor device has been tried to fabricate using BaTiO3 as a transducer and spinel‐type oxide receptor. AC impedance measurement was carried out using flow‐cell system with boric‐acid buffer solution with hydrogen‐phosphate ion The Co2RhO4/BaTiO3 sensor device was found to show impedance responses to hydrogen‐phosphate ion at 5 × 10−4 M and
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Equivalent Analytical Model of Magnetic Field in Parallel Magnetic Circuit Axial Flux Permanent Magnet Machines IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-07 Zhao Xiaoxiao, Wang Xiaoyuan, Gao Peng, Li Tianyuan
The axial flux permanent magnet (AFPM) machines with the parallel magnetic circuit (PMC) rotor can effectively improve its torque density. The PMC rotor consists of two sub‐rotors, radial Halbach array permanent magnet (PM) and tangential PM. The magnetic fields generated by two sub‐rotors are not in the same 2‐D analytical planes. In this paper, an equivalent analytical model of PMC‐AFPM machines
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Class-Relation Reasoning with Knowledge-Transfer for Few-Shot Object Detection IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-04 Xin Feng, Zhixian Zhang, Junjie Wang, Siping Wang, Xiaoning Jiao
Few-Shot Object Detection (FSOD) task involves accurately identifying target object classes using only a small set of labeled samples. Most of the current FSOD tasks independently predict class prototype features without considering class relationships and only rely on visual information. To address these challenges, we propose a novel Class-relational Reasoning Method with Knowledge-transfer (CRK-Net)
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Plasma-Based Additive Manufacturing Method for MEMS Using APSLD (Atmospheric Pressure Sputtering Layer Deposition) Technology† IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-04 J. Bickel, Roland Gesche, Joachim Scherer, Reinhold Kovacs, Xiaodong Hu, Ha Duong Ngo
This paper reports a novel additive manufacturing technique for MEMS devices using newly developed APSLD (atmospheric pressure sputtering layer deposition) technology. It uses a microplasma at atmospheric pressure to deposit microstructures with defined properties, such as conducting or isolating directly at different surfaces additively without complex and time-consuming manufacturing routes like
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Automated Correction of Eye‐Tracking Data for Detecting Difficult‐to‐Read Characters in Japanese Text IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-04 Yudai Ito, Chikako Ishizawa, Yoichi Kageyama
This paper proposes a new eye‐tracking data correction method for the development of an automatic detection system for difficult‐to‐read characters in Japanese text. The proposed method, which adjusts the x‐axis of the eye, was compared with existing methods that adjust only the y‐axis. Data correction was performed for each method, and the detection accuracy of difficult‐to‐read Japanese characters
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Investigation of Calibration Methodology Using Mouth Airflow for Wearable Sensor Toward Quantitative Respiration Monitoring IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-03 Kenta Horie, Muhammad Salman Al Farisi, Yoshihiro Hasegawa, Miyoko Matsushima, Tsutomu Kawabe, Mitsuhiro Shikida
Present wearable sensors are able to measure the frequency of vital signs such as respiration rate and heartbeat rate, but unable to measure those quantitatively, e.g. respiratory volume and heartbeat strength. Meanwhile, airflow at mouth contains both the respiration and the heartbeat quantitative signals. In this study, we propose a calibration method for a wearable vital sensor attached on the chest
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Fabrication and Evaluation of MUT-Type Acoustic Metamaterial for Impedance Matching IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-03 Hiroki Tanaka, Shuntaro Machida, Mitsuhiko Nanri
A micromachined ultrasonic transducer (MUT)-type acoustic metamaterial that achieved acoustic impedance matching between materials with different acoustic impedances was successfully fabricated. The fabricated device consisted of a thin membrane that vibrated when acoustic waves impinged on the surface of the device, along with tapered trench structures located beneath the membrane. The device fabrication
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Research on Detection and Defense Methods for Software‐Defined Network Architecture after Hybrid Attack by Distributed Denial of Service IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-03-01 Hongfei Xiao, Tao Xiang, Shiqi Tang
The architecture of software‐defined network (SDN)enhances the openness of the network by separating the control and forwarding functions, but the centralized SDN control form is susceptible to distributed denial of service (DDoS) attacks. In this paper, entropy value and back‐propagation neural network (BPNN) were applied to the DDoS attack detection of SDN, and then the two detection algorithms were
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QoS-Based Bi-Level Demand Response for Data Center to Facilitate Renewable Energy Integration IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-27 Bin Li, Wangzhang Cao, Tianyue Tang, Bing Qi, Jianli Zhao, Chuan Liu
Scheduling workload is a demand response strategy for data centers to reshape electricity usage, which provides an opportunity for them to utilize renewable energy. Enhancing the flexibility of workload scheduling would promote the data center to integrate renewable energy. Considering that the improvement of flexibility in workload scheduling is tightly related to the Quality of Service (QoS) required
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Colorimetric Readout Based Photoionization Detector for Gas Chromatographs IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-27 Jingqin Mao, Longze Liu, Yahya Atwa, Junming Hou, Hamza Shakeel
This paper presents a new scheme for readout of a photoionization detector (PID) that utilizes the ionization luminescence of target gases in helium plasma to generate an output signal. Our signal readout method is based on processing the recorded video and correlating the light peak intensity with the sample injection time and concentration. We successfully demonstrated the feasibility of a colorimetric
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Improved Sequential Model Predictive Control of Cascaded H‐Bridge Multilevel Converter IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-26 Risheng Qin, Hua Kuang, He Jiang, Hui Yu, Hong Li, Zhuan Li
The cascaded H‐bridge (CHB) converter can achieve rich functions, such as active rectification, active power filtering, distributed energy storage, etc. The control of the CHB converter is a multiobjective optimization problem. Finite control set model predictive control (FCS‐MPC) is an effective method developed in recent years to solve this problem. However, because of the large amount of calculation
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A Proposal of a Novel Automatic Checkout System Reducing Additional Item Information Relearning Cost IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-25 Daisuke Hanamitsu, Kimihiro Mizutani
Recently, a retail industry has trended to adopt automatic checkout systems for enhancing customer sales. Typically, an automatic checkout system employs an object detection technique (i.e., image processing) based on a commonly used deep learning model (e.g., Faster R-CNN and YOLO) that has been trained for items. Therefore, it takes much time to relearn the model whenever an item is added to the
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Theoretical and Experimental Analysis on Liquid Metal Droplets Fiber Fabrication Via co-Flow Microfluidic System IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-25 Xu Gao, Wei Wang
In this work, liquid metal was introduced into a simple co-flow microfluidic system, and we successfully fabricated the liquid metal droplets fiber by solidifying the continuous phase. The law of liquid metal droplet generation was discussed by theoretical analysis, simulations and experiment results, which is a critical guidance for fabricating liquid metal droplets fibers with various parameters
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Combining Fourier Fractional GM(1,1|sin) Model with Rat Swarm Optimizer for Employment Rate Prediction IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-23 Lulu Cai, Dongge Lei, Fei Wu, Aihua Guo
Accurate prediction of employment rate of graduated students can greatly help education authorities to make informed decisions as well as for universities to adjust their teaching plans. Unfortunately, prediction of the employment rate of graduated students is still a difficult problem because the historical employment rate data exhibits fluctuations. In this paper, a new method is proposed for employment
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Error Analysis of XY Model Equivalent Circuit Based on Finite Element Simulation IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-22 Yalong Tu, Qingchuan Xu, Bo Jiang, Shengkang Wang, Fuchang Lin, Yangze Lu, Yunhao Qiu
The XY model is a simplified insulation model for transformers that aims to connect the frequency spectrum of major insulation, insulation paper, and oil. It enables the calculation of the paper's frequency spectrum, facilitating a quantitative evaluation of the transformer's insulation status. Given the scarcity of research addressing the accuracy of the XY model and its corresponding equivalent circuit
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Security Enhancement of mmWave MIMO Wireless Communication System Using Adversarial Training IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-22 Mehak Saini, Surender K. Grewal
Millimeter wave MIMO wireless communication systems are deployed in 5G and next‐generation networks. The effectiveness of deep learning models for improving the performance of these systems has been proven in the literature. However, several deep learning models are vulnerable to security threats, such as adversarial attacks. Therefore, for the deployment of these systems, it is essential to make them
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Pitot Tube Sensor Probe System for Simultaneous Airflow and Pressure Measurement of Expiration Inside Pulmonary Airway IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-21 Aoi Miyawaki, Muhammad Salman Al Farisi, Yoshihiro Hasegawa, Miyoko Matsushima, Tsutomu Kawabe, Mitsuhiro Shikida
Respiratory diseases, including the cronic obstructive pulmonary disease (COPD) are among the leading causes of death worldwide. To date, there is no physical examination procedure that can quantify important parameters within a specific lesion area inside the lung. In this study, we propose a novel sensor probe system consisting of a basket forceps and 2 pressure sensors to simultaneously measure
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Evaluation of Voltage Unbalance Definitions for Voltage Control in Distribution Systems with Photovoltaic Penetration IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-21 Akito Nakadomari, Narayanan Krishnan, Masahiro Furukakoi, Ashraf Mohamed Hemeida, Tomonobu Senjyu
This paper examines the impact of different voltage unbalance definitions on voltage control in unbalanced distribution systems. Traditional voltage regulation methods for unbalanced systems rely on a single voltage unbalance definition with inconsistent adoptions. In such a situation, voltage control performance can vary between definitions, and improper choice leads to control failures. In this study
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Recognition of Fiber Optic Vibration Signals Based on Laplace Wavelet Transform and Deep Learning IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-19 Jinshui Qi, Jiaqing Mo, Yasen Niu, Yiteng Cui
Convolutional neural networks possess the capability of feature learning and nonlinear mapping, which has significant advantages in classifying and recognizing optical fiber vibration signals. In order to further enhance the recognition rate of vibration signals, this paper combines wavelet transform with convolutional neural networks and designs a convolutional layer based on parameterized wavelets
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Three-Phase Unbalance Reduction and Energy Optimization for Active Distribution Network Using Flexible Multi-State Switch IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-20 Yixuan Jin, Moduo Yu, Nengling Tai, Ruochen Duan, Chao Lu
Active distribution network is integrated with a large number of renewable energy sources and flexible loads such as electric vehicles(EVs). The unstable output of distributed generation and the random access to different phases cause three phase unbalance in the distribution network, which increase the energy loss and carbon emissions. Three phase unbalance reduction requires high real-time dispatch
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A Two‐Stage Method for Order Selection in Model‐Free Predictive Control IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-19 Pratvittaya Jiravit, Shigeru Yamamoto
One of the primary advantages of model‐free predictive control over conventional methods is that it does not use any mathematical models and relies only utilizes measured input/output data from the storage. The capability of model‐free predictive control has been already demonstrated in nonlinear systems using linear and polynomial regression for data storage. However, identifying the appropriate order
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Hybrid 3D Printing of Molten Metal Microdroplets and Polymers for Prototyping of Printed Circuit Boards Featuring Interdigitated 3D Capacitors IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-17 Zeba Khan, Dheepesh Gururajan, Peter Koltay, Sabrina Kartmann, Roland Zengerle, Zhe Shu
This paper presents layer-by-layer additive manufacturing (AM) of molten metal microdroplets and dielectric materials to fabricate multilayer hybrid circuit boards featuring interdigitated 3D capacitors. The printed metal lines have a low resistance of 5 mΩ/mm, 12 times lower than state-of-the-art conductive inks. Exploiting the advantages of Sn-based oxide as an ideal candidate for Electrical Energy
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Dialogue System for Casual and Continuous Word Learning IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-14 Yosuke Seki
Facilitating causal and continuous learning in individuals with low motivation presents a formidable challenge owing to the diverse methods and systems available for vocabulary acquisition. Therefore, this study developed a non-task-oriented dialogue system to facilitate casual and continuous word learning. Specifically, dialogue systems capable of processing text-based inputs, encompassing words registered
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Improved Compound Vibration Suppression Control for Magnetic Levitation Motor IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-13 Dan Zhang, Baonan Wang
The magnetic levitation motor is high efficiency, energy saving and environmental protection, which integrates magnetic levitation bearing and permanent magnet motor into the traditional motor. Two key technologies of its stable operation are vibration suppression control of magnetic bearing and speed sensorless chattering suppression control of motor. The innovative research has been studied from
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Design of Motion Attitude Measurement System and Correction Method in Semi-Airborne Frequency Domain Electromagnetic Detection IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-12 Changsheng Liu, Yang Su, Chunfeng Zhang, Shuxu Liu
In the semi-airborne frequency domain electromagnetic detection, strong noise will be generated due to the attitude change of the receiving coil sensor. However, the existing attitude measurement system cannot be directly used in the semi-airborne frequency domain electromagnetic system because of the requirement on the volume and accuracy of the instrument. In order to reduce the effect of attitude
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A Dendritic Architecture-Based Deep Learning for Tumor Detection IEEJ Trans. Electr. Electron. Eng. (IF 1.0) Pub Date : 2024-02-12 Shibo Dong, Zhipeng Liu, Haotian Li, Zhenyu Lei, Shangce Gao
Brain tumor detection typically involves classifying various tumor types. Traditional classifiers, based on the McCulloch-Pitts model, have faced criticism due to their oversimplified structure and limited capabilities in detecting brain tumor images with complex features. In this study, we propose a multiclassification model inspired by dendritic architectures in neurons, which leverages synaptic