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作者： Sakai, Yuta Tan, Vincent Y. F. Department of Electronics and Computer Science Graduate School of Engineering University of Hyogo Himeji671-2280 Japan Department of Electrical and Computer Engineering Department of Mathematics National University of Singapore Singapore119077 Singapore

This study considers the unconditional smooth Rényi entropy proposed by Renner and Wolf [ASIACRYPT, 2005], the smooth conditional Rényi entropy proposed by Kuzuoka [IEEE Trans. Inf. Th., 66(3), 1674-1690, 2020], and a novel quantity which we term the conditional smooth-∗ entropy. The latter two quantities can be specialized to the first in the absence of side-information. We explore the operational roles of these smooth Rényi entropies by establishing one-shot coding theorems for several information-theoretic problems, including Campbell's source coding problem, the Arikan-Massey guessing problem, and the Bunte-Lapidoth task encoding problem. We consider these problems in cases where the errors are non-vanishing and for each problem, we consider two error formalisms: the average and maximum error criteria, where the averaging and maximization are taken with respect to the side-information. Using the one-shot coding theorems, we conclude that Kuzuoka's smooth conditional Rényi entropy and the conditional smooth-∗ entropy are the solutions to the problems involving the average and maximum error criteria, respectively. Furthermore, we examine asymptotic expansions of these entropies when the underlying source with its side-information is stationary and memoryless. Applying our asymptotic expansions to the one-shot coding theorems, we derive various fundamental limits for these problems. We show that, under non-degenerate settings, the first-order fundamental limits differ under the average and maximum error criteria. This is in contrast to a different but related setting considered by the present authors [IEEE Trans. Inf. Th., 66(12), 7565-7587, 2020], for variable-length conditional source coding allowing errors, in which the first-order terms are identical but the second-order terms are different under these error criteria. © 1963-2012 IEEE.

关键词： Signal encoding

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Effect of Laying Parameters and Non-sinusoidal Loading Condition of High-Voltage Underground Cables on electrical Performance by Finite Element Method

Effect of Laying Parameters and Non-sinusoidal Loading Condi...

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Power Tech Conference

作者： Yunus Berat Demirol Özcan Kalenderli Graduate School of Electrical Engineering Program Istanbul Technical University Istanbul Turkey Faculty of Electrical and Electronics Engineering Istanbul Technical University Istanbul Turkey

Depending on the bonding type, screen currents and screen voltages of high-voltage underground cables have critical importance in the distribution system. These parameters directly affecting energy efficiency and operational safety need to be calculated and evaluated during the system design. Especially in electric vehicle charging stations, energy storage facilities, solar power plants, oil and gas production facilities, and data centers, these parameters become even more critical because of operating with non-sinusoidal loading conditions. It is seen that studies evaluating the electrical performances of high-voltage cables depending on their harmonic loading conditions and ge-ometrical placement characteristics are limited in the literature. This study investigates the screen voltage, screen current, and loss performance of a high-voltage underground cable system consisting of two parallel circuits in different bonding types and layouts depending on the distance between the cables and the non-sinusoidal loading conditions. For this purpose, the cable system was modeled and analyzed in FEM software. In addition, the calculations performed with the finite element method were also verified by the IEC 60287-1-3 method. The study evaluated the performance of the high-voltage underground cable system for a distribution network and emphasized that these analyses should be carried out during the system design.

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A review of hybrid EEG-based multimodal human–computer interfaces using deep learning: applications, advances, and challenges

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Biomedical engineering Letters 2025年 1-32页

作者： Lee, Hyung-Tak Shim, Miseon Liu, Xianghong Cheon, Hye-Ran Kim, Sang-Gyu Han, Chang-Hee Hwang, Han-Jeong Department of Electronics and Information Engineering Korea University 2511 Sejong-ro Jochiwon-eup Sejong-si30019 Korea Republic of Department of Artificial Intelligence Tech University of Korea Siheung Korea Republic of Department of Computer Information Korea University 2511 Sejong-ro Jochiwon-eup Sejong-si30019 Korea Republic of Interdisciplinary Graduate Program for Artificial Intelligence Smart Convergence Technology Korea University Sejong Korea Republic of

Human–computer interaction (HCI) focuses on designing efficient and intuitive interactions between humans and computer systems. Recent advancements have utilized multimodal approaches, such as electroencephalography (EEG)-based systems combined with other biosignals, along with deep learning to enhance performance and reliability. However, no systematic review has consolidated findings on EEG-based multimodal HCI systems. This review examined 124 studies published from 2016 to 2024, retrieved from the Web of Science database, focusing on hybrid EEG-based multimodal HCI systems employing deep learning. The keywords used for evaluation were as follows: ‘Deep Learning’ AND ‘EEG’ AND (‘fNIRS’ OR ‘NIRS’ OR ‘MEG’ OR ‘fMRI’ OR ‘EOG’ OR ‘EMG’ OR ‘ECG’ OR ‘PPG’ OR ‘GSR’). Main topics explored are: (1) types of biosignals used with EEG, (2) neural network architectures, (3) fusion strategies, (4) system performance, and (5) target applications. Frequently paired signals, such as EOG, EMG, and fNIRS, effectively complement EEG by addressing its limitations. Convolutional neural networks are extensively employed for spatio-temporal-spectral feature extraction, with early and intermediate fusion strategies being the most commonly used. Applications, such as sleep stage classification, emotion recognition, and mental state decoding, have shown notable performance improvements. Despite these advancements, challenges remain, including the lack of real-time online systems, difficulties in signal synchronization, limited data availability, and insufficient explainable AI (XAI) methods to interpret signal interactions. Emerging solutions, such as portable systems, lightweight deep learning models, and data augmentation techniques, offer promising pathways to address these issues. This review highlights the potential of EEG-based multimodal HCI systems and emphasizes the need for advancements in real-time interaction, fusion algorithms, and XAI to enhance their adaptability, interpreta

关键词： Convolutional neural networks

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Microwave-Based Complementary Split-Ring Resonator for the Detection of Variations in Aqueous Media

Microwave-Based Complementary Split-Ring Resonator for the D...

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Microelectronics Technology and Devices (SBMicro)

作者： Reinaldo Velásquez Diego Tami Gilberto Medeiros-Ribeiro Cássio G. Rego Jhonattan C. Ramirez Graduate Program in Electrical Engineering UFMG Brazil Institute of Technological Sciences UNIFEI Brazil Department of Computer Science UFMG Brazil Department of Electronics Engineering UFMG Brazil

In this paper, we demonstrated a highly sensitive microwave-based resonator sensor capable of detecting variations in an aqueous medium of up to 0.94 mg/dL. In the presented device, the intrinsic resonant response (resonant amplitude, resonant frequency, and quality factor) is capacitively perturbed in reaction to the sample presence. To achieve higher sensitivity, the sample under testing generally is placed on the resonator surface, where the electric field is highly concentrated at the operating frequency. Thus, demonstrating excellent results in terms of sensitivity and reproducibility.

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Quality Improvements in the electrical Design of Typical DC-DC Electronic Power Converter for High-Voltage Applications 8

Quality Improvements in the Electrical Design of Typical DC-...

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8th International Conference on engineering and Emerging Technologies, ICEET 2022

作者： Recto, King Harold A. Escoto, Miguel T. Hernandez, Noel B. Ateneo de Manila University Department of Electronics Computer and Communications Engineering Quezon City Philippines Electrical and Electronics Engineering Institute University of the Philippines Diliman Quezon City Philippines Centro Escolar University Post-doctoral Program in Quality Management of the Graduate School Manila Philippines

ISBN: (纸本)9781665491068

The green transition has brought about a worldwide-shift to the use of renewables as alternative energy sources. Because of this, high voltage DC has been a field of interest in power electronics due to its capability in efficiently transmitting power to reach remote areas. Typical DC-DC electronic power converter design has the capability of boosting voltage level to a certain extent but not enough for high-voltage applications. Using the DMAIC Approach of the Six Sigma, quality improvements in the design was proposed to stabilize operating frequency, bring up the output voltage from 100 VDC to 4,000 VDC and provide at least 10% margin of error in the apparent power measured at the output side to offset inherent losses in the electrical design. These proposed quality improvements were sustained by designing a control circuit that would ensure the attainment of the parameters set in the Define Phase of the DMAIC Approach. The result of the study is a practical 12 VDC to 4,000 VDC boost converter design that has incorporated all the proposed quality improvements. © 2022 IEEE.

关键词： Six sigma

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Condition Assessment of Underground Cable System Using Fuzzy Logic and Scoring and Weighting Average Methods

Condition Assessment of Underground Cable System Using Fuzzy...

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2023 International Conference on Power, Energy and Innovations, ICPEI 2023

作者： Romphoyen, Dineenath Panmala, Nattapon Suwanasri, Thanapong Suwanasri, Cattareeya King Mongkut's University of Technology North Bangkok The Sirindhorn International Thai-German Graduate School of Engineering EPE Program Bangsue Bangkok Thailand King Mongkut's University of Technology North Bangkok Faculty of Technical Education Department of Teacher Training in Electrical Engineering Bangsue Bangkok Thailand King Mongkut's University of Technology North Bangkok Faculty of Engineering Department of Electrical and Computer Engineering Bangsue Bangkok Thailand

ISBN: (纸本)9798350344585

In this paper, the overall health index of underground cable system is determined using Fuzzy Logic and Scoring and Weighting Average methods. The relevant data of 73 feeders has been collected in the prepared evaluation forms, divided into five major component groups: cable, joint, termination, manhole, and ductbank. In each component, various testing methods and diagnostic techniques are applied, and then the numerical score is determined according to the technical criteria for condition assessment. Subsequently, the obtained overall health index is multiplied with the conditional factor to incorporate the differences in installation type and configuration as well as the operating and environmental conditions. Finally, the overall health index based on these two methods is compared to verify the accuracy of the obtained results to properly plan the preventive and condition-based maintenance and to improve the reliability of the underground cable system. © 2023 IEEE.

关键词： Fuzzy logic

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Simultaneous, Coordinated and Centralized Control of Fast Charging Stations and Advanced Microgrids

Simultaneous, Coordinated and Centralized Control of Fast Ch...

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International (EPE-PEMC) Power electronics and Motion Control Conference

作者： Dener A. de L. Brandao Gabriel V. Ramos Danilo I. Brandao Igor A. Pires Graduate Program in Electrical Engineering Universidade Federal de Minas Gerais Belo Horizonte Brazil Department of Electrical Engineering Universidade Federal de Minas Gerais Belo Horizonte Brazil Department of Electronics Engineering Universidade Federal de Minas Gerais Belo Horizonte Brazil

ISBN: (数字)9798350385236

ISBN: (纸本)9798350385243

The insertion of fast charging stations (FCSs) and distributed energy resources (DERs) aggravates technical issues in the electrical power system, such as variations in the point of common coupling (PCC) voltage profile and overload on feeders. Ancillary services provided by these elements help to reduce these issues and microgrid (μG) control algorithms coordinate these ancillary services. However, microgrid control studies focus on solutions that do not simultaneously coordinate FCSs and DERs, nor the coordination of advanced microgrids and FCSs. This paper proposes a coordinated and simultaneous control of FCSs and advanced microgrids. The results show that the proposed method performs the ancillary services of valley filling and peak shaving in a minigrid (MG) (i.e., a set of advanced microgrids, FCSs and others). This method allows the voltage profile to be maintained at appropriate levels, ensuring the commitment to vehicle recharging and the independence of the advanced microgrid.

关键词： Couplings Energy resources Microgrids Power electronics Filling Fast charging Power systems Distributed power generation Motion control Centralized control

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Plasmonic BICs as Biosensors with Better Detectivity

Plasmonic BICs as Biosensors with Better Detectivity

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2023 Conference on Lasers and Electro-Optics, CLEO 2023

作者： Li, Zhichao Prasad, Ciril S. Wang, Xielin Naik, Gururaj V. Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States

Plasmonic sensors exhibit high sensitivity due to enhanced local fields. But, their detectivity is poor because of their poor Q-factors. Using a plasmonic BIC, we experimentally demonstrate enhanced Q-factors in a pla... 详细信息

ISBN: (纸本)9781957171258

关键词： Q factor measurement

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Investigation of Lightning Overvoltage on 220 kV Transmission Lines in Bhutan Using ATP-EMTP

Investigation of Lightning Overvoltage on 220 kV Transmissio...

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2023 International Conference on Power, Energy and Innovations, ICPEI 2023

作者： Samten Suwanasri, Thanapong Suwanasri, Cattareeya Panmala, Nattapon King Mongkut's University of Technology North Bangkok The Sirindhorn International Thai-German Graduate School of Engineering EPE Program Bangsue Bangkok Thailand King Mongkut's University of Technology North Bangkok Faculty of Engineering Department of Electrical and Computer Engineering Bangsue Bangkok Thailand King Mongkut's University of Technology North Bangkok Faculty of Technical Education Department of Teacher Training in Electrical Engineering Bangsue Bangkok Thailand

ISBN: (纸本)9798350344585

This paper provides an examination of the impact of lightning strikes on a 220 kV double circuit (D/C) high voltage transmission line in Bhutan. The study employs the ATP-EMTP software to identify the leading causes of transmission line faults, which are primarily attributed to lightning strikes. Since the transmission lines run through areas in Bhutan that are prone to severe weather conditions and lightning strikes, they are vulnerable to damage, leading to an unreliable power supply. To address this issue, the author proposes several solutions, such as enhancing the tower footing resistance and installing line surge arresters. The author also created models of different transmission towers and analyzed an 18 km stretch of the transmission line that is highly susceptible to lightning strikes. © 2023 IEEE.

关键词： Electric lines

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Stability Analysis of Speed Control Systems for Variable Speed Wind Power Generation Systems Using SRG and Capacitor-Less AC-AC Converters

Stability Analysis of Speed Control Systems for Variable Spe...

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International Conference on Renewable Energy Research and Applications (ICRERA)

作者： Haozheng Jia Kazuhiro Ohyama Engineering Master's Program of Electrical Engineering Graduate School Fukuoka Institute of Technology Higashi-ku Fukuoka Japan Department of Electrical Engineering Faculty of Engineering Fukuoka Institute of Technology Higashi-ku Fukuoka Japan

ISBN: (数字)9798350375589

ISBN: (纸本)9798350375596

This paper extends previous work on simulation models of switched reluctance generators (SRG) by demonstrating that selecting appropriate proportional-integral (PI) gain settings enables rapid adaptation to wind speed variations, thereby ensuring system stability. The study shows that employing continuously varying gains provides a detailed understanding of the system's dynamic performance, offering insights into the effects of different gain profiles on stability. The transient responses induced by changes in PI gain are effectively mitigated through the introduction of a compensatory signal derived from the system's maximum transient response. Alternatively, it has been demonstrated that a gain with a smooth transition profile, such as one based on a Bessel curve, achieves a comparable stabilizing effect by eliminating transient phenomena and improving response smoothness. These measures collectively enhance the system's stability and robustness, making the control framework more adaptable to dynamic conditions and offering practical insights for the design of wind power generation systems. The findings highlight the potential of these methods to optimize energy conversion and improve the operational reliability of SRG-based systems under varying wind speeds.

关键词： Transient response Renewable energy sources System dynamics Wind speed Velocity control Switches Wind power generation Stability analysis Robustness Transient analysis

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