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2025 international Conference on Control, Automation, and Instrumentation, IC2AI 2025

作者： Fatima, Syeda Eman Rahman, Syed Arsal Mumtaz, Wajid Nazeer, Muhammad Shayan School of Electrical Engineering and Computer Science National University of Sciences and Technology IslamabadH-12 Pakistan

ISBN: (纸本)9798331529604

This study aims to develop a practical proof of implementing a deep learning-based brain-computer interface (BCI) for motion intent classification and control of an assistive robotic arm. A modified version of EEGNet with attention is used for the real-time classification of EEG signals recorded using the Emotiv Epoc X headset. The robotic arm is built on an ESP32-WIFI Arduino. The motor imagery dataset by Physionet used for training consists of four classes out of which two have been used to map right and left arm movements. The data goes through necessary preprocessing steps: down-sampling, Butterworth filter, truncation, and z-score normalization. The modified EEGNet achieves an 82.01% validation accuracy on the dataset. The system has been tested for real-time usability by recordings of 3 seconds at 128Hz with minimum latency. © 2025 IEEE.

关键词： Butterworth filters

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Capacitor voltage unbalance minimization for three-phase five-level diode-clamped inverter using hexagonal hysteresis space vector modulation

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MULTISCALE AND MULTIDISCIPLINARY MODELING EXPERIMENTS AND DESIGN 2024年第2期7卷 661-671页

作者： Ramkumar, R. Singh, Manmohan Ramkumar, R. Usha, S. Thentral, T. M. Thamizh Department of Electrical and Electronics Engineering SRM Institute of Science and Technology Chengalpattu India Department of Computer Engineering and Application GLA University Mathura India Department of Electrical and Electronics Engineering School of Engineering and Technology Dhanalakshmi Srinivasan University Trichy India Department of Renewable Energy University of Maroua National Advanced School of Engineering of Maroua Maroua Cameroon

This article suggests a method for diminishing the voltage unbalance in a three-phase five-level diode-clamped inverter (DCI) through the use of hexagonal hysteresis space vector modulation (HHSVM). Capacitor voltage balancing leads to enhanced system efficiency, reduced stress on components, enhanced performance, abridged electromagnetic interference, and reduced total harmonic distortion. The proposed modulation technique and its implementation are thoroughly examined in this study, along with modeling and experiment data that show how efficient the method is at lowering the capacitor voltage unbalance in the proposed five-level DCI. Capacitor voltage unbalance is reduced with the use of this HHSVM approach to 0.95%, which is a superior reduction compared to traditional PWM methods. The paper also discusses the advantages of the proposed method over other existing methods, making it a promising solution for practical applications in power electronics systems.

关键词： Diode-clamped inverter (DCI) Capacitor voltage balancing Hexagonal hysteresis space vector modulation (HHSVM) Total harmonic distortion

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Automated Visualization of NOTAMs with Natural Language Processing

Automated Visualization of NOTAMs with Natural Language Proc...

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AIAA science and Technology Forum and Exposition, AIAA SciTech Forum 2025

作者： Salyer, Owen G. Phelps, Brady Mourning, Chad Russ College of Engineering and Technology Ohio University School of Electrical Engineering and Computer Science AthensOH United States

ISBN: (数字)9781624107238

ISBN: (纸本)9781624107238

NOTAMs (Notices to Air Missions) are crucial in aviation, providing essential information about flight operations such as airport conditions, airspace restrictions, and navigational aids;however, their complex format poses challenges for aviation professionals and laypersons alike. This complexity necessitates advanced technologies for automated information extraction and visualization of the data contained in NOTAMs. Natural language processing (NLP), particularly, named-entity recognition (NER), offers a promising solution by automating the identification and classification of critical information within these notices. This work focuses on employing NER to extract relevant entities from NOTAMs. We then use these extracted entities and a data visualization engine to create 3D representations of the extracted NOTAMs for specific regions. Building on our previous success with Obstruction class NOTAMs, we apply NER to multiple NOTAM classes in order to visualize them in 3D space, with the final goal of creating an automated system which allows for visualization of NOTAMs on a particular flight path or near a queried location. © 2025, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： Natural language processing systems

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Enhancing sound pressure output in graphene-based hybrid bone conduction hearing aids through electromagnetic and electrostatic integration

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Nano Research 2025年第4期18卷 425-434页

作者： Dong-Kwan Lee Hyunwoo Baek Byung-Ho Kang § Jongchan Yoo Kun-Woo Nam Sang Hyun Lee Illsoo Sohn Eunjung Han June Choi Sung-Hoon Park Department of Mechanical Engineering Soongsil UniversitySeoul 06978Republic of Korea Department of Otorhinolaryngology-Head and Neck Surgery Korea University College of MedicineAnsan HospitalAnsan 15355Republic of Korea School of Electrical Engineering Korea UniversitySeoul 02841Republic of Korea Department of Computer Science and Engineering Seoul National University of Science and TechnologySeoul 01811Republic of Korea

Bone conduction hearing aids(BCHA)actively serve patients with conductive hearing loss or external auditory canal problems,including auditory canal atresia,ossicular dislocation,*** are typically categorized into surgically implanted devices,embedded directly into the skull,and adhesive devices,which transmit sound through the *** latter are advantageous for being noninvasive and suitable for children under ***,adhesive devices,due to their sound transmission method,require enhanced sound output performance compared to implanted ***,known for its low mass density yet excellent mechanical and electrical properties,finds application in various electronic ***,it serves as a diaphragm in electroacoustic transducers,enabling stable vibrations across broad frequency *** electroacoustic transducers of BCHA are typically driven by electromagnetic methods,which may be effective in low-frequency ranges but not in high-frequency *** study successfully introduced a hybrid approach that combines the complementary advantages of both electromagnetic and electrostatic modes by utilizing a graphene sheet as the diaphragm for a hybrid graphene *** electrostatic mode,which performs better in highfrequency ranges compared to the electromagnetic mode,was implemented in this hybrid *** to the measured frequency response data,the hybrid mode showed up to an 11 dB improvement compared to the electromagnetic mode and up to a 21 dB improvement compared to the electrostatic mode,exhibiting a relatively flat shape over a wide frequency ***,the device’s effectiveness as a BCHA is confirmed through experiments on rabbits,showcasing its potential in auditory aid advancement.

关键词： graphene bone conduction hearing aid loudspeaker frequency response

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One-Step Plasma Jet Deposition and Self-Sintering of Gold Nanoparticle Inks on Low-Temperature Substrates

IEEE Journal on Flexible Electronics

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IEEE Journal on Flexible Electronics 2024年第5期3卷 197-204页

作者： Manzi, Jacob Varghese, Tony Eixenberger, Josh Prakasan, Lakshmi Estrada, David Subbaraman, Harish Oregon State University School of Electrical Engineering and Computer Science CorvallisOR97331 United States Boise State University Department of Electrical and Computer Engineering Micron School of Material Science and Engineering BoiseID83725 United States Boise State University Micron School of Material Science and Engineering Center for Advanced Energy Studies BoiseID83725 United States Idaho National Laboratory Idaho FallsID83415 United States INFlex Labs LLC BoiseID83706 United States

Flexible electronics on low-temperature substrates like paper are very appealing for their use in disposable and biocompatible electronic applications and areas like healthcare, wearables, and consumer electronics. Plasma-jet printing (PJP) uses a dielectric barrier discharge plasma to focus aerosolized nanoparticles onto a target substrate. The same plasma can be used to change the properties of the printed material and even sinter in situ. In this work, we demonstrate the one-step deposition of gold structures onto flexible and low-temperature substrates without the need for thermal or photonic postprocessing. We also explore the plasma effect on the deposition of the gold nanoparticle ink. The plasma voltage is optimized for the sintering of the gold nanoparticles, and a simple procedure for manufacturing traces with increased adhesion and conductivity is presented, with a peak conductivity of 6.2\times 10{5} S/m. PJP-printed gold LED interconnects and microheaters on flexible substrates are developed to demonstrate the potential of this single-step sintered deposition of conductive traces on low-temperature substrates. © 2022 IEEE.

关键词： Sintering

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Task Offloading and Approximate Computing in Solar Powered IoT Networks

IEEE Networking Letters

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IEEE Networking Letters 2024年第1期6卷 26-30页

作者： Zhan, Junfei Wu, Jiayi He, Tengjiao Chin, Kwan-Wu Jinan University College of Information Science and Technology Guangzhou510632 China University of Wollongong School of Electrical Computer and Telecommunications Engineering WollongongNSW2522 Australia

This letter considers approximate computing and task offloading in a solar powered internet of Things (IoT) network. Specifically, it addresses the novel problem of minimizing the energy consumption of IoT devices by either offloading their tasks or executing these tasks in approximate mode. To this end, this letter outlines a novel mixed integer linear program (MILP) that computes the minimum total energy required to execute tasks. It optimizes four key factors: (i) task offloading decision of devices, (ii) use of approximate computing by devices, (iii) channel allocation, and (iv) virtual machine (VM) assignment. Further, it outlines a novel solution that determines these factors using channel gain and energy arrival estimates obtained from digital twins (DTs). The results show that our DT-based solution uses at most 1.62x more energy than MILP. © 2019 IEEE.

关键词： Energy harvesting

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High-Efficiency Asymmetrically Designed Three-Phase Virtual 48-Pulse Power Supply for Electrolytic Hydrogen

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IEEE Transactions on Power Electronics 2025年第8期40卷 10335-10342页

作者： Tian, Hanlei Cui, Haoran Han, Wei Sathik M, Jagabar Liang, Guozhuang Chen, Maolin Mekhilef, Saad Electrical Engineering School of Hebei University of Science and Technology Shijiazhuang050091 China Sustainable Energy and Environment Thrust Guangzhou511453 China The Hong Kong University of Science and Technology Department of Electronic and Computer Engineering Hong Kong Hong Kong SRM Institute of Science and Technology Faculty of Engineering and Technology Kattankulathur603203 India Sichuan University College of Electrical Engineering Chengdu610065 China Swinburne University of Technology School of Science Computing and Engineering Technologies MelbourneVIC3122 Australia

To address the low-voltage, high-current requirements in hydrogen production applications, a virtual 48-pulse three-phase rectifier is proposed, and achieves the equivalent performance of four parallel 12-pulse rectifiers (12-PR). The proposed approach builds upon the conventional 12-PR design and incorporates novel asymmetric current injection units (ACIU). The ACIU is installed on the dc side of the ac-dc converter, generating a specific current at the dc link to modulate and enhance the operating modes of the 12-PR. Consequently, the 12-pulse is extended to 48, resulting in an almost sinusoidal input current with a total harmonic distortion of 3.2% and an output current with a ripple rate of 2.3%, thus significantly improving power quality. Furthermore, the asymmetric design of the current injection units eliminates the need for a phase-shifting transformer. The efficacy of the proposed rectifier for electrolytic hydrogen production is validated using a 2.2-kW experimental prototype. © 1986-2012 IEEE.

关键词： Voltage Hydrogen Rectifiers Production Windings Circuits Inductors Transformers Harmonic analysis Electrochemical processes

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Research on Enhancing Customer Experience through AI-Supported Review Generation

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Transactions of the Korean Institute of electrical Engineers 2024年第2期73卷 334-342页

作者： Park, Su-Hyun Lee, Ye-Eun Lee, Han-Jin School of Creative Convergence Education Handong Global University Korea Republic of School of Computer Science and Electrical Engineering Handong Global University Korea Republic of School of Global Entrepreneurship and ICT Handong Global University Korea Republic of

As online & mobile grocery shopping grow globally amid the COVID-19 pandemic, consumer reviews are having a significant impact on purchasing behavior. As the AI and Bigdata technologies advance, the development of purchase reviews has expanded significantly, necessitating research from a multidisciplinary and convergent perspective. Accordingly, in this study, we proposed and demonstrated four user convenience functions applying the latest technology to multi-dimensionally analyze the purchasing experience of digital consumers. To this end, based on the reviews written by existing customers, we provide the ChatGPT API powered purchase review suggestion functions along with visual representation of keywords (Word Cloud). Also, detailed review recommendations by topic based on CombinedTM Algorithm) topic modeling, search-based review collections are delivered. Analyzing the survey results in depth, while customers' awareness and importance evaluation of purchase review service support functions were high, trust showed differences depending on age group. Through the results, we were able to confirm the importance and positive impact of improving customer experience through AI support when writing purchase reviews. These results are expected to provide practical and policy implications for expanding and improving the ecosystem surrounding digital mediated reviews. © 2024 Korean Institute of electrical Engineers. All rights reserved.

关键词： Consumer behavior

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STABILITY BOUNDARY ANALYSIS OF GRID-FORMING AND GRID-FOLLOWING INVERTERS 14

STABILITY BOUNDARY ANALYSIS OF GRID-FORMING AND GRID-FOLLOWI...

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14th Mediterranean Conference on Power Generation Transmission, Distribution and Energy Conversion, MEDPOWER 2024

作者： Luo, Xi Batzelis, Efstratios Singh, Abhinav Saridaki, Georgia Kotsampopoulos, Panos School of Electronics and Computer Science University of Southampton Southampton United Kingdom School of Electrical and Computer Engineering National Technical University of Athens Greece

ISBN: (纸本)9781837242689

Stability issues and oscillations associated with inverter-based resources (IBRs) are of increasing concern in inverter-dominated power systems. This study explores the stability boundary of grid-following (GFL) and grid-forming (GFM) inverters and performs a sensitivity analysis for the most relevant control and grid parameters. A stability boundary tracking (SBT) algorithm is proposed, which can identify the stability boundary relating up to three parameters of interest for both GFL and GFM inverters. This boundary is then illustrated as two-dimensional stability curve or three-dimensional stability surface to facilitate understanding the impact of certain parameters on the stability margin. A comprehensive sensitivity analysis of different controller parameters as well as power factor and line R/X ratio draws parallels on their impact to GFL and GFM stability. © The Institution of engineering & Technology 2024.

关键词： Sensitivity analysis

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Enhancing Voltage and Frequency Control in Islanded VSC-Based Microgrids: A PSO-Driven Multilayer Perceptron Approach

Enhancing Voltage and Frequency Control in Islanded VSC-Base...

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2024 IEEE PES Innovative Smart Grid Technologies Europe Conference, ISGT EUROPE 2024

作者： Beyene, Yared Bekele Worku, Getachew Biru Tjernberg, Lina Bertling Addis Ababa University School of Electrical and Computer Engineering Addis Ababa Ethiopia Kth Royal Institute of Technology School of Electrical and Computer Science Stockholm Sweden

ISBN: (纸本)9789531842976

This paper proposes a novel design approach using the particle swarm optimization-trained multilayer perceptron neural network (PSO-MLPNN) for inner current and voltage controllers in voltage source converter (VSC)-based islanded AC microgrids. Unlike conventional controllers that depend on line parameters, our intelligent controller structure operates independently of these parameters. The PSO-MLPNN controller effectively replaces the traditional Proportional-Integral (PI) controller, achieving accurate power-sharing and excellent dynamic performance across various load scenarios. Simulation results validate the effectiveness of our proposed controller. © 2024 IEEE.

关键词： Particle swarm optimization (PSO)

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