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2nd International Conference on Data Security and Privacy Protection, DSPP 2024

作者： Ravikumar, C.V. Sathish, K. Su, Chunhua School of Electronics Engineering Vellore Institute of Technology Vellore632014 India Department of Electronics and Communication Engineering Saveetha School of Engineering SIMATS Deemed University Chennai602105 India Division of Computer Science University of Aizu Fukushima Aizuwakamatsu965-8580 Japan

ISBN: (纸本)9789819785452

The design and study of piezoelectric energy harvesters for wireless sensor networks (WSNs) includes the creation of effective energy solutions to increase the operating life of sensors without requiring frequent battery changes. These harvesters are intended to capture energy from piezoelectric sources. This study focuses on providing a sustainable power supply for WSNs through the use of piezoelectric materials. These materials can transfer mechanical vibrations from surrounding sources into electrical energy. The primary goal of this study is to maximise the quantity of energy that can be captured by maximising the piezoelectric harvester’s design parameters. These parameters include material selection, geometric arrangements, and the harvester’s positioning in various circumstances. Sophisticated modelling approaches and analytical models are used to forecast the harvester’s performance across a range of vibrational frequencies and amplitudes. In addition, experimental validation is performed to ensure that the theoretical models are accurate. The investigation reveals the primary factors influencing the efficiency and feasibility of piezoelectric energy harvesters. These considerations include resonance tuning, power conditioning circuits, and integration with energy storage systems. Both of these factors are well examined. Not only does this comprehensive approach highlight the potential of piezoelectric harvesters to significantly improve the energy autonomy of WSNs, but it also lays the groundwork for future advances in low-power, self-sustaining sensor networks. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Piezoelectricity

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MEMS Design Process Based Simulation and Analysis of a Hypothetical Sensor Design with Electromechanics Interface 2nd

MEMS Design Process Based Simulation and Analysis of a Hypot...

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2nd International Conference on Data Security and Privacy Protection, DSPP 2024

作者： Sathish, K. Ravikumar, C.V. Su, Chunhua Department of Electronics and Communication Engineering Saveetha School of Engineering SIMATS Deemed University Chennai602105 India School of Electronics Engineering Vellore Institute of Technology Vellore632014 India Division of Computer Science University of Aizu Aizuwakamatsu City Fukushima965-8580 Japan

ISBN: (纸本)9789819785452

This study simulates and examinesthe MEMS design process for a hypothetical sensor with an electromechanical interface. Conceptualizing the sensor entails establishing its purpose, operational environment, and capacitive sensing mechanism for sensitivity and precision. Geometric and physical models are developed using advanced COMSOL Multiphysics software to create a moveable proof mass supported by micro-fabricated beams. Static and dynamic finite element analysis (FEA) simulations can be used to evaluate the sensor’s mechanical reaction to input signals and electrode electrostatic forces. This guarantees that mechanical signals are properly transformed into electrical signals. These data are evaluated to determine the best performance criteria such as sensitivity, linearity, and thermal stability, resulting in iterative design improvements. Robustness analysis, including tolerance and FMEA, ensures dependability. Additionally, typical MEMS manufacturing technologies are being examined for fabrication. This simulation-driven strategy prioritises electro-mechanical interface issues throughout the design process, resulting in high-performance, and dependable MEMS sensors for a wide range of applications. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Microchannels

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Quantum Field Current Modelling in a Semiconductor 3rd

Quantum Field Current Modelling in a Semiconductor

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3rd International Conference on Computational electronics for Wireless Communications, ICCWC 2023

作者： Vaish, Arti Parthasarathy, Harish Department of Computer Science and Engineering School of Engineering and Technology O P Jindal University CG Raigarh Punjipathra India Electronics and Communication Division Netaji Subhas University of Technology Dwarka New Delhi India

ISBN: (纸本)9789819719426

In this paper, we model the sea of electrons and holes within a semiconductor using the second quantized electron-positron Dirac wave operator field interacting with an applied classical electromagnetic field, a quantum photon field which can be regarded as quantum fluctuations of the electromagnetic field, and a noisy quantum photon field coming from the bath outside the semiconductor. Essentially, in this model, the Dirac wave field interacts and evolves along with the quantum photon field in the given background classical electromagnetic field and the given quantum noisy operator electromagnetic field. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Photons

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A Novel Bypass Architecture for RB-COT Buck Converters

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IEEE Transactions on Circuits and Systems II: Express Briefs 2025年第5期72卷 793-797页

作者： Gabriele, Francesco Gisonno, Samuele Fiori, Filippo Lena, Davide Musumeci, Salvatore Rosario Pareschi, Fabio Setti, Gianluca Politecnico di Torino Department of Electronics and Telecommunications Turin10129 Italy STMicroelectronics s.r.l. Turin20041 Italy King Abdullah University of Science and Technology Computer Electrical and Mathematical Science and Engineering Division Thuwal23955 Saudi Arabia

In this brief we propose a novel ByPass (BP) circuit that overcomes the voltage regulation limit in the Ripple Based Constant On-Time (RB-COT) Buck converters due to intrinsic presence of a minimum achievable OFF time. The BP stage is conceived to be embedded in the RB-COT modulator located within the converter feedback loop, and only intervening when the minimum OFF time condition is reached. The latter implies that the COT modulator saturates, and consequently, the output voltage regulation of the converter is no longer guaranteed. Conversely, the BP stage does not affect the behavior of the circuit when it operates in normal regulating condition. The effectiveness of the proposed BP stage is confirmed through both transistor-level simulation results derived from the SPICE platform and experimental measurements on a integrated circuit prototype implemented in a 0.18 um Bipolar-CMOS-DMOS process. © 2004-2012 IEEE.

关键词： Buck converter

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Nanoimprint lithography-assisted block copolymer self-assembly for hyperfine fabrication of magnetic patterns based on L10-FePt nanoparticles

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Science China Chemistry 2025年第5期68卷 2027-2034页

作者： Jie Zhang Yi Chen Guijun Li Zelin Sun Zhengong Meng Wai-Yeung Wong Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy The Hong Kong Polytechnic University The Hong Kong Polytechnic University Shenzhen Research Institute Division of Integrative Systems and Design and Department of Electronic and Computer EngineeringThe Hong Kong University of Science and Technology School of Flexible Electronics (Future Technology) and Institute of Advanced Materials (IAM) Nanjing Tech University

L10-FePt-type bit-patterned media has provided a promising alternative for ultrahigh-density magnetic recording systems in the current digital era, but rapid fabrication of magnetic patterns with hyperfine bit islands is still challenging, especially with the target for miniaturization and scalable production simultaneously. Herein, Fe,Pt-containing block copolymers were utilized as single-source precursors for solution-processable patterning and subsequent generation of the demanding magnetic FePt dots by in situ pyrolysis. High-throughput nanoimprint lithography was initially employed to fabricate the predefined bit cells precisely,and then the intrinsic self-assembly of phase-separated block copolymers further drove the formation of accurate bit *** from the synergistic effect of top-down lithographic approach and bottom-up self-assembly, the customizable patterns could be achieved for large-scale mass production in targeted areas, but high-density isolated dots could also be accurately aligned along the patterned features after subsequent self-assembly. This reliable strategy would provide a good avenue to precisely construct ultrahigh-density magnetic data storage devices.

关键词： organometallic precursor magnetic nanoparticles block copolymer self-assembly nanoimprint lithography

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A Finite Element Technique for Approximately Solving for the Electromagnetic Field Within a Cavity Resonator 3rd

A Finite Element Technique for Approximately Solving for t...

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3rd International Conference on Computational electronics for Wireless Communications, ICCWC 2023

作者： Vaish, Arti Parthasarathy, Harish Dua, Rakhi Department of Computer Science and Engineering School of Engineering and Technology O P Jindal University CG Raigarh Punjipathra India Electronics and Communication Division Netaji Subhas University of Technology Dwarka New Delhi India ECE Department KR Manglam University Gurugram India

ISBN: (纸本)9789819719426

This paper develops a four space-time dimensional finite element approach for approximately calculating the electromagnetic and Dirac fields within a 3-D cavity resonator taking into account the interaction between the two fields. The idea is to partition the four-dimensional space-time region consisting of the 3-D cavity and the finite time duration over which the fields are to be determined into four-dimensional simplices. Each simplex is defined by five vertex points in four-dimensional space-time and the fields within each such simplex are expressed as affine linear functions of the four simplex coordinates so that the values of the field at the vertices of the simplex coincides with the field value at that vertex. We then substitute these affine linear functions into the action functional of the electromagnetic field interacting with the Dirac field thereby yielding a quadratic function of the simplex vertex field values corresponding to the free field action plus cubic function of the vertex fields corresponding to the interaction action between the Dirac current and the electromagnetic field. By summing up this action over all the simplices into which we have partitioned the space-time region, we obtain a quadratic-cubic function of the field values at all the vertices of the different simplices. The problem of approximately calculating the fields within the cavity then amounts to minimizing this function of a finite number of complex variables corresponding to the field values at the vertices of the simplices. This optimization can be carried out using for example a gradient search algorithm or using perturbation theory for obtaining solutions to a system of nonlinear algebraic equations when the nonlinearity is small. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Perturbation techniques

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Explainable AI-aided Feature Selection and Model Reduction for DRL-based V2X Resource Allocation

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IEEE Transactions on Communications 2025年

作者： Khan, Nasir Abdallah, Asmaa Celik, Abdulkadir Eltawil, Ahmed M. Coleri, Sinem Koc University department of Electrical and Electronics Engineering Istanbul Turkey King Abdullah University of Science and Technology Computer Electrical and Mathematical Sciences and Engineering Division Thuwal23955 Saudi Arabia

Artificial intelligence (AI) is expected to significantly enhance radio resource management (RRM) in sixth-generation (6G) networks. However, the lack of explainability in complex deep learning (DL) models poses a challenge for practical implementation. This paper proposes a novel explainable AI (XAI)-based framework for feature selection and model complexity reduction in a model-agnostic manner. Applied to a multi-agent deep reinforcement learning (MADRL) setting, our approach addresses the joint sub-band assignment and power allocation problem in cellular vehicle-to-everything (V2X) communications. We propose a novel two-stage systematic explainability framework leveraging feature relevance-oriented XAI to simplify the DRL agents. While the former stage generates a state feature importance ranking of the trained models using Shapley additive explanations (SHAP)-based importance scores, the latter stage exploits these importance-based rankings to simplify the state space of the agents by removing the least important features from the model’s input. Simulation results demonstrate that the XAI-assisted methodology achieves ~97% of the original MADRL sum-rate performance while reducing optimal state features by ~28%, average training time by ~11%, and trainable weight parameters by ~46% in a network with eight vehicular pairs. © 1972-2012 IEEE.

关键词： Deep reinforcement learning

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Damage-Free Neutral Beam Etching for Gate Recess in E-Mode AlGaN/GaN HEMTs

IEEE Electron Device Letters

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IEEE Electron Device Letters 2025年第5期46卷 705-708页

作者： Chen, Yi-Ho Chu, Fu-Chuan Aslam, Muhammad Lee, Yao-Jen Li, Yiming Samukawa, Seiji National Yang Ming Chiao Tung University Parallel and Scientific Computing Laboratory Graduate Degree Program of College of Electrical and Computer Engineering Hsinchu300093 Taiwan National Chung-Shan Institute of Science and Technology Solid State Devices Section Electronic System Research Division Taoyuan325 Taiwan National Yang Ming Chiao Tung University Parallel and Scientific Computing Laboratory Electrical Engineering and Computer Science International Graduate Program Hsinchu300093 Taiwan Institute of Pioneer Semiconductor Innovation National Yang Ming Chiao Tung University Hsinchu300093 Taiwan Institute of Pioneer Semiconductor Innovation Institute of Artificial Intelligence Innovation National Yang Ming Chiao Tung University Parallel and Scientific Computing Laboratory Institute of Biomedical Engineering Department of Electronics and Electrical Engineering Institute of Communications Engineering Hsinchu300093 Taiwan National Yang Ming Chiao Tung University Institute of Communications Engineering Department of Electronics and Electrical Engineering Hsinchu300093 Taiwan

Recess gate etching is a critical technique for achieving enhancement-mode (E-mode) AlGaN/GaN high-electron mobility transistors (HEMTs) because the interface is susceptible to the etching damage. This study fabricates recess gates using the neutral beam etching (NBE) technique. By adjusting the aperture thickness in the NBE apparatus, we simulate both NB-mode and plasma-mode etching. The electrical characteristics of E-mode HEMTs fabricated using these two modes are analyzed and compared through DC, noise, and pulsed IV measurements. The results demonstrate that NB-recessed HEMTs exhibit superior performance. © 1980-2012 IEEE.

关键词： Aluminum gallium nitride

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An Array of Silicon Dual Microneedle Electrodes Integrated With mini-LEDs for Electrophysiological Recording And Simultaneous Application of Electrical and Optical Stimuli to the Retina for Artificial Vision 38

An Array of Silicon Dual Microneedle Electrodes Integrated W...

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38th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2025

作者： Chung, Seung-Han Kim, Chaesung Kim, Yong-Kweon Lee, Seung-Ki Park, Jae-Hyoung Im, Maesoon Seoul National University Department of Electrical and Computer Engineering Seoul Korea Republic of College of Engineering Korea University School of Electrical Engineering Seoul Korea Republic of Dankook University Department of Electronics and Electrical Engineering Yongin Korea Republic of Seoul Korea Republic of Division of Bio-Medical Science and Technology Seoul Korea Republic of Kyung Hee University KHU-KIST Department of Converging Science and Technology Seoul Korea Republic of

ISBN: (纸本)9798331508890

We report a novel hybrid neural interface device that not only enables simultaneous application of electrical and optical stimuli but also offers electrophysiological recording capability. A 6×6 silicon dual microneedle electrode array was fabricated and each pair consisted of recording and stimulating electrodes. A mini-LED matrix was also integrated underneath the electrode array to deliver optical stimulation. Spiking activities of retinal ganglion cells of an ex-vivo retina were successfully recorded in response to electrical and optical stimuli applied from the fabricated device. © 2025 IEEE.

关键词： Light emitting diodes

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Modelling of electric dental hand pipe using ANFIS assisted micro-permanent magnet synchronous motor

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Journal of Mechanical Science and Technology 2025年第5期39卷 2531-2547页

作者： Francis, Jebin Michael, Prawin Angel Joseph, Ashna Jarin, T. Department of Electrical and Electronics Engineering Karunya Institute of Technology and Sciences Tamil Nadu Coimbatore India Division of Aerospace Engineering Karunya Institute of Technology and Sciences Tamil Nadu Coimbatore India Department of Electrical and Electronics Engineering Mar Athanasius College of Engineering Kothamangalam Kerala Kochi India Department of Computer Science and Engineering Jyothi Engineering College APJ Abdul Kalam Technological University Kerala Thrissur India

In this research, an adaptive neuro-fuzzy interference system (ANFIS) hybrid proportional integral (HPI) controller is used to apply a micro-permanent magnet synchronous motor (μ-PMSM) in an electric dental hand pipe. Handpieces that provide controlled torque and consistent speed are essential for various dental procedures. Hand pipes must have the fundamental components of a μ-PMSM motor under control in order for them to operate correctly. This suggested approach uses an ANFIS-HPI controller, which is based on the pelican optimization algorithm (POA), to manage torque and speed. The Matlab/Simulink platform is utilized for the simulation and evaluation of the μ-PMSM motor’s whole speed control and torque control system. The suggested controller shows a rise time of 0.025 and a setlting time of 0.075, with zero peak overrun. It is evident from the outcome that there has been a system performance improvement. © The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2025.

关键词： Proportional control systems

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