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Electronics, Volume 14, Issue 24

2025 December-2 - 200 articles

Cover Story: This study evaluates the use of motor current signature analysis (MCSA) to monitor axial fan motors in highway tunnels under real operating conditions. Measurements were taken remotely from electrical cabins using a permanently installed acquisition system with Rogowski sensors, enabling monitoring of all motors in each tunnel. Harmonics associated with rotor bar defects and eccentricity were tracked over time. Comparison of the results with maintenance reports confirmed eccentricity in two motors caused by bearing defects, while aluminium porosity was suspected in one motor. Furthermore, it is envisaged that machine-learning methods could be applied to the measured signals, together with additional inputs, to enable future remaining useful life estimation and predictive maintenance. View this paper
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Articles (200)

  • Article
  • Open Access
439 Views
14 Pages

Demonstration of 2D Optoelectronic THz-Wave Beam Steering

  • Bo Li,
  • Hussein Ssali,
  • Yuanhao Li,
  • Ming Che,
  • Shenghong Ye,
  • Yuya Mikami and
  • Kazutoshi Kato

18 December 2025

Advanced two-dimensional (2D) beam steering is essential for unlocking the full potential of terahertz (THz) systems in future 6G communications and high-resolution imaging. However, achieving wide-angle, high-speed, and high-precision 2D beam contro...

  • Article
  • Open Access
328 Views
17 Pages

18 December 2025

In the case of small disturbances in the power grid, virtual synchronous generators (VSGs) often exhibit active power steady-state errors and significant frequency overshoot, and it is difficult to balance the reduction of active power steady-state e...

  • Article
  • Open Access
516 Views
25 Pages

PVConv: Enhancing Depthwise Separable Convolution via Preference-Value Learning for Similar-Feature Discrimination

  • Weixiong Peng,
  • Bingyan Li,
  • Ping Wang,
  • Huiping Huang,
  • Yangyang Zou and
  • Xiaoli Qiao

18 December 2025

Depthwise Separable Convolution (DSC) is widely used due to its significant reduction in parameters and computational cost. However, the depthwise convolution process leads to a decrease in spatial information integration, limiting the network’...

  • Article
  • Open Access
1 Citations
937 Views
24 Pages

18 December 2025

This article addresses the lack of low-cost, secure image-transmission solutions for IoT systems in remote environments. The design and implementation of a complete LoRa-based transmission system using ESP32 microcontrollers and Ebyte E220 modules, f...

  • Article
  • Open Access
370 Views
16 Pages

Enabling Fast Frequency Response with Adaptive Demand-Side Resource Control: Strategy and Field-Testing Validation

  • Shunxin Wei,
  • Yingqi Liang,
  • Zhendong Zhao,
  • Yan Guo,
  • Jiyu Huang,
  • Ying Xue and
  • Yiping Chen

18 December 2025

With the large-scale integration of new energy and power electronic devices into power systems, frequency stability has become an increasingly critical concern. To maintain frequency stability while mitigating the high capital expenditure of energy s...

  • Article
  • Open Access
276 Views
22 Pages

FedTULGAC: A Federated Learning Method for Trajectory User Linking Based on Graph Attention and Clustering

  • Haitao Zhang,
  • Yang Xu,
  • Huixiang Jiang,
  • Yuanjian Liu,
  • Weigang Wang,
  • Yi Li,
  • Yuhao Luo and
  • Yuxuan Ge

18 December 2025

Trajectory User Linking (TUL) is a pivotal technology for identifying and associating the trajectory information from the same user across various data sources. To address the privacy leakage challenges inherent in traditional TUL methods, this study...

  • Article
  • Open Access
609 Views
21 Pages

A Deep Learning Approach to Classifying User Performance in BCI Gaming

  • Aimilia Ntetska,
  • Anastasia Mimou,
  • Katerina D. Tzimourta,
  • Pantelis Angelidis and
  • Markos G. Tsipouras

18 December 2025

Brain–Computer Interface (BCI) systems are rapidly evolving and increasingly integrated into interactive environments such as gaming and Virtual/Augmented Reality. In such applications, user adaptability and engagement are critical. This study...

  • Article
  • Open Access
407 Views
21 Pages

A Unified Fault-Tolerant Batch Authentication Scheme for Vehicular Networks

  • Yifan Zhao,
  • Hu Liu,
  • Xinghua Li,
  • Yunwei Wang,
  • Zhe Ren and
  • Peiyao Wang

18 December 2025

This paper proposes a unified fault-tolerant batch authentication scheme for vehicular networks, designed to address key limitations in existing approaches, namely the segregation between in-vehicle and V2I authentication scenarios and the lack of fa...

  • Article
  • Open Access
459 Views
16 Pages

18 December 2025

Multimodal emotion recognition (MER) often relies on single-scale representations that fail to capture the hierarchical structure of emotional signals. This paper proposes a Dual Routing Mixture-of-Experts (MoE) model that dynamically selects between...

  • Article
  • Open Access
686 Views
22 Pages

18 December 2025

The generation of synthetic cyber threat intelligence (CTI) has emerged as a significant area of research, particularly regarding the capacity of large language models (LLMs) to produce realistic yet deceptive security content. This study explores bo...

  • Article
  • Open Access
365 Views
19 Pages

18 December 2025

This paper proposes a small-signal model of a DC–DC parallel resonant converter operating in continuous conduction mode based on asymmetric pulse-width modulation (APWM) under light-load conditions. The parallel resonant converter enables soft...

  • Article
  • Open Access
752 Views
25 Pages

18 December 2025

Steel, a fundamental material in modern industry, is widely used across manufacturing, construction, and energy sectors. Steel surface defects exhibit characteristics such as multiple classes, multi-scale features, small detection targets, and low-co...

  • Article
  • Open Access
566 Views
27 Pages

18 December 2025

In recent years, intelligent driving has attracted more and more attention due to its potential to revolutionize transportation safety and efficiency, emerging as a disruptive technology that reshapes the future landscape of transportation. Environme...

  • Article
  • Open Access
598 Views
22 Pages

An AI-Driven System for Learning MQTT Communication Protocols with Python Programming

  • Zihao Zhu,
  • Nobuo Funabiki,
  • Htoo Htoo Sandi Kyaw,
  • I Nyoman Darma Kotama,
  • Anak Agung Surya Pradhana,
  • Alfiandi Aulia Rahmadani and
  • Noprianto

18 December 2025

With rapid developments of wireless communication and Internet of Things (IoT) technologies, an increasing number of devices and sensors are interconnected, generating massive amounts of data in real time. Among the underlying protocols, Message Queu...

  • Article
  • Open Access
822 Views
14 Pages

Neurosynaptic Core Prototype for Memristor Crossbar Arrays Diagnostics

  • Ivan V. Alyaev,
  • Igor A. Surazhevsky,
  • Dmitry V. Ichyotkin,
  • Vladimir V. Rylkov and
  • Vyacheslav A. Demin

18 December 2025

The use of neural network technologies is becoming more widespread today, from automating routine office tasks to developing new medicines. However, at the same time, the load on power grids and generation systems increases significantly, which, alon...

  • Article
  • Open Access
661 Views
25 Pages

18 December 2025

The aquaculture industry is growing strongly, especially in facilities and technical infrastructure. Aquaculture real estate serves as an important component for these developments. Although the aquaculture real estate sector represents a dynamic mar...

  • Article
  • Open Access
1,008 Views
15 Pages

The Effect of Tactile Feedback on the Manipulation of a Remote Robotic Arm via a Haptic Glove

  • Christos Papakonstantinou,
  • Konstantinos Giannakos,
  • George Kokkonis and
  • Maria S. Papadopoulou

18 December 2025

This paper investigates the effect of tactile feedback on the power efficiency and timing of controlling a remote robotic arm using a custom-built haptic glove. The glove integrates flex sensors to monitor finger movements and vibration motors to pro...

  • Article
  • Open Access
1,438 Views
19 Pages

Technique for Sub-mHz Low-Frequency Corner in Capacitively Coupled Instrumentation Amplifiers

  • Miguel Barrales-Romero,
  • José Luis Valtierra,
  • Esteban Tlelo-Cuautle and
  • Alejandro Díaz-Sánchez

18 December 2025

This work introduces a tunable technique to push the low-frequency corner (fL) of capacitively coupled instrumentation amplifiers (CCIAs) to the sub-mHz range for emerging biosensing applications. The proposed approach combines Complementary Transimp...

  • Article
  • Open Access
1,049 Views
18 Pages

Automatic Metadata Extraction Leveraging Large Language Models in Digital Humanities

  • Adriana Morejón,
  • Borja Navarro-Colorado,
  • Carmen García-Barceló,
  • Alberto Berenguer,
  • David Tomás and
  • Jose-Norberto Mazón

18 December 2025

DCAT-based data ecosystems, such as open data portals and data spaces, have shown their potential to foster data economy by supporting the FAIR (Findability, Accessibility, Interoperability, Reusability) principles. Nevertheless, there are domains wh...

  • Article
  • Open Access
1,399 Views
21 Pages

17 December 2025

In this article, we present a tool for matching resumes to job posts and vice versa (job post to resumes). With minor modifications, it may also be adapted to other domains where text matching is necessary. This tool may help organizations save time...

  • Article
  • Open Access
443 Views
27 Pages

17 December 2025

Existing methods for identifying Tactics, Techniques, and Procedures (TTPs) from complex cyber-attack descriptions face three core challenges: (1) severe semantic asymmetry between unstructured attack narratives and standardized TTP definitions; (2)...

  • Article
  • Open Access
555 Views
17 Pages

17 December 2025

Neuromorphic computing has emerged as a promising paradigm for edge AI systems owing to its event-driven operation and high energy efficiency. However, conventional spiking neural network (SNN) architectures often suffer from redundant computation an...

  • Article
  • Open Access
633 Views
12 Pages

A Design of High-Precision and Low-Noise High-Current Power Amplifier

  • Meng Li,
  • Zishu He,
  • Yu Cao,
  • Binghui He,
  • Bin Liu and
  • Jian Ren

17 December 2025

Addressing the limitations of existing power amplifiers, particularly in terms of accuracy and noise performance, a high-voltage and high-current power amplifier has been developed. The input stage utilizes a rail-to-rail circuit structure, allowing...

  • Article
  • Open Access
704 Views
18 Pages

17 December 2025

Industrial predictive maintenance at the edge faces persistent challenges such as extreme class imbalance, limited labeled failure data, and the need for efficient yet scalable AI models. This paper proposes a transfer learning-based edge AI framewor...

  • Article
  • Open Access
811 Views
27 Pages

17 December 2025

In this paper, we present a conceptual design framework for developing immersive learning experiences at scale with generative AI and extended reality (XR) for primary and secondary education. Based on the synthesis of current literature, our framewo...

  • Article
  • Open Access
751 Views
36 Pages

17 December 2025

Robots and artificial intelligence have revolutionized the healthcare sector. Transporting patients within hospitals is critical; however, reducing errors and inefficiencies caused by human intervention and increasing task efficiency are necessary. T...

  • Article
  • Open Access
514 Views
14 Pages

17 December 2025

This work introduces a low-cost, wearable assistive mouse designed to support digital interaction for individuals with motor impairments. The system combines inertial sensing for head-movement tracking and a pressure-based interface for simulating mo...

  • Article
  • Open Access
520 Views
15 Pages

Construction Method of Knowledge Graph of Chain Disaster in Alpine Gorge Area, China

  • Haixing Shang,
  • Lanling Jia,
  • Jiahuan Xu,
  • Jiangbo Xi and
  • Chaofeng Ren

17 December 2025

In high-mountain canyon areas, complex geological environments lead to frequent cascading disasters with unclear triggering mechanisms, posing severe threats to human life and property. Existing knowledge graph research in geology predominantly focus...

  • Review
  • Open Access
2 Citations
2,670 Views
29 Pages

17 December 2025

This systematic literature review uses the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology to assess progress in blockchain-based Federated learning (FL) and Machine Learning (ML) for detecting financial fraud...

  • Article
  • Open Access
368 Views
19 Pages

Safety-Constrained Energy-Efficient Control for High-Speed Trains Considering Wheel–Rail Interaction

  • Jia Liu,
  • Yuemiao Wang,
  • Rang Xu,
  • Yirong Liu,
  • Yaoming Huang and
  • Shaofeng Lu

17 December 2025

During train operation, the adhesion characteristics between the wheels and rails, which are influenced by driving environments and operating conditions, result in a traction force lower than the motor’s nominal output. Traditional control stra...

  • Article
  • Open Access
1 Citations
659 Views
23 Pages

17 December 2025

Vehicle trajectory prediction is a pivotal technology in intelligent transportation systems. Existing methods encounter challenges in effectively modeling lane topology and dynamic interaction relationships in complex traffic scenarios, limiting pred...

  • Article
  • Open Access
809 Views
19 Pages

17 December 2025

The rapid expansion and interdisciplinary nature of Physical Internet (PI) research have resulted in fragmented knowledge, limiting the ability of stakeholders to identify emerging trends, actionable insights and genuine research gaps. This study int...

  • Article
  • Open Access
474 Views
20 Pages

17 December 2025

In this article, the authors present an in-depth analysis of a PTAT sensor and its role as one of the analogue blocks in a test ASIC. The authors propose some modifications to the PTAT sensor to reduce output signal non-linearities observed following...

  • Article
  • Open Access
393 Views
9 Pages

Study on Total Ionizing Dose Effect of FinFETs in Low-Temperature Environments

  • Qi Zhang,
  • Jiaming Zhou,
  • Le Gao,
  • Yiping Xiao,
  • Chaoming Liu and
  • Mingxue Huo

17 December 2025

This paper focuses on FinFET transistors. The degradation characteristics of FinFET devices after total ionizing dose (TID) radiation in low-temperature environments were investigated by means of a combination of experiments and TCAD simulations. By...

  • Article
  • Open Access
398 Views
16 Pages

17 December 2025

In open wireless communication channels, the combined effects of random pulse jamming and multipath-induced time-varying fading significantly degrade the reliability and efficiency of information transmission. Particularly in highly dynamic scenarios...

  • Article
  • Open Access
442 Views
13 Pages

A Design of 1.2–3.6 GHz Power Amplifier Based on Filters of Negative Feedback Network

  • Zhenghao Yang,
  • Chucai Cai,
  • Zhengxian Meng,
  • Zhiyong Ding,
  • Quanbin Fu,
  • Xiaogang Wang and
  • Zhiqun Cheng

17 December 2025

This work proposes a broadband, high-efficiency extended continuous class-F (ECCF) power amplifier (PA) with a negative-feedback network structure. Compared with the traditional direct cascade connection of a PA and a filter, the design introduces a...

  • Article
  • Open Access
952 Views
14 Pages

Research on the Vibration Characteristics of the Core of Power Transformers Considering the Effect of Transformer Oil

  • Zhuoyan Zhong,
  • Yan Li,
  • Zhengyang Tang,
  • Zhanyang Yu,
  • Chengxiang Liu,
  • Guang Li,
  • Shun Yu and
  • Yexing Wang

16 December 2025

Taking a large single-phase generator transformer product as the research object, this paper applied the finite element simulation method to analyze the vibration characteristics of its core. Firstly, through the analysis of vibration theory, the vib...

  • Article
  • Open Access
1 Citations
567 Views
26 Pages

16 December 2025

Emergency scenarios in the Internet of Vehicles (IoV) face significant challenges due to the stringent requirements for ultra-reliable and low-latency communication under high-mobility conditions. This paper proposes a cooperative transmission framew...

  • Article
  • Open Access
311 Views
32 Pages

16 December 2025

Ensuring worker safety compliance and secure cargo transportation in complex port environments is critical for modern logistics hubs. However, conventional supervision methods, including manual inspection and passive video monitoring, suffer from lim...

  • Article
  • Open Access
1 Citations
451 Views
17 Pages

Flavouring Agent with High-Frequency Heating of Compositions Based on Natural Raw Materials

  • Eldar Kopishev,
  • Kaisarali Kadyrzhan,
  • Pavel Grigoriev,
  • Gaini Seitenova,
  • Elvira Donbaeva and
  • Ibragim Suleimenov

16 December 2025

A new type of household/therapeutic air freshener is proposed, in which beneficial components are released from compositions containing plant raw materials through induction heating under an alternating-frequency electromagnetic field. The compositio...

  • Article
  • Open Access
482 Views
22 Pages

16 December 2025

The Border Gateway Protocol (BGP) is the core protocol for inter-domain routing on the Internet. However, due to its lack of built-in security authentication mechanisms, BGP is highly vulnerable to misconfigurations or malicious route announcements,...

  • Article
  • Open Access
592 Views
23 Pages

Energy-Efficient Train Control Based on Energy Consumption Estimation Model and Deep Reinforcement Learning

  • Jia Liu,
  • Yuemiao Wang,
  • Yirong Liu,
  • Xiaoyu Li,
  • Fuwang Chen and
  • Shaofeng Lu

16 December 2025

Energy-efficient Train Control (EETC) strategy needs to meet safety, punctuality, and energy-saving requirements during train operation, and puts forward higher requirements for online use and adaptive ability. In order to meet the above requirements...

  • Article
  • Open Access
282 Views
20 Pages

Investigation of Dynamic Testing Methods for Composite Thermoelectric Devices Under Multi-Condition Loading

  • Gao Wang,
  • Zhiling Li,
  • Zhixian Li,
  • Haijian Liang,
  • Liming Qin,
  • Yang Liu,
  • Wei Zhang and
  • Xiaodong Huang

16 December 2025

To improve dynamic thermal measurement accuracy on aero-engine hot-section components, integrated heat flux/temperature thin-film sensors (TFHFs) were fabricated using micro-nano technology. This study simulated and compared the time constant calibra...

  • Article
  • Open Access
316 Views
23 Pages

A Novel Decomposition–Integration-Based Transformer Model for Multi-Scale Electricity Demand Prediction

  • Xiang Yu,
  • Dong Wang,
  • Manlin Shen,
  • Yong Deng,
  • Haoyue Liu,
  • Qing Liu,
  • Luyang Hou and
  • Qiangbing Wang

16 December 2025

The accurate forecasting of electricity sales volumes constitutes a critical task for power system planning and operational management. Nevertheless, subject to meteorological perturbations, holiday effects, exogenous economic conditions, and endogen...

  • Article
  • Open Access
429 Views
23 Pages

16 December 2025

Deep learning (DL), a hierarchical feature extraction method, has garnered increasing attention in the remote sensing community. Recently, self-supervised learning (SSL) methods in DL have gained wide recognition due to their ability to mitigate the...

  • Article
  • Open Access
1 Citations
321 Views
24 Pages

16 December 2025

For the deep flux-weakening speed regulation of interior permanent magnet synchronous motors (IPMSMs), the conventional formula-based tuning method is highly complex. To address this issue, an IPMSM deep flux-weakening control strategy based on an ad...

  • Article
  • Open Access
511 Views
16 Pages

16 December 2025

As encrypted traffic analysis becomes increasingly vital for network security, the conventional reliance on centralized classification faces growing challenges due to data privacy regulations and data silos across heterogeneous nodes. Federated learn...

  • Article
  • Open Access
438 Views
34 Pages

16 December 2025

Wireless sensor networks (WSNs), including Software-Defined Wireless Sensors, are particularly vulnerable to Denial-of-Service (DoS) attacks. Trust models are widely acknowledged as an effective strategy to mitigate the threat of successful DoS attac...

  • Article
  • Open Access
590 Views
12 Pages

Stop Recycling the Past and Start Building for the Future: An AR Board Game Promoting Recycling and Sustainability Education

  • Ilias Logothetis,
  • Ioannis Andrianakis,
  • Antonios Stamatakis,
  • Vasiliki Eirini Chatzea and
  • Nikolas Vidakis

16 December 2025

Recycling education is important for promoting pro-environmental sustainable behavior, yet traditional approaches often lack engagement and impact, particularly among younger audiences. This study presents a digital, turn-based card strategy game des...

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Electronics - ISSN 2079-9292