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Sensors, Volume 25, Issue 17

2025 September-1 - 392 articles

Cover Story: Suspended Microchannel Resonators are versatile tools for measuring mass, density, and viscosity. The piezoelectric transduction of the devices is favoured as it offers on-chip integration, low energy dissipation, and linear response. PZT and AlN are the two most commonly used materials for piezoelectric transduction. While PZT offers higher efficiency, it has the disadvantage of containing lead. Alternatives are hence sought through doping of the AlN. This work investigates the use of Al0.6Sc0.4N thin films for SMR transduction, with selected thicknesses tailored to our sensing application. By integrating the piezoelectric stack into low-stress silicon nitride beam resonators, we investigate the impact of different fabrication and deposition parameters and benchmark the AlScN thin films against their well-established AlN predecessor. View this paper
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Articles (392)

  • Article
  • Open Access
1 Citations
2,500 Views
19 Pages

Non-Contact Heart Rate Variability Monitoring with FMCW Radar via a Novel Signal Processing Algorithm

  • Guangyu Cui,
  • Yujie Wang,
  • Xinyi Zhang,
  • Jiale Li,
  • Xinfeng Liu,
  • Bijie Li,
  • Jiayi Wang and
  • Quan Zhang

8 September 2025

Heart rate variability (HRV), which quantitatively characterizes fluctuations in beat-to-beat intervals, serves as a critical indicator of cardiovascular and autonomic nervous system health. The inherent ability of non-contact methods to eliminate th...

  • Article
  • Open Access
1 Citations
2,018 Views
28 Pages

8 September 2025

The issue of in-orbit optimal safe surrounding control for service satellite (SSat) formation against a huge unknown target satellite (TSat) with specific structures is solved by using relative measurements only, and an optimal cooperative safe surro...

  • Article
  • Open Access
1 Citations
1,544 Views
24 Pages

Online Centralized MPC for Lane Merging in Vehicle Platoons

  • Shila Alizadehghobadi,
  • Mukesh Singhal and
  • Reza Ehsani

8 September 2025

In the context of autonomous vehicles, proper lane merging is critical as it can reduce the traffic bottleneck and lead to safer road transportation. To obtain a collision-free and efficient lane merging, advanced control algorithms need to be design...

  • Communication
  • Open Access
904 Views
15 Pages

8 September 2025

To tackle the challenges of complex construction environment interference (e.g., lighting variations, occlusion, and marker contamination) and the demand for high-precision alignment during the hoisting process of bridge-erecting machines, this paper...

  • Article
  • Open Access
1,938 Views
20 Pages

8 September 2025

Applying pre-trained medical deep learning segmentation models to out-of-domain images often yields predictions of insufficient quality. In this study, we propose using a robust generalizing descriptor, along with augmentation, to enable domain-gener...

  • Article
  • Open Access
3 Citations
1,821 Views
19 Pages

Random Access Preamble Design for 6G Satellite–Terrestrial Integrated Communication Systems

  • Min Hua,
  • Zhongqiu Wu,
  • Cong Zhang,
  • Zeyang Xu,
  • Xiaoming Liu and
  • Wen Zhou

8 September 2025

Satellite–terrestrial integrated communication systems (STICSs) are envisioned to provide ubiquitous, seamless connectivity in next-generation (6G) wireless communication networks for massive-scale Internet of Things (IoT) deployments. This glo...

  • Article
  • Open Access
1,072 Views
19 Pages

8 September 2025

Ultra-high-resolution synthetic aperture radar (SAR) has important applications in military and civilian fields. However, the acquisition of high-resolution SAR imagery poses considerable processing challenges, including limitations in traditional sl...

  • Article
  • Open Access
1,106 Views
31 Pages

8 September 2025

This study proposes a real-time path generation method called the Gradient-based Time-extended Potential Field (GT-PF) for cooperative autonomous driving environments. The proposed approach models the road environment and dynamic obstacles as a time-...

  • Article
  • Open Access
2,211 Views
33 Pages

8 September 2025

Image classification and segmentation are important tasks in computer vision. ResNet and U-Net are representative networks for image classification and image segmentation, respectively. Although many scholars used to fuse these two networks, most int...

  • Article
  • Open Access
1,399 Views
25 Pages

8 September 2025

The Rapidly-exploring Random Tree Star (RRT*) algorithm is widely applied in robotic manipulator path planning, yet it does not directly consider motion control, where abrupt changes may cause shocks and vibrations, reducing accuracy and stability. T...

  • Article
  • Open Access
1 Citations
1,191 Views
20 Pages

FM-Net: A New Method for Detecting Smoke and Flames

  • Jingwu Wang,
  • Yuan Yao,
  • Yinuo Huo and
  • Jinfu Guan

8 September 2025

Aiming at the core problem of high false and missed alarm rate and insufficient interference resistance of existing smoke and fire detection algorithms in complex scenes, this paper proposes a target detection network based on improved feature pyrami...

  • Article
  • Open Access
1 Citations
1,535 Views
20 Pages

8 September 2025

This paper proposes a novel wideband high-frequency (HF) communication system supporting video transmission based on non-contiguous orthogonal frequency division multiplexing (NC-OFDM) and probabilistic shaping (PS). The HF spectrum is currently very...

  • Article
  • Open Access
3,569 Views
20 Pages

8 September 2025

Due to the difficulty of achieving absolutely precise coaxial installation of measurement components, a coaxial error will occur between the measurement axis of the sensor and that of the electronic compass when conducting the measurement of the airb...

  • Article
  • Open Access
1,407 Views
13 Pages

8 September 2025

Three-dimensional (3D) motion capture is inaccessible, and the Microsoft Kinect is an alternative to measure surrogates of knee valgus that may contribute to anterior cruciate ligament (ACL) injury risk. We evaluated the influence of sex and body siz...

  • Article
  • Open Access
1,715 Views
23 Pages

8 September 2025

The resource-constrained nature of Internet of Things (IoT) devices necessitates authentication mechanisms built upon lightweight cryptographic primitives, such as symmetric key algorithms and hash functions. In response to demands for user anonymity...

  • Article
  • Open Access
1,306 Views
15 Pages

8 September 2025

This study presents a flame detection model that is based on real experimental data that were collected during turbopump hot-fire tests of a liquid rocket engine. In these tests, a MEMRECAM ACS-1 M40 high-speed camera—serving as an optical sens...

  • Article
  • Open Access
1 Citations
1,303 Views
18 Pages

8 September 2025

The article presents Modified Scaled Adaptive Daqrouq Wavelet (MSADW) as an autonomous wavelet framework to overcome the analysis obstacles of traditional wavelets (Morlet and Daubechies) for signals with non-stationary characteristics. MSADW adjusts...

  • Article
  • Open Access
2,893 Views
20 Pages

Research on Takeover Safety of Intelligent Vehicles Based on Accident Scenarios in Real-Vehicle Testing

  • Pingfei Li,
  • Meiling Zhou,
  • Chang Xu,
  • He Li,
  • Wenhao Hu,
  • Zhengping Tan,
  • Lingyun Xiao,
  • Xiaojun Mou and
  • Hao Feng

7 September 2025

With the increasing emergence of intelligent vehicles, novel accident patterns have gradually emerged. In human–machine cooperative driving (HMCD) states, despite driving automation systems being capable of controlling lateral and longitudinal...

  • Article
  • Open Access
2,959 Views
21 Pages

7 September 2025

Underestimation of PM2.5 emissions from the agricultural sector persists as a major difficulty for air quality studies, partly because of underutilization of high-resolution observation platforms for constructing a global emissions inventory. Coarse-...

  • Article
  • Open Access
3 Citations
1,740 Views
17 Pages

GenAI-Based Digital Twins Aided Data Augmentation Increases Accuracy in Real-Time Cokurtosis-Based Anomaly Detection of Wearable Data

  • Methun Kamruzzaman,
  • Jorge S. Salinas,
  • Hemanth Kolla,
  • Kenneth L. Sale,
  • Uma Balakrishnan and
  • Kunal Poorey

7 September 2025

Early detection of potential infectious disease outbreaks is crucial for developing effective interventions. In this study, we introduce advanced anomaly detection methods tailored for health datasets collected from wearables, offering insights at bo...

  • Article
  • Open Access
1,679 Views
25 Pages

CrackNet-Weather: An Effective Pavement Crack Detection Method Under Adverse Weather Conditions

  • Wei Wang,
  • Xiaoru Yu,
  • Bin Jing,
  • Ziqi Tang,
  • Wei Zhang,
  • Shengyu Wang,
  • Yao Xiao,
  • Shu Li and
  • Liping Yang

7 September 2025

Accurate pavement crack detection under adverse weather conditions is essential for road safety and effective pavement maintenance. However, factors such as reduced visibility, background noise, and irregular crack morphology make this task particula...

  • Article
  • Open Access
3 Citations
1,548 Views
19 Pages

7 September 2025

During the working process of the wheel loader, the repeated cycle of the shoveling and unloading process will produce an impact, so the loader is under a cyclic load for a long time, which leads to the frequent failure of its main parts. In this stu...

  • Article
  • Open Access
2 Citations
1,530 Views
19 Pages

Maize Kernel Batch Counting System Based on YOLOv8-ByteTrack

  • Ran Li,
  • Qiming Liu,
  • Miao Wang,
  • Yuchen Su,
  • Chen Li,
  • Mingxiong Ou and
  • Lu Liu

7 September 2025

In recent years, the application of deep learning technology in the field of food engineering has developed rapidly. As an essential food raw material and processing target, the number of kernels per maize plant is a critical indicator for assessing...

  • Article
  • Open Access
1,370 Views
20 Pages

7 September 2025

This paper focuses on two-dimensional (2-D) direction-of-arrival (DOA) estimation for an L-shaped array. While recent studies have explored sparse methods for this problem, most exploit only the cross-correlation matrix, neglecting self-correlation i...

  • Article
  • Open Access
1,428 Views
17 Pages

7 September 2025

Soybean rust, caused by the fungus Phakopsora pachyrhizi, is recognized as the most devastating disease affecting soybean crops worldwide. In practical applications, performing accurate Phakopsora pachyrhizi segmentation (PPS) is essential for elucid...

  • Article
  • Open Access
1,513 Views
15 Pages

7 September 2025

Multi-temporal remote sensing image matching plays a crucial role in tasks such as detecting changes in urban buildings, monitoring agriculture, and assessing ecological dynamics. Due to temporal variations in images, significant changes in land feat...

  • Article
  • Open Access
2,552 Views
12 Pages

Validity and Reliability of a Novel AI-Based System in Athletic Performance Assessment: The Case of DeepSport

  • Burakhan Aydemir,
  • Muhammed Talha Aydoğan,
  • Emre Boz,
  • Murat Kul,
  • Fatih Kırkbir and
  • Abdullah Bora Özkara

7 September 2025

This study aimed to examine the validity and reliability of the AI-based DeepSport application by comparing its outcomes with those from the reference device, OptoJump. The primary dependent variables measured were jump height and anaerobic power dur...

  • Article
  • Open Access
4 Citations
7,099 Views
33 Pages

6 September 2025

The growing demand for electricity and the urgent need to reduce environmental impact have made sustainable energy utilization a global priority. Street lighting, as a significant consumer of urban electricity, requires innovative solutions to enhanc...

  • Article
  • Open Access
1 Citations
2,655 Views
29 Pages

6 September 2025

With the widespread deployment of 5G technology, high-precision positioning in global navigation satellite system (GNSS)-denied environments is a critical yet challenging task for emerging 5G applications, enabling enhanced spatial resolution, real-t...

  • Article
  • Open Access
1,685 Views
15 Pages

A Scalable Sub-Picosecond TDC Based on Analog Sampling of Dual-Phase Signals from a Free-Running Oscillator

  • Roberto Cardella,
  • Luca Iodice,
  • Lorenzo Paolozzi,
  • Thanushan Kugathasan,
  • Antonio Picardi,
  • Carlo Alberto Fenoglio,
  • Pierpaolo Valerio,
  • Fulvio Martinelli,
  • Roberto Cardarelli and
  • Giuseppe Iacobucci

6 September 2025

This work presents a novel time-to-digital converter based on the analog sampling of dual-phase periodic signals generated from a free-running oscillator. A proof-of-concept ASIC, implemented in 130 nm CMOS technology, achieves an average single-shot...

  • Article
  • Open Access
1,505 Views
18 Pages

6 September 2025

Wet cracks caused by leakage often exhibit visual and structural distortions due to surface contamination, salt crystallization, and corrosion byproducts. These factors significantly degrade the performance of sensor- and vision-based crack detection...

  • Article
  • Open Access
1 Citations
1,894 Views
13 Pages

6 September 2025

Despite its wide acceptance, one of the most critical limitations of Terahertz wave technology is its high sensitivity to moisture. This limitation can, in turn, be exploited for use in moisture detection applications. This work presents a quantitati...

  • Article
  • Open Access
1,797 Views
28 Pages

Semantic Path-Guided Remote Sensing Recommendation for Natural Disasters Based on Knowledge Graph

  • Xiangyu Zhao,
  • Chunju Zhang,
  • Chenchen Luo,
  • Jun Zhang,
  • Chaoqun Chu,
  • Chenxi Li,
  • Yifan Pei and
  • Zhaofu Wu

6 September 2025

To address the challenges of complex task matching, limited semantic representation, and low recommendation efficiency in remote sensing data acquisition for natural disasters, this study proposes a semantic path-guided recommendation method based on...

  • Article
  • Open Access
1,522 Views
24 Pages

Home Robot Interaction Based on EEG Motor Imagery and Visual Perception Fusion

  • Tie Hua Zhou,
  • Dongsheng Li,
  • Zhiwei Jian,
  • Wei Ding and
  • Ling Wang

6 September 2025

Amid the intensification of demographic aging, home robots based on intelligent technology have shown great application potential in assisting the daily life of the elderly. This paper proposes a multimodal human–robot interaction system that i...

  • Article
  • Open Access
4,901 Views
17 Pages

6 September 2025

Detecting physical fatigue can help prevent overexertion. While typically defined at the muscle level, systemic fatigue remains less clear. Heart rate variability (HRV) reflects autonomic adaptability to physical stressors and may provide insight int...

  • Article
  • Open Access
1 Citations
1,363 Views
16 Pages

The Effects of High-Energy Carbon Co-Doping on IMB-CNM LGAD Fabrication and Performance

  • Jairo Villegas,
  • Florent Dougados,
  • Carmen Torres,
  • Pablo Fernandez-Martinez,
  • María del Carmen Jiménez-Ramos and
  • Salvador Hidalgo

6 September 2025

Over the past few years, Low-Gain Avalanche Detectors (LGADs) have demonstrated excellent timing performance, showing great potential for use in 4D tracking of high-energy charged particles. Carbon co-doping is a key factor for enhancing LGAD perform...

  • Article
  • Open Access
3 Citations
1,971 Views
29 Pages

6 September 2025

Data of operational conditions of structural components, acquired, e.g., in structural health monitoring (SHM), is of great interest to optimise products from one generation to the next, for example, by adapting them to occurring operational loads. T...

  • Article
  • Open Access
1 Citations
2,212 Views
12 Pages

6 September 2025

This study used stair-embedded force plates to investigate the effects of lower-limb muscle fatigue on dynamic postural control during stair descent in young adults. Twenty-five healthy male adults (age = 19.2 ± 1.5 years) were tested for stai...

  • Article
  • Open Access
1,552 Views
31 Pages

6 September 2025

Video denoising in extremely low-light surveillance scenarios is a challenging task in computer vision, as it suffers from harsh noise and insufficient signal to reconstruct fine details. The denoising algorithm for these scenarios encounters challen...

  • Article
  • Open Access
2,577 Views
20 Pages

6 September 2025

Synthetic data has become an increasingly important tool for semantic segmentation, where collecting large-scale annotated datasets is often costly and impractical. Prior work has leveraged computer graphics and game engines to generate training data...

  • Article
  • Open Access
1 Citations
1,718 Views
18 Pages

Inductive Sensor Characteristics for Conductivity Measurement of Non-Ferromagnetic Metals Based on Single-Layer Solenoid

  • Huan Wang,
  • Ziyi Han,
  • Yongjian Chen,
  • Shuyu Li,
  • Haoran Li,
  • Hao Shen and
  • Chunlong Xu

6 September 2025

For the measurement of electrical conductivity of metal materials, the traditional contact measurement method has a limited test range and requires periodic electronic calibration. In order to overcome the above shortcomings, this paper takes the ind...

  • Article
  • Open Access
1,584 Views
13 Pages

Design and Implementation of a Multi-Mode Telemetry Transmitter

  • Francesco Silino,
  • Fabio Dell’Acqua,
  • Anna Vizziello,
  • Diego Biz,
  • Francesco Costa and
  • Pietro Savazzi

6 September 2025

In space applications, the required levels of performance and reliability drive up hardware costs. Reducing the efforts related to device development and validation may help balance the budget. A versatile transmitter for space telemetry is implement...

  • Article
  • Open Access
3,841 Views
20 Pages

Development of Real-Time Water-Level Monitoring System for Agriculture

  • Gaukhar Borankulova,
  • Gabit Altybayev,
  • Aigul Tungatarova,
  • Bakhyt Yeraliyeva,
  • Saltanat Dulatbayeva,
  • Aslanbek Murzakhmetov and
  • Samat Bekbolatov

6 September 2025

Water resource management is critical for sustainable agriculture, especially in regions like Kazakhstan that face significant water scarcity challenges. This paper presents the development of a real-time water-level monitoring system designed to opt...

  • Article
  • Open Access
1,412 Views
22 Pages

6 September 2025

Measurement while drilling technology (MWD) has emerged as a pivotal approach for geological exploration. However, the accuracy of existing geological recognition models remains limited, primarily due to data fluctuations that result in high overlap...

  • Article
  • Open Access
1 Citations
2,818 Views
15 Pages

Detecting Diverse Seizure Types with Wrist-Worn Wearable Devices: A Comparison of Machine Learning Approaches

  • Louis Faust,
  • Jie Cui,
  • Camille Knepper,
  • Mona Nasseri,
  • Gregory Worrell and
  • Benjamin H. Brinkmann

6 September 2025

Objective: To evaluate the feasibility and effectiveness of wrist-worn wearable devices combined with machine learning (ML) approaches for detecting a diverse array of seizure types beyond generalized tonic–clonic (GTC), including focal, genera...

  • Article
  • Open Access
1 Citations
1,599 Views
15 Pages

5 September 2025

In this study, blue fluorescence carbon dots of high quantum yield (42.96%) were successfully synthesized via a one-step hydrothermal method using Pueraria residues as the precursor and urea as the nitrogen source. The preparation process was simple,...

  • Article
  • Open Access
1,854 Views
17 Pages

Limited Interchangeability of Smartwatches and Lace-Mounted IMUs for Running Gait Analysis

  • Theodor Meingast,
  • Bryson Carrier,
  • Amanda Melvin,
  • Kenneth M. Kozloff,
  • Alexandra F. DeJong Lempke and
  • Adam S. Lepley

5 September 2025

Spatiotemporal running metrics such as cadence, stride length (SL), and ground contact time (GCT) are important for assessing performance and injury risk. However, such metrics are traditionally assessed using laboratory-based tools that are often in...

  • Article
  • Open Access
1,763 Views
19 Pages

5 September 2025

Simultaneous Localization and Mapping (SLAM) systems require accurate and globally consistent mapping to ensure the long-term stable operation of robots or vehicles. However, for the commercial applications of indoor sweeping robots, the system needs...

  • Review
  • Open Access
1 Citations
3,602 Views
29 Pages

A Review of Dynamic Traffic Flow Prediction Methods for Global Energy-Efficient Route Planning

  • Pengyang Qi,
  • Chaofeng Pan,
  • Xing Xu,
  • Jian Wang,
  • Jun Liang and
  • Weiqi Zhou

5 September 2025

Urbanization and traffic congestion caused by the surge in car ownership have exacerbated energy consumption and carbon emissions, and dynamic traffic flow prediction and energy-saving route planning have become the key to solving this problem. Dynam...

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