检索结果-内蒙古大学图书馆

2024 advanced Fiber Laser conference, AFL 2024

作者： Zhu, Likun Zhang, Lingfan Cao, Tianyang Ji, Tianxiang Yu, Hongyang Wang, Jing China Mobile Group Design Institute Co. Ltd Beijing100080 China

ISBN: (数字)9781510688889

ISBN: (纸本)9781510688872

This paper conducts an analysis and reflection on the architecture of high-throughput satellite communication technology. Ensuring security protection, it leverages the infrastructure advantage of the civil HTS network to introduce the design of satellite virtual private networks. Four HTS network application architectures for private network applications are designed and analysis based on the security level of the satellite communication private network. The network security isolation of private network and public network has been realized, which provides reliable, credible and highly available construction ideas for different types of private network applications of high-throughput satellite communication, and It has an important significance to improve the application efficiency of high-throughput satellite communication network. © 2025 SPIE.

关键词： Satellite communication systems

来源：评论

学校读者我要写书评

暂无评论

Real-Time Indoor Target Tracking Using IoT and Wireless sensor Networks 4

Real-Time Indoor Target Tracking Using IoT and Wireless Sens...

引用

4th International conference on Sentiment Analysis and Deep Learning, ICSADL 2025

作者： Katakwar, Sachin R. Jajulwar, Kapil K. Tadas, Surekha M. Tech Communication Engineering G H Raisoni College of Engineering Nagpur India G H Raisoni College of Engineering Department of Electronics and Telecommunication Engineering Nagpur India

ISBN: (纸本)9798331523923

Indoor target tracking presents significant challenges across various fields such as security surveillance, industrial automation, and healthcare. This research paper outlines the design and implementation of a reliable direction monitoring system aimed at achieving accurate indoor target tracking using IoT and wireless sensor networks. By utilizing advanced sensor technologies and sophisticated data processing algorithms, the proposed system enables real-time monitoring and precise localization of targets within indoor spaces. The combination of IoT devices and wireless sensor networks facilitates effective data collection, analysis, and visualization, thereby improving the overall performance of the monitoring system. The results indicate that the developed system is effective in accurately tracking and localizing targets, fulfilling the essential requirement for efficient indoor direction monitoring solutions. The paper concludes with a discussion on the practical implications and potential applications of this system, emphasizing its importance in enhancing indoor target localization across diverse sectors. © 2025 IEEE.

关键词： Indoor positioning systems

来源：评论

学校读者我要写书评

暂无评论

Flexible PEDOT:PSS/PVA Temperature sensor for Cost-Effective Wearable Medical Devices 5

Flexible PEDOT:PSS/PVA Temperature Sensor for Cost-Effective...

引用

5th National and the 1st International conference on Applied Research in Electrical Engineering, AREE 2025

作者： Teymourmoghadam, Jaefar Chegini, Ebrahim Hezare Sevom Co. 7-Niloofar Sq. 1533-874-417 Tehran Iran Shahid Sattari Aeronautical University of Science and Technology Electrical Engineering Department Tehran Iran

ISBN: (纸本)9798350377170

The development of flexible and biocompatible temperature sensors is critical for wearable healthcare applications, enabling continuous and non-invasive body temperature monitoring. This paper presents a temperature sensor based on a PEDOT:PSS/PVA composite fabricated using a straightforward drop-casting method encapsulated with polydimethylsiloxane (PDMS) for enhanced durability and biocompatibility. The device is based on the negative temperature coefficient (NTC) charateristics of the fabricated composite polymer, facilitating accurate measurement of temperature alterations. The fabricated sensor demonstrates consistent performance across a physiological temperature range (32°C-40°C), achieving a temperature coefficient of resistance (TCR) of 0.68%°. Measurements show a stable decrease in resistance when the sensor is in touch with human skin, reflecting its sensitivity to skin temperature changes. Experimental results show that the resistance returned to its initial baseline;highlighting the repeatability of the sensor and its reliability for dynamic monitoring. The encapsulation with PDMS further enhances the flexibility of the sensor and protects it against environmental hazards while maintaining its electrical and mechanical performance intact. Compared to existing flexible temperature sensors, this device offers a practical balance of sensitivity, flexibility, and ease of fabrication. Its simple design and scalable fabrication make it suitable for various wearable medical applications, including fever detection, thermal mapping, and integration into advanced health monitoring IoT systems. This study contributes to the advancement of flexible electronics for personalized healthcare solutions. © 2025 IEEE.

关键词： Polydimethylsiloxane

来源：评论

学校读者我要写书评

暂无评论

A novel CPW-fed flexible antenna with circular polarization for enhanced vehicular communication systems

引用

RESULTS IN ENGINEERING 2025年 25卷

作者： Venkat, Vaithianathan Kumar, Om Prakash Vincent, Shweta Rajesh Kumar, D. Vel Tech Rangarajan Dr Sagunthala R&D Inst Science Dept Elect & Commun Engn Chennai India Sri Sivasubramaniya Nadar Coll Engn Dept Elect & Commun Engn Kalavakkam India Sri Manakula Vinayagar Engn Coll Dept Elect & Commun Engn Pondicherry India Vels Inst Sci Technol & Adv Studies Dept Elect & Commun Engn Chennai India Vellore Inst Technol Sch Elect Engn Vellore India Manipal Acad Higher Educ Manipal Inst Technol Dept Elect & Commun Engn Manipal 576104 India Manipal Acad Higher Educ Dept Mechatron Manipal Inst Technol Manipal 576104 India

The rapid proliferation of advanced technology and the Internet of Things (IoT) has driven significant innovation in the design and development of flexible sensor antennas. This paper introduces a novel, highly flexible coplanar waveguide (CPW)-fed antenna tailored for vehicular applications. With a compact form factor of 27.5 x 53 x 0.1 mm3, the antenna demonstrates a broad impedance bandwidth of 5.5 to 6.5 GHz and a peak gain of 4.45 dBi, making it ideal for high-performance communication systems. A thorough bending analysis under various radii reveals robust flexibility and consistent performance, showcasing the antenna's adaptability to diverse operating conditions. The fabricated prototype exhibits excellent agreement between measured and simulated results, including a 100 % axial ratio bandwidth (ARBW), ensuring optimal circular polarization. These findings confirm the antenna's efficacy and reliability, making it a strong candidate for future vehicular communication systems.

关键词： Flexible Conformal Vehicular Axial ratio Circular polarization SDG 9 SDG 11

来源：评论

学校读者我要写书评

暂无评论

Fiber-Shaped, Stretchable Strain sensors with High Linearity by One-Step Injection Molding for Structural Health Monitoring

引用

advanced FUNCTIONAL MATERIALS 2025年第0期

作者： Wang, Jingxiang Liu, Bo Li, Donghan Yuan, Jun Huang, Dongyan Zhang, Changchao Song, Wenda Wang, Cong Wang, Jingting Liu, Linpeng Han, Zhiwu Ren, Luquan Jilin Agr Univ Coll Engn Technol Changchun 130118 Peoples R China Jilin Univ Key Lab Bion Engn Minist Educ Changchun 130022 Peoples R China Cent South Univ Coll Mech & Elect Engn Changsha 410083 Peoples R China Chinese Acad Sci Chengdu Inst Biol CAS Key Lab Environm & Appl Microbiol Environm Microbiol Key Lab Sichuan Prov Chengdu 610041 Peoples R China Hong Kong Polytech Univ Dept Mech Engn Hong Kong 999077 Peoples R China

Fiber-shaped strain sensors have attracted considerable attention due to their exceptional stretchability, conductivity, and flexibility, making them promising for applications in wearable electronics, smart textiles, and structural health monitoring. However, most reported ones based on elastic conductive fibers are fabricated by blending conductive materials with polymers, lacking effective encapsulation to resist environmental interferences such as dust and water. Inspired by the myelin sheath of nerve fibers, a fiber-shaped, stretchable strain sensor featuring an elastic silicone tube is developed as the encapsulation layer and a conductive hybrid film as the sensing layer. The difference in rebound hysteresis capacity between the silicone tube and the hybrid film effectively enhances the sensor's recovery after stretching. Experimental results demonstrate that the sensors exhibit a linearity of up to 0.9958, a stretchability of 100% strain, and outstanding cyclic stability over 7 000 loading-unloading cycles. Furthermore, the sensor demonstrates multi-functionality in monitoring strain, temperature, and pressure while maintaining robust water and dust resistance. Application tests on large-scale bridges and agricultural greenhouses have validated its effectiveness in structural health monitoring, showcasing the significant potential for use in health monitoring systems. The sensor's environmental resilience facilitates its deployment in real-world scenarios by minimizing interference from external factors.

关键词： bioinspired fiber high linearity strain sensor structural health monitoring

来源：评论

学校读者我要写书评

暂无评论

Digital Entomology sensor for advanced Biodiversity Monitoring and Precision Agriculture 2nd

Digital Entomology Sensor for Advanced Biodiversity Monitori...

引用

2nd International conference on Agriculture-Centric Computation

作者： Kaur, Milanpreet Kumar, Suman Indian Inst Technol Bara Phool India

ISBN: (纸本)9783031744396;9783031744402

Insects comprise the majority of species on earth, but their population is facing a rapid decline. Many studies have highlighted the impact of excessive use of fertilizers and the effect of continuous change in farm practices on pollinator's biodiversity. To preserve their biodiversity, 24x7 monitoring of flying insects on farmland is essential. Manual observation-based traditional monitoring techniques are ineffective, time-consuming and not applicable for real-time field monitoring. To overcome these limitations, an idea is to develop a network of digital sensors on farmland for effective monitoring of biodiversity. This paper proposes the development of a Digital Entomology (DE) sensor for biodiversity surveillance at a large scale. The sensor monitors the real-time movement of airborne insects along with environmental data and processes it on the cloud for subsequent analysis. The proposed DE sensor is a solar-powered and IoT-enabled processor device suitable for deployment at remote locations. The local management of the sensor is facilitated through the Device Manager Portal (DMP) for accessing device configurations and enabling data downloads via a local Wi-Fi hotspot. The inclusion of over-the-air updates (OTA) capability enables the management and updates of sensors from a location that can be far away from where it is deployed. The proposed DE precisely detects the pollinator's movement with a high accuracy during testing in farmlands which makes it superior to other existing systems available in the market.

关键词： Digital Entomologist sensor OTA sensor biodiversity

来源：评论

学校读者我要写书评

暂无评论

Fully integrated multi-mode optoelectronic memristor array for diversified in-sensor computing

引用

NATURE NANOTECHNOLOGY 2025年第1期20卷 1-11页

作者： Huang, Heyi Liang, xiangpeng Wang, Yuyan Tang, Jianshi Li, Yuankun Du, Yiwei Sun, Wen Zhang, Jianing Yao, Peng Mou, xing xu, Feng Zhang, Jinzhi Lu, Yuyao Liu, Zhengwu Wang, Jianlin Jiang, Zhixing Hu, Ruofei Wang, Ze Zhang, Qingtian Gao, Bin Bai, xuedong Fang, Lu Dai, Qionghai Yin, Huaxiang Qian, He Wu, Huaqiang Tsinghua Univ Beijing Innovat Ctr Integrated Circuits Sch Integrated Circuits Beijing Peoples R China Tsinghua Univ Beijing Natl Res Ctr Informat Sci & Technol Beijing Peoples R China Chinese Acad Sci Integrated Circuit Adv Proc R&D Ctr Inst Microelect State Key Lab Fabricat Technol Integrated Circuits Beijing Peoples R China Chinese Acad Sci Inst Microelect Key Lab Fabricat Technol Integrated Circuits Beijing Peoples R China Tsinghua Univ Dept Elect Engn Beijing Peoples R China Chinese Acad Sci Inst Phys Beijing Natl Lab Condensed Matter Phys Beijing Peoples R China

In-sensor computing, which integrates sensing, memory and processing functions, has shown substantial potential in artificial vision systems. However, large-scale monolithic integration of in-sensor computing based on emerging devices with complementary metal-oxide-semiconductor (CMOS) circuits remains challenging, lacking functional demonstrations at the hardware level. Here we report a fully integrated 1-kb array with 128 x 8 one-transistor one-optoelectronic memristor (OEM) cells and silicon CMOS circuits, which features configurable multi-mode functionality encompassing three different modes of electronic memristor, dynamic OEM and non-volatile OEM (NV-OEM). These modes are configured by modulating the charge density within the oxygen vacancies via synergistic optical and electrical operations, as confirmed by differential phase-contrast scanning transmission electron microscopy. Using this OEM system, three visual processing tasks are demonstrated: image sensory pre-processing with a recognition accuracy enhanced from 85.7% to 96.1% by the NV-OEM mode, more advanced object tracking with 96.1% accuracy using both dynamic OEM and NV-OEM modes and human motion recognition with a fully OEM-based in-sensor reservoir computing system achieving 91.2% accuracy. A system-level benchmark further shows that it consumes over 20 times less energy than graphics processing units. By monolithically integrating the multi-functional OEMs with Si CMOS, this work provides a cost-effective platform for diverse in-sensor computing applications. This study reports a fully integrated 128 x 8 optoelectronic memristor array with Si complementary metal-oxide-semiconductor circuits, featuring configurable multi-mode functionality. It demonstrates diversified in-sensor computing tasks and consumes 20 times less energy than GPUs.

关键词： CMOS integrated circuits

来源：评论

学校读者我要写书评

暂无评论

A Self-Assembled Flexible Strain and Temperature sensor based on the Microstructure of Pyramids with High Elasticity, Temperature Sensitivity and Wide Range 38

A Self-Assembled Flexible Strain and Temperature Sensor base...

引用

38th IEEE International conference on Micro Electro Mechanical systems, MEMS 2025

作者： Yu, Yangtao Yan, Bo Cui, Wenbo Li, Mengqiu Li, Chenyuan Zang, Faheng Yang, Zhuoqing Shanghai Jiao Tong University National Key Laboratory of Advanced Micro and Nano Manufacture Technology Shanghai China Shanghai Jiao Tong University School of Electronic Information and Electrical Engineering Department of Micro/Nano Electronics Shanghai China Harbin Institute of Technology School of Electronics and Information Engineering Harbin China

ISBN: (纸本)9798331508890

Polymers have been extensively studied in the field of flexible sensors for wearable electronics. However, polymer-based flexible sensors still face great challenges in terms of sensitivity, sensing range and stretchable properties. This paper reports a novel self-assembled flexible strain and temperature sensor, constructed from NiO molecular spheres assembled between Mxene flakes. This sensor exhibits exceptional temperature sensitivity, with a sensitivity up to -15.11%°C-1. It operates a broad temperature range(-20~60°C) and boasts a high measurement gauge factor(GF) of 6.57, along with a significant elongation at break exceeding 572%. Additionally, the sensor demonstrates an ultrahigh tensile strength of over 45 MPa. The microstructure of the sensor, featuring pyramidal formations, facilitates rapid testing capabilities. Furtherly, breathing cycle test under 0°C was performed, showing robust reliability. Furthermore, an array sensing circuit has been developed and designed to precisely measure spatial temperature distributions, enhancing utility of the sensor in various applications. © 2025 IEEE.

关键词： Tensile testing

来源：评论

学校读者我要写书评

暂无评论

Development of a Four-Axis Force sensor for Center of Gravity Estimation Using Tree-Based Machine Learning Models

引用

IEEE sensorS JOURNAL 2025年第9期25卷 14728-14739页

作者： Ahmad, Anton Royanto Meligy, Rowida Mekid, Samir King Fahd Univ Petroleum& Minerals Interdisciplinary Res Ctr Intelligent Mfg & Robot Dhahran 31261 Saudi Arabia

State-of-the-art center-of-gravity (CoG) estimation methods often face accuracy limitations due to significant errors introduced by commercial force sensors. In addition, these methods typically require more than three poses and rely on complex matrices and equations, leading to prolonged computational times. This study introduces an advanced sensor system for precise CoG determination that requires only two poses, integrating a novel four-axis force sensor with a machine learning (ML) model. The sensor design is optimized based on the Timoshenko beam theory and validated through finite element analysis (FEA) and experimentation, achieving average measurement errors below 0.82% and interference errors under 0.71%, demonstrating its accuracy and reliability. The ML dataset comprises approximately 391000 data points, utilizing 12 input variables to predict CoG represented by four variables. Various tree-based ML models-including decision tree (DL), random forest (RF), extra trees (ETs), extreme gradient boosting (xGBoost), and light gradient boosting machine (LightGBM)-were evaluated, with hyperparameter tuning performed using Optuna and Bayesian optimization. The results demonstrated that all the developed ML models effectively captured the underlying patterns in the data, as evidenced by evaluation metrics. Among these, the ET model outperformed the others in terms of accuracy and reliability, as indicated by its lowest mean absolute error (MAE) of 0.000 N for weight estimation and 0.009 mm for position estimation. These findings underscore the potential of the proposed system and model combination as a highly efficient and scalable solution for precise CoG estimation, with significant implications for industrial and robotic applications.

关键词： sensors Mathematical models Estimation Strain Strain measurement Accuracy Force measurement Random forests Robot sensing systems Center of gravity (CoG) extra trees (ETs) force sensor machine learning (ML) optimization robotics Timoshenko beam theory Timoshenko beam theory

来源：评论

学校读者我要写书评

暂无评论

Paving the Way: Advancing V2x Safety Through Innovative Attack Generation and Analysis Framework (V2x-SAF) 20th

Paving the Way: Advancing V2X Safety Through Innovative Atta...

引用

20th International conference on Information systems Security

作者： Tomar, Shubham Tripathi, Meenakshi Malaviya Natl Inst Technol Jaipur Rajasthan India

ISBN: (纸本)9783031800191;9783031800207

Vehicle-to-Everything (V2x) communication is crucial for the advancement of modern transportation systems, enabling real-time, dependable, and actionable data exchange. This technology facilitates the dissemination of Basic Safety Messages (BSMs) between vehicles and infrastructure, thereby enhancing safety, mobility, and environmental applications. Ensuring the integrity and accuracy of V2x data is vital for effective decision-making. This paper leverages the VEINS simulation framework to introduce 25 new sophisticated attacks aimed at four newly developed safety applications. These applications have been meticulously developed from scratch. Moreover, we introduce a multi-label attack generation technique, enabling multiple simultaneous attacks within a single data packet. For instance, coordinated attacks where speed adjustments are synchronized with changes in acceleration, increasing their complexity and detection difficulty. Central to our work are the advanced detection mechanisms designed to operate on Roadside Units (RSUs). These mechanisms employ trained algorithms to identify and neutralize malicious packets in real-time simulations, significantly bolstering the security of V2x systems. This comprehensive framework not only aims to reinforce the security infrastructure of V2x networks but also to guide standardization efforts and inform deployment strategies. Additionally, the implementation of digital certificates for digital signatures serves as a primary defense against malicious entities, ensuring the authenticity and integrity of V2x communications. Our objective is to provide the security community with an effective tool for developing a resilient and secure V2x ecosystem.

关键词： Vehicle-to-Everything (V2x) Safety applications Detection Mechanisms

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：