检索结果-内蒙古大学图书馆

Joint trust-based detection and signature-based authentication technique for secure localization in underwater wireless sensor network

引用

Multimedia Tools and Applications 2025年 1-20页

作者： Kumar, Manni Goyal, Nitin Qaisi, Ramy Mohammed Aiesh Najim, Mohd Gupta, Sachin Kumar Department of Computer Science & Engineering Chandigarh University Gharuan Punjab India Department of Computer Science Engineering School of Engineering and Technology Central University of Haryana Haryana Mahendergarh123031 India Department of Electrical and Electronic Engineering College of Engineering University of Jeddah Jeddah21589 Saudi Arabia Department of Electronics and Communication Engineering Central University of Jammu UT of J&K Jammu181143 India

Ensuring secure and accurate node localization in Underwater Wireless Sensor Networks (UWSN) is a significant challenge, as conventional methods tend to neglect the security risks associated with malicious node interference. This research addresses this issue by proposing a Joint Trust-based Detection and Signature-based Authentication (JTDSA) technique, aimed at improving both the security and accuracy of node localization in UWSNs. The technique utilizes Intrusion Detection System (IDS) methods to calculate the trust values of secondary-anchor nodes (SNs), ensuring only the most trusted SNs are selected. Furthermore, a digital signature algorithm secures the Received Signal Strength (RSS) data from tampering. The method incorporates a hybrid approach combining Angle of Arrival (AoA) and RSS ranging techniques to achieve robust localization. Simulation results demonstrate that JTDSA improves localization accuracy by 4% compared to existing methods, achieving an overall accuracy of 99.2%. The technique also reduces packet drop by 35% and enhances attack detection accuracy by 3%. These results indicate that the proposed JTDSA technique offers an effective solution for secure and reliable localization in UWSNs. © The Author(s), under exclusive licence to Springer science+Business Media, LLC, part of Springer Nature 2025.

关键词： Sensor nodes

来源：评论

学校读者我要写书评

暂无评论

Exponential Synchronization for Mobile Robotic Formation: A Hybrid Dynamic Event-Triggered Intermittent Control Method

IEEE Transactions on Intelligent Vehicles

引用

IEEE Transactions on Intelligent Vehicles 2024年 1-10页

作者： Chang, Zhenyu Guo, Ying Zong, Guangdeng Qi, Wenhai Zhao, Xudong School of Control Science and Engineering Tiangong University Tianjin China School of Computer Science Beijing University of Posts and Telecommunications Beijing China School of Engineering Qufu Normal University Rizhao China Faculty of Electronic Information and Electrical Engineering Dalian University of Technology Dalian China

To address the formation tracking issue of mobile robotic systems, this paper constructs a novel hybrid dynamic event-triggered intermittent control strategy, which can achieve the exponential synchronization of the systems. Considering the limited control resources, the intermittent control method is introduced into the distributed control strategy to save resources, and the existing intermittent control model is reconstructed to describe the system model better. A hybrid dynamic event-triggered mechanism is developed by combining the dynamic event-triggered method with the time sampling strategy, eliminating the Zeno phenomenon. The control time sequences in the developed intermittent control strategy are automatically selected by the hybrid dynamic event-triggered sequences, rather than artificially designed in advance, which reduces a certain degree of design complexity. The developed control strategy effectively saves control resources while alleviating the burden of network communication. Sufficient conditions for achieving exponential synchronization formation tracking are provided, and the exponential convergence of the formation error is demonstrated through the proposed lemma. Finally, a control task of multi-mobile robots formation is presented to verify the effectiveness of the theoretical analysis. IEEE

关键词： Synchronization

来源：评论

学校读者我要写书评

暂无评论

Polarization‑entangled photon‑pair source with van der Waals 3R‑WS_(2) crystal

引用

eLight 2024年第1期4卷 99-106页

作者： Jiangang Feng Yun‑Kun Wu Ruihuan Duan Jun Wang Weijin Chen Jiazhang Qin Zheng Liu Guang‑Can Guo Xi‑Feng Ren Cheng‑Wei Qiu Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Department of Optical Science and Engineering and Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and PerceptionFudan UniversityShanghai 200433China

Ultracompact entangled photon sources are pivotal to miniaturized quantum photonic *** der Waals(vdW)nonlinear crystals promise efficient photon-pair generation and on-chip monolithic integration with nanophotonic ***,it remains challenging to generate maximally entangled Bell states of photon pairs with high purity,generation rate,and fidelity required for practical ***,we realize a polarization-entangled photon-pair source based on spontaneous parametric down conversion in an ultrathin rhombohedral tungsten disulfide(3R-WS2)*** vdW entangled photonic source exhibits a high photon-pair purity with a coincidenceto-accidental ratio of above 800,a generation rate of 31 Hz,and two maximally polarization-entangled Bell states with fidelities exceeding 0.93 and entanglement degree over *** results stem from scalable optical nonlinearity,enhanced second-order susceptibility by electronic transitions,and a well-defined symmetry-enabled selection rule inherent in *** polarization entangled photon source can be integrated with photonic structures for generating more complex entangled states,thus paving an avenue for advanced quantum photonic systems toward computation and metrology.

关键词： purity maximal Polarization

来源：评论

学校读者我要写书评

暂无评论

Thermography-Based Early-Stage Breast Cancer Detection Using SVM 3

Thermography-Based Early-Stage Breast Cancer Detection Using...

引用

3rd International Conference on Intelligent Data science Technologies and Applications, IDSTA 2023

作者： Zavvar, Tina Ridhawi, Ismaeel Al Abbas, Ali School of Electrical Engineering and Computer Science University of Ottawa Canada Kuwait College of Science and Technology Kuwait

ISBN: (纸本)9798350339253

With the advances in health technology, disease diagnosis and detection are becoming more accurate and efficient. The use of Machine Learning (ML) algorithms has evolved health technology to not only provide detection tools, but also predictive analytics, clinical decision support, and treatment planning. Breast cancer being one of the most common forms of cancer among women, has resulted in the development of different diagnostic tools, such as ultrasound, mammogram, and biopsy. Thermography, which is a non-invasive technique that measures heat patterns on the skin surface can be used for early-stage breast cancer detection. With ML, thermography images can be used to identify any abnormality, which could indicate the presence of cancerous cells. In this study, Support Vector Machine (SVM) is used to detect abnormality in breast thermography. Pixel-based features are extracted from the images and then fed to SVM for high accuracy abnormality detection. The results are compared with other diagnostic tools, including, ultrasound and mammography. Experimental results show that the proposed solution achieves an accuracy of 68.90% and sensitivity of 95.45% by using features optimized with Principal Component Analysis (PCA) algorithms. © 2023 IEEE.

关键词： Support vector machines

来源：评论

学校读者我要写书评

暂无评论

Task Offloading and Approximate Computing in Solar Powered IoT Networks

IEEE Networking Letters

引用

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

来源：评论

学校读者我要写书评

暂无评论

Enhanced Bottom Anode Monitoring in DC Electric Arc Furnaces Using Fiber-Optic Sensors

Enhanced Bottom Anode Monitoring in DC Electric Arc Furnaces...

引用

AISTech 2024 Iron and Steel technology Conference

作者： Mekala, Yeshwanth Reddy Inalegwu, Ogbole C. Saha, Rony Kumer Mumtaz, Farhan Gerald, Rex E. Smith, Jeffrey D. Huang, Jie O’Malley, Ronald J. Department of Materials Science and Engineering Missouri University of Science and Technology RollaMO65409 United States Department of Electrical and Computer Engineering Missouri University of Science and Technology RollaMO65409 United States

ISBN: (纸本)9780930767259

A pin style bottom anode employs conductive steel rods that serve as the pathway for the high electrical power through rammed refractory at the bottom of a DC Electric Arc Furnace (EAF). Anode wear during operation is important to monitor, as anode replacement is expensive and impacts EAF productivity. Liquid steel penetration into the un-sintered refractory layer can result from rapid electrical power ramp-up, dips in furnace temperature, or operating the anode for too long between EAF campaigns. In extreme cases, the liquid steel may penetrate the bottom of the furnace when anode wear progresses too close to the bottom shell, which is extremely dangerous and must be avoided. The current state of the art for monitoring bottom anode wear employs thermocouples imbedded in the anode pins at points in the anode. However, this approach is not sensitive enough to detect localized damage to the anode, especially when cracking occurs. The present work utilizes fiber optic sensors to monitor the health of the anode, by creating a real-time spatially distributed temperature map of the anode. Unlike the traditional thermocouples, these sensors can be mounted at significantly greater depths, provide distributed temperature measurements, and can withstand temperatures of up to 900°C. Additionally, they are able to perform temperature measurements with a spatial resolution of 1.3 mm at a 5 Hz acquisition rate, providing unprecedented high-density real time monitoring of anode health and increasing the efficiency, and safety of EAF operation. © 2024 by the Association for Iron & Steel technology.

关键词： Fiber optic sensors

来源：评论

学校读者我要写书评

暂无评论

Broad applications of sensors based on laser-scribed graphene

引用

Light(science & Applications) 2023年第8期12卷 1444-1445页

作者： Kuen Yao Lau Jianrong Qiu Institute of Light+X Science and Technology Faculty of Electrical Engineering and Computer ScienceNingbo University315211 NingboZhejiangChina State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China

Sensors based on graphene materials have promising applications in the fields of biology,medicine and environment etc.A laser-scribed graphene provides a versatile,low-cost,and environmental friendly method for stress... 详细信息

关键词： graphene versatile humidity

来源：评论

学校读者我要写书评

暂无评论

Improved Monitoring of the Water-Cooled Upper Shell of an Electric Arc Furnace Using Fiber-Optic Sensors

Improved Monitoring of the Water-Cooled Upper Shell of an El...

引用

AISTech 2024 Iron and Steel technology Conference

作者： Mekala, Yeshwanth Reddy Saha, Rony Kumer Inalegwu, Ogbole C. Roman, Muhammad Mumtaz, Farhan Gerald, Rex E. Smith, Jeffrey D. Huang, Jie O’Malley, Ronald J. Department of Materials Science and Engineering Missouri University of Science and Technology RollaMO65409 United States Department of Electrical and Computer Engineering Missouri University of Science and Technology RollaMO65409 United States

ISBN: (纸本)9780930767259

Modern Electric Arc Furnaces (EAF) employ ultra-high-power electrical input to minimize the scrap melting time. Increasing the operating voltage increases arc length and enhances the active power, but radiation energy losses also increase if the arc is exposed to the furnace, resulting in a drop in thermal efficiency and causing hot spots in the furnace. The present work introduces a novel approach using fiber optic sensors to create a real-time, spatially distributed thermal map of the EAF's water-cooled upper shell, which can be helpful in detecting operational anomalies and improving EAF energy efficiency. Lab-scale testing using fiber-optic sensors on a spray-cooled steel plate achieved a remarkable spatial resolution of 2.3mm and a 1Hz data acquisition rate, paving the way for industrial-scale implementation. These sensors, providing reliable spatial temperature measurements, offer early detection of sidewall hot spots and precise adjustments to voltage and burner positioning based on granular data from the scrap melting stages. This study strongly advocates the use of fiber optic sensors in EAFs, would enhance efficiency and safety in steelmaking. © 2024 by the Association for Iron & Steel technology.

关键词： Fiber optic sensors

来源：评论

学校读者我要写书评

暂无评论

Releasing Residual Stress in Metal-Coated Fibers Through Heat Treatment Process for Distributed High-Temperature Sensing Applications

Releasing Residual Stress in Metal-Coated Fibers Through Hea...

引用

2024 Conference on Lasers and Electro-Optics, CLEO 2024

作者： Dey, Koustav Saha, Rony Kumar Narasimman, S. Zhang, Bohong Mumtaz, Farhan O'Malley, Roanld J. Smith, Jeffrey D. Gerald, Rex E. Huang, Jie Department of Electrical and Computer Engineering Missouri University of Science and Technology RollaMO65409 United States Department of Material Science and Engineering Missouri University of Science and Technology RollaMO65409 United States

The study investigates a refined heat treatment methodology tailored for commercial metal-coated optical fibers, with the objective of accurately reducing residual stress to prime them for use in distributed sensing a... 详细信息

ISBN: (纸本)9781957171395

关键词： Fiber lasers

来源：评论

学校读者我要写书评

暂无评论

Quality-Relevant Modeling and Monitoring of Industrial Cyber-Physical Systems: The Semi-Supervised Dynamic Latent Variable Models

IEEE Transactions on Industrial Cyber-Physical Systems

引用

IEEE Transactions on Industrial Cyber-Physical Systems 2025年 3卷 39-47页

作者： Zhou, Le Wang, Yaoxin Wu, Yuanqing He, Shenghuang Song, Zhihuan Zhejiang University of Science and Technology Department of Automation and Electrical Engineering Hangzhou310023 China Guangdong University of Technology Department of Automation Guangzhou510006 China Dongguan University of Technology Department of Computer Science and Technology Dongguan523808 China Ningbo Industrial Internet Institute Ningbo315012 China Zhejiang University Department of Control Science and Engineering Hangzhou310027 China

In modern industrial cyber-physical systems, a mass of process variables has been obtained by the high-sampling online sensors. Meanwhile, the key quality indexes are usually obtained infrequently from the laboratory. Hence, these quality variables are with low sampling rate. To avail of the complete process and quality variables with various sampling rates in the dynamic processes, a set of semi-supervised dynamic latent variable models are proposed for dynamic modeling and quality-relevant monitoring. The proposed models have built a unified structure to consider both the auto-correlations and cross-correlations between the process and quality variables with unbalanced sampling sizes. Hence, the feature extraction of the time series data is dynamically adjusted under the guidance of the quality variables. Then, the quality-relevant monitoring schemes are proposed, which is validated by a numerical case and an actual wastewater treatment process. © 2024 IEEE. All rights reserved.

关键词： Indexes Probabilistic logic Kalman filters Noise Cyber-physical systems Analytical models Parameter estimation Time series analysis Process monitoring Numerical models

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：