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6th International Conference on Devices, Circuits and systems, ICDCS 2022

作者： Vasanth Raj, P.T. Vijayaraj, A. Dhanagopal, R. Suresh Kumar, R. Ayyadurai, A. Chennai Institute of Technology Center for System Design Chennai India Vignan's Foundation for Science Technology and Research Department of Information Technology AP Guntur India SRM Institute of Science and Technology Ramapuram Department of Ece Chennai India

ISBN: (纸本)9781665480949

Recently, the need for MRI images in clinical applications has skyrocketed. While this is very desired, a trade-off will exist between acquisition speed, resolution, and noise. By and large, MRI pictures have a higher in-plane resolution than through-plane images. It is impossible to get high frequency information from these pictures through through-plane and it cannot be derived by interpolation either. To address this issue, the super resolution (SR) approach was created to improve spatial resolution. SR approaches learn the transition from lowresolution (LR) to high-resolution (HR) pictures using a training set. HR atlas pictures are not readily accessible for MRI for a variety of reasons. In this article, we offer a self-SR method that is not reliant on an external training data. However, it is possible to bypass this limitation using HR pictures, which are dependant upon obtaining LR images. To create training sets, several forms of distorted input pictures are employed. To estimate the HR picture, the trained set is applied to the input image. When compared to existing self-super-resolution (SSR) approaches, the suggested result improves through-plane resolution significantly. © 2022 IEEE.

关键词： Training Interpolation Circuits and systems Magnetic resonance imaging Training data Magnetic resonance High frequency

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Multi-source Navigation Sensor Backend Information Fusion technology Based on D-S Evidence Theory 9

Multi-source Navigation Sensor Backend Information Fusion Te...

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9th International Symposium on system Security, Safety, and Reliability, ISSSR 2023

作者： Liu, Senzao Li, Kunpeng Mi, Jinhua Huang, Rui Guo, Tong University of Electronic Science and Technology of China School of Automation Engineering Sichuan Chengdu China University of Electronic Science and Technology of China Center for System Reliability and Safety Sichuan Chengdu China AVIC Chengdu Aircraft Design and Research Institute Sichuan Chengdu China

ISBN: (纸本)9798350302479

Multi-source navigation sensors can provide high-precision navigation solutions. To achieve back-end information fusion, this paper presents a fault detection algorithm and an information fusion algorithm. The fault detection algorithm is designed to detect anomalies in multisource navigation sensor data, while the information fusion algorithm is used to integrate data from multiple sensors for obtaining more accurate and reliable navigation information. These two algorithms are based on the D-S evidence theory and Murphy's improved method, which effectively detect and judge abnormal data and handle conflicts and uncertainties among multiple sources of information, thereby outputting more reliable navigation information. By applying the algorithms to actual flight data, this study demonstrates their effectiveness in abnormal situations, such as abnormal inertial attitude angle, constant difference between inertial pitch angle and heading pitch angle, and sudden changes in GPS output position information. © 2023 IEEE.

关键词： Fault detection

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A Feedback-inspired Super-network Shrinking Framework for Flexible Neural Architecture Search 38

A Feedback-inspired Super-network Shrinking Framework for Fl...

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38th Youth Academic Annual Conference of Chinese Association of Automation, YAC 2023

作者： Rao, Xuan Zhao, Bo Liu, Derong Lin, Haowei Guangdong University of Technology School of Automation Guangzhou510006 China Beijing Normal University School of Systems Science Beijing100875 China Southern University of Science and Technology School of System Design and Intelligent Manufacturing Shenzhen518055 China Guangdong University of Technology School of Advanced Manufacturing Jieyang522000 China

ISBN: (纸本)9798350303636

Neural architecture search (NAS) has been proved to be effective in automatically designing the architectures of deep neural networks (DNNs). Currently, most of cell-based NAS methods are subjected to the prior rules of human experts on neural architectures (e.g., the topology-sharing strategy), but it is not in line with the sustainable development of automated machine learning (Auto-ML). In this paper, a feedback-inspired super-network shrinking (FSS) method is developed under the framework of differentiable architecture search (DARTS) such that neural networks with flexible architectures are derived without strong reliance on human experts. In FSS, the information entropy is utilized to measure the sparsity of the super-network and an adaptive shrinking method is developed to balance the cross-entropy and the sparsity entropy. The experiments on CIFAR10/100 demonstrate that the proposed ESF derives a set of neural architectures with competitive performance-computation trade-offs in one single search procedure, which is superior to the state-of-the-art NAS methods. © 2023 IEEE.

关键词： Auto-ML DARTS Deep learning neural architecture search super-network shrinking

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LoRa Faceted Device Assisting Women's Safety 6

LoRa Faceted Device Assisting Women's Safety

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6th International Conference on Devices, Circuits and systems, ICDCS 2022

作者： Suresh Kumar, S.K. Ayyadurai, A. Raj Pt, Vasanth Vijayaraj, V. Dhanagopal, D. Chennai Institute of Technology Center for System Design Chennai India SRM Institute of Science and Technology Department of Ece Chennai India Vignan's Foundation for Science Technology & Research Dept. of Information Technology Andhra Pradesh India

ISBN: (纸本)9781665480949

Today's situation, the necessary examination of every young girl's mind, taking into account the constant increase in issues of women's uprising in the past, is her safety. To help settle this issue we propose a LoRa based women wellbeing system. This gadget comprises of a framework that guarantees double cautions if she thinks she is in a difficult situation. This framework can be turned on by a lady on the off chance that she even figures she would be in a difficult situation. In a panic alarming framework, if the lady is hit on the head from behind, she may never find an opportunity to press the emergency signal and nobody will realize she is in a difficult situation. Our framework tackles this issue. This gadget is to be turned on ahead of time by a lady in the event that she is strolling on a forlorn street or some dull rear entryway or any far off territory. Just the lady validated to the gadgets can begin the framework by finger impression check. When begun the gadgets requires the lady to continually check her finger on the framework like clockwork, else the framework presently sends her area to the approved number through SMS. In this case regardless of whether somebody hits the lady or the lady tumbles down and get oblivious, she doesn't have to do anything, the framework consequently sends message when the fingerprint is missed. The gadget utilizes GPS sensor alongside a GS, modem, LCD display, LoRa and microcontroller based circuit to accomplish this framework. © 2022 IEEE.

关键词： Presses Microcontrollers Fingers Modems Real-time systems Liquid crystal displays Safety

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Distributed Robust Containment Control for Multi-Robot systems via Adaptive Critic designs 5

Distributed Robust Containment Control for Multi-Robot Syste...

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5th International Conference on Industrial Artificial Intelligence, IAI 2023

作者： Zhang, Yongwei Lin, Haowei Zhao, Bo Liu, Derong Guangdong University of Technology School of Automation Guangzhou510006 China Guangdong University of Technology School of Advanced Manufacturing Jieyang515200 China Beijing Normal University School of Systems Science Beijing100875 China Southern University of Science and Technology School of System Design and Intelligent Manufacturing Shenzhen518055 China

ISBN: (纸本)9798350325294

This article develops a distributed robust containment control approach for multi-robot systems via adaptive critic designs. To begin with, the distributed robust containment control problem of multi-robot systems with modeling uncertainties is transformed into an optimal containment control problem of its nominal plant by designing discounted value functions for all following robots. Hereafter, the distributed optimal containment control law is derived by solving the coupled Hamilton-Jacobi-Bellman equation of each following robot via the critic-only structure. Moreover, theoretical analysis shows that the developed adaptive critic design-based distributed robust containment control scheme guarantees the containment errors of all following robots to be asymptotically stable. Finally, the effectiveness of the present control approach is verified by simulation studies. © 2023 IEEE.

关键词： Multipurpose robots

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Unification of Multiple Bank Cards and Smart Card with Formula Based Authentication in Big Data 6

Unification of Multiple Bank Cards and Smart Card with Formu...

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6th International Conference on Devices, Circuits and systems, ICDCS 2022

作者： Vijayaraj, A. Dhanagopal, R. Suresh Kumar, R. Ayyadurai, M. Vasanth Raj, P.T. Vignan's Foundation for Science Technology & Research Dept. of Information Technology Andhra Pradesh India Chennai Institute of Technology Center for System Design Department of Ece Chennai India

ISBN: (纸本)9781665480949

Big data provides a greater space for various organizations to obtain knowledge-oriented decisions. Big data analytics would lead to an increased rate of success. Capturing, storing, searching, sharing, transferring, visualizing, querying, updating are the challenges in big data. In our proposal, the most recent developments in information management include the convergence of big data and RFID technology. We are proposing an advanced Banking, Hospital, and Passport & Ration application for our implementation. For all these four applications, RFID is used as a user identification number. User behavior is monitored through Hidden Markov Model (HMM). Formula-based authentication is used for verifying the withdrawal of money above the limit. This card can also be used as a smart card in Ration shops. Users can use this multicard in hospitals to get their information. Multi-card can also be used in airports to register travel. All the information is kept in several Cloud Servers. © 2022 IEEE.

关键词： Smart cards Time-frequency analysis Hospitals Hidden Markov models Authentication Big Data Software

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Study of the Sensing Characteristics of Irradiated Fiber Bragg Gratings and Fabry-Perot Interferometers Under Gamma Radiation

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Photonic Sensors 2022年第1期12卷 91-98页

作者： Zhuoyue LI Zengling RAN Xianguo QING Zhengxi HE Yaqin XIAO Tingting YANG Xiu HE Jialiang ZHU Peng HE Sijie XU Science and Technology on Reactor System Design Technology Laboratory Nuclear Power Institute of ChinaChengdu 610213China Key Laboratory of Optical Fiber Sensing&Communications(Ministry of Education) University of Electronic Science and Technology of ChinaChengdu 611731China China Aerodynamics Research and Development Center Mianyang 621000China

The sensing characteristics of irradiated fiber Bragg gratings(FBGs)and Fabry-Perot interferometers(FPIs)were investigated under a 2MGy dose of gamma *** study found that the pressure sensitivity of FP sensors after irradiation was stable,while the temperature sensitivity of FBG sensors was unstable,and both wavelengths displayed a *** findings offer the possibility for the application of FP pressure sensors in the gamma radiation environments,and FBG sensors require further research to be suitable for application in the nuclear radiation environments.

关键词： Fiber Bragg gratings Fabry-Perot interferometers gamma radiation

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Distributed computations for large-scale networked systems using belief propagation

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Journal of Automation and Intelligence 2023年第2期2卷 61-69页

作者： Qianqian Cai Zhaorong Zhang Minyue Fu School of Automation Guangdong University of TechnologyGuangzhou 510006China Department of Applied Mathematics Hong Kong Polytechnic UniversityHong Kong Special Administrative Region of China School of System Design and Intelligent Manufacturing Southern University of Science and TechnologyShenzhen 518055China

This paper introduces several related distributed algorithms,generalised from the celebrated belief propagation algorithm for statistical *** algorithms are suitable for a class of computational problems in largescale networked systems,ranging from average consensus,sensor fusion,distributed estimation,distributed optimisation,distributed control,and distributed *** expressing the underlying computational problem as a sparse linear system,each algorithm operates at each node of the network graph and computes iteratively the desired *** behaviours of these algorithms are discussed in terms of the network graph topology and parameters of the corresponding computational problem.A number of examples are presented to illustrate their *** introduced is a message-passing algorithm for distributed convex optimisation.

关键词： Distributed estimation Distributed optimisation Sensor fusion Distributed algorithm

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Effect of Fecral Sublayer Composition on the Microstructure, Mechanical Properties and Corrosion Resistance of Fecral/Ysz Composite Coatings

SSRN

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SSRN 2023年

作者： Zhu, Changda Qiu, Xi Li, Yuanming Zhang, Wei Yang, Jian Zhong, Yilong Deng, Jiuguo Zhou, Mingyang Liu, Ning Yang, Jijun Key Laboratory of Radiation Physics and Technology of Ministry of Education Institute of Nuclear Science and Technology Sichuan University Chengdu610064 China Science and Technology on Reactor System Design Technology Laboratory Nuclear Power Institute of China Chengdu610213 China

The effect of FeCrAl sublayer composition on the microstructure, mechanical properties and lead-bismuth eutectic (LBE) corrosion behavior of the FeCrAl/YSZ composite coatings were systematically investigated. The results show that the FeCrAl sublayer as a diffusion barrier and bonding layer is beneficial to improve the mechanical properties and corrosion resistance of the coatings. After corrosion, a slow-growing, continuous and protective Al-rich oxide is formed at the interface between the YSZ and FeCrAl sublayer, which can effectively hinder the inward diffusion of oxygen atoms and the outward diffusion of iron atoms. Especially, the Fe12Cr9Al/YSZ coating exhibits the best corrosion resistance even after corrosion at 700°C. The microscopic corrosion mechanism of FeCrAl/YSZ coating is elucidated. © 2023, The Authors. All rights reserved.

关键词： Eutectics

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Enhanced thermal isolation in porous thermal barrier coatings by the formation of pore guided thermal-shock cracks

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science China(Technological sciences) 2023年第4期66卷 1007-1017页

作者： ZHEN Yu WU KaiJin LIU MengQi ZHENG SongLin HE LingHui YU Yin NI Yong CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern MechanicsCAS Center for Excellence in Complex System MechanicsUniversity of Science and Technology of ChinaHefei 230026China National Key Laboratory of Shock Wave and Detonation Physics China Academy of Engineering PhysicsInstitute of Fluid PhysicsMianyang 621900China

Pore structure design is an effective strategy to tailor the thermal isolation capability of thermal barrier coatings(TBCs).Pursuing optimal porosity is crucial to balance the requirements of thermal isolation and mechanical reliability since the pore structure shields thermal heat transfer but increases mechanical *** this work,we investigate how thermal heat transfer couples with fracture propagation in porous TBCs by the using thermo-mechanical coupling phase field model for *** simulated results show that cracks induced by thermal shock favor deflection that is sometimes perpendicular to the direction of heat *** thermal conductivity degradation by the transverse cracks significantly impedes thermal heat transfer,leads to enhanced reduction of the effective thermal conductivity of TBCs,decreases the average thermal stress of the substrate,and thus decreases the risk of the crack penetrating into the *** numerical results demonstrate that the phase field method fully considering the thermo-mechanical interaction between cracks and pores can be a useful tool to improve the thermal isolation of porous TBCs under extreme thermal shock loadings through pore structure design.

关键词： phasefield TBCs porosity thermal shock cracks

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