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2022 11th International Conference on Information and electronics Engineering, ICIEE 2022

作者： Huang, Tao Cao, Zining Li, Qing College of Computer Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing210016 China Science and Technology on Electro-optic Control Laboratory Luoyang471023 China Collaborative Innovation Center of Novel Software Technology and Industrialization Nanjing210023 China

CPS is a multidimensional complex system that can realize the interaction between computing process and physical process. Aiming at the problems of fault occurrence and uncertain behavior, this paper proposes the fault analysis stochastic hybrid automata as a formal model, the attributes of randomness and fault analysis are added through AADL behavior attachment to expand the attributes of hybrid automata, and applies the extended automata to the embedded system for system description and fault analysis. The model is used to model the fire control system, and AADL, Modelica and fault tree are combined to form a new model. The behavior is analyzed, and the conversion algorithm and conversion example are given. © Published under licence by IOP Publishing Ltd.

关键词： Fire control systems

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3D Path Planning for UAV with Improved Double Deep Q-Network

3D Path Planning for UAV with Improved Double Deep Q-Network

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Chinese Intelligent Systems Conference, CISC 2020

作者： Zhao, Liping Ma, Yaofei Zou, Jie Beihang University Beijing100191 China Science and Technology on Electro-optic Control Laboratory Luoyang China

ISBN: (纸本)9789811584572

Unmanned aerial vehicle (UAV) has been widely used in civil and military fields due to its advantages such as zero casualties, low cost and strong maneuverability. Path planning in 3D obstacle environment is one of the fundamental capabilities of UAV for mission performing. In this paper, we propose a 3D path planning algorithm to learn a target-driven end-to-end model based on an improved double deep Q-network (DQN), where a greedy exploration strategy is applied to accelerate learning. The model takes target and obstacle message as input, and moving command of UAV as output. It can realize path planning successfully for UAV in 3D complex environment. Besides, the experimental results show that improved double DQN has better convergence speed compared with DQN and double DQN. © 2021, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Motion planning

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A Rapid and Integrated Modeling Method of Aircraft Vulnerability Based on CATIA Analysis Simulation Module 5th

A Rapid and Integrated Modeling Method of Aircraft Vulnerabi...

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5th China Aviation science and technology Conference, 2021

作者： Pei, Yang Shi, Likuan Ge, Yuxue Li, Mingsuo Bai, Chunyu Zhang, Yu School of Aeronautics Northwestern Polytechnical University Xi’an710072 China Science and Technology on Electro-Optic Control Laboratory Luoyang471009 China Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics Aircraft Strength Research Institute of China Xi’an710065 China

ISBN: (纸本)9789811674228

Aircraft vulnerability modeling is the basis and prerequisite for vulnerability analysis. At present, vulnerability modeling methods include combinatorial geometry, triangular patch, and tetragonal patch. However, these methods have disadvantages such as low modeling accuracy, complex modeling process, and finite element software. Under the problems of the above methods, a vulnerability modeling method is proposed based on the CATIA Analysis Simulation module, in which the secondary development of the aircraft shape and the tetragonal mesh, materials, and attribute of the components data file are completed. In this method, the geometrical modeling and meshing are synchronized and integrated into the CATIA platform which shortens the vulnerability pre-modeling process. Taking the US "Scan Eagle" UAV as an example, the input model file for vulnerability analysis is generated. The effect of this method and the traditional finite element modeling method is compared in C and K kill levels, which verifies the validity and usability of the proposed method. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Aircraft

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Suitable lithium polysulfides diffusion and adsorption on CNTs@TiO_(2)-bronze nanosheets surface for high-performance lithium-sulfur batteries

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Nano Research 2022年第2期15卷 933-941页

作者： Mengmeng Zhen Keliang Jiang Sheng-Qi Guo Boxiong Shen Huiling Liu Tianjin Key Laboratory of Clean Energy and Pollution Control School of Energy and Environmental EngineeringHebei University oj TechnologyTianjin 300401China Tianjin Key Laboratory of Advanced Functional Porous Materials and Center for Electron Microscopy Institute for New Energy Materials&Low-Carbon TechnologiesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300071China

The shuttle effect of lithium polysulfides(UPSs)in lithium-sulfur batteries(LSBs)has been hampered their *** oxides as separator modifications can suppress the shuttle *** there is no direct electron transport between metal oxides and UPSs,absorbed UPSs should be diffused from the surface of metal oxides to the carbon matrix to go through redox *** diffusivity of UPSs from metal oxides surface to carbon substrate is poor,it would hinder the redox reactions of ***,researchers tend to focus on the adsorption and overlook the diffusion of ***,same morphology and different crystal phase of TiO_(2) nanosheets grown on carbon nanotubes(CNTs@TiO_(2)-bronze and CNTs@TiO_(2)-anatase)have been designed via a simple *** with CNTs and CNTs@TiO_(2)-anatase composites,the battery with CNTs@TiO_(2)-bronze modified separator delivers higher specific capacities and stronger cycling stability,especially at high current rates(~472 mAh·g^(-1) at 2.0 C after 1,000 cycles).Adsorption tests,density functional theory calculations and electrochemical performance evaluations indicate that suitable diffusion and adsorption for LiPSs on the CNTs@TiO_(2)-B surface can effectively capture LiPSs and promote the redox reaction,leading to the superior cycling performances.

关键词： lithium polysulfides Li ion diffusion adsorption TiO_(2)-bronze surface long-term cycling performances

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A Slider-Type Trim Strategy to Deal with Wing Perforation Damage Based on CFD 5th

A Slider-Type Trim Strategy to Deal with Wing Perforation Da...

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5th China Aviation science and technology Conference, 2021

作者： Peng, Qiancheng Pei, Yang Li, Mingsuo Bai, Chunyu Zhang, Yu School of Aeronautics Northwestern Polytechnical University Xi’an710072 China Science and Technology on Electro-Optic Control Laboratory Luoyang471009 China Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics Aircraft Strength Research Institute of China Xi’an710065 China

ISBN: (纸本)9789811674228

In this paper, a numerical simulation study is carried out on the aerodynamic characteristics of the aircraft wing surface after damage. The damage form is the wing perforation. To study the aerodynamic characteristics of the UAV under the condition of varying degrees of damage to the wings of the small airplane model, establish the geometric model of the airplane model in the CATIA 3D modeling software, and establish the geometric model in ANSYS ICEM and divide the calculation domain flow field grid. Perform aerodynamic calculations in ANSYS FLUENT. Firstly, the aerodynamic characteristics of the undamaged aircraft are calculated and analyzed, and then the aerodynamic characteristics of each damage situation are compared according to the different damage positions, and a response strategy using the slider as an auxiliary trim method is proposed. The research results have certain reference value for aircraft design of this type of layout. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Wings

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A Constant Potential Circuit for Electrochemical Detection of Tear Glucose 4

A Constant Potential Circuit for Electrochemical Detection o...

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4th International Conference on Circuits, Systems and Simulation, ICCSS 2021

作者： Zhao, Shunan Xie, Yi Zhu, Zhuoya Zhao, Zhiwei Lei, Wei Wang, Zhifei Yang, Ke Southeast University School of Electronic Science and Engineering Nanjing China Science and Technology on Electro-optic Control Laboratory Luoyang China

ISBN: (纸本)9781728167527

Diabetes is a disease with high incidence rate and incurable disease. According to the research at home and abroad, there is a linear relationship between tear glucose and blood glucose. Therefore, this paper proposed a method to obtain the blood glucose concentration by measuring the tear glucose. A constant potential circuit based on electrochemical three-electrode system for detecting tear glucose concentration was designed. The circuit included voltage inverter, stabilized voltage, negative feedback and microcurrent amplification module. Multisim simulation results showed that the circuit had low noise and better amplification accuracy. The PCB test board was designed and processed by Altium Designer software. The output voltage of the circuit was 100mV up to 2300mV when detecting the glucose solution from 0.1~0.6mmol/L. The experimental results showed that the circuit could be applied in the electrochemical three- electrode system. © 2021 IEEE.

关键词： Blood

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Improved Unscented Kalman Filtering Algorithm Applied to On-vehicle Tracking System

Improved Unscented Kalman Filtering Algorithm Applied to On-...

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2021 International Conference on Computer, Internet of Things and control Engineering, CITCE 2021

作者： Chen, Yun Liu, Yi Luoyang Institute of Electro-optical Equipment of AVIC Science and Technology on Electro-optic Control Laboratory Luoyang China

ISBN: (纸本)9781665421843

In this paper, we study the problem of tracking aerial targets in a modified spherical coordinate system using an on-vehicle tracking system using infrared sensors. In this challenging scenario, to solve the problems of poor calculation stability and large amount of calculation of the traditional unscented kalman filter algorithm, this article introduces and adopts an improved unscented kalman filter algorithm. In Sigma sampling, the error variance matrix uses singular value decomposition (SVD) to select the simplex with the smallest skewness. Compared with the estimation algorithm based on the standard unscented kalman filter, the new algorithm effectively reduces the state estimation error and improves the tracking stability and tracking accuracy. © 2021 IEEE.

关键词： Singular value decomposition

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A dual-projector three-dimensional measurement model for shading problem of micro-scale object complex surface

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optica Acta: International Journal of optics 2023年第2期70卷 142-152页

作者： Cheng Gui Huikai Zhong Yanjun Fu Kejun Zhong Baiheng Ma Zhanjun Yan a School of Measuring and Optical Engineering Nanchang Hangkong University Nanchang People’s Republic of China a School of Measuring and Optical Engineering Nanchang Hangkong University Nanchang People’s Republic of Chinab Science and Technology on Electro-Optic Control Laboratory Luoyang People’s Republic of China b Science and Technology on Electro-Optic Control Laboratory Luoyang People’s Republic of China

Considering the inherent defects of the traditional triangulation method, always a shadow area is produced in the image collected by the camera. In this work, based on the traditional monocular vision measurement system, an auxiliary light source was added to alleviate the shadow problem. Two symmetrical digital light processing (DLP) projectors were also employed to project the modulated monochrome red fringe patterns and the monochrome blue fringe patterns onto the object, whereas the distorted fringe patterns were captured by the colour camera. The image collected by the colour camera was separated, whereas the deformation fringe information of the measured object was obtained in the red channel and blue channel, respectively. Fusion of red and blue channels information to eliminate measurement shadows. From the experimental results, the root mean square error (RMSE) of the system was about 6µm, and this method can effectively solve the shadow problem in small object measurement.

关键词： Fringe projection profilometry dual-projector system fringe separation image fusion

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Frontiers in high entropy alloys and high entropy functional materials

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Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Xue-Qian Wang Feng-Qi Zhang Xiao-Ya Cui Bing-Bing Fan Jia-Ming Guo Zhi-Min Guo Rui Huang Wen Huang Xu-Bo Li Meng-Ru Li Yan Ma Zhi-Hua Shen Yong-Gang Sun De-Zhuang Wang Fei-Yang Wang Li-Qiang Wang Nan Wang Tian-Li Wang Wei Wang Xiao-Yang Wang Yi-Han Wang Fu-Jie Yu Yu-Zhen Yin Ling-Kun Zhang Yi Zhang Jian-Yang Zhang Qi Zhao Yu-Ping Zhao Xin-Dong Zhu Yasir Sohail Ya-Nan Chen Tao Feng Qi-Long Gao Hai-Yan He Yong-Jiang Huang Zeng-Bao Jiao Hua Ji Yao Jiang Qiang Li Xiao-Ming Li Wei-Bing Liao Huai-Jun Lin Hui Liu Qi Liu Qing-Feng Liu Wei-Di Liu Xiong-Jun Liu Yang Lu Yi-Ping Lu Wen Ma Xue-Fei Miao Jie Pan Qing Wang Hong-Hui Wu Yuan Wu Tao Yang Wei-Ming Yang Qian Yu Jin-Yu Zhang Zhi-Gang Chen Liang Mao Yang Ren Bao-Long Shen Xun-Li Wang Zhe Jia He Zhu Zhen-Duo Wu Si Lan School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and EngineeringSoutheast UniversityNanjing 211189China Department of Physics City University of Hong KongHongKong 999077China School of Materials Science and Engineering Tianjin UniversityTianjin 300072China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Department of Mechanical Engineering Research Institute for Advanced ManufacturingThe Hong Kong Polytechnic UniversityHong Kong 100872China Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China Institute of Advanced Wear&Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China School of Mechanics and Civil Engineering China University of Mining and TechnologyXuzhou 221116China School of Physical Sciences Great Bay UniversityDongguan 523000China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Beijing Advanced Innovation Center for Materials Genome Engineering Research Institute for Carbon NeutralityUniversity of Science and Technology BeijingBeijing 100083China Department of Mechanical Engineering The University of Hong KongHong Kong 999077China School of Computing Macquarie UniversitySydney 2113Australia Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China State Key Laborato

Owing to their exceptional properties,high-entropy alloys(HEAs)and high-entropy materials have emerged as promising research areas and shown diverse ***,the recent advances in the field are comprehensively reviewed,organized into five *** first section introduces the background of HEAs,covering their definition,significance,application prospects,basic properties,design principles,and *** subsequent section focuses on cutting-edge high-entropy structural materials,highlighting developments such as nanostructured alloys,grain boundary engineering,eutectic systems,cryogenic alloys,thin films,micro-nano-lattice structures,additive manufacturing,high entropy metallic glasses,nano-precipitate strengthened alloys,composition modulation,alloy fibers,and refractory *** the following section,the emphasis shifts to functional materials,exploring HEAs as catalysts,magneto-caloric materials,corrosion-resistant alloys,radiation-resistant alloys,hydrogen storage systems,and materials for ***,the review encompasses functional high-entropy materials outside the realm of alloys,including thermoelectric,quantum dots,nanooxide catalysts,energy storage materials,negative thermal expansion ceramics,and high-entropy wave absorption *** paper concludes with an outlook,discussing future directions and potential growth areas in the *** this comprehensive review,researchers,engineers,and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： High entropy alloys Cutting-edge structural materials Cutting-edgefunctional materials

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Lip Motion Magnification Network for Lip Reading 7

Lip Motion Magnification Network for Lip Reading

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7th International Conference on Big Data and Information Analytics, BigDIA 2021

作者： Zhang, Xueyi Sheng, Changchong Liu, Li National University of Defense Technology College of Systems Engineering Changsha China Science and Technology on Electro-optic Control Laboratory Luoyang China

ISBN: (纸本)9781665424660

Lip reading aims to decode the corresponding text content from a talking face. One of the most critical issues of lip reading is that it is hard to capture the subtle motion information between continuous lip images. However, this problem is always neglected in existing deep lip reading approaches. Motivated by this, the goal of this work is to capture more discriminative subtle motion information. To do so, Lip Motion Magnification Network (LMMN) module is proposed to explicitly magnify the related motion information. Concretely, we design a three-stage network architecture for lip reading, which integrates motion magnification into the baseline model. It can amplify the Euclidean distance between different sentence sample features to improve lip-reading classification performance. On the OuluVS2 dataset, the proposed method achieves 1.4% accuracy improvement compared to the baseline method. © 2021 IEEE.

关键词： Network architecture

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