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26th International Conference on Miniaturized Systems for Chemistry and Life sciences, MicroTAS 2022

作者： Liu, Yi Lin, Cong Miao, Jiahao Yu, Xiaomei National Key Laboratory of Science and Technology on Micro/Nano Fabrication School of Integrated Circuits Peking University Beijing100871 China

ISBN: (纸本)9781733419048

In this paper, a monolithically integrated microcantilever chip consisting of a piezoresistive microcantilever array and an on-chip signal processing circuits is developed based on a SOI CMOS process. Both the piezoresistor embedded in the microcantilever and the CMOS circuit were fabricated by the single-crystal silicon of a SOI wafer, which will provide a high signal to noise ratio (SNR) for the integrated microcantilever sensor. The integrated microcantilever was functionalized by biotinylated goat anti-human Immunoglobulin G for a specific detection of IgG, and a minimum concentration of 0.8 ng/mL was detected. This technique provides a broad application prospect in biomolecule detections with high sensitivity. © 2022 MicroTAS 2022 - 26th International Conference on Miniaturized Systems for Chemistry and Life sciences. All rights reserved.

关键词： Signal to noise ratio

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Tumor diagnosis using carbon-based quantum dots:Detection based on the hallmarks of cancer

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Bioactive Materials 2024年第3期33卷 174-222页

作者： Hang Wang Siwei Yang Liangfeng Chen Yongqiang Li Peng He Gang Wang Hui Dong Peixiang Ma Guqiao Ding National Key Laboratory of Materials for Integrated Circuit Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai200050PR China CAS Center for Excellence in Superconducting Electronics(CENSE) Chinese Academy of SciencesShanghai200050PR China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences(UCAS)Beijing100049PR China Department of Microelectronic Science and Engineering School of Physical Science and TechnologyNingbo UniversityNingbo315211PR China Shanghai Key Laboratory of Orthopedic Implants Department of Orthopedic SurgeryShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011PR China

Carbon-based quantum dots(CQDs)have been shown to have promising application value in tumor *** use,however,is severely hindered by the complicated nature of the nanostructures in the ***,it seems impossible to formulate the mechanisms involved using the inadequate theoretical frameworks that are currently available for *** this review,we re-consider the structure-property relationships of CQDs and summarize the current state of development of CQDs-based tumor diagnosis based on biological theories that are fully *** advantages and deficiencies of recent research on CQDs-based tumor diagnosis are thus explained in terms of the manifestation of nine essential changes in cell *** review makes significant progress in addressing related problems encountered with other nanomaterials.

关键词： Tumor diagnosis Carbon-based quantum dots Hallmarks of cancer Cell physiology Structure design

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Privacy - Preserving Event - Triggered Predefined Time Containment control for Networked Agent Systems 14

Privacy - Preserving Event - Triggered Predefined Time Conta...

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14th International Conference on Information science and technology, ICIST 2024

作者： Li, Weihao Yue, Jiangfeng Shi, Mengji Lin, Boxian Qin, Kaiyu School of Aeronautics and Astronautics University of Electronic Science and Technology of China Chengdu China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Laboratory of Sichuan Province Chengdu611731 China National Laboratory on Adaptive Optics Chengdu610209 China

ISBN: (纸本)9798350353334

This paper addresses the privacy-preserving event-triggered predefined time containment control problem for net-worked agent systems. A novel containment control scheme is developed that integrates privacy protection with event-triggered mechanisms, optimizing network efficiency b y minimizing un-necessary data transmission while ensuring robust containment within a specified time frame. T he proposed control scheme ensures the confidentiality of agents' information through output masking, thereby maintaining both privacy and control accuracy. Furthermore, it provides a distinct advantage over traditional finite-time and fi xed-time co ntrol me thods by gu aranteeing con-vergence to the desired state within a predefined time, regardless of initial conditions. Finally, some simulation results are given to verify the effectiveness of the proposed containment control scheme. © 2024 IEEE.

关键词： Differential privacy

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Spatial adaptivity with boundary refinement for smoothed particle hydrodynamics fluid simulation

Spatial adaptivity with boundary refinement for smoothed par...

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作者： Xu, Yanrui Song, Chongming Wang, Xiaokun Ban, Xiaojuan Wang, Jiamin Zhang, Yalan Chang, Jian School of Intelligence Science and Technology University of Science and Technology Beijing Beijing China Beijing Key Laboratory of Knowledge Engineering for Materials Science University of Science and Technology Beijing Beijing China National Centre for Computer Animation Bournemouth University Poole United Kingdom Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Beijing China Key Laboratory of Perception and Control of Intelligent Bionic Unmanned Systems Ministry of Education University of Science and Technology Beijing Beijing China

Fluid simulation is well-known for being visually stunning while computationally expensive. Spatial adaptivity can effectively ease the computational cost by discretizing the simulation space with varying resolutions. Adaptive methods nowadays mainly focus on the mechanism of refining the fluid surfaces to obtain more vivid splashes and wave effects. But such techniques hinder further performance gain under the condition where most of the vast fluid surface is tranquil. Moreover, energetic flow beneath the surface cannot be adequately captured with the interior of the fluid still being simulated under coarse discretization. This article proposes a novel boundary-distance based adaptive method for smoothed particle hydrodynamics fluid simulation. The signed-distance field constructed with respect to the coupling boundary is introduced to determine particle resolution in different spatial positions. The resolution is maximal within a specific distance to the boundary and decreases smoothly as the distance increases until a threshold is reached. The sizes of the particles are then adjusted towards the resolution via splitting and merging. Additionally, a wake flow preservation mechanism is introduced to keep the particle resolution at a high level for a period of time after a particle flows through the boundary object to prevent the loss of flow details. Experiments show that our method can refine fluid–solid coupling details more efficiently and effectively capture dynamic effects beneath the surface. © 2023 The Authors. Computer Animation and Virtual Worlds published by John Wiley & Sons Ltd.

关键词： Hydrodynamics

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Research on the Effect of Visual Warming Information Presentation on Attention in Fighter Tracking Task

Research on the Effect of Visual Warming Information Present...

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2023 IEEE International Conference on Industrial Engineering and Engineering Management, IEEM 2023

作者： Zhu, Jingxin Qu, Mengyuan Tian, Jingze Wang, Yiyan Huang, Jianwei Yang, Wenjun Niu, Yafeng School of Mechanical Engineering Southeast University Nanjing China Xiamen Municipal Smart City Technology Co. Ltd. Xiamen China National Key Laboratory of Science and Technology on Aircraft Control Xi'an China

ISBN: (纸本)9798350323153

The influence of several visual warning presentation techniques on attention during the fighter tracking task is examined in this research. Concentrate on analyzing the visual channel information form used in alarm systems, as well as how tracking tasks and alert reaction tasks are conveyed by this information. To investigate the ideal visual angle of separation (VAS) and flashing frequency of the visual warning information of the fighter tracking task, the tracking inaccuracy of the tracking task, the reaction time and response accuracy of the warning response task, and the subjective workload of the participants were measured. The pilot performs well in all areas when there is a visual saccade warning signal with a VAS of 10°;for minor warning content, when the VAS is at 20° or 30°,the flashing frequency of 5Hz will not result in a significant load experience, and interference with the primary task can enhance the performance of warning and attention. © 2023 IEEE.

关键词： Attention resource theory Fighter tracking task Human-computer interaction

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Deep learning-based prediction of effluent quality of a constructed wetland

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Environmental science and Ecotechnology 2023年第1期13卷 64-74页

作者： Bowen Yang Zijie Xiao Qingjie Meng Yuan Yuan Wenqian Wang Haoyu Wang Yongmei Wang Xiaochi Feng State Key Laboratory of Urban Water Resource and Environment School of Civil and Environmental EngineeringHarbin Institute of Technology(Shenzhen)ShenzhenGuangdong518055PR China Shenzhen Shenshui Water Resources Consulting CO LTDShenzhenGuangdong518022PR China College of Biological Engineering Beijing PolytechnicBeijing10076PR China State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen518055China

Data-driven approaches that make timely predictions about pollutant concentrations in the effluent of constructed wetlands are essential for improving the treatment performance of constructed ***,the effect of the meteorological condition and flow changes in a real scenario are generally neglected in water quality *** address this problem,in this study,we propose an approach based on multi-source data fusion that considers the following indicators:water quality indicators,water quantity indicators,and meteorological *** this study,we establish four representative methods to simultaneously predict the concentrations of three representative pollutants in the effluent of a practical large-scale constructed wetland:(1)multiple linear regression;(2)backpropagation neural network(BPNN);(3)genetic algorithm combined with the BPNN to solve the local minima problem;and(4)long short-term memory(LSTM)neural network to consider the influence of past results on the *** results suggest that the LSTM-predicting model performed considerably better than the other deep neural network-based model or linear method,with a satisfactory R^(2).Additionally,given the huge fluctuation of different pollutant concentrations in the effluent,we used a moving average method to smooth the original data,which successfully improved the accuracy of traditional neural networks and hybrid neural *** results of this study indicate that the hybrid modeling concept that combines intelligent and scientific data preprocessing methods with deep learning algorithms is a feasible approach for forecasting water quality in the effluent of actual engineering.

关键词： LSTM Constructed wetlands Water quality prediction Deep learning Multi-source data fusion

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Robust H∞ Attitude Stabilization for the Cluster Takeover of Non-cooperative Flexible Spacecraft 1

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29th International Conference on Computational and Experimental Engineering and sciences, ICCES 2023

作者： Yue, Xiaokui Yang, Ziyu Yu, Hongyu Huang, Panxing Liu, Yuan National Key Laboratory of Aerospace Flight Dynamics School of Astronautics Northwestern Polytechnical University Xi’an710072 China Science and Technology on Space Intelligent Control Laboratory Beijing Institute of Control Engineering Beijing100094 China Beijing Institute of Remote Sensing Information Beijing100011 China

ISBN: (数字)9783031449475

ISBN: (纸本)9783031449468

In this paper, a cooperative control scheme based on the small spacecraft cluster is proposed for the takeover control of the failed flexible spacecraft in space. In order to overcome external disturbance, inertia uncertainty and controller gain perturbation, the controller spacecraft calculates the control torque which can stabilize the combined spacecraft in theory, and generates the desired control signal according to the robust H∞ non-fragile control law set in advance. Based on the communication topology, the actuator spacecraft restores the control signal according to the distributed control torque allocation scheme considering the saturation state of all reaction wheels, and implements it to achieve the attitude stabilization and vibration suppression of the combined spacecraft. Simulation results show that the distributed control torque allocation scheme can implement the desired control signal with relatively small error. Under the condition that the external disturbance, controller gain perturbation and inertia uncertainty coexist, the angle and angular velocity of the combined spacecraft can be stabilized quickly. Moreover, the vibration of the flexible appendages can also be suppressed effectively. During the whole takeover control process, the dynamic allocation scheme can always ensure that all reaction wheels of each actuator spacecraft never reach saturation. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Flexible spacecraft

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Design and Simulation of Channel Simulator for Complex Enclosed Space 7

Design and Simulation of Channel Simulator for Complex Enclo...

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7th IEEE International Conference on Electronic Information and Communication technology, ICEICT 2024

作者： Wang, Yan Zhang, Tao Zou, Danqing Mao, Yu Wang, Mengyu Graduate School of Chinese Aeronautical Establishment 225000 China Aviation Key Laboratory of Science and Technology on Electromagnetic Environment Effects 110035 China National Key Laboratory of Electromagnetic Information Control and Effects 110035 China Qianxun Spatial Intelligence Inc. Shanghai200000 China

ISBN: (纸本)9798350384437

In order to evaluate the performance of wireless communication systems in a faster and more economic fashion, we propose to design the so-called channel simulator, through which wireless channel properties of complex enclosed environments are reconstructed by a simple device. In this sense, channel measurements in specific scenarios, e.g. aircrafts, which are formerly expensive and time-consuming become concise and cost-effective. This paper introduces the concept of channel simulator and describes the design process in detail. Simulated results of wireless channel properties from the simulator are compared with those from a realistic aircraft model, verifying the feasibility and potential of the idea. © 2024 IEEE.

关键词： Aircraft models

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Rethinking development and major research plans of Industrial Internet in China

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Fundamental Research 2024年第1期4卷 3-7页

作者： Chunxiao Jiang Yang Cong Jiming Chen Chenghong Wang Guozheng Wu Ruizhen Zhao Zhiheng Wang Bin Xiao Ting Chen Beijing National Research Center for Information Science and Technology Tsinghua UniversityBeijing 100084China Tsinghua Space Center Tsinghua UniversityBeijing 100084China State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016China College of Control Science and Engineering Zhejiang UniversityHangzhou 310027China Division III Department of Information SciencesNational Natural Science Foundation of ChinaBeijing 100085China Division II Department of Information SciencesNational Natural Science Foundation of ChinaBeijing 100085China Chongqing Key Laboratory of Image Cognition School of Computer Science and TechnologyChongqing University of Posts and TelecommunicationsChongqing 400065China University of Electronic Science and Technology of China Chengdu 611731China

This paper gives a definition of the Industrial Internet and expounds on the academic connotation of the future Industrial *** this foundation,we outline the development and current status of the Industrial Internet in China and ***,we detail the avant-garde paradigms encompassed within the national Natural science Foundation of China(NSFC)’s“Future Industrial Internet Fundamental Theory and key Technologies”research plan and its corresponding management *** research initiative endeavors to enhance interdisciplinary collaborations,aiming for a synergistic alignment of industry,academia,research,and practical *** primary focus of the research plan is on the pivotal scientific challenges inherent to the future industrial *** is poised to traverse the“first mile”,encompassing foundational research and pioneering innovations specific to the industrial internet,and seamlessly bridges to the“last mile”,ensuring the effective commercialization of scientific and technological breakthroughs into tangible industrial market *** anticipated contributions from this initiative are projected to solidify both the theoretical and practical scaffolding essential for the cultivation of a globally competitive industrial internet infrastructure in China.

关键词： Industrial Internet Academic connotation Major research plan Scientific problem Policy advice

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Precise orbit determination for TH02-02 satellites based on BDS3 and GPS observations

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Chinese Journal of Aeronautics 2023年第5期36卷 475-485页

作者： Houzhe ZHANG Bing JU Defeng GU Ying LIU Kai SHAO Xiaojun DUAN Zhiyong HUANG College of Science National University of Defense TechnologyChangsha 410073China National Key Laboratory of Science and Technology on Aerospace Flight Dynamics Beijing Aerospace Control CenterBeijing 100094China MOE Key Laboratory of TianQin Mission TianQin Research Center for Gravitational PhysicsFrontiers Science Center for TianQinCNSA Research Center for Gravitational WavesSun Yat-sen University(Zhuhai Campus)Zhuhai 519082China School of Artificial Intelligence Sun Yat-sen University(Zhuhai Campus)Zhuhai 519082China School of Physics and Astronomy Sun Yat-sen University(Zhuhai Campus)Zhuhai 519082China Information Engineering University Zhengzhou 450001China

The Tianhui-202(TH02-02)satellite formation,as a supplement to the microwave mapping satellite system Tianhui-201(TH02-01),is the first Interferometric Synthetic Aperture Radar(InSAR)satellite formation-flying system that supports the tracking of BeiDou global navigation Satellite system(BDS3)new B1C and B2a ***,the twin TH02-02 satellites also support the tracking of Global Positioning System(GPS)L1&L2 and BDS B1I&B3I *** the spaceborne receiver employs two independent boards to track the Global Navigation Satellite System(GNSS)satellites,we design an orbit determination strategy by estimating independent receiver clock offsets epoch by epoch for each GNSS to realize the multi-GNSS data fusion from different *** performance of the spaceborne receiver is evaluated and the contribution of BDS3 to the kinematic and reduced-dynamic Precise Orbit Determination(POD)of TH02-02 satellites is *** tracking data onboard shows that the average number of available BDS3 and GPS satellites are 8.7 and 9.1,*** carrier-to-noise ratio and carrier phase noise of BDS3 B1C and B2a signals are comparable to those of ***,strong azimuth-related systematic biases are recognized in the pseudorange multipath errors of B1C and *** pseudorange noise of BDS3 signals is better than that of GPS after eliminating the multipath errors from specific *** the GPS-based reduced-dynamic orbit with single-receiver ambiguity fixing technique as a reference,the results of BDS3-only and BDS3+GPS combined POD are *** Root Mean Square(RMS)of orbit comparison of BDS3-based kinematic and reduced-dynamic POD with reference orbit are better than 7 cm and 3 cm in three-Dimensional direction(3D).The POD performance based on B1C&B2a data is comparable to that based on B1I&*** precision of BDS3+GPS combined kinematic orbit can reach up to 3 cm(3D RMS),which has a more than 25%improvement relative to the GPS-only *** addi

关键词： BDS3 Multi-GNSS Precise orbit determination Spaceborne GNSS receiver TH02-02

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