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Hmm-Based Asynchronous Synthesis for Interval Type-2 Fuzzy Semi-Markovian Jump Systems with its Applications: A Bilateral Looped Functional Methodology

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SSRN 2022年

作者： Li, Xiaoqing She, Kun Shi, Kaibo Cheng, Jun Zhong, Shouming Peng, Zhinan School of Electrical Engineering and Automation Hefei University of Technology Hefei230009 China School of Information and Software Engineering University of Electronic Science and Technology of China Chengdu611731 China School of Information Science and Engineering Chengdu University Chengdu610106 China College of Mathematics and Statistics Guangxi Normal University Guilin541006 China School of Mathematics Sciences University of Electronic Science and Technology of China Chengdu611731 China School of Automation Engineering University of Electronic Science and Technology of China Chengdu611731 China

This article mainly addresses the hidden-Markovian model-based asynchronous sampled-data control synthesis problem for interval type-2 (IT2) fuzzy semi-Markovian jump systems (S-MJSs) with stochastic actuator failures (SAFs). Herein, the asynchronous factor resulted from twofold: 1) hidden Markovian model (HMM) and 2) imperfectly matched membership functions (IMMFs) between the original plant and the controller. Aiming at approximating the nonlinearity along with randomness with high accuracy and broadening practical application background, the IT2 fuzzy S-MJSsassociated with IMMFs is established. At the beginning, a HMM is borrowed to portray the discrepancy between the corresponding plant and the desired controller. Additionally, in comparison with majority of some previous sampled-data control mechanisms, a intrinsic lag signal and gain fluctuations are purposefully introduced in the double asynchronous control strategy, which exploited initially to settle the control synthesis issue. By considering the information of sampling intervals x(t k ) → x(t) → x(t k+1 ) along with x(t k −τ) → x(t−τ) → x(t k+1 −τ) adequately, a fresh looped Lyapunov functional called dual-sided sampling-interval-dependent looped Lyapunov functional is innovatively constructed. By suitably incorporating with the skills of stochastic analysis and relaxed integral inequality (including generalized free matrix-based integral inequality and canonical Bessel-Legendre integral inequality) together with symmetric slack matrices, numerically testable sufficient conditions are established in the form of a group of feasible multi-parameterized linear matrix inequalities (M-PLMIs). The theoretical developments are implies the hierarchy character, and the conservatism decreases with the increase of the degree of hierarchy. Conclusively, the design methodology brought forward herein is demonstrated by two practical examples, which show the potency and practicability. © 2022, The Authors. All rights re

关键词： Hidden Markov models

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A Low-cost Creatinine Biosensor by Differential Optical Signal Readout for the Whole Blood Analysis

A Low-cost Creatinine Biosensor by Differential Optical Sign...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Jie Cheng Jiuchuan Guo Jinhong Guo School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China School of Automation Engineering University of Electronic Science and Technology of China Chengdu P. R. China University of Electronic Science and Technology of China Chengdu China School of Sensing Science and Engineering Shanghai Jiao Tong University Shanghai M.O.E. Key Laboratory of Laboratory Medical Diagnostics The College of Laboratory Medicine Chongqing Medical University Chongqing China

This study developed a low-cost paper-based biosensor for point-of-care (POC) detection of blood creatinine by using differential optical signal readout. Dual-channel photochemical paper-based test strips were fabricated with stackable multilayer films containing pre-immobilized enzymes and reagents for the identification and conversion of creatinine and creatine. Enzyme-linked reactions generated hydrogen peroxide (H 2 O 2 ), which formed a blue oxidized condensate with aniline derivatives. The color depth was quantified via the differential optical signal of the two channels and positively correlated with the concentration of the analyte. This method was first proposed to address the issue of endogenous interferences in the enzymatic assay of creatinine, greatly improving the detection accuracy. The proposed biosensor was calibrated with spiked blood samples, and achieved a wide detection range of 31-1483 μmol/L, showing superior detection performance to general enzymatic methods, especially in the low concentration range. Creatine interference testing demonstrated that the biosensor could resist the interference of ≤ 300 μmol/L endogenous creatine. It is believed that the proposed optical differential biosensor for blood creatinine could enable to pave the way for a daily monitoring system for renal *** Relevance— This stackable multilayer paper-based biosensor provides an enzymatic colorimetric assay of creatinine in whole blood, which can be read out by the differential optical signal to exclude interference from endogenous creatine.

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Study of the Synergistic Effect of Hydrogen Bonding and Nano-Si3N4 in XNBR Matrix

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Journal of Inorganic and Organometallic Polymers and Materials 2021年第7期31卷 2859-2867页

作者： Zhang, Lin Zhou, Junbo Yang, Jian Cai, Zhenbing Zhu, Minhao College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu China Tribology Research Institute School of Mechanical Engineering Southwest Jiaotong University Chengdu China Key Laboratory of Advanced Technologies of Materials (Ministry of Education) School of Materials Science and Engineering Southwest Jiaotong University Chengdu China

In this work, the Si3N4 nano-particles were dispersed in organic hybrid damping materials to enhance the mechanical properties, and the effect of surface silylation on Si3N4 was also studied. The hydrogen bond networks were formed via the interactions of AO-80 small organic molecules (phenolic hydroxyl groups). In the composites, the Young’s modulus and hydrogen bond interaction were verified by molecular dynamics simulation, which was in high consistent with the experimental results. For the surface-treated fillers, there were hydrogen bond networks in both XNBR/sin system and XNBR/AO-80 system, and the hydrogen bond network in the composites could contribute to better dispersion of Si3N4 and improvement of mechanical properties.

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A Bagged Tree Identification Method Combining Higher Order Cumulant and Permutation Entropy for Communication Modulated Signal

A Bagged Tree Identification Method Combining Higher Order C...

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IEEE International Conference on Power, Intelligent Computing and Systems (ICPICS)

作者： Haoran Lv Mingfu Shen Weijie Weng College of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu Sichuan China School of Electronic Information and Automation Civil Aviation University of China Tianjin China School of Information Science and Technology Xiamen University Tan Kah Kee College Zhangzhou Fujian China

The channel environment of wireless communication is more and more complex, and the modulation modes of communication signals become more diverse, which brings new challenges and problems to the modulation signal recognition technology. In this paper, a bagged tree recognition method combining high order cumulant and permutation entropy is proposed. It's found that compared with other recognition methods, the proposed method has some advantages in prediction speed (~40000obs / sec) and accuracy (92.8 % ). After adding the time-domain and frequency-domain features, the recognition accuracy can be further improved, but it will increase the training time and reduce the classification speed.

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Systematic Advancement of Yolo Object Detector For Real-Time Detection of Objects

Systematic Advancement of Yolo Object Detector For Real-Time...

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International Conference on Wavelet Active Media technology and Information Processing (ICWAMTIP)

作者： Ejiyi Chukwuebuka Joseph Olusola Bamisile Nneji Ugochi Qin Zhen Ndalahwa Ilakoze Chikwendu Ijeoma School of Information and Software Engineering University of Electronic Science and Technology of China College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu China School of Information and Communication Engineering University of Electronic Science and Technology of China

ISBN: (纸本)9781665413657

This paper explicates the systematic advancements that were observed from the inception of the YOLO (You Only Look Once) object detector to the most recent version 4. Since its introduction in late 2015, YOLO has recorded tremendous implementation as well as improvements and applications. In this work, a brief survey of the YOLO network is presented considering the introduction that was made to each version that succeeded each preceding version and the advancement on how the model performed with detection. We used the latest version of the network (YOLOv4) to train 50 classes of objects that we considered popular objects for real-time detection. The model trained obtained an mAP of 64.80% @IoU of 0.5 and when deployed for real-time detection, it achieved a 43FPS speed of detection.

关键词： Systematics Computational modeling Detectors Object detection Information processing Media Real-time systems

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Privacy Preservation for Cloud-Edge-Collaborative Energy Management System Using Post-Quantum Homomorphic Encryption

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IEEE Transactions on Smart Grid 2025年

作者： Jiang, Cheng Li, Xue Du, Dajun Qian, Hong Wen, Mi Wu, Lei Findeisen, Rolf Shanghai University of Electric Power Shanghai Key Laboratory of Power Station Automation Technology College of Automation Engineering Shanghai200090 China Shanghai University Shanghai Key Laboratory of Power Station Automation Technology School of Mechatronical Engineering and Automation Shanghai200072 China Shanghai University of Electric Power College of Computer Science and Technology Shanghai201306 China Advanced Cryptography and System Security Key Laboratory of Sichuan Province Chengdu610225 China Stevens Institute of Technology Department of Electrical and Computer Engineering HobokenNJ07030 United States TU Darmstadt Control and Cyber-Physical Systems Laboratory Darmstadt64227 Germany

Cloud-based energy management systems (EMS) in smart grids face privacy challenges, as existing methods based on traditional homomorphic encryption support limited operations and are vulnerable to quantum attacks. We propose a privacy preservation method for smart grid energy management system, leveraging edge-assisted computing and ring learning with errors (RLWE) homomorphic encryption. Our approach enables both addition and multiplication operations on encrypted smart grid data while defending against quantum threats. We demonstrate the methods security under the RLWE hardness assumption and validate its effectiveness through an experimental platform simulating smart grid environments. This work addresses computational limitations in current privacy-preserving techniques, enhancing data security for evolving smart grid technologies © 2010-2012 IEEE.

关键词： Power management (telecommunication)

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Factors that influence the performance of hydrogen detectors based on single-wall carbon nanotubes

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Carbon 2024年 216卷

作者： Zhi-feng ZHANG Ye-xin YANG Song-lin ZHU Yan SHI Jiang-feng SONG Guang-kun REN Shun-jie DENG Xiao-feng TIAN Zhe ZHENG The College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu 610059 China Institute of Materials China Academy of Engineering Physics Jiangyou 621908 China

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Fully Distributed Adaptive Observer-Based Consensus Protocols for Nonlinear Multi-Agent Systems via Dynamic Event-Triggered Transmission Strategy

Fully Distributed Adaptive Observer-Based Consensus Protocol...

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Chinese Control Conference (CCC)

作者： Sheng Han Hong Zhu Yiqun Kuang Zhinan Peng Kaibo Shi Qishui Zhong School of Automation Engineering University of Electronic Science and Technology of China Chengdu P. R. China Institute of Electronic and Information Engineering of University of Electronic Science and Technology of China Dongguan P. R. China School of Electronic Information and Electrical Engineering Chengdu University Chengdu Sichuan P. R. China College of Electrical Engineering Sichuan University Chengdu Sichuan P. R. China School of Aeronautics and Astronautics University of Electronic Science and Technology of China Chengdu Sichuan P. R. China

This paper focuses on the event-triggered consensus problem of nonlinear multi-agent systems (MASs) via a fully distributed control scheme. Firstly, a nonlinear full-dimensional state observer is established to estimate the state of each agent according to the measurement of the system output. Then, an observer-based adaptive consensus protocol is proposed by utilizing only the neighboring state information, where the global topology of the MASs communication network is no longer required. In addition, a dynamic event-triggered transmission scheme is presented to further reduce the communication load in the MASs network. Furthermore, the consensus of MASs can be ensured by solving two linear matrix inequalities and the gain matrices of observer and controller are obtained. Finally, a simulation test is provided to verify the feasibility and performance of the proposed control methods.

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A Fault Detection Method for Tree Contact Single-Phase-To-Ground Fault

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SSRN 2023年

作者： Wu, Juping Xv, Huikai Jin, Min Gong, Guoliang Chen, Gang Mao, Wenyu Lu, Huaxiang Chen, Tianxiang Institute of Semiconductors CAS Beijing100083 China University of Chinese Academy of Sciences Beijing China Semiconductor Neural Network Intelligent Perception and Computing Technology Beijing Key Laboratory Beijing China Collage of Microelectronics University of Chinese Academy of Sciences Beijing China Materials and Optoelectronics Research Center University of Chinese Academy of Sciences Beijing China Tianjin University of Science and Technology Tianjin300457 China College of Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu610059 China

High impedance fault(HIF), especially tree contact single-phase-to-ground fault(TSF), often occurs in resonant grounding systems and are difficult to detect. Therefore, there is an urgent need for an effective TSF detection technology. In this paper, by analyzing the equivalent circuits of different impedance faults in resonant grounding system, and analyzing the transient zero-sequence components of underdamped state and overdamped state under different impedance, the conclusion is drawn: When a TSF occurs, the transient zero-sequence voltage will have a unique " Beat frequency " characteristic, and the problem of covering this phenomenon due to the imbalance of distribution network is effectively solved by fast independent component analysis(FastICA). Based on this conclusion, A fault detection method for TSF based on FastICA is proposed. Finally, the study conducted real experiments using two different impedance trees, bamboo and pine, to verify the proposed detection method. The results of the experiment found clear support for that the detection method is accurate and effective. © 2023, The Authors. All rights reserved.

关键词： Fault detection

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Achieving high hetero-deformation induced(HDI)strengthening and hardening in brass by dual heterostructures

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Journal of Materials Science & technology 2022年第3期98卷 244-247页

作者： X.T.Fang Z.K.Li Y.F.Wang M.Ruiz X.L.Ma H.Y.Wang Y.Zhu R.Schoell C.Zheng D.Kaoumi Y.T.Zhu Department of Materials Science and Engineering North Carolina State UniversityRaleighNC 27695USA Key Laboratory for Anisotropy and Texture of Materials of Ministry of Education Northeastern UniversityShenyang 110819China School of Aeronautics and Astronautics Sichuan UniversityChengdu 610065China Department of Materials Science and Engineering Texas A and M UniversityCollege StationTX 77840USA Department of Mechanical and Aerospace Engineering North Carolina State UniversityRaleighNC 27695USA Department of Nuclear Engineering North Carolina State UniversityRaleighNC 27695USA Science and Technology on Thermostructural Composite Materials Laboratory Northwestern Polytechnical UniversityXi’an 710072China

Heterostructured materials,defined as materials that contain multiple zones with dramatically different flow stresses,have the potential to push the envelope of the strength-ductility of metals and alloys beyond what can be obtained conventionally[1–3].A prominent example is the heterogeneous lamella Ti that is as strong as its ultrafine-grained Ti,while as ductile as the coarsegrained Ti[4].

关键词： grain strengthening deformation

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