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Exploring reservoir computing:Implementation via double stochastic nanowire networks

Chinese Physics B 2024年第3期33卷 572-582页

作者：唐健峰夏磊李广隶付军段书凯王丽丹 College of Artificial Intelligence Southwest UniversityChongqing 400715China Brain-inspired Computing & Intelligent Control of Chongqing Key Laboratory Chongqing 400715China National & Local Joint Engineering Laboratory of Intelligent Transmission and Control Technology Chongqing 400715China Chongqing Brain Science Collaborative Innovation Center Chongqing 400715China Key Laboratory of Luminescence Analysis and Molecular Sensing Ministry of EducationSouthwest UniversityChongqing 400715China State Key Laboratory of Intelligent Vehicle Safety Technology Chongqing 400715China

Neuromorphic computing,inspired by the human brain,uses memristor devices for complex *** studies show that self-organizing random nanowires can implement neuromorphic information processing,enabling data *** paper presents a model based on these nanowire networks,with an improved conductance variation *** suggest using these networks for temporal information processing via a reservoir computing scheme and propose an efficient data encoding method using voltage *** nanowire network layer generates dynamic behaviors for pulse voltages,allowing time series prediction *** experiment uses a double stochastic nanowire network architecture for processing multiple input signals,outperforming traditional reservoir computing in terms of fewer nodes,enriched dynamics and improved prediction *** results confirm the high accuracy of this architecture on multiple real-time series datasets,making neuromorphic nanowire networks promising for physical implementation of reservoir computing.

关键词： double-layer stochastic(DS)nanowire network architecture neuromorphic computation nanowire network reservoir computing time series prediction

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Suppression Strategy of Sub-synchronous Oscillation in OWF Connected to the Grid Through MMC-HVDC

Journal of Network Intelligence

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Journal of Network Intelligence 2024年第4期9卷 2621-2641页

作者： Yan, Ren-Wu Fu, Fu-Wei Liu, Yun-Zhang Yu, Ning Zhang, Zhi-Hong College of Electronic Electrical and Physics Engineering Research Center for Smart Grid Simulation Analysis and Integrated Control Fujian University of Technology Fuzhou350118 China Department of Computing Sciences State University of New York Brockport College NY14420 United States

Currently, modular multilevel converter-based flexible direct current transmission technology (MMC-HVDC) is the prevalent method for connecting long-distance offshore wind farms (OWF) to large power grid systems. Due to unique meteorological conditions at sea and the utilization of substantial wind turbines, offshore doubly-fed wind turbines possess a higher axial elastic coefficient compared to their onshore counterparts. When linked to the grid via MMC-HVDC, two types of sub-synchronous oscillations oc-cur: natural torsional vibrations within the wind turbine shafting and sub-synchronous oscillations resulting from interactions between the wind turbine and devices in the MMC-HVDC converter control system. To address these issues, a MMC-HVDC grid connection model for offshore long-distance doubly-fed wind farms has been developed. A cloud computing platform-based wind farm data acquisition system is employed for remote wind turbine data collection. Eigenvalue analysis and participation factors are utilized to determine oscillation modes and corresponding strongly correlated state variables arising from interactions between wind turbine shaft torsional vibration and converter devices. Upon identifying the correlations of state variables, a suppression strategy involving a circulating current suppression DC control collaborative virtual resistance controller is proposed to mitigate sub-synchronous oscillations. The efficacy of the suggested suppression approach is validated using PSCAD/EMTDC electromagnetic transient simulation software. © 2024, Taiwan Ubiquitous Information CO LTD. All rights reserved.

关键词： Eigenvalues and eigenfunctions

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Cytochrome P450 mediates the formation of four new citrinin metabolites

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Food Bioscience 2023年第3期53卷 1576-1583页

作者： Yida Xu Yongli Ye Yahui Gao Xinyu Sun Jingdong Shao Xiulan Sun State Key Laboratory of Food Science and Technology School of Food Science and TechnologyNational Engineering Research Center for Functional FoodSynergetic Innovation Center of Food Safety and Quality ControlJiangnan UniversityWuxiJiangsu214122PR China Yixing Institute of Food and Biotechnology Co. LtdYixing214200China Comprehensive Technology Center of Zhangjiagang Customs ZhangjiagangJiangsu215600China

Citrinin(CIT)is one of by-products by Monascus fermentation with known *** dihydro-citrinone,no other metabolites including the possible metabolic pathways have been found in vivo *** this study,we applied ultra-performance liquid chromatography-mass spectrometry(UPLC-MS)to analyze and identify potential CIT metabolites in the human cytochrome 450(P450)subtype *** new metabolites with liver microsomes incubation were first found,namely 3-hydroxy-citrinin(M1),4,5-ene-citrinin(M2),5-hydroxymethyl-citrinin(M3),and 7-hydroxy-citrinin(M4).We also found the distinguished levels of the four metabolites with the incubation of various P450 *** to the results of molecular docking prediction,it showed the metabolic correlation of CYP3A4 with M1,CYP1A2,CYP2C9,and CYP2D6 with M2,M3,and *** maximum level of M1 metabolite was found in the incubation with liver microsome and P450 ***,M1 and M4 metabolites were found in mice’s duodenum,jejunum,ileum,liver,kidney,and hippocampus,but not M2 and *** results indicated the mediation of citrinin metabolism by *** also suggested the concentration differences of metabolites with the incubation of different P450 subtypes.

关键词： Citrinin Metabolism Phase I Cytochrome 450

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Novel antioxidant peptide from broken rice resist H_(2)O_(2)-induced premature senescence in 2BS cells via PI3K/Akt and JNK/Bax signaling pathway

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Food Bioscience 2023年第2期52卷 345-355页

作者： Li-kun Ren Yang Yang Jing Fan Chun-min Ma Xin Bian Dang-feng Wang Yue Xu Bao-xiang Liu Na Zhang Key Laboratory of Food Science and Engineering of Heilongjiang Province College of Food EngineeringHarbin University of CommerceHarbinHeilongjiang150028China College of Food Science and Technology Jiangnan UniversityWuxiJiangsu214122China College of Food Science and Technology Bohai UniversityNational&Local Joint Engineering Research Center of StorageProcessing and Safety Control Technology for Fresh Agricultural and Aquatic ProductsJinzhouLiaoning121013China

SGDWSDIGGR(S-10-R)is a kind of antioxidant peptide derived from broken *** the present study,the effects of S-10-R against H_(2)O_(2)-induced cell damage and premature senescence in 2BS cells were *** results indicated that S-10-R could improve cell viability and mitochondrial membrane potential at least 1.06 and 1.12 folds compared with senescence ***,S-10-R inhibitedβ-galactosidase,and DNA damage alleviates the effect on 2BS senescence cells due to scavenging *** apoptosis rate can be reduced by 80.58%.Furthermore,S-10-R could inhibit PI3K and Akt phosphorylation,downregulate Bax and caspases-3 expression,and inhibit premature senescence through activating PI3K/Akt related intrinsic apoptotic signaling pathways and suppressing JNK/Bcl-2 related mitochondria-dependent *** present study confirmed the feasibility of antioxidants as anti-aging drugs,as well as provided a substantial basis for future application of S-10-R as a functional ingredient against oxidative stress-induced premature aging.

关键词： Peptide Human embryonic lung diploid fibroblast Anti-aging PI3K/Akt JNK/Bax

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Deformation Monitoring of Aircraft Wings Based on FBG Technology 4

Deformation Monitoring of Aircraft Wings Based on FBG Techno...

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4th International Computational Imaging Conference, CITA 2024

作者： Ying, Mei Rui, Du Yong, Yang Xuechao, Tian Xiaojun, Yang Ruiyan, Li Beijing Institute of Aerospace Control Devices Beijing Engineering Research Center of Optical Fiber Sensing System No.1 Fengying East Road Haidian District Beijing100094 China

ISBN: (纸本)9781510688834

In this paper, the technology of aircraft wing deformation monitoring based on fiber Bragg grating (FBG) sensor is studied. By comparing the limitations of traditional nondestructive monitoring technology,the advantages of FBG sensor in structural health monitoring are obtained. The theoretical basis and working principle of FBG sensor are introduced in detail.A FBG sensor system for wing structure monitoring is designed and constructed. After arranging a FBG sensor network and temperature sensors in series on the wing model, deformation monitoring under various load conditions was carried out. Experimental results show that FBG sensor can accurately measure wing deformation. It is proved that FBG sensor has good accuracy and high response speed, and has a great application prospect in the field of aircraft wing deformation monitoring, which can provide important technical support for aircraft structural health monitoring. © 2025 SPIE.

关键词： Structural health monitoring

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A Holistic Analysis and Experimental Testing of a Passive Heat Path for Electric Motors Slots

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IEEE Transactions on Transportation Electrification 2025年第3期11卷 8128-8138页

作者： Hebala, Ahmed Connor, Peter H. Nuzzo, Stefano Gerada, Chris Galea, Michael Arab Academy for Science Technology and Maritime Transport Electrical and Control Engineering department Alexandria5528341 Egypt Research Group Faculty of Engineering NottinghamNG7 2RD United Kingdom University of Modena and Reggio Emilia Department of Engineering Enzo Ferrari Modena41121 Italy University of Malta Department of Electrical Engineering MsidaMSD 2080 Malta

This article presents a thorough and broad analysis of the passive slot heat path (HP) concept. Six HP shapes are proposed and compared in terms of their combined thermal and electrical performance. Through an extensive search pool that covers a wide range of motor and slot designs and operating conditions, this article assesses the heat removal capabilities of the HP from the slot. The analysis is performed through a lumped parameter thermal network (LPTN) approach. Additionally, statistical analyses using correlations and linear regression models are carried out to improve understanding of this concept. Furthermore, a neural-network model is created to improve the regression model accuracy in predicting the slot temperature and temperature reduction. Finally, experimental testing and validation of the modeling are carried out on one of the six HP shapes. © 2015 IEEE.

关键词： Lumped parameter networks

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Trophic transfer of carbon-14 from algae to zebrafish leads to its blending in biomolecules and the dysregulation of metabolism via isotope effect

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National science Review 2025年第1期12卷 155-166页

作者： Shipeng Dong Renquan Deng Hang Zeng Pengfei Xue Sijie Lin Dongmei Zhou Liang Mao State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Chemistry and Biomedicine Innovation Center Nanjing University College of Environmental Science & Engineering State Key Laboratory of Pollution Control and Resource Reuse Tongji University

Carbon-14（C-14） has been a major contributor to the human radioactive exposure dose,as it is released into the environment from the nuclear industry in larger quantities compared to other *** most abundant nuclide enters the biosphere as organically bound C-14（OBC-14）,posing a potential threat to public ***,it remains unknown how this relatively low radiotoxic nuclide induces health risks via chemical effects,such as isotope *** establishing a trophic transfer model involving algae（Scenedesmus obliquus）,daphnia（Daphnia magna） and zebrafish（Danio rerio）,we demonstrate that rapid incorporation and transformation of inorganic C-14 by algae into OB C-14 facilitates the blending of C-14 into the biomolecules of *** find that internalized C-14 is persistently retained in the brain of zebrafish,affecting DNA methylation and causing alterations in *** isotope tracing metabolomics with C-14 exposure further reveals the involvement of C-14 in various critical metabolic pathways,including one-carbon metabolism and nucleotide *** thus characterize the kinetic isotope effects for12C/14C in the key reactions of these metabolic pathways through kinetic experiments and density functional theory computations,showing that the isotopic substitution of carbon in bio chemicals regulates metabolism by disrupting reaction ratios via isotope *** results suggest that inorganic C-14discharged by the nuclear industry can be biotransformed into OBC-14 to impact metabolism via isotope effects,providing new insights into understanding the health risk of C-14,which is traditionally considered as a low radiotoxic nuclide.

关键词： organically bound carbon-14 trophic transfer isotope effects metabolism dysregulation isotopic substitution

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Sensorless PMSM control system based on luenberger observer 4

Sensorless PMSM control system based on luenberger observer

引用

4th International Conference on Electronics Communication Technologies, ICECT 2022

作者： Gu, DaWei Liu, Tingzheng Yao, Yao Ye, Lunkuan Xu, Huang Shanghai Aerospace Control Technology Institute Shanghai China Shanghai Engineering Research Center of Servo System Shanghai China Aerospace System Engineering Shanghai China

At present, sensorless becomes a research hit for its lower cost and smaller size, among the present sensorless methods, Luenberger Observer has outstanding advantages for its dynamic performance, parameter robustness and high system stability. In this paper, the model of Luenberger Observer which is based on the state equation of permanent magnet synchronous motor (PMSM), and the changes of residence and induce which may lead to the error of the system are also analysed, in order to increase the accuracy of the system, current compensator is also added. In addition, 2 conditions which PMSM runs at low speed and high speed are analysed under the MATLAB model, the results show that the Luenberger Observer has better performance at high speed, but the noisy data of the useful signal is more at low speed. © Published under licence by IOP Publishing Ltd.

关键词： Equations of state

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Two-Stage Incentive Mechanism Based on a Cooperative Mode: A Stackelberg Game Approach

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IEEE Internet of Things Journal 2025年第13期12卷 24722-24737页

作者： Wang, Long Wang, Yingjie Teng, Haojun Jiao, Xiuzhen Sun, Meimei Yang, Jishen Cai, Zhipeng Yantai University School of Computer and Control Engineering Yantai264005 China China Judicial Big Data Research Institute Co. Ltd China Naval Aviation University China Georgia State University Department of Computer Science AtlantaGA30303 United States

With the explosive growth of mobile data, Mobile Crowd Sensing (MCS) has become a popular paradigm for large-scale data collection. The difficulty of data collection and the gaps in workers’ sensing capabilities are key factors to consider in worker recruitment and task assignment. To address these issues, we designed a two-stage cooperative incentive mechanism. In the first stage, a shelving level is introduced to assess task difficulty. Tasks are divided into high-quality and low-quality groups based on quality scores, while workers are categorized into high-ability and low-ability groups based on their historical performance. The Improved Chaotic Particle Swarm Optimization (ICPSO) algorithm is then applied to generate optimal task combinations. In the second stage, we address benefit distribution among cooperating workers by introducing time-dependent rewards and employing Stackelberg game theory to analyze the optimal completion time for both high-ability and low-ability workers. This analysis determines the optimal reward distribution and ability value allocation, with proof of the existence and uniqueness of a Nash equilibrium. Comparative experiments conducted on real-world datasets demonstrate that our cooperative task mechanism outperforms existing task bundling methods, validating its rationality and effectiveness. © 2014 IEEE.

关键词： Nash equilibrium

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Development of End Multi-Fingered Manipulator with Flexible Device

Development of End Multi-Fingered Manipulator with Flexible ...

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2023 IEEE International Conference on Robotics and Biomimetics, ROBIO 2023

作者： Chen, Zenghao Shi, Ran Wu, Pengfei Tao, Sheng Yan, Dan Cui, Ze Shanghai Aerospace Control Technology Institute Shanghai Engineering Research Center of Inertial Shanghai China Shanghai University School of Mechatronic Engineering and Automation Shanghai China

ISBN: (纸本)9798350325706

In this study, a flexible grasping terminal manipulator that uses the pneumatic vacuum principle and granular material as its base is given. Pneumatic device and granular material are wrapped in elastic film by the end-effector. Whatever complex shape structure the target object has, the flexible end can change shape and wrap around it to entirely grasp the object, it is easy to operate and effective. Create a model of a multi-finger paw with flexible ends that may be used on other things with form structures in addition to flat objects. The flexible end effector has improved application prospects and practical relevance thanks to the optimized design, which additionally offers high gripping speed, success rate, and stability. © 2023 IEEE.

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