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CSEE Journal of Power and Energy Systems 2024年第1期10卷 117-128页

作者： Guannan Lou Shanlin Li Wei Gu Quan Yang School of Electrical Engineering Southeast UniversityNanjingJiangsu 210096China the Jiangsu Provincial Key Laboratory of Smart Grid technology and Equipment Southeast University Dongguan Power Supply Bureau of Guangdong Power Grid Company Guangdong 523000China

In contemporary power grids or microgrids,harmonic distortion has emerged as one of the critical power quality issues for utility power grids,which has escalated especially due to the high penetration of power-electronic-converter-interfaced distributed generation(DG).This paper first illustrates the prevalent dispute revolving around the harmonic power sharing and distortion restraint,and subsequently proposes a consensusbased framework that facilitates an accurate sharing of harmonics among multi-DGs connected in parallel,with an effective suppression of the output voltage *** with the majority of existing studies addressing the issue of voltage harmonics at the point of common coupling(PCC),our method primarily emphasizes on the output voltage distortion since the power quality requirement for certain local critical loads is often known to be *** the help of adaptive regulation,the overall distortion produced at the output terminals of DGs can be retained within an acceptable *** working principle of the proposed control method,which is not only easy to implement but also independent of model parameters,is further described in *** the small-signal dynamic model,the system stability and robustness are *** hardware-in-the-loop(HIL)simulations aid in determining the outcome of the proposed strategy in microgrid control.

关键词： Distributed generation droop control harmonic power sharing microgrid voltage distortion mitigation

Planning of DC Electric Spring with Particle Swarm Optimization and Elitist Non-dominated Sorting Genetic Algorithm

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CSEE Journal of Power and Energy Systems 2024年第2期10卷 574-583页

作者： Qingsong Wang Siwei Li Hao Ding Ming Cheng Giuseppe Buja School of Electrical Engineering and Jiangsu Provincial Key Laboratory of Smart Grid technology and Equipment Southeast UniversityNanjing 210096China School of Software Engineering Southeast universitySuzhou 215123China

This paper addresses the planning problem of parallel DC electric springs (DCESs). DCES, a demand-side management method, realizes automatic matching of power consumption and power generation by adjusting non-critical load (NCL) and internal storage. It can offer higher power quality to critical load (CL), reduce power imbalance and relieve pressure on energy storage systems (RESs). In this paper, a planning method for parallel DCESs is proposed to maximize stability gain, economic benefits, and penetration of RESs. The planning model is a master optimization with sub-optimization to highlight the priority of objectives. Master optimization is used to improve stability of the network, and sub-optimization aims to improve economic benefit and allowable penetration of RESs. This issue is a multivariable nonlinear mixed integer problem, requiring huge calculations by using common solvers. Therefore, particle Swarm optimization (PSO) and Elitist non-dominated sorting genetic algorithm (NSGA-II) were used to solve this model. Considering uncertainty of RESs, this paper verifies effectiveness of the proposed planning method on IEEE 33-bus system based on deterministic scenarios obtained by scenario analysis.

关键词： DC distribution network DC electric spring non-dominated sorting genetic algorithm particle swarm optimization renewable energy source

Neural Dynamics for Cooperative Motion Control of Omnidirectional Mobile Manipulators in the Presence of Noises: A Distributed Approach

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IEEE/CAA Journal of Automatica Sinica 2024年第7期11卷 1605-1620页

作者： Yufeng Lian Xingtian Xiao Jiliang Zhang Long Jin Junzhi Yu Zhongbo Sun the Department of Control Engineering Changchun University of TechnologyChangchun 130012China IEEE the College of Information science and Engineering Northeastern UniversityShenyang 110819 the National Mobile Communications Research Laboratory Southeast UniversityNanjing 210096China the School of Information science and Engineering Lanzhou UniversityLanzhou 730000China the State Key Laboratory for Turbulence and Complex Systems Department of Advanced Manufacturing and RoboticsCollege of EngineeringPeking UniversityBeijing 100871China

This paper presents a distributed scheme with limited communications, aiming to achieve cooperative motion control for multiple omnidirectional mobile manipulators(MOMMs).The proposed scheme extends the existing single-agent motion control to cater to scenarios involving the cooperative operation of MOMMs. Specifically, squeeze-free cooperative load transportation is achieved for the end-effectors of MOMMs by incorporating cooperative repetitive motion planning(CRMP), while guiding each individual to desired poses. Then, the distributed scheme is formulated as a time-varying quadratic programming(QP) and solved online utilizing a noise-tolerant zeroing neural network(NTZNN). Theoretical analysis shows that the NTZNN model converges globally to the optimal solution of QP in the presence of noise. Finally, the effectiveness of the control design is demonstrated by numerical simulations and physical platform experiments.

关键词： Cooperative motion control noise-tolerant zeroing neural network(NTZNN) omnidirectional mobile manipulator(OMM) repetitive motion planning

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Simulation and Traffic Safety Assessment of Heavy-Haul Railway Train-Bridge Coupling System under Earthquake Action

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Structural Durability & Health Monitoring 2024年第6期18卷 835-851页

作者： Liangwei Jiang Wei Zhang Hongyin Yang Xiucheng Zhang Jinghan Wu Zhangjun Liu Engineering Research Center of Disaster Prevention and Mitigation of southeast Coastal Engineering Structures(JDGC03) Fujian Province UniversityPutian351100China School of Civil Engineering and Architecture Wuhan Institute of TechnologyWuhan430073China Hubei Provincial Engineering Research Center for Green Civil Engineering Materials and Structures Wuhan430073China

Aiming at the problem that it is difficult to obtain the explicit expression of the structural matrix in the traditional train-bridge coupling vibration analysis,a combined simulation system of train-bridge coupling system(TBCS)under earthquake(MAETB)is developed based on the cooperative work of MATLAB and *** simulation system is used to analyze the dynamic parameters of the TBCS of a prestressed concrete continuous rigid frame bridge benchmark model of a heavy-haul *** influence of different driving speeds,seismic wave intensities,and traveling wave effects on the dynamic response of the TBCS under the actions of the earthquakes is *** results show that the bridge displacement increase in magnitude in the lateral direction is more significant than in the vertical direction under the action of an *** traveling wave effect can significantly reduce the lateral response of the bridge,but it will significantly increase the train derailment *** the earthquake intensity exceeds 0.2 g,the partial derailment coefficient of the train has exceeded the limit value of the specification.

关键词： Train-bridge coupling vibration analysis dynamic response earthquake action traveling wave effect

Distributed generalized Nash equilibrium seeking:event-triggered coding-decoding-based secure communication

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science China(Information sciences) 2024年第7期67卷 271-284页

作者： Shaofu YANG Wenying XU Wangli HE Jinde CAO School of Computer science and Engineering Southeast University School of Mathematics Southeast University Key Laboratory of Advanced Control and Optimization for Chemical Processes East China University of Science and Technology

In this paper, we consider the distributed generalized Nash equilibrium(GNE) seeking problem in strongly monotone games. The transmission among players is implemented through a digital communication network with limited bandwidth. For improving communication efficiency or/and security, an event-triggered coding-decoding-based communication is first proposed, where the data(decision variable) are first mapped to a series of finite-level codewords and, only when an event condition is satisfied, then sent to the neighboring agents. Moreover, a distributed communication-efficient GNE seeking algorithm is constructed accordingly,and the overrelaxation scheme is further taken into consideration. Through primal-dual analysis, the proposed algorithm is proven to converge to a variational GNE with fixed step-sizes by recasting it as an inexact forward-backward iteration. Finally, numerical simulations illustrate the benefit of the proposed algorithms in terms of saving communication resources.

关键词： noncooperative games event-triggered communication coding-decoding quantization

A dynamic speed guidance method at on-ramp merging areas of urban expressway considering driving styles

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Frontiers of Engineering Management 2024年第1期11卷 92-106页

作者： Haoran LI Yunpeng LU Yaqiu LI Junyi ZHANG School of Automobile and Traffic Engineering Wuhan University of Science and TechnologyWuhan 430065China Suzhou Automotive Research Institute Tsinghua UniversitySuzhou 215134China School of Transportation Southeast UniversityNanjing 211189China Graduate School of Advanced science and Engineering Hiroshima UniversityHigashi Hiroshima 739-8529Japan

Dynamic speed guidance for vehicles in on-ramp merging zones is instrumental in alleviating traffic congestion on urban *** enhance compliance with recommended speeds,the development of a dynamic speed-guidance mechanism that accounts for heterogeneity in human driving styles is *** intelligent connected technologies that provide real-time vehicular data in these merging locales,this study proposes such a guidance ***,we integrate a multi-agent consensus algorithm into a multi-vehicle framework operating on both the mainline and the ramp,thereby facilitating harmonized speed and spacing ***,we conduct an analysis of the behavioral traits inherent to drivers of varied styles to refine speed planning in a more efficient and reliable ***,we investigate a closed-loop feedback approach for speed guidance that incorporates the driver’s execution rate,thereby enabling dynamic recalibration of advised speeds and ensuring fluid vehicular integration into the *** results substantiate that a dynamic speed guidance system incorporating driving styles offers effective support for human drivers in seamless mainline merging.

关键词： driving styles speed guidance driving safety assistance on-ramp merging

Toeless and reversible DNA strand displacement based on Hoogsteen-bond triplex

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Chinese Chemical Letters 2024年第5期35卷 330-337页

作者： Yang Qin Jiangtian Li Xuehao Zhang Kaixuan Wan Heao Zhang Feiyang Huang Limei Wang Hongxun Wang Longjie Li Xianjin Xiao Institute of Reproductive Health Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Pancreatic Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Wuhan Polytechnic university Wuhan 430023China

Strand displacement reaction is a crucial component in the assembly of diverse DNA-based nanodevices,with the toehold-mediated strand displacement reaction representing the prevailing ***,the single-stranded Watson-Crick sticky region that serves as the trigger for strand displacement can also cause leakage reactions by introducing crosstalk in complex DNA ***,we proposed the toeless and reversible DNA strand displacement reaction based on the Hoogsteen-bond triplex,which is compatible with most of the existing DNA *** demonstrated that our proposed reaction can occur at pH 5 and can be reversed at pH *** also observed an approximately linear relationship between the degree of reaction and pH within the range of pH 5-6,providing the potential for precise regulation of the ***,by altering the sequence orientation,we have demonstrated that our proposed reaction can be initiated or regulated through the same toeless mechanism without the requirement for protonation in low pH *** on the proposed reaction principle,we further constructed a variety of DNA nanodevices,including two types of DNA logic gates that rely on pH 5/pH 9 changes for initiating and reversing:the AND gate and the OR *** also successfully constructed a DNA Walker based on our proposed reaction modes,which can move along a given track after the introduction of a programmable DNA sequence and complete a cycle after 4 *** findings suggest that this innovative approach will have broad utility in the development of DNA circuits,molecular sensors,and other complex biological systems.

关键词： DNA strand displacement Toeless Triplex DNA strands Reversible DNA circuit DNA walker

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Resource Allocation for IRS Assistedmm Wave Wireless Powered Sensor Networks with User Cooperation

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工程与科学中的计算机建模(英文) 2024年第1期138卷 663-677页

作者： Yonghui Lin Zhengyu Zhu Network Center Zhengzhou UniversityZhengzhou450001China School of Electrical and Information Engineering Zhengzhou UniversityZhengzhou450001China

In this paper,we investigate IRS-aided user cooperation(UC)scheme in millimeter wave(mmWave)wirelesspowered sensor networks(WPSN),where two single-antenna users are wireless powered in the wireless energy transfer(WET)phase first and then cooperatively transmit information to a hybrid access point(AP)in the wireless information transmission(WIT)phase,following which the IRS is deployed to enhance the system performance of theWET *** maximized the weighted sum-rate problem by jointly optimizing the transmit time slots,power allocations,and the phase shifts of the *** to the non-convexity of the original problem,a semidefinite programming relaxation-based approach is proposed to convert the formulated problem to a convex optimization framework,which can obtain the optimal global *** results demonstrate that the weighted sum throughput of the proposed UC scheme outperforms the non-UC scheme whether equipped with IRS or not.

关键词： Intelligent reflecting surface millimeter wave wireless powered sensor networks user cooperation resource allocation

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限域空间反应合成氧化铁纳米颗粒

science China Materials 2024年第8期67卷 2447-2461页

作者：赵一帆吴临远李艳毛宇顾宁 Jiangsu Key Laboratory for Biomaterials and Devices School of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing 210096China Nanjing Key Laboratory for Cardiovascular Information and Health Engineering Medicine Institute of Clinical MedicineNanjing Drum Tower HospitalMedical SchoolNanjing UniversityNanjing 210093China

氧化铁纳米颗粒(IONPs)在生物医学领域具有广阔的应用前景.以共沉淀法、热分解法、溶胶-凝胶法与水热法为代表的传统方法,在控制IONPs合成反应过程的物质交换存在一定局限性,或影响产物纯度及功能性.在限域空间内进行的合成反应,有望为I... 详细信息

氧化铁纳米颗粒(IONPs)在生物医学领域具有广阔的应用前景.以共沉淀法、热分解法、溶胶-凝胶法与水热法为代表的传统方法,在控制IONPs合成反应过程的物质交换存在一定局限性,或影响产物纯度及功能性.在限域空间内进行的合成反应,有望为IONPs合成过程精准控制以及产物性能提升提供有效的解决方案.限域空间合成方法与细胞利用纳米反应器精确控制系列化学反应的生物合成过程类似.本文聚焦于IONPs的限域空间合成,综述了目前实验室构建限域空间反应器制备IONPs的策略,旨在加深对纳米反应器在合成IONPs过程中所发挥作用的理解并推进其应用,进而推动开发具有更优异生物相容性和诊疗效应的IONPs.

关键词：纳米反应器物质交换氧化铁纳米颗粒热分解法生物合成过程产物纯度产物性能空间合成

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Engagement of N^(6)-methyladenisine methylation of Gng4 mRNA in astrocyte dysfunction regulated by CircHECW2

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Acta Pharmaceutica Sinica B 2024年第4期14卷 1644-1660页

作者： Ying Bai Di Chang Hui Ren Minzi Ju Yu Wang Biling Chen Han Li Xue Liu Daxing Li Xinchen Huo Xiaofei Guo Mengze Tong Ying Tan Honghong Yao Bing Han Department of Pharmacology Jiangsu Provincial Key Laboratory of Critical Care MedicineSchool of MedicineSoutheast UniversityNanjing 210009China Department of Radiology Zhongda HospitalJiangsu Key Laboratory of Molecular and Functional ImagingMedical School of Southeast UniversityNanjing 210009China Co-Innovation Center of Neuroregeneration Nantong UniversityNantong 226001China Institute of Life sciences Key Laboratory of Developmental Genes and Human DiseaseSoutheast UniversityNanjing 210096China Center for Global Health School of Public HealthNanjing Medical UniversityNanjing 211166China

The N^(6)-methyladenosine(m^(6)A)modification is the most prevalent modification of eukaryotic mRNAs and plays a crucial role in various physiological processes by regulating the stability or function of target *** evidence has suggested that m6A methylation may be involved in the pathological process of major depressive disorder(MDD),a common neuropsychiatric disorder with an unclear ***,we found that the levels of the circular RNA HECW2(circHECW2)were significantly increased in the plasma of both MDD patients and the chronic unpredictable stress(CUS)mouse ***,the downregulation of circHECW2 attenuated astrocyte dysfunction and depression-like behaviors induced by ***,we demonstrated that the downregulation of circHECW2 increased the expression of the methylase WTAP,leading to an increase in Gng4 expression via m^(6)A *** findings provide functional insight into the correlation between circHECW2 and m^(6)A methylation,suggesting that circHECW2 may represent a potential target for MDD treatment.

关键词： N^(6)-Methyladenosine Depression circHECW2 Astrocyte WTAP Ubiquitination GNG4 Dysfunction