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Hierarchical Game Approach for Optimization of Regional Integrated Energy System Clusters Considering Bounded Rationality

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CSEE Journal of Power and Energy systems 2024年第1期10卷 302-313页

作者： Lei Dong Mengting Li Junjie Hu Sheng chen Tao Zhang Xinying Wang Tianjiao pu school of Electrical and Electronic Engineering North China Electric Power UniversityBeijing 102206China Department of Artificial Intelligence Application Research China Electric Power Research InstituteBeijing 100192China key laboratory of Smart Grid of Ministry of Education Key Laboratory of Smart Energy&Information Technology of Tianjin MunicipalityTianjin UniversityTianjin 300072China

Regional integrated energy system(RIES)cluster,i.e.,multi-source integration and multi-region coordination,is an effective approach for increasing energy utilization *** hierarchical architecture and limited information sharing of RIES cluster make it difficult for traditional game theory to accurately describe their game ***,a hierarchical game approach considering bounded rationality is proposed in this paper to balance the interests of optimizing RIES cluster under privacy protection.A Stackelberg game with the cluster operator(CO)as the leader and multiple RIES as followers is developed to simultaneously optimize leader benefit and RIES utilization ***,a slight altruistic function is introduced to simulate the game behavior of each RIES agent on whether to cooperate or *** introducing an evolutionary game based on bounded rationality in the lower layer,the flaw of the assumption that participants are completely rational can be ***,for autonomous optimal dispatching,each RIES is treated as a prosumer,fexibly switching its market participation role to achieve cluster coordination *** studies on a RIES cluster verify effectiveness of the proposed approach.

关键词： Bounded rationality coordinated optimization evolutionary game regionaIilntegrated energysystem stackelberg game

Wireless measurement of orthodontic forces in invisible aligners

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Medicine in Novel Technology and Devices 2024年第1期21卷 64-70页

作者： Siyu Wang Bingxin Xu Xiaokang Wang Xinfang Li Bangzheng pu Gui chen Jianmin han Shengzhao Xiao Yubo Fan Jiebo Li key laboratory of Biomechanics and Mechanobiology(Beihang University) Ministry of EducationInstitute of Medical PhotonicsBeijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringBeihang UniversityBeijing100191China Department of Orthodontics Peking University School and Hospital of Stomatology&.National Clinical Research Center for Oral Diseases&.National Engineering Laboratory for Digital and Material Technology of Stomatology&.Beijing Key Laboratory of Digital Stomatology&.Research Center of Engineering and Technology for Computerized Dentistry Ministry of HealthBeijing100081China Department of Dental Materials Peking University School and Hospital of Stomatology&National Center of Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Laboratory for Digital and Material Technology of Stomatology&Beijing Key Laboratory of Digital Stomatology&Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health&NMPA Key Laboratory for Dental MaterialsBeijing100081China Department of Orthodontics Shanghai Ninth People's HospitalCollage of StomatologyShanghai Jiao Tong University School of MedicineNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of Stomatology&Shanghai Research Institute of StomatologyShanghaiChina

Invisible orthodontic treatment is an effective form of malocclusion treatment favored in recent *** magnitude of its orthodontic force has a crucial impact on the outcome of the treatment and has gained a high level of clinical ***,there are very few explorations of in vivo measurements of orthodontic force,and existing studies are limited to a large number of couplings,which are inconvenient for clinical *** this work,we developed a wireless flexible measurement system that allows quantitative measurement of the orthodontic force of an invisible aligner on a dental *** system is wireless,tiny,flexible,fast responding,and has a range suitable for the range of orthodontic *** show the difference in the orthodontic force applied to different tooth positions and the difference in the orthodontic force applied to different positions of the same *** addition,the system can evaluate the mechanical differences between aligners of different brands and materials as well as the deviation of fabrication *** system provides a test tool and evaluation method for future real-time assessment of clinical orthodontic forces.

关键词： Orthodontic forces Wireless measurement systems Flexible sensors Invisible orthodontics Performance evaluation Quantitative measurements

IDENTIFICATION FOR WIENER systems WITH INTERNAL NOISE

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Journal of systems science & Complexity 2008年第3期21卷 378-393页

作者： qijiang song.hanfu chen key laboratory of systems and control Institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China

This paper considers identification of Wiener systems for which the internal variables and output are corrupted by noises. When the internal noise is a sequence of independent and identically distributed （lid） Gaussian random variables, by the Weierstrass transformation （WT） the system under consideration turns to be a Wiener system without internal noise. The nonlinear part of the latter is nothing else than the WT of the nonlinear function of the original system, while the linear subsystem is the same for both systems before and after WT. Under reasonable conditions, the recursive identification algorithms are proposed for the transformed Wiener system, and strong consistency for the estimates is established. By using the inverse WT the nonparametric estimates for the nonlinearity of the original system are derived, and they are strongly consistent if the nonlinearity in the original system is a polynomial, Similar results also hold in the case where the internal noise is non-Gaussian. Simulation results are fully consistent with the theoretical analysis.

关键词： Recursive identification stochastic approximation strong consistency Wiener system Weierstrass transformation

一种用于大视场成像和偏振光谱探测的微型可重构超构光学系统

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Engineering 2024年第4期35卷 67-73页

作者： Fei Zhang Minghao Liao Mingbo pu Yinghui Guo Lianwei chen Xiong Li Qiong He Tongtong Kang Xiaoliang Ma Yuan Ke Xiangang Luo State key laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering Institute of Optics and ElectronicsChinese Academy of SciencesChengdu 610209China National key laboratory of Optical Field Manipulation science and Technology Chinese Academy of SciencesChengdu 610209China School of Optoelectronics University of Chinese Academy of SciencesBeijing 100049China Research Center on Vector Optical Fields Institute of Optics and ElectronicsChinese Academy of SciencesChengdu 610209China Tianfu Xinglong Lake laboratory Chengdu 610299China

Wide-angle imaging and spectral detection play vital roles in tasks such as target tracking,object classification,and ***,limited by their intrinsically different architectures,as determined by frequency dispersion requirements,their simultaneous implementation in a shared-aperture system is ***,we propose a novel concept to realize reconfigurable dual-mode detection based on electrical-control tunable *** a proof-of-concept demonstration,the simultaneous implementation of wide-angle imaging and polarization-spectral detection in a miniature sharedaperture meta-optical system is realized for the first time via the electrical control of cascaded catenary-like *** proposed system supports the imaging(spectral)resolution of approximately 27.8 line-pairs per millimeter(lp·mm^(-1);~80 nm)for an imaging(spectral)mode from 8 to 14 μ*** system also bears a large field of view of about 70°,enabling multi-target recognition in both *** work may promote the miniaturization of multifunctional optical systems,including spectrometers and polarization imagers,and illustrates the potential industrial applications of meta-optics in biomedicine,security,space exploration,and more.

关键词： Metasurfaces Reconfigurable Imaging Spectral

Rotation-translation coupling of a double-headed Brownian motor in a traveling-wave potential

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Frontiers of physics 2021年第3期16卷 165-175页

作者： Wei-Xia Wu chen-pu Li Yan-Li song Ying-Rong han Zhi-Gang Zheng science Education Department Beijing Institute of Graphic CommunicationBeijing102600China College of science Hebei University of ArchitectureZhangjiakou075000China School of science Tianjin UniversityTianjin300072China School of science Hebei University of TechnologyTianjin300401China institute of systems science and College of Information science and Engineering Huaqiao UniversityXiamen361021China

Considering a double-headed Brownian motor moving with both translational and rotational degrees of freedom,we investigate the directed transport properties of the system in a traveling-wave *** is found that the traveling wave provides the essential condition of the directed transport for the system,and at an appropriate angular frequency,the positive current can be optimized.A general current reversal appears by modulating the angular frequency of the traveling wave,noise intensity,external driving force and the rod *** transforming the dynamical equation in traveling-wave potential into that in a tilted potential,the mechanism of current reversal is *** both cases of Gaussian and Lévy noises,the currents show similar dependence on the ***,the current in the tilted potential shows a typical stochastic resonance *** external driving force has also a resonance-like effect on the current in the tilted *** the current in the traveling-wave potential exhibits the reverse behaviors of that in the tilted ***,the currents obviously depend on the stability index of the Lévy noise under certain conditions.

关键词： Brownian motor rotation-translation coupling traveling-wave potential current reversal

Progress in heavy ion cancer therapy at IMP and future development

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Malignancy Spectrum 2024年第2期1卷 91-98页

作者： Qiang Li Xinguo Liu Zhongying Dai Pengbo He Yuanyuan Ma Guosheng Shen Xiaodong Jin Fei Ye Xiaogang Zheng Ting Zhao Hui Zhang Zheng Li Bingwen Zou Yuehu pu Weiqiang chen institute of Modern Physics Chinese Academy of SciencesLanzhouGansuChina key laboratory of Heavy Ion Radiation Biology and Medicine of chinese academy of sciences LanzhouGansuChina Gansu Provincial key laboratory of Basic Research on Heavy Ion Radiation Application in Medicine LanzhouGansuChina University of chinese academy of sciences BeijingChina Division of Thoracic Tumor Multimodality Treatment and Department of Radiation Oncology Cancer CenterWest China HospitalSichuan UniversityChengduSichuanChina Medical Equipment Innovation Research Center West China HospitalSichuan UniversityChengduSichuanChina

Basic research on heavy ion cancer therapy such as radiobiology, medicalphysics, and therapeutic technique has been conducted at the institute ofModern Physics (IMP), chinese academy of sciences since 1995. Based on theachievements acquired in the basic research and the requirements for a heavyion accelerator for radiotherapy purposes, a dedicated heavy ion therapy facilitynamed Heavy Ion Medical Machine (HIMM) was designed at IMP andconstructed in Wuwei, china. The HIMM facility consists of two electroncyclotron resonance ion sources, one cyclotron as the injector and onesynchrotron as the main accelerator, and four different treatment roomsequipped with passive or active beam delivery systems, and accelerates carbonions up to 400 MeV/u. After the performance inspection of HIMM organized bythe National Medical Device Inspection Center, preclinical tests like cell andanimal radiobiological experiments and dosimetric verification using anthropomorphicphantoms for elucidating the biophysical properties of the carbon ionbeams provided by HIMM were carried out. According to the chinese medicaldevice regulations, a clinical trial in which 46 tumor patients were recruited andtwo hospitals participated was conducted in the HIMM facility, aiming atevaluating the treatment safety and short-term efficacy of the medical *** success of the clinical trial helped the HIMM facility be authorized by thechinese government as a class III medical device. In this paper, all the aspectsmentioned above are introduced and discussed, and implications for futureimprovements are also given.

关键词： heavy ion cancer therapy clinical trial performance inspection dosimetric verification medical device

面向客流聚集风险防控的城轨列车实时调度模型与算法

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交通运输工程与信息学报 2024年第2期22卷 90-103页

作者：陈星阴佳腾高原蒲凡杨立兴南昌轨道交通集团有限公司南昌330220 北京交通大学系统科学学院北京100044 北京交通大学先进轨道交通自主运行全国重点实验室北京100044 北京理工大学管理与经济学院北京100081

“后疫情时代”下,我国城市轨道交通客流量快速反弹并进一步持续攀升。在此背景下,以缓解车站拥挤度为目标,研究面向客流聚集风险防控的列车实时调度问题具有重要的现实意义。在线路运营受到异常事件干扰条件下,结合列车跳停策略和运行... 详细信息

“后疫情时代”下,我国城市轨道交通客流量快速反弹并进一步持续攀升。在此背景下,以缓解车站拥挤度为目标,研究面向客流聚集风险防控的列车实时调度问题具有重要的现实意义。在线路运营受到异常事件干扰条件下,结合列车跳停策略和运行图协同调整,以最小化线路车站拥挤度为目标函数,以车厢满载率为模型约束,建立列车实时调度混合整数线性规划模型。为提高模型求解效率,提出可变邻域搜索算法,首先基于线性规划松弛原理设计模型初始解的启发式计算规则,之后基于可变邻域搜索算法寻找初始解邻域内的近似最优解作为列车实时调度问题的最终解。使用北京地铁亦庄线实际数据进行了仿真实验,仿真结果表明:以标准“站站停”策略生成的运行图调整方案作为评价基准,采用可变邻域搜索算法计算得到的列车实时调度策略可降低线路拥挤度约67.56%,减少约38.28%的线路最大断面客流量,计算时间在1 min左右,可满足列车实时调度的需求,验证了本文提出的列车实时调度模型与求解算法能有效降低车站拥挤度、均衡线路客流的断面分布,对突发大客流带来的车站乘客聚集问题具有较好的调整效果。

关键词：城市轨道交通列车实时调度客流优化列车跳停混合整数线性规划可变邻域搜索

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嵌入式机器人控制系统实践教学模式研究

机电产品开发与创新 2024年第4期37卷 152-154页

作者：蒲茜陈瑜阮涛北京交通大学机械与电子控制工程学院北京100044 北京科技成果转化服务中心北京100080

本文深入探讨了嵌入式机器人控制系统实践教学中的问题及改革方法。首先,分析了当前实践教学存在与先修课程重复、实践场景单一、与人工智能技术关联少以及对机器人基础知识介绍不足等问题。为解决这些问题,本文对课程知识体系进行重构... 详细信息

本文深入探讨了嵌入式机器人控制系统实践教学中的问题及改革方法。首先,分析了当前实践教学存在与先修课程重复、实践场景单一、与人工智能技术关联少以及对机器人基础知识介绍不足等问题。为解决这些问题,本文对课程知识体系进行重构,围绕课程目标构建了精简高效的知识体系,去除重复内容,突出关键知识点,并加强对机器人发展历程及基础知识的介绍,以强化学生对核心概念和技能的掌握。此外,本研究通过虚实结合的教学方法丰富实践场景,加强人工智能技术应用,以提升学生的综合能力和对机器人技术的全面认识。最终,课题组通过实验课程的目标达成情况进行了教学模式改革的验证,证明了相关改革措施有助于提高教学质量,培养学生的实践能力和创新精神。

关键词：智能嵌入式系统机器人控制教学改革虚实融合

Directed transport of coupled Brownian motors in a two-dimensional traveling-wave potential

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chinese Physics B 2020年第9期29卷 244-248页

作者： Wei-Xia Wu Zhi-Gang Zheng Yan-Li song Ying-Rong han Zhi-cheng Sun chen-pu Li science Education Department Beijing Institute of Graphic CommunicationBeijing 102600China institute of systems science and College of Information science and Engineering Huaqiao UniversityXiamen 361021China School of science Tianjin UniversityTianjin 300072China School of science Hebei University of TechnologyTianjin 300401China School of Printing and Packaging Engineering Beijing Institute of Graphic CommunicationBeijing 102600China College of science Hebei Institute of Architecture and Civil EngineeringZhangjiakou 075000China

Considering an elastically coupled Brownian motors system in a two-dimensional traveling-wave potential, we investigate the effects of the angular frequency of the traveling wave, wavelength, coupling strength, free length of the spring, and the noise intensity on the current of the system. It is found that the traveling wave is the essential condition of the directed transport. The current is dominated by the traveling wave and varies nonmonotonically with both the angular frequency and the wavelength. At an optimal angular frequency or wavelength, the current can be optimized. The coupling strength and the free length of the spring can locally modulate the current, especially at small angular frequencies. Moreover, the current decreases rapidly with the increase of the noise intensity, indicating the interference effect of noise on the directed transport.

关键词： directed transport Brownian motors coupled system two-dimensional traveling-wave potential