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中华医学杂志(英文版) 2024年第17期137卷 2125-2127页

作者： Hou Ling Chen Xuefeng du hongwei Zhang Jianping Cheng Xinran Pan Jiayan Pan Hui Liao Wei Luo Xiaoping Fu Junfen Department of Pediatrics Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China Department of Endocrinology Children’s Hospital of Zhejiang University School of Medicine National Clinical Research Center for Child Health Zhejiang University School of Medicine Hangzhou Zhejiang China Department of Paediatrics First Hospital of Jilin University Changchun Jilin China Department of Pediatrics Ningbo Women &amp Children’s Hospital Ningbo Zhejiang China Department of Pediatric Endocrine Genetics and Metabolism Chengdu Women’s and Children’s Center Hospital Chengdu Sichuan China Department of Pediatrics Wuhu First People’s Hospital Wuhu Anhui China Department of Endocrinology Key Laboratory of Endocrinology of National Health Commission State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College Hospital Chinese Academy of Medical Science and Peking Union Medical College Beijing China Department of Pediatrics The First Affiliated Hospital of Army Medical University (Third Military Medical University) Chongqing China

IDDNet:一个基于双域深度交互方法的多模态快速磁共振重建卷积神经网络

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中国科学技术大学学报 2024年第3期54卷 7-17,I0007页

作者：曹怡杜宏伟中国科学技术大学信息科学技术学院安徽合肥230026

从欠采样k空间矩阵中精确重建完整图像是加速磁共振成像(MRI)的一种可行方法。近年来,许多基于深度学习的方法被用于加速MRI重建。在这些方法中,跨域方法已被证明是有效的。然而,现有的跨域重建算法将图像域和k空间网络顺序级联,忽略了... 详细信息

从欠采样k空间矩阵中精确重建完整图像是加速磁共振成像(MRI)的一种可行方法。近年来,许多基于深度学习的方法被用于加速MRI重建。在这些方法中,跨域方法已被证明是有效的。然而,现有的跨域重建算法将图像域和k空间网络顺序级联,忽略了不同域之间的相互作用,导致重建精度不足。为有效利用来自多个MR域和模态的相关信息,本文提出了一个具有辅助模态的深度交互双域网络(IDDNet)以加速MRI重建。IDDNet首先从图像域的低分辨率目标模态中提取浅层特征来获得视觉表征。在接下来的特征处理中,本文设计了一种双分支并行交互网络架构,同时从双域的相关信息中提取深度特征,从而避免了顺序连接时不同域间的冗余优先级。此外,该模型利用辅助模态的附加信息来细化结构,提高重建精度。在MICCAI BraTS 2019脑部和fastMRI膝关节数据集上,采取不同采样模板和加速速率的大量实验表明,IDDNet实现了优异的MRI重建性能。

关键词：磁共振重建深度学习双域多模态

基于集群动态划分的配电网无功电压自律-协同控制

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电力系统自动化 2024年第10期48卷 171-181页

作者：杜红卫尉同正夏栋周苏洋韩韬南瑞集团有限公司(国网电力科学研究院有限公司) 江苏省南京市211106 国电南瑞科技股份有限公司江苏省南京市211106 东南大学电气工程学院江苏省南京市210096

针对高渗透率分布式光伏接入配电网导致的电压越限问题,以及传统集中式控制面临的通信延时、计算量大与控制设备过多等问题,提出一种基于集群动态划分的配电网无功电压自律-协同控制方法。首先,建立日前集中式无功电压优化模型,安排离... 详细信息

针对高渗透率分布式光伏接入配电网导致的电压越限问题,以及传统集中式控制面临的通信延时、计算量大与控制设备过多等问题,提出一种基于集群动态划分的配电网无功电压自律-协同控制方法。首先,建立日前集中式无功电压优化模型,安排离散无功补偿设备投退计划,日内调度以节点电压偏差最小为目标建立日内无功电压滚动优化模型,结合同步型交替方向乘子法实现各集群间的分布式协调控制;然后,通过群内本地电压实时控制抑制群内节点电压的波动;最终,以改进的IEEE 33节点系统及某地实际60节点配电网为例,验证了该方法的正确性与有效性。

关键词：配电网分布式电源集群划分同步型交替方向乘子法无功电压优化协同控制

基于综合性评价框架的河北省共同富裕发展水平评价

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治理现代化研究 2024年第5期40卷 33-42页

作者：杜宏巍中国社会科学院中国社会科学评价研究院北京100732

共同富裕是中国共产党的历史使命,是中国特色社会主义的本质要求。基于共同富裕的理论内涵和河北省的现实实践,构建整体与分类相结合、时间与空间相结合的综合性评价框架,研制河北省共同富裕指标体系,对河北省共同富裕水平开展评价,把... 详细信息

共同富裕是中国共产党的历史使命,是中国特色社会主义的本质要求。基于共同富裕的理论内涵和河北省的现实实践,构建整体与分类相结合、时间与空间相结合的综合性评价框架,研制河北省共同富裕指标体系,对河北省共同富裕水平开展评价,把握河北省各设区市扎实推进共同富裕建设的现实情况。研究发现:河北省具备一定的共同富裕建设基础,11个设区市的共同富裕总指数相对均衡;各设区市的主体性、共享性和发展性相对不均衡,应重点提高发展质量;主体性、共享性和发展性的耦合协调增速较高,四类都市圈发展各具特点;河北省共同富裕水平在空间整体上呈负相关,空间发展的差异性较低。

关键词：共同富裕指数综合性评价框架主体性共享性发展性

MBE与TBE模式在《运动医务监督》课程中的应用效果研究

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中国继续医学教育 2024年第5期16卷 140-143页

作者：杜鸿伟张斌锦州医科大学运动康复教研室辽宁锦州121001 锦州医科大学公共体育教研室辽宁锦州121001

目的探讨保留式双语教学(maintenance bilingual education,MBE)和过渡式双语教学(transitional bilingual education,TBE)模式在运动康复专业《运动医务监督》课程教学中的应用效果,为普通高校双语教学模式的选择提供合理化建议。方法... 详细信息

目的探讨保留式双语教学(maintenance bilingual education,MBE)和过渡式双语教学(transitional bilingual education,TBE)模式在运动康复专业《运动医务监督》课程教学中的应用效果,为普通高校双语教学模式的选择提供合理化建议。方法于2022年8月—2023年1月,选择锦州医科大学运动康复专业2021级两个自然班各26名、27名学生为研究对象,分为试验组和对照组。试验组采用MBE模式,对照组采用TBE模式。通过问卷调查的方式对两组学习效果、学习满意度、对专业知识的学习等方面进行评估。结果经实验教学研究及分析,将试验组和对照组期末考试成绩进行分段,显示达到良好以上者试验组的比例为66.7%,对照组的比例为53.8%,试验组的良好率高于对照组;试验组有1名同学达到优秀,对照组没有;及格区间内,试验组为1名(3.7%),对照组为3名(11.5%)。2组均没有不及格学生。试验组和对照组的期末成绩:试验组为(81.83±5.09)分,对照组为(78.75±4.73)分,试验组高于对照组,差异有统计学意义(P <0.05)。结论对于普通高校而言,从考核成绩、学生满意度等方面来看,MBE模式的教学效果均优于TBE模式。目前主要存在的问题是中英文对照教材的缺失,授课形式方面需要教师在多媒体课件、预习资料、课堂表达英语占用比例等方面加以改进。

关键词：保留式教学模式过渡式教学模式双语教学模式《运动医务监督》课程教学效果运动康复

Design and application of microgrid operation control system based on IEC 61850

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Journal of Modern Power Systems and Clean Energy 2014年第3期2卷 256-263页

作者： Wen LU Yangdong ZHAO Weixing LI hongwei du School of Electrical Engineering and Automation Harbin Institute of Technology UniversityHarbin 150001China State Grid Electric Research Institute Nanjing 211000China

We consider the microgrid operation control technology including design of microgrid operation control system,MG control device and control *** pay much attention on microgrid operation control device which is core control *** order to solve the contradiction of quick speed about microgrid operation mode shift and slow speed about the management system,threelayers control architecture based on IEC61850 is designed and adaptive control strategy is used on MG operation control *** system has been applied in a distributed generation/energy storage power *** actual operation shows that the system can be effectively and flexibly connected to distribution network.

关键词： Distributed generator Microgrid Selfadaptive operation control V/f control IEC61850

Integrated Distribution Management System:Architecture,Functions,and Application in China

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Journal of Modern Power Systems and Clean Energy 2022年第2期10卷 245-258页

作者： Wenchuan Wu Penghua Li Bin Wang Yingshang Liu Tao Xu hongwei du Yan He the State Key Laboratory of Power Systems Department of Electrical EngineeringTsinghua UniversityBeijing 100084China the Electric Power Control Center of China Southern Power Grid Corporation GuangzhouChina the National Electric Power Control Center of State Grid Corporation of China BeijingChina NARI Technology Co. Ltd.NanjingChina Beijing Guoke Hengtong Technology Co. Ltd.BeijingChina

As massive distributed energy resources(DERs)are integrated into distribution networks(DNs)and the distribution automation facilities are widely deployed,the DNs are evolving to active distribution networks(ADNs).This paper introduces the architecture and main function modules of an integrated distribution management system(IDMS)and its applica-tions in *** system consists of three subsystems,including the real-time operation and control system(OCS),outage management system(OMS),and operator training simulator(OTS).The OCS has a hierarchical architecture with three levels,including the local controller for DER clusters,the optimization of DNs incorporated with multi-clusters,and the coordina-tion operation of integrated transmission&distribution(T&D)*** OMS is developed based on the geographical information system(GIS)and coordinated with *** in the OTS,both the ADN and its host transmission network(TN)are simulated to make the simulation results more *** main functions of the three subsystems and their interaction data flows are described and some typical application scenarios are also presented.

关键词： Active distribution network(ADN) integrated distribution management system(IDMS) operation and control system(OCS) outage management system(OMS) operator training simulator(OTS) geographical information system(GIS).

The relative importance of competition to contagion:evidence from the digital currency market

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Financial Innovation 2019年第1期5卷 692-710页

作者： Peng Xie Jiming Wu hongwei du College of Business and Economics California State UniversityEast Bay VBT 32525800 Carlos Bee BlvdHaywardCA 94542USA

How does the valuation change of an industry leader influence its competitors?Does it induce a competitive effect or a contagion effect?What are the driving forces of such influences?We attempted to answer these questions within digital currency *** found that both close and distant competitors against an industry leader experience high competitive effects,while moderate competitors experience high contagion ***,we empirically demonstrated how this Ushaped pattern reduces to a linear relationship depending on the industry ***,we identified eight distinct information categories from a social media platform of the industry leader and compared the influence of the eight information categories on the industry leader’s *** analysis suggests that the relative importance of the competitive effect to the contagion effect in the industry depends on the category of the information.

关键词： Social media Contagion Competition Information spillover Digital economy

Comprehensive Exergoeconomic Analysis and Optimization of a Novel Zero-Carbon-Emission Multi-Generation System based on Carbon Dioxide Cycle

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Journal of Thermal Science 2024年第3期33卷 1065-1081页

作者： SUN Yan LI hongwei WANG Di du Changhe School of Energy and Power Engineering Northeast Electric Power UniversityJilin132012China School of Automation Engineering Northeast Electric Power UniversityJilin132012China Xi’an Institute of Electromechanical Information Technology Xi’an710065China

This paper aims to conduct a comprehensive exergoeconomic analysis of a novel zero-carbon-emission multi-generation system and propose a fast optimization method combined with machine *** detailed exergoeconomic analysis of a novel combined power,freshwater and cooling multi-generation system is performed in this *** exergoeconomic analysis model is established by exergy flow theory.A comprehensive exergy,exergoeconomic and environmental analysis is carried *** critical decision variables are researched to bring out effects on the multi-generation system exergoeconomic performance.A novel fast optimization method combining genetic algorithm and Bagging neural network is *** advanced nature comparison is made between the proposed system and four similar *** display that increasing the turbine inlet temperature can improve exergy efficiency and decrease the total product unit *** multi-generation system exergy destruction directly determines exergy efficiency and total exergy destruction cost *** total product unit cost in the cost optimal design case is reduced by 7.7%and 25%,respectively,compared with exergy efficiency optimal design case and basic design *** with four similar cases,the proposed multi-generation system has great advantages in thermodynamic performance and exergoeconomic *** paper can provide research methods and ideas for performance analysis and fast optimization of multi-generation system.

关键词： waste heat recovery exergoeconomic analysis supercritical carbon dioxide optimization machine learning

Performance Design of High-Temperature Chloride Salts as Thermal Energy Storage Material

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Journal of Thermal Science 2024年第2期33卷 479-490页

作者： ZHAO Le WANG Jingyao CUI Liu LI Baorang du Xiaoze WU hongwei Key Laboratory of Power Station Energy Transfer Conversion and System(North China Electric Power University) Ministry of EducationBeijing102206China School of Energy and Power Engineering Lanzhou University of TechnologyLanzhou730050China School of Physics Engineering and Computer ScienceUniversity of HertfordshireHatfieldAL109ABUK

The chloride salts have great potential used as high-temperature thermal energy storage(TES) medium for the concentrated solar power *** this study,LiCl,KCl and CaCl_(2) were selected as energy storage materials in order to further broaden the working temperature of ternary chloride salt and improve its energy storage *** new high-temperature energy storage ternary chloride composed of LiCl,KCl,and CaCl_(2) was developed based on the phase diagram generated by *** components of LiCl-KCl-CaCl_(2) with the mass ratio of 37.85%-53.38%-8.77%,30.90%-13.82%-55.28% and 1.78%-18.61%-79.61% were developed,of which the corresponding melting temperature(T_(m)) 340.93,433.57 and 626.85℃,respectively,was obtained *** that T_(m) of the third group of salts was too high,only the first two groups of salts were *** test showed that the actual melting point was only 0.46% and 1.64% different from the melting point predicted by *** thermal properties of the two ternary chloride salts were also *** solid and liquid-specific heat of ternary salts was determined by DSC using sapphire as the standard *** vapor pressure and decomposition temperature of ternary chloride salts were *** results showed that the vapor pressure of salt 1 was almost constant below 650℃ by ***,the TG results showed that the upper working temperature of salt 1 was 650℃ under the air *** addition,the ternary chloride salts after short-term cycling still exhibited excellent thermal properties,which revealed that these good thermal properties make them have broad application prospects in high-temperature thermal energy storage systems.

关键词： chloride salts thermal energy storages thermal properties thermal stability