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Prevalence of pulmonary embolism at autopsy among elderly patients in a Chinese general hospital

Journal of Geriatric Cardiology 2016年第11期13卷 894-898页

作者： ji-li yun Xiao-Ying li Medical School of Chinese PLA General Hospital Beijing China Department of Geriatric Cardiology Chinese PLA General Hospital Beijing China

Objectives To investigate the prevalence and characteristics of pulmonary embolism （PE） at autopsy in a Chinese general hospital over a period of 10 years, and to evaluate the antemortem achievement of the prophylaxis, diagnosis, and treatment of PE. Methods All medical records of deaths from the West Branch of the Chinese People＇s liberation Army （PLA） General Hospital were retrospectively re- viewed, for the period of January 1, 2006 to December 31, 2015. Cases in which autopsies had been performed were identified and further analyzed. The numbers and detailed characteristics of patients who had PEs were noted. Prophylactic measures, along with diagnosis and treatment of PE, were recorded, if performed. Results During the 10-year period, 1057 patients died in the study hospital and 278 necrop- sies were performed （autopsy rate： 26.3%）. Nine patients were found to have PE （3.2%）, and in seven of these patients （2.5%）, the PE was considered to be fatal. Embolisms were found in the trunk and bilateral main branches of the pulmonary artery tree in all seven of the fatal PE cases. Right intracardiac thrombosis was detected in five of the nine PE patients （55.6%）. All patients with PE had been hospitalized in medical departments, and only one had undergone surgery during hospitalization. Antemortem prophylaxis was performed in two of the nine PE cases （22.2%）. None of the 9 patients had received a clinical diagnosis of PE before death. Conclusions The incidence of and death rate associated with PE may vary among different races and regions. Continuous monitoring of PE by means of necropsy in certain representative medical institutions is necessary.

关键词： Autopsy Epidemiology Pulmonary embolism

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离散时滞随机系统的一种均方有界事件驱动控制策略

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电子学报 2020年第3期48卷 524-530页

作者：高毅李云骥彭力江苏省传感网应用工程技术研究开发中心无锡职业技术学院江苏无锡214121 物联网技术应用教育部工程研究中心江南大学江苏无锡214122

针对状态时滞随机系统,应用事件驱动近似二次性能指标和随机均方有界理论,同时考虑控制输入和事件决策,设计了反馈控制器和相应的事件驱动控制策略.基于状态反馈的事件驱动策略同时使用当前状态和时滞状态进行事件的触发,并利用近似二... 详细信息

针对状态时滞随机系统,应用事件驱动近似二次性能指标和随机均方有界理论,同时考虑控制输入和事件决策,设计了反馈控制器和相应的事件驱动控制策略.基于状态反馈的事件驱动策略同时使用当前状态和时滞状态进行事件的触发,并利用近似二次性能指标进行约束;基于输出反馈的事件驱动策略使用当前状态进行事件的触发.最后,通过实验进行了仿真,对事件驱动性能指标进行量化,并与相关文献进行对比,验证了所提出方案可以在保证系统性能的前提下有效减少通信传输,延长无线传感网络的使用寿命.

关键词：事件驱动控制均方有界时滞

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Manufacture the conducting polymer with light

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Science China Chemistry 2025年第1期68卷 8-9页

作者： Yang li Tianyu li Yan ji Baoguang liu College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology) Nanjing University of Posts & Telecommunications

Poly(3,4-ethylenedioxythiophene) (PEDOT), heralded as the “king” of conducting polymers, is esteemed in bioelectronics for its mixed electronic and ionic conductivity, mechanical properties compatible with biological tissues, tunable healing ability and stability in diverse environments [1]. Based on additive manufacturing of three-dimensional structures,PEDOT realizes the implementation in the efficient production of flexible bioelectronics, the construction of intricate electrode-neural implantations, and the development of smart brain-computer-interfaces [2].

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Sex-dependent alterations in extracellular vesicles linking chronic spinal cord injury to brain neuroinflammation and neurodegeneration

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Neural Regeneration Research 2025年第2期20卷 483-484页

作者： yun li Junfang Wu Department of Anesthesiology&Shock Trauma and Anesthesiology Research(STAR)CenterUniversity of Maryland School of MedicineBaltimoreMDUSA

Traumatic spinal cord injury(SCI)is a devastating exogenous injury with long-lasting consequences and a leading cause of death and disability *** in assistive technology,rehabilitative interventions,and the ability to identify and intervene in secondary conditions have significantly increased the long-term survival rate of SCI patients,with some people even living well into their seventh or eighth *** survival changes have led neurotrauma researchers to examine how SCI interacts with brain *** health and epidemiological data showed that patients with long-term SCI can have a lower life expectancy and quality of life,along with a higher risk of comorbidities and complications.

关键词： alterations inflammation injury

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Implicit Trust Based Context-Aware Matrix Factorization for Collaborative Filtering

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Journal of Donghua University(English Edition) 2016年第6期33卷 914-919页

作者： li ji-yun SUN Cai-qi School of Computer Science and Technology Donghua University Shanghai 201620 China

Matrix factorization （MF） has been proved to be a very effective technique for collaborative filtering （ CF）, and hence has been widely adopted in today＇s recommender systems, Yet due to its lack of consideration of the users＇ and items＇ local structures, the recommendation accuracy is not fully satisfied. By taking the trusts among users＇ and between items＇ effect on rating information into consideration, trust-aware recommendation systems （TARS） made a relatively good performance. In this paper, a method of incorporating trust into MF was proposed by building user-based and item-based implicit trust network under different contexts and implementing two implicit trust-based context-aware MF （]TMF） models. Experimental results proved the effectiveness of the methods.

关键词： matrix factorization(MF) collaborative filtering(CF) implicit trust network contex aware

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新农村建设中劳动力转移与城镇化协调发展研究——以云南为例

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商业研究 2008年第5期 177-180页

作者：李继云红河学院商学院云南蒙自661100

转移农业剩余劳动力,消除二元经济结构,是实现新农村建设目标的重要途径。以云南劳动力转移为例,分析了农村劳动力转移与城镇化发展的关系,城市化水平滞后、现行的户籍制度、劳动力市场发育滞缓和农村劳动力素质低等是两者不能协调发展... 详细信息

转移农业剩余劳动力,消除二元经济结构,是实现新农村建设目标的重要途径。以云南劳动力转移为例,分析了农村劳动力转移与城镇化发展的关系,城市化水平滞后、现行的户籍制度、劳动力市场发育滞缓和农村劳动力素质低等是两者不能协调发展的主要原因。改革户籍与土地制度,赋予农民工平等的劳动力保障权利、坚持多元城镇化转移农村富余劳动力原则、大力发展二、三产业,为农村剩余劳动力转移提供就业机会等是劳动力转移与城镇化协调发展之良策。

关键词：新农村建设剩余劳动力转移城镇化协调发展

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基于改进虚拟机整合算法的虚拟资源管理工具

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电子科技大学学报 2016年第3期45卷 355-360,480页

作者：赵长名刘健李云继电子科技大学通信与信息工程学院成都611731 北京科技大学通信与信息工程学院北京海淀区100083 贵州理工学院电气工程学院贵阳550003

提出了一种基于分段迭代相关性整合（SICC）的虚拟机整合与放置策略，并将它作为云资源管理工具的核心结构。SICC算法整合了时间序列分析、线性相关性分析和传统的FFD算法，并基于虚拟机的最小资源利用率建立了一套新的虚拟机动态资源... 详细信息

提出了一种基于分段迭代相关性整合（SICC）的虚拟机整合与放置策略，并将它作为云资源管理工具的核心结构。SICC算法整合了时间序列分析、线性相关性分析和传统的FFD算法，并基于虚拟机的最小资源利用率建立了一套新的虚拟机动态资源整合理论。数值仿真结果表明，在虚拟机整合过程中，新的基于SICC的架构在使用不同的初始动态条件时，以虚拟机为粒度的物理资源利用率性能提升3％～20％；在以服务器为粒度的物理资源利用率性能提升超过5％。

关键词：动态资源整合 FFD算法线性相关性分析虚拟机

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Magneto‑Dielectric Synergy and Multiscale Hierarchical Structure Design Enable Flexible Multipurpose Microwave Absorption and Infrared Stealth Compatibility

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Nano-Micro Letters 2025年第2期17卷 401-416页

作者： Chen li Leilei liang Baoshan Zhang Yi Yang Guangbin ji School of Electronic Science and Engineering Nanjing UniversityNanjing 210093People’s Republic of China College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016People’s Republic of China

Developing advanced stealth devices to cope with radar-infrared(IR)fusion detection and diverse application scenarios is increasingly demanded,which faces significant challenges due to conflicting microwave and IR cloaking mechanisms and functional integration ***,we propose a multiscale hierarchical structure design,integrating wrinkled MXene IR shielding layer and flexible Fe_(3)O_(4)@C/PDMS microwave absorption *** top wrinkled MXene layer induces the intensive diffuse reflection effect,shielding IR radiation signals while allowing microwave to pass ***,the permeable microwaves are assimilated into the bottom Fe_(3)O_(4)@C/PDMS layer via strong magneto-electric *** theoretical and experimental optimization,the assembled stealth devices realize a near-perfect stealth capability in both X-band(8–12 GHz)and long-wave infrared(8–14μm)wavelength ***,it delivers a radar cross-section reduction of−20 dB m^(2),a large apparent temperature modulation range(ΔT=70℃),and a low average IR emissivity of ***,the optimal device demonstrates exceptional curved surface conformability,self-cleaning capability(contact angle≈129°),and abrasion resistance(recovery time≈5 s).This design strategy promotes the development of multispectral stealth technology and reinforces its applicability and durability in complex and hostile environments.

关键词： Microwave absorption Radar-infrared compatible stealth Wrinkled MXene Magneto-dielectric synergy Multifunction

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IoT Empowered Early Warning of Transmission line Galloping Based on Integrated Optical Fiber Sensing and Weather Forecast Time Series Data

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Computers, Materials & Continua 2025年第1期82卷 1171-1192页

作者： Zhe li yun liang jinyu Wang Yang Gao State Grid Henan Electric Power Company Electric Power Scientific Research Institute State Grid Henan Electric Power CompanyZhengzhou450052China

Iced transmission line galloping poses a significant threat to the safety and reliability of power systems,leading directly to line tripping,disconnections,and power *** early warning methods of iced transmission line galloping suffer from issues such as reliance on a single data source,neglect of irregular time series,and lack of attention-based closed-loop feedback,resulting in high rates of missed and false *** address these challenges,we propose an Internet of Things(IoT)empowered early warning method of transmission line galloping that integrates time series data from optical fiber sensing and weather ***,the method applies a primary adaptive weighted fusion to the IoT empowered optical fiber real-time sensing data and weather forecast data,followed by a secondary fusion based on a Back Propagation(BP)neural network,and uses the K-medoids algorithm for clustering the fused ***,an adaptive irregular time series perception adjustment module is introduced into the traditional Gated Recurrent Unit(GRU)network,and closed-loop feedback based on attentionmechanism is employed to update network parameters through gradient feedback of the loss function,enabling closed-loop training and time series data prediction of the GRU network ***,considering various types of prediction data and the duration of icing,an iced transmission line galloping risk coefficient is established,and warnings are categorized based on this ***,using an IoT-driven realistic dataset of iced transmission line galloping,the effectiveness of the proposed method is validated through multi-dimensional simulation scenarios.

关键词： Optical fiber sensing multi-source data fusion early warning of galloping time series data IoT adaptive weighted learning irregular time series perception closed-loop attention mechanism

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新农村建设中劳动力转移与城镇化协调发展的定量分析

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乡镇经济 2007年第10期23卷 22-24页

作者：李继云红河学院商学院云南蒙自661100

转移农业剩余劳动力,消除二元经济结构,是实现新农村建设目标的重要途径。文章首先阐述了农村劳动力转移与城镇化发展的理论关系,接着以云南为例,在数量上验证了二者的相关关系,在此基础上构建一个城镇化发展对农村劳动力转移的影响模型... 详细信息

转移农业剩余劳动力,消除二元经济结构,是实现新农村建设目标的重要途径。文章首先阐述了农村劳动力转移与城镇化发展的理论关系,接着以云南为例,在数量上验证了二者的相关关系,在此基础上构建一个城镇化发展对农村劳动力转移的影响模型,为云南农村劳动力转移与城镇化的协调发展提供经验支持,最后文章提出了相应的对策建议。

关键词：定量分析剩余劳动力转移城镇化协调发展

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