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运动心肺试验低通气效率在慢性阻塞性肺疾病中的研究进展

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中华结核和呼吸杂志 2024年第2期47卷 167-171页

作者：邓志珊吴繁宛琪周玉民冉丕鑫呼吸疾病全国重点实验室、国家呼吸系统疾病临床医学研究中心、国家呼吸医学中心、广州呼吸健康研究院、广州医科大学附属第一医院、广州医科大学广州510120 广州国家实验室、呼吸疾病全国重点实验室、国家呼吸系统疾病临床医学研究中心、国家呼吸医学中心、广州呼吸健康研究院、广州医科大学附属第一医院、广州医科大学广州510005

运动心肺试验中低通气效率的相关病理生理学机制及临床应用是目前国内外慢性阻塞性肺疾病的研究热点之一,越来越多证据证明低通气效率与慢阻肺劳力性呼吸困难、运动耐量下降和死亡高风险有关。通气效率有望成为缓解慢阻肺患者呼吸困难... 详细信息

运动心肺试验中低通气效率的相关病理生理学机制及临床应用是目前国内外慢性阻塞性肺疾病的研究热点之一,越来越多证据证明低通气效率与慢阻肺劳力性呼吸困难、运动耐量下降和死亡高风险有关。通气效率有望成为缓解慢阻肺患者呼吸困难症状的新的治疗靶点。本文就低通气效率在慢阻肺中的研究进展进行综述,以增加对低通气效率的慢阻肺患者的认识,更好地为这类患者提供综合全面的评估和管理。

关键词：呼吸困难症状通气效率慢性阻塞性肺疾病运动耐量慢阻肺患者劳力性呼吸困难运动心肺试验治疗靶点

子宫内膜异位囊肿患者输卵管系膜状态与卵巢囊肿剥除术后血清CA125、性激素水平的关系

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中国性科学 2024年第2期33卷 122-125页

作者：周玉敏查正霞方金枝南京鼓楼医院集团安庆石化医院妇产科安徽安庆246000

目的探究子宫内膜异位囊肿患者输卵管系膜状态与卵巢囊肿剥除术后血清糖类抗原125(CA125)、性激素水平的关系。方法纳入2020年1月至2022年12月就诊于南京鼓楼医院集团安庆石化医院的83例子宫内膜异位囊肿患者作为研究对象,均给予卵巢囊... 详细信息

目的探究子宫内膜异位囊肿患者输卵管系膜状态与卵巢囊肿剥除术后血清糖类抗原125(CA125)、性激素水平的关系。方法纳入2020年1月至2022年12月就诊于南京鼓楼医院集团安庆石化医院的83例子宫内膜异位囊肿患者作为研究对象,均给予卵巢囊肿剥除术治疗。根据术前输卵管系膜与子宫内膜异位囊肿或附件粘连情况将其分为粘连组(n=32)和无粘连组(n=51),根据术中输卵管系膜有无活动性出血及血肿将其分为血管损伤组(n=37)和无血管损伤组(n=46)。分析患者输卵管系膜状态对术后血清CA125、性激素水平的影响。结果粘连组术后黄体生成素(LH)、雌二醇(E_(2))、卵泡刺激素(FSH)、抗米勒管激素(AMH)水平低于无粘连组(P<0.05);粘连组术后卵巢窦卵泡计数(AFC)少于无粘连组,卵巢体积小于无粘连组(P<0.05)。血管损伤组术后LH、E2、FSH及AMH水平低于无血管损伤组(P<0.05);血管损伤组术后卵巢AFC少于无血管损伤组,卵巢体积小于无血管损伤组(P<0.05)。结论子宫内膜异位囊肿患者输卵管系膜粘连及术中血管损伤可导致患者性激素水平降低,并影响其卵巢功能,但对血清CA125水平的影响不大。

关键词：子宫内膜异位囊肿输卵管系膜状态卵巢囊肿剥除术糖类抗原125 性激素

“金课”背景下“流式大数据实时分析”课程的建设与创新

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计算机应用文摘 2024年第5期40卷 1-4页

作者：杜芳滕昱雷璐朱健周煜敏西南财经大学计算机与人工智能学院成都611130 戴尔科技集团上海200433

数据处理的时效性和开源技术生态是大数据研究领域的核心问题与核心技术。参照“金课”建设“两性一度”的标准,文章以建设“流式大数据实时分析”课程为例,从课程理论系统建设、实训项目设计以及教学模式构建3个维度,探索了在产教协同... 详细信息

数据处理的时效性和开源技术生态是大数据研究领域的核心问题与核心技术。参照“金课”建设“两性一度”的标准,文章以建设“流式大数据实时分析”课程为例,从课程理论系统建设、实训项目设计以及教学模式构建3个维度,探索了在产教协同下以行业需求为背景,以开源生态中行业前沿技术为主导的创新性课程建设模式。

关键词：流式大数据实时分析开源生态金课

Machine-Learning Based Packet Switching Method for Providing Stable High-Quality Video Streaming in Multi-Stream Transmission

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Computers, Materials & Continua 2024年第3期78卷 4153-4176页

作者： yumin Jo Jongho Paik Major in Software Fusion Department of ComputerSeoulWomen’s UniversitySeoul01797South Korea Department of Software Convergence Seoul Women’s UniversitySeoul01797South Korea

Broadcasting gateway equipment generally uses a method of simply switching to a spare input stream when a failure occurs in a main input stream.However,when the transmission environment is unstable,problems such as reduction in the lifespan of equipment due to frequent switching and interruption,delay,and stoppage of services may occur.Therefore,applying a machine learning(ML)method,which is possible to automatically judge and classify network-related service anomaly,and switch multi-input signals without dropping or changing signals by predicting or quickly determining the time of error occurrence for smooth stream switching when there are problems such as transmission errors,is required.In this paper,we propose an intelligent packet switching method based on the ML method of classification,which is one of the supervised learning methods,that presents the risk level of abnormal multi-stream occurring in broadcasting gateway equipment based on data.Furthermore,we subdivide the risk levels obtained from classification techniques into probabilities and then derive vectorized representative values for each attribute value of the collected input data and continuously update them.The obtained reference vector value is used for switching judgment through the cosine similarity value between input data obtained when a dangerous situation occurs.In the broadcasting gateway equipment to which the proposed method is applied,it is possible to perform more stable and smarter switching than before by solving problems of reliability and broadcasting accidents of the equipment and can maintain stable video streaming as well.

关键词： Broadcasting and communication convergence multi-stream packet switching advanced television systems committee standard 3.0(ATSC 3.0) data pre-processing machine learning cosine similarity

Characterization of PM_(2.5)/PM_(2.5-10) and source tracking in the juncture belt between urban and rural areas of Beijing

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Chinese Science Bulletin 2009年第14期54卷 2506-2515页

作者： WANG HaiLin zhou yumin ZHUANG YaHui WANG XiaoKe HAO ZhengPing Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Coarse (PM2.5-10) and fine (PM2.5) atmospheric particulate samples were collected in summer and winter during 2005―2007 in the juncture belt between urban and rural areas of Beijing. Elements, ions, organic/elemental carbon (OC/EC) and polynuclear aromatic hydrocarbons (PAHs) were determined to obtain some latest information about the particulate pollution in the juncture belt of Beijing. Particulate matter levels at this site were high as compared with the levels at other sampling sites in Beijing. Pollution elements, secondary ions and PAHs were enriched in fine particles rather than in coarse particles. An obvious seasonal variation of the chemical composition of PM was observed. Source apportionment results showed that secondary components were the largest mass contributor of PM2.5, accounting for 28%; whereas soil-related sources were the largest contributor of PM2.5-10, explaining about 49% of the total mass. The abnormal levels of soil heavy metals at the electronic waste disassembly site in the upwind villages suggested the potential impact of such activities to the environment.

关键词：农村地区北京城市 PM2.5 大气颗粒物土壤重金属追踪表征

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保留比值受损肺功能人群研究进展

中华结核和呼吸杂志 2022年第10期45卷 1046-1050页

作者：赵宁宁周玉民国家呼吸医学中心呼吸疾病国家重点实验室呼吸疾病国家临床医学研究中心广州呼吸健康研究院广州医科大学附属第一医院广州510120

保留比值受损肺功能(PRISm)是指一秒率(FEV1/FVC)正常但出现第一秒用力呼气容积(FEV1)降低的肺功能测定模式。PRISm在人群中普遍存在, 但在目前的研究中被低估。欧美队列研究发现PRISm人群的慢阻肺发生风险、心血管相关死亡风险和全因... 详细信息

保留比值受损肺功能(PRISm)是指一秒率(FEV1/FVC)正常但出现第一秒用力呼气容积(FEV1)降低的肺功能测定模式。PRISm在人群中普遍存在, 但在目前的研究中被低估。欧美队列研究发现PRISm人群的慢阻肺发生风险、心血管相关死亡风险和全因死亡风险较肺功能正常人群显著增加, 其可能是慢阻肺前期人群之一, 因此早期发现和防治PRISm至关重要。本文就目前PRISm研究进展进行综述, 以增加对PRISm的认识, 更好地为PRISm人群提供综合全面的评估和管理。

关键词：肺功能测定死亡风险 FEV1/FVC 慢阻肺全因死亡队列研究一秒率肺功能正常

Cystatin C as a predictor of in-hospital mortality after acute exacerbations of chronic obstructive pulmonary diseases

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Cystatin C as a predictor of in-hospital mortality after acu...

Synergistic enhancement of Ce-ZnO/g-C_(3)N_(4)photocatalytic performance using N,O-bis-vacancy induction and S-scheme heterojunctions

中华医学会呼吸病学年会——2013（第十四次全国呼吸病...

作者： Guoping Hu yumin zhou Yiming Zou Yan Yu Weiqiang Liang Pixin Ran Guangzhou Institute of Respiratory Diseases State Key Lab of Respiratory DiseasesThe First Affiliated HospitalGuangzhou Medical University Department of Respiratory Medicine The Third Affiliated Hospital of Guangzhou Medical University

Objective To examin the prognostic role of Cystatin C after acute exacerbations of chronic obstructive pulmonary diseases(AECOPD). Methods Admission serum Cystatin C level from 139 AECOPD patients were measured.Clinical characteristics,arterial blood gas analysis,C-reactive protein(CRP),and D-dimer were also measured. In-hospital mortality were assessed as the main

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Journal of Rare Earths 2024年第5期42卷 817-826,I0001页

作者： Guyu Zhang Yuan Zhang Xinlei Zhao Yujiang Jiao yumin Yan Jianhui Jiang Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps College of Chemistry a Chemical EngineeringTarimUniversityAlar843300China

The photocatalytic decontamination of organic pollutants is an environmentally friendly and efficient water treatment method.The introduction of vacancies,heterojunctions,and doping can enhance the performance of photocatalysts for such applications.In this study,N,O double-vacancy Ce-ZnO/g-C_(3)N_(4)S-scheme heterojunction photocatalysts were prepared,It is found that the electron separation and transfer efficiencies are considerably improved by the presence of nitrogen vacancies in graphitic ca rbon nitride(g-C_(3)N_(4))and oxygen vacancies in ZnO,in addition to the S-scheme heterojunction created between the two materials.In the degradation of methylene blue and ciprofloxacin,the degradation rates exhibited by Ce-ZnO/g-C_(3)N_(4)are significantly higher than those of the g=C_(3)N_(4)/ZnO system.This remarkable photocatalytic performance of Ce-ZnO/g-C_(3)N_(4)may result from three key factors;(ⅰ)Ce doping,which produces impurity energy levels;(ⅱ)the generation of electron capture centres by the N and O vacancies;and(ⅲ)the synergistic effect of the S-type heterojunction formed at the interface between the two materials,This study therefore provides new approaches for the use of doping,vacancies,and heterojunctions to induce the efficient degradation of organic pollutants.

关键词： Photocatalysis Vacancy S-scheme Ce-ZnO/g-C_(3)N_(4) Degradation Rare earths

The safety aspect of sodium ion batteries for practical applications

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Journal of Energy Chemistry 2024年第8期95卷 407-427页

作者： Yingshuai Wang Runqing Ou Jingjing Yang Yuhang Xin Preetam Singh Feng Wu yumin Qian Hongcai Gao School of Materials Science & Engineering Beijing Institute of Technology Department of Ceramic Engineering Indian Institute of Technology(Banaras Hindu University) Varanasi School of Physics Beijing Institute of Technology Yangtze Delta Region Academy of Beijing Institute of Technology Beijing Institute of Technology Chongqing Innovation Center

Sodium-ion batteries(SIBs) with advantages of abundant resource and low cost have emerged as promising candidates for the next-generation energy storage systems. However, safety issues existing in electrolytes, anodes, and cathodes bring about frequent accidents regarding battery fires and explosions and impede the development of high-performance SIBs. Therefore, safety analysis and high-safety battery design have become prerequisites for the development of advanced energy storage systems. The reported reviews that only focus on a specific issue are difficult to provide overall guidance for building high-safety SIBs. To overcome the limitation, this review summarizes the recent research progress from the perspective of key components of SIBs for the first time and evaluates the characteristics of various improvement strategies. By orderly analyzing the root causes of safety problems associated with different components in SIBs(including electrolytes, anodes, and cathodes), corresponding improvement strategies for each component were discussed systematically. In addition, some noteworthy points and perspectives including the chain reaction between security issues and the selection of improvement strategies tailored to different needs have also been proposed. In brief, this review is designed to deepen our understanding of the SIBs safety issues and provide guidance and assistance for designing high-safety SIBs.

关键词： Anode bulk modification Cathode bulk design Organic electrolytes modification Safety Sodium ion batteries Solid-state electrolyte