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A high dynamic range pixel using lateral overflow integration capacitor and adaptive feedback structure in CMOS image sensors

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Optoelectronics Letters 2023年第12期19卷 721-726页

作者： yang yuejin XU Jiangtao MA Biao CHEN Quanmin NIE Kaiming School of Microelectronics Tianjin UniversityTianjin300072China Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology Tianjin UniversityTianjin300072China

This letter proposes a novel high dynamic range(HDR)pixel using lateral overflow integration capacitor(LOFIC)and adaptive feedback *** detailed analysis of the voltage feedback mechanism,the conversion gain(CG),full well capacity(FWC)and dynamic range(DR)performances of the feedback LOFIC pixel are analytically *** verification results reveal that the equivalent FWC of the feedback LOFIC pixel is 1.89 times of conventional LOFIC pixel,and the DR extension is 5.5 *** on 110 nm CMOS process,a 5.0µm pixel layout is presented,using 13.3 fF capacitance to achieve 83 ke-FWC and 102.8 dB DR,which are 44 ke-and 97.3 dB of conventional LOFIC pixel under the same design *** also demonstrates that the feedback LOFIC pixel can reduce the dependence of extended DR on capacitor area,and can be used as a reference for HDR pixels design.

关键词： HDR dynamic integration

老年急性ST段抬高型心肌梗死患者PCI术后不良心血管事件影响因素分析及列线图预测模型建立

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中国动脉硬化杂志 2024年第4期32卷 319-324页

作者：林芳李寒雪张琳韩英杨跃进辽宁省金秋医院心血管内科辽宁省沈阳市110013 中国医学科学院阜外医院心血管内科北京市100037

[目的]分析老年急性ST段抬高型心肌梗死(STEMI)患者经皮冠状动脉介入治疗(PCI)术后不良心血管事件影响因素,并建立列线图预测模型。[方法]选取2021年2月—2023年1月在辽宁省金秋医院接受PCI术的老年急性STEMI患者216例,依照术后院内不... 详细信息

[目的]分析老年急性ST段抬高型心肌梗死(STEMI)患者经皮冠状动脉介入治疗(PCI)术后不良心血管事件影响因素,并建立列线图预测模型。[方法]选取2021年2月—2023年1月在辽宁省金秋医院接受PCI术的老年急性STEMI患者216例,依照术后院内不良心血管事件发生情况划分为发生组(n=33)和未发生组(n=183)。收集所有患者一般资料、实验室指标、影像学检查资料、术后用药资料,采用单因素与多因素Logistic回归分析探究不良心血管事件独立危险因素,根据独立危险因素中性粒细胞/淋巴细胞比值(NLR)、血小板/淋巴细胞比值(PLR)、C反应蛋白/白蛋白比值(CAR)、C反应蛋白与高密度脂蛋白胆固醇比值(CHR)构建列线图预测模型,绘制校准曲线对列线图模型进行验证,并绘制受试者工作特征(ROC)曲线,分析列线图模型的预测效能。[结果]发生组NLR、PLR、CAR、CHR水平及Gensini评分、血小板聚集率(PAR)明显较未发生组高,左心室射血分数(LVEF)明显较未发生组低(P<0.05);Logistic回归分析结果显示,Gensini评分、LVEF、PAR、NLR、PLR、CAR、CHR是老年急性STEMI患者PCI术后发生不良心血管事件的独立危险因素(P<0.05);根据独立危险因素构建预测老年急性STEMI患者PCI术后发生不良心血管事件风险的列线图模型,模型校准曲线与理想模型较为接近,ROC曲线显示,列线图预测不良心血管事件发生风险的ROC曲线下面积为0.914。[结论]NLR、PLR、CAR、CHR是影响老年急性STEMI患者PCI术后发生不良心血管事件的独立危险因素,基于以上因素构建的列线图模型能有效预测老年急性STEMI患者PCI术后发生不良心血管事件的风险。

关键词：老年急性ST段抬高型心肌梗死经皮冠状动脉介入治疗不良心血管事件影响因素预测模型

Transradial versus transfemoral percutaneous coronary interventionin elderly patients： a systematic overview and meta-analysis

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Chinese Medical Journal 2014年第6期127卷 1110-1117页

作者： He Peiyuan yang yuejin Hu Fenghuan Department of Cardiology Cardiovascular Institute and Fuwai Hospital National Center for Cardiovascular Diseases China Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100037 China

Background Transradial approach(TRA) percutaneous coronary intervention(PCI) has been wildly applied among unselected patients. However, only very few small studies have compared the outcomes between TRA and transfemoral approach(TFA) in elderly patients. We aimed to evaluate the efficacy and safety between TRA and TFA in elderly patients by a pooled *** Studies that met the inclusion and exclusion criteria were included. Statistical analysis was performed using the Review Manager 5.0.0 developed and maintained by the Cochrane Collaboration and a random-effects model was used to better account for the differences among the sub-studies. The primary endpoint was defined as short-term mortality, and other endpoints included major adverse cardiovascular events, major bleeding events, procedure success, vascular complications and hospital stay. Results Two thousand one hundred and eighty-eight patients from 11 studies were finally included. A non-significant trend toward a lower rate of short-term death was found in favor of TRA(odds ratio(OR): 0.56, 95% confidence interval(CI): 0.27–1.16). The incidence rates of vascular complications(OR 0.25, 95% CI: 0.14–0.46) and major bleeding events(OR: 0.31, 95% CI: 0.18–0.55) were greatly reduced by TRA compared with TFA. No significant difference was detected in the occurrence rate of major adverse cardiovascular events(OR: 0.77, 95% CI: 0.45–1.30), but the rate of procedure success was significantly improved by TRA(OR: 1.86, 95% CI: 1.18–2.94). In addition, the total hospital stay was also significantly reduced by *** TRA showed greater efficacy and safety compared with TFA in elderly patients. It should be recommend as routine practice for elderly patients undergoing PCI in TRA capable hospitals.

关键词： coronary artery disease angioplasty transradial approach meta analysis

中国急性ST段抬高型心肌梗死患者院前应用硝酸甘油或中成药对症状改善及梗死相关动脉血流影响的比较研究

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中国循环杂志 2024年第1期39卷 41-47页

作者：赵广玉王朵儿杨进刚鲁晔陶水英程晓曙叶君明贺春晖吴超许海燕乔树宾赵延延王杨李卫高晓津杨跃进中国急性心肌梗死注册研究组中国医学科学院北京协和医学院国家心血管病中心阜外医院冠心病中心北京100037 中国医学科学院北京协和医学院国家心血管病中心阜外医院医学统计部北京102308 南昌大学第二附属医院心血管内科南昌330006 萍乡市人民医院心血管内科萍乡337055 不详

目的:比较中国急性ST段抬高型心肌梗死(STEMI)患者院前应用硝酸甘油或中成药对症状改善及对梗死相关动脉(IRA)血流的影响。方法:依托中国急性心肌梗死注册研究于2013年1月1日至2014年3月31日期间,纳入全国108家医院7 d内发病且明确报告... 详细信息

目的:比较中国急性ST段抬高型心肌梗死(STEMI)患者院前应用硝酸甘油或中成药对症状改善及对梗死相关动脉(IRA)血流的影响。方法:依托中国急性心肌梗死注册研究于2013年1月1日至2014年3月31日期间,纳入全国108家医院7 d内发病且明确报告院前使用或不使用硝酸甘油或中成药的13064例STEMI患者(已排除共用两类药物患者),其中5280例患者接受了急诊冠状动脉造影。对比使用两类药物对患者症状缓解及IRA的TIMI血流分级水平的影响,其中症状缓解包括完全缓解(症状消失)和部分缓解(不同程度缓解)。结果:13064例患者中,2892例(22.1%)院前应用了硝酸甘油或中成药,其中1149例(8.8%)使用了硝酸甘油,1743例(13.3%)使用了中成药,10172例院前未用药。应用硝酸甘油或中成药的患者,6 h内到达医院的比例(57.4%vs.60.8%vs.50.3%,P<0.0010),与使用院前急救系统的比例(11.8%vs.12.2%vs.9.5%,P=0.0004)均高于未用药的患者。使用硝酸甘油的患者部分缓解比例高于使用中成药的患者(33.8%vs.25.1%,P<0.0010)。多因素Logistic分析显示,使用硝酸甘油较使用中成药完全和部分缓解的可能性较高(OR=1.331,95%CI:1.129~1.569,P=0.0007)。使用硝酸甘油或中成药的患者与未用药患者的院内死亡率相似。在接受急诊冠状动脉造影的患者中,使用中成药或硝酸甘油及未用药患者IRA的TIMI血流达到2~3级的比例分别为21.6%、15.8%和19.3%(P=0.0405)。多因素Logistic回归分析显示,与未用药患者相比,使用中成药患者的TIMI血流达到2~3级水平无明显优势(OR=0.856,95%CI:0.705~1.040,P=0.1171),使用硝酸甘油的患者TIMI血流达到2~3级水平可能性降低(OR=0.666,95%CI:0.495~0.895,P=0.0071)。结论:中国约有22.1%的STEMI患者院前单用硝酸甘油或中成药,含服硝酸甘油对症状改善作用优于中成药,与未用药患者相比,应用这两类药物的患者的TIMI血流未见明显改善。

关键词：急性ST段抬高型心肌梗死硝酸甘油中成药症状改善 TIMI血流

Adiponectin improves the therapeutic efficacy of mesenchymal stem cells in infarcted myocardium by enhancing their engraftment through the AMPK pathway

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中国循环杂志 2016年第Z1期31卷 -页

作者： Xiaqiu Tian yuejin yang State Key Laboratory of Cardiovascular Diseases FuwaiHospital NationalCenter for Cardiovascular Diseases Chinese Academy of MedicalSciences and Peking Union MedicalColege Beijing China

Background Poor viability of transplanted mesenchymal stem cells (MSCs) within the ischemic heart has limited their therapeutic potential for cardiac repair. Adiponectin (APN) is an adipocyte-secreted adipokine with pleiotropic actions. It has recently been proposed to participate in tissue regeneration and promote the survival of several types of stem cells. This study investigated whether APN in conjunction with MSCs could improve the stem cell survival and contribute to myocardial repairs after infarction。[第一段]

关键词：干细胞间充质基质细胞显微镜检查电子扫描透射心肌心脏幸存胰岛素脂联素

Requirements ranking based on crowd-sourcing high-end product USs

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Journal of Systems Engineering and Electronics 2024年第1期35卷 94-104页

作者： MA Yufeng DOU Yajie XU Xiangqian JIA Qingyang TAN yuejin College of Systems Engineering National University of Defense TechnologyChangsha 410003China

Based on the characteristics of high-end products,crowd-sourcing user stories can be seen as an effective means of gathering requirements,involving a large user base and generating a substantial amount of unstructured *** key challenge lies in transforming abstract user needs into specific ones,requiring integration and ***,we propose a topic mining-based approach to categorize,summarize,and rank product requirements from user ***,after determining the number of story categories based on py LDAvis,we initially classify“I want to”phrases within user ***,classic topic models are applied to each category to generate their names,defining each post-classification user story category as a ***,a weighted ranking function is devised to calculate the importance of each ***,we validate the effectiveness and feasibility of the proposed method using 2966 crowd-sourced user stories related to smart home systems.

关键词： high-end product complex system crowd-sourcing user stories topic mining requirements ranking

Operational requirements analysis method based on question answering of WEKG

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Journal of Systems Engineering and Electronics 2024年第2期35卷 386-395页

作者： ZHANG Zhiwei DOU Yajie XU Xiangqian MA Yufeng JIANG Jiang TAN yuejin College of Systems Engineering National University of Defense TechnologyChangsha 410073China

The weapon and equipment operational requirement analysis(WEORA) is a necessary condition to win a future war,among which the acquisition of knowledge about weapons and equipment is a great challenge. The main challenge is that the existing weapons and equipment data fails to carry out structured knowledge representation, and knowledge navigation based on natural language cannot efficiently support the WEORA. To solve above problem, this research proposes a method based on question answering(QA) of weapons and equipment knowledge graph(WEKG) to construct and navigate the knowledge related to weapons and equipment in the WEORA. This method firstly constructs the WEKG, and builds a neutral network-based QA system over the WEKG by means of semantic parsing for knowledge navigation. Finally, the method is evaluated and a chatbot on the QA system is developed for the WEORA. Our proposed method has good performance in the accuracy and efficiency of searching target knowledge, and can well assist the WEORA.

关键词： operational requirement analysis weapons and equipment knowledge graph(WEKG) question answering(QA) neutral network

非ST段抬高型急性冠脉综合征诊断和治疗指南(2024)

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中华心血管病杂志 2024年第6期52卷 615-646页

作者：中华医学会心血管病学分会中华心血管病杂志编辑委员会李毅刘巍袁晋青张波韩雅玲杨跃进陈绍良袁祖贻不详解放军北部战区总医院北京积水潭医院中国医学科学院阜外医院大连医科大学附属第一医院解放军北部战区总医院心血管内科沈阳110016 中国医学科学院阜外医院冠心病中心北京100037 南京医科大学附属南京医院/南京市第一医院心血管内科南京210006 西安交通大学第一附属医院心血管内科西安710061

近年来,在非ST段抬高型急性冠脉综合征(NSTE-ACS)诊断和治疗领域积累了大量的新证据。为进一步优化我国NSTE-ACS的诊治实践,由中华医学会心血管病学分会和中华心血管病杂志编辑委员会组织专家组,以临床问题为导向,在2016版NSTE-ACS指南... 详细信息

近年来,在非ST段抬高型急性冠脉综合征(NSTE-ACS)诊断和治疗领域积累了大量的新证据。为进一步优化我国NSTE-ACS的诊治实践,由中华医学会心血管病学分会和中华心血管病杂志编辑委员会组织专家组,以临床问题为导向,在2016版NSTE-ACS指南基础上,参考最新循证医学证据和国际指南,结合我国国情及临床实践经验,制定了此版指南,以推进我国NSTE-ACS的规范化管理。

关键词：急性冠状动脉综合征诊断治疗二级预防

Atorvastatin induces autophagy of mesenchymal stem cells underhypoxia and serum deprivation conditions by activating the mitogen-activated protein kinase/extracellular signal-regulatedkinase pathway

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Chinese Medical Journal 2014年第6期127卷 1046-1051页

作者： Li Na Zhang Qian Qian Haiyan Jin Chen yang yuejin Gao Runlin State Key Laboratory of Cardiovascular Disease Fuwai Hospital National Center for Cardiovascular Disease Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100037 China

Background The survival ratio of implanted mesenchymal stem cells （MSCs） in the infarcted myocardium is *** is a complex self-eating process and can be utilized for cell survival. We have found that atorvastatin （ATV）can effectively activate autophagy to enhance MSCs survival during hypoxia and serum deprivation （H/SD）. The mitogen-activated protein kinase/extracellular signal-regulated kinase （MEK/ERK） pathway is a non-canonical autophagy *** hypothesized that the MEK/ERK pathway mediated ATV-induced autophagy of MSCs under H/SD.

关键词： mesenchymal stromal cells myocardial infarction autophagy hydroxymethylglutaryl-CoA reductase inhibitors signal transduction