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关于手术知情同意实施现状的分析研究

中国医学伦理学 2024年第2期37卷 163-167页

作者：马桂清严金海南方医科大学卫生管理学院广东广州510515 南方医科大学通识教育部广东广州510515

目的通过调查手术知情同意书内容和签字情况、授权委托书签署情况,了解目前医疗机构关于手术知情同意的落实情况。方法采用分层随机抽样法抽取了某三甲医院2022年度上半年的276份手术病历,并就手术同意书和授权委托书签署情况进行分析... 详细信息

目的通过调查手术知情同意书内容和签字情况、授权委托书签署情况,了解目前医疗机构关于手术知情同意的落实情况。方法采用分层随机抽样法抽取了某三甲医院2022年度上半年的276份手术病历,并就手术同意书和授权委托书签署情况进行分析。结果医患双方的签字比较规范;医方关于术前主要诊断、手术名称、术中或术后可能出现的并发症、手术风险告知比较充分,对患者自身存在的高危因素、替代治疗方案及其利弊的告知存在不足;非患者本人签字的手术同意书,授权委托书签署不规范。结论医疗机构手术知情同意落实较好,但仍存在一定缺陷。医疗机构可通过加强法律法规培训,明确授权范畴、强化术者告知、签字和落实监督检查等方面来保障知情同意的落实,切实保障医患双方权利和义务的统一,有效规避医疗风险,促进和谐医患关系的构建。

关键词：手术同意书知情同意授权委托

Systematic Evaluation of Deep Neural Network based Dynamic Modeling Method for AC Power Electronic System

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CES Transactions on Electrical machines and Systems 2023年第2期7卷 137-143页

作者： Yunlu Li guiqing ma Junyou Yang Yan Xu the School o Electrical Engineering Shenyang University of Technology110870China IEEE

Since the high penetration of renewable energy complicates the dynamic characteristics of the AC power electronic system(ACPES),it is essential to establish an accurate dynamic model to obtain its dynamic behavior for ensure the safe and stable operation of the ***,due to the no or limited internal control details,the state-space modeling method cannot be *** leads to the ACPES system becoming a black-box dynamic *** dynamic modeling method based on deep neural network can simulate the dynamic behavior using port data without obtaining internal control ***,deep neural network modeling methods are rarely systematically *** practice,the construction of neural network faces the selection of massive data and various network structure ***,different sample distributions make the trained network performance quite *** network structure hyperparameters also mean different convergence *** to the lack of systematic evaluation and targeted suggestions,neural network modeling with high precision and high training speed cannot be realized quickly and conveniently in practical engineering *** fill this gap,this paper systematically evaluates the deep neural network from sample distribution and structural hyperparameter *** influence on modeling accuracy is analyzed in detail,then some modeling suggestions are *** results under multiple operating points verify the effectiveness of the proposed method.

关键词： AC power electronic system Dynamic behavior Neural network Systematic evaluation

Cyber-physical Modeling Technique based Dynamic Aggregation of Wind Farm Considering LVRT Characteristic

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CES Transactions on Electrical machines and Systems 2023年第2期7卷 229-236页

作者： guiqing ma Yunlu Li Junyou Yang Bing Wu the School of Electrical Engineering Shenyang University of TechnologyShenyang110870China IEEE

With the increasing penetration of wind power,large-scale integrated wind turbine brings stability and security risks to the power *** the aggregated modeling of large wind farms,it is crucial to consider low voltage ride-through(LVRT)***,in aggregation methods,the approximate neglect behavior is essential,which leads to inevitable errors in the aggregation ***,the lack of parameters in practice brings new challenges to the modeling of a wind *** address these issues,a novel cyber-physical modeling method is *** method not only overcomes the aggregation problem under the black-box wind farm but also accurately realizes the aggregation error fitting according to the operation *** simulation results reveal that the proposed method can accurately simulate the dynamic behaviors of the wind farm in various scenarios,whether in LVRT mode or normal mode.

关键词： Wind farm Aggregated model Low voltage ride through Operation data

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钻井密闭取心用合成基密闭液的评价与应用

精细石油化工 2006年第5期23卷 11-13页

作者：马桂清慈国良李军宋兆辉宋少波胜利石油管理局钻井工艺研究院山东东营257017

介绍了密闭液室内评价的一种新方法,以及合成基密闭液在胜利油田、西部油田、哈萨克斯坦扎纳诺尔油田的现场应用情况。通过合成基密闭液现场应用结果与新评价方法的结果相一致,验证了新评价方法的正确性和实用性。现场应用实践表明,合... 详细信息

介绍了密闭液室内评价的一种新方法,以及合成基密闭液在胜利油田、西部油田、哈萨克斯坦扎纳诺尔油田的现场应用情况。通过合成基密闭液现场应用结果与新评价方法的结果相一致,验证了新评价方法的正确性和实用性。现场应用实践表明,合成基密闭液的性能稳定、耐高温(170℃)、密闭效果好,单井岩心密闭率可达到100％,贮存期长达12个月,可用于浅井和深井密闭取心。

关键词：合成基密闭液密闭取心岩心密闭率滤液侵入量

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宁镇地区侵入岩的形成构造环境

江苏地质 1990年第1期14卷 17-20页

作者：马桂琴江苏省地矿局地质矿产研究所

本文通过对宁镇地区侵入岩岩体地质、岩石化学、微量元素及侵位方式特征的研究,并与国内外典型构造环境的岩浆岩进行对比后,认为宁镇地区侵入岩形成在以张性作用为主,挤压作用为辅的构造环境中,是裂谷作用初期—断裂拗陷阶段的产物。

关键词：宁镇地区侵入岩构造环境

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变频技术在风机、水泵上的应用

天津冶金 2009年第4期 47-49页

作者：曹显锋马桂庆天津钢铁集团有限公司天津300301

结合天津钢铁有限公司目前风机、水泵设备的特点及运行情况,分析了变频技术应用在风机、水泵上的先进性。介绍了低压系统除尘风机和动力厂水泵进行变频改造的方案。改造后提高了系统运行的安全性、可靠性,每年约可节电400万kWh,节能效... 详细信息

结合天津钢铁有限公司目前风机、水泵设备的特点及运行情况,分析了变频技术应用在风机、水泵上的先进性。介绍了低压系统除尘风机和动力厂水泵进行变频改造的方案。改造后提高了系统运行的安全性、可靠性,每年约可节电400万kWh,节能效果显著。

关键词：变频技术除尘风机水泵启动电流节能改造

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合成基密闭液的研制与应用

石油钻探技术 2006年第4期34卷 50-51页

作者：马桂清薛玉志何兴贵慈国良刘从军胜利石油管理局钻井工艺研究院山东东营257017

介绍了合成基密闭液的室内研制与现场应用情况。合成基密闭液是一种以有机酯为连续相,以增塑树脂为主要成膜材料的新型密闭液。室内试验和国内外钻井密闭取心现场应用结果表明,合成基密闭液具有性能稳定、耐高温(170℃)、密闭效果好(单... 详细信息

介绍了合成基密闭液的室内研制与现场应用情况。合成基密闭液是一种以有机酯为连续相,以增塑树脂为主要成膜材料的新型密闭液。室内试验和国内外钻井密闭取心现场应用结果表明,合成基密闭液具有性能稳定、耐高温(170℃)、密闭效果好(单井岩心密闭率可达到100%)、贮存期长(12个月)等优点,适用于浅井和深井密闭取心。

关键词：合成基密闭液密闭取心岩心密闭率

Reactive changes in astrocytes, and delayed neuronal death, in the rat hippocampal CA1 region following cerebral ischemia/reperfusion

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Neural Regeneration Research 2009年第1期4卷 36-41页

作者： guiqing Zhang Xiang Luo Zhiyuan Yu Chao ma Shabei Xu Wei Wang Department of Neurology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 Hubei Province China Department of Rehabilitation and Psychology First Affiliated Hospital Medical College Xinjiang Shihezi University Shihezi 832008 Xinjiang Uygur Autonomous Region China Normal College Xinjiang Shihezi University Shihezi 832000 Xinjiang Uygur Autonomous Region China

BACKGROUND： Blood supply to the hippocampus is not provided by the middle cerebral artery. However, previous studies have shown that delayed neuronal death in the hippocampus may occur following focal cerebral ischemia induced by middle cerebral artery occlusion. OBJECTIVE： To observe the relationship between reactive changes in hippocampal astrocytes and delayed neuronal death in the hippocampal CA1 region following middle cerebral artery occlusion. DESIGN, TIME AND SETTING： The immunohistochemical, randomized, controlled animal study was performed at the Laboratory of Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, from July to November 2007. maTERIALS： Rabbit anti-glial fibrillary acidic protein （GFAP）（Neomarkers, USA）, goat anti-rabbit IgG （Sigma, USA） and ApoAlert apoptosis detection kit （Biosciences Clontech, USA） were used in this study. METHODS： A total of 42 healthy adult male Wistar rats, aged 3–5 months, were randomly divided into a sham operation group （n = 6） and a cerebral ischemia/reperfusion group （n = 36）. In the cerebral ischemia/reperfusion group, cerebral ischemia/reperfusion models were created by middle cerebral artery occlusion. In the sham operation group, the thread was only inserted into the initial region of the internal carotid artery, and middle cerebral artery occlusion was not induced. Rats in the cerebral ischemia/reperfusion group were assigned to a delayed neuronal death （＋） subgroup and a delayed neuronal death （–） subgroup, according to the occurrence of delayed neuronal death in the ischemic side of the hippocampal CA1 region following cerebral ischemia. maIN OUTCOME MEASURES： Delayed neuronal death in the hippocampal CA1 region was measured by Nissl staining. GFAP expression and delayed neuronal death changes were measured in the rat hippocampal CA1 region at the ischemic hemisphere by double staining for GFAP and TUNEL. RESULTS： After 3 days of ischemia

关键词： cerebral ischemia hippocampus delayed neuronal death astrocytes glial fibrillaryacidic protein

Assimilation of Chinese Fengyun-3B Microwave Temperature Sounder radiances into the Global GRAPES system with an improved cloud detection threshold

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Frontiers of Earth Science 2016年第1期10卷 145-158页

作者： Juan LI guiqing LIU Numerical Weather Prediction Center China Meteorological Administration Beijing 100081 China National Meteorological Center China Meteorological Administration Beijing 100081 China

Fengyun-3B （FY-3B） is the second polar- orbiting satellite in the new Fengyun-three series. This paper describes the assimilation of the FY-3B Microwave Temperature Sounder （MWTS） radiances in the Chinese Numerical Weather prediction system - the Global and Regional Assimilation and PrEdiction System （GRAPES）. A quality control procedure for the assimilation of the FY- 3B MWTS radiance was proposed. Extensive monitoring before assimilation shows that the observations of channel 4 are notably contaminated. Channels 2 and 3 are used in this research. A cloud detection algorithm with an improved cloud-detection threshold is determined and incorporated into the impact experiments. The clear field- of-view （FOV） percentage increased from 42% to 57% with the new threshold. In addition, the newly added FOVs are located in the clear region, as demonstrated by the cloud liquid water path data from NOAA-18. The impact of the MWTS radiances on the prediction of GRAPES was researched. The observation biases ofFY-3B MWTS O-B （differences between satellite observations and model simulations） significantly decreased after an empirical bias correction procedure. After assimilation, the residual biases are small. The assimilation of the FY-3B MWTS radiances shows a positive impact in the Northern Hemisphere and a neutral impact in the Southern Hemisphere.

关键词： Fengyun-3B (FY-3B) MWTS quality control GRAPES