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Science China Earth Sciences 2009年第7期52卷 907-912页

作者： WANG Jie YUAN Ping GUO fengxia QIE XiuShu ouyang YuHua ZHANG YiJun College of Physics and Electronic Engineering Northwest Normal UniversityLanzhou 730070China Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of SciencesLanzhou 730000China Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China Chinese Academy of Meteorological Sciences Beijing 100081China

Spectra of seven cloud lightning discharges are reported for the first time after captured with a Slit-less Spectrograph on Chinese Tibet Plateau. The structural characters are analyzed and compared with the spectra of cloud-to-ground lightning, and the results indicate that the spectra of cloud lightning show two different kinds of structure characteristics. One has the similar structure as those of cloud-to-ground lightning discharge, and the other is absolutely different. Meanwhile, more lines of OII with high excited energy are recorded in the spectra of cloud lightning discharge in comparison with that of cloud-to-ground lighting happening in the same region. Temperatures at different positions are calculated and temperature characteristics of these two sorts are analyzed, based to the wavelength, relative intensities and other transition parameters. We suggest that the physical process in the cloud discharge channels changes with much more rapid velocity and wider range compared to cloud-to-ground lightning. The differences between the two types of cloud discharge also reflect some discrepancies between the discharge characteristics.

关键词： spectra cloud lightning discharge temperature

心肌梗死前心绞痛持续时间对患者状况及预后的影响

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河北医药 2001年第9期23卷 653-654页

作者：欧阳秀革王凤霞宁夏煤炭职工总医院心内科 753000

目的　探讨心肌梗死 (AMI)前心绞痛持续时间对急性AMI患者临床状况及近期预后的影响。方法　选择 197例确诊为急性AMI的患者 ,按梗死前 48h内心绞痛持续时间长短分成三组。Ⅰ组持续时间 15min ,Ⅲ组 48h内无心绞痛发作。通过对三组患者... 详细信息

目的　探讨心肌梗死 (AMI)前心绞痛持续时间对急性AMI患者临床状况及近期预后的影响。方法　选择 197例确诊为急性AMI的患者 ,按梗死前 48h内心绞痛持续时间长短分成三组。Ⅰ组持续时间 15min ,Ⅲ组 48h内无心绞痛发作。通过对三组患者的梗死范围、肌酸激酶(CK)峰值、左室射血分数 (LVEF)及各组间恶性室性心律失常、心源性休克、心衰等心脏事件的发生率和病死率进行比较。结果　Ⅰ组患者状况及近期预后明显优于其他两组。Ⅰ组与Ⅱ、Ⅲ组比较差异有显著性 (P 0 .0 5 )。结论　梗死前短暂的心绞痛对心肌具有缺血预适应保护作用 ,但是反复短暂的心肌缺血对心肌具有缺血叠加效应 ,只有梗死前有短时间 ( <15min)

关键词：心肌预适应心肌缺血叠加效应心绞痛心肌梗塞

Clinical characteristics and effectiveness of antiviral agents in hospitalized children with infectious mononucleosis in China:A multicenter retrospective study

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Pediatric Investigation 2021年第3期5卷 188-194页

作者： Huili Hu Huiling Deng Jing Bi Yi Xu Shuangjie Li Yue Xie Xinrong Sun Dongmeng Wang Xufang Li Wenxian ouyang Bing Hu Yufeng Zhang He Tang Chunxiao Fang Hui Zhang Lingyun Guo Chen Wang Tianyi Wang fengxia Yang Tao Jiang Zhengde Xie Gang Liu Key Laboratory of Major Diseases in Children Ministry of EducationResearch Unit of Critical Infection in ChildrenChinese Academy of Medical ScienceDepartment of Infectious DiseasesBeijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina Department of Infectious Diseases Xi’an Children’s HospitalXi’anShaanxiChina Department of Infectious Diseases Baoding Children’s HospitalBaodingHebeiChina Guangzhou Women and Children’s Medical Center GuangzhouGuangdongChina Hepatology Center Hunan Children’s HospitalChangshaHunanChina Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases Key Laboratory of Major Diseases in ChildrenMinistry of EducationNational Clinical Research Center for Respiratory DiseasesResearch Unit of Critical Infection in ChildrenChinese Academy of Medical Sciences2019RU016Laboratory of Infection and VirologyBeijing Pediatric Research InstituteBeijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina

Importance:The clinical characteristics of infectious mononucleosis(IM)in Chinese children have not been evaluated in multicenter studies,and the effectiveness of antiviral treatment are ***:To investigate the clinical characteristics of Chinese children with IM and current status of antiviral therapy for affected ***:Hospitalized patients with IM were enrolled between 2018 and 2020 in five children’s hospitals in *** clinical characteristics were compared among four age groups:<3 years,3-<6 years,6-<10 years,and≥10 *** clinical characteristics of IM and effectiveness of antiviral therapy were compared among patients receiving acyclovir(ACV),ganciclovir(GCV),and no antiviral therapy(i.e.,non-antiviral group).Results:In total,499 patients were analyzed;most patients were 3-<6 years of *** most common symptoms and signs included fever(100%),lymphadenopathy(98.6%),pharyngitis(86.4%),eyelid edema(76.8%),and snoring(72.9%).There were significant differences in rash,hepatomegaly,and liver dysfunction among the four age *** aged<3 years had a lower incidence of liver dysfunction and a higher incidence of *** the 499 patients,50.1%were treated with GCV,26.3%were treated with ACV,and 23.6%received no antiviral *** with the non-antiviral group,patients in the ACV and GCV groups had longer durations of fever(P<0.001).There were no significant differences in the incidences of complications among the three treatment ***:The incidence of IM in Chinese children peaked at 3-<6 years of *** features of IM varied according to *** receiving antiviral therapy exhibited more serious clinical manifestations than did patients without antiviral *** effectiveness of antiviral therapy for IM requires further analysis.

关键词： Infectious mononucleosis Antiviral Ganciclovir Acyclovir

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466份中药材无机元素测定及结果分析

中国中药杂志 2011年第21期36卷 2994-3000页

作者：李凤霞欧阳荔刘亚琼曾静阎赖赖王京宇北京大学医学部公共卫生学院北京100191 北京大学医药卫生分析中心北京100191

目的:测定中药材中41种无机元素总含量,分析包括5种有害重金属元素超标情况,探索其可能的控制方法。方法:采用微波消解,ICP-MS,ICP-AES测定中药材中41种元素的含量。其中32种元素由ICP-MS测定,Al,Ca,Fe,K,Mg,Mn,P,S,Sr由ICP-AES测定。用... 详细信息

目的:测定中药材中41种无机元素总含量,分析包括5种有害重金属元素超标情况,探索其可能的控制方法。方法:采用微波消解,ICP-MS,ICP-AES测定中药材中41种元素的含量。其中32种元素由ICP-MS测定,Al,Ca,Fe,K,Mg,Mn,P,S,Sr由ICP-AES测定。用SPSS16.0软件对所获数据做统计学分析。结果:对标准物质黄芪的测量显示标准物质各元素测量值在参考范围内,除I元素外,各元素的RSD在10%以内,精密度符合要求。用以上仪器和方法分析得到466份中药材中元素含量信息。结论:我国中药材中所含各元素浓度差异悬殊,因种类不同而异;5种重金属超标率均明显低于以往,但超标率大小排序仍为镉>铜>铅>砷>汞;中药材中重金属元素含量呈现产地差异甘肃、青海、山西、新疆、海南各省未发现重金属超标现象。

关键词：中药材无机元素 ICP—MS ICP—AAS

Research on Stochastic Stability of Model Based Networked Control System

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Research on Stochastic Stability of Model Based Networked Co...

第24届中国控制与决策会议

作者： Zhongda Lu 1 , Wu ouyang 2 , Qunhong Tian 1 , fengxia Xu 1. College of Computer and Control Engineering, Qiqihar University, Qiqihar 161006, China2. Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China

In this paper, We analysis on the Model-Based Networked Control System where the plant is continuous and the states are available （full state feedback）. we consider the problem of having a sensor that is connected to the actuator/controller by a network. Two types of stochastic stability are discussed, namely Almost Sure or Probability-1 Asymptotic Stability and Mean Square or Quadratic Asymptotic Stability. The stochastic stability of NCS is analyzed and proved.

关键词： Networked Control System stochastic stability Mean Square Stability Quadratic Asymptotic Stability

来源： cnki会议评论

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建筑用电精准计量与灵活控制—智能计费开关

河南科技 2015年第16期34卷 41-43页

作者：王凤霞俞广志欧阳昱潘丽珠程石国网安徽省电力科学研究院安徽合肥230601 安徽藤蔓电气有限公司安徽合肥230001 国网安徽省电力公司安徽合肥230001

智能计费开关结合了电价提示功能,让用户及时了解所在地区所用时段电价;给出按月电费核算结果。它采用无线通讯和物联网技术,将传统低压开关智能化、网络化,利用智能手机或智能终端设备,实现建筑用电精准计量、可视、可控、可追溯,为用... 详细信息

智能计费开关结合了电价提示功能,让用户及时了解所在地区所用时段电价;给出按月电费核算结果。它采用无线通讯和物联网技术,将传统低压开关智能化、网络化,利用智能手机或智能终端设备,实现建筑用电精准计量、可视、可控、可追溯,为用户提供自主参与节能减排的便捷控制手段。它是降低建筑能耗最基础的设备单元,是智能家居和数字化城市入口产品。

关键词：智能计费开关可视化能效测量控制

应用失效模式与效应分析控制压力蒸汽灭菌湿包高危因素

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护理学杂志（综合版） 2012年第12期27卷 56-58页

作者：欧阳葵英陈琼芳麦惠雪钟玉婵陈新彬龚凤霞佛山市顺德第一人民医院消毒供应中心广东佛山528300

目的探讨应用失效模式与效应分析(FMEA)控制灭菌湿包高危因素的方法与效果,提高灭菌质量。方法成立由包装、灭菌和发放班护士等组成的项目小组,共同讨论确定压力蒸汽灭菌致湿包的高危因素并计算危机值(RPN),找出湿包的主要高危因素,针... 详细信息

目的探讨应用失效模式与效应分析(FMEA)控制灭菌湿包高危因素的方法与效果,提高灭菌质量。方法成立由包装、灭菌和发放班护士等组成的项目小组,共同讨论确定压力蒸汽灭菌致湿包的高危因素并计算危机值(RPN),找出湿包的主要高危因素,针对高危因素制定一次性包装材料预防湿包的包装与灭菌指引并引入目视管理。结果确定湿包8个主要原因,经实施改善计划6个月后高危因素的RPN值由210～576分下降至30～120分;实施FMEA前后湿包发生率比较,差异有统计学意义(P<0.05)。结论压力蒸汽灭菌致湿包涉及多方面因素,引入FMEA有助于系统分析湿包的原因和指导制定改进措施,有效预防湿包的发生,提高医疗器械消毒灭菌质量。

关键词：压力蒸汽灭菌湿包失效模式与效应分析高危因素危机值

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腹腔镜可调节胃束带折叠术治疗肥胖疗效观察

解放军医学院学报 2018年第4期39卷 303-307页

作者：吴安健刘兢文公凤霞吴安芹欧阳燕田靖波金露佳曹李陈志达刘志刚董光龙解放军总医院普通外科北京100853 贵阳中医学院第二附属医院贵州贵阳550002 贵州省黔东南州天柱县人民医院贵州黔东南556600 吉林省白城市医院普外科吉林白城137000

目的观察腹腔镜可调节胃束带折叠术(laparoscopic adjustable gastric banding,LAGB)治疗肥胖和肥胖伴发的2型糖尿病(type 2 diabetes,T2DM)的疗效与安全性。方法选取2012年4月-2014年4月在解放军总医院接受LAGBP 32例与腹腔镜袖状胃切... 详细信息

目的观察腹腔镜可调节胃束带折叠术(laparoscopic adjustable gastric banding,LAGB)治疗肥胖和肥胖伴发的2型糖尿病(type 2 diabetes,T2DM)的疗效与安全性。方法选取2012年4月-2014年4月在解放军总医院接受LAGBP 32例与腹腔镜袖状胃切除术(laparoscopic sleeve gastrectomy,LSG)肥胖患者34例,其中LAGBP组有9例肥胖合并2型糖尿病,LSG组有11例肥胖合并T2DM。比较两组人体测量指标、糖尿病相关指标、术后并发症。结果两组术前基线指标除年龄(P=0.027)外,差异均无统计学意义(P均>0.05)。术后12个月LAGBP组多余体质量减少率(excess weight loss rate,%EWL)低于LSG组[(57.52±13.53)%vs(73.43±10.78)%,P=0.000],但术后24个月[(72.55±10.14)%vs(71.23±13.32)%,P=0.817]、术后36个月[(71.23±13.35)%vs(67.43±15.32)%,P=0.299]两组%EWL无统计学差异。LAGB组与LSG组糖尿病缓解率分别为100%(9/9)、90.91%(10/11),差异无统计学意义(P=1.000)。LAGBP组手术时间[(90.0±12.2)min vs(97.0±15.7)min,P=0.048]、手术出血量[(14.7±4.5)ml vs(20.3±10.8)ml,P=0.008]、住院时间[(4.3±0.8)d vs(6.2±1.5)d,P=0.000]均低于LSG组。LAGBP组与LSG组术后并发症发生率分别为6.25%(2/32)、8.82%(3/34),差异无统计学意义(P=0.944)。结论与目前的主流术式LSG相比,LAGBP手术时间短、术中出血少、住院时间短,减重效果在术后2~3年时与LSG相当,是一种有效、安全、可逆的代谢新术式。

关键词：腹腔镜可调节胃束带折叠术腹腔镜袖状胃切除术肥胖 2型糖尿病