检索结果-南通市图书馆

动态血压水平和血压变异性与心肌做功指数的关系

在线全文

学校读者我要写书评

暂无评论

中华心血管病杂志 2015年第4期43卷 304-307页

作者：陈少敏陈宝霞聂颖冯新恒李昭屏郭丽君高炜北京大学第三医院心内科心血管分子生物学与调节肽卫生部重点实验室 100191 北京交通大学社区卫生服务中心内科

目的探讨动态血压水平和血压变异性与反映心脏整体功能的指标心肌做功指数（MPI）的关系.方法连续入选2013年1至9月北京大学第三医院心血管内科就诊未经治疗的高血压患者81例,行24 h动态血压监测和超声心动图检查.计算得到所有患者的M... 详细信息

目的探讨动态血压水平和血压变异性与反映心脏整体功能的指标心肌做功指数（MPI）的关系.方法连续入选2013年1至9月北京大学第三医院心血管内科就诊未经治疗的高血压患者81例,行24 h动态血压监测和超声心动图检查.计算得到所有患者的MPI,公式为MPI=（等容收缩时间＋等容舒张时间）/射血时间.根据左心室MPI将患者分为MPI＞0.47组（n=39）和MPI≤0.47组（n=42）,比较两组患者24 h、日间和夜间血压的平均值及标准差,以标准差代表血压变异性.采用多因素线性回归分析确定MPI的独立相关因素.结果 MPI＞ 0.47组高血压患者24 h和日间平均收缩压[分别为（130.1±8.7）和（134.0±8.2） mmHg（1 mmHg=0.133 kPa）],24h、日间和夜间平均舒张压[（89.1±6.3）、（90.9±6.4）和（83.1±9.9）mmHg],24 h和日间收缩压标准差[（13.7±3.3）和（14.2±3.5） mmHg]均明显高于MPI≤0.47组[分别为（124.8±8.7）、（126.7±8.8）、（84.5±7.1）、（86.2±7.4）、（76.4±7.5）、（11.8±2.1）和（10.4±1.9） mmHg,P均＜0.05].多因素回归分析显示,24 h平均舒张压（β=0.239,P=0.007）、24h收缩压标准差（β=0.333,P＜0.001）与MPI独立相关,其他与MPI独立相关的因素为左心室重量指数和二尖瓣环侧壁舒张早期运动峰速度.结论高血压患者舒张压水平的升高和收缩压变异性的增加伴随左心室整体功能的下降.

关键词：高血压血压变异性

Feasibility and physics potential of detecting ^(8)B solar neutrinos at JUNO

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2021年第2期45卷 93-110页

作者： Angel Abusleme Thomas Adam Shakeel Ahmad Sebastiano Aiello Muhammad Akram Nawab Ali Fengpeng An Guangpeng An Qi An Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde Marcondes de André Didier Auguste Andrej Babic Wander Baldini Andrea Barresi Eric Baussan Marco Bellato Antonio Bergnoli Enrico Bernieri David Biare Thilo Birkenfeld Sylvie Blin David Blum Simon Blyth Anastasia Bolshakova Mathieu Bongrand Clément Bordereau Dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Max Buesken Mario Buscemi Jose Busto Ilya Butorov Anatael Cabrera Hao Cai Xiao Cai Yanke Cai Zhiyan Cai Antonio Cammi Agustin Campeny Chuanya Cao guofu Cao Jun Cao Rossella Caruso Cédric Cerna Jinfan Chang Yun Chang Pingping Chen Po-An Chen Shaomin Chen Shenjian Chen Xurong Chen Yi-Wen Chen Yixue Chen Yu Chen Zhang Chen Jie Cheng Yaping Cheng Alexander Chepurnov Davide Chiesa Pietro Chimenti Artem Chukanov Anna Chuvashova Gérard Claverie Catia Clementi Barbara Clerbaux Selma Conforti Di Lorenzo Daniele Corti Salvatore Costa Flavio Dal Corso Christophe De La Taille Jiawei Deng Zhi Deng Ziyan Deng Wilfried Depnering Marco Diaz Xuefeng Ding Yayun Ding Bayu Dirgantara Sergey Dmitrievsky Tadeas Dohnal Georgy Donchenko Jianmeng Dong Damien Dornic Evgeny Doroshkevich Marcos Dracos Frédéric Druillole Shuxian Du Stefano Dusini Martin Dvorak Timo Enqvist Heike Enzmann Andrea Fabbri Lukas Fajt Donghua Fan Lei Fan Can Fang Jian Fang Marco Fargetta Anna Fatkina Dmitry Fedoseev Vladko Fekete Li-Cheng Feng Qichun Feng Richard Ford Andrey Formozov Amélie Fournier Haonan Gan Feng Gao Alberto Garfagnini Alexandre Göttel Christoph Genster Marco Giammarchi Agnese Giaz Nunzio Giudice Franco Giuliani Maxim Gonchar Guanghua Gong Hui Gong Oleg Gorchakov Yuri Gornushkin Marco Grassi Christian Grewing Maxim Gromov Vasily Gromov Minghao Gu Xiaofei Gu Yu Gu Mengyun Guan Nunzio Guardone Maria Gul Cong guo Jingyuan guo Wanlei guo xinheng guo Yuhang guo Paul Hackspacher Caren Hagner Ran Han Yan Yerevan Physics Institute YerevanArmenia UniversitéLibre de Bruxelles BrusselsBelgium Universidade Estadual de Londrina LondrinaBrazil Pontificia Universidade Catolica do Rio de Janeiro RioBrazil Pontificia Universidad Católica de Chile SantiagoChile Universidad Tecnica Federico Santa Maria ValparaisoChile Beijing Institute of Spacecraft Environment Engineering BeijingChina Beijing Normal University BeijingChina China Institute of Atomic Energy BeijingChina Institute of High Energy Physics BeijingChina North China Electric Power University BeijingChina School of Physics Peking UniversityBeijingChina Tsinghua University BeijingChina University of Chinese Academy of Sciences BeijingChina Jilin University ChangchunChina College of Electronic Science and Engineering National University of Defense TechnologyChangshaChina Chongqing University ChongqingChina Dongguan University of Technology DongguanChina Jinan University GuangzhouChina Sun Yat-Sen University GuangzhouChina Harbin Institute of Technology HarbinChina University of Science and Technology of China HefeiChina The Radiochemistry and Nuclear Chemistry Group in University of South China HengyangChina Wuyi University JiangmenChina Shandong University JinanChina Institute of Modern Physics Chinese Academy of SciencesLanzhouChina Nanjing University NanjingChina Guangxi University NanningChina East China University of Science and Technology ShanghaiChina School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuangChina Nankai University TianjinChina Wuhan University WuhanChina Xi’an Jiaotong University Xi’anChina Xiamen University XiamenChina School of Physics and Microelectronics Zhengzhou UniversityZhengzhouChina Institute of Physics National Chiao-Tung University Hsinchu National United University Miao-Li Department of Physics National T

The Jiangmen Underground Neutrino Observatory(JUNO)features a 20 kt multi-purpose underground liquid scintillator sphere as its main *** of JUNO's features make it an excellent location for^8B solar neutrino measurements,such as its low-energy threshold,high energy resolution compared with water Cherenkov detectors,and much larger target mass compared with previous liquid scintillator *** this paper,we present a comprehensive assessment of JUNO's potential for detecting^8B solar neutrinos via the neutrino-electron elastic scattering process.A reduced 2 MeV threshold for the recoil electron energy is found to be achievable,assuming that the intrinsic radioactive background^(238)U and^(232)Th in the liquid scintillator can be controlled to 10^(-17)g/*** ten years of data acquisition,approximately 60,000 signal and 30,000 background events are *** large sample will enable an examination of the distortion of the recoil electron spectrum that is dominated by the neutrino flavor transformation in the dense solar matter,which will shed new light on the inconsistency between the measured electron spectra and the predictions of the standard three-flavor neutrino oscillation *** m^(2)_(21)=4.8times10^(-5);(7.5times10^(-5))eV^(2),JUNO can provide evidence of neutrino oscillation in the Earth at approximately the 3sigma(2sigma)level by measuring the non-zero signal rate variation with respect to the solar zenith ***,JUNO can simultaneously measureDelta m^2_(21)using^8B solar neutrinos to a precision of 20% or better,depending on the central value,and to sub-percent precision using reactor antineutrinos.A comparison of these two measurements from the same detector will help understand the current mild inconsistency between the value of Delta m^2_(21)reported by solar neutrino experiments and the KamLAND experiment.

关键词： neutrino oscillation solar neutrino JUNO

在线全文

学校读者我要写书评

暂无评论

自助式选择项控件的开发

电脑编程技巧与维护 2009年第24期 46-49,125页

作者：郭文超谭新衡刘万勇邯郸市农业学校计算机教研室邯郸056001

为了便于程序员在数据库开发中处理选择项的问题,权衡处理选择项方法的利弊,基于Oracle数据库,利用C#开发了一个比较实用的控件。该控件可以定义各种不同类型的选择项,并且将这些选择项存储在数据库的一个表中。程序员在开发过程中只需... 详细信息

为了便于程序员在数据库开发中处理选择项的问题,权衡处理选择项方法的利弊,基于Oracle数据库,利用C#开发了一个比较实用的控件。该控件可以定义各种不同类型的选择项,并且将这些选择项存储在数据库的一个表中。程序员在开发过程中只需在引用控件时定义类型,在显示选择项时判断有效标志,并按照调用频率排序即可,避免了不必要的代码改动。

关键词： Oracle C# 选择项控件选择项排序选择项可用

锂铝层状双金属氢氧化物的制备及其锂脱嵌过程

在线全文

学校读者我要写书评

暂无评论

化工进展 2024年第9期43卷 5262-5274页

作者：杨新衡纪志永郭志远刘萁张盼盼汪婧刘杰毕京涛赵颖颖袁俊生河北工业大学化工学院海水资源高效利用化工技术教育部工程研究中心天津300401 河北省现代海洋化工技术协同创新中心天津300401

锂铝层状双金属氢氧化物(Li/Al-LDHs)是一种适用于高镁锂比卤水中提锂的吸附剂,但其存在吸附容量偏低、吸附机理与适用条件不够清晰等问题。本工作以铝粉、氢氧化锂为原料制备Li/Al-LDHs,考察了适用条件下溶液中阴阳离子对吸附过程的影... 详细信息

锂铝层状双金属氢氧化物(Li/Al-LDHs)是一种适用于高镁锂比卤水中提锂的吸附剂,但其存在吸附容量偏低、吸附机理与适用条件不够清晰等问题。本工作以铝粉、氢氧化锂为原料制备Li/Al-LDHs,考察了适用条件下溶液中阴阳离子对吸附过程的影响并进行了不同溶液组成下的提锂性能测试,结合红外光谱测试和X射线光电子能谱等表征明晰了锂脱嵌机理。结果表明,Li/Al-LDHs在卤水中的最大吸附容量为8.350mg/g,阳离子选择性顺序为Li^(+)>Na^(+)>Mg^(2+)>Ca^(2+)>K^(+)。Li/Al-LDHs对Li^(+)的吸附符合Langmuir等温吸附模型和准二级吸附动力学模型,吸附过程主要是基于尺寸筛分效应进行的,Li^(+)进入吸附剂层间的空位后需要等量的阴离子(Cl^(-)、SO_(4)^(2-)等)进行电荷平衡,其吸锂容量随溶液体系总离子浓度的增加而变大,因此更适用于从高含盐量卤水中提锂。研究结果可为后续废旧金属铝制取Li/Al-LDHs用于盐湖卤水提锂提供技术参考。

关键词：锂铝层状双金属氢氧化物(Li/Al-LDHs) 吸附剂高镁锂比吸附锂提取

急诊经皮冠状动脉介入治疗后心电图ST段回落程度与预后的观察

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

临床心血管病杂志 2011年第8期27卷 597-599页

作者：李美红牛杰冯新恒郭丽君张福春王贵松郭静萱高炜北京大学第三医院心内科

目的:探讨急性ST段抬高型心肌梗死(STEMI)直接经皮冠状动脉介入治疗(PCI)后心电图ST段的回落程度与预后的关系。方法:入选225例患者,其中急性前壁梗死118例,非前壁心肌梗死107例。依据PCI后心电图ST段抬高总和与总回落百分比(sumSTR)将... 详细信息

目的:探讨急性ST段抬高型心肌梗死(STEMI)直接经皮冠状动脉介入治疗(PCI)后心电图ST段的回落程度与预后的关系。方法:入选225例患者,其中急性前壁梗死118例,非前壁心肌梗死107例。依据PCI后心电图ST段抬高总和与总回落百分比(sumSTR)将全部患者分为sumSTR>70%组(完全回落组)、30%

关键词：心肌梗死血管成形术,经腔,经皮冠状动脉 ST段回落

TrkA、Ki-67、CD34在肾透明细胞癌中的表达及临床意义

在线全文

学校读者我要写书评

暂无评论

临床医学 2018年第10期38卷 19-22页

作者：张新恒单中杰张楠马曜辉郭亮河南省三门峡市中心医院泌尿外科 472000 郑州人民医院 450000

目的探讨神经生长因子受体络氨酸受体激酶A(TrkA)和CD34及Ki-67在肾透明细胞癌中的表达及临床意义。方法应用免疫组化方法检测48例肾透明细胞癌组织、25例正常肾脏组织中TrkA、CD34及Ki-67的表达。应用SPSS 16. 0统计软件,不同组间TrkA... 详细信息

目的探讨神经生长因子受体络氨酸受体激酶A(TrkA)和CD34及Ki-67在肾透明细胞癌中的表达及临床意义。方法应用免疫组化方法检测48例肾透明细胞癌组织、25例正常肾脏组织中TrkA、CD34及Ki-67的表达。应用SPSS 16. 0统计软件,不同组间TrkA、CD34及Ki-67的阳性表达的比较采用交叉表χ~2检验。TrkA与CD34及Ki-67的表达的相关性用Spearman等级相关分析。结果肾透明细胞癌组和正常肾组织组中:TrkA的表达阳性率较高(83. 0%和58. 3%),两组间比较差异有统计学意义(χ~2=5. 416,P=0. 026); CD34在肾透明细胞癌组中的表达阳性率与正常肾组织组相比明显增高(39. 6. 0%和4. 2%),差异有统计学意义(χ~2=27. 422,P <0. 01); Ki-67在肾透明细胞癌组中的阳性表达率高于正常肾脏组(24. 5%和0),二者比较差异有统计学意义(χ~2=7. 083,P <0. 01)。在转移瘤及高分期肿瘤中TrkA的阳性表达与CD34及Ki-67的阳性表达具有相关性(r=0. 911、0. 548、0. 588、0. 594)。结论 TrkA在肾透明细胞癌中高表达,在高分期及转移瘤中与CD34及Ki-67的表达有相关性。联合检测TrkA、CD34及Ki-67对肾透明细胞癌诊断和预后可能有一定的临床意义。

关键词：肾透明细胞癌酪氨酸受体激酶A CD34 Ki-67

Sub-percent precision measurement of neutrino oscillation parameters with JUNO

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2022年第12期46卷 28-49页

作者： Angel Abusleme Thomas Adam Shakeel Ahmad Rizwan Ahmed Sebastiano Aiello Muhammad Akram Abid Aleem Fengpeng An Qi An Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde Marcondes de André Didier Auguste Weidong Bai Nikita Balashov Wander Baldini Andrea Barresi Davide Basilico Eric Baussan Marco Bellato Antonio Bergnoli Thilo Birkenfeld Sylvie Blin David Blum Simon Blyth Anastasia Bolshakova Mathieu Bongrand Clément Bordereau Dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Jose Busto Ilya Butorov Anatael Cabrera Barbara Caccianiga Hao Cai Xiao Cai Yanke Cai Zhiyan Cai Riccardo Callegari Antonio Cammi Agustin Campeny Chuanya Cao guofu Cao Jun Cao Rossella Caruso Cédric Cerna Chi Chan Jinfan Chang Yun Chang guoming Chen Pingping Chen Po-An Chen Shaomin Chen Xurong Chen Yixue Chen Yu Chen Zhiyuan Chen Zikang Chen Jie Cheng Yaping Cheng Yu Chin Cheng Alexey Chetverikov Davide Chiesa Pietro Chimenti Artem Chukanov Gérard Claverie Catia Clementi Barbara Clerbaux Selma Conforti Di Lorenzo Daniele Corti Flavio Dal Corso Olivia Dalager Christophe De La Taille Zhi Deng Ziyan Deng Wilfried Depnering Marco Diaz Xuefeng Ding Yayun Ding Bayu Dirgantara Sergey Dmitrievsky Tadeas Dohnal Dmitry Dolzhikov Georgy Donchenko Jianmeng Dong Evgeny Doroshkevich Marcos Dracos Frédéric Druillole Ran Du Shuxian Du Stefano Dusini Martin Dvorak Timo Enqvist Heike Enzmann Andrea Fabbri Donghua Fan Lei Fan Jian Fang Wenxing Fang Marco Fargetta Dmitry Fedoseev Zhengyong Fei Li-Cheng Feng Qichun Feng Richard Ford Amélie Fournier Haonan Gan Feng Gao Alberto Garfagnini Arsenii Gavrikov Marco Giammarchi Nunzio Giudice Maxim Gonchar Guanghua Gong Hui Gong Yuri Gornushkin Alexandre Göttel Marco Grassi Vasily Gromov Minghao Gu Xiaofei Gu Yu Gu Mengyun Guan Yuduo Guan Nunzio Guardone Cong guo Jingyuan guo Wanlei guo xinheng guo Yuhang guo Paul Hackspacher Caren Hagner Ran Han Yang Han Miao He Wei He Tobias Heinz Patrick Hellmuth Yuekun Heng Rafael Herrera YuenKeung Ho Yerevan Physics Institute YerevanArmenia UniversiéLibre de Bruxelles BrusselsBelgium Universidade Estadual de Londrina LondrinaBrazil Pontificia Universidade Catolica do Rio de Janeiro Rio de JaneiroBrazil Pontificia Universidad Católica de Chile SantiagoChile Universidad Tecnica Federico Santa Maria ValparaisoChile Beijing Institute of Spacecraft Environment Engineering BeijingChina Beijing Normal University BeijingChina China Institute of Atomic Energy BeijingChina Institute of High Energy Physics BeijingChina North China Electric Power University BeijingChina School of Physics Peking UniversityBeijingChina Tsinghua University BeijingChina University of Chinese Academy of Sciences BeijingChina Jilin University ChangchunChina College of Electronic Science and Engineering National University of Defense TechnologyChangshaChina Chongqing University ChongqingChina Dongguan University of Technology DongguanChina Jinan University GuangzhouChina Sun Yat-Sen University GuangzhouChina Harbin Institute of Technology HarbinChina University of Science and Technology of China HefeiChina The Radiochemistry and Nuclear Chemistry Group in University of South China HengyangChina Wuyi University JiangmenChina Shandong University JinanChinaand Key Laboratory of Particle Physics and Particle Irradiation of Ministry of EducationShandong UniversityQingdaoChina Institute of Modern Physics Chinese Academy of SciencesLanzhouChina Nanjing University NanjingChina Guangxi University NanningChina East China University of Science and Technology ShanghaiChina School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuangChina Nankai University TianjinChina Wuhan University WuhanChina Xi'an Jiaotong University Xi'anChina Xiamen University XiamenChina School of Physics and Microelectronics Zhengzhou UniversityZhengzhou

JUNO is a multi-purpose neutrino observatory under construction in the south of *** publication presents new sensitivity estimates for the measurement of the △m_(31)^(2),△m_(21)^(2),sin^(2)θ_(12),and sin^(2)θ_(13) oscillation parameters using reactor antineutrinos,which is one of the primary physics goals of the *** sensitivities are obtained using the best knowledge available to date on the location and overburden of the experimental site,the nuclear reactors in the surrounding area and beyond,the detector response uncertainties,and the reactor antineutrino spectral shape constraints expected from the TAO satellite *** is found that the △m_(21)^(2) and sin^(2)θ_(12) oscillation parameters will be determined to 0.5%precision or better in six years of data *** the same period,the △m_(31)^(2) parameter will be determined to about 0.2%precision for each mass ordering *** new precision represents approximately an order of magnitude improvement over existing constraints for these three parameters.

关键词： neutrino oscillation reactor antineutrino precision measurement JUNO

在线全文

学校读者我要写书评

暂无评论

磁耦合谐振式无线电能传输系统距离特性分析

黑龙江工业学院学报（综合版） 2024年第7期24卷 113-121页

作者：李新恒周小杰郭家稳娄树勇孙雯安徽科技学院电气与电子工程学院安徽蚌埠233100

在磁耦合共振系统中,相邻线圈之间距离的变化会影响传输性能。为了研究距离对系统传输性能的影响,建立了四线圈结构的磁耦合无线电能传输系统。基于互感耦合理论,得到了传输功率和效率与耦合系数之间的关系。在仿真分析和实验证据的验证... 详细信息

在磁耦合共振系统中,相邻线圈之间距离的变化会影响传输性能。为了研究距离对系统传输性能的影响,建立了四线圈结构的磁耦合无线电能传输系统。基于互感耦合理论,得到了传输功率和效率与耦合系数之间的关系。在仿真分析和实验证据的验证下,发现耦合系数k_(23)(发射线圈和接收线圈之间)是影响传输效率的最显著因素。在最佳k_(23)下,传输效率会随着耦合系数k_(12)(源线圈与发射线圈之间)的增大而增大;随着耦合系数k_(34)(接收线圈与负载线圈之间)的增大,传输效率呈先增大后减小的趋势。同时推导了k_(12)、k_(23)、k_(34)的理论计算公式,为无线电能传输系统的参数优化和传递效率的提高提供了参考。

关键词：无线能量传输磁耦合谐振耦合系数

孙丽平教授“从胆论治,兼顾心肾”治疗儿童抽动障碍经验撷菁

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

中国医药导报 2023年第32期20卷 156-159页

作者：蒋欣恒孙维芳林海娇郭磊孙丽平长春中医药大学中医学院吉林长春130117 长春中医药大学附属医院儿童诊疗中心吉林长春130022

儿童抽动障碍是一种慢性神经精神障碍性疾病,是儿童时期最常见的运动性障碍,其发病率有逐年升高的趋势。本病的西医发病机制尚未明确,中医多从肝亢、外风、痰热、阴虚等分析论治,予以平肝、疏风、涤痰、滋阴等方法进行治疗。导师孙丽平... 详细信息

儿童抽动障碍是一种慢性神经精神障碍性疾病,是儿童时期最常见的运动性障碍,其发病率有逐年升高的趋势。本病的西医发病机制尚未明确,中医多从肝亢、外风、痰热、阴虚等分析论治,予以平肝、疏风、涤痰、滋阴等方法进行治疗。导师孙丽平教授认为“胆虚”为本病的常见病机之一,提出“从胆论治,兼顾心肾”的诊疗思路,以温胆定惊为主,兼以宁心安神、补肾助阳为法,选方用药取温胆、宁心、益肾之品,临床获效。

关键词：胆虚善恐胆通心肾温胆胆心肾同治