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39 个结果
  • 简介:BackgroundPleuraleffusionaftertheFontanoperationcontributessignificantlytomorbidityandprolongedhospitalization.Thepurposeofthepresentstudywastoinvestigatewhetherchesttubesplacedindifferentcavitiesduringthesurgerywouldcontributetothedrainageandalsotoevaluateriskfactorsofthoracicdrainagewithcentralvenouscatheteraftertotalcavopulmonaryconnectionintheeraofthecentralvenouscatheter.MethodsFromJanuary2009toJune2012,109consecutivepatientsunderwenttotalcavopulmonaryconnectionatGuangdongGeneralHospital.With102patientsforinvestigation,preoperative,intraoperativeandpostoperativefactorswereobtained.Thoracicdrainagewithcentralvenouscatheterwaswhenevernecessary.Durationofchesttubedrainageandtimeofthoracicdrainagewithcentralvenouscatheteraddeduptototaldurationofpleuraldrainage.BinarylogisticregressionusingforwardLRmethodwasappliedfortheanalysisoftheriskfactorsforthoracicdrainagewithcentralvenouscatheter.ResultsAftertotalcavopulmonaryconnection,comparedwithchesttubesplacedinsinglepleuralcavitywithorwithoutpericardialorretrosternalcavity,thoseinbothpleuralcavitiesseemedtohavethechanceoflongerhospitalstay(P=0.028).Noothersignificantdifferenceswereobtainedinfactorsofventilationtime,extubatedcentralvenouspressureinsuperiorvenacava,ICUstay,totaldurationofpleuraldrainage.Sildenafilwasthepreventivefactorforreducingcentralvenouspressureandpreventingfrompostoperativepleuraleffusion.ConclusionsAftertotalcavopulmonaryconnection,patientswithtubesplacedinbothpleuralcavitieswouldnothavethechanceofshortertotaldurationofpleuraldrainageandsurprisinglyturnsouttohavelongerhospitalstay.Sildenafilisapreventivefactorforthoracicdrainagewithcentralvenouscatheter.

  • 标签: 胸腔积液 肺动脉 静脉 引流 导管 连接
  • 简介:这研究的目的是调查形态学,在锦鸡儿属植物arborescens的种子梗的光合的产品的传播线路打。在在flowering以后的各种各样的阶段并且用扫描电子显微镜学在种子成熟评估种子梗的角色。我们发现成熟种子梗主要由容器,sclerenchymatous房间和parenchymatous房间组成了。伸长的房间在在种子梗和种子之间的连接形成了一枚戒指,并且一大空被sclerenchymatous房间的二层在内部种子生产,它工作支撑种子生长。在戒指的中心的洞在当种子成熟,扩大的种子开发,和洞的一个早阶段期间被关上。为材料运输有二条线路,它从种子梗开始了:从种子上衣的到胚胎,和直接进入胚胎的另外一个。容器,充满种子梗,是为由种子的营养素的吸收的小径。容器浓密地在种子梗被包装,并且容器的房间墙的第二等的变厚被网络线变厚描绘,当在种子以内的容器的房间墙的第二等的变厚被螺丝钉线变厚描绘时。容器的词法特征对它的功能适应。

  • 标签: 锦鸡儿属植物 种子成熟 连接 上衣 扫描电子显微镜 脉管
  • 简介:GeneralDecompositionofSpinConnectionandTopologicalStructureinGauss-Bonnet-ChernTheorem¥LiXiguoandDuanYishi(Institute...

  • 标签: f ?
  • 简介:Inordertoinvestigatethecalculationmethodsoncrackresistancecapacityofconnectioncomposedofcrossshapedsteelencasedultrahighstrengthconcrete(CSSEUHSC)columnsandsteelencasedconcrete(SEC)beamsundercycleloads,sixinteriorconnectionspecimensweretestedinthelaboratory.Adiscussiononthecrackresistancecapacitywaspresented.Calculationmethodsofcrackresistancecapacitywerededucedbasedontheexperimentalcaseandcalculationresultswereingoodagreementwiththeexperimentalresults.TheresearchresultsindicatedthatparametersofconnectioncomposedofCSSEUHSCcolumnsandSECbeamswithbettercrackresistanceperformancemaybereferredforengineeringapplication.

  • 标签: SEISMIC damage calculation methods CSSEUHSC COLUMN
  • 简介:Inthispaper,thesmoothconnectionbetweentwoB-splinesurfacesisdiscussed.First,abriefproofofsomesimplesufficientconditionsofG~0andG~1continuityisgiven.Onthisbasis,anovelmethodforG~0orG~1connectionbetweentwoadjacentB-splinesurfacesispresented.Areparameterizationstepisfirstlytakenforoneofthesurfacessuchthattheyhavethesameparameterizationinvdirection,then,adjusttheirboundarycontrolverticestomakethemG~0orG~1connected.TheG~1connectionparameterisdeterminedbyanoptimizationproblem.Comparedwiththeexistedmethods,ourmethodissimpleandeasytobeusedinpractice.

  • 标签: B样条曲面 重新参数化 平滑连接 边界控制顶点 充分条件 优化问题
  • 简介:在这份报纸,一个可伸缩的基于连接的流动控制计划为应用相关的network-on-chip(NoC)被建议。建议计划利用NoC,也就是交通的可预测性和丰富的电线资源的二个特殊特征,到完成重要表演改进。首先,爆炸注射数据被调整进经常的数据溪流,一个基于连接的方法被用来保证所有连接没在任何时间被过载。因而,在网络的包的数字被减少,导致减少的拥挤可能性并且改进了通讯性能。第二,中央控制器的简单体系结构被建议保证建议计划有小区域开销并且是可伸缩的。模拟结果证明与传统的switch-to-switch(圣)相比,流动控制计划和分配前基于流动控制计划,建议计划极大地增加产量并且与合理区域和精力开销砍倒平均潜伏。

  • 标签: 流量控制 应用程序 可扩展 网络芯片 连接 控制计划
  • 作者: Al-Mutairi Mansour Aselan Adnan Al-Muhaya Mustafa Abo-Haded Hany
  • 学科: 医药卫生 >
  • 创建时间:2020-08-10
  • 出处:《儿科学研究(英文)》 2020年第02期
  • 机构:Pediatric Cardiology Department, Madinah Cardiac Centre (MCC), Madinah, Saudi Arabia; Pediatric Cardiology Team, Pediatric Cardiology Unit, Department of Pediatrics, Maternity and Children Hospital (MCH), Al-Madinah Al-Munawarah, Saudi Arabia,Pediatric Cardiology Team, Pediatric Cardiology Unit, Department of Pediatrics, Maternity and Children Hospital (MCH), Al-Madinah Al-Munawarah, Saudi Arabia,Pediatric Cardiology Department, Madinah Cardiac Centre (MCC), Madinah, Saudi Arabia,Pediatric Cardiology Team, Pediatric Cardiology Unit, Department of Pediatrics, Maternity and Children Hospital (MCH), Al-Madinah Al-Munawarah, Saudi Arabia; Pediatric Cardiology Unit, Department of Pediatrics, Faculty of Medicine, Mansoura University, Mansoura, Egypt
  • 简介:AbstractIntroduction:Obstructed total anomalous pulmonary venous connection (TAPVC) is one of the commonest seen emergencies in pediatric cardiology centers.Case presentation:Our case was diagnosed to have this anomaly, showing early respiratory distress resulting from severe pulmonary congestion. Palliative stenting of the obstruction was done, which helped in stabilizing the debilitated hemodynamics of the baby before surgery, thus a good surgical outcome and prognosis are expected.Conclusion:This intervention may be listed as a vital measurement in the preoperative cardiac stabilization plan for infants with obstructed TAPVC.

  • 标签: Obstruction Total anomalous pulmonary venous connection (TAPVC) Palliative stent
  • 简介:Asthewavelengthdivisionmultiplexing(WDM)technologymaturesandthedemandsforbandwidthincrease,survivabilitybecomesmoreandmoreimportantingeneralizedmulti-protocollabelswitching(GMPLS)controlledintelligentopticalnetworks(IONs).Therearegreatintereststostudytheperformanceofrestorabilityunderonecertainconnectionmanagementstrategy.Andstudiesintheproblemofprovidingrecoveryfromlinkfailuresundertwodifferentresourcereservationschemes,forwardreservationprotocols(FRPs)andbackwardreservationprotocols(BRPs),arepresented.Theyareexaminedfromthepointofviewofconnectionblockingprobability,restorabilityandaveragerecoverytime.Thetwodifferentconnectionmanagementschemesandthesurveyofdifferentrecoveryschemesarefirstpresented.Theperformanceoftheserecoverystrategiesisanalyzedandcomparedboththroughtheoreticalanalysisandsimulationresults.ThemainstressedideaisthatusingBRPsgivesthebestperformanceintermsofrestorabilityandblockingprobabilityinrestorableGMPLSnetworks.

  • 标签: 广义多协议标记转换网络 分布式连接管理 网络管理 光网络 波长分隔多路技术
  • 简介:Beam-columnorbeam-wallconnectionsareanimportantprobleminhigh-risebuildings.Inthisstudy,basedontheanalysisofanexamplestructure,ananalyticalmodelfordesignofthesemi-rigidconnectionsbetweensteelbeamsandRCwallsinhigh-risehybridbuildingsisproposed.Also,themechanicalcharacteristicsoftheseconnectionssubjectedtolowreversedcyclicloadingareinvestigatedthroughcomparisonofexperimentalresultsfromthreesemi-rigidconnectionsandtworigidconnections.Moreover,somelatentproblemsfordesignoftheseconnectionsaswellasthecorrespondingsolutionsarediscussed.Theresultsfromtheexperimentsandanalysesindicatethatsemi-rigidconnectionsexhibitsatisfactorycapacityandseismicperformance,andtheproposeddesigncanbeusedinpractice.

  • 标签: 地震 高层建筑 混合结构 安全设计
  • 简介:Energy-storageweldingconnectioncharacteristicsofrapidlysolidifiedAZ91DMgalloyribbonswith40~70μmthicknessareinvestigatedusingamicrotypeenergy-storageweldingmachine.Themicrostructureandperformanceoftheconnectionjointsareanalyzedandstudied.Theresearchresultsindicatethatenergy-storageweldingisabletorealizethespotweldingconnectionofAZ9lDMgalloyribbons.Theweldingnuggetconsistsofdevelopedα-Mgequiaxedgrainswiththesizesof1.2~2.7μmandintergranulardistributedβ-Mg17Al12compounds.Thethicknessofbondzoneisabout4μmandthesolidificationmicrostructureischaracterizedbythefineequiaxedgrainswiththesizesof0.8~1.2μm,andgrainboundaryhasbecomecoarsening.ThecolumnarcrystalinHAZalsobecomesslightlycoarseningandthegrainboundaryhasbroadened,however,thereisnoobviouschangeinitsprimitivemorphologyandcrystallographicdirection.Whenweldingenergyisabout2.0J,theweldingjointswithhighershearstrengthandsmallerelectricalresistivityareobtained.

  • 标签: AZ91D 快速硬化 储能焊接 微结构 镁合金
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  • 简介:在场的作者证实建议在在西藏的高原(TP)上的雪深度的变化在冬季(JFM)与诺思大西洋摆动(NAO)的变化被连接。在NAO的积极阶段期间,亚洲副热带的西的喷气加强,India-Myanmar马槽加深。这两个过程在TP上提高上升运动。和India-Myanmar马槽在上游的加强的southerlies,加强的向上的运动在TP上赞成更大的降雪,它与东方亚洲tropospheric在随后的迟了的春天(4月鈥揗ay)冷却被联系。因此,在在1970年代末以后的TP上的冬季雪深度的十的增加被建议是在提高的冬季NAO和在东亚上冷却的迟了的春天tropospheric之间的连接的指示物。关键词西藏的高原-雪深度-诺思大西洋摆动(NAO)-tropospheric冷却

  • 标签: 积雪深度 青藏高原 对流层 审计署 东亚 连接
  • 简介:摘 要:地方铁路连乐铁路在燕岗车站接入成昆铁路,从而实现与国铁路网的互联互通。燕岗地区同时开工建设的项目有燕岗车站的扩能改造及成昆增建双线工程,在这样一种特殊的历史背景下,更增添了该处接轨方案的不平凡和特殊色彩。接轨方案从2013年开始报批至2021年铁路总公司才最终予以审定,期间各种审查,修改,完善,蜿蜒曲折、辗转反侧,也充分反映了该方案的复杂性。本文从方案的研究思路出发,综合考虑既有铁路、在建铁路、本线特点,以行车组织为导向的前提下,寻求最终经济合理的工程方案。

  • 标签: 地方铁路 燕岗接轨 方案研究。