简介:瞄准:探索门静脉的影响,并且为PVA的临床的申请建立一个理论基础在门以后的血液动力学的变化仙子上的静脉的动脉血化(PVA)胆汁的脉管的丛(PVP)词法结构和肝的病理。方法:Sprague-Dawley老鼠随机被划分成控制和PVA组。在PVA以后,门静脉的血液动力学的变化和hepatohilarPVP的词法结构用Doppler超声,肝功能测试,墨水灌注透明性管理和计算机的三维的重建被观察微可视化,和病理学的检查从胆汁管墙和肝在织物上被执行。结果:在PVA以后,门静脉的代表性的区域和血流被增加,并且增加随着时间的过去变得更重要,在某个范围。如果在PVA限制流动的措施没被采用,高血流将导致肝内门静脉和它的分支的膨胀,在大桶集成通信适配器内膜在骨胶原和纤维退化增加。除了glutamic焦葡萄酸转氨酶(通用终端),另外的肝功能测试是正常的。结论:有某个流动和氧含量的血为充满PVP并且遇见胆汁管墙的需氧量是重要的。在PVA以后,维持有在arterialized门静脉的高氧含量和高流动的血可以由并行管倒流充满PVP的hepatohilar胆汁管墙的正常形态学是解剖基础。限制血流的一项足够的措施在PVA是必要的。
简介:LocatedsouthotKangdeseandNyain-qentanglhaMountains,-ShannanliesonthelowerandmiddlereachesoftheYarlungZangboRiver.ItconnectswithLhasainthenorth,abutsNyingchiPre-fecturenheeast,neighbosXigazeinthewest,andbor-dersBhutanandIndiaacrosstheHimalayas.Theprefecturesmea-
简介:在日常生活,人们经常在某些时期重复常规线路。在这篇论文,一个采矿系统被开发经过旅行发现个人的连续线路模式。数个人动人的地位的差异的无异状,采矿系统采用记录的适应GPS数据,五个数据过滤保证clean使数据犯错。采矿系统使用客户机/服务器体系结构保护个人隐私并且减少计算负担。服务者进行主要采矿过程,但是与到recover的不够的信息,真实个人发送。改进顺序的模式采矿的可伸缩性的无异状,一个新奇模式采矿算法,连续线路模式采矿(CRPM),被建议。这个算法能容忍在真实线路和摘录的不同骚乱经常的模式。基于九个人的旅行表演,那CRPM能更长多于twotimes提取的试验性的结果比传统的线路模式采矿算法发送模式。
简介:FollowingtheInspectionRouteofEmperorQianlongThelatestinChinaToday'sseriesonChinaHeritage'94focusesonQianlong,perhapsthemostac...
简介:Theeffectofportalveintumorthrombus(PVTT)ontheprognosisofpatientswithhepatocellularcarcinomahasbecomeclearoverthepastseveraldecades.However,identifyingthemechanismsandperformingthediagnosisandtreatmentofPVTTremainchallenging.Therefore,thisstudyaimedtosummarizetheprogressintheseareas.AcomputerizedliteraturesearchinMedlineandEMBASEwasperformedwiththefollowingcombinationsofsearchterms:'hepatocellularcarcinoma'AND'portalveintumorthrombus.'AlthoughseveralsignaltransductionormolecularpathwaysrelatedtoPVTThavebeenidentified,theexactmechanismsofPVTTarestilllargelyunknown.Manybiomarkershavebeenreportedtodetectmicrovascularinvasion,butnonehaveprovedtobeclinicallyusefulbecauseoftheirlowaccuracyrates.SorafenibistheonlyrecommendedtherapeuticstrategyinWesterncountries.However,moretreatmentoptionsarerecommendedinEasterncountries,includingsurgery,radiotherapy(RT),transhepaticarterialchemoembolization(TACE),transarterialradioembolization(TARE),andsorafenib.Therefore,weestablishedastagingsystembasedontheextentofportalveininvasion.Ourstagingsystemeffectivelypredictsthelong-termsurvivalofPVTTpatients.Currently,severalclinicaltrialshadshownthatsurgeryiseffectiveandsafeinsomePVTTpatients.RT,TARE,andTACEcanalsobeperformedsafelyinpatientswithgoodliverfunction.However,onlyafewcomparativeclinicaltrialshadcomparedtheeffectivenessofthesetreatments.Therefore,morerandomizedcontrolledtrialsexaminingtheextentofPVTTshouldbeconductedinthefuture.
简介:BeOnanoparticlesweresynthesizedbypolyacrylamidegelroute.TheeffectsoftheprocessingparametersonthemorphologyandsizeofthesynthesizedBeOnanoparticleswereinvestigated.Thecalcinationtemperatureofthegelprecursorcontainingberylliumsulfatewasdeterminedbythermogravimetryanddifferentialscanningcalorimetry(TG-DSC),whichisaround690Cand160Clowerthanthegeneraltemperature.Xraydiffractometry(XRD),transmissionelectronmicroscopy(TEM),andspecificsurfaceareameasurements(BET)showedthatthesynthesizednanoparticlesunder700Cwerepure,globularandabout~5-20nmwithnarrowdistribution.Interestingly,thenanograinscoalescedandgrewunderhighercalcinationtemperaturesandlongercalcinationtime.Theinfluenceofcalcinationtemperatureonthemorphologyandgrowthbehaviorisgreaterthanthatofitsduration.Theactivationenergyforgraingrowthwasestimatedtobe24.53kJ/mol,andthedominantgrowthmechanismwasmostlikelytoberelatedtothevaportransportinporecontrolmodeandgrain-rotation-inducedgraincoalescence(GRIGC)mechanism.
简介:WesummarizeinthisoverviewachievementsincurrentresearchfrontiersinAsiansanddustwithemphasisonthemethodforsanddustresearch,thesourcesofsanddustaerosols,emissionofsanddust,mechanismofsanddustweather,chemicaltransformationduringtransport,andinfluencesonclimaticenvironmentandoceans.OurmainresultsshowthatmostofAsiansanddustcomesfromMongolia,theGobiDesert,aridandsemiariddesertareasinnorthwestChina,whichisdividedintoinitialsourcesandenhancedsources.HalfoftheglobalproductionofdustoriginatesfromAsiandustsourceregions.Asiandustweatherissoimmensethatitcancovera5-7-dayjourneyfromthesourcestotheKoreanPeninsula,JapanIslands,andthePacificOceantoevenimpactNorthAmerica.Asiandustweatherplaysanactiveroleinthebiogeochemicalcyclesoftraceelementsinthemid-latitudeNorthernHemisphere.
简介:作为一个挡土墙,门水注射板桩(PWISP)在2000出现在海岸工程。尽管有许多系统的方法,处理这个问题,在新结构上有在定义在二堆积之间的地压的因为困难的很少的集中。一个新方法在这篇论文被建议获得在PWISP之间的地压。对翻的稳定性分析作为后果列在后面。用FiniteElement分析(FEA)软件ANSYS,两个都,接触元素的土壤和那些的非线性的特征被考虑在接触表面上获得地压分发。基于FEA的结果,Rankin“s理论和slip飞机理论,在堆积之间的内部表面上的地压的公式被给。作为对它起作用的外面的力量作为分析目标和地压假定PWISP,对PWISP翻的稳定性的方程被介绍。最后,一些参数对翻关于PWISP的thest能力被讨论,例如前面堆积,在二排堆积之间的距离,内部磨擦角度和地球的结合的嵌入的深度。结果证明结合和内部磨擦角度的增加将减少距离和嵌入的深度,并且因此对翻提高稳定性。明确地,当距离是最大的挖掘深度的1/3-2/3时,二排堆积在稳定性给最好的表演。