简介:摘要随着我国现代化科学技术的不断发展,在科学技术飞速发展的同时,人们对于现今的机械设备应用也越来越广泛,75T电动液压绞车作为一种专门的机械生产设备,被广泛地应用到现代化的海洋石油发展中,并且在其设备的应用下,有效的提升了海油建造业的生产效率,因此在当前形势下的海油发展中,应该加强对75T电动液压绞车进行专门的分析。鉴于此,本文针对75T电动液压绞车的故障进行了专门的分析,首先就75T电动液压绞车的结构进行了分析,其次针对PC104嵌入式计算机作业中液压绞车状态检测进行了分析,最后就75T电动液压绞车故障诊断系统应用展开了全面的分析,希望在本文的研究帮助下,能够为75T电动液压绞车故障诊分析提供参考。
简介:摘要目的分析本院门诊和住院病人中100例心电图高耸T波的临床意义。方法诊断标准(1)肢体导联>0.5mv;(2)T波>QRS电压。胸壁导联>1.0mv,但有些正常人可高达1.5mv。因此,高耸T波的动态改变更有意义。结果急性缺血性高耸T波22例(22%),高钾血症6例(6%),主动脉瓣关闭不全3例(3%),早期复极40例(40%),完全性左束支传导阻滞5例(5%),脑血管意外2例(2%),迷走神经张力增高2例(2%),正常变异15例(15%),二尖瓣病变3例(3%)。结论高耸T波是较为常见的心电图现象,病因不同其治疗和预后并不完全相同,应与临床结合,特别是动态观察T波变化,及时对高耸T波作出准确判断。
简介:IncreasedexpressionofFasbyhematopoieticprogenitorsinaplasticanemia(AA)suggeststhatFas/Fasligand(FasL)systemplaysakeyroleintheformationofseverepancytopenia.Tofurtherconfirmtheabovehypothesis,Tcellsfrom8patientswithAAweresystematicallystudiedfortheirFasL'sdistributionpattern,releasingmannerandproapoptoticactivity,comparedwithnormalrestingTcellsandartificiallyactivatedTcellblasts.TheresultsdemonstratedthatAATcellsabnormallyexpressedlowlevelsofmembrane-boundFasLandcontainedhighlevelsofintracellularFasLwhichcouldbetriggeredtoreleasebyhigh-dosephytohemagglutinin(PHA)pulse-stimulation.ThesupernatantsfromthePHA-stimulatedAATcellshadapparentcytotoxicityagainstFasL-sensitiveJurkatcells,whichcouldbesignificantlyinhibitedbymonoclonalantibodyagainstFasLinadose-dependentmanner,ornearlycompletelyabrogatedbyultracentrifugation.TheabovephenomenaalsoappearedonartificiallyactivatedTcellblasts,butthiswasnotthecaseonnormalrestingTcells.TheseresultsindicatethatAATcellisatypeof'preactivated'Tlymphocyte,characterizedbyoverexpressionofFasL,especiallyintracellularFasLwhichcanbestimulatedtoreleaseinbioavtiveexosomesboundform.Takentogether,ourdataprovidefurtheranddirectevidenceforthehypothesisthatTcellsmightmediatethedestructionofhematopieticprogenitorinAAthroughFas/FasLsystem.