简介:TheprogressofresearchgoingoninGroupofEnergyMaterials(GEM),MaterialResearchCenter,in2014isinthefollowingthreeaspects.1.FacilitydevelopmentInordertopushforwardourstudyonfusionreactormaterials,weupgradedtheirradiationterminal(128#)ofthesectorfocusedcyclotron(SFC)atHIRFL,bydevelopinganewspecimenstagespecificforirradiationwithlow-fluencescatteredions.Sofartheterminaliscapableofirradiationtobothverylowfluences(106ions/cm2)andveryhighfluences(typically1016ions/cm2)forvariousmaterials.SpecimentemperaturecanbereadilycontrolledusingtheL-N2coolingstageorthethehigh-Tstage(upto600oC).Ourrecentinvestigationwithtransmissionelectronmicroscopy(TEM)ofthedefectsproducedbyhigh-energyNeionsinsteelspecimensprovidesaclearevidencethatdefectswereproduceduniformlyalongthedepthinthespecimen,indicatingthattheenergydegraderoftheterminalworkseffectivelytodispersetheionenergyinawiderange.AphotooftheterminaltogetherwithaSRIMestimateofdepthprofilesofdamageinan8%Crreducedactivationferritic/martensiticsteel(RAFMS)isshowninFig.1.
简介:摘要目的对急性心肌梗死(AMI)患者临床院前急救特点分析。方法通过对急诊科出诊院前急救的23例,急性心肌梗死患者的发病情况、急救反应时间、急救方法、入院后治疗情况、并发症及病死率等临床特点进行分析。结果院前8例心跳骤停者5例抢救无效死亡,余15例均经急救处理后生命体征平稳及时转送心血管重症监护病房。经早期溶栓治疗,9例到医院后经常规急救处理,及时行急诊PTCA手术。除1例住院期间因并发反复室颤抢救无效死亡,余14例好转或治愈出院。结论与转运时间延长短相关,院前急救可明显缩短溶栓开始时间,提高梗死冠脉的再通率,降低AMI患者并发症、死亡率的发生,对AMI患者实施院前急救十分必要。