简介:BeforeandaftertheIraqwar,oneofthemostsalientchangesinU.S.politicalanddiplomaticarenaisthedramaticemergenceofneoconservatism.IthasbecomeoneofthemostimportantfactorsthataffectthetendencyofU.S.globalstrategy.
简介:Throughoutthe1990s,theUnitedStatesandtheinternationalorganizationsunderitscontrolvigorouslypushedforneo-
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简介:摘要:随着航空技术的发展,在日常工作中,A320NEO飞机越来越常见,所以它一定有独特的优势。都说A320NEO飞机节油,论文从其和A320CEO飞机的某些参数比较来分析A320NEO飞机的优点以及其节油的原因。
简介:在装载的biaxial下面的液体水晶弹性体(LCE)的thermo-order-mechanical行为在这份报纸被学习。为非线性的有弹性的问题的反的方法被强加拉长到薄矩形的样品的biaxial利用。新古典的有弹性的精力和Landau-deGennesnematic被使用免费精力。在飞机压力假设下面,组成的方程被导出。由于装载的强加的biaxial导致的液体晶体分子的可能的重取向,装载轴将有最大的有效主要紧张的非线性的压力紧张关系能有不同表情取决于的在里面飞机。并且免费精力是多好非凸的潜在的功能。是由一些典型装载路径出现,LCE样品将展出各向异性的非线性的有弹性的行为,只要装载没导致液体水晶分子的重取向。当这确实发生了时,压力跳能由于输稳定性为死了的装载发生。
简介:Tenrepresentativelimestonesamples[sixfromWangshanFormation(WL)andtheotherfourfromGouhouFormation(GL)]werecollectedfromoutcropsofthenorthernAnhuiProvince,andREEconcentrationsinlimestoneweremeasuredbyICP-MS.ThedepositionalenvironmentandsourceoftheREEwereanalyzed,andtheresultsimplysthatthetotalREEofsamplesarelowcomparedwiththerecentmarinesediments,whichrangefrom9.61to54.18mg/kgandanaverageof22.93mg/kg.ThePAAS-normalizedREE+Ypatternsoflimestonearecharacterizedby(1)lightREEdepletioninWLandenrichmentinGLwiththevaluesof(Nd/Yb)SNrangingform0.65to0.91and1.12to1.46,respectively;(2)lightnegativeCeanomaly(0.85–1.02)andpositiveLaanomaly(0.92–1.27);and(3)bothEu(0.91–1.23)andY(1.42–2.38)expressinglightpositiveanomaly.Thecharacterindicatedthatthedepositionalenvironmentwasoxygenated,withinfectionbythehydrothermalactivityandcontaminationofdetritus.
简介:摘要:本文详细分析了空客A320NEO飞机前后货舱门在关闭时出现卡顿及黄电动泵间断性关闭的故障。尽管前后货舱门的操控系统相互独立,但故障期间均表现出类似症状。调查发现,前货舱门仍可操作,表明延时继电器6MJ及其之前的电控逻辑正常。工程师更换继电器6MJ未能解决问题,初步判断故障可能出现在电动泵的供电或保护电路中。鉴于人工打泵正常,排除了泵本身的故障。后续对电动泵插头进行电压和物理检查,结果显示插头电压正常且无缩钉现象,进一步确认问题出在保护电路。测试发现相位不平衡检测器3808GX指示灯亮起,最终更换电流互感器3807GX后,故障得以解决。本文详细记录了故障排查过程,分析了各部件的功能和相互关系,为类似故障的快速诊断和修复提供了参考。
简介:Objective:ToinvestigatetheexpressionofHPV16mRNAinnormalhumankeratinocytestransfectedwithpSV2-neo/16.Firsthumankeratinocyteswereculturedintheserum-freemediumM154.Second,theplasmidpSV2-neo/16wastransfectedintothehumankeratinocytesusingatransfectingreagent.Third,RT-PCRandSouthernBlottingwereusedtodetecttheexpressionofHPV16mRNAandDNAinthetransfectedkeratinocytes,respectively.Results:TheexpressionofHPV16mRNAwassuccessfullyamplifiedandan110bpwasditectedbyRT-PCR.A7.9kbfragmentwasconfirmedinthetransfectedkeratinocytesbySouthernBlotanalysis.Conclusion:HPV16mRNAandDNAweresuccessfullydetectedinthehumankeratinocytes.