简介:AmethodisdescribedwhichpermitstransmissionelectronmicroscopeofsinglecellstreatedwithHpDpluslasermicroirradiation.Thepreselectedsinglecellthatwasirradiatedbylaserunderlightmicroscopeandfollowedfixation,embeddedandsectioningisexaminedunderelectronmicroscope.Theresultsdemonstratedthatatthelightdoseof1.88ml/μm2notonlytheirradiatednucleolusappearedtransparentregion,buttheotherpartssuchasnon-irradiatedmitochondriaincytoplasmcanalsobedamaged.Whenpartialcytoplasmisirradiatedwiththelightdoseof4.50ml/μm2,thedamagesappearinallcytoplasm,butthereislittlechangeinthenucleus.Theexperimentalresultsalsodemonstratethatcytoplasmismoresensitivethannucleus.ItisthemitochondriaincytoplasmthatareverysensitivetoHpDpluslaser.
简介:单个标志最大可能性的(ML)可译码的时空块代码(SSDC)能完成6/7的最大的标志率为多重输入多重产量(MIMO)有五或六的通讯系统由使用率有效的概括坐标播送天线交叉直角的图案(RE-GCIODs)。不幸地,在RE-GCIODs的codeword矩阵有许多零个条目。零个条目导致高peak-to-average力量比率(PAPR)并且也在硬件实现上强加严重限制。在这份报纸,为有五或六的系统播送的MIMO通讯,天线和天线收到天线,新SSDC被建议。由联合Alamouti代码和直角的时空块代码(OSTBC),象RE-GCIODs一样的理想的性质能被完成并且被导出,包括直到6/7,完整的差异和单个标志的MLdecodability的最大的标志率。而且由在codeword矩阵减少零个条目的数字,我们的建议代码的peak-to-average力量比率(PAPR)比RE-GCIODs低。当在平均力量限制下面执行几乎一样时,模拟结果证明建议代码在山峰力量限制下面超过RE-GCIODs。
简介:UsingsingleDopplerweatherradarechoinformation,thispaperpresentsatechniqueforrecognizingtwo-di-mensionalflowfieldstructureoftheseverestormandestimatingthedivergence,thevorticity,andtheintensityofwindshearline,andgivessomeexamples.
简介:Beingdirectedagainettwokinksofnoiseinopticalfibersensors,asim-pleandeffectivemethodofautomaticcompensationforopticalfibersensorsispresented.Notonlytheunstabilityeffectoflightsource,butalsozerodriftofphotoelectronicde-vices,canbeeliminatedorenormouslyrestranedwiththeaidofthismethod.Inanotherway,byusingsingle-chipmrcrocomputer,theopticalfibersensorsystemfabricatediscaonnetedtoacopmuternetworkstorealizeanautomaticcompensation.
简介:Solidstatenanoporesornanochannelspreparedinpolymer[1;2]andsemiconductorfilms[3]haveshowninterestingtransportphenomena,becauseoftheirdiametersatthenanoscaleandpositiveornegativechargesontheirwalls.Grapheneisanidealmaterialfordevelopingsolidstatenanoporesnotonlyduetoitsatomicscalethickness,highmechanicalstrengthandchemicalstabilitiesbutalsobecauseoftheimpermeabilityofthepristinesinglelayergraphenetoallatomsandmoleculesexceptprotons[4].AsthesingleGraphene/PET(G/PET)nanoporeistheelementarybuildingblockfornanoporousmembrane,theunderstandingandcontrolofitsindividualionictransportpropertiesarealsocrucialinproteinseparation,waterdesalination,andbio-moleculedetectionusingarraysofidenticalnanopores.Here,thesingleG/PETnanoporewassuccessfullypreparedbyusingionirradiationtechnologyandasymmetricetchingmethod[5]andthecorrespondingionictransportpropertieswereinvestigatedindetail.
简介:一个方向联系了polarizer(DRP)在一个激光洞被使用消除空间洞在双向嗯做纤维戒指激光烧获得媒介。单个纵的模式的稳定的操作与可比较的紧张被完成为顺时针方向并且逆时针方向方向。在噪音上的30dB的一个敲击信号被观察。用作一个回转仪的这激光被表明,在敲击频率移动和洞旋转率之间的一种好线性关系被获得。CLC数字TN253
简介:在这份报纸,用在土中的轴承和频率大小的联合集合的一个新被动修改重申的扩大Kalman过滤器(MIEKF)集中了惯性(ECI)坐标被建议。MIEKF的一个新测量更改方程被修改高斯牛顿重复的客观功能导出。一个新获得方程和重复结束标准被使用最大的可能性的估计的性质获得。接近的秒顺序线性化州的繁殖方程,州的转移的Jacobian矩阵和测量方程在卫星被导出二身体的运动。MIEKF,重申的扩大Kalman过滤器(IEKF)和扩大Kalman过滤器(EKF)的追踪的表演从STK8.1通过模仿的数据经由蒙特卡罗模拟被比较。模拟结果显示建议MIEKF是可能的消极地由一颗高地球轨道卫星追踪低地球通报轨道卫星,并且更高让比IEKF和EKF追踪精确。
简介:Weproposeathree-partyschemeforquantuminformationsplitting(QIS)ofanarbitrarysingle-photonpolarizationstatebasedonweakcross-Kerrnonlinearitycombinedwithlinearopticselementssuchaspolarizationbeamsplitters(PBSs)andhalfwaveplates(HWPs).Theschemeisgeneralizedtothearbitrary-partycase.Withthehelpofquantumnondemolition(QND)measurements,ourschemescanbeaccomplishedinanalmostdeterministicway.Thetwoschemesarefeasiblewiththecurrenttechnology.
简介:摘要:储粮安全状态受多种环境因素的影响,主要影响为粮堆内微生物和储粮害虫活动引起的粮温粮湿的增高。因为浅圆仓粮堆体积大,粮堆深度大。出现粮情的粮食对于整仓来说是局部性的,所以多采用单管风机局部机械通风处理。因为仓内属于粉尘防爆10区,单管风机重量又比较沉搬运困难,所以单管风机机械通风方式改造有重要意义。在降低了危害风险的同时又节省了人力财力的消耗。
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简介:Effectofstackingstructureofsingle-walledcarbonnanotubes(SWCNTs)onitsperformanceaselectrodeofsupercapacitorwasinvestigatedinthepresentwork.ConsideringSWCNTseasilyformedbundlesduetostrongvandeWaalsattractionbetweentubes,weproposedfirstdispersionofSWCNTsbyionicliquids(ILs)of1-ethyl-3-methylimidazoliumtetrafluoroborate(EMIMBF4),followedbyfabricationofbuckypaperbycompression.ThedebundlingeffectofILsonSWCNTsincreasedtheinterfacebetweenelectrodeandelectrolyte,decreasedelectricalresistance,and,consequently,increasedperformanceofthesupercapacitor.SinceILs,usedtodisperseSWCNTs,alsofunctionedaselectrolyteinsupercapacitor,ourmethodisasimplewaytopreparebuckypaperelectrodewithhighperformance.
简介:ThepreparationoftwotypesofmolecularsievesAlPO4-11andMAPO-11isreported.Theparticlesizeofthelatterishundredsofmicrons,about10timeslargerthanthatoftheformer.TheXRD,IRandDTAspectrahavedemonstratedthatmagnesiumhasbeenintroducedintotheframeworkofAlPO4-11.ThesuccessfulpreparationoflargesinglecrystalofMAPO-11willopenupanewareaforthepreparationoflargemolecularsievescrystalsinthefuture.ThelargeMAPO-11crystalcompoundisapromisinghostforthehost-guestassemblyofcompositematerials.
简介:Ionization-inducedelectroninjectioninlaserwakefieldaccelerators,whichwasrecentlyproposedtolowerthelaserintensitythresholdforelectrontrappingintothewakewave,hasthedrawbackofgeneratingelectronbeamswithlargeandcontinuousenergyspreads,severelylimitingtheirfutureapplications.Complextargetdesignsbasedonseparatingtheelectrontrappingandaccelerationstageswereproposedastheonlywayforgettingsmallenergy-spreadelectronbeams.Here,basedontheself-truncatedionization-injectionconceptwhichrequirestheuseofunmatchedlaser–plasmaparametersandbyusingtensofTWlaserpulsesfocusedontoagasjetofheliummixedwithlowconcentrationsofnitrogen,wedemonstratesingle-stagelaserwakefieldaccelerationofmulti-hundredMeVelectronbuncheswithenergyspreadsofafewpercent.TheexperimentalresultsareverifiedbyPICsimulations.
简介:Analgorithmforintegratingtheconstitutiveequationsinthermalframeworkispresented,inwhichtheplasticdeformationgradientischosenastheintegrationvariable.Comparedwiththeclassicalgorithm,akeyfeatureofthisnewapproachisthatitcandescribethefinitedeformationofcrystalsunderthermalconditions.Theobtainedplasticdeformationgradientcontainsnotonlyplasticdeformationbutalsothermalefects.Thegoverningequationfortheplasticdeformationgradientisobtainedbasedonthermalmultiplicativedecompositionofthetotaldeformationgradient.Animplicitmethodisusedtointegratethisevolutionequationtoensurestability.Singlecrystal1100aluminumisinvestigatedtodemonstratepracticalapplicationsofthemodel.Theefectsofanisotropicproperties,timestep,strainrateandtemperaturearecalculatedusingthisintegrationmodel.