简介:Adischarge-produced-plasma(DPP)sourceemittingintheextremeultraviolet(EUV)spectralregionisrunningattheENEAFrascatiResearchCentre.Theplasmaisgeneratedinlow-pressurexenongasandefficientlyemits100-nsdurationradiationpulsesinthe10–20-nmwavelengthrange,withanenergyof20mJ/shot/srata10-Hzrepetitionrate.Thecomplexdischargeevolutionisconstantlyexaminedandcontrolledwithelectricalmeasurements,whileansgatedCCDcameraallowedobservationofthedischargedevelopmentinthevisible,detectionoftime-resolvedplasmacolumnpinching,andoptimizationofthepre-ionizationtiming.AccuratelycalibratedZr-filteredPINdiodesareusedtomonitorthetemporalbehaviourandenergyemissionoftheEUVpulses,whilethecalibrationofadosimetricfilmallowsquantitativeimagingoftheemittedradiation.Thiscomprehensiveplasmadiagnosticshasdemonstrateditseffectivenessinsuitablyadjustingthesourceconfigurationforseveralapplications,suchasexposuresofphotonicmaterialsandinnovativephotoresists.
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简介:WhenthesundispersesitsbrilliantraysoverthePotalaPalaceonaniceday,thewholecityofLhasatakesonanairofwarmthandharmony.IntheirancientTibetanrobesidlyturningtheirManiwheels,elderlypeopleeithergoforawalkontheBarkorStreetorhavearestatasweetteashop.Touristscominginfromallovertheworldoftenliketo
简介:Inthispaper,weinvestigatesomedelayGronwalltypeinequalitiesontimescalesbyusingGronwall’sinequality.Ourresultsunifyandextendsomedelayintegralinequalitiesandtheircorrespondingdiscreteanalogues.Theinequalitiesgivenherecanbeusedashandytoolsinthequalitativetheoryofcertainclassesofdelaydynamicequationsontimescales.
简介:聚类的地震指在时空与对方一起仔细发生的地震事件。因为他们的重叠波形记录使拣第一到达困难,聚类地震的hypocenters不能被traveltime地点方法精确地决定。这里,我们使用一个反向时间的成像(RTI)方法印射聚类地震。拿直接使用波形的优点,RTI方法是有能力的印射单个小地震或浓密地散布的一些在2-D下面聚类地震地震数组。在3-D情况中,RTI方法成功地被使用从一套稀疏地分布式的表面车站用数据定位长偏移量的马甲地震。为一样的获得几何学,然而,在印射的RTI相遇挑战浓密地散布了聚类地震。当改进印射聚类地震与照明角度的更宽的范围要求一个更稠密的接收装置网络,是明显的时,与合成数据验证RTI方法的实际分辨率是必要的。在我们在三个峡区域的学习区域,我们3-D情况的测试建议在线性排列亚数组下面的一些事件有合理分辨率。
简介:AccordingtothedataoftheChineseLongitudinalHealthyLongevitySurvey(CLHLS)andapplyingmethodsofSullivanandmultistatelifetable,thispaperexaminesthetimeexpectancyofcarefordailylivingofChineseelderlyanditsproportionintheirelderlylife.Theresultsfindthatthereexistsasignificantgendergapoftheexpectancy,whichthemaleat65averagelyareexpectedtohavefourtofivecareyearswhilethefemaleat65averagelyareexpectedtohaveseventoeightcareyears.Thetimeexpectancyforslightcareofdailylivingislongerthanthatforsevercare.Additionally,thereisnosignificantdifferencebetweenurbanelderlyandruralelderly.However,asageincreases,thetimeexpectancyforslightcaregoesdownwhilethatforsevercarestabilitiesataconstantatdifferentages.Thetimeexpectancyfordifferenttypesofcareanditsproportionintherestoflifearesignificantlyvarious.Thestudypointsoutthattheestablishmentandimprovementofcareinsurancesystemandtheelderlycareserviceareverynecessary.
简介:数据存取延期成为了高端计算系统的突出的性能瓶颈。在系统设计减少数据存取延期的关键是减少数据货摊时间。存储器地区和并发是影响现代存储器系统的性能的二个必要因素。因为全面存储器系统性能上的存储器并发的影响很好没被理解,然而,存在在利用数据存取并发上在很少减少数据货摊时间学习焦点。在这研究,一双新奇数据货摊时间模型,为地区和并发的联合努力的L-C模型和为数据上的纯失误的效果的下午模型阻止时间,被介绍。模型提供数据存取延期的新理解并且为表演优化提供新方向。基于这些新模型,先进缓存优化的一张概括表格被介绍。当时,被数据并发贡献了,把38个条目仅仅,21个条目由数据地区作出贡献,它显示出数据并发的值。在这研究介绍的L-C和下午模型和他们的联系结果和机会为数据中央的建筑学和算法现代计算系统设计的未来重要、必要。
简介:自相关函数并且有非线性的推迟时间的反馈的一个自治随机的系统跨关联被使用随机的模拟方法调查。在一个自治随机的系统的关联上二次的推迟时间的反馈和立方的推迟时间的反馈的角色之间有突出的差别。在二次的推迟时间的反馈下面,非线性的时间延期没能改进自治随机的系统的吵闹的状态,自相关单调地减少到零,并且跨关联的增加单调地到零与腐烂时间。在立方的推迟时间的反馈下面,非线性的时间延期能改进自治随机的系统的吵闹的状态;自相关和跨关联的表演期刊摆动和变细,最后与腐烂时间趋于到零。比较系统在之间的关联与非线性的推迟时间的反馈和线性推迟时间的反馈,我们发现非线性的推迟时间的反馈降低自治随机的系统的关联力量。
简介:Complexurbansceneryisgenerallycomposedofgiganticamountofdetailedbuildings,efficientrepresentationandrenderingareessentialforitsvisualization.Wepresentanacceleratingmethodforurbanvisualization.Ourapproachcanoptimizetheorganizationofmodelsinaccordancewiththequadtreebasedterrain,whichmakestheparallelizationeasier.Throughminimizingthedrawcallwithinonerenderingprocess,ourapproachcanreducethetimecostofeachframeandimprovetheframerategreatly.Hereby,oursystemcanhandlelarge-scaledetailedmodelswithhighdiversityandalsocanaffordtheabilitytoadjusttherenderingstrategyautomaticallyaccordingtothestateofthehardware.
简介:Simulationandrenderingoflarge-scalenaturalenvironments,especiallytheocean,hasalwaysbeenoneofthehotissuesincomputergraphics,whichcanproviderealismforvariousapplicationssuchascomputergame,movieandmilitaryusage.Simulationofoceanenvironmentisoftenlackofrealismforreal-timeapplicationduetoitscomplexityofdynamicwaves.Inthispaper,amethodbasedonFFTWavemodelisproposedtosolvethisproblem,whichcanalsosimulatetheoceanopticpropertywithatmospherescattering.Furthermore,ourmethodhasalotofadvantagesincludingglobaloceandatasetsupport,real-time,dynamicreflectionofocean,thefoamonthewave,smoothtransitionfromdeepoceantoseacoast,etc.Theexperimentalresultsdemonstratetherealismandeffectivenessofourapproach.
简介:ThispaperextendstheSPHmethodtogassimulation.TheSPH(SmoothedParticlesHydrodynamics)methodisthemostpopularmethodofflowsimulation,whichiswidelyusedinlarge-scaleliquidsimulation.However,itisnotfoundtoapplytogassimulation,sincethosemethodsbasedonSPHcan’tbeusedinreal-timesimulationduetotheirenormousparticlesandhugecomputation.ThispaperproposesamethodforgassimulationbasedonSPHwithasmallnumberofparticles.Firstly,themethodcomputesthepositionanddensityofeachparticleineachpoint-in-time,andoutlinestheshapeofthesimulatedgasbasedonthoseparticles.Secondlythemethodusesthegridtechniquetorefinetheshapewiththediffusionofparticle’sdensityunderthecontrolofgrid,andgetmorelifelikesimulationresult.Eachgridwillbeassigneddensityaccordingtotheparticlesinit.Thedensitydeterminesthefinalappearanceofthegrid.Forensuringthenaturaltransitionofthecolorbetweenadjacentgrids,wegiveadiffuseprocessofdensitybetweenthesegridsandassignappropriatevaluestovertexesofthesegrids.Theexperimentalresultsshowthattheproposedmethodcangivebettergassimulationandmeettherequestofreal-time.
简介:在飞机坠毁,轮船碰撞,和另外的事故以后产生的负担可以破坏很大的漂浮的结构(VLFS)并且创造另外的接头负担。在这研究,负担被考虑建立的轮船碰撞和波浪的联合效果打手势为多身体VLFS的微分方程。一个时间领域计算方法被建议在波浪计算VLFS的接头负担。LonguetHiggins模特儿被雇用模仿随机的波浪负担。液体力量和水动力学系数用DNVSesam软件被获得。运动当频率域水动力学系数被变换成运动的存储器函数时,微分方程被使用时间域方法计算时间域的微分方程。由于波浪和影响负担的联合行动,高周波的摆动在接头负担的时间历史曲线被观察。在0的波浪方向?
简介:Theterahertz(THz)regionoftheelectromagneticspectrum,spanningtherangebetween0.1THzand10THz,hasexperiencedarenaissanceduetotechnologicaldevelopmentsinsourcesanddetectors.Theterahertztimedomainspectroscopy(THz-TDS)systemisbyfaroneofthemostimportantmethodstogenerateanddetecttheTHzwave.Inphysics,THz-TDSisaspectroscopictechniqueinwhichthepropertiesofamaterialareprobedwithshort