简介：(DVR)直接体积显示是允许用户有效地探索并且学习容量的数据集的一种强大的可视化技术。不同透明性设置能灵活地被分到不同结构以便一些珍贵信息能在直接体积被揭示显示的图象(DVRI)。然而，因为他们不知道任何重要信息是否从DVRI的透明区域是失踪的，经常，一些风险总是是的感觉与DVR联系了的最终用户。在这份报纸，我们调查怎么半自动地产生一套DVRI并且也，能揭示信息的一张动画在原来的DVRI并且同时错过了满足象连贯那样的一些图象质量标准。一个完全的框架被开发处理与产生和可见性知道的DVRI和动画的优秀评估有关的各种各样的问题。我们的技术能减少直接使用体积显示的风险并且因此在显示系统的体积增加用户的信心。

简介：Theobjectiveofthisworkistoprovidedecision-makingprocesseswithanupdated/realpictureofthemobileresourcesinindustrialenvironmentsthroughaconstantfeedbackofinformation.Thecombinationofidentificationtechnologiesandwirelesssensornetworks(WSN)isproposedasakeydevelopmenttoguaranteeanaccurateandtimelysupplyofonlineinformationregardingthelocalizationandtrackingofthemobilewirelessdevices.Thisapproachusesacooperativeanddistributedlocalizationsystem,calledZigID,whichisaWSNbasedonaZigbeenetworkwithradiofrequencyidentification(RFID)activetagsasendnodes.TheWSNcanrecovernotonlytheIDinformationstoredatthetagsattachedtomobileresources,butalsoanyotherusefuldatacapturedbyspecificsensorsforacceleration,temperature,humidityandfuelstatus.ThispaperalsoshowsthedevelopmentofZigID,includingdevicesandinformationflows,aswellasitsimplementationingroundhandlingoperationsattheCiudadRealCentralAirport,Spain.

简介：Thestudiesontheeffectofatmosphericaerosolonclimateandenvironmentarehotissuesinthecurrentcircleofinternationalscienceandtechnology.InrecentyearsthepollutionofaerosolisgettingworseandworseoverthePearlRiverDelta.Thecloudsofaerosoloccurallyearround,withheavypollutionarealocatedatthewesternsideatthemouthofPearlRiver.ThehazeweathermainlyoccursfromOctobertoAprilnextyear,resultinginvisibilitydeterioration.Fromthebeginningof1980s,visibilitydramaticallydeteriorated,obviouslyincreasinghazeweather,inwhichtherearethreebigfluctuations,showingtheperiodsofpollutionsofdust,sulphateanddust,fineparticlefromphotochemicalprocessandsulphateanddustaccompanyingwiththedevelopmentofeconomyrespectively.Thelong-termtendencyofvisibilitycausedbyfogandlightfogdoesnotshowatendencyduetohumanactivitiesoreconomicdevelopment,whichmainlyshowstheinterannualandinterdecadalvariationofclimate.ThedeteriorationofvisibilityhascloserelationtothefineparticlesoverPearlRiverDelta,withhalfofPM10overpassthelimitedvaluesetbynationalsecondgradedstandard(150μgm-3),meanwhile,allvaluesofPM2.5overpasstheday-meanlimitedvalueofAmericannationalstandard(65μgm-3),especiallyfromOctobertoJanuarynextyear,monthlymeanvaluesofPM2.5almostreachtwotimesofstandardvalue,indicatingthefineparticleconcentrationisveryhigh.TheratioofPM2.5toPM10isalsoveryhigh,reaching58%-77%,higherespeciallyindryseasonthaninrainyseason.ThusitisthefineparticlepollutioninaerosolpollutionoverthePearlRiverDelta.Comparedwiththedataof15yearsago,theratiooffineparticletoaerosolhasobviouslyincreased.

简介：

简介：Haze-to-fogtransformationduringalonglasting,lowvisibilityepisodewasexaminedusingtheobservationsfromacomprehensivefieldcampaignconductedinNanjing,Chinaduring4-9December2013.Inthisepisode,hazewastransformedintofogandthefoglastedfordozensofhours.Theimpactsofmeteorologicalfactorssuchaswind,temperature（T）andrelativehumidity（RH）onhaze,transitionandfogduringthisepisodewereinvestigated.Resultsrevealedsignificantdifferencesbetweenhazeandfogdays,duetotheirdifferentformationmechanisms.Comparisonwasmadeforboundary-layerconditionsduringhazydays,haze-to-fogdaysandfoggydays.DistributionsofwindspeedandwinddirectionaswellassynopticweatherconditionsaroundNanjinghaddeterminativeimpactsontheoccurrencesandcharacteristicsofhazeandfog.WeakenedsoutherlywindinsouthernNanjingresultedinhighconcentrationofpollutants,andhazeeventsoccurredfrequentlyduringthestudyperiod.Thewindspeedwaslessthan1ms-1inthehazeevent,whichresultedinastableatmosphericconditionandweakdispersionofthepollutants.Theheightofthetemperatureinversionwasabout400mduringtheperiod.Theinversionintensitywasweakandthetemperature-differencewas4℃km-1orlessinhaze,whiletheinversionwasstronger,andtemperature-differencewasabout6℃km-1,approachingtheinversionlayerintensityinthefogevent.HazeeventisstronglyinfluencedbyambientRH.RHvaluesincreased,whichresultedinhazedaysevidentlyincreased,suggestingthatanincreasingfractionofhazeeventsbecausedbyhygroscopicgrowthofaerosols,ratherthansimplybyhighaerosolloading.WhenRHwasabove90%,hazeaerosolsstartedtobetransformedfromhazetofog.Thisstudycallsformoreeffortstocontrolemissionstopreventhazeeventsintheregion.

简介：

简介：以便学习在非球形的大气的控告的粒子和卫星地面量连接变细之间的关系。在粒子集中，相等的半径，控告的粒子的费用密度，变细系数和卫星地面量连接的纠纷之中的关系能根据扑灭十字节首先被建立并且光谱非球形的大气的控告的粒子的分发功能。在大气的可见性和卫星地面量连接的通讯忠实之间的量的关系那时被分析。模拟结果证明椭圆体，对卫星地面量连接的变细的大气的控告的粒子影响日益增多地增加的Chebyshev。当相等的粒子半径是0.2m和粒子时，集中是卫星地面量的变细系数和纠纷连接的50g/m3,是9.21dB/km，11.46dB/km并且0.453，0.421分别地；当大气的可见性从8把km归结为2km时，卫星地面量连接的通讯忠实从0.52～0.08减少。非球形的大气的控告的粒子和大气的可见性在卫星地面量连接通讯系统的性能上极大地影响，这被显示出。因此，在空气根据空气的可见性值和控告的粒子的形状调整量卫星通讯系统的参数改进卫星地面量连接的可靠性是必要的。