简介:Thefollowingarticlesetsforththeconceptualstrategicframeworkthatguidedtheorganizationandplanningoftherecent,highlysuccessful32ndInternationalGeologicalCongress,heldinFlorence,Italy,August20-28,2004.ThisvisionofthedesiredfuturestateoftheEarthsciencesispresentedhereinordertoextendsignificantlyitsdistributionbeyondthe7000+Congressparticipants.Earthscientistsaroundthewormareencouragedtoconsider,digest,anddiscussitsobservations,conclusions,andrecommendationstoimprovetherelevanceandsharpenthefocusofcurrentandfutureactivitiesintheEarthsciences.[OriginallypublishedinthedailynewspaperoftheCongress,""32ndIGCINFORMS,""No.9,August28,2004,anddistributedtoCongressparticipants.AvailablealsoonthelUGSwebsite.]
简介:TheglobalorderwassetinplacefollowingtheendoftheSecondWorldWarbyaconsortiumofwesterncountriesheadedbytheU.S..Sincethen,themajorwesterncountrieshavestrivedtomaintaintheirlongdominanceinglobalpoliticsandeconomics.Withtheriseofnationalistmovements,formercoloniesgainedtheirindependence,andmanydevelopingcountriesjoinedtheUN.Inrecentyears,theeconomiesofthe
简介:Arobustsystemforbacklitkeyboardinspectionisrevealed.Thebacklitkeyboardnotonlyhaschangeablediversecolorsbutalsohasthelasermarkingkeys.Thekeysonthekeyboardcanbedividedintoregionsoffunctionkeys,normalkeys,andnumberkeys.However,theremighthavesometypesofdefects:incorrectilluminatingarea,non-uniformilluminationofspecifiedinspectionregion(IR),andincorrectluminanceandintensityofindividualkey.Sincetheilluminationfeaturesofbacklitkeyboardaretoocomplextoinspectforhumaninspectorintheproductionline,anauto-matedinspectionsystemforthebacklitkeyboardisproposedinthispaper.Thesystemwasdesignedintotheoperationmoduleandinspectionmodule.Asetofimageprocessingmethodsweredevelopedforthesedefectsinspection.Someexperimentalresultsdemonstratetherobustnessandeffectivenessoftheproposedsystem.
简介:CommondisplayssuchasCRTorLCDscreenshavelimitedcapabilitiesindisplayingmostcolorspectracorrectly.Themaindisadvantageofthesedevicesisthattheyworkwiththreeprimariesandthecolorsdisplayedarethemixtureofthesethreecolours.Consequentlythesedevicescanbeconfusingintestinghumancoloridentification,becausethespectraldistributionofthecolorsdisplayedisthecombinedspectrumofthethreeprimaries.Wehavedevelopedanewinstrumentforspectrallycorrectcolorvisionmeasurement.Thisinstrumentuseslightemittingdiodes(LEDs)andiscapableofproducingallspectraofperceivablecolors,thuswithappropriatetestmethodsthisinstrumentcanbeareliableandusefultoolintestinghumancolorvisionandinverifyingcolorvisioncorrection.
简介:Lagonda致力于成为世上首个零排放豪华车品牌。它将充分利用最新的电动和自动驾驶技术。它将展示豪华汽车如何与现代设计融为一体、相辅相成。阿斯顿·马丁在这届日内瓦车展上带来了Lagonda的概念车,预计正式量产将于2021年开启。这款概念车上的设计语言将出现在Lagonda的未来车型上。这辆车比一般的加长版轿车更短、更低,但空间利用率很高,可以坐得下四个成人,且有足
简介:smartVisionEQfortwo提供了新型都市汽车的雏形,具有个性、灵活性、高效性.这款全自动概念车可以自动去指定地点接送乘客,具备多个自定义选项.smartVisionEQfortwo也贯彻了CASE战略,即互联性(Connected)、自动驾驶(Autonomous)、灵活使用(分享和服务,Shared&Services)、电动系统(Electric).奔驰预计会在2022前推出10款全新的电动车并进行量产,涵盖了从最小型的smart到最大型的SUV.
简介:Weldpoolcontainssignificantinformationabouttheweldingprocess.TheweldpoolimagesofMAGweldingaredetectedbyLaserStrobesystem.AnalgorithmforextractingweldpooledgeisproposedaccordingtothecharacteristicsofMAGweldpoolimages.Themaximumweldpoollengthandwidtharecalculated.ThemeasurementdatacanbeusedtoverifytheresultsofweldingprocesssimulationandtoprovideagoodfoundationforautomaticcontrolofMAGweldingprocess.
简介:VisionE是斯柯达第一款全电动概念车.它有着充裕的空间、先进的辅助系统和丰富的互联服务.它还采用了便捷的充电技术、出色的燃油效率.除了插电混动汽车,到2025年前斯柯达还将推出五款全新电动汽车.到那时,斯柯达售出的汽车中每四辆将有一辆是混动或纯电动汽车,而且所有的车款都会推出相应的全电动车.
简介:Inthispaper,aformationcontrolalgorithmandanobstacleavoidancecontrolalgorithmformobilerobotsaredevelopedbasedonarelativemotionsensorysystemsuchasapan/tiltcameravisionsystem,withouttheneedforglobalsensingandcommunicationbetweenrobots.Thisisachievedbyemployingthevelocityvariation,insteadofactualvelocities,asthecontrolinputs.Simulationandexperimentalresultshavedemonstratedtheeffectivenessoftheproposedcontrolmethods.
简介:Binocularcomputervisionisbasedonbionics,afterthecalibrationthroughthecameraheadbydouble-exposureimagesynchronization,accesstothecalculationoftwo-dimensionalimagepixelsofthethree-dimensionaldepthinformation.Inthispaper,afastandrobuststereovisionalgorithmisdescribedtoperformin-vehicleobstaclesdetectionandcharacterization.Thestereoalgorithmwhichprovidesasuitablerepresentationofthegeometriccontentoftheroadsceneisdescribed,andanin-vehicleembeddedsystemispresented.Wepresentthewayinwhichthealgorithmisused,andthenreportexperimentsonrealsituationswhichshowthatoursolutionisaccurate,reliableandefficient.Inparticular,bothprocessesarefast,generic,robusttonoiseandbadconditions,andworkevenwithpartialocclusion.
简介:Thetraditionaleyesensitivityfunctionbasedonphotopicvisionisnotapplicableinthemesopicvisionstate.Themesopicvisionisstudiedbyusingthephotopicandscotopicvisionstatesensitivityfunctions.Andthemodelwhichlinksthemesopicsensitivitywiththephotopicandscotopicstatesisbuilt.Basedonthemodel,theluminousefficacyofmesopicvisioniscalculatedandappliedtothespectrumdistributionofLEDlightsources.TheresultsshowthattheluminousefficacyofacommercialYAGphosphorconvertedwhiteLEDisupto172.7lm/Watmesopicvision,whichis67.2%higherthanthatofphotopicvisionstate.WealsoconcludethattheoptimalspectralpowerdistributionoftheLEDwillgreatlyincreasethemesopicluminousefficacy.
简介:这是雷诺对10年后的F1赛车的构想,更加的安全,更加的诱人,同时也更加的环保.到202年,赛事竞争更加的激烈,功率重量比达到了极致,人类的体能和技术是胜负的唯一关键,到那时赛车手可以像顶尖的运动员一样,为粉丝带来更多的愉悦.到那时,粉丝可以跟赛车手有更新近的联系,不管是在赛道上还是在电视上观看比赛.
简介:Inthetest-fieldcalibration,multi-azimuthstereoimagepairsareproducedoftheoutdoorlargecontrol-fieldbythestereo-visionsystemundercali-bration.Whileintheanalyticalprocessing,therelationshipbetweenimagepairsisadoptedasaconstraintcondition,whichensuresthestabilityandqualityofthecalibrationresults.Thispaperintroducesthedeductionprocessoftheconstraintconditions.