简介:基于实例分别在VisualBasic、VFP、HTML超文本、以及AUTHORWARE中阐述ActiveX控件的使用方法,充分展示其应用的广泛性与功能的强大性。
简介:探讨在使用MSFlexGrid控件的同时,扩充和完善控件的功能,实现对数据的浏览、编辑、修改和打印的方法。
简介:AsoneofthevictoriousAlliesofWorldWarI,ChinaattendedtheParisPeaceConferencein1919.Toacertainextent,theconferencecanberegardedasthetruebeginningofglobalgovernance.ItwasfollowedbytheestablishmentoftheVersailles-WashingtonSystem,thefirstinternationalpatternwithworldparticipation.Althoughitwasinvolvedin
简介:(4)把一个DataGrid拖进ScrollingGrid控件中,(3)在你的页面上添加一个ScrollingGrid控件,适用于Asp.NET1.1和Asp.NET2.0的环境(升级后的控件)
简介:Inanactivenetwork,userscaninsertcustomizedactivecodesintoactivenodestoexecute.Thusitneedsmoreresourcesthanthoserequiredbyconventionalnetworks,andtheseresourcesmustbeeffectivelymonitoredandmanaged.ManagementpoliciesinexistingOSsaretoocomplicatedtoapplytosimpleactivepackets.Inthispaper,wepresentnewresourcesmanagementpoliciesthataremainlyadopedtomanageCPU,storageandtransmissionbandwidth.Namely,weuseSPFalgorithmtoscheduleandprocessactivepackets,andimportanintervalqueuemethodtoallocatetransmissionbandwidth,andusefeedbackmechanismtocontrolcongestion.Atthesametime,wedesignsomeexperimentsonprototypesystemswithandwithoutresourcesmanagementpoliciesrespectively.Theexperimentsresultsshowthatmanagementpoliciespresentedbyuscaneffectivelymanageresourcesinactivenodesandcanimprovetheperformanceofactivenetworks.
简介:Thetectonicmovementathumanscalehasnotbeenfullyunderstoodyet,especiallyforactivetectonics,althoughitisthebasistostudynaturalhazardsandenvironmentalvariations.Manynationalandinternationalscientificplansrelatedcloselytoactivetectonicsresearchhavebeenmadeinthepasttenyears.Thispaperbrieflysummarizedthebackgroundoftheundertakingofactivetectonicsresearch,itsadvancesandexistingproblems,andthekeypointsinitsfuturestudiesarealsopointedout.TheemergingofnewtechnologiesliketheEarthObservingSystem,DigitalSeismologyandsoonprovidesunusualopportunitiesfortectonicresearch.Itisemphasized,however,thatcarefulanalysesandbuildingupofnewtheoreticalframearesillthekeyproblemsforstudiesofactivetectonics,especiallyforactivetectonicsinChina'scontinent.
简介:Insteadofvision,manynocturnalanimalsusealternativesensesfornavigationandobjectdetectionintheirdarkenvi-ronment.Forthispurpose,weaklyelectricmormyridfishemployactiveelectrolocation,duringwhichtheydischargeaspe-cializedelectricorganintheirtailwhichdischargeselectricalpulses.Eachdischargebuildsupanelectricalfieldaroundthefish,whichissensedbycutaneouselectroreceptororgansthataredistributedovermostofthebodysurfaceofthefish.Nearbyobjectsdistortthiselectricalfieldandcausealocalalterationincurrentflowinthoseelectroreceptorsthatareclosesttotheobject.Byconstantlymonitoringresponsesofitselectroreceptororgans,afishcandetect,localize,andidentifyenvironmentalobjects.Inspiredbytheremarkablecapabilitiesofweaklyelectricfishindetectingandrecognizingobjects,wedesignedtechnicalsensorsystemsthatcansolvesimilarproblemsofremoteobjectsensing.Weappliedtheprinciplesofactiveelectrolocationtotechnicalsystemsbybuildingdevicesthatproduceelectricalcurrentpulsesinaconductingmedium(waterorionizedgases)andsimultaneouslysenselocalcurrentdensity.Dependingonthespecifictaskasensorwasdesignedfordevicescould(i)detectanobject,(ii)localizeitinspace,(iii)determineitsdistance,and(iv)measurepropertiessuchasmaterialproperties,thickness,ormaterialfaults.Oursystemsprovedtoberelativelyinsensitivetoenvironmentaldisturbancessuchasheat,pressure,orturbidity.Theyhaveawiderangeofapplicationsincludingmaterialidentification,qualitycontrol,non-contactdistancemeasurements,medicalapplicationsandmanymore.Despitetheirastonishingcapacities,oursensorsstilllagfarbehindwhatelectricfishareabletoachieveduringactiveelectrolocation.Theunderstandingoftheneuralprinciplesgoverningelectricfishsensoryphysi-ologyandthecorrespondingoptimizationofoursensorstosolvecertaintechnicaltasksthereforeremainongoinggoalsofourresearc
简介:本文主要介绍了VB6.0的WebBrowser控件及利用WebBrowser控件创建Web浏览器,讨论了浏览器编程的方法,实现了IE浏览器的基本功能。