简介：Inthispaperthemodelling,analysisandoptimizationofmillimeterwaveoscillatorsareinvestigatedbyusingtheafrequency-domainharmonicbalancetechnique(FDHB),wheretheexternal-circuitimpedanceslookingoutsidefromtheactivedevicearecalculatedwithacombinedtechniqueofmodesexpansion,Galerkin,andcollocationmethods.Theoptimizationresultsareinagreementwiththeexperimentalones,whichshowthereliabilityofthepresentedmodelandoptimization.

简介：PIM-SM(ProtocolIndependentMulticast-SparseMode)isamainmulticastroutingpro-tocolintheIPv6(InternetProtocolversion6).Itcanuseeitherasharedtreeorashortestpathtreetodeliverdatapackets,consequentlythemulticastIPlookupenginerequires,insomecases,twosearchestogetacorrectlookupresultaccordingtoitsmulticastforwardingrule,anditmayresultinanewrequirementofdoublingthelookupspeedofthelookupengine.TheordinarymethodtosatisfythisrequirementinTCAM(TernaryContentAddressableMemory)basedlookupenginesistoexploitparallelismamongmultipleTCAMs.However,traditionalparallelmethodsalwaysinducemorere-sourcesandhigherdesigndifficulty.Weproposeinthispaperanovelapproachtosolvethisproblem.ByarrangingmulticastforwardingtableinclasssequenceinTCAMandmakingfulluseoftheintrinsiccharacteristicoftheTCAM,ourapproachcangettherightlookupresultwithjustonesearchandasingleTCAM,whilekeepingthehardwareoflookupengineunchanged.ExperimentalresultshaveshownthattheapproachmakeitpossibletosatisfyforwardingIPv6multicastpacketsatthefulllinkrateof20Gb/swithjustoneTCAMwiththecurrentTCAMchip.

简介：ForanSOI-FPGA(silicon-on-insulatorfieldprogrammablegatearrays)(VS1000)fabricatedwith0.5mSOI-CMOS(silicon-on-insulatorcomplementary-metal-oxide-semiconductor)process,acompleteintegratedplatformofFPGAcomputer-aideddesign(CAD)toolset(VDK)isdeveloped,whichcanconverttheVerilogHDL(hardwaredescriptionlanguage)descriptionintoabitstreamandfinallydownloaditintoanFPGA.ExperimentsandtestingverifythatthisFPGACADworkswellandefficiently.

简介：摘要职业技术教育是以培养应用型、技能型人才为目标。面对企业对具有较高CAD应用技能的复合型专业人才需求量大增，我们需要需要培养和造就大批有创新能力的高素质技能型人才。因此，结合教学，笔者认为CAD教学如何体现室内设计的设计理念和特色，使学生在较短的时间内熟练掌握与专业相关的CAD绘图方法和技巧，是职业院校室内设计专业CAD课程教学必须解决的课题。

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