简介：TheConnectFouronlinegameisaninterestinggameofstrategy.《四子棋在线游戏》是一个有趣的智力游戏。HowtoplayConnectFourConnectFourisagridofsevencolumnsandsixrows.Whilethegameissimpletofollowandplay,itcanberatherchallengingtowin.

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简介：Allopticalnetworkbasedonwavelengthdivisionmultiplexingtransmissionsystemwithopticalcrossconnect(OXC)isanessentialapproachforopticalcommumications.CrosstalkintroducedbyOXC(speciallylargescaleone)isakeylimitingfactorforitscapacity.OpticalsignalpassingthroughatypicalOXCisanalyzedinthispaper,followedbydescriptionofthegenerationandeffectofintrabandcrosstalk.ThepowerpenaltiesinducedbyintrabandcrosstalkversusthenumberofmultiplexedwavelengthsMandthenumberofinputfibersNhavebeengivenbynumericalsimulations.TheresultsshowthatthecoherentcrosstalkisthemostcriticallimitationonOXCanddependsmorecloselyonthenumberofmultiplexedwavelengthsMthanthenumberofinputfibersN.Crosstalkissuppressedbydoublyfiltering,fixingoptimumdecision-thresholdandappropriatelychoosingthenumberofmultiplexedwavelengthsM.

简介：随着接入互联网的设备不断增加，搜集个人信息的应用程序越来越多，人们对网络安全的忧虑也随之增加。互联生活以及物联网的出现带来了巨大商机，MachinaResearch预计这为全球经济每年带来的正面收益可达4．5万亿美元。

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简介：<正>AttheinvitationofFriedrichEbertStiftung(FES)ofGermanyandCzechslovakForeignInstitute(CFI)oftheCzechRepublic,Mme.YanJunqi,Vice-ChairwomanoftheStandingCommitteeoftheNationalPeople’sCongress,ChairwomanoftheCentralCommitteeofChinaAssociationforPromotingDemocracyandPresidentofCAFIU