简介：Theresistanceseenintotheportinann-cubeformedbytwoverticesofdistancen-1isexactlyformulatedforanyposiiveintegern.Theresistancesseenintotheportinann-cubeformedbyanytwoverticesisalsofoundbyexperimentsfor1≤n≤7.

简介：ThedesignofanOLAPsystemforsupportingreal-timequeriesisoneofthemajorresearchissues．Oneapproachistousedatacubes，whicharepre-computedmultidimensionalviewsofdatainthedatawarehouse．Aninitialsetofdatacubescanbederived．fromwhichtheanswertoeachfrequentlyaskedquerycanberetrieveddirectly．However，therearetwopracticalproblemsconcerningthedesignofacubebasedsystem：1)themaintenancecostofthedatacubes，and2)thequerycosttoansweraselectedsetoffrequentlyaskedqueries．MaintainingadatacuberequiresdiskstorageandCPUcomputation，Sothemaintenancecostisrelatedtothetotalsizeofthedatacubesmaterialized，andthuskeepingalldatacubesisimpractical．Thetotalsizeofcubesmaybereducedbymergingsomecubes．However，theresultinglargercubeswillincreasethequerycostofansweringsomequeries．Iftheboundsonmaintenancecostandquerycostarestrict．someofthequeriesneedtobesacrificed．Anoptimizationproblemindatacubesystemdesignhasbeendefined．Withamaintenance-costboundandaquery-costboundgivenbytheuser，itisnecessarytoopti-mizetheinitialsetofdatacubessuchthatthesystemcanansweramaximumnumberofqueriesandsatisfythebounds．ThisisanNP-completeproblem．ApproximatealgorithmsGreedyRemoving(GR)and2-GreedyMergingwithMultiplepaths(2GGM)areproposed．Experimentshavebeendoneonacensusdatabaseandtheresultsshowthatourapproachinbotheffbctiveandefficient.

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简介：迄今为止，AOpen已经推出3款不同外型风格的迷你准系统，取名为XCcube，分别是纯色系列、Yuppie系列和运动系列，针对不同消费群体的需求。

简介：很多人都对光立方绚烂的效果印象深刻，心动不已。但要制作一个光立方不但需要很强的动手能力，还要有足够的耐心设计一大堆LED驱动电路，最后还要为硬件成品开发显示程序，让光立方运行起来。对于一个初学者来说，要完成这些工作，难度非同寻常。为此，本期介绍一款仅需极少元器件、制作简单，即使是初学者也可以制作出的规范、美观的光立方作品。

简介：Basedonlong-timeresearchonvocationalteachingcubetheoryingraphicseducationandanalyzingontheintellectualstructureintheprocessofreadingengineeringdrawing,thegraphicsintellectualthree-dimensionalmodel,whichismadeupof100cubes,isfoundedandtestedinhighervocationalgraphicseducation.Thissystemservesasagoodguidancetothegraphicsteaching.

简介：酷比魔方系列MP3一直在外观造型上有着不错的口碑，源系韩国血统让这个牌子在MP3市场上占有了先天的优势。除去造型，做工也是酷比追求的一个标准，其中的cube1000则是酷比的一个标志性产品。

简介：Approximatequeryprocessinghasemergedasanapproachtodealingwiththehugedatavolumeandcomplexqueriesintheenvironmentofdatawarehouse.Inthispaper,wepresentanovelmethodthatprovidesapproximateanswerstoOLAPqueries.Ourmethodisbasedonbuildingacompressed(approximate)datacubebyaclusteringtechniqueandusingthiscompresseddatacubetoprovideanswerstoqueriesdirectly,soitimprovestheperformanceofthequeries.WealsoprovidethealgorithmoftheOLAPqueriesandtheconfidenceintervalsofqueryresults.AnextensiveexperimentalstudywiththeOLAPcouncilbenchmarkshowstheeffectivenessandscalabilityofourcluster-basedapproachcomparedtosampling.

简介：思科系统公司日前宣布就收购位于加州桑尼维尔的私营企业P—Cube公司达成了最终协议。P—Cube是一家领先的IP服务控制平台开发商。它所开发的平台可以帮助服务供应商识别用户、分类应用、提高服务质量，并在不对基础设施进行大规模升级的情况下收取多项IP服务的费用。通过此次收购，思科将能够为服务供应商提供控制和管理高级IP服务的能力，例如IP语音、互动游戏、视频点播、点对点通信并可以帮助服务供应商开发其他与众不同的服务。

简介：Anewtestmethodforsingleinteriorrightangleinacornercubeprismispresented.Somekeypointsandparametersareanalyzedandderived.Theadvantageofthismethodisconcludedbycomparingwithsomecurrentconventionalmethods.

简介：ApassivelyQ-switchedNd3+:YAGlaserwithcornercubeistheoreticallyandexperimentallystudied.Weanalyzethepolarizationvariationincavityandsimulatethepeakpower,pulseenergyandpulsewidthchangedwiththerotationangleofcornercubenumerically.Anexperimentismadetoverifythetheoreticalresults.Withrotatingtheangleofcornercubeabouttheaxisthevariationrangeofpeakpoweris1.77MW(from10.36to8.59MW),andthatofpulseenergyis14.9mJ(from159.5to174.4mJ),thefluctuationofpulsewidthis2.95ns.Theexperimentalresultsagreewiththetheoreticalanalysistotheextentofvariationrules.Themostdynamictostaticenergyratioof62.5%isachieved.

简介：§0.IntroductionOriginally,thedefinitionofexpansivehomeomorphismwasproposedin[9]asaconceptintopologicaldynamics.Sincethen,ithasbeeninvolvedinsomeimportanttopicsindifferentiatedynamics.Forinstance,thewell-knownAnosovdiffeomorphismandtherestrictionofSmale’shorseshoemaponitsfl-setaretypicalexamplesofexpansivehomeomorphisms.Thisconcepthasalsobeenapplied,forexample,inergodictheory110-1andthetheoryofstructuralstability1-43.Inthemathematicaldescriptionofthestrangeattractorgcs:i,expansivenessisoneofthe

简介：让p是一个奇怪的素数。在我们证明那的这篇论文，顺序p(3)的所有四价的connectedCayley图是正常的。作为应用，奇怪的主要立方体的顺序的四价的对称的图的一个分类被给。

简介：Thecoherencecubetechnologyhasbecomeanimportanttechnologyfortheseismicattributeinterpretation,whichextractsthediscontinuitiesoftheeventsthroughanalyzingthesimilaritiesofadjacentseismicchannelstoidentifythefaultform.Thecoherencecubetechnologywhichusesconstanttimewindowlengthscannotbalancetheshallowlayersandthedeeplayers,becausethefrequencybandofseismicdatavarieswithtime.Whenanalyzingtheshallowlayers,thetimewindowwillcrossoveralotofevents,whichwillleadtoweakfocusingabilityandfailuretodelineatethedetails.Whilethetimewindowwillnotbelongenoughforanalyzingdeeplayers,whichwillleadtolowaccuracybecausethecoherencesnearthezeropointsoftheeventsareheavilyinfluencedbynoise.Forsolvingtheproblem,weshouldmakearesearchonthecoherencecubetechnologywithself-adaptivetimewindow.Thispaperdeterminesthesamplepoints’timewindowlengthsinrealtimebycomputingtheinstantaneousfrequencybandswithWaveletTransformation,whichgivesacoherencecomputingmethodwiththeself-adaptivetimewindowlengths.Theresultshowsthatthecoherencecubetechnologywithself-adaptivetimewindowbasedonWaveletTransformationimprovestheaccuracyoffaultidentification,andsupressesthenoiseeffectively.Themethodcombinestheadvantagesoflongtimewindowmethodandshorttimewindowmethod.

简介：Thelowfrequencycyclicaltransientnaturalconvectioninacubeenclosurewithaninternalisolatedverticalheatedplatewasinvestigatedexperimentally.Acomputer-aidedexperimentalsystemwasdesignedtogeneratethecyclicalheatingpowerinputandalsousedfordatareduction.Theeffectsofthecyclicheatingpowerinputamplitude(from0to8W)andfrequency(form1/5400s^-1to1/600s^-1)aswellastheper-cycletime-averagepowerinput(from8to24W)onthetransientandtime-averageNusseltnumberwereparametricallystudied.Itwasfoundthatforsuchcyclicaltransientnaturalconvectionwithlowfrequency,theplateheatingpowerinputamplitudeandfrequencyhavelittleeffectsonthetime-averageNusseltnumberaslongasthecyclicaltime-averageheatingpowerinputremainsthesame,althoughthetransientNusseltnumbermaybesignificantlyaffected.Therefore,themodifiedGrashofnumberbasedontheplateaverageheatfluxcanbeusedtocharacterizethetime-averageheattransferprocess.Theplatetime-averageNusseltnumberisabout15%lessthantheinfinite-spaceNusseltnumber,Thelocationoftheisolatedplateinenclosuredoesnotappreciablyinfluencethetime-averageheattransfercharacteristicsoftheplate.

简介：作为曾经的家用游戏主机霸主，任天堂在N64主机上首尝败绩，N64在全球销量仅有2500万台，远远落后于索尼PS同期的7000万台。这一次失手，终于让固执的任天堂重新审视游戏市场，并最终放弃卡带而使用大容量的光盘作为下一代游戏载体。

简介：在今年6月召开的“2016全球SDNFV技术大会”上，中国联通带来了自主研发的SDN网络协同器CUBE-O和参与国际开源项目E-CORD的研究成果。这不仅是中国联通在新技术领域的前沿探索，也是其践行CUBE-Net创新型网络的最有力说明。

简介：模型是将设计方案物化为与实物相似的形象直观的一种物体。模型制作既能增强技术设计的视觉感染力，又可帮助设计者通过反复观摩、推敲分析、不断修改完善设计方案的可靠性，进而求得最佳设计效果。模型是对设计理念的具体表达，是设计委托者与设计人员和使用者之间交流的“技术语言”，而这种“技术语言”是三维实体造型，展现了设计“物”的具体形态。

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简介：【摘要】电视天气预报是气象公共服务的重要窗口和平台， 电视天气预报后期编辑作为常态化的工作，除了操作人员的耐心细致，更需要技术标准和工作细则。本文旨在探讨在电视天气预报制作的过程中，如何从技术角度建立科学的工作流程和方法，利用大洋非线性编辑系统的特点提高电视天气预报节目的制作质量、播出质量、技术管理等方面的问题。对提高电视天气预报节目的技术质量有积极意义。