简介：Anewmethodforpoint-polygonclassificationispresentedinthepaper.Thebasicideaofthemethodisfirstadvancedandthentwopropertiesofpolygonareintroduced.Thecriterionsforpoint-polygonclassificationaregivenexplicitly.Theanalysisshowsthatthepossessesperfectfunction,extensivesuitabilityandhighefficiency.

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简介：6月7日，互联网安全解决方案供应商CheckPoint软件技术有限公司在美国宣布推出ConnectraNGX，这是其SSLVPN解决方案的增强版本。ConnectraNGX充分发挥了CheckPoint最近推出的NGX平台的全新连接功能，以及支持中央化安全监控及维护的SmartCenter。ConnectraNGX有下列特点：

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简介：Stereomatchingisafundamentalandcrucialproblemincomputervision.Inthelastdecades,manyresearchershavebeenworkingonitandmadegreatprogress.Generallystereoalgorithmscanbeclassifiedintolocalmethodsandglobalmethods.Inthispaper,thechallengesofstereomatchingarefirstintroduced,andthenwefocusonlocalapproacheswhichhavesimplerstructuresandhigherefficiencythanglobalones.Localalgorithmsgenerallyperformfoursteps:costcomputation,costaggregation,disparitycomputationanddisparityrefinement.Everystepisdeeplyinvestigated,andmostworkfocusesoncostaggregation.Westudiedmostoftheclassicallocalmethodsanddividethemintoseveralclasses.Theclassificationwellillustratesthedevelopmenthistoryoflocalstereocorrespondenceandshowstheessenceoflocalmatchingalongwithitsimportantanddifficultpoints.Attheendwegivethefuturedevelopmenttrendoflocalmethods.

简介：Itisaresearchsubjectincomputervisionto3Dreconstructionofanobjectrepresentedbyasingle2Dlinedrawing.Previousworkson3Dreconstructionfrom2Dlinedrawingsfocusonobjectswithlines,plane,view,andsoon.Thispapermainlystudiesthe3Dreconstructionfrom2Dlinedrawings.Besides,anewapproachisproposed:itisthatfortheresearchofthepointcoordinatesof2Dlinedrawings,soastoachievetheobjectreconstructionbythereconstructionofpointcoordinates.Thereconstructionprocessincludes:①thecollectionofpointcoordinates(X,Y)of2Dlinedrawings;②thederivationofmathematicalformulaaboutthereconstructionofthepointof2Dlinedrawings,andcalculatingthecorrespondingpointofthe3Dcoordinates;③theregenerationof3Dgraphicswith3Dpoints;④analyzeerrorbytheproportionalofparallelofaxonometricprojection,inordertoprovetheaccuracyofthemethod.

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简介：Thispaperpresentsanewbasis,theWSBbasis,whichunifiestheBernsteinbasis,Wang-BallbasisandSaid-Ballbasis,andthereforetheBéziercurve,Wang-BallcurveandSaid-BallcurvearethespecialcasesoftheWSBcurvebasedontheWSBbasis.Inaddition,therelativedegreeelevationformula,recursivealgorithmandconversionformulabetweentheWSBbasisandtheBernsteinbasisaregiven.

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简介：最近CheckPoint软件技术有限公司推出一个全新安全设备系列,它包括7款根据软件刀片架构而优化的产品,其性能约是前代产品的三倍。这些产品的型号由桌面2200至21400,提供了不同的价格和性能选择,例如防火墙吞吐量高达100Gbps,甚至2,900个SecurityPowerUnits得分（SPU）,SPU是CheckPoint最近发布的安全性能评定新标准。

简介：SharePoint越来越受到欢迎。已成为一个重要的数据仓库。但是。这种数据经常会和公司的其它数据系统相隔离。成为一个数据孤岛。本文详细介绍了使用Web服务来访问SharePoint的列表数据。并使用SSIS把结果数据集转换为SQLServer数据表。这一导入过程还可以设置为自动定时运行。以保持数据之间的同步。

简介：Inthispaper,thesmoothconnectionbetweentwoB-splinesurfacesisdiscussed.First,abriefproofofsomesimplesufficientconditionsofG~0andG~1continuityisgiven.Onthisbasis,anovelmethodforG~0orG~1connectionbetweentwoadjacentB-splinesurfacesispresented.Areparameterizationstepisfirstlytakenforoneofthesurfacessuchthattheyhavethesameparameterizationinvdirection,then,adjusttheirboundarycontrolverticestomakethemG~0orG~1connected.TheG~1connectionparameterisdeterminedbyanoptimizationproblem.Comparedwiththeexistedmethods,ourmethodissimpleandeasytobeusedinpractice.

简介：早在计算机和互联网普及应用之初,Internet的安全问题就成了IT时代的重要议题.由此,防火墙作为处理网络安全问题的重要成员便应运而生了.近几年,国内防火墙市场风起云涌,国外厂商也纷纷把目光投到中国.

简介：Airentrappedinliquidmetalduringthemoldfillingprocessseriouslyaffectsthecastingquality,thusitisimportanttotrackitsbehaviorinthemoldcavity.Aliquid-gastwo-phaseflowmodelisdevelopedtodescribethemoldfillingprocessandpredicttheairentrapmentdefect.ThemodelisbasedonthecombinationofSOLAandLevelSetMethod.ThepressureandvelocityfieldsarecalculatedbySOLA,andtheinterfacemovementissimulatedbyLevelSetmethodasthemostcommoninterfacetrackingmethodinrecentyears.Inordertovalidatethefeasibilityofthemodel,theliquid-gastwo-phasesimulationresultsweretestedbythebrokendamproblemandtheS-shapedexperiment.ComparisonbetweentheexperimentsandsimulationresultsshowthatLevelSetmethodmightbeaverypromisingtoolintwo-phaseflowsimulationduringthemoldfillingprocess.

简介：在无数魔戒迷的翘首苦待下，“魔戒Ⅱ-双塔奇兵”终于重磅出击，在北美首映就超过了第一集，创全球历次电影首映的最高票房成绩，且仍有乘胜长驱之势。是什么让这部影片受到如此的关注?是创下逾9亿美元的全球票房收入，荣登电影票房史的第五位，还是被“TheSun”评选为改变电影史的十部巨作之一?到底有何超凡魅力，让我们来一探究竟。