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防火墙+加密 加固VPN

为公共网运营商和用户提供广域网解决方案的领先厂商As(:end通信公司目前宣布,免费将其经ISCA认证的Set:ureConnect防火墙软件和IPSec,加密功能,集成到Pipeline远程访问路由器系列中。作为能提供安全、完整的因特网解决方案的首台路由器,Hpeline系列目前能提供虚拟专用远程连网(VPRN)功能,从而帮助企业客户建立安全、经济的虑拟专用网(VPN)。带内置VRPN功能的Pipelhle的问世,表明Ascell(1已实现了年初发布的要提供’MultivPN战略中关键部件的承诺。 根据工业分析公司Frost&suUivan的最近报告,』\sceil...  (本文共1页) 阅读全文>>

《China Oil & Gas》1998年02期
China Oil & Gas

CNOOC Strengthens Protection of Submarine Pipeline

TwoseriousoilspillingaccidentshappenedinoffshoreoilfieldslocatedintheeastpartofSouthChinaSeain1995and1996becauseofsubmarinepipelineabrupturebytrawlingoffishingvessels.Inordertopreventsuchaccidents,ChinaNationalOffshoreOilCorp.(CNOOC)andEasternSouthChinaSeaOilCorporationhaveworkedoutvariousmeasurestoprotectsubmarinepipeline.First,theyputprotectivecasingsoninjectionjunctionsofsubmarinepipelines.Forinstance,twosubmarine...  (本文共1页) 阅读全文>>

《China Oil & Gas》1998年03期
China Oil & Gas

Oil/gas Pipeline Development in China

Todate,pipelinetransportationintheworldhasgotahistoryofmorethan130years.Chinaisoneoftheearliestcountriesusingpipelinefortransportation,butpipelinedevelopmentinthecountryusedtoberatherslow.Before1949,pipelinetransmissionwaspractivallyablank.In1958,twooilpipelineswerebuiltinparallelfromKaramaytoDushanziRefinery,300kmintotallength.SinceAug.1970,twocrudeoilpipelineswerebuilt,namely,theDaqing-Tieling-DalianpipelineandtheD...  (本文共3页) 阅读全文>>

《China Welding》1999年01期
China Welding

An experimental study of the fracture propertiesof oil pipeline girth welds

0 IntroductionLongdistancepipelinesareoneofthemostimportantwaysoftransportationforoilandnaturalgas.Inthepastfewyears,withthedevelopmentandutilizationofoilandnaturalgasresources,pipelinetransportationtechnologyhasbeendevelopedveryrapidly.Thequalityofinsituweldedpipelinegirthweldshasalargeeffectonthesafeoperationofpipelinesystems,therefore,itisconsideredimportanttoprovideassurancethattheseweldswillnotloadtofailure.Inor...  (本文共8页) 阅读全文>>

《China Oil & Gas》1999年01期
China Oil & Gas

Status and Development of Oil/Gas Pipeline in China

Bytheendof1997,altogether419oil/gaspipelineshavebeencompletedinChina,totalingl.9x104km.Oilpipelinenetworkinnorth,eastandnortheastChinaandgasnetWorkinsouthwestChinahavetakenshape,carrying90%ofoilandgasoutputofthecountrytorefineries,petrochemicalplantsanddocks.SinceAug.1970,twocrudeoilpipelineswerebuilt,namely,theDaqing-Tieling-DalianpipelineandtheDaqing-TielingQinhuangdaopipeline,thenthelongesttrunkline.Thetwopipeline...  (本文共3页) 阅读全文>>

《China Oil & Gas》1999年01期
China Oil & Gas

A Survey of Sinopec Pipeline Transport

(Ed.WuBaoguo)A Surve...  (本文共1页) 阅读全文>>