简介:PROOSisadistributedoperatingsystemrunningonthecomputingnodesofmassivelyparallelprocessingcomputerDawning-1000.Itisanefficientandeasilyextendiblemicrokerneloperatingsystem.ItsupportstheIntelNXmessagepassinginterfaceforcommunication.
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:近日,国内通用耗材的领航企业天威推出了新型环保兼容耗材R[R[HPQ2624A硒鼓.为HP1300/1150/1000激光打印机配备了“新鞍“。