简介：Thispaperdescribesthereplacementofacontrollerforaprogrammableuniversalmachineforassembly(PUMA)512robotwithanewlydesignedPCbased(openarchitecture)controlleremployingareal-timedirectcontrolofsixjoints.TheoriginalstructureofthePUMArobotisretained.Thehardwareofthenewcontrollerincludessuchin-housedesignedpartsaspulsewidthmodulation(PWM)amplifiers,digitalandanalogcontrollers,I/Ocards,signalconditionercards,and16-bitA/DandD/Aboards.AnIntelPentiumIVindustrialcomputerisusedasthecentralcontroller.ThecontrolsoftwareisimplementedusingVC++programminglanguage.Thetrajectorytrackingperformanceofallsixjointsistestedatvaryingvelocities.ExperimentalresultsshowthatitisfeasibletoimplementthesuggestedopenarchitectureplatformforPUMA500seriesrobotsthroughthesoftwareroutinesrunningonaPC.Byassemblingcontrollerfromoff-the-shellhardwareandsoftwarecomponents,thebenefitsofreducedandimprovedrobustnesshavebeenrealized.

简介：ThisnotedescribestheconstructionofhardwareandsoftwareoftheBESPC-FARMandBESofflinedataanalysisenvironmentinLinuxplatform.ThejobmanagementpackagesNQSisdescribed.TheperformanceoftheBESPCFARMalsobepresented.

简介：TheHERA-BdataacquisitionandtriggeringsystemsmakeuseofLinuxPCfarmsfortriggeringandonlineeventreconstruction.Wepresentinthispapertherequirements,implementationandperformanceofbothPCfarms.Theyhavebeenfullyworkingduringtheyear2000detectorandtriggercommissioningrun.

简介：ThisnotedescribesthemodificationsoftheBESofflinedatareconstructioncodesfromtheHP-UNIXtoPCLINUXplatform.Themainchangesofthecodesandtheresultscompairsonwiththatofbeforemodificationsarepresented.

简介：TheZEUSexperimenthasmigrateditsreconstructionandanalysisfarmstoaPC-basedenvironment.Morethanoneyearofexperiencehasbeenacquiredwithsuccessfuloperationofananalysisfarmdesignedforseveralhundredusers.Speciallydesignedsoftwarehasbeenusedtoproveidefastandreliableaccesstolargeamountsofdata(30TBintotal),AftertheongoingupgradeoftheHERAluminosity,higherrequirementswillariseintermsofdatastoragecapacityandthroughputrate,Thenecessityofabiggerdiskcachehasledtoconsiderationofsolutionsbasedoncommoditytechnology,PC-basedfileserversarebeingtestedasacost-effectivestoragesystem,Inthisarticlewepresentthehardwareandsoftwaresolutionsdeplogyedanddiscusstheirperformance.scalabilityandmaintenanceissues.

简介：AnaffordablesolutiontoTier-3RegionalCenter(RC)ispresentedinthistalk,asimpleprototypehasbeensetupforevaluationofthesystemperformance,thisprototypecanbeeasilyscaledtobiggerone.Asetofmeasurementshavebeenconductedinbothcomputerandnetworksystembehavioursinmultipleconcurrentlyrunningjobscontexts.Inthetalkthesemeasuredresultsaretalkedanddiscussed,includingsystemandnetworkeffectiveutilizationsandlimitations,andtheidentifiedbottlenecksindifferentnetworklayouts,andthecomparisonswithsimulation.

简介：ThestudiesundertakentopreparetheTechnicalDesignReportoftheATLAS3^rdLevelTrigger(EventFilter)areperformedondifferentprototypesbasedondifferenttechnologies.wepresentherethemostrecentresultsobtainedforthesupervisionoftheprototypebasedonconventional,off-the-shelfPCmachinesandJavaMoblieagenttechnology.

简介：Thedolly+isaLinuxapplicationprogramtoclonefilesanddiskpartitionimagefromaPCtomanyothers.Byusingseveraltechniquessuchaslogicalringconnection,multithreadingandpipelining,itcouldachievehighperformanceandscalability.Forexample,intypicalcondition,installationstoahundredPCstakesalmostequivalenttimefortwoPCs.TogetherwiththeIntelPXEandtheRedHatkickstart,automaticandveryfastsysteminstallationandupgradingcouldbeperformed.

简介：以PC机为主体的遥测地面站是将遥测系统中的接收机、同步器、解调器、时间码和信号源等主要部件小型化、智能化和模块化，作为PC机的功能模块卡插入PC机的PCI扩展槽中，使PC机升级成为一个功能齐全的PC机遥测站。PC机遥测站已成为国内外遥测系统发展的一个重要方向，有些相关产品已非常成熟，不仅投入工程使用，而且作为一种通用遥测平台推广到许多应用领域，为开发PC机再入遥测站奠定了良好的基础。

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简介：互联网的普及和应用大幅改变了教师的课堂教学模式和学生的学习模式.本文首先介绍了物理专业实验课程的现状和在当前互联网普及应用背景下改革的必要性.然后重点阐述了基于互联网的专业物理实验课程的教学改革方案和实施方法.最后对教学改革的尝试所取得的效果和意义进行总结.