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：激光焊接是利用激光熔化母材本身金属来填充焊缝，因此激光焊缝表面没有余高，并有少许凹陷，由于构件结构的特殊性，有关技术要求焊缝的焊接深度仅为16mm，焊缝宽度不得大于6mm，而实际上焊缝区域的母材厚度约为6-12．5mm变化，焊缝尺寸相对于母材厚度很小，造成焊缝在底片上形成的影像不明显。简体内部密封并以其他材料填充，在进行射线检测时射线不可能采取双壁单影法透照对焊缝实施检测，只能采用单壁单影的透照方法。另外，靠近简体内侧加工有工艺弧度，在射线透射方向上母材厚度有很大变化，

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

简介：

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。

简介：Lowcyclefatiguecrackpropagation(FCP)behavioroftwoPC/ABSblendswithaweightra-tioofPCtoABSbeing80/20and60/40,respectively,isinvestigated.Experimentsarecarriedoutbyusingstandardcompacttension(CT)specimens.Thefracturesurfacesareexaminedwithascanningelectronmi-croscope(SEM).ItisshownthattheFCPresistanceofPC/ABSblendwith20%ABSparticlesishigherthanthatofPC/ABSblendwith40%ABSparticles.ItisfoundthatproperABSparticlecontentcanresultinthetougheningofPC/ABSblendsthroughparticlecavitationandshearyieldinginmatrix.

简介：

简介：

简介：Thestrategyofsequentiallyspin-coatingaperovskitefilmfromtheperovskiteprecursorandanelectrontransportinglayerof[6,6]-phenyl-C71-butyricacidmethylester(PC71BM)isdevelopedtosimplifythefabricationprocedureofperovskitesolarcells.X-raydiffractionandscanningelectronmicroscopyindicatethatPC71BMfilmonperovskitelayercanretardtheevaporationofdimethylsulfoxide（DMSO）efficiently,thusprolongingthetransformationofintermediatephasetoperovskitecrystals,leadingtoahighqualityperovskitethinfilm.Thesolarcellswiththestructureofindiumtinoxides（ITO）/poly（3,4-ethylenedioxythiophene）:poly（styrenesulfonate）（PEDOT:PSS）/CH3NH3PbI3/PC71BM/bathocuproine（BCP）/Agmadefromthissimplifiedmethodexhibitahigherefficiency（12.68%）thanthosefromtheconventionalone-stepmethod（9.49%）.

简介：Theefficiencyofthepoly（3-hexylthiophene）（P3HT）and[6,6]-phenylC61-butyricacidmethylester(PC61BM)basedorganicsolarcellswasenhancedbyusing1,2,4-trichlorobenzene（TCB）asaprocessingadditivetocontroltheblendmorphology.TheadditionofTCBimprovedthearrangementofP3HTwhichresultedingoodphaseseparatedblendfilms.Correspondingly,theoptimizedsolarcellsshowedapowerconversionefficiency（PCE）of4.17%withafillfactor（FF）of0.69,whichwerehigherthanthoseofcommonthermalannealingdevices（PCE3.84%,FF0.67）.Theefficiencywasfurtherimprovedto4.74%bythermalannealingat150°Cfor10minwithahigherFFof0.74.