简介:Avirtuallabsystemisthesimulationofrealdevicesandexperimentsusingcomputerandnetworktech-nology.Itcanmakeusersdoexperimentseasily,observeexperimentphenomenaandresultsthroughtheremotetermi-nal.Consequently,userscangetfinalresultstoverifyrelativetheory.Thearticleanalysesthefeaturesofvirtuallabsystems.Arealvirtuallabsystemnamed'MultimediaVirtualLabforDigitalCircuitLogicDesign(MVLDCLD)'whichhasbeendevelopedbytheauthorsandtheirgroupisalsopresented.
简介:HeadedbyProfessorXuGuangxianandNiJiazan,theLaboratoryofRareEarthChemistryandPhysics,ChangchunInsti-tuteofAppliedChemistry,AcademiaSi-nica,hasbeenopenedtoforeignscien-tistssinceOctober,1987,andthefirstplenarysessionoftheAcademicCommi-tteewasheldinMarch,1988.Therebeganthefirstbatchofresearchprojects.Thehighlightsofthelab.involvesnewtechniquesforREseparation;synthe-sisofnewREcompounds;explorationofthemechanismofsolidphasereaction;
简介:TheKeyLabofGeophysicalExplorationinNorthwestGeologicalResearchInstituteisasubsidiaryoneoftheKeyLabofGeophysicalExploration,CNPC.TheLabownstheupdatedmodernequipment,thefirstseniorgeophysicalresearchersandsoftwareprogrammers.Itisfocusingonresearch,softwaredevelopment,andapplicationsrelatedtointegratedreservoirinversion,hydrocarbondetection,andimagingtechnologyforcomplexgeology.
简介:JeffersonLabhasimplementedascalable,distributed,highperformancemassstoragesystem-JASMine.ThesystemisentirelyimplementedinJava,providesaccesstorobotictapestorageandincludesdiskcacheandstagemanagercomponents.Thediskmanagersubsystemmaybeusedindependentlytomanagestand-alonediskpools.Thesystemincludesaschedulertoprovidepolicy-basedaccesstothestoragesystems.Securityisprovidedbypluggableauthenticationmodulesandisimplementedatthenetworksocketlevel.Thetapeanddiskcachesystemshavewelldefinedinterfacesinordertoprovidsintegrationwithgrid-basedservices.Thesystemisinproductionandbeingusedtoarchive1TBperdayfromtheexperiments.andcurrentlymovesover2TBperdaytotal.ThispaperwilldescribethearchitectureofJASMine;discusstherationaleforbuildingthesystem,andpresentatransparent3^rdpartyfilereplicationservicetomovedatatocollab-oratinginstitutesusingJASMine,XML,andservlettechnologyinterfacingtogrid-basedfiletransfermechanisms.
简介:分布式的研究与学术gigabits开的网络实验室(龙实验室)是为与基于用三的同盟网络,层遮蔽结构的下一代因特网(NGI)有关的研究目的唯一的试验台。作为NGI的必要部分,与事情(IoT)的因特网有关的研究设备应该在龙实验室站台上被使用。这篇论文建议一条途径到由集成在龙实验室和IoT之间的云结构的每层集成IoT设备到同盟网络。这项研究活动扩大龙实验室的使用,做IoT和在同盟网络工作很好的无线传感器网络(WSN)设备。它也是为三层云结构的foundational研究,它能为另外的相关研究被再使用。最后,它为IoT因特网协议版本6完成准备工作(IPv6)设备在龙实验室研究,它为NGI是必要的。
简介:Thegrowthandmorphologicalcharacteristicsof25speciesofpoplarwereinvestigated.ThecuttingswerecultivatedinHoaglandNutrientSolution,whichwasmadewithsodiumchloride(NaCl)solutionsofconcentrationof1.00,3.00,4.00,5.00,6.00,and8.00g/L,respectively.Undersuchsaltstress,thenewbranchlengthandbiomassaccumulationofcuttingsdecreasedasthesaltconcentrationincreased.Theroot/shootratioofmostofspeciesshowedanescalationandthenreductiontendency.Underlowcon...
简介:主要介绍了电能对电力系统的影响和谐波参数的计算方法,其中包括应用快速傅立叶变换求取基波和谐波的幅值、相位,利用相关方法求取信号的相位差等,最后介绍了虚拟电能分析仪的系统设计,包括硬件接口电路设计及虚拟仪器用户界面设计。
简介:给出了利用LabWindows/CVI虚拟仪器软件开发工具中的RS232接口库函数来在PC机与DSP数字信号处理器之间进行串行通信的具体设计方法,给出了PC机和DSP之间的硬件连接方式和基本的编程思路。
简介:摘要硅酸盐基多孔材料在现代建筑业需求不断扩大,运用Virtual.Lab软件对影响多孔材料吸声系数的多个重要参数进行了模拟仿真,实验结果显示,多孔材料的孔隙率对吸声系数的提高优于单纯改变容重测得的吸声系数。运用正交试验方法,结果表明,材料密度为610kg/m3,孔隙率为0.7的材料参数组合因素能有效提高多孔材料的吸声性能,