Polyhedron.docx
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Polyhedron.docx
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Polyhedron
Acomparativestudyofdigitalhumanmodellingsimulationresultsandtheiroutcomesinreality:
Acasestudywithinmanualassemblyofautomobiles OriginalResearchArticle
InternationalJournalofIndustrialErgonomics
TheALICETPC,alarge3-dimensionaltrackingdevicewithfastreadoutforultra-highmultiplicityevents
NuclearInstrumentsandMethodsinPhysicsResearchSectionA:
Accelerators,Spectrometers,DetectorsandAssociatedEquipment
Thedesign,construction,andcommissioningoftheALICETime-ProjectionChamber(TPC)isdescribed.Itisthemaindeviceforpatternrecognition,tracking,andidentificationofchargedparticlesintheALICEexperimentattheCERNLHC.TheTPCiscylindricalinshapewithavolumecloseto90 m3andisoperatedina0.5 Tsolenoidalmagneticfieldparalleltoitsaxis.
InthispaperwedescribeindetailthedesignconsiderationsforthisdetectorforoperationintheextrememultiplicityenvironmentofcentralPb–PbcollisionsatLHCenergy.Theimplementationoftheresultingrequirementsintohardware(fieldcage,read-outchambers,electronics),infrastructure(gasandcoolingsystem,laser-calibrationsystem),andsoftwareledtomanytechnicalinnovationswhicharedescribedalongwithapresentationofallthemajorcomponentsofthedetector,ascurrentlyrealized.Wealsoreportontheperformanceachievedaftercompletionofthefirstroundofstand-alonecalibrationrunsanddemonstrateresultsclosetothosespecifiedintheTPCTechnicalDesignReport.
ArticleOutline
1.Introduction
2.Fieldcage
2.1.Vessels
2.2.Centralelectrode
2.3.Rods
2.3.1.Resistorrods
2.3.2.High-voltagecablerod
2.3.3.Laserrods
2.3.4.Gasrods
2.4.Strips
2.5.Skirts
2.6.Endplates
2.7.I-bars
3.Readoutchambers
3.1.Designconsiderations
3.2.Mechanicalstructure
3.2.1.Wires
3.2.2.Wireplanes
3.2.3.Anode-wiregrid
3.2.4.Cathode-wiregrid
3.2.5.Gating-wiregrid
3.2.6.Coverandedgegeometry
3.2.7.Padplane,connectorsandflexiblecables
3.2.8.Padplanecapacitancemeasurements
3.2.9.Al-body
3.3.Testswithprototypechambers
3.3.1.Descriptionofproductionsteps
3.3.2.Qualityassuranceandtests
3.4.Chambermountingandpre-commissioning
4.Front-endelectronicsandreadout
4.1.Generalspecifications
4.1.1.Systemoverview
4.2.PASA
4.3.ALTRO
4.3.1.Circuitdescription
4.3.2.Physicalimplementation
4.4.Front-endcard(FEC)
4.4.1.Circuitdescription
4.4.2.Physicalimplementation
4.5.RCU
4.5.1.RCUmotherboard
4.5.2.DCSboard
4.6.Triggersubsystem
4.7.Radiationtolerance
4.7.1.SEU
4.7.2.SEL
4.8.Testingprocedure
5.Coolingandtemperaturestabilizationsystem
5.1.Overview
5.2.Thenecessityforuniformtemperatures
5.2.1.Heatloadandcomputationalfluiddynamicscalculations
5.3.Principleofunderpressurecooling
5.4.TPCcoolingplants
5.4.1.Coolingcircuits
5.5.Coolingstrategy
5.6.Commissioningofthecoolingsystem
5.6.1.Testwithmock-upsectors
5.6.2.Startupproceduresandoperation
5.6.3.Cavitationproblem
5.7.Temperaturemonitoringsystem
5.7.1.Temperatureprofileandhomogenization
6.Gasandgassystem
6.1.Gaschoice
6.1.1.Implicationsofthegaschoice
6.2.Descriptionofthegassystem
6.2.1.Configuration
6.2.2.On-detectordistribution
6.2.3.Filling
6.2.4.Running
6.2.5.Back-upsystem
6.2.6.Analysis
7.Lasersystem
7.1.Requirements
7.2.Systemoverview
7.3.Opticalsystem
7.3.1.UVlasers
7.3.2.Laserbeamtransportsystem
7.3.3.Micromirrorsandlaserrods
7.4.Laserbeamcharacteristicsandalignment
7.4.1.Narrowbeamcharacteristics
7.4.2.Narrowbeamlayout
7.4.3.Spatialprecisionandstability
7.4.4.Constructionandsurveys
7.4.5.Onlineandofflinealignment
7.5.Operationalaspects
7.5.1.Beammonitoringandsteering
7.5.2.Triggerandsynchronization
8.Infrastructureandservices
8.1.MovingtheTPC
8.2.Servicesupportwheel
8.3.Low-voltagedistribution
8.4.ChamberHVsystem
8.5.Gatepulser
8.6.Calibrationpulser
9.Detectorcontrolsystem(DCS)
9.1.Overview
9.1.1.Hardwarearchitecture
9.1.2.Softwarearchitecture
9.1.3.Systemimplementation
9.1.4.Interfacestodevices
9.1.5.Interlock
9.2.Electronicscontrol
9.2.1.Front-endmonitoring
9.2.2.Front-endconfigurationandcontrol
9.3.Interfacestoexperimentcontrolandoffline
10.Commissioningandcalibration
10.1.Calibrationrequirements
10.2.Commissioning
10.2.1.Commissioningphases
10.2.2.Datasets
10.3.Electronicscalibration
10.3.1.Pedestalandnoisedetermination
10.3.2.Tail-cancellationfilterparameterextraction
10.4.Gaincalibration
10.4.1.Kryptoncalibration
10.5.Drift-timecalibration
10.5.1.ShapingvariationsintheFEE
10.5.2.Driftvelocity
11.Performance
11.1.Space-pointresolution
11.2.Momentumresolution
11.3.Particleidentificationperformance
12.Conclusions
Acknowledgements
References
1,448articlesfoundfor:
pub-date>2007andtak(((DigitalNetwork)orAnalysisor(wholeprocess)orsingleorGDSordigitalor"back-end"orReportorResultsorfeedback)and(digitalor"front-end"orengineersorelectronicorengineeringorrelatedorExperienceorIC)and("back-end"orDCorDFTorP&RorAstroorSEorPTorToolsoruse)and("low-power"ordigitaloranalogormixedorSoCor(ICdesign)))
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PAX:
Amixedhardware/softwaresimulationplatformforspikingneuralnetworks OriginalResearchArticle
NeuralNetworks
StereoelectronicinteractioneffectsontheconformationalpropertiesofhydrogenperoxideanditsanaloguescontainingSandSeatoms:
Anabinitio,hybrid-DFTstudyandNBOanalysis OriginalResearchArticle
JournalofMolecularGraphicsandModelling
SolidwastemanagementinEuropeancountries:
Areviewofsystemsanalysistechniques ReviewArticle
JournalofEnvironmentalManagement
Lowpowerasynchronouscircuitback-enddesignflow OriginalResearchArticle
MicroelectronicsJournal
DigitalNetworkAnalysisofthewholeprocessasingleGDSdigitalback-endReport
Resultsfeedbackdigitalfront-endengineers,electronicengineeringrelated
ExperienceinICback-endDCDFTP&RAstroSEPT
Toolstouselow-powerdigitalandanalogmixedSoCICdesign
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Thispaperintroducesaframeworkforthesynthesisoflowleakagepowerasynchronouscircuitswhilemaintainingperformancerequirements.Intheproposedframework,ahigh-leveldescriptionofthesystemisreceivedandthenthecorrespondingspecificationwillbedecomposedintosmallercircuitswhichispossibletobedirectlymappedintopredefinedcircuittemplates.Theproposedflowhastheadvantageofexploitinganewperformancemetricandpresentsanefficientmethodologyforstaticestimationofaverageperformanceofasynchronouscircuitswithchoicesatthetemplatelevel.Theleakagereductionisdoneviasimultaneoussupplyvoltageselection,multiplethresholdvoltageassignmentandtemplatesizing.Thepowerreductiontechniquesareproperlyencodedinaquantumgeneticalgorithmandevaluatedsimultaneously.Experimentalresultsaregivenforanumberof90 nmrelatedbenchmarkcircuitsandshowthatthismethodreducesthetotalpowerbyclosetoanorderofmagnitude,withnoornegligibleperformancepenalty.
ArticleOutline
1.Introduction
2.Background
2.1.Asynchronouscircuits
2.2.Leakagepowerreductiontechniquesandrelatedworks
3.Poweroptimizationframework
4.AsyncTool:
synthesisofQDIasynchronouscircuits
5.Performancemodelfortemplatebasedasynchronouscircuits
5.1.Background
5.2.Simpletemplatemodel
5.3.ConditionaltemplatemodelusingProbabilisticTimedPetri-Net
6.Staticperformanceanalysistechnique
6.1.Anovelaverage-caseperformancemetricforcircuitswithconditionalstatements
6.2.Staticrangescomputation
6.3.Choiceprobabilitiescomputation
7.Template'sparametersassignmentmethodology
7.1.Binarypopulationencoding
7.2.Fitnessfunction
7.2.1.Power
7.2.2.Area
7.2.3.Performance
7.3.Controlparameters
8.Experimentalresults
8.1.Performanceestimationresults
8.2.Poweroptimizationresults
8.3.Comparisontoworst-caseoptimizedcircuits
9.Conclusion
References
职位描述
1.硕士及以上学历,电子、光学、物理、材料相关专业;
2.两年以上LCD相关产业工作经验,光罩图案设计,彩盒色素设计,LCD相关模拟软体使用,非晶硅薄膜电晶体扫描驱动电路设计,高色饱和与色差液晶面板设计,液晶与配向材料分析与开发;
3.熟练使用办公软件,良好的沟通能力和团队协作能力。
Low-powercurrent-reusedRFfront-endbasedonoptimizedtransformerstopology OriginalResearchArticle
Integration,theVLSIJournal
Thispaperdiscussesthedesign,analysisandperformanceofa2.4 GHzfullyintegratedlow-powercurrent-reusedreceiverfront-endimplementedin0.18 μmCMOStechnology.Thefront-endiscomposedofasingle-to-differentiallow-noiseamplifier(LNA),usinghigh-Qdifferentialtransformersandinductorsandacoupledswitchingmixerstage.ThemixertransconductorandLNAsharethesameDCcurrent.Measurementsofperformanceshowaconversiongainof28.5 dB,noisefigureof6.6 dB,1 dBcompressionpointof−32.8 dBmandIIP3of−23.3 dBmata250 kHzintermediatefrequency,whiledissipating1.45 mAfroma1.2 Vsupply.
ArticleOutline
1.Introduction
2.Designoftheproposedfront-end
2.1.LNAandmixertransconductancestage
2.2.Mixerswitchingstage
2.3.InductorsanddifferentialtransformerLC-tanks
3.Experimentalresults
4.Conclusions
Acknowledgements
References
Vitae
招聘人数:
3人
工作地点:
大连
岗位描述:
电子电器及LED行业用粘合剂产品的研发。
岗位要求:
1、高分子化学、高分子物理、应用化学、有机合成专业,硕士以上学历或光电子封装材料及相关领域(粘合剂,制药,涂料等)有二年以上工作经验。
具有良好的理论基础和实验技能。
2、身体健康,工作积极主动,富有团队精神。
3、熟练操作电脑,能阅读英语资料、英语会话熟练。
4、年龄45岁以下,身体健康,工作积极主动,富有团队精神(男性优先)。
Vibrationalspectra,abinitio/DFTelectronicstructurecalculations,and
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