简介:Athena,theSoftwareFrameworkforATLAS'offlinesoftwareisbasedontheGaudiFrameworkfromLHCb^1,TheProcessingModelofGaudiisessentiallythatofabatch-orientedsystem-aUserpreparesafiledetailingtheconfigurationofwhichAlgorithmsaretobeappliedtotheinputdataofajobandtheparametervaluesthatcontrolthebehaviorofeachAlgorithminstance.TheFrameworkthenreadsthatfileonceatthebeginningofajobandrunstocompletionwithnofurtherinteractionwiththeUser.WehaveenhancedtheProcessingModeltoincludeaninteractivemodewhereaUsercancotroltheeventloopofarunningjobandmodifytheAlgorithmsandparametersonthefly.WechangedonlyaverysmallnumberofGaudiClassestoprovideaccesstoparametersfromanembeddedPythoninterpreter,NochangewasmadetotheGaudiProgrammingModel.i.e.,developersneednotchangeanythingtomakeuseofthisaddedinterface,WepresentdetailsofthedesignandimplementationoftheinteractivePythoninterfaceforAthena.
简介:AnewmechanicsmodelbasedonPeierlsconceptispresentedinthispaper,whichcanclearlycharacterizetheintrinsicfeaturesnearatipofaninterfacialcrack.Thestressanddisplacementfieldsarecalculatedundergeneralcombinedten-sileandshearloadings.Theneartipstressfieldsshowsomeoscillatorybehaviorsbutwithoutanysingularityandthecrackfacesopencompletelywithoutanyoverlappingwhenremotetensileloadingiscomparablewithremoteshearloading.Afracturecriterionforpredictinginterfacetoughnesshasbeenalsoproposed,whichtakesintoaccountfortheshieldingeffectsofemitteddislocations.Thetheoreticaltoughnesscurvegivesexcellentprediction,ascomparedwiththeexistingexperimentdata.
简介:Theuser-computerinterfaceforcolorselectionisofgreatsignificancefortheuseofcolorsincomputergraphics,particularlyinsomefieldswheretheusedcolorshavetobeselectedcarefully.Thispaperdiscusseswhatfactorshavetobeconsideredtodesignaneffectiveuserinterfaceforcolorselec-tion.Italsopresentsamethodwhichshowshowtorepresent3Dcolorspacesaccordingtothepsychol-ogyofcolorperception.Twoexamplesofuserinterfaceforcolorselectionaregiven.OneisbasedontheCLELUVuniformcolorspace,theotherisbasedonRGB-rotatedcolormodel.
简介:Inthispaper,aclassofnewimmersedinterfacefiniteelementmethods(IIFEM)isdevelopedtosolveelasticityinterfaceproblemswithhomogeneousandnon-homogeneousjumpconditionsintwodimensions.Simplenon-body-fittedmeshesareused.Forhomogeneousjumpconditions,bothnon-conformingandconformingbasisfunctionsareconstructedinsuchawaythattheysatisfythenaturaljumpconditions.Fornon-homogeneousjumpconditions,apairoffunctionsthatsatisfythesamenon-homogeneousjumpconditionsareconstructedusingalevel-setrepresentationoftheinterface.Withsuchapairoffunctions,thediscontinuitiesacrosstheinterfaceinthesolutionandfluxareremoved;andanequivalentelasticityinterfaceproblemwithhomogeneousjumpconditionsisformulated.Numericalexamplesarepresentedtodemonstratethatsuchmethodshavesecondorderconvergence.
简介:Inthispaper,aframeworkispresentedforaddingageneralcommandrecoveryfacilitytouserinterface.Asimplemodelofinteractivesystemisdiscussedandfourmetacommands.UNDO,REDO.SKIPBACK,andSKIPFORWARD,aredefined.Thedouble-linkedlistisusedtoorganizetherecoveryinformationinanaturalwayforeasyimplementation.Applicationsoftheframeworktovariousdemandsofcommandrecoveriesshowthattheuseoftheframeworkisveryeasyandconvenient.
简介:Anewapproachisgiventoanalysetheregularityofsolutionsnearsingularpointsfortheinterfaceproblemsofsecondorderellipticpartialdifferentialequations.Forgeneralequationswithnonsyrnmetricdominanttermsanddiscontinuouspiecewiaesmoothcoefficients,itisprovedthatsolutionsinH^1canbedocomposedintotwoparts,oneofwhichisafinitesumofparticularsolutionstothecorrespondinghomogeneonsequationswithpiecewiseconstantcoettioionts,andtheotheroneofwhichistheregularpart.Moreoveraprioriestimationsareproven.
简介:Anapproachtosupportinguserinterfacesusinganattributegrammarcombinedwithaneventmodelisdescribed.Themainemphasisishowtorepresentamulti-threaddialoguemodelindirectmanipulationuserinterfaces.Itisshownthatcontrolsequencewithindialogues,communicationwithotherdialogues,andsomecomputationsforapplicationscanbespecifiedwithasyntacticandsemanticnotation.Theattributegrammarspecificationcanbeimplementedusinganattributegrammarintepreterembeddedintherun-timestructuresupportingcommunication,synchronization,anddialogueexecuton.
简介:Abriefreviewwithdiscussionsisconductedforsomepertinentworks,doneandongoingintheLaboratoryofPhase-ChangeandInterfacialPhenomenaatTsinghuaUniversity,oninterfacialbehaviorofvaporbubblesandinterfacialtransportphenomenaduringliquidnucleationboiling.Fromasequenceofexperimentalinvestigations,somenewphenomena,particularly,thevisuallyobservedinterfacialtransportphenomenaorprocessesincludingjet-likeflows,bubbleinteractionandspatialscaleeffect,weredescribedinthisarticle.Theinterfacialeffectsandtransportphenomenaassociatedwithsurfacetensiongradientscausedbytemperatureandconcentrationvariationsweretheoreticallyanalyzedtorevealthemarkedinfluenceonbubbleinterfacialshapeanddynamicbehavior,thebubbledynamicsincludingnucleation,bubblemotionandcoalescence.Severaltheoreticalmodelsandmethodswereproposedtodescribethedynamiccharacteristicsandexplainthephysicsofinterfacialphenomena/processes.Thespe
简介:Engineeringapplicationdomainsneeddatabasemanagementsystemstosupplythemwithagoodmeansofmodeling,ahighdataaccessefficiencyandalanguageinterfacewithstrongfunctionality.Thispaperpresentsasemantichypergraphmodelbasedonrelations,inordertoexpressmany-to-manyrelationsamongobjectsbelongingtodifferentsemanticclassesinengineeringapplications.Amanagementmechanismexpressedbythemodelandthebasicdataofengineeringdatabasesaremanagedinmainmemory.Especially,differentobjectsarelinkedbydifferentkindsofsemanticsdefinedbyusers,thereforethetableswap,therecordswapandsomeunnecessaryexaminationsarreducedandtheaccessefficiencyoftheengineeringdataisincreased.Clanguageinterfacethatincludessomegenericandspecialfunctionalityisproposedforcloserconnectionwithapplicationprograms.
简介:SomeofthemainprogressontheinvestigationofthemechanismofthewaveformationinexplosiveweldingattheInstituteofMechanicsissummarizedandotters’previousworksarere-viewed.OursystematicexperimentsandanalysisdonotsubstantiatethetheoryofwaveformationbasedonKarmanvortex-streetanalogyorHelmholtzinstability.Onthecontrary,theyshowthatmateri-alstrengthinsensitivetostrainrateplaysanimportantrole.Asimplehydro-plasticmodelispresentedtoexplainthemainfeaturesregardingtheinterracialwaveformationandtoestimatethemagnitudeofwavelength.Theresultisinbroadagreementwithexperiment.
简介:ApersistentinterfacepackageHepMC_ContribisdevelopedfortheC++MonteCarloeventclasslibraryHepMC.HepMC_Contribpackageprovidesaninterfacetouserprogramsforstoring/retrievingHepMCeventrecordsto/fromObjectivitydatabase,HepMC_ContribisdesignedtoutilisethestandardfeaturesofHepODBMSasmuchaspossible,Twotypesofimplementationofclassdesignweretestedtoreducethesizeofthedatabase,Atlast,theperformanceofthepackageisdiscussedintermsofthesizeofdatabase.
简介:Asmall-anglex-rayscattering(SAXS)techniqueusingsynchrotronradiationasthex-raysourcehasbeenemployedtocharacterizethemicrostructureofmesoporoussilicapreparedbyone-pottemplate-directedsynthesismethodology.ThescatteringofpuresilicaagreedwithPorod’slaw.thescatteringoforganomodifiedmesoporoussilicashowedanegativedeviationfromPorod’slaw,suggestingthataninterfaciallayerexistsbetweentheporesandsilicamatrix.Itwastheorganicgroupscomprisingtheinterface,asshownby^29Sicross-polarizationmagic-anglespinningnuclearmagneticresonanceimaging(^29SicpMAS/NMR)andFouriertransforminfraredspectroscopy(FTIR),thatcausedthisnegativedeviationofSAXSintensityfromPorod’slaw,andtheaveragethichnessoftheinterfaciallayercouldbededucedfromthisnegativedeviation.Copyright2001johnWileyandSons,Ltd.
简介:第四代(4G)无线通讯系统被部署了或不久在许多国家被部署。与无线移动设备和服务的爆炸,然而,仍然有一些挑战,不能甚至被4G提供,例如光谱危机和内部房间的干扰。电信操作符转弯了承诺自己分享可得到的资源,包括硬件和软件资源。因此与相互的基础结构,‘integration’应该被加亮,特别在第五代(5G)被期望到的无线系统超过2020被部署。在文章的作者建议了潜在的细胞的体系结构,并且讨论了内部操作员的收音机接口为5G的基于的同步(肋骨)无线通讯系统。内部操作员的肋骨和典型情形的一个计划,与相应干扰的分析一起被给。分享的参数,内部操作员的肋骨的发信号的协作和为肋骨的信号(RS)设计也是的听的引用的分析执行了。
简介:从本质上讲,非唯一总是是我们在倒置过程面对的问题,并且它被等价的现象在地,在观察的错误、分离、有限的特征和另外的来源的影响里引起。许多作者在这块地里做了大量研究以便得到更可靠的结果,并且联合倒置是数据的不同类型被联合同时或顺序导出某些信息的繁荣的。这些研究之一是优先的信息例如地质,钻并且地震数据将被用作限制,当倒置过程能被控制时。在这篇文章,我们旨在更好获得三维的密度对比接口使用一个新方法。集成于倒置的这个优先的地震数据能在意味着在地震地点的莫霍接口的深度将被限制的过程起一个抑制作用。它能因此提供可信的结果。以便测试它的效果,这个程序在东北中国在莫霍几何学的领域examplederivation被使用。
简介:Inthispaper,theminimaldissipationlocaldiscontinuousGalerkinmethodisstudiedtosolvetheellipticinterfaceproblemsintwo-dimensionaldomains.Theinterfacemaybearbitrarysmoothcurves.ItisshownthattheerrorestimatesinL2-normforthesolutionandthefluxareO(h2|logh|)andO(h|logh|^l/2),respectively.Innumericalexperiments,thesuccessivesubstitutioniterativemethodsareusedtosolvetheLDGschemes.Numericalresultsverifytheefficiencvandaccuracvofthemethod.