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27 个结果
  • 简介:Givennpropositionalvariables,letKn(i,j),0≤i≤j≤n,betheset(ordisjunction)ofallconjunctionsofiliteralsofwhichexactlyjliteralsarenegative.DunhamandWangconjecturedthatitmayrequireexponentialtimetodecidethateverydisjunctionKn(i,j)isnotvalidbytheresolutionmetho.Thispapergivesaproofoftheconjectureandthenexhibitsanewcounterexampletothefeasibilityoftheresolutionorconsensusmethod.

  • 标签: MP问题 可行性算法 分解方法
  • 简介:1SpermatorrheaApatient,16yearsold,sufferedfromsper-matorrheaforoveroneyear.Atthebeginning,ithappenedonceseveraldays,andrecentlyithappenedonceeveryotherdayoreverynight,accompaniedbyawitheredcomplexion,sorenessandweaknessinthelowerbackandlegs,poorsleep,poormemory,aredtonguetipwiththintonguecoating,andathreadyand

  • 标签: 针灸疗法 勃起功能障碍 银屑病 系统性红斑狼疮
  • 简介:Wepresentamethodthatcombinesperformance-drivenmethodwithsegmented3Dblendshapemodelstoanimateaface.Firstwepreparekeysampleexamplesandcorrespondingkeytargetexamples.Nextwesegmentthewholefaceintotworegions,foreachregionwereducedimensionalityofsourceexamplesusingPACintoabstractspacewhichisdefinedbytruncatedPCAeigenvectors.Thenforeachexamplewefixthecardinalbasefunction,whichcandeterminetheweightofthetargetexample.Finally,intheanimationstagewecomputetheweightofeachexampleforeachframeandaddtheweighteddisplacementvectorsofeachregiononthegeneralfacemodel.

  • 标签: 性能驱动 表达图谱 基础 分段 融合模型 三维形状
  • 简介:Thetransitionalspanisaspecialenvironmentfordeposits.Takingpeat,oil-gas,metallicdepositsasexamples,thispaperdiscussesthespatial-temporaltransitionalcharacteristicsofmineralizationintransitionalregions,pointsouttheimportanceofthemineralizationintransitionspans,andanalysestheirdynamicsfinally.

  • 标签: TRANSITION SPANS ORE formation examples DYNAMICS
  • 简介:ThispaperproposesanapproachtosynthesizefunctionalprogramsofBackus'FPsystem^[1,2]frominput/outputinstances.Basedonatheoryoforthogonalexpansionofprograms^3[,4],thetaskofprogramsynthesisisexpressedinprogramequations,andfulfilledbysolvingthemaccordingtotheknowledgeabouttheequivalencebetweenprograms.Somegeneralknowledgeofsolvingprogramequationswithanumberofexamplesaregiveninthepaper.

  • 标签: 程序设计 程序合成 程序方程式
  • 简介:Amajorroleofecologicalriskassessment(ERA)hasbeentoprovidescientificguidanceonwhetherafuturehumanactivitywillcauseecologicalharm,includingsuchactivitiesasreleaseofageneticallymodifiedorganism(GMO),exoticspecies,orchemicalpollutantintotheenvironment.Thisrequiresthedeterminationofthelikelihoodsthattheactivity:wouldcauseaharm,andwouldnotcauseaharm.Inthefirstcase,thefocusisondemonstratingthepresenceofaharmanddevelopingappropriatemanagementtomitigatesuchharm.Thisisusuallyevaluatedusingstandardhypothesisanalysis.Inthesecondcase,thefocusisondemonstratingtheabsenceofaharmandsupportingadecisionofbiosafety.WhilemostERAresearchershavefocusedonfindingpresenceofharm,andsomehavewronglyassociatedthelackofdetectionofharmwithbiosafety,anovelapproachinERAwouldbetofocusondemonstratingdirectlythesafetyoftheactivity.Although,someresearchershavesuggestedthatretrospectivepoweranalysiscanbeusedtoinferabsenceofharm,itactuallyprovidesinaccurateinformationaboutbiosafety.Adecisionofbiosafetycanonlybesupportedinastatisticallysoundmannerbyequivalencetests,describedhere.Usinga20%ecologicalequivalencestandardinGMOexamples,weillustratedtheuseofequivalencetestsfortwo-sampleswithnormalorbinomialdataandmulti-samplenormaldata,andprovidedaspreadsheetcalculatorforeach.Insixoftheeightexamples,theeffectsofCrytoxinsonanon-targetorganismwereequivalenttoacontrol,supportingadecisionofbiosafety.Theseexamplesalsoshowedthatdemonstrationofequivalencedoesnotrequirelargesamplesizes.Althoughmorerelevantecologicalequivalencestandardsshouldbedevelopedtoenableequivalenceteststobecomethemainmethodtosupportbiosafetydecisionmaking,weadvocatetheiruseforevaluatingbiosafetyfornon-targetorganismsbecauseoftheirdirectandaccurateinferenceregardingsafety.

  • 标签: 安全决策 环境生物 等价 测试 生态危害 转基因生物
  • 简介:作者调查Prandtl边界层理论能严厉地为被验证的边界层的一些例子。所有为与各种各样的Dirichlet边界条件(指定速度)装备的牛顿的液体与不可压缩的海军司烧方程他们被联系。这些例子包括一个家庭(非线性的3D)飞机平行流动,一个家庭(非线性)有在边界的一致注射和吸的平行管子流动,以及流动。我们也在建立Prandtl类型理论的有效性识别关键成分,即,一光谱海军司烧系统的近似答案上的限制由联合Prandtl类型系统的inviscid答案和解决方案构造了。这是除与Prandtl类型系统的well-posedness有关的著名问题以外的一个另外的困难。看起来主要阻塞到确认光谱限制状况是边界层的可能的分离。这些例子的一个普通主题也经由在边界压制速度正常到边界或由注射和吸以便是边界层的分离的抑制光谱限制能被验证。一条元定理然后被介绍它盖住这里考虑的所有盒子。

  • 标签: STOKES方程 边界层理论 不可压缩 DIRICHLET边界条件 kes系统 边界层分离
  • 简介:3D可视化技术是与传统的地震数据解释技术完全不同的一种新地震解释技术。这个方法作为一个单位拿地质的身体或兴趣的任何3D区域并且集成使3D成为视觉解释的身体的点,线,和飞机。这种技术能与连贯技术是综合的解释复杂差错。空间领域自动地平线跟踪能精确地决定结构的特征。目标雕刻能用倒置数据决定空间尺寸和观点3D岩性学身体的深度程度。我在Qinan的西方的斜坡在Dagang油矿和微妙的水库的预言的Guanxi区域把这种技术用于复杂的块结构的解释与好结果下垂。这研究显示视觉解释技术能广泛地并且有效地在油地开发并且到被使用改进探索成功比率。

  • 标签: 三维可视化 油田 地震勘探 数据解释
  • 简介:IGUANA(InteractiveGraphicsforUserANAlysis)isaC++toolkitfordevelopinggraphicaluserinterfacesandhighperformance2-Dand3-Dgraphicsapplications,suchasdatabrowsersanddetectorandeventvisualisationprograms.TheIGUANAstrategyistousefreelyavailablesoftware(e.g.Qt,SoQt,OpenInventor,OpenGL,HEPVis)andpackageandextendittoprovideageneral-purposeandexperiment-independenttoolkit.WedescribetheevaluationandchoicesofpubliclyavailableGUI/graphicssoftwareandtheadditionalfunctionalitycurrentlyprovidedbyIGUANA.WedemonstratetheuseofIGUANAwithseveralapplicationsbuiltforCMSandD0.

  • 标签: 计算机图形学 交互图形 CMS DO CMS
  • 简介:当前,大多数MT(magnetotelluric)数据仍然在稀少的调查线上被收集并且因为域工作费用,解释了使用2D倒置方法,工作区域环境等等。然而,有从总是导致错误地地质的解释的3Dgeoelectrical结构的MT数据的一些2D解释限制。在这份报纸,我们使用了3D倒置方法解释MT稀少的线数据。在模型测试,稀少的行数据是从一个测试模型产生并且处理了使用3D的MT完整的信息数据结合坡度倒置代码。倒置结果证明这个倒置方法合理、有效。同时,我们证明为有不同元素参数的倒置结果,由阻抗张肌数据和tipper数据的联合倒置的结果对测试模型更精确、更靠近。

  • 标签: MT数据 三维反演 稀疏线 反演方法 合成 查线
  • 简介:IgnominyisatooldevelopedintheCMSIGUANAprojecttoanalysethestructureofsoftwaresystems.Itsprimarycomponentisadependencyscannerthatdistillsinformationintohuman-usableforms.Italsoincludesseveraltoolstovisualisethecollecteddataintheformofgraphicalviewsandnumericalmetrics.Ignominywasdesignedtoadapttoalmostanyreasonablestructure,andithasbeenusedtoanalyseseverallargeprojects.TheoriginalpurposeofIgnominywastohelpusbetterensurethequalityofourownsoftware,andinparticularwarnusaboutpossiblestructurealproblemsearlyon.Asapartofthisactivityitisnowusedasastandardpartofourreleaseprocedure,wealsouseittoevaluateandstudythequalityofexternalpackagesweplantomakeuseof.WedescribewhatIgnominycanfindout,andhowifcanbeusedtoivsualiseandassessasoftwarestructure.Wealsodiscusstheinherentproblemsoftheanalysisaswellasthedifferentapproachestomodularitythetoolmakesquiteevident.ThefocusistheillustrationoftheseissuesthroughtheanalysisresultsforseveralsizableHEPsoftwreprojects.

  • 标签: 软件工具 Ignoming 矩阵分析