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169 个结果
  • 简介:Texturepatternmappingisoneofthemostimportanttechniquesforhighqualityimagesyn-thesis.Itcanlargelyenhancethevisualrichnessofraster-scanimages.Inthispaperispresentedanewmethodofmappingplanartexturepatternontobeta-splinecurvedsurfaces——bilinearmappingmethodwhichcanmapplanartexturepatternontocurvedsurfaceswithlessdistortion,andalsocanfulfillthegeometrictransformationofthetexturepatternonthecurvedsurfacesbyoperatingthepatternwin-dow.ItisvaluabletobothCAD/CAMinartisticfieldandcomputergraphics.

  • 标签: TEXTURE PATTERN MAPPING MAPPING function Beta-spline
  • 简介:Inthispaper,wepresentanecessaryandsufficientconditionthattheperturbedmonomialmappingisergodiconasphereSp^-1(1),whichisinacombinationwithAnashin'searlierresultsabouttheperturbedmonomialergodicmappingsonasphereSp^-r(1),r>1,completelysolveaproblemposedbyA.Khrennikovabouttheergodicityofaperturbedmonomialmappingonasphere.

  • 标签: PERTURBED monomial MAPPING ERGODIC P-ADIC INTEGERS
  • 简介:从月亮的采样地点(总计的46sampling地点)的ClementineUVVIS和NIR数据被处理并且过去常精制LeMoueic等的铁决心方法(2000,2002)。我们发现大约21个采样地点是对LeMoueic等不合适“s光谱参数(”斜坡“并且”深度1'')因为他们的1500nm过滤器不能被用作光谱参数“右肩膀并且评估1-μm的深度吸收特征精确地。Weused精制方法的25个采样地点由LeMoueic等开发了的剩余的。(2000,2002)并且获得了我们FeO内容决心的自己的方程。我们测试了我们的自己的方程,和结果是satifactory。在我们的工作,我们也在我们Chang的自己的数据集的科学应用程序获得了一些有用经验“E-1使命。

  • 标签: 月球 光谱 氧化铁 映射法 细分
  • 简介:这份报纸为接近介绍一个合成重复计划在一致地光滑的Banach空格和分别地有一张弱连续的两重性地图的reflexiveBanach空格的框架的nonexpansivemappings的fixedpoint。我们建立合成重复计划的strongconvergence。结果Kim,徐,Wittmann和一些其它改进并且延长那些。

  • 标签: 分扩张映射 强收敛定理 迭代概形 逼近
  • 简介:让S是有一个有限区域的夸张Riemann表面。让GS的盖住的组对夸张飞机H正在起作用。在这份报纸,作者在印射的班组学习一些代数学的关系为=S\{一个点}。在二Dehn扭曲的产品和印射班的产品之间的唯一的可能的关系由G的二个寓言的元素决定了的作者表演是减少的灯笼关系。作为后果,J.D.麦卡锡提出的一个问题的一个部分答案被获得。

  • 标签: 关系映射 RIEMANN 元宵 代数关系 S映射 抛物线
  • 简介:AbstractBackground:Viral pathogens belonging to the order Bunyavirales pose a continuous background threat to global health, but the fact remains that they are usually neglected and their distribution is still ambiguously known. We aim to map the geographical distribution of Bunyavirales viruses and assess the environmental suitability and transmission risk of major Bunyavirales viruses in China.Methods:We assembled data on all Bunyavirales viruses detected in humans, animals and vectors from multiple sources, to update distribution maps of them across China. In addition, we predicted environmental suitability at the 10 km × 10 km pixel level by applying boosted regression tree models for two important Bunyavirales viruses, including Crimean-Congo hemorrhagic fever virus (CCHFV) and Rift Valley fever virus (RVFV). Based on model-projected risks and air travel volume, the imported risk of RVFV was also estimated from its endemic areas to the cities in China.Results:Here we mapped all 89 species of Bunyavirales viruses in China from January 1951 to June 2021. Nineteen viruses were shown to infect humans, including ten species first reported as human infections. A total of 447,848 cases infected with Bunyavirales viruses were reported, and hantaviruses, Dabie bandavirus and Crimean-Congo hemorrhagic fever virus (CCHFV) had the severest disease burden. Model-predicted maps showed that Xinjiang and southwestern Yunnan had the highest environmental suitability for CCHFV occurrence, mainly related to Hyalomma asiaticum presence, while southern China had the highest environmental suitability for Rift Valley fever virus (RVFV) transmission all year round, mainly driven by livestock density, mean precipitation in the previous month. We further identified three cities including Guangzhou, Beijing and Shanghai, with the highest imported risk of RVFV potentially from Egypt, South Africa, Saudi Arabia and Kenya.Conclusions:A variety of Bunyavirales viruses are widely distributed in China, and the two major neglected Bunyavirales viruses including CCHFV and RVFV, both have the potential for outbreaks in local areas of China. Our study can help to promote the understanding of risk distribution and disease burden of Bunyavirales viruses in China, and the risk maps of CCHFV and RVFV occurrence are crucial to the targeted surveillance and control, especially in seasons and locations at high risk.

  • 标签: Bunyavirales Crimean-Congo hemorrhagic fever virus Rift Valley fever virus Ecological niche model Risk assessment
  • 简介:在9月号中.我们谈了谈用于模拟全局光照的PRT技术,与之相对应的是处理微小细节的各种凹凸贴图(BumpMapping)技巧。

  • 标签: MAPPING 贴图 RT技术 全局光照
  • 简介:ThefeasibilityofERSSARTandemdataformappingforestandnon-forestcoverinChinawasevaluatedoverZengchengCountyintheSouthChina.Anaccuracyof75%hasbeenachieved.Then,theMACFERST(MappingChinaForestwithERSSARTandemdata)projectstartedbytheMinistryofScienceandTechnology(MOST)ofChinaandtheEuropeanSpaceAgency(ESA)in1999.Thegenerationofalarge-scaleforestmaprequiressolvingproblemssuchasthegeoreferencingandmosaickingofverylongimagestripscov...

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  • 简介:Asimpleinstrumentforthereal-timemeasurementofalgaeconcentrationandmappingdescribed.Theinstrumentusesapulsedshortarcxenonflashlampastheexcitedlightsources.Boththeexcitinglightandthefluorescencefromalgaechlorophyllaretransmittedalongafiberbundle.Themeasurementsensivitivityisanalyzedandtheexperimentresultisgiven.Theinstrumentispracticaltoin-situmeasurementatsea.

  • 标签: 光纤荧光计 海藻浓度 时实测量 叶绿素α
  • 简介:T1mappingusingcardiovascularmagneticresonance(CMR)introducesnoveltechniquesformyocardialtissuecharacterizationtodetectandquantifydiseaseprocessesoccurringatthemicroscopiclevel.EventhoughT1mappinghaslimitedspatialresolution,cellularandmolecularchangesoccurringwithineachvoxelcanaffecttheaggregateT1signalrenderingthemquantifiable.TheestimatedT1-basedparametersquantifiedona“map”demonstratethespatiallocalizationofthesechangeswherebyeachpixelexpressesthequantitativevalueofthatparameter.Thisquantificationpermitsdetectionofdiffusediseaseevenifitisnotdirectlyvisible.Ratherthanrelyingonnonspecificfunctionalmeasures,T1mappingfocusesonintrinsicchangesofmyocardialcompositionthatadvancesunderstandingaboutspecificdiseasepathways.Thesechangesinmyocardialtissuecompositioninformdiagnosisandprognosis.T1mappingencompassestwokeyparameters:native(i.e.,precontrast)T1andextracellularvolumefraction(ECV)derivedfromadditionalpostcontrastT1andbloodT1measurements.Theseadvancesintroducenewtoolstodetectfocalanddiffusemyocardialderangementsoccurringincardiacdiseasethatcanbeotherwisedifficulttodetect.T1andECVmappingfosterprecisionmedicineandpersonalizedcare,promisingtoimprovepatientoutcomesthroughtargetedtherapy.CapitalizingontheopportunitiesintroducedbyT1mappingandECVrequiresfurtherinvestigation.

  • 标签: T1 MAPPING EXTRACELLULAR volume MYOCARDIAL fi
  • 简介:AbstractThe demand for acquiring different languages has increased with increasing globalization. However, knowledge of the modification of the new language in the neural language network remains insufficient. Although many details of language function have been detected based on the awake intra-operative mapping results, the language neural network of the bilingual or multilingual remains unclear, which raises difficulties in clinical practice to preserve patients’ full language ability in neurosurgery. In this review, we present a summary of the current findings regarding the structure of the language network and its evolution as the number of acquired languages increased in glioma patients. We then discuss a new insight into the awake intra-operative mapping protocol to reduce surgical risks during the preservation of language function in multilingual patients with glioma.

  • 标签: Glioma Intra-operative mapping Language function Language protection
  • 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:损害模仿条纹异种,指定了为lms1(损害模仿条纹1),从60CoY放射的M2子孙被获得对待的装饰用的梨树米饭变化Jiahua1。lms1异种越过整个生长和发展阶段显示了繁殖类型损害。当在高温度下面成长时,生理学和组织化学分析证明异种展出了白条纹的显型(30潭敤吗?

  • 标签: 遗传分析 突变体 病变 模仿 映射 水稻
  • 简介:啮齿类动物是散布了瘟疫,和Spermophilusdauricus的主要主人动物(S。dauricus)是在诺思中国的最普通的啮齿类动物。在这研究,啮齿类动物密度调查从4月在瓷器吉林省被执行到2005年8月。我和semivariogram弄弯的Morans被用来调查采样数据的空间分发特征。我们发现空间自相关索引低、失败产生一条有意义的semivariogram曲线。在这种情况中,通常使用内插器,例如kriging,不对在学习区域上印射密度合适。然而,三明治模型,基于空间成层的异质,能被用于我们的数据。我们的结果证明土壤和土地使用的类型显著地影响了啮齿类动物密度的分发,并且这些变量的交互效果独自比每个变量的强壮得多。估计三明治的啮齿类动物密度地图证明那啮齿类动物密度在吉林省从东南增加了到西北。最后,用三明治模型的啮齿类动物密度调查的一个框架被介绍。

  • 标签: 啮齿类动物 三明治 吉林省 密度 中国 空间自相关
  • 简介:Thetransformationmethodtocontrolwaveshasreceivedwidespreadattentioninelectromagnetismandacoustics.However,thismachineryisnotdirectlyapplicabletothecontrolofelasticwaves,becauseithasbeenshownthattheNavier’sequationdoesnotusuallyretainitsformundercoordinatetransformation.Inthisletter,weprovetheforminvarianceoftheNavier’sequationundertheconformalmappingbasedontheHelmholtzdecompositionmethod.Theneededmaterialparametersareprovidedtomanipulateelasticwaves.Thevalidityofthisapproachisconfirmedbyanactivestealthdevicewhichcandisguisethesignalsourcebychangingitsposition.Experimentalverificationsandpotentialapplicationsmaybeexpectedinnondestructivetesting,structuralseismicdesignandotherfields.

  • 标签: 声学控制 保角映射 弹性波 Navier方程 波形 结构抗震设计