简介:Texturepatternmappingisoneofthemostimportanttechniquesforhighqualityimagesyn-thesis.Itcanlargelyenhancethevisualrichnessofraster-scanimages.Inthispaperispresentedanewmethodofmappingplanartexturepatternontobeta-splinecurvedsurfaces——bilinearmappingmethodwhichcanmapplanartexturepatternontocurvedsurfaceswithlessdistortion,andalsocanfulfillthegeometrictransformationofthetexturepatternonthecurvedsurfacesbyoperatingthepatternwin-dow.ItisvaluabletobothCAD/CAMinartisticfieldandcomputergraphics.
简介:Inthispaper,wepresentanecessaryandsufficientconditionthattheperturbedmonomialmappingisergodiconasphereSp^-1(1),whichisinacombinationwithAnashin'searlierresultsabouttheperturbedmonomialergodicmappingsonasphereSp^-r(1),r>1,completelysolveaproblemposedbyA.Khrennikovabouttheergodicityofaperturbedmonomialmappingonasphere.
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。
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.
简介:ThefeasibilityofERSSARTandemdataformappingforestandnon-forestcoverinChinawasevaluatedoverZengchengCountyintheSouthChina.Anaccuracyof75%hasbeenachieved.Then,theMACFERST(MappingChinaForestwithERSSARTandemdata)projectstartedbytheMinistryofScienceandTechnology(MOST)ofChinaandtheEuropeanSpaceAgency(ESA)in1999.Thegenerationofalarge-scaleforestmaprequiressolvingproblemssuchasthegeoreferencingandmosaickingofverylongimagestripscov...
简介:Asimpleinstrumentforthereal-timemeasurementofalgaeconcentrationandmappingdescribed.Theinstrumentusesapulsedshortarcxenonflashlampastheexcitedlightsources.Boththeexcitinglightandthefluorescencefromalgaechlorophyllaretransmittedalongafiberbundle.Themeasurementsensivitivityisanalyzedandtheexperimentresultisgiven.Theinstrumentispracticaltoin-situmeasurementatsea.
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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.
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.
简介:Wepresentamethodthatcombinesperformance-drivenmethodwithsegmented3Dblendshapemodelstoanimateaface.Firstwepreparekeysampleexamplesandcorrespondingkeytargetexamples.Nextwesegmentthewholefaceintotworegions,foreachregionwereducedimensionalityofsourceexamplesusingPACintoabstractspacewhichisdefinedbytruncatedPCAeigenvectors.Thenforeachexamplewefixthecardinalbasefunction,whichcandeterminetheweightofthetargetexample.Finally,intheanimationstagewecomputetheweightofeachexampleforeachframeandaddtheweighteddisplacementvectorsofeachregiononthegeneralfacemodel.
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。
简介:Thetransformationmethodtocontrolwaveshasreceivedwidespreadattentioninelectromagnetismandacoustics.However,thismachineryisnotdirectlyapplicabletothecontrolofelasticwaves,becauseithasbeenshownthattheNavier’sequationdoesnotusuallyretainitsformundercoordinatetransformation.Inthisletter,weprovetheforminvarianceoftheNavier’sequationundertheconformalmappingbasedontheHelmholtzdecompositionmethod.Theneededmaterialparametersareprovidedtomanipulateelasticwaves.Thevalidityofthisapproachisconfirmedbyanactivestealthdevicewhichcandisguisethesignalsourcebychangingitsposition.Experimentalverificationsandpotentialapplicationsmaybeexpectedinnondestructivetesting,structuralseismicdesignandotherfields.