简介：Thispaperdealswiththeissueofprioritysettinginhealthcareunderuncertaintiesabouttheseverityoftheillnessandtheeffectivenessofmedicaltreatment.Weexaminetheeffectofadiseaseuncertainty(atreatmentuncertainty)ontheallocationofhealthcareresourcesinthepresenceofatreatmentrisk(adiseaserisk)andidentifypreferenceconditionsunderwhichthesocialplannerallocatesmoreresourcestohigherriskpopulation.Weallowforthesimultaneouspresenceoftworisksandinvestigatethejointeffectoftwo-sourceuncertaintiesonhealthcareallocationwhenthetworisksareeithersmallorpositivelyquadrantdependent.Theeffectofinequalityaversiononhealthcareallocationisalsoanalyzedbyintroducinganequityweightingfunction.Ourworkextendsthepreviousmodelofhealthcareprioritytotwo-riskframeworkandprovidesnewinsightsintotheproblemofhealthcaredecisionmakingunderuncertainty.

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简介：Asanadvancedprocessdetectiontechnology,electricalimpedancetomography(EIT)haswideapplicationprospectsandadvantagesinmedicalimagingdiagnosis.However,aseriesofissuesneedtobeaddressedbeforeapplyingEITforbedsidemonitoring.Medicaldiagnosisandbedsidemonitoringaredynamicmeasuringprocess,wherethepositionsofmeasuringelectrodesandtheshapeofthedetectedfieldarechangingdynamical.Duetotheinabilitytocopewiththechangeableelectrodepositionsandvariousdynamicfields,existingEITsystemsaremainlyusedforindustrialdetectioninconditionofstaticmeasurementandvisualization.Inthispaper,weinvestigatethedynamicmeasurementandvisualizationofhumanbreastinEITfield,describethedesignofthemeasuringsensorsystem,andexpoundthemeasuringprinciple.Themaincomponentofthehardwaresystemisabuiltinservoelectricalresistancetomographysensorwithcapacitiveslidingrod,whichcanadapttothecrowdofdifferentchestcontourandthechangeofchestshapeinthedynamicprocessofbreathing.Thecorrespondingmeasuringprincipleisextractingallreal-timepositionsofmeasuringelectrodes,thenobtainingthedynamicboundary,finallydividingthedetectionfieldrapidly.Experimentalresultsconfirmedthattheproposedsystemcanobtainreal-timelocationofboundarysensoranddynamicallysolvetheproblemofarbitrary-shapeboundarymeasurement.Theimagingresultsvalidatetheavailabilityofdesignedsensorsystemandtheeffectivenessofthecorrespondingmeasuringprinciple.

简介：Thispaperconstructedportfoliosaccordingtothegrowthratesandtheirstabilityoffirm'stotalstockholders'equitypershareandnetincomepershare,usingallthefirms'informationofShanghaiA-sharemarket.Wefoundthatthemarketexhibitssomeoverreactiontothegrowthraieoffirm'snetincomepershare,andisn'tsensitivetothestabilityoffirm'sgrowthrates.

简介：传染疾病爆发在过去多次发生了并且是更可能的以后发生。在这份报纸，分配并且安排的问题限制了多重、相同或非相同，当有几时，在平行采用的资源感染了区域，被考虑。一个启发式的算法，基于Shihs(1974)(2010)和Pappis和Rachaniotis算法，作为答案方法论被建议。在特定的疾病爆发的上下文实现建议方法论的一个数字例子，也就是流行性感冒，被介绍。建议方法论能具有到那些起草的意外事故计划和保健政策议程的重要价值。

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简介：ThemainpurposeofthispaperistostudyaproblemrelatedtoGolomb'sconjectures,andgiveaninterestingasymptoticformula.

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简介：ＡＮＥＦＦＩＣＩＮＴＩＭＰＬＥＭＥＮＴＡＴＩＯＮＯＦＭＥＲＲＩＬＬ＇ＳＭＥＴＨＯＤＹＡＮＧＢｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｎａｇｅｍｅｎｔＥｎｇｉｎｅｅｒｉｎｇＨａｒｂｉｎＥｎｇｉｎｅｅｒｉｎｇＵｎｉｖｅｒｓｉｔｙＨａｒｂｉｎ１５０００１）Ａｂ...

简介：Let■Ω=Γ=Γ1+Γ2（seeFig.1）,meas（Γ1）>0,V={v|v∈H1（Ω）,v|Γ1=0},andV0={ω|Δω=hinΩ,ω|Γ=0,（?）h∈V}.LetV0′=thedualspaceofV0,a（u,v）=∫Ω▽u·▽Δvdx,andF（v）=∫Ωfvdx+∫Γ2g1Δvds-∫Γg2（?）ds,f∈V′0,g1∈H-（1/2）（Γ2）,g2∈H-（3/2）（Γ）.Considerthevariationalproblem:findu∈Vsuchthata（u,v）=F（v）,（?）v∈V0.（1）UsingTartar’slemma,weprovethatforproblem（1）thereexistsauniqueu∈Vsatisfying■

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简介：Inthiseraofadata-drivensociety,usefuldata(BigData)isoftenunintentionallyignoredduetolackofconvenienttoolsandexpensivesoftware.Forexample,weblogfilescanbeusedtoidentifyexplicitinformationofbrowsingpatternswhenusersaccesswebsites.Somehiddeninformation,however,cannotbedirectlyderivedfromthelogfiles.Wemayneedexternalresourcestodiscovermoreknowledgefrombrowsingpatterns.Thepurposeofthisstudyistoinvestigatetheapplicationofwebusageminingbasedonweblogfiles.Theoutcomeofthisstudysetsfurtherdirectionsofthisinvestigationonwhatandhowimplicitinformationembeddedinlogfilescanbeefficientlyandeffectivelyextracted.Furtherworkinvolvescombiningtheuseofsocialmediadatatoimprovebusinessdecisionquality.

简介：ＷＵ－ＲＩＴＴ＇ＳＭＥＴＨＯＤＦＯＲＮＯＮＬＩＮＥＡＲＣＯＮＴＲＯＬＳＹＳＴＥＭＳ￥ＬＩＳｈｕｒｏｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＳｙｓｔｅｍｓＳｃｉｅｎｃｅ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｂｅｉｊｉｎｇ１０００８０，Ｃｈｉｎａ）Ａｂｓｔｒａｃｔ：Ｔｈｉ...

简介：TheanalysisandevaluationofanactualportsystemcontainingRdifferentship’skindsandNsubsystemseachofwhichconsistsofM.(i=1,2,…,N)portsarederived.TheexternalarrivalsofshipstothesystemcomefromRdifferentPoissonsourcesandtheinterarrivalstothequeueofeachportofasubsystemaredeterminedaccordingtoconditionprobabilities.EachporthasmultipleberthswhoseservicetimesaredistributedaccordingtoErlangprobabilitydistributionfunctions.EachportofasubsystemhasRinfinitecapacitybuffersforstoringshipsinterarrived.Thismethodprovidesagoodapproximationprocedureforobtainingsystemperfor-mancemeasuressuchaswaitingtimesofships,averagequeuelengths,etc.Optimumportcapacitycanthusbeevaluatedbyusingthisanalysis.Asimulationisalsopresentedtotestthisapproximateanalysis,andagoodagreementisobserved.Thismodelshallbeusedintheplanningofseveralactualportsystems.Throughtheapplicationofthismodel,itispossibletoanalyzeandevaluateperformancesofthesystems.

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简介：这份报纸学习毁灭的概率的完全的monotonicity在古典风险模型和古典风险为那建模被散开使不安。作为一个副产品，作者由于Loeffen(2008)在最佳的红利问题上把一个其他的证明给结果。