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简介：Weintroduceanovelmethodtoaccuratelyextracttheopticalparametersinterahertzreflectionimaging.Ourmethodbuildsonstandardself-referencingmethodsusingthereflectedsignalfromthebottomoftheimagingwindowmaterialtofurthercompensatefortime-dependentsystemfluctuationsandposition-dependentvariationinthewindowthickness.Ourproposedmethodnotonlyimprovestheaccuracy,butalsosimplifiestheimagingprocedureandreducesmeasurementtimes.

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简介：ThebiggestmassmigrationinhumanhistoryiscurrentlyunderwayinChina.Populationmovementandmigrationplayaleadingroleinthetransformationofurbanandruralpopulationstructureandareaffectingtheevolutionofbothpopulationsizeandstructureofvariousregions.Togranturbanresidencytomigrantsisatopprior-

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简介：(L减水乳酸)(PLLA)Poly，/pristine蛭石nanocomposites被准备由融化掺双轴的extruder，和热、机械的性质的蛭石分散状态的详细信息和蛭石的效果系统地被学习。当装载内容不超过3wt%时，结果证明在矩阵的蛭石的分散相当好。太古的蛭石能显然在nonisothermal结晶化期间改进融化结晶化温度。两结晶化时间跨度和PLLA的spherulitic尺寸由提高PLLA的主要成核在等温的结晶化状况下面与蛭石的增加的数量减少。并且增加的蛭石能也改进张力的模量和PLLA的Izod影响力量。为PLLA上的蛭石的起核心作用的效果的内在的机制被建议是在蛭石和PLLA之间的取向附生的结晶化和特定的相互作用。

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简介：Themagneticimprovisedexplosivedevices(IEDs),alsocommonlyknownasatypeofastickybomb,issimplyconstructeddevicesyetverylethal.Thispaperputsforwardtheideaofanelectroniccompassthatiscapableofsensingthechangeofamagneticfieldgeneratedbyamagnetandtranslatingitintointerpretabledata,whichcouldactasthebaseforthefurtherstudiesandassistindevelopingagreenerautomatedsystemfordetectingthisdevice.Theelectroniccompassisspecificallychosenforreducingpowerconsumptionofsystemsinadditiontothefactthatitisavailableatalowcost.

简介：Endoscopicultrasonography-guidedfine-needleaspiration（EUS-FNA）hasbeenappliedtopancreaticobiliarylesionssincethe1990sandisinwidespreadusethroughouttheworldtoday.Weusedthismethodtoconfirmthepathologicalevidenceofthepancreaticobiliarylesionsandtoperformsuitabletherapies.ComplicationsofEUS-FNAarequiterare,butsomeofthemaresevere.OperatorsshouldmasterconventionalEUSobservationandexperienceaminimumof20-30casesofsupervisedEUS-FNAonnon-pancreaticandpancreaticlesionsbeforeattemptingsoloEUSFNA.StudiesconductedonpancreaticobiliaryEUSFNAhavefocusedonselectionofsuitableinstruments（e.g.,needleselection）andsamplingtechniques（e.g.,fanningmethod,suctionlevel,withorwithoutastylet,optimumnumberofpasses）.Today,thediagnosticabilityofEUS-FNAisstillimproving;thedetectionofpancreaticcancer（PC）currentlyhasasensitivityof90%-95%andspecificityof95%-100%.InadditiontoPC,avarietyofrarepancreatictumorscanbediscriminatedbyconductingimmunohistochemistryontheFNAmaterials.Aflexible,largecaliberneedlehasbeenusedtoobtainalargepieceoftissue,whichcanprovidesufficienthistologicalinformationtobehelpfulinclassifyingbenignpancreaticlesions.EUSFNAcansupplyhighdiagnosticyieldsevenforbiliarylesionsorperi-pancreaticobiliarylymphnodes.ThisreviewfocusesontheclinicalaspectsofEUS-FNAinthepancreaticobiliaryfield,withtheaimofprovidinginformationthatcanenablemoreaccurateandefficientdiagnosis.

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简介：WedescribeandexperimentallydemonstrateameasuringtechniqueforMach–Zehnderinterferometer（MZI）basedintegratedphotonicbiochemicalsensors.OurtechniqueisbasedonthedirectmeasurementofphasechangesbetweenthearmsoftheMZI,achievedbysignalmodulationononeofthearmsoftheinterferometertogetherwithpseudoheterodynedetection,anditallowsustoavoidtheuseofcostlyequipmentsuchastunablelightsourcesorspectrumanalyzers.Theobtainedoutputsignalisintrinsicallyindependentofwavelength,powervariations,andglobalthermalvariations,makingitextremelyrobustandadequateforuseinrealconditions.Usingasilicon-on-insulatorMZI,wedemonstratethereal-timemonitoringofrefractiveindexvariationsandachieveadetectionlimitof4.1×10-6refractiveindexunits（RIU）.

简介：Duetotheminiaturizationofmoderndevicesre-quirecomponentswithlightweight,highintegra-tionandtheabilitytostoreenergyinassmallvol-umeaspossible.Asaresult,energystoragedensitybecomesanimportantfigureofmeritforenergystor-agedevices.Inthispaper,firstly,wediscussedtheenergydensityinfine-grainedleadzirconatetita-nateglass-ceramicscompositewiththehelpofthe

简介：ElectronleakagestillneedstobesolvedforInGaN-basedblue-violetlaserdiodes(LDs),despitethepresenceoftheelectronblockinglayer(EBL).Toreducefurtherelectronleakage,anewstructureofInGaN-basedLDswithanInGaNinterlayerbetweentheEBLandp-typewaveguidelayerisdesigned.TheopticalandelectricalcharacteristicsoftheseLDsaresimulated,anditisfoundthattheadjustedenergybandprofileinthenewstructurecanimprovecarrierinjectionandenhancetheeffectiveenergybarrieragainstelectronleakagewhentheIncompositionoftheInGaNinterlayerisproperlychosen.Asaresult,thedeviceperformancesoftheLDsareimproved.

简介：Take-homeMessages.TherecentlypublishedACC/AHAcholesterolguidelinesrecommendfixed-dosestatintherapyforthoseatrisk,andalthoughnotrecommendedasfirstlinetherapy,nonstatintherapiesarerecommendedwhenlessthananticipatedtherapeuticresponsetostatintherapyoccursorwhenpatientsarenotabletotoleratestatintherapy.Nonstatincholesterol-loweringdrugsshowntoreduceatheroscleroticcardiovasculardisease(ASCVD)eventsinrandomizedcontrolledtrials(RCTs)arepreferred.Noevidencewasfoundtosupporttheuseofspecificlow-densitylipoprotein(LDL)-cholesteroltargetlevels.

简介：Facileproductionofhighqualityactivatedcarbonsfrombiomassmaterialshasgreatlytriggeredmuchattentionpresently.Inthispaper,aseriesofinterconnectedporouscarbonmaterialsfromlotusrootshellsbiomassarepreparedviasimplepyrolysisandfollowedbyaKOHactivationprocess.Thepreparedcarbonsexhibithighspecificsurfaceareasofupto2961m~2/gandlargeporevolume～1.47cm3/g.Inaddition,theresultantporouscarbonsservedaselectrodematerialsinsupercapacitorexhibithighspecificcapacitanceandoutstandingrecyclingstabilityandhighenergydensity.Inparticular,theirspecificcapacitanceretentionwasalmost100%after10500cyclesatacurrentdensityof2A/g.Remarkabely,theimpactofthetailoredspecificsurfaceareasofvariouscarbonsamplesontheircapacitiveperformancesissystematicallyinvestigated.Generally,itwasbelievedthatthehighly-developedporosityfeatures(includingsurfaceareasandporevolumeandporesize-distributions),togetherwiththegoodconductivityofactivatedcarbonspecies,playakeyroleineffectivelyimprovingthestorageenergyperformancesoftheporouscarbonelectrodematerialsinsupercapacitor.