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简介：Accuratemodelidentificationandfaultdetectionarenecessaryforreliablemotorcontrol.Motor-characterizingparametersexperiencesubstantialchangesduetoaging,motoroperatingconditions,andfaults.Consequently,motorparametersmustbeestimatedaccuratelyandreliablyduringoperation.Basedonenhancedmodelstructuresofelectricmotorsthataccommodatebothnormalandfaultymodes,thispaperintroducesbias-correctedleast-squares(LS)estimationalgorithmsthatincorporatefunctionsforcorrectingestimationbias,forgettingfactorsforcapturingsuddenfaults,andrecursivestructuresforefficientreal-timeimplementation.Permanentmagnetmotorsareusedasabenchmarktypeforconcretealgorithmdevelopmentandevaluation.Algorithmsarepresented,theirpropertiesareestablished,andtheiraccuracyandrobustnessareevaluatedbysimulationcasestudiesunderbothnormaloperationsandinter-turnwindingfaults.Implementationissuesfromdifferentmotorcontrolschemesarealsodiscussed.

简介：<正>AntelopeValleyTransitAuthority(AVTA)wantstofindoutifelectricbusesmightbeagoodfitforitsagencyandoth-erslikethem.ThisyearAVTAisembarkingonanexcitingdemonstrationprojectwithtwoBYDelectricbusesexpectedtobeplacedinservicebyApril—allthankstoasupportiveboardandagenerousdonationoffundingforzeroemissionbustechnology.

简介：Withthearrivaloftheeraofpersonalautoconsumption,residentsareenjoyingtheconvenienceoftravel;however,problemssuchasenvironmentalprotection,transportation,purchasingrestrictionareplaguingconsumersatthesametime.Asaneffectivealternativetoconventionalvehicle,electricvehicleinrecentyearshasbeenwidelyconcernedduetoitscharacteristicsofenergysavingandenvironmentalprotection.ToidentifythekeyinfluentialfactorsinthedevelopmentofEVindustryinChinaisconducivetoformulatingreasonableindustrialdevelopmentstrategyandmeetingmarketdemandofconsumers.Inthispaper,thekeyfactorsinthedevelopmentofEVindustryareobtainedbyanalyzingBaiduIndexineachtimeperiod.

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简介：Abriefaccountisprovidedoncrack-tipsolutionsthathaverecentlybeenpublishedintheliteraturebyemployingtheso-calledGRADELAmodelanditsvariants.TheGRADELAmodelisasimplegradientelasticitytheoryinvolvingoneinternallengthinadditiontothetwoLame'constants,inanefforttoeliminateelasticsingularitiesanddiscontinuitiesandtointerpretelasticsizeeffects.Thenon-singularstrainsandnon-singular(butsometimessingularorevenhypersingular)stressesderivedthiswayunderdifferentboundaryconditionsdifferfromeachotherandtheirphysicalmeaninginnotclear.Thisisdiscussedwhichfocusontheformandphysicalmeaningofnon-singularsolutionsforcrack-tipstressesandstrainsthatarepossibletoobtainwithintheGRADELAmodelanditsextensions.

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简介：Towardstheanalysisofthedevelopmentalsituationofwindpowergenerationandelectricvehicles,anovelideaforstabilizingthefluctuationofwindfarms’outputbytheuseofbatteryswappingstationsofelectricvehiclesisputforwardinthispaper,toeffectivelyalleviatetheimpactofgrid-connectedoperationofwindfarmsonthepowersystemwhilepromotingthefieldoperationofchargingandbatteryswappingstations.Abatteryswappingstationistreatedasacapacity-variableenergystoragepowerstation,connectedtotheoutputterminalofawindfarm.AcombinedoperationmodelforwindfarmandbatteryswappingstationisestablishedbasedontheMATLAB/SIMULINKsimulationplatformandthecontrolstrategyisproposedfortheoperationofbatteryswappingstations.Thesimulationresultsshowthattheintroductionofabatteryswappingstationcaneffectivelystabilizethefluctuationofwindfarmoutput.

简介：Inthispaper,thehybridelectricvehiclebrakingprocessisresearched,byusingvariablesconsistsofHEVspeed,motorspeed,andstateofchargeestablished,functionsofmechanicalbrakingforce,regenerativebrakingforceandefficiencyofenergyrecoveryareconstructed,andthecontrolgoalistomaximizationtheenergyrecoveryefficiency.Underthefeedbackcontrolstrategy,withtheconstrainconditionofbrakingstrengthandbrakingstability,combiningexperimentsinADVISOR,indifferentexperimentsofdifferentworkingconditions,wecanseethatinUDDSCycle,theregenerativebrakingefficiencyisthebest.What’smore,comparedwithstrategiesinADVISOR,strategyproposedinthispaperisobviouslybetter.

简介：Inthispaper,addedresistancesactingonahullofnonballastwatership（NBS）inhighwavesisdiscussed.ThenonballastwatershipsweredevelopedatthelaboratoryoftheauthorsatOsakaPrefectureUniversity,Japan.Inthepresentpaper,theperformancesofthreekindsofbowshapesdevelopedfortheNBSweretheoreticallyandexperimentallyinvestigatedtofindthebestoneinhighwaves.Inpreviouspapers,anoptimumbowshapefortheNBSwasdevelopedincalmwaterandinmoderatedwaves.Fora2mmodelforexperimentsandcomputations,thewaveheightis0.02m.Thismeansthatthewaveheightis15%ofthedraftoftheshipinfullloadconditions.Inthispaper,addedresistancesinhighwavesupto0.07mfora2mmodelor53%ofthefullloaddraftareinvestigated.Insuchhighwaveslinearwavetheorieswhichhavebeenusedinthedesignstageofashipforalongtimemaynotworkwellanymore,andexperimentsaretheonlyeffectivetooltopredicttheaddedresistanceinhighwaves.Withthecomputationsforwaves,theshipisinafullycapturedconditionbecauseshorterwaves,λ/Lpp〈0.6,areassumed.

简介：聚氨酯，是在论文介绍的组成的研究的题目，基于Bayer生产的oligocarbonatediolsDesmophenC2100?。组成的建模考虑到作为intervertebral圆盘prostheses的inlay使用材料被执行。聚氨酯被假定是非线性地viscohyperelastic，各向同性、不可压缩。组成的方程从要求的紧张精力功能被导出。橡皮和rheological常数根据试验性的测试被识别，即松驰测试和monotonic以二不同紧张率的单轴的测试，即\(\dot\lambda=0.1\)min1和\(\dot\lambda=1.0\)min1。僵硬张肌被导出并且介绍给Abaqus吗？有限元素(FE)软件以便数字地验证组成的模型。常数鉴定和数字实现的结果证明导出的组成的方程是充分足够的为聚氨酯材料的压力紧张行为建模。

简介：AIM:Toexaminetheintegrityoftheocularsurfacesofsubjectswithandwithoutdiabeteswithnoconjunctivalanddryeyesignsandsymptomsandcompareconjunctivalimpressioncytologyfindingsindiabeticswithnon-proliferativeandproliferativediabeticretinopathy.METHODS:Conjunctivalimpressioncytologywasperformedon43eyesof43subjectswithnonproliferativediabeticretinopathy(NPDR),42eyesof42subjectswithproliferativediabeticretinopathy(PDR),and30eyesof30controlsubjects.Impressioncytologyspecimensofeachgroupweregradedandscoredintherange0-3accordingtoNelson’smethod.RESULTS:Therewere45(52.9%)womenand40(47.1%)men.Themeanageofthepatientswas59.6±9.3y(range,43-76y)inNPDRgroupand58.0±8.8y(range,41-85y)inPDRgroup.CaseswithNPDRandPDRshowedstatisticallysignificanthigherimpressioncytologyscoresthancontrolgroup(P<0.05).TherewasnodifferencebetweentheNPDRandPDRpatientsforimpressioncytologygradingscores.CONCLUSION:ItisdeterminedthatimpressioncytologygradesarealteredinpatientswithNPDRandPDR.Consequently,wesuggestthattheremightbeanassociationbetweentheimpressioncytologygradingscoresandtheseverityofdiabeticretinopathy

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简介：Overthepastfewdecades,non-alcoholicfattyliverdisease(NAFLD)hasbecomeone,ifnotthemostcommon,causeofchronicliverdiseaseaffectingbothadultsandchildren.Theincreasingnumberofcasesatanearlyageisthemostworryingaspectofthispathology,sinceitprovidesmoretimeforitsevolution.Thespectrumofthisdiseaserangesfromliversteatosistosteatohepatitis,fibrosisandinsomecases,hepatocellularcarcinoma.NAFLDmaynotalwaysbeconsideredabenigndiseaseandhepatologistsmustbecautiousinthepresenceoffattyliver.Thisshouldprompttheuseoftheavailableexperimentalmodelstounderstandbetterthepathogenesisandtodeveloparationaltreatmentofadiseasethatisdangerouslyincreasing.Inspiteofthegrowingefforts,thepathogenesisofNAFLDisstillpoorlyunderstood.InthepresentarticlewereviewthemostrelevanthypothesesandevidencethataccountfortheprogressionofNAFLDtonon-alcoholicsteatohepatitis(NASH)andfibrosis.TheavailableinvitroandinvivoexperimentalmodelsofNASHarediscussedandrevisedintermsoftheirvalidityintranslationalstudies.Thesestudiesmustbeaimedatthediscoveryofthestillunknowntriggersormediatorsthatinducetheprogressionofhepaticinflammation,apoptosisandfibrosis.

简介：Lowpowerconsumptionisamajorissueinnowadayselectronicssystems.ThistrendispushedbythedevelopmentofdatacenterrelatedtocloudservicesandsoontotheInternetofThings(IoT)deployment.Memoriesareoneofthemajorcontributorstopowerconsumption.However,thedevelopmentofemergingmemorytechnologiespavesthewaytolow-powerdesign,throughthepartialreplacementofthedynamicrandomaccessmemory(DRAM)withthenon-volatilestand-alonememoryinserversorwiththeembeddedordistributedemergingnon-volatilememoryinIoTobjects.Inthelattercase,non-volatileflip-flops(NVFFs)seemapromisingcandidatetoreplacetheretentionlatch.Indeed,IoTobjectspresentlongsleeptimeandNVFFsoffertosavedatainregisterswithzeropowerwhentheapplicationisidle.ThispapergivesanoverviewofNVFFarchitectureflavorsforvariousemergingmemorytechnologies.

简介：在一个挑出类型有弹性的基础上休息的稍微弄弯的围单人赛的碳nanotube(SWCNT)的非线性的震动的模型用非局部的Euler-Bernoulli有弹性的理论被开发。SWCNT被假定在外部泛音下面颤动电的力量地和一个分析答案被建议获得非线性的反响的频率。结果证明对数字模拟和获得的分析频率的好同意是完全与nanotube的弯曲有关。我们的模型预言尽管模型在自然是非线性的，弄弯的SWCNT能在弯曲的某个数量线性地表现，弄弯的SWCNT的这伪线性的震动的行为是基础的方面比率，非局部的参数，和僵硬的一个函数。

简介：Unsteadymotionofaverticallyfallingnon-sphericalparticlehasattractedconsiderableattentionduetoitsfrequentapplicationsinnatureandindustry.Aseriesofsemi-analyticalmethodshavebeenusedtoraisetheresults’accuracyaswellaswideningtheregionofconvergence.Thecurrentstudypursuedanewanalyticalsolutionfortheunsteadymotionofarigidnon-sphericalparticleinaquiescentNewtonianfluid,basedontheOptimalHomotopyAnalysisMethod.Withaviewtowardsobtainingthehighestlevelofaccuracyandensuringtheconvergenceoftheanalyticalresults,theaveragedresidualerrorswereobtainedandminimized.Inadditiontoflexibility,itwasalsoproventhattheproposedmethodcanleadtocompletelyreliableandpreciselyaccurateresults.Basedontheseriessolution,theeffectsofphysicalparametersontheterminalsettlingvelocity(i.e.thegreatestvelocitythatafallingbodymayreach)andtheaccelerationtime(i.e.thetimethataparticlereachesthesettlingvelocity)areinvestigated.

简介：Non-sphericalmicronandnano-sizedparticlesandtheircompositeshavebecomeessentialinselectapplicationareasofoptics,wearresistance,personnelprotection,chemicalmechanicalpolishing,andbiomedicine.Inthispaper,thesynthesisofcompositeandceramicnon-sphericalparticlesusingstopflowlithographyisreported.Precursorsuspensionsofpoly（ethyleneglycol）diacrylate,2-hydroxy-2-methylpropiophenoneandSiO2orAl2O3areprepared.Theprecursorsuspensionflowsthroughamicrofluidicdevicemountedonanuprightmicroscopeandispolymerizedinanautomatedprocess.Aphotomaskpatternedwithtransparentgeometricfeatures,whichdefinethecross-sectionalshapesoftheparticles,maskstheUVlighttosynthesizemicronsizedparticles.Particleswithaxialdimensionsrangingfrom35to167μmweresynthesized.Controlofdevicechanneldepthandobjectivelensmagnificationenablesthemanipulationoftheparticlesize.Compositeparticlesintriangular,square,pentagonal,hexagonal,andcircularcrosssectionsweresynthesized.Subsequently,thetransformationofthecompositeparticlesintothecorrespondingmetaloxideparticleswasachievedthroughpolymerburn-offandsintering.

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简介：Non-uniformalgebraic-trigonometricB-splinessharesmostofthepropertiesasthoseoftheusualpolynomialB-splines.Buttheyarenotorthogonal.Weconstructanorthogonalbasisforthen-order(n≥3)algebraic-trigonometricsplinespaceinordertoresolvethetheoreticalproblemthatthereisnotanexplicitorthogonalbasisinthespacebynow.MotivatedbytheLegendrepolynomials,wepresentanovelapproachtodefineasetofauxiliaryfunctions,whichhavesimpleandexplicitexpressions.Thentheproposedorthogonalsplinesaregivenasthederivativesoftheseauxiliaryfunctions.