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简介：Inmagneticresonanceelastography,oneseekstoreconstructtheshearmodulusfrommeasurementsofthedisplacementfieldinthewholebody.Inthispaper,wepresentanoptimizationapproachwhichsolvestheproblembysimplyminimizingadiscrepancyfunctional.Inordertorecoveracomplexanomalyinahomogenousmedium,wefirstobservethattheinformationcontainedinthewavefieldshouldbedecomposedintotwoparts,a'near-field'partintheregionaroundtheanomalyanda'far-field'partintheregionawayfromtheanomaly.Aswillbejustifiedboththeoreticallyandnumerically,separatingthesescalesprovidesalocalandprecisereconstruction.

简介：Inbiosciencepapers,besidestheotherscientificmisconductissues,replicationofthemethodsectionisacommonproblembecauseduplicationisalwaysbeingdetectedinthesectionMaterialsandMethods.Weeditorsoftenreceivecommentsandqueriesfromauthorswhothinkthatitisamatterofcoursetocopytheirownpublishedmaterialsasopposedtocopyingthoseofothers.Howshouldeditorshandlesuchpaperswithsimilarcontentinthemethodsectionandhowtoguideauthorsinwritingthemethodsectionwithoutbeingaccusedofplagiarism?Whatisright?Whatiswrong?Herewestudiedanexampletoexplainthisproblem.

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简介：ThenucleiaroundmagicnumberN=126areinvestigatedinthedeformedrelativisticmeanfield(RMF)modelwitheffectiveinteractionsTMA.WefocusinvestigationsontheN=126isotonicchain.TheN=126shellevolutionisstudiedbyanalyzingthevariationsoftwo-neutron(proton)separationenergies,quadrupledeformations,singleparticlelevelsetc.Thegoodagreementoftwo-neutronseparationenergiesbetweenexperimentaldataandcalculatedvaluesisreached.TheRMFtheorypredictsthatthesizesofN=126shellbecomesmallerandsmallerwiththeincreasingofprotonnumberZ.However,theN=126shellexistsinourcalculatedregionallalong.Accordingtothecalculatedtwo-protonseparationenergies,theRMFtheorysuggests~(220)Puisatwo-protondrip-linenucleusintheN=126isotonicchain.

简介：Theobjectiveofthispaperistocomparetheperformancesoftheturbines,whichcouldbeusedforwaveenergyconversioninthenearfuture,undervariousirregularwaveconditions.Theturbinesincludedinthepaperareasfollows:(1)Wellsturbinewithguidevanes;(b)impulseturbinewithself-pitch-controlledguidevanes;(c)impulseturbinewithfixedguidevanes.Inthisstudy,experimentalinvestigationswerecarriedouttoclarifytheperformancesoftheturbinesundersteadyflowconditions,andthenanumericalsimulationwasusedforpredictingtheperformancesunderirregularwaveconditionswithvarioussignificantwaveheights.Asaresult,itwasfoundthattherunningandstartingcharacteristicsoftheimpulseturbinescouldbesuperiortothoseoftheWellsturbine.

简介：ThemeasurementresultsbyLaserDopplerVelocimetry(LDV)arecomparedwiththedirectnumericalsimulationresultbyEggelsetal.^[1]foracylindricalpipeflow.Inthecaseofapipeflow,thebiaserrorformeanvelocityisverysmall,becausethelocalturbulentintensityisverysmallalloverthepipecrosssection.Howeverthedifferenceofthecombinationofu'andv'haveconsiderableeffectsonReynoldsshearstress.Fromourinvestigation,itisfoundthattheselectionofcoincidencetimethatisanecessaryparameterforcombinationofu'andv'ismoreimportantinobtainingtheaccurateReynoldsshearstress.Thesuitablecoincidencetimeisselectedforajetflowandtheeffectivenessofcoincidenttimemethodorequaltimeintervalmethodwithcoincidencedataisshown.

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简介：Inthepresentpaper,afour-stageperforationmodelthataccuratelypredictstheresidualvelocityisdevelopedbyadoptinganenergymethod.Thefourstagesareplugformation,dishingformation,petalformationandprojectileexit.Inaddition,someimportantexperimentalresultsarepresentedandanalyzedtovalidatethepresentperforationmodel.Intheexperiments,highspeedcamerasystemisusedtorecordtheperforationprocess.Observationsontargetdamageandmeasurementsofinitialvelocitiesandresidualvelocitieswiththeaidofthesystemarepresented.Numericalsimulationsarecarriedoutforprojectilesagainstsingleandlayeredplatesadoptedintheexperiments.Theperforationprocessisstudiedandthedeformationandfailuremodesareobtained.Thepredictionsofnumericalsimulationsandanalyticalmodelarefoundinreasonablygoodagreementwiththoseofexperiments,andcanbeusedtopredicttheballisticlimitandresidualvelocityofstiffenedplatesperforatedbyrigidprojectiles.

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简介：Schr的准确解决方案?相应于一个baryonic系统的dinger方程是对现在的工作的主要兴趣。我们考虑二次并且在潜在的关系的库仑术语。下次，在介绍一个准确答案以后，我们在地面和激动的状态计算了旋转和isospin效果。结果与试验性的数据是可比较的。

简介：Thispapercontainsadetailed,selfcontainedandmorestreamlinedproofofthel~2decouplingtheoremforhypersurfacesfromthepaperofBourgainandDemeterin2015.TheauthorshopethiswillserveasagoodwarmupforthereadersinterestedinunderstandingtheproofofVinogradov'smeanvaluetheoremfromthepaperofBourgain,DemeterandGuthin2015.

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简介：Theheatofhydrationofdrysulfonicacidresinindifferentcomcentrationsofsulfuricacidhasbeendetermined.TheheatofhydrationoftheresininH2Ois143.4J/g(resin).Thegreatertheconcentrationofsulfuricacid,thelesstheheatwillbereleased.Thehydrateformedfromthreesulfonicacidgroupsandonewatermoleculeisthemoststableoneofallthehydratesofsulfonicacidresinandwater.

简介：Thefeasibilityofrecoveringglutamicacidbyionexchangemethodwithmacroporousresinswasinvestigated.Theiradsorptionpropertiesinstatistateandtheeffectivefactors,suchaspH,concentrationofeeedandtheratioofammoniumiontoglutamicacid,weresystematicallyexplored.Thebestconditionofseparatingglutamicacidfrommotherliquidwereobtained.

简介：TheinteractionsbetweenmetalionssuchasZn2+,Pb2+,Mn2+,Hg2+,Cd2+,Ni2+andchitosanhavebeeninvestigatedusingthemodelclustermodelmethodanddensityfunctionalmethod.FulloptimizationandfrequencyanalysisofallclustermodelshavebeenperformedemployingB3LYPhybridmethodat3-21Gbasissetlevelexceptmetalionswhichwereinvokedtouseeffectivecorepotential(ECP)method.Theenergychanges,andthemainstructuralparametershavebeenobtainedduringthetheoreticalstudyoftheadsorptionofmetalionsonthechitosan.Thecalculationsshowedthatthecoordinationmodesofmetalionswithchitosanmodelsweredifferent,thegeometriesofMn2+,Zn2+,Cd2+,Hg2+,Pb2+ionscoordinatedwithtwonitrogenatomsandtwooxygenatomsweredistortedtetrahedral,whilethesquareplanarstructureofNi2+coordinatedtwonitrogenatomsandtwooxygenatomswasobserved.Theheatofreactionbetweensixmetalionsandchitosanmodelsshowedtheorder:Mn2+＞Ni2+＞Zn2+＞Pb2+＞Hg2+＞Cd2+,thissuggestedthatthecoordinationstrengthofMn2+＞Ni2+＞Zn2+＞Pb2+＞Hg2+＞Cd2+.