简介：Letr,1p={f:fr-1isabs.cont.onI=[a,b],fisperiodiewithperiodH（=b-a）,f（x1）=0,‖f（r）‖p≤0},wherex1isanyfixedpointin[a,b].TheauthorfindstheKolmogorov,Gel’land,linear,andBerusteinn-widthsofr,1pinLp（I）fornodd,∞>p>1.Theoptimalsubspacesandoperatorsarealsofound.

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简介：ThepresentpaperdealswithfindingofconstantoccurringintheorderofapproximationofthefunctionofLipα(O<α<1)classbyusing(N,p)operator.Obviouslythefactor1/(1-α)becomeslargewhenαiscloseto1.Wehaveshowntheroleofthisfactorintheconstantofapproximation.

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简介：Inthispaper,alargeclassofndimensionalorthogonalandbiorthognalwaveletfilters(lowpassandhighpass)arepresentedinexplicitexpression.Wealsocharacterizeorthogonalfilterswithlinearphaseinthiscase.Someexamplesarealsogiven,includingnonseparableorhogonalandbiorthogonalfilterswithlinearphase.

简介：Wetrytoapplyaconstituentquarkmodel(avarietychiralconstituentquarkmodel)andtheresonatinggroupapproachforthemulti-quarkproblemstocomputetheeffectivepotentialbetweentheNN-inS-wave(thequarksinthenucleonsNandN-,andthetwonucleonsrelativelyaswell,areinSwave)soastoseethepossibilityiftheremaybeatightboundstateofsixquarksasindicatedbyastrongenhancementatthresholdofpp-inJ/ψandBdecays.TheeffectivepotentialwhichweobtainintermsofthemodelandapproachshowsiftheexperimentalenhancementisreallycausedbyatightS-waveboundstateofsixquarks,thenthequantumnumberoftheboundstateisverylikelytobeI=1,JPC=0-+.

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简介：这研究的目的是评估本地人爬象粗糙的颗粒的热那样的各种各样的微观结构的损坏影响了地区(CGHAZ)，精细的热影响了地区(FGHAZ)，intercritical热影响了作为类型IV区域知道的地区(ICHAZ)，焊接金属，并且由小穿孔机(SP)基于P92(9Cr-2W)钢焊接的金属爬在600掳C的测试。另外，焊接分开决定最弱的本地人，微观结构在上的效果爬在P92钢的焊接的破裂行为被学习。从试验性的结果，FGHAZ和类型IV区域结果是P92焊接的很弱的本地部分。特别，TYPEIV区域显示出最大的排水量率并且与许多过了最短的破裂生活爬洞广泛地在大多数这个区域传播了。

简介：Theforwarddegeneratefour-wavemixinggeometrywasemployedtoinducemicrostructureinanorganicfreefradicalazobenzenepolymerfilm.BeforeirradiatedwithAr^+laserbeams(λ=514.5nm),theazobenzeneorganicfreeradicalpolymerexhibitsmagneticisotropicmeasuredbysuperconductingquantuminterferencedevice,Afterphoto-inducedmicrostructure,thepolymerfilmbecomesmagneticanisotropy,WhentheappliedmagneticfieldH+50Gauss,themanetizationalongthenormaldirectionofthePolymerfilmisMz=5.5×10^-5emu/g,whichislargerthanMx=4.1×10^-5emu/ginthedirectionparalleltothepolymerfilm.

简介：ThedecompositionoftherepresentationsT0(v∈R)oreconsideredhere.ThePlancherelformulafortheuniversalcoveringgroupofSU(1,1)isalsodeduced.

简介：Itwasfoundthatphosphorylationofsmallpeptidecouldimprovethesensitivityinmassspectrometry.DensityfunctionaltheorycalculationsshowedthattheenergyfortheprotonationofN-(O,O′-dimethyl)phosphorylglycylglycineislowerthanthatofglycylglycine.Thesecouldhelptounderstandingtheexperimentalresults.

简介：ＳＴＵＤＩＥＳＯＮＨＥＴＥＲＯＭＡＣＲＯＣＹＣＬＩＣＰＯＬＹＥＴＨＥＲ（ＸＩＶ）ＴＨＥＳＹＮＴＨＥＳＩＳＯＦＳＥＬＥＮＡＣＲＯＷＮＥＴＨＥＲＷＩＴＨＨＹＤＲＯＸＹＧＲＯＵＰＡＮＤＤＩＳＥＬＥＮＡ－ＡＺＡ－ＣＲＯＷＮＥＴＨＥＲＨａｎＳｈｅｎｇＸｕ；Ｊｕ...

简介：LetGbeap-seriesgroupandΩbeacompactsubgroupofG.Letλ(x,r)andλ,(x,r)beA-belp-poissontypekernelandproducttypekernelOnΩrespectively.Inthispaperwediscusstheap-proximationpropertiesofsuchkernels,givetheestimate5oftheirmoments,obtainthedirectandin-verseapproximationtheorems.

简介：Thiscontributionreportsethylenepolymerizationbehavioroftitaniumcomplexesincorporatingbis(phenoxyimine)ligands.Sixphenoxy-imineTi(IV)complexes{6-R1-2-[CH=N(2,6-difluoro-3,5-diR2-4-R3Ph)]C6H3O}2TiCl2(1:R1=H,R2=H,R3=H;2:R1=H,R2=H,R3=4-vinylphenyl;3:R1=CH3,R2=H,R3=H;4:R1=CH3,R2=H,R3=4-vinylphenyl;5:R1=CH3,R2=F,R3=H;6:R1=CH3,R2=F,R3=4-vinylphenyl)havebeensynthesizedandevaluatedforethylenepolymerizationusingdriedMAO(simplifiedasDMAO)ascocatalyst.AnobviouscatalyticheterogeneityofCat2(Complex2/DMAO)towardsethylenepolymerizationwasobserved,whichwasillustratedbydecreasedactivity,multimodalmolecularweightdistributionandpartiallyimprovedparticlemorphologycomparingwithCat1.Moreover,Cat3exhibits'living'characteristicsintheprocessundercertainconditions(25°C,lessthan20min).Otherwise,themoderatetohighethylenepolymerizationactivityofca.105-106gPE/(molTi·h)andhighmolecularweight(Mw=105-106)ofpolyethylenecanbeobtainedbychangingtheskeletonstructureofthesecomplexes.

简介：LetXbea4-valentconnectedvertex-transitivegraphwithodd-prime-powerorderp^κ（κ≥1）andletAbethefullautomorphismgroupofX.Inthispaper,weprovethatthestabilizerAvofavertexvinAisa2-groupifp≠5，ora{2,3}-groupifp=5.Furthermore,ifp=5|Av|isnotdivisibleby3^2.Asaresult,weshowthatany4-valentconnectedvertex-transitivegraphwithodd-prime-powerorderp^κ(κ≥1）isatmost1-arc-transitiveforp≠5and2-arc-transitiveforp=5.

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简介：Monodispersecrosslinkedpoly(chloromethylstyrene-co-divinylbenzene)(poly(CMSt-co-DVB))microsphereswerepreparedbydistillation-precipitationcopolymerizationofchloromethylstyrene(CMSt)anddivinylbenzene(DVB)inneatacetonitrile.Thepolymerparticleshadcleansurfacesduetotheabsenceofanyaddedstabilizer.Thesizeoftheparticlesrangesfrom2.59μmto3.19μmandwithmono-dispersityaround1.002-1.014.Theeffectsofmonomerfeedincopolymerizationonthemicrosphereformationweredescribed.ThepolymermicrosphereswerecharacterizedbySEMandchlorinityelementalanalysis.

简介：Thegrouptimedelaysandamplitudesofthenormalmodearederivedusingthenormalmodefilter.Theseabottomsoundspeed,densityandattenuationareinverselydeducedbymatchingthegrouptimedelaysandtheamplitudeofthenormalmode.Ageneticalgorithm(GA)isusedforoptimizationsearchintheparameterspace.Theinvertedattenuationhasthenonlinearfrequencyrelationshipa=0.29f1.91dB/m(theunitoffrequencyiskHz)inthefrequencyrange200-500Hz.Thetheoreticaltransmissionlosscalculatedusingthededucedparametersmatchestheexperimentdataverywell.

简介：Itisknownfromclassicaldifferentialgeometrythatonecanreconstructacurvewith(n-1)prescribedcurvaturefunctions,ifthesefunctionscanbedifferentiatedacertainnumberoftimesintheusualsenseandifthefirst(n-2)functionsarestrictlypositive.ItisestablishedherethatthisresultstillholdsundertheassumptionthatthecurvaturefunctionsbelongtosomeSobolevspaces,byusingthenotionofderivativeinthedistributionalsense.ItisalsoshownthatthemappingwhichassociateswithsuchprescribedcurvaturefunctionsthereconstructedcurveisofclassC∞.