简介：Westudythegeneralrepresentationsofpositivepartialtranspose(PPT)statesinCKCMCN.ForthePPTstateswithrank-Nacanonicalformisobtained,fromwhichasufficientseparabilityconditionispresented.

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简介：Thisarticleprovestheexistenceofsingulardirectionsofvaluedistributiontheoryforsometranscendentalholomorphiccurvesinthen-dimensionalcomplexprojectivespacePn(C).Anexampleisgiventocomplementtheseresults.

简介：ThepaperdefinesanextendedCesàrooperatorTgwithholomorphicsymbolgintheunitballBofCnasWhereg(z)=∑j=1∑nzjg/zjistheradialderivativeofg.Inthispaper,theauthorcharacterizesgforwhichTgisbounded(orcompact)ontheBlochspaceBandthelittleBlochspaceB0.

简介：ＱＵＡＬＩＴＡＴＩＶＥＳＴＵＤＹＯＦＳＩＡＬＯＭＵＣＩＮＳＣＨＡＮＧＥＳＤＵＲＩＮＧＮ－ＭＥＴＨＹＬ－Ｎ－ＮＩＴＲＯＳＯＵＲＥＡ－ＩＮＤＵＣＥＤＣＯＬＯＮＩＣＣＡＲＣＩＮＯＧＥＮＥＳＩＳＩＮＭＩＣＥＷａｎｇＱｉａｎｇ王强；ＷａｎｇＹｕａｎｈｅ王元和；...

简介：ThesubmicronpowdermixturesofTiC-TiN-WC-Mo-C-Nisinteredat1400℃orbelowinvacuumwerestudiedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM)andtransmissionelectronmicroscopy(TEM)analyses.TheresultsshowedthatMo2Cformedat800℃orbelow.BothWCandMo2Cdisappearedat1200℃,andTiNdisappearedat1250℃.Inaddition,thevariationsoflatticeconstantsofthetitaniumcarbonitrideandnickelbinderphasewithsinteringtemperaturewereexperimentallyobtained,andthereasonwasanalyzed.

简介：Thec-JunN-terminalkinases(JNKs)areclassicstress-activatedproteinkinases.ManycellularstresseshavebeenshowntostimulateJNKactivation.Inthisreview,wefocusonribotoxicstressesbasedontheirmultiplebiologicalpotenciesincludinganti-HIV-1activity.Someofthefunctionsofribotoxinsandthesignalingtransductionpathwaythatmediatedarementioned.Differentfromotherstimulators,ribotoxicstressesactonspecialmotifsof28SrRNAintranslationallyactivemammalribosomes.BindinganddamagingonthemotifleadstoJNKactivationandsubsequentlybiologicalresponsetothesignalinitiator,whichisnamedribotoxicstressresponse.

简介：Thepresentpapershowsthatforanysequenceofrealnumberswithinfinitedistinctelements{λ_n},therationalcombinationof{x~λ}arealwaysdenseinC_[0,1].

简介：SupposethatDisaboundeddomainwithapiecewiseC^1smoothboundaryinC^n.Letψ∈C^1+α(δD).ByusingtheHadamardprincipalvalueofthehigherordersingularintegralandsolidanglecoefficientmethodofpointsontheboundary,wegivethePlemeljformulaofthehigherordersingularintegralwiththeBoehner-Martinellikernel,whichhasintegraldensityψ.Moreover,bymeansofthePlemeljformulaandmethodsofcomplexpartialdifferentialequations,wediscussthecorrespondingCauehyboundaryvalueproblemwiththeBoehner-Martinellikernelonaclosedpiecewisesmoothmanifoldandobtainitsuniquebranchcomplexharmonicsolution.

简介：Fivehumicfractionswereobtainedfromauniformly^15N-labelledsoilbyextractionwith0.1molL^-1Na4P2O7,0.1molL^-1NaOH,andHF/HCl-0.1molL^-1NaOH,consecutively,andanalyzedby^13Cand^15NCPMASNMR(crosspolarizationandmagicanglespinningnuclearmagneticresonace).Comparedwiththoseofnativesoilshumicfractionsstudiedasawholecontainedmorealkyls,methoxylsandO-alkyls,being27%-36%,17%-21%and36%-40%,respectively,butfeweraromaticsandcarboxyls(bein14%-20%and13%-90%,respectively),Amongthosehumicfractions,thehumicacid(HA)andfulvicacid(FA)extractedby0.1molL^-1Na4P2O7containedslightlymorecarboxylsthancorrespondinghumicfractionsextractedby0.1molL^-1NaOH,andtheHAextactedby0.1molL^-1NaOHaftertreatmentwithHF/HClcontainedtheleastaromaticsandcarboxyls.Thedistributionofnitrogenfunctionalgroupsofsoilhumicfractionsstudiedwasquitesimilartoeachotherandalsoquitesimilartothatofhumicfractionfromnativesoils.Morethan75%oftotalNineachfractionwasinamidefrom,with9%-13%presentasaromaticand/oraliphaticaminesandtheremainderasheerocyclicN.

简介：Aerobicstaticpilecomposting(mechanicalturningevery3days)ofpigmanurewaspreparedat8m3windrowheaps.Sawdustwasusedasthebulkingagenttoprovideadditionalcarbonandtoincreasetheporosityofthesubstrate.TwotreatmentsatinitialC/Nratiosof30and15,respectively,weredesignedinthestudy.Dissolvedorganiccarbon(DOC),solubleNH4+-N,C/Nratiosinsolidandaqueousphases,E4/E6ratios,andseedgerminationindex(GI)weredeterminedtoevaluatethematurityoftheco-composts.Seedgerminationindex,abiologicalparameter,wassuggestedasoneofthemostreliablematurityindicatorsfororganiccompost.TheresultsshowedthatthetreatmentattheinitialC/Nratioof30reachedmaturityafter49daysofcomposting;however,thetreatmentattheinitialC/Nratioof15shouldrequirecompostingtimeoflongerthan63daystoobtainmaturation.Chemicalmulti-indicatorevaluationwasnecessary,andtheGImeasurementwastherecommendedapproachformaturityevaluationinthestudy.

简介：在这个工作我们在场关于借助于在与形状保存有关的假设下面的一个线性操作符的一个函数的k-th衍生物的近似的结果性质。作为后果，我们关于Meyer-K推出新结果?nig和Zeller操作员。

简介：本文对R(m=C4,n)图的优美性进行证明,同时对R(m=C4,n)图的交错性进行证明.

简介：ThispaperstudiestheasymptoticpropertiesoftherandomiterationsofboththeformGn=f1of2o……ofnandtheformFn=fnofn-1o…of1,where{fn}（包含于）H(Ω，Ω)andΩ（包含于）C^Nisahoundeddomain.Itisfoundthat,undersomeconditions.GnorFntendstoapointinΩasn→∞.Someexamplesarealsogiventoshowthattheconditionsthatwehavegivencannotbedroppedingeneral,Moreover,acompletedescriptionisgivenforFnorGntotendtoapointinΩundertheconditionfn→f.

简介：LetM^nbeaclosedspacelikesubmanifoldisometricallyimmersedindeSitterspaceSp^(n+p)(c)，DenotebyR,HandSthenormalizedscalarcurvature,themeancurvatureandthesquareofthelengthofthesecondfundamentalformofM^n,respectively.SupposeRisconstantandR≤c.ThepinchingproblemonSisstudiedandarigiditytheoremforM^nimmersedinSp^(n+p)(c)withparallelnormalizedmeancurvaturevectorfieldisproved.Whenn≥3,thepinchingconstantisthebest.Thus,themistakeofthepaper“Space-likehypersurfacesindeSitterspacewithconstantscalarcurvature”(seeManusMath,1998,95:499-505)iscorrected.Moreover,thereductionofthecodimensionwhenM^nisacompletesubmanifoldinSp^(n+p)(c)withparallelnormalizedmeancurvaturevectorfieldisinvestigated.

简介：讨论了Cn中超球上p-Bloch空间Bp上的点乘子.根据p的不同情况得到Bp空间所有的点乘子,对Bp空间的点乘子进行了完整的刻划.

简介：设函数f(x)=ax~m+b/x~n+c(其中a、b、x、m、n为正实数),显然,函数f(x)无上界而有下界,故其极值自然只是极小值,同时,它与函数g(x)=ax~m+b/x~n的极值仅相差一个常数c。在下述情况下,函数g(x)的极小值可根据“几个正数的算术平均不小于它们的几何平均”极简便地求出,极值点的横坐标根据上述不等式中等号成立的条件得出关于x的

简介：Thechloroformfumigation-incubationmethowasusedtomeasurthesoilmicrobialbiomassC(SMBC)andN(SMBN)in16loessialsoilssampledfromAnsai,YongshouandYanglinginShaanxiProvince.TheSMBContentsinthesoilsrangedfrom75.9to301.0μgCg^-1withanaverageof206.μgCg^-1,accountingfor1.36%-6.24%ofthetotalsoilorganicCwithanaverageof3.07%,andtheSMBNcontentsfrom0.51to68.40μgNg^-1withanaverageof29.4μgNg^-1,accountingfor0.20%-5.65%ofthetotalNinthesoilswithanaverageof3.36%.AcloserelationshipwasfoundbetweenSMBCandSMBN,andtheybothwerepositivelycorrelatedwithtotalorganicC,totalN,NaOHhydrolizableNandmineralizableN.Theseresultsconfirmedthasoilmicrobialbiomasshadacomparativeroleinnutrientcyclesofsoils.

简介：由数列极限定义知：当limn→∞αn存在时，limn→∞αn+1=limn→∞αn，这个结论在解题中有什么应用呢？请看下面的例题。