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简介：牛顿的重复为单个Toeplitz矩阵的组逆的计算被修改。在每次重复，重复矩阵被一个矩阵与一个低排水量等级接近。因为重复矩阵的排水量结构，涉及牛顿的重复的thematrix向量增加能高效地被做。我们证明修改牛顿重复的集中仍然是很快的。数字结果被介绍表明建议方法的快集中。

简介：Themainworkoftheirradiationtechniquegroupfocusesonthefollowingtwoaspectsin2016:1.TechniquesupportWehavehadabout772.5hbeamtimefor39roundsofsingleeventeffect(SEE)tests,whichiscooperatingwithvariousinstitutes,universities,andcompanies.Thetestsarethebasicsafeguardforthespacecraftandsatellite.InordertoguaranteethetestefficiencyoftheTerminal5,themaintenanceandimprovementforthevacuum,thesampletransferandbeammonitorsystemhavebeenachieved.

简介：Amulti-proxyquantumgroupsignatureschemewiththresholdsharedverificationisproposed.Anoriginalsignermayauthorizeaproxygroupashisproxyagent.Thenonlythecooperationofallthesignersintheproxygroupcangeneratetheproxysignatureonbehalfoftheoriginalsigner.Inthescheme,anytormoreofnreceiverscanverifythemessageandanyt1orfewerreceiverscannotverifythevalidityoftheproxysignature.

简介：LetGbeanonabelianfinitegroup.ThenIrr(G/G′)isanabeliangroupunderthemultiplicationofcharactersandactsonthesetofnon-linearirreduciblecharactersofGviathemultiplicationofcharacters.Thepurposeofthispaperistoestablishsomefactsabouttheactionoflinearcharactergrouponnon-linearirreduciblecharactersanddeterminethestructuresofgroupsGforwhicheitheralltheorbitkernelsaretrivialorthenumberoforbitsisatmosttwo.Usingtheestablishedresultsonthisaction,itisveryeasytoclassifygroupsGhavingatmostthreenomlinearirreduciblecharacters.

简介：In2014,researchersinthehighenergynuclearphysicsgroupatIMPhavecarriedouttheirresearchworkonhadronphysics.Severalinterestingresultswereobtainedandpublished.Themesonandbaryonexcitedstateshavebeenstudiedinalargenumberofformationandproductionexperiments.Thestudyofmesonresonancesandthesearchforglueballs,hybrids,andmultiquarkstateshaveremainedanactiveandinterestingfieldofhadronphysics,whileforbaryons,theinvestigationofthebaryonspectrumandthebaryoncouplingsfromexperimentaldataarealsothemostimportantissuesinhadronicphysicsandtheyareattractingmuchattention.StudyinghadronresonancesiscrucialtounderstanddeeplytheQCDtheoryatnonperturbativeenergyregion,anditisalsoimportantfornuclearphysicsandparticlephysics.

简介：Thespacecraftwithmultistagesolarpanelshavenonlinearcouplingbetweenattitudesofcentralbodyandsolarpanels,especiallytherotationofcentralbodyisconsideredinspace.Thedynamicsmodelisbasedfordynamicsanalysisandcontrol,andthemultistagesolarpanelsmeansthedynamicsmodelingwillbeverycomplex.Inthisresearch,theLiegroupvariationalintegratormethodisintroduced,andthedynamicsmodelofspacecraftwithsolarpanelsthatconnectstogetherbyflexiblejointsisbuilt.Themostobviouscharacterofthismethodisthattheattitudesofcentralbodyandsolarpanelsarealldescribedbythree-dimensionalattitudematrix.Thedynamicsmodelsofspacecraftwithoneandthreesolarpanelsareestablishedandsimulated.ThestudyshowsLiegroupvariationalintegratormethodavoidsparameterscouplingandeffectivelyreducesdifficultyofmodeling.TheobtainedcontinuousdynamicsmodelbasedonLiegroupisasetofordinarydifferentialequationsandequivalentwithtraditionaldynamicsmodelthatoffersabasisforthegeometrycontrol.

简介：Softsettheoryhasarichpotentialapplicationinseveralfields.Asoftgroupisaparameterizedfamilyofsubgroupsandafuzzysoftgroupisaparameterizedfamilyoffuzzysubgroups.Theconceptoffuzzysoftgroupisthegeneralizationofsoftgroup.AbdulkadirAygunogluandHalisAygunintroducedthenotionoffuzzysoftgroupsin2009[1].Inthispaper,theconceptoflatticeorderedfuzzysoftgroupsanditsdualityhasbeenintroduced.Thendistributiveandmodularlatticeorderedfuzzysoftgroupsareanalysed.Theobjectiveofthispaperistostudythelatticetheoryoverthecollectionoffuzzysoftgroupinaparametricmanner.Somepertinentpropertieshavebeenanalysedandhenceestablisheddualityprinciple.

简介：这篇文章的目的是在theta系列上讨论symplectic转变法律并且为symplectic操作员的踪迹给一些明确的公式。

简介：Proceedingfromtheeigenvalueequationofthenormalmodeinhomogeneousshallowwater,wederiveseveralformulaecalculatingthemodeattenuationandgroupvelocity,andcomparetheiraccu-racybymeansofnumericalresults.Thepaperespeciallydiscussestheattenuationandthegroupve-locityofcriticalmodeinaPekerischannelandshowsthatingeneral,theattenuationandthegroupvelocityofthecriticalmoderespectivelyarelessthantheabsorptionandthesoundspeedinthebot-tom.Therefore.theKornhauser,Raney,WestonTindle‘sconclusionsaremodifiedthattheattenuationandthegroupvelocityofthecriticalmodeareexactlyequaltotheabsorptionandthesoundspeedinthebottom,respectively.

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简介：深化对本性谱的认识;给出∑_e~n(n≥2)型Banach空间上的摄动类问题的反面回答.

简介：Thetwocompounds,2,2-dimethyl-4-S-(N,N-dimethyldithiocarbamato)-5-(1,2,4-triazol-l-yl)-propione(1)and2,2-dimethyl-4-S-(N,N-diethyldithiocarbamato)-5-(1,2,4-triazol-1-yl)-3-propione(2),werepreparedbyreactingN,N-dialkyldithiocarbamatesodiumwith2,2-dimethyl-4-bromo-5-(1,2,4-triazol-1-yl)-propione.Theirstructureswereidentifiedbyelementalanalysis,IRand^1HNMRspectroscopy.Thestructureof1hasbeendeterminedbyX-raysinglecrystalstructureanalysis.ItcrystallizesinmonoclinicsystemwithspacegroupP21/c,a=1.2315(3)nm,b=1.2057(2)nm,c=1.2532(3)nm,β=118.55(3)°,Z=4,V=1.6345(6)nm^3,Dc=1.221g/cm^3,μ=0.324mm^-1,F(000)=640,finalR1=0.0449.ThereisobviouspotentiallyweakC—H...Nintermolecularinteractioninthecrystal,whichstabilizesthecrystalstructure.Theresultofthebiologicaltestshowedthatthetwocompoundshavefungistasisandplantgrowthregulatingactivities.

简介：<正>WeintroducecertainCalderón-Zygmund-typeoperatorsanddiscusstheirboundednessonspacessuchasweightedLebesguespaces,weightedweakLebesguespaces,weightedHardyspacesandweightedweakHardyspaces.Thesharpnessofsomeresultsisalsoinvestigated.

简介：Anenvironmentallyfriendlyprecursor,adenosine,hasbeenusedasadualsourceofCandNtosynthesizenitrogen-dopedcarboncatalystwith/withoutFe.Ahydrothermalcarbonizationmethodhasbeenusedandwateristhecarbonizationmedia.Themorphologyofsampleswith/withoutFecomponenthasbeencomparedbyHRTEM,andtheresultshowsthatFecanpromotethegraphitizationofcarbon.Furtherelectro-chemicaltestshowsthattheoxygenreductionreaction(ORR)catalyticactivityofFe-containingsample(C–FeN)ismuchhigherthanthatoftheFe-freesample(C–N).Additionally,theintermediatesofC–FeNformedduringeachsyntheticprocedurehavebeenthoroughlycharacterizedbymultiplemethods,andthefunctionofeachprocedurehasbeendiscussed.TheC–FeNsampleexhibitshighelectro-catalyticstabilityandsuperiorelectro-catalyticactivitytowardORRinalkalinemedia,withitshalf-wavepotential20mVlowerthanthatofcommercialPt/C(40wt%).Itisfurtherincorporatedintoalkalinepolymerelectrolytefuelcell(APEFC)asthecathodematerialandledtoapowerdensityof100mW/cm~2.

简介：GeneralizedSteiriertriplesystems,GS(2,3,n,g),areequivalenttomaximumconstantweightcodesoveranalphabetofsizeg+1withdistance3andweight3inwhicheachcodewordhaslengthn.ThenecessaryconditionsfortheexistenceofaGS(2,3,n,g)are(n-1)g≡0(mod2),n(n-1)g2≡0(mod6),andn≥g+2.Thesenecessaryconditionsareshowntobesufficientbyseveralauthorsfor2≤g≤11.Inthispaper,threenewresultsareobtained.First,itisshownthatforanygiveng,g≡0(mod6)andg≥12,ifthereexistsaGS(2.3.n.g)foralln,g+2≤n≤7g+13.thenthenecessaryconditionsarealsosufficient.Next,itisalsoshownthatforanygiveng,g≡3(mod6)andg≥15,ifthereexistsaGS(2,3,n,g)foralln,n≡1(mod2)andg+2≤n≤7g+6,thenthenecessaryconditionsarealsosufficient.Finally,asanapplication,itisprovedthatthenecessaryconditionsfortheexistenceofaGS(2,3,n,g)arealsosufficientforg=12,15.

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简介：Thestudyofoperatorssatisfyingσja(T)=σa(T)isofsignificantinterest.Doesσja(T)=σa(T)forn-perinormaloperatorT∈B(H)ffThisquestionwasraisedbyMecheriandBraha[Oper.Matrices6(2012),725–734].Inthenoteweconstructacounterexampletothisquestionandobtainthefollowingresult:ifTisan-perinormaloperatorinB(H),thenσja(T)\{0}=σa(T)\{0}.Wealsoconsidertensorproductofn-perinormaloperators.