简介：Thepapermainlydiscussedtheinclusionsandthepurityofmoltensteelandcontinuouscastingslabintapping,argon-bubbling,LFrefining,VDvacuumdegassingandcontinuouscastingtundishprocessesduringthesteelmaking.Atthesametime,theimprovementmeasuresofsmeltingprocesswereindicated.Si-Al-BaalloyandCa-Sideoxidationeventuallywereadoptedin120tconverter.Theamountofthetappingwasabout135t.AfterfeedingAlwireandaddingpremeltedslaginfurnace,pickedupthesampleafterthebottomargon-bubblingwhichhadbeendoneforover5minutes.Thelime,fluorite,calciumcarbideandAlpowderswereusedtoproducewhiteslaginLF.Thenthealloycompositionswereadjusted.FeedingCawireafterthetreatment,andtookoutover5minutes’softconverting.TheVDvacuumdegassingshouldbekeptfor15minutesbellow1.5torr.Afterthat,Cawirecouldbefed.Finally,castingtheslabintothesizeof260mm×2280mm.Theresearchshowed:（1）Inconverterprocedure,thedephosphorizationeffectturnedoutgoodwhentheratioofdephosphorizationwas88.2%.Thefinaloxygenandnitrogencontentssatisfiedthedemand,andtheeffectsofthefinalcontrolandbottom-blowingweregood.（2）DuringtheLFrefiningprocess,thenitrogenseldomadded.Itshowedtheexcellentsealingeffectandtheoptimizationoftechniquesonoperatingwhichhadreachedthedomesticleadinglevel.（3）AftertheVDvacuumdegassingprocess,theSi,Mn,P,O,Ncontentswerealmoststeady.Thesulphurcontentkeptdecreasingto0.003%andthe[H]contentwas1.9ppm.Theeffectofthevacuumdegassingprocesswasgood.（4）Theoxygencontentwascontrolledat11ppminthecontinuouscastingprocess,andthenitrogencontenthadincreasedto53ppmwiththeΔ[N]28ppm.Therefore,inordertopreventthemoltensteelfromreoxidization,theprotectionofthecontinuouscastingshouldbecontrolledrigorously.（5）TheinclusionsthatexistedbeforetheLFrefiningprocessweremostlyMnO-Al2O3-SiO3compositeinclusions

简介：Inthispaper,acompound-typeinclusionintervalofbasicconeigenvaluesof(com-plex)matrixisobtained.Thecorrespondingboundarytheoremandisolatingtheoremaregiven.

简介：Weintroducefourtypesofspecialeigenvalueswhichlieontheboundaryofcertaininclusionregionsforthespectrumofacomplexsquarematrix,i.e.,R_r(G_c)-,O(a)-,B_r(B_c)-.andOB(a)-eigenvalues.Thenwecharacterizetheseeigenvaluesandtheircorrespondingeigenvectorsforirreduciblematrices,Finallywegivesomenewsufficientconditionsforanirreduciblecomplexmatrixtobenonsingular.

简介：Whenstudyingtheregularpolygonalinclusionin1997,NozakiandTayadiscoverednumericallysomeremarkablepropertiesofEshelbytensor:EshelbytensoratthecenterandtheaveragedEshelbytensorovertheinclusiondomainareequaltothatofacircularinclusionandindependentoftheorientationoftheinclusion.ThenKawashitaandNozakijustifiedthepropertiesmathematically.Inthepresentpaper,someotherpropertiesofaregularpolygonalinclusionarediscovered.WefindthatforanN-foldregularpolygonalinclusionexceptforasquare,thearithmeticmeanofEshelbytensorsatNrotationalsymmetricalpointsintheinclusionisalsoequaltotheEshelbytensorforacircularinclusionandindependentoftheorientationoftheinclusion.Furthermore,intwocorollaries,wepointoutthatEshelbytensoratthecenter,theaveragedEshelbytensorovertheinclusiondomain,andthelineintegralaverageofEshelbytensorsalonganyconcentriccircleoftheinclusionareallidenticalwiththearithmeticmean.

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简介：Non-metallicinclusionisthemainreasonforthepresenceofsurfacedefectsincold-rolledsteelstrip.Inthisstudy,thecomposition,morphology,andsizeofthenon-metallicinclusioninhot-rolled304stainlesssteelstripsareanalyzed.Cold-rolled304stainlesssteelstripswithdifferentcold-rollingreductionhavebeenprepared,andthemorphologyandsizeofinclusioninthesecold-rolledstripsarealsoanalyzed.Furthermore,thedeformationbehaviorofanon-metallicinclusionduringthecold-rollingprocessisstudied.TheresultsshowthatCaO-SiO2-MgO-Al2O3,akindofbrittlecompoundoxide,isthemaintypeofinclusioninhot-rolled304stainlesssteelstrips.Duringthecold-rollingprocess,ductiledeformationofthistypeofinclusionisnotobvious,wherelargeinclusionsarecrushed,andtheaveragesizeofinclusionsincold-rolledstripsdecreasedwhilethecold-rollingreductionincreased.

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简介：<正>Inthemostrecentreportofinjurydataon15sportsfromtheU.S.NationalCollegiateAthleticAssociation(NCAA)InjurySurveillanceSystemoveraspanof16years(1988-2004),ankleligamentsprainswerethemostcommoninjury.Residualsymptomssuchasrecurrentsprains,pain,instability,andgivingwayarecommonafteraninitial,acuteligamentsprain.Chronicankleinstability(CAI)isoneofthesecommonproblems,andhasenjoyedincreasedinterestintherecentliterature.However,CAIremainsapoorly-definedandunderstoodcondition.

简介：Basedonthetheoryofelasticdynamics,thescatteringofelasticwavesanddynamicstressconcentrationinfiber-reinforcedcompositewithinterfacesarestudied.Analyticalexpressionsofelasticwavesindifferentmediumareasarepresentedandananalyticmethodofsolvingthisproblemisestablished.Themodecoefficientsaredeterminedbymeansofthecontinuousconditionsofdisplacementandstressontheboundaryoftheinterfaces.Theinfluenceofmaterialpropertiesandstructuralsizeonthedynamicstresscon-centrationfactorsneartheinterfacesisanalyzed.Itindicatesthattheyhaveagreatinfluenceonthedynamicpropertiesoffiber-reinforcedcomposite.Asexamples,numericalresultsofdynamicstressconcentrationfac-torsneartheinterfacesarepresentedanddiscussed.Thispaperprovidesreliabletheoreticalevidenceforthestudyofdynamicpropertiesinfiber-reinforcedcomposite.

简介：AcomplexmatrixAissaidtobeamatrixrealizationofthedigraphDifDistheassociateddigraphofA,andAissaidtohavethepropertyBifeverysingularvalueofAiscontainedintheunionofBrualdi-typeintervals.AdigraphDissaidtobeaforcibleB-digraphifeverymatrixrealizationofDhasthepropertyB.Inthispaper,wegiveasufficientconditionforamatrixtohavethepropertyBandcharacterizetheforcibleB-digraphs.

简介：Fluidinclusionsinmineralsfilledinporesofreservoirrockscanbeusedasagoodindicatorofporegenesisanddevelopmentsoastoshedlightonoilgeneration,migrationandaccumulation.TherelationshipbetweenporeevolutionandoilgenerationhasbeenestablishedbasedonfluidinclusionstudiesontheLowerOrdoviciancarbonatereservoirstrataintheOrdosBaisn,NorthwestChina.Sevenstagesofporositydevelopmentcanberecogmized.i.e.,thepenecontemporaneous,theearlyandmiddle-latediagenetic,thesupergene,theearly,middleandlatere-buryingstages.Thedissolutionporesanfissuresformedinthesupergeneandmiddle-latereburyingstageandthestructuralfracturesformedinthelatere-buryingstageconstitutethemajortrapsofoilandgas.ThemajorphaseofoilmigrationandaccumulationtookplacebetweenLateJurassicandCretaceous,Correspondingtothemiddleandlatere-buryingstages.ThegenerationandaccumulationofoilcanbecloselyrelatedtoYenshaniantectonics.

简介：现在的纸处理包括的球状地对称的变丑--矩阵问题，它由一个无限的各向同性的矩阵和球状地一致的各向异性的压电的包括组成。在二个阶段之间的接口应当是完美的，系统在无穷受到一致装载。准确答案为稳固的球形的压电的包括和各向同性的矩阵被获得。当系统受到遥远的拖拉时，分析结果证明显著自然在球形的包括存在。一个无限的压力出现在包括的中心，这被表明。而且，当系统受到一致紧张时，成穴可以发生在包括的中心，当当应用拖拉是一致压力时，一个黑洞可以在包括的中心被形成时。不同显著自然的外观仅仅取决于一个非维的材料参数和遥远的拖拉的类型，当时独立于拖拉的大小。

简介：这篇论文认为在magneroelectroelastic联合由包括和矩阵组成的合成材料的多地是magnetoelectroelastic材料。机械，电并且在椭圆的柱体包括附近的磁场被复杂潜力提出。在包括内，种类，电并且磁场被发现一致并且与椭圆的形状变化。当包括被归结为一个裂缝时，，接口，种类，电场力量和磁场力量等于相应的遥远的，它能被用作边界条件。特殊情况软、透不过的包括，线包括和一个裂缝问题例如僵硬、可渗透的包括，详细被讨论。

简介：Thesupramolecularinclusioncompoundofβ-cyclodextrin(β-CD,host)with(η5-cyclopentadienyl)tricarbonylmanganese[MnCp(CO)3,guest]wasobtainedinacrystallinestate.Thehost-guestcompoundisthermallystableanddonotliberatetheguestonheatingat100$invacuum.Itwascharacteriedbyelementalanalysis,1HNMR,differentialscanningthermal(DSC)analysisandTLC.ContinueousvariationplotbyNMRmethodshowsthatβ-CDformed1:1inclusioncompoundwithMnCp(CO)3.Onthebasisof1HNMRspectraandthemodelbuildingwithCoreyPaulingKoltum(CPK)models,themostprobableinclusionmodeisproposed.

简介：Thepurposeofthispaperistopresentaniterativeschemeforfindingacommonelementofthesetofsolutionstothevariationalinclusionproblemwithmulti-valuedmaximalmonotonemappingandinverse-stronglymonotonemappingsandthesetoffixedpointsofnonexpansivemappingsinHilbertspace.Undersuitableconditions,somestrongconvergencetheoremsforapproximatingthiscommonelementsareproved.TheresultspresentedinthepapernotonlyimproveandextendthemainresultsinKo-rpelevich(EkonomikaiMatematicheskieMetody,1976,12(4):747-756),butalsoextendandreplenishthecorrespondingresultsobtainedbyIidukaandTakahashi(NonlinearAnalTMA,2005,61(3):341-350),TakahashiandToyoda(JOptimTheoryAppl,2003,118(2):417-428),NadezhkinaandTakahashi(JOptimTheoryAppl,2006,128(1):191-201),andZengandYao(TaiwaneseJournalofMathematics,2006,10(5):1293-1303).

简介：Takingtheshort-fibercompositematerialsasengineeringback-ground,utilizingtheexistingbasicsolutionsofsingleinclusionandsinglecrack,theplaneproblemofverticalcontactinteractionsbetweenlinecrackandrigidlineinclusionininfiniteplane(matrix)fromtheviewpointofcrackfracturemechanicsisstudied.Accordingtoboundaryconditions,asetofstandardCauchy-typesingularintegralequationsoftheproblemisobtainable.Besides,singularindexes,stressesandstressintensityfactorsaroundthecontactpointareexpressed.Numericalexamplesaregiventoprovidereferencestoengineering.

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简介：经由它为在局部地凸的拓扑的空格的珍视集合的功能的珍视单人赛的问题和固定的点定理的部分不可分的包括的连续解决方案的存在被讨论。珍视单人赛的问题的证明将基于Leray-Schauder固定的点定理。而且，这个答案的可控制性被学习。

简介：ＡｎｅｘｐｅｒｉｍｅｎｔａｌｓｔｕｄｙｏｎｆｒａｃｔｕｒａｌｆｅａｔｕｒｅｓｏｆｃｏｎｃｒｅｔｅｓａｍｐｌｅｓｃｏｎｔａｉｎｉｎｇｈａｒｄｉｎｃｌｕｓｉｏｎＺＨＡＯＹＯＮＧＸＵ（许昭永）１）ＢＩＮＷＡＮＧ（王彬）１）ＪＩＮＭＩＮＧＺＨＡＯ（赵晋...