简介：Onepredatortwopreysystemisaresearchtopicwhichhasboththetheoreticalandpracticalvalues.Thispaperprovidesanaturalconditionoftheexistenceofstablepcsitivesteady-statesolutionsfortheonepredatortwopreysystem.Underthisconditonwestudytheexistenceofthepositivesteady-statesolutionsatvicinityofthetripleeigenvaluebyimplicitfunctiontheorem,discussthepositivestablesolutionproblembifureatedfromthesemi-trivialsolutionscontainingtwopositivecomponentswiththehelpofbifurcationandperturbationmethods.

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简介：Inordertostabilisetheoperationoftheblastfurnaceandtoraiseitsoperationefficiency,researchworksfortheapplicationofmicrowaveandlaserscanningtechnologiestothemeasurementhavebeenintensivelycarriedoutatChinaSteelCorporation(CSC).Tomonitortheburdenprofileduringtheoperation,amicrowaveburdenprofilemeasuringsystemwasdeveloped.Thesystemconsistsofaradarunit,asignalprocessingsystem,andadrivingdevicewhichiscapableofrotatingtheradartoscantheburdensurfaceinaspecifieddirection.Anitrogencoolingsystemwasdesignedtoprotectthemeasurementsystem.AprototypeburdenprofilemeterwassuccessfullytestedinNo.1blastfurnacein2008,andapermanentonewasinstalledatNo.3blastfurnace.ThesystemhasprovidedusefulinformationforadjustingthechargingsequenceinNo.3blastfurnace.Foranotherapplication,3-Dlaserscanningtechnologyisemployedtomonitortheblastfurnaceliningcondition.Tothisend,adataregistrationmethodhasbeendeveloped,throughwhichtwomeasuredrangeimagessensedatdifferentperiodandlocationscanbefittedintothesamecoordinatesystem.Inpractice,theerosionoftheblastfurnaceliningcanbeestimatedwhenthecurrentinnerprofileiscomparedwiththattakenbeforetheblow-inoperation.ThistechnologyisalsoadoptedtoevaluatetheperformanceofgunningoperationintheblastfurnacesatCSC.

简介：Sclerosing上皮状的纤维肉瘤(SEF)是纤维肉瘤的稀罕、糟糕定义的变体，但是对与穷人一起的化疗和进步通常感觉迟钝预后。我们报导irinotecanhydrochloride(CPT-11)的奇妙的效果在rescuing的化疗在几个治疗方法以后经历了复发的有从突现的状况的不正常的SEF的一个病人。CPT-11的小剂量予病人被以，与哪个，表面的质量(颈的淋巴节点)的尺寸逐渐地减少了在5天内由肉眼观察了。X射线和CT图象在肿瘤的尺寸证明了显著减小。CPT-11为这个好攻击的肉瘤的治疗是珍贵的。处于肉瘤压迫引起的紧急情况的状况，管理topoisomerase我禁止药的可容忍的小剂量能是一种有益的选择。

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简介：UnlikethepreviousresearchworksanalyzingthestabilityoftheT-S(Takagi?Sugeno)fuzzymodel,anextensiononthestabilityconditionofT-Sfuzzysystemswithadifferentstrategyisprovided.Inthestrategyanewvariable,whichisrelativetothegradeoffuzzymembershipfunction,isintroducedtothestabilityanalysisandanewstabilityconclusionisdeduced.Thedefinitionofstabilityconditioninthispaperisdifferentfrompreviousworks,thoughtheyaresimilarinform.Withtheproposedmethod,thesimulationinflightcontrollawshowsabettereffectiveness.

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简介：CellularspacingselectionofCu-27.3wtpctMnalloyhasbeeninvestigatedbylasersurfacerapidresolidificationexperiments.Theexperimentalresultsshowthatthereexistsawidedistributionrangeincellularspacingunderultra-hightemperaturegradientandrapidsolidificationconditionsandtheaveragespacingdecreasewithincreaseofthegrowthrate.TheexperimentalresultsarecomparedwiththecurrentKGTmodelforrapidcellular/dendriticgrowth,andareasonableagreementisfound.

简介：AFourier-Chebyshevpseudospectralschemeisproposedforthree-dimensionalvorticilyequationwithunilaterallyperiodicboundarycondition.Thegeneralizedstabilityandconvergenceareanalysed.Thenumericalresultsarepresented.

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简介：Inthispaperthefollowingresultisobtained:Supposef(x.u,v)isnonnegative,con-tinuousin(a,b)×R^+×R^+;fmaybesingularatx=a(and/orx=b)andv=0;fisnonde-creasingonuforeachx,v,nonincreasingonv[oreachx.u;thereexistsaconstantq∈(0,1)suchthatt^qf(x,t^-1u,tu)≤f(x,u,u)≤λqf(x,λ^-1u,λu),V00,e(x)=G(x,x),G(x,y)isGreen'sfunctionofabovementionedboundaryvalueproblem(whenf(x,u,v)≡O).

简介：异步的滚动技术被采用为积累的十通行证感冒滚动，凸缘板钢，并且为焊接H节钢分别地。metallographic微观结构分析，张力的测试和退火的测试为冷卷的片被执行；因此，到谷物，张力的力量，在谷物尺寸之间的关系和在退火以后的异步的滚动过程参数的宽度的长度的比率能被获得。在异步的滚动和卷的片的砍的变丑之间的关系能使异步的滚动可以改进的机制的合理解释成为紧张的试验性的结果表演积累了卷的片的精力和凸缘板钢的力量。这份报纸为在改进凸缘板钢的力量的异步的滚动的申请提供一个理论基础。

简介：Thesteadytwo-dimensionalmagnetohydrodynamicstagnationflowtowardsanonlinearstretchingsurfaceisstudied.Theno-slipconditiononthesolidboundaryisreplacedwithapartialslipcondition.Ascalinggrouptransformationisusedtogettheinvariants.Usingtheinvariants,athird-orderordinarydifferentialequationcorrespondingtothemomentumisobtained.Ananalyticalsolutionisobtainedinaseriesformusingahomotopyanalysismethod.Reliabilityandefficiencyofseriessolutionsareshownbythegoodagreementwithnumericalresultspresentedintheliterature.Theeffectsoftheslipparameter,themagneticfieldparameter,thevelocityratioparameter,thesuctionvelocityparameter,andthepowerlawexponentontheflowareinvestigated.Theresultsshowthatthevelocityandshearstressprofilesaregreatlyinfluencedbytheseparameters.

简介：AbstractBackground:Grayscale image attributes of computed tomography (CT) of pulmonary scans contain valuable information relating to patients with respiratory ailments. These attributes are used to evaluate the severity of lung conditions of patients confirmed to be with and without COVID-19.Method:Five hundred thirteen CT images relating to 57 patients (49 with COVID-19; 8 free of COVID-19) were collected at Namazi Medical Centre (Shiraz, Iran) in 2020 and 2021. Five visual scores (VS: 0, 1, 2, 3, or 4) are clinically assigned to these images with the score increasing with the severity of COVID-19-related lung conditions. Eleven deep learning and machine learning techniques (DL/ML) are used to distinguish the VS class based on 12 grayscale image attributes.Results:The convolutional neural network achieves 96.49% VS accuracy (18 errors from 513 images) successfully distinguishing VS Classes 0 and 1, outperforming clinicians’ visual inspections. An algorithmic score (AS), involving just five grayscale image attributes, is developed independently of clinicians’ assessments (99.81% AS accuracy; 1 error from 513 images).Conclusion:Grayscale CT image attributes can be successfully used to distinguish the severity of COVID-19 lung damage. The AS technique developed provides a suitable basis for an automated system using ML/DL methods and 12 image attributes.

简介：AclassΦof5-dimensionalfunctionswasintroducedandanexistenceanduniquenessofcommonfixedpointsforafamilyofnon-selfmappingssatisfyingaφiquasi-contractiveconditionandacertainboundaryconditionwasgivenoncompletemetricallyconvexmetricspaces,andfromwhich,moregeneraluniquecommonfixedpointtheoremswereobtained.Ourmainresultsgeneralizeandimprovemanysametypecommonfixedpointtheoremsinreferences.

简介：Inthispaper,theeffectsofsecond-orderdifference-frequencywaveforcesontheglobalmotionofanoffshorewindturbinesystemwithalargedisplacementunderthesurvivalconditionarestudied.Inthiscase,thehydrodynamicforceisthemainforcebecausethebladesarefeatheredtoreducetheliftingforce.Thefirst-orderhydrodynamicforcesarecalculatedbyWADAM,whilethesecond-orderwaveforcesarecalculatedbyacustomizedMATLABmodule.ThenthehydrodynamiccoefficientsaretransferredtothewindturbineanalyticalcodeFAST.Throughthecomparisonsofdynamicresponsesbetweenthefirst-andsecond-ordernumericalmodels,itisfoundthatthesecond-orderwaveforcessignificantlyinfluencethemotionoffloatingwindturbineunderthesurvivalcondition.Moreover,neglectingthesecond-orderforcesignificantlyunderestimatesthetensionforcesinthemooringlines.

简介：到目前为止它是不清楚的是否演变氧的建筑群(OEC)的版本包括PsbO，PsbP，和PsbQ蛋白质的子单元被photosystemII(PSII)膜的phosphorylation在轻应力下面影响。在这个工作，不同phosphorylatedPSII膜从菠菜被获得。Phosphorylation部分在轻应力下面从PSII膜压制了PsbO，PsbP，和PsbQ蛋白质的版本。反应的氧种类包括superoxide阴离子，氢过氧化物和氢氧根基，在non-phosphorylated和phosphorylatedPSII膜涉及PsbO蛋白质的小部分的版本，然而并非在PsbP和PsbQ蛋白质的版本。建议的结果，PsbO，PsbP，和PsbQ蛋白质的版本部分是，这phosphorylation在PSII膜调整的所有，和在在non-phosphorylatedPSII膜的OEC子单元的版本的反应的氧种类的角色与在phosphorylatedPSII膜一样。

简介：有在一个减少的蚂蟥神经原模型的混乱的增加时期的串联的机制与人诊所轨道作为一个僵绳节点限制周期的分叉被建议令人满意“小脑叶条件”，而不是不可靠的大祸。在每刺增加，新尖铁出现在爆炸ers的刺的阶段的结束。

简介：Todealwiththestaircaseapproximationprobleminthestandardfinite-differencetime-domain(FDTD)simulation,thetwo-dimensionalboundaryconditionequations(BCE)methodisproposedinthispaper.IntheBCEmethod,thestandardFDTDalgorithmcanbeusedasusual,andthecurvedsurfaceistreatedbyaddingtheboundaryconditionequations.Thus,whilemaintainingthesimplicityandcomputationalefficiencyofthestandardFDTDalgorithm,theBCEmethodcansolvethestaircaseapproximationproblem.TheBCEmethodisvalidatedbyanalyzingnearfieldandfarfieldscatteringpropertiesofthePECanddielectriccylinders.TheresultsshowthattheBCEmethodcanmaintainasecond-orderaccuracybyeliminatingthestaircaseapproximationerrors.Moreover,theresultsoftheBCEmethodshowgoodaccuracyforcylinderscatteringcaseswithdifferentpermittivities.