简介：Inthispaper,thetotallynon-positivematrixisintroduced.Thetotallynon-positivecompletionaskswhichpartialtotallynon-positivematriceshaveacompletiontoatotallynon-positivematrix.Thisproblemhas.ingeneral,anegativeanswer.Therefore,ourquestionisforwhatkindoflabeledgraphsGeachpartialtotallynon-positivematrixwhoseassociatedgraphisGhasatotallynon-positivecompletion?IfGisnotamonotonicallylabeledgraphormonotonicallylabeledcycle,wegivenecessaryandsufficientconditionsthatguaranteetheexistenceofthedesiredcompletion.

简介：Leta,b,cberelativelyprimepositiveintegerssuchthata2+b2=c2.Je′smanowicz’conjectureonPythagoreannumbersstatesthatforanypositiveintegerN,theDiophantineequation(aN)x+(bN)y=(cN)zhasnopositivesolution(x,y,z)otherthanx=y=z=2.Inthispaper,weprovethisconjectureforthecasethataorbisapowerof2.

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简介：Fromtheevolutionaryvectordeacriptionofslowlysime-varyingnoiseprocess,ameasurefornon-stationarityisdeveloped.Itincludesboththenon-stationaritiesofpowerandofspectrumshape.Asasingleparameter,itisacomparablequantityfordifferentprocesses.Applicationtotheanalysisofprecisegearboxisprescnted.

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简介：InthispaperweconsidertheeigenvalueproblemofsemilinearellipticequationinR~n(n≥~3)-△u+α(x)u=λf(x,u),u∈H~1(R~n).

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简介：AbstractWith the widespread adoption of advanced tourniquets, the mortality rate of limb wound hemorrhage has decreased significantly, and non-compressible torso hemorrhage has gradually occupied the leading position of potentially preventable death, both in military and civilian circumstances. With the emergence of novel hemostatic devices and materials, strategies for the management of non-compressible torso hemorrhage have changed significantly. This review summarizes the current treatment strategies and types of equipment for non-compressible torso hemorrhage and suggests future research directions, hoping to provide a comprehensive review for the medical personnel and researchers engaging in this field.

简介：SinceGibbssynthesizedageneralequilibriumstatisticalensembletheory,manytheoristshaveattemptedtogeneralizedtheGibbsiantheorytonon-equilibriumphenomenadomain,howeverthestatusofthetheoryofnon-equilibriumphenomenacannotbesaidasfirmaswellestablishedastheGibbsianensembletheory.Inthiswork,wepresentaframeworkforthenon-equilibriumstatisticalensembleformalismbasedonasubdynamickineticequation(SKE)rootedfromtheBrussels-Austinschoolandfollowedbysomeup-to-dateworks.TheconstructedkeyistouseasimilaritytransformationbetweenGibbsianensemblesformalismbasedonLiouvilleequationandthesubdynamicensembleformalismbasedontheSKE.Usingthisformalism,westudythespin-Bosonsystem,ascasesofweakcouplingorstronglycoupling,andobtainthereduceddensityoperatorsfortheCanonicalensembleseasily.

简介：NortheastAsiaisconfrontedwithgravenuclearproliferationsituation.Thenuclearproliferationinthisregiondemonstratestwotrends:Oneishorizontalproliferation,whichcanbeinterpreted

简介：在法文教育文献中,不时会遇到两个词,即'educationnon-formelle'和'educationinformelle',与此相对应的英文是:'informaleducation'和'non-formaleducation'。它们经常都被译为非正规教育。《英汉教育词汇》(教育科学出版社,1982年版)便是一例。在该书中,'informaleducation'被译为非正规教育(参见第92页),'non-formaleducation'一词虽未专门列目,但已把'non-formaleducationdevelopmentcenter'译为非正规教育发展中心(参见第119页),因而这两个词的译名实际上未加以区别。

简介：CunanoclusterswereelectrochemicallydepositedonthefilmofaNafion-solubilizedmulti-wallcarbonnanotubes(CNTs)modifiedglassycarbonelectrode(CNTs-GCE),whichfabricatedaCu-CNTscompositesensor(Cu-CNTs-GCE)todetectglucosewithnon-enzyme.Thelinearrangeis7.0×10-7to3.5×10-3mol/Lwithahighsensitivityof17.76μA/(mmolL),withalowdetectionlimit2.1×10-7mol/L,fastresponsetime(within5s),goodreproducibilityandstability.

简介：在非通用的条件下面发生在平面快慢的系统的虚报现象被调查。什么时候批评歧管让非通用的褶层指由使用分析与最近发达的发作技术相结合的asymptotic的方法，一张虚报的存在被建立，一张虚报为存在的参数的asymptotic扩大被获得。

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简介：ThepaperistogeneralizetherigiditytheoremthatthespecialWeingartensurfaceisthespheretothecaseofsubmanifolds.Itisprovedthatanon-negativelyimmersedcompactsubmaifnoldinspaceformofconstantcurvatureisaRiemannianproductofseveraltotallyumbilicalsubmanifoldsifthemeancurvatureandthescalarcurvatureofthesubmanifoldsatisfyacertainfunctionrelation.

简介：Non-lineardynamics,fractals,periodicoscillations,bifurcations,chaos,andotherterminologieshavebeenusedtodescribehumanbiologicalsystemsintheliteratureforafewdecades.Theeightmanuscriptsincludedinthisspecialissuediscussedthehistoricalbackground,selectedtheoretical

简介：Inthecontextofadvectiondynamics,19experiments(Exps.)areperformedusingaquasi-geostrophicbarotropicvorticityequationmodeltoexploretheconditionforthemergenceofbinaryvorticesandtheself-organizationofthelargerscalevortex.Resultsshowthattheinitialdistancebetweenthecentersofbinaryvorticesandthenon-axisymmetricdistributionsoftheirinitialvorticityaretwofactorsaffectingthemergenceofbinaryvortices.Thereisacriticaldistanceforthemergenceofinitialsymmetricbinaryvortices,however,themergenceofinitialnon-axisymmetricbinaryvorticesisalsoaffectedbytheasymmetricstructureofinitialvortices.Theself-organizationprocessesin19experimentscanbeclassifiedintotwotypes:oneisthemergingofidentical,axisymmetricbinaryvorticesinwhichtheinteractionofthetwovorticesundergoesslowlychange,rapidchange,andtheformation,stretching,anddevelopmentofthefilamentsofvorticity,andthetwovorticesmergeintoasymmetricvortex,withitsvorticitypiledupintheinnerregioncomingfromthetwoinitialvortices,andthevorticityofthespiralbandintheouterregionfromthestretchingofthefilamentsofthetwoinitialvortices.Andtheothertypeisthemergingofthetwonon-axisymmetricinitialvorticesofanellipticvortexandaneccentricvortexinwhichtheellipticvortex,ontheonehand,mutuallyrotates,andontheotherhandmovestowardsthecenterofthecomputationaldomain,atthesametimeexpandsitsvorticityarea,andatlastformstheinnercoreofresultantstatevortex;andtheeccentricvortexmutuallyrotates,meanwhilecontinuouslystretches,andfinallyformsthespiralbandofresultantstatevortex.Theinteractionprocessischaracteristicofthevorticitypiledupintheinnercoreregionofresultantstatevortexoriginatingfromtheellipticvortexandthevorticityinspiralbandmainlyfromthesuccessivestretchandruptureoftheeccentricvortex.

简介：在这份报纸，我们介绍添加剂在normed空格的功能的不平等和二次的功能的不平等，并且在Banach空格证明功能的不平等的Hyers-Ulam稳定性。而且，我们介绍添加剂在非阿基米得的normed空格的功能的不平等和二次的功能的不平等，并且在非阿基米得的Banach空格证明功能的不平等的Hyers-Ulam稳定性。

简介：本文以语言学、认知心理学和学习论等理论为指导,根据中国学生在非目标语交际环境中对某些词素习得序列的研究成果,探讨词素习得在目标语与非目标语交际环境中的异同特点。作者提出,语言习得和语言学习是一个互为依托的认知过程,只要在语言课堂里能给学生提供有效而丰富的语言理解输入,语言习得是一种渐进而有序的必然现象。比较研究证明,学习与习得过程要受语言内部规律的制约。国内外词素习得序列的研究成果对语言教学和教材编写有积极意义。

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