简介：Introduction,Theroleofleftventriculographyhasevolvedradicallyoverthelasthalf-century,buthasreceivedlittlenoticeintheacademicliterature.ThetechniqueandfrequencyofuseofleftventriculographyvaryacrossregionsoftheUnitedStates,institutions,andindividuals.

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简介：ULTRAFunctionEnterpriseCompanyLimited(UFECL)isaSino-foreignjointventurewhichpro-ducesthecompoundsofREwithhighpurityinChina.Itpossessesadvancedinternationalseparationtechnol-ogyofrareearthandanalytical-testinginstrument.

简介：Thedomainoflinearfunctionf(x)=ax+b(a≠0)isR,itsrangeisR.Thedomainofinverseproportionfunctionf(x)=(k/x)(k≠0)is{x|x≠0},itsrangeisB={y|y≠0}.Thedomainofquadraticfunction,f(x)=ax~2+bx+c(a≠0)isR,itsrangeisB.B={y|y≥(4ac-b~2)/4a},whena>0;B={y|y≤(4ac-b~2/4a)},

简介：Wehavelearnedtheconceptofthefunc-tioninthejuniorhighschool.Itiswhatde-scribeslikethis:Establishtohavetwovariablesxandyinavarietyofprocess.Ifyisauniqueelementassignedtoeveryx,sayingyisafunctionofx;xiscalledtheindependentvariable.

简介：Whenyoufindthetangentlinetoacurveatonepointandthevelocityofanobject,youwillfindbothoftheminvolvingthesametypeoflimit.Let’sstartwiththedifferencequotient.

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简介：Hereweexploresomefundamentalaspectsofwhatmaybetermedasanewarithmeticfunction（definednotionallyastheTfunction）togetherwithitspossibleinverse（TI）,asitisnotinfrequentdiscussionamongthenumbertheorists.

简介：The11thFiveYearPlanhasdividednationalfunctionalzonesinthebasicunitofcounty-leveladministrativeregion.AfterimplementationofnationalMajorFunction-orientedZones(MFOZ)atprefectureandcountylevels,thespatialdevelopmentsequencemustbespecified,developmentintensitymustbelimited,orientedzonesmustbedesignatedand"redline"areasofspatialgovernancemustbedefined.Inviewoftheabove,choosingatypicalcountyareaandexploringitsfunctionalzoningafterorientingitsmajorfunctionswillsupplyreferenceforcarryingoutthenationalspatialplanninginthe12thFiveYearPeriod,anditwillalsoprovideexperienceforthestudyoffunctionregionalizationwhichisthethemeofMFOZinthepresentacademiccircles.Inthispaper,theauthorstakeShangyuCountyasanexampletostudythegeneralprinciples,trainofthoughtofcounty-levelfunctionalregionalizationindevelopment-optimizedareas,andtoexploreitsreasonablefunctionalzoningplan.Consequently,theauthorspresentfiveprinciplesandsuggestafunction-orientedzoningplanwith2levelsand4types.

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简介：ＡＣＨＡＮＧＥＤＮＡＭＥＷＩＴＨＡＮＥＶＯＬＶＩＮＧＦＵＮＣＴＩＯＮ￥ＸｉｅＺｈｅｎｍｉｎｇＯｎＳｅｐｔｅｍｂｅｒ２０．１９９４，ＭｉａｎｚｈｕＣｏｕｎｔｙ，ＳｉｃｈｕａｎＰｒｏｖｉｎｃｅｃｈａｎｇｅｄｔｈｅｎａｍｅｏｆｉｔｓＦａｍｉｌｙＰｌａｎｎｉ...

简介：Forasystemofflexiblepolymermolecules,theconceptsoftwoconcentrations,namelythesegmentalandthemolecularconcentrations,havebeenproposedinthispaper.Theformerisequivalenttothevolumefraction.Thelattercanbedefinedasthenumberofthegravitycentersofmacromoleculesinaunitvolume.Thetwoconcentrationsshouldbecorrelatedwitheachotherbytheconformationalfunctionofthepolymerchainandshouldbediscussedindifferentthermodynamicequations.OnthebasisoftheseconceptsithasbeenprovedthattheFlory-Hugginsentropyofmixingshouldbetheresultofthemixing'idealgasesofthegravitycentersofmacromolecules'.Thegeneralcorrelationbetweenthefreeenergyofmixingandthescatteringfunction(structuralfactor)ofpolymerblendshasbeenstudiedbasedonthegeneralfluctuationtheory.WhentheFlory-Hugginsfreeenergyofmixingisadopted,thedeGennesscatteringfunctionofapolymerblendcanbederived.

简介：Inthispaper,therelationshipbetweenRiemann-Liouvillefractionalintegralandthebox-countingdimensionofgraphsoffractalfunctionsisdiscussed.

简介：稳定河槽几何学在相当很长时间吸引了水力的工程师的注意。各种各样的标准被建议了解释一条隧道的自我形成的几何学。基于流动系统，和使用的几何编程的最佳的费用结构，现在的调查提出客观功能产出Lacey的稳定河槽尺寸。功能可能是有用的披露稳定河槽几何学的许多详情。

简介：Inthispaper,theauthorsintroduceakindofreduciblealgebroidfunctions,thatisgeneralalgebroidfunctionsandobtaintwofundamentaltheoremsofgeneralalgebroidfunctions.Atlast,asanapplication,wegeneralizedatheoremofLiGuoping’s.

简介：ThispapergivesamethodofdescentforthelocallyLipschitzianfunction.Itisassumedthatthegeneralizedsubgradientsetofthedifferentiablepointisasingletonpoint.Weintroduceanimplementablealgorithmwhichisgloballyconvergent.Numericalexamplesshowtheimplementationandefficiencyofthealgorithm.

简介：Inordertoconstructestimatingfunctionsinsomeparametricmodels,thispaperintroducestwoclassesofinformationmatrices.Somenecessaryandsufficientconditionsfortheinformationmatricesachievingtheirupperboundsaregiven.Fortheproblemofestimatingthemedian,someoptimumestimatingfunctionsbasedontheinformationmatricesareacquired.Undersomeregularityconditions,anapproachtocarryingoutthebestbasisfunctionisintroduced.Innonlinearregressionmodels,anoptimumestimatingfunctionbasedontheinformationmatricesisobtained.Someexamplesaregiventoillustratetheresults.Finally,theconceptofoptimumestimatingfunctionandthemethodsofconstructingoptimumestimatingfunctionaredevelopedinmoregeneralstatisticalmodels.

简介：人的耳朵是为正常通讯的听觉的一台精细的感觉仪器，并且它的合适的工作高度依赖于mitochondrialoxidativephosphorylation。为nonsyndromic和aminoglycoside-inducedhearing损失的第一mitochondrial点突变在1993被识别。从那以后，很多个继承mitochondrial变化在听见损失被含有。大多数为联系mitochondrialdisorder的听觉损失负责的分子的缺点是在12SrRNA基因和tRNA基因的变化。在这评论，在对正常听觉机制和mitochondrial的短描述以后，我们构画出在联系聋的mitochondrialmutations的鉴定被做了的最近的进展，并且讨论mitochondrial机能障碍怎么贡献听觉损失。

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简介：在这份报纸，作者显示出古典希腊语的第二十三个字母功能，几已知的结果被改进和一些的某monotonicity和凹度新asymptotically锋利的估计为这功能被获得。另外，把新结果用于希腊语的第二十三个字母功能，作者为Eulers的近似评估改进著名更低、上面的界限经常。