简介：Ofitstotalexportvolume,theproportionofChina’snewandhightechnologyproductsandhighvalue-addedproductsisextremelylow.Itspuretechnologicalexportrateisonly2percentofthetotal.Therefore,alongwiththetransformationofthemodeofgrowthofChina’snationaleconomy,acorrespondinggrowthmodetransformationshouldtakeplaceinitsforeigntradesector,anditisnecessarytoachieveasignificantchangeinitsimportandexportproductmix.

简介：DensityofmoltenNiandNi-Walloyswasmeasuredinthetemperaturerangeof1773～1873Kwithasessiledropmethod.ThedensityofmoltenNiandNi-Walloystrendstodecreasewithincreasingtemperature.ThedensityandmolarvolumeofthealloystrendtoincreasewithincreasingWconcentrationinthealloys.ThecalculationresultshowsanidealmixingofNi-Walloys.

简介：Thevelocityprofile,turbulenceintensityprofile,streakystructureandburstingfrequencyinturbulentboundarylayersoveraflatplatewithcompliantcoatingswereinvestigatedbyLaserDopplerAnemometryandcondi-tionalsamplingtechniques.Thisexperimentledtotheconclusionsthatinboundarylayerflowsonacompliantwall,ascomparedwiththatonarigidwall,theloglawregionwasextendedfurtherawayfromthewall,andthatthemaximumvalueofeachturbulenceintensityprofileinthenearwallregionwasreducedandtheburstingfrequencyobviouslydecreasedwiththecompliantcoatings.Onepointworthyofnoticewasthattheaboveresultswereverymuchlikethoseofpolymerdragreductionexperiments.

简介：精子chromatin/DNA正直为父亲的基因信息的精确传播是必要的，并且正常精子染色质结构为使肥沃的精子是重要的能力。精液的常规检查，包括精子集中，活动性和形态学，不在精子染色质结构识别缺点。为它的评价的精子DNA损坏和许多方法的起源被描述。精子DNA损坏的评估看起来是为估计男富饶潜力的一个有用工具在活体内和在试管内。后代上的精子DNA缺点的可能的影响也被讨论。

简介：ＥｆｆｅｃｔｏｆｔｈｅＩｎｔｅｒａｃｔｉｏｎｏｆＤｉｆｆｅｒｅｎｔＳｃａｌｅＶｏｒｔｉｃｅｓｏｎｔｈｅＳｔｒｕｃｔｕｒｅａｎｄＭｏｔｉｏｎｏｆＴｙｐｈｏｏｎｓＣｈｅｎＬｉａｎｓｈｏｕ（陈联寿）（ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＭｅｔ６ｏｒｏｌｏｇｉｃ...

简介：TheallelicdistributionofEcoRIandBamHIfragmentsofrasfamilygenesbetweenthehumanprimarygastriccancertissuesandthecorrespondingadjacentnormaltissuesdidnotshowanydifferences.ThreegenotypesofBamHIrestrictionfragmentslengthpolymorphismofc-H-raswererevealed.NosignificantdifferencesintheRFLPswereobservedbetweennormalindividualsandgastriccancerpatients.Fourprotooncogenes,c-H-ras,N-ras,c-mycandc-fos,werefoundtobetranscriptionallyactiveinthegastriccancertissuesinsomecasesexamined.Thecomparisonoftheexpressionoftheseoncogenesbetweenthemalignanttissuesandthecorrespondingnormaltissuesshoweddifferentialpatterns.Theexpressionofc-H-rasatcellularlevelwasdetectedwithinsituhybridization.Theenhancedexpressionofc-H-rasinthegastriccancercellswasdemonstrated,butthedegreeoftheexpessionamongthecancercellswasshowntobeheterogeneous.Inaddition,theenhancedexpressionofc-H-raswasseeninthei

简介：<正>CRUSTOBODYSTRUCTUREOFCHINAANDDISTRIBUTIONOFROCKGOLDOREDEPOSITSHuangRuihua(ChangshaInstituteofGeotectonics,AcademiaSinica,410013,Hunan,China)rockgoldoredeposit,crustobodystructure,China.Chinacontinentisdividedintofourcrustobodiesfromeasttowest.Thereiswell-knownJinguashirockgolddepositinEastAsiacontinentalmargincrustobody.Goldmet-allizationisverywelldevelopedinEastAsiacrustobody.Therearemainlyrockgoldorede-positsrelatedtoArcheangreenstoneformationandMesozoic-Cenozoicrockgoldoredepositsinit.TherearemainlyPalaeozoicrockgoldoredepositsofgeosynclinaltypeandCenozoicrockgoldoredepositsofdiwa(depression)typeinCentralAsiacrustobody.SouthAsiacrustobodypossessesgreatpotentialinrockgoldmetallization.Asawhole,prospectingexplorationandexploitationofrockgoldareverywelloffutureinChina.

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简介：AnenhancedsystemarchitectureofWeb-basedproductstructureandconfigurationmanagementsystemalongwithits,functionsareispresented.Thekeytechniques,suchasconstructionofobjectmodelsofproductstructureandproductconfiguration,hybridapproachmethodinproductconfigurationmanagement,sharingandintegrationofheterogeneousproductdata,integrationwithothersub-systems,arediscussedtoo.AprototypesystemisdevelopedbyJ2EEtechnology.

简介：Takingintoconsiderationthecharacteristicsofnowadayssociety,thispaperhasadvancedthesystemicthinkingonthebuildingofEnterprises'"ThreeCycle"IntegrationStructure.Afterpointingout,theprinciplesofoptimizationbetweentheoreticstructureandexecutivestructure,thispaperhasbroughtforwardtheEnterprises'"ThreeCycle"IntegrationStructureanditsinherentrelationshipamongeachcycle.

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简介：ThecompositionandstructureofcyclicsulfoxidederivativePd(Ⅱ)complexwereinvestigated.Thecoordinatednumberwasstudiedwithslopemethod.Thecoordinationnumberis2inloweracidity,butitis3inhigheracidity.Fourmethods,UV(ultraviolet)spectra,FrIR(Fouriertransforminfrared)spectra,1H-NMR(nuclearmagneticresonance)spectra,and13C-NMRspectra,wereusedtodeterminethecoordinatedatomincomplex.PdiscoordinatedwithOandSatominS=Ogroupinloweraciditymedia.Theconversionofcoordinationbondappearswithanincreasingtime.PdiscoordinatedwithSatominS=Ogroupinhigheraciditymedia,andinter-ligand-transferreactionoccurs.

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简介：Theexactstructureofanarginine-carboxylatesaltbridgeindifferentchemicalenvironmentsremainsacontroversialproblem.Inthepresentwork,thezwitterionicandneutralformsofarginine-carboxylatesaltbridgewerestudiedbytheB3LYP/6-311G(d,p)//PM3method.Itturnsoutthattheneutralformsaremorestablethanthezwitterioniccoumterpartsingasphase.However,whnenboundbyα-cyclodextrin,thezwitterionicformsbecomemorestablethanthecorrespondingneutralones.Itissuggestedthatthehydrophobicenvironmentprovidedbythecyclodextrincavityleadstosuchbehavior.Therefore,thesaltbridgestillcouldbeinazwitterionicforminthehydrophobicinterioroftherealproteins.

简介：Hamiltonianstructureofarigidbodyinacircularorbitisestablishedinthispaper.Withthereductiontechnique,theHamiltonianstructureofarigidbodyinacircularorbitisderivedfromLie-Poissonstructureofsemidirectproduct,andHamiltonianisderivedfromJacobi’sintegral.TheabovemethodcanbegeneralizedtoestablishtheHamiltonianstructureofarigidbodywithaflexibleattachmentinacircularor-bit.Atlast,anexampleofstabilityanalysisisgiven.

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简介：Thetitlecompounds4,4'-oxobis(propham)((?)n)(C20H24N2O5,Mr.=372.41)wassynthesizedbytheadditionreactionofcorresponding4,4'-oxobisphenyldiisocyanatewithisopropanol.ThecrystalstructurewasdeterminedbyX-raydiffractionmethod.Thecrystalistriclinicsystem,spacegroupP-1witha=8.5107(17),b=9.1164(18),c=14.5701(3)A,α=80.44(3),β=85.25(3),γ=62.88(3)°,V=992.2(3)A3,Z=2,Dc=1.247g/cm3,F(000)=396,R=0.0520,wR2=0.1434for4336observedreflectionswith[I>2σ(I)].X-rayana...

简介：RationalizationofIndustrialStructureisessentialcharacteristicofeconomicdevelopmentandkeytopromotesustained,stable,coordinatedeconomicdevelopmentaswell.BasedonGreyRelevancyDegree,thepaperistoanalyzeindustrystructureinWenzhou,China.Andgivetheevaluationforrationalizationofindustrialstructure.

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