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MD5 算法破译过程的解析:分析了MD5 算法中逻辑函数的性质,阐述了两种差分的关系,详细论述了差分路径的控制过程。以王小云的研究数据为基础,从手工推算和程序两方面进行了测试和分析,进行了部分修正,进一步说明了控制差分路径的关键点,对Hash 函数的破译分析有着重要的作用。 相似文献
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Effect of Cerium on Activity of α-Amylase from Porcine Pancreas 总被引:1,自引:0,他引:1
Rareearthscanaffectchloroplastultra structure[1~ 3 ] andenzymeactivity[4~ 7] ,bywhichoflowconcentration ,biologicalfunc tionsareaccelerated ,butrestrainedathighconcentration .α Amylase ,whichbinds 4or 5calciumionsinformofdipolymer[7] ,playsanimportantroleinthecourseo… 相似文献
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RareEarthElements (REEs)havespecialelec tricstructuresandtheeffectsonvarietiesofbiologicalactivities .REEspromotingnitrogenmetabolismhasbeenmuchreported[1~4 ] .Ourpreviouspapersstudiedlanthanumandeurioumontherootingofloquatplant letinvitro ,showingthatLaandEucanstimulatethegrowthanddevelopmentofroot ,andenhancetheac tivitiesofnitratereductase (NR)significantly[5,6 ] .ltiswellknownthatnitratereductasecatalyzesthere ductionofNO3- toNH4 .Glutaminesynthetase (GS)andglutamatedehydrogenase… 相似文献
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