简介:Verticalwallsurfaceformingofrectangularshellusingmultistageincrementalformingwithsphericalandcylindricalrollers;Apredictionofburstingfailureintubehydroformingprocessesbasedonductilefracturecriterion;Anapproximationmodelofcontactstatebetweenrollandstrand-computationofthree-dimensionaldeformationbehaviorofcontinuouslycaststeelstrandinmultirollspansI;Analysisofhydraulicformingprocessfornoncirculartube;AnalysisofhydrostatictubebulgingwithcylindricaldieusingstaticexplicitFEM;CTRimprovesperformance:managementtoolhelpsmanufacturesgettheirproductsintocustomer'shandsquickly
简介:目的研究寻找解决产后乳胀的有效手段。方法将产后乳胀的产妇随机分为实验1组、实验2组及对照组,实验1组采用发酵面外敷,实验2组采用皮硝外敷,对照组采用传统方法(热敷),观察24h内乳胀消退情况及乳汁排出量。结果实验1组有效率75%,实验2组有效率93%,对照组有效率20%。实验组与对照组疗效比较P〈0.01,2个实验组之间比较P〈0.05,差异均有显著性。乳汁排出量,实验1组为(46.5±13.5)ml/次,实验2组为(50.7±11.4)ml/次,对照组为(19.0±5.0)ml/次2实验组与对照组比较P〈0.01,差异有显著性。结论发酵面外敷疗法和皮硝外敷疗法对产后排乳不畅所致乳胀有明显疗效,皮硝更优。