简介:现代血气分析仪在临床ICU、CCU中的广泛应用,给临床治疗观察带来了方便。如何才能使该仪器在使用中尽可能地减少故障?介绍AVLOPTI-CCA血气分析仪在使用中出现的若干故障及其排除的方法,并总结出其维护的一些经验以供同行参考。
简介:BasedonthetheoryofCanonicalCorrelationAnalysis(CCA),thecorrelationbetween500hPageopotentialheight(H)fieldsovertheNorthernHemisphere(NH)anda15-regionrainfall(R)fieldofChinainMayisstudied.Theresultsindicatethat:(1)thereisastrongrelationshipbetweentheHfieldsinJanuary/MayandtheRfieldinChina,(2)thevariationofthegeneralcirculationoverthewholeNH(especiallythe500hPaHfieldoverEuropeandAsia)canaffecttheRinChina,(3)inJanuaryandFebruarytheatmosphericgeneralcirculationcanaffecttheRmainlybymeansofplanetarywaves,whileinAprilandMaythemaincontrolmechanismcanbeduetosometeleconnections,and(4)thecharacteristicvectorsforRinMayandHfromJanuarytoMayhavewavetrainstructure,alternatingsignfromsouthtonorth.