Methodology for the electrochemical decomposition of imazethapyr using Ti/SnO2-Sb2O5/PbO2 anode in Na2SO4 medium is suggested in this paper. The electrolysis reaction conditions were optimized. The process of electroc...Methodology for the electrochemical decomposition of imazethapyr using Ti/SnO2-Sb2O5/PbO2 anode in Na2SO4 medium is suggested in this paper. The electrolysis reaction conditions were optimized. The process of electrochemical decomposition was monitored by ultra-violet spectrophotometry and CODCr method. The electrochemical decomposition mechanism of imazethapyr was studied primarily by UV-VIS spectrophotometry. The effectiveness of the electrochemical pretreatment was proved by the comparative aerobic biological treatment test based on the activated sludge process.展开更多
目的探讨肺癌根治术患者围术期肺部感染的危险因素及预防措施。方法回顾性分析我院行胸腔镜下肺癌根治术的120例患者的临床资料,分析发生肺部感染的危险因素及预防措施。结果多因素logistic回归分析显示:年龄>60岁、第一秒用力呼吸量...目的探讨肺癌根治术患者围术期肺部感染的危险因素及预防措施。方法回顾性分析我院行胸腔镜下肺癌根治术的120例患者的临床资料,分析发生肺部感染的危险因素及预防措施。结果多因素logistic回归分析显示:年龄>60岁、第一秒用力呼吸量(Forced breathing in the first second,FEV_1)<80%、TNM肿瘤病理分期(TNM staging system)(Ⅲ~Ⅳ)、手术时间>3h及切除范围(多个肺叶)为肺癌根治术后发生肺部感染的独立危险因素(P<0.05)。结论肺癌术后患者发生肺部感染受到年龄、FEV1、TNM分期、手术时间及切除范围因素的影响,应制定相应的预防措施。展开更多
文摘Methodology for the electrochemical decomposition of imazethapyr using Ti/SnO2-Sb2O5/PbO2 anode in Na2SO4 medium is suggested in this paper. The electrolysis reaction conditions were optimized. The process of electrochemical decomposition was monitored by ultra-violet spectrophotometry and CODCr method. The electrochemical decomposition mechanism of imazethapyr was studied primarily by UV-VIS spectrophotometry. The effectiveness of the electrochemical pretreatment was proved by the comparative aerobic biological treatment test based on the activated sludge process.
文摘目的探讨肺癌根治术患者围术期肺部感染的危险因素及预防措施。方法回顾性分析我院行胸腔镜下肺癌根治术的120例患者的临床资料,分析发生肺部感染的危险因素及预防措施。结果多因素logistic回归分析显示:年龄>60岁、第一秒用力呼吸量(Forced breathing in the first second,FEV_1)<80%、TNM肿瘤病理分期(TNM staging system)(Ⅲ~Ⅳ)、手术时间>3h及切除范围(多个肺叶)为肺癌根治术后发生肺部感染的独立危险因素(P<0.05)。结论肺癌术后患者发生肺部感染受到年龄、FEV1、TNM分期、手术时间及切除范围因素的影响,应制定相应的预防措施。