Removal of SO2 and NOx by pulsed corona combined with in situ alkali absorption was experimentally investigated.In the reactor,a plate-wire-plate combination is devised for generating pulsed corona and then alkaline a...Removal of SO2 and NOx by pulsed corona combined with in situ alkali absorption was experimentally investigated.In the reactor,a plate-wire-plate combination is devised for generating pulsed corona and then alkaline absorbent slurries were introduced into the reactor by a continuous band conveying system to capture the gaseous reaction products.It was found that both SO2 and NO could be removed by corona combined with in situ alkali absorption.The removal of SO2 increased to 75%with the corona discharge,compared with 60%removal only with Ca(OH)2 absorption.About 40%removal of NO was reached by pulsed corona combined with in situ Ca(OH)2 absorption.It was found that SO2 and NO in the gas stream are oxidized to SO3 and NO2 by pulsed corona respectively,and then absorbed by the alkali in the reactor.The removals of SO2 as well as NO were higher with Ca(OH)2 as the absorbent,compared with using CaCO3 or ZnO.展开更多
目的:探讨血清内皮细胞特异性分子-1(ESM-1)、可溶性ST2(sST2)水平变化与脓毒症患者疾病转归的关联性。方法:选取2018年3月〜2020年8月我院脓毒症患者93例作为观察组,同期重症肺炎患者76例作为对照Ⅰ组、健康体检者76例作为对照Ⅱ组。对...目的:探讨血清内皮细胞特异性分子-1(ESM-1)、可溶性ST2(sST2)水平变化与脓毒症患者疾病转归的关联性。方法:选取2018年3月〜2020年8月我院脓毒症患者93例作为观察组,同期重症肺炎患者76例作为对照Ⅰ组、健康体检者76例作为对照Ⅱ组。对比三组及观察组不同预后(28天内是否病死)患者血清ESM-1、sST2水平,采用Logistic回归分析模型、多元线性回归模型分析血清ESM-1、sST2水平变化与脓毒症疾病转归的关联性。结果:观察组血清ESM-1、sST2水平高于对照Ⅰ组、对照Ⅱ组(P<0.05);预后不良患者血清ESM-1、sST2水平高于预后良好患者(P<O.O5);急性生理与慢性健康(Acute physiology and chronic health evaluation,APACHEⅡ)评分、血清降钙素原、ESM-1、sST2水平均是预后的危险因素(P<0.05);经多元线性回归模型校正降钙素原、APACHE-Ⅱ评分混杂因素后,血清ESM-1、sST2水平仍与预后不良有关(P<0.05)o结论:血清ESM-1、sST2水平变化与脓毒症患者疾病转归呈独立显著相关,可为临床评价转归,制定治疗方案提供参考。展开更多
基金Supported by the Science and Technology Development Project of Zhejiang Province(2007C13085)Hangzhou City(20070733B28)
文摘Removal of SO2 and NOx by pulsed corona combined with in situ alkali absorption was experimentally investigated.In the reactor,a plate-wire-plate combination is devised for generating pulsed corona and then alkaline absorbent slurries were introduced into the reactor by a continuous band conveying system to capture the gaseous reaction products.It was found that both SO2 and NO could be removed by corona combined with in situ alkali absorption.The removal of SO2 increased to 75%with the corona discharge,compared with 60%removal only with Ca(OH)2 absorption.About 40%removal of NO was reached by pulsed corona combined with in situ Ca(OH)2 absorption.It was found that SO2 and NO in the gas stream are oxidized to SO3 and NO2 by pulsed corona respectively,and then absorbed by the alkali in the reactor.The removals of SO2 as well as NO were higher with Ca(OH)2 as the absorbent,compared with using CaCO3 or ZnO.
文摘目的:探讨血清内皮细胞特异性分子-1(ESM-1)、可溶性ST2(sST2)水平变化与脓毒症患者疾病转归的关联性。方法:选取2018年3月〜2020年8月我院脓毒症患者93例作为观察组,同期重症肺炎患者76例作为对照Ⅰ组、健康体检者76例作为对照Ⅱ组。对比三组及观察组不同预后(28天内是否病死)患者血清ESM-1、sST2水平,采用Logistic回归分析模型、多元线性回归模型分析血清ESM-1、sST2水平变化与脓毒症疾病转归的关联性。结果:观察组血清ESM-1、sST2水平高于对照Ⅰ组、对照Ⅱ组(P<0.05);预后不良患者血清ESM-1、sST2水平高于预后良好患者(P<O.O5);急性生理与慢性健康(Acute physiology and chronic health evaluation,APACHEⅡ)评分、血清降钙素原、ESM-1、sST2水平均是预后的危险因素(P<0.05);经多元线性回归模型校正降钙素原、APACHE-Ⅱ评分混杂因素后,血清ESM-1、sST2水平仍与预后不良有关(P<0.05)o结论:血清ESM-1、sST2水平变化与脓毒症患者疾病转归呈独立显著相关,可为临床评价转归,制定治疗方案提供参考。
