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抗生素对老年肺部感染患者粪便大肠埃希菌耐药性的影响 被引量:1
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作者 顾小军 吴玉强 +1 位作者 戴群 殷国庆 《南京铁道医学院学报》 2001年第2期100-102,共3页
目的 :观察抗生素对粪便大肠埃希菌耐药性的影响。方法 :对 2 4例医院老年肺炎患者于抗生素治疗前、治疗1周内、停药 1个月后作粪便培养以动态监测大肠埃希菌的耐药性 ,并分析其耐药情况。结果 :粪便大肠埃希菌在用药 1周内其耐药性增... 目的 :观察抗生素对粪便大肠埃希菌耐药性的影响。方法 :对 2 4例医院老年肺炎患者于抗生素治疗前、治疗1周内、停药 1个月后作粪便培养以动态监测大肠埃希菌的耐药性 ,并分析其耐药情况。结果 :粪便大肠埃希菌在用药 1周内其耐药性增强 ,停药 1个月后敏感性部分恢复 ,但不能完全消失。结论 :抗生素能明显增强大肠埃希菌的耐药性 ,应尽量避免全身用药 ,减少耐药性的扩散。 展开更多
关键词 抗生素 耐药 大肠埃希菌 老年人 质粒交换 细胞膜通透性
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Particle Swarm Optimization based predictive control of Proton Exchange Membrane Fuel Cell (PEMFC) 被引量:6
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作者 任远 曹广益 朱新坚 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第3期458-462,共5页
Proton Exchange Membrane Fuel Cells (PEMFCs) are the main focus of their current development as power sources because they are capable of higher power density and faster start-up than other fuel cells. The humidificat... Proton Exchange Membrane Fuel Cells (PEMFCs) are the main focus of their current development as power sources because they are capable of higher power density and faster start-up than other fuel cells. The humidification system and output performance of PEMFC stack are briefly analyzed. Predictive control of PEMFC based on Support Vector Regression Machine (SVRM) is presented and the SVRM is constructed. The processing plant is modelled on SVRM and the predictive control law is obtained by using Particle Swarm Optimization (PSO). The simulation and the results showed that the SVRM and the PSO re-ceding optimization applied to the PEMFC predictive control yielded good performance. 展开更多
关键词 Support Vector Regression Machine (SVRM) Proton Exchange Membrane Fuel Cell (PEMFC) Particle Swarm Optimization (PSO) Predictive control
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