Following a sticky particle model and its computer simulation scheme proposed in the previous papers, the motions of particles in both 2-and 3-dimensional shear flow fields are simulated. At a steady state of clusteri...Following a sticky particle model and its computer simulation scheme proposed in the previous papers, the motions of particles in both 2-and 3-dimensional shear flow fields are simulated. At a steady state of clustering process, the radial distribution functions are calculated to precisely describe the microstructure of aggregates in dispersions, and the configuration of particles is displayed,which gives a direct view of microstructure. It is found that (1) the kind of the microstructure transforms from compact clusters to a loose network as the concentration of particles increases; (2) the microstructure is independent of shear rate which only dominates the size of clusters formed at steady state.展开更多
目的针对开展超声引导下桡动脉穿刺置管术的ICU危重症患者,施行优化护理措施,评价其护理效果。方法方便选取2021年1月—2023年1月厦门市苏颂医院重症加强护理病房(Intensive Care Unit,ICU)危重症患者80例为研究对象。以盲选法为分组依...目的针对开展超声引导下桡动脉穿刺置管术的ICU危重症患者,施行优化护理措施,评价其护理效果。方法方便选取2021年1月—2023年1月厦门市苏颂医院重症加强护理病房(Intensive Care Unit,ICU)危重症患者80例为研究对象。以盲选法为分组依据,对照组40例、观察组40例。所有患者均开展超声引导下桡动脉穿刺置管术,对照组接受常规护理措施,观察组接受优化护理措施。统计两组的穿刺成功次数情况、术后并发症发生情况、护理满意度情况、穿刺效果相关指标。结果观察组穿刺一次成功率为87.50%,高于对照组的50.00%,穿刺两次及以上成功率为12.50%,低于对照组的47.50%,差异有统计学意义(χ^(2)=13.091、11.667,P均<0.05)。与对照组相比,观察组穿刺时间更短,穿刺次数更少,护理后的生活质量评分、疾病知识掌握程度评分更高,差异有统计学意义(P均<0.05)。结论针对开展超声引导下桡动脉穿刺置管术的ICU危重症患者,施行优化护理措施,能够提升穿刺一次成功率,降低并发症发生率,提高知识掌握率,提高生活质量。展开更多
文摘Following a sticky particle model and its computer simulation scheme proposed in the previous papers, the motions of particles in both 2-and 3-dimensional shear flow fields are simulated. At a steady state of clustering process, the radial distribution functions are calculated to precisely describe the microstructure of aggregates in dispersions, and the configuration of particles is displayed,which gives a direct view of microstructure. It is found that (1) the kind of the microstructure transforms from compact clusters to a loose network as the concentration of particles increases; (2) the microstructure is independent of shear rate which only dominates the size of clusters formed at steady state.
文摘目的针对开展超声引导下桡动脉穿刺置管术的ICU危重症患者,施行优化护理措施,评价其护理效果。方法方便选取2021年1月—2023年1月厦门市苏颂医院重症加强护理病房(Intensive Care Unit,ICU)危重症患者80例为研究对象。以盲选法为分组依据,对照组40例、观察组40例。所有患者均开展超声引导下桡动脉穿刺置管术,对照组接受常规护理措施,观察组接受优化护理措施。统计两组的穿刺成功次数情况、术后并发症发生情况、护理满意度情况、穿刺效果相关指标。结果观察组穿刺一次成功率为87.50%,高于对照组的50.00%,穿刺两次及以上成功率为12.50%,低于对照组的47.50%,差异有统计学意义(χ^(2)=13.091、11.667,P均<0.05)。与对照组相比,观察组穿刺时间更短,穿刺次数更少,护理后的生活质量评分、疾病知识掌握程度评分更高,差异有统计学意义(P均<0.05)。结论针对开展超声引导下桡动脉穿刺置管术的ICU危重症患者,施行优化护理措施,能够提升穿刺一次成功率,降低并发症发生率,提高知识掌握率,提高生活质量。
